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-rw-r--r--cpu/ppc4xx/405gp_enet.c30
-rw-r--r--cpu/ppc4xx/405gp_pci.c6
-rw-r--r--cpu/ppc4xx/440gx_enet.c44
-rw-r--r--cpu/ppc4xx/Makefile2
-rw-r--r--cpu/ppc4xx/cpu.c44
-rw-r--r--cpu/ppc4xx/cpu_init.c4
-rw-r--r--cpu/ppc4xx/interrupts.c5
-rw-r--r--cpu/ppc4xx/serial.c13
-rw-r--r--cpu/ppc4xx/spd_sdram.c2343
-rw-r--r--cpu/ppc4xx/speed.c95
-rw-r--r--cpu/ppc4xx/start.S39
-rw-r--r--cpu/ppc4xx/usb_ohci.c1648
-rw-r--r--cpu/ppc4xx/usb_ohci.h410
-rw-r--r--cpu/ppc4xx/usbdev.c214
-rw-r--r--cpu/ppc4xx/usbdev.h31
-rw-r--r--cpu/ppc4xx/vecnum.h1
16 files changed, 3686 insertions, 1243 deletions
diff --git a/cpu/ppc4xx/405gp_enet.c b/cpu/ppc4xx/405gp_enet.c
index 9d8e2b6..9c17e31 100644
--- a/cpu/ppc4xx/405gp_enet.c
+++ b/cpu/ppc4xx/405gp_enet.c
@@ -227,7 +227,12 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
/* wait for reset */
while (mfdcr (malmcr) & MAL_CR_MMSR) {
};
-#if defined(CONFIG_440)
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ out32 (ZMII_FER, 0);
+ udelay(100);
+ /* set RII mode */
+ out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
+#elif defined(CONFIG_440)
/* set RMII mode */
out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
#endif /* CONFIG_440 */
@@ -461,6 +466,18 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
out32(ZMII_SSR, in32(ZMII_SSR) | 0x10000000);
else
out32(ZMII_SSR, in32(ZMII_SSR) & ~0x10000000);
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ mfsdr(sdr_mfr, reg);
+ /* set speed */
+ if (speed == _100BASET) {
+ out32(ZMII_SSR, in32(ZMII_SSR) | 0x10000000);
+ reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_100M;
+ } else {
+ reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_10M;
+ out32(ZMII_SSR, in32(ZMII_SSR) & ~0x10000000);
+ }
+ mtsdr(sdr_mfr, reg);
+#endif
#endif
/* Enable broadcast and indvidual address */
@@ -498,11 +515,6 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
/*
* Connect interrupt service routines
*/
-#if !defined(CONFIG_405EP)
- /* 405EP has one EWU interrupt */
- irq_install_handler (VECNUM_EWU0 + (hw_p->devnum * 2),
- (interrupt_handler_t *) enetInt, dev);
-#endif
irq_install_handler (VECNUM_ETH0 + (hw_p->devnum * 2),
(interrupt_handler_t *) enetInt, dev);
}
@@ -993,12 +1005,6 @@ int ppc_4xx_eth_initialize (bd_t * bis)
mtdcr (malrxdeir, 0xffffffff); /* clear pending interrupts */
mtdcr (malier, mal_ier);
-#if defined(CONFIG_405EP)
- /* 405EP has one EWU interrupt */
- irq_install_handler (VECNUM_EWU0,
- (interrupt_handler_t *) enetInt,
- dev);
-#endif
/* install MAL interrupt handler */
irq_install_handler (VECNUM_MS,
(interrupt_handler_t *) enetInt,
diff --git a/cpu/ppc4xx/405gp_pci.c b/cpu/ppc4xx/405gp_pci.c
index 4f1754a..ebbcfd5 100644
--- a/cpu/ppc4xx/405gp_pci.c
+++ b/cpu/ppc4xx/405gp_pci.c
@@ -437,7 +437,7 @@ void pci_440_init (struct pci_controller *hose)
* The PCI initialization sequence enable bit must be set ... if not abort
* pci setup since updating the bit requires chip reset.
*--------------------------------------------------------------------------*/
-#if defined (CONFIG_440_GX)
+#if defined (CONFIG_440_GX) || defined (CONFIG_440_EP) || defined(CONFIG_440_GR)
mfsdr(sdr_sdstp1,strap);
if ( (strap & 0x00010000) == 0 ){
printf("PCI: SDR0_STRP1[PISE] not set.\n");
@@ -498,7 +498,7 @@ void pci_440_init (struct pci_controller *hose)
#if defined(CONFIG_440_GX)
out32r( PCIX0_BRDGOPT1, 0x04000060 ); /* PLB Rq pri highest */
out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 0x83 ); /* Enable host config, clear Timeout, ensure int src1 */
-#else
+#elif defined(PCIX0_BRDGOPT1)
out32r( PCIX0_BRDGOPT1, 0x10000060 ); /* PLB Rq pri highest */
out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 1 ); /* Enable host config */
#endif
@@ -531,7 +531,9 @@ void pci_440_init (struct pci_controller *hose)
#ifdef CONFIG_PCI_SCAN_SHOW
printf("PCI: Bus Dev VenId DevId Class Int\n");
#endif
+#if !defined(CONFIG_440_EP) && !defined(CONFIG_440_GR)
out16r( PCIX0_CMD, in16r( PCIX0_CMD ) | PCI_COMMAND_MASTER);
+#endif
hose->last_busno = pci_hose_scan(hose);
}
}
diff --git a/cpu/ppc4xx/440gx_enet.c b/cpu/ppc4xx/440gx_enet.c
index 871f83b..24e6ef3 100644
--- a/cpu/ppc4xx/440gx_enet.c
+++ b/cpu/ppc4xx/440gx_enet.c
@@ -167,6 +167,8 @@ static void ppc_440x_eth_halt (struct eth_device *dev)
/* EMAC RESET */
out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+ hw_p->print_speed = 1; /* print speed message again next time */
+
return;
}
@@ -277,7 +279,9 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
unsigned short devnum;
unsigned short reg_short;
sys_info_t sysinfo;
+#if defined(CONFIG_440_GX)
int ethgroup;
+#endif
EMAC_440GX_HW_PST hw_p = dev->priv;
@@ -289,7 +293,6 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
/* Need to get the OPB frequency so we can access the PHY */
get_sys_info (&sysinfo);
-
msr = mfmsr ();
mtmsr (msr & ~(MSR_EE)); /* disable interrupts */
@@ -320,7 +323,12 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
/* MAL Channel RESET */
/* 1st reset MAL channel */
/* Note: writing a 0 to a channel has no effect */
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ mtdcr (maltxcarr, (MAL_TXRX_CASR >> (hw_p->devnum*2)));
+#else
mtdcr (maltxcarr, (MAL_TXRX_CASR >> hw_p->devnum));
+#endif
+
mtdcr (malrxcarr, (MAL_TXRX_CASR >> hw_p->devnum));
/* wait for reset */
@@ -354,7 +362,9 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
out32 (ZMII_FER, 0);
udelay (100);
-#if defined(CONFIG_440_GX)
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ out32 (ZMII_FER, (ZMII_FER_RMII | ZMII_FER_MDI) << ZMII_FER_V (devnum));
+#elif defined(CONFIG_440_GX)
ethgroup = ppc_440x_eth_setup_bridge(devnum, bis);
#else
if ((devnum == 0) || (devnum == 1)) {
@@ -499,6 +509,15 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
(int) speed, (duplex == HALF) ? "HALF" : "FULL");
}
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ mfsdr(sdr_mfr, reg);
+ if (speed == 100) {
+ reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_100M;
+ } else {
+ reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_10M;
+ }
+ mtsdr(sdr_mfr, reg);
+#endif
/* Set ZMII/RGMII speed according to the phy link speed */
reg = in32 (ZMII_SSR);
if ( (speed == 100) || (speed == 1000) )
@@ -618,8 +637,12 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
switch (devnum) {
case 1:
/* setup MAL tx & rx channel pointers */
- mtdcr (maltxbattr, 0x0);
+#if defined (CONFIG_440_EP) || defined (CONFIG_440_GR)
+ mtdcr (maltxctp2r, hw_p->tx);
+#else
mtdcr (maltxctp1r, hw_p->tx);
+#endif
+ mtdcr (maltxbattr, 0x0);
mtdcr (malrxbattr, 0x0);
mtdcr (malrxctp1r, hw_p->rx);
/* set RX buffer size */
@@ -658,7 +681,11 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
}
/* Enable MAL transmit and receive channels */
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ mtdcr (maltxcasr, (MAL_TXRX_CASR >> (hw_p->devnum*2)));
+#else
mtdcr (maltxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
+#endif
mtdcr (malrxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
/* set transmit enable & receive enable */
@@ -1148,19 +1175,24 @@ static int ppc_440x_eth_rx (struct eth_device *dev)
int ppc_440x_eth_initialize (bd_t * bis)
{
static int virgin = 0;
- unsigned long pfc1;
struct eth_device *dev;
int eth_num = 0;
-
EMAC_440GX_HW_PST hw = NULL;
+#if defined(CONFIG_440_GX)
+ unsigned long pfc1;
+
mfsdr (sdr_pfc1, pfc1);
pfc1 &= ~(0x01e00000);
pfc1 |= 0x01200000;
mtsdr (sdr_pfc1, pfc1);
+#endif
/* set phy num and mode */
bis->bi_phynum[0] = CONFIG_PHY_ADDR;
+#if defined(CONFIG_PHY1_ADDR)
bis->bi_phynum[1] = CONFIG_PHY1_ADDR;
+#endif
+#if defined(CONFIG_440_GX)
bis->bi_phynum[2] = CONFIG_PHY2_ADDR;
bis->bi_phynum[3] = CONFIG_PHY3_ADDR;
bis->bi_phymode[0] = 0;
@@ -1171,6 +1203,7 @@ int ppc_440x_eth_initialize (bd_t * bis)
#if defined (CONFIG_440_GX)
ppc_440x_eth_setup_bridge(0, bis);
#endif
+#endif
for (eth_num = 0; eth_num < EMAC_NUM_DEV; eth_num++) {
@@ -1256,6 +1289,7 @@ int ppc_440x_eth_initialize (bd_t * bis)
}
hw->devnum = eth_num;
+ hw->print_speed = 1;
sprintf (dev->name, "ppc_440x_eth%d", eth_num);
dev->priv = (void *) hw;
diff --git a/cpu/ppc4xx/Makefile b/cpu/ppc4xx/Makefile
index a841109..5b16754 100644
--- a/cpu/ppc4xx/Makefile
+++ b/cpu/ppc4xx/Makefile
@@ -31,7 +31,7 @@ COBJS = 405gp_enet.o 405gp_pci.o 440gx_enet.o \
bedbug_405.o commproc.o \
cpu.o cpu_init.o i2c.o interrupts.o \
miiphy.o miiphy_440.o sdram.o serial.o \
- spd_sdram.o speed.o traps.o
+ spd_sdram.o speed.o traps.o usb_ohci.o usbdev.o
OBJS = $(AOBJS) $(COBJS)
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index 06acb81..ae45a23 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -71,17 +71,17 @@ int checkcpu (void)
get_sys_info(&sys_info);
#ifdef CONFIG_405GP
- puts ("IBM PowerPC 405GP");
+ puts ("AMCC PowerPC 405GP");
if (pvr == PVR_405GPR_RB) {
putc('r');
}
puts (" Rev. ");
#endif
#ifdef CONFIG_405CR
- puts ("IBM PowerPC 405CR Rev. ");
+ puts ("AMCC PowerPC 405CR Rev. ");
#endif
#ifdef CONFIG_405EP
- puts ("IBM PowerPC 405EP Rev. ");
+ puts ("AMCC PowerPC 405EP Rev. ");
#endif
switch (pvr) {
case PVR_405GP_RB:
@@ -152,10 +152,10 @@ int checkcpu (void)
#endif
#if defined(CONFIG_440)
- puts ("IBM PowerPC 440 G");
+ puts ("AMCC PowerPC 440 ");
switch(pvr) {
case PVR_440GP_RB:
- puts("P Rev. B");
+ puts("GP Rev. B");
/* See errata 1.12: CHIP_4 */
if ((mfdcr(cpc0_sys0) != mfdcr(cpc0_strp0)) ||
(mfdcr(cpc0_sys1) != mfdcr(cpc0_strp1)) ){
@@ -167,19 +167,35 @@ int checkcpu (void)
}
break;
case PVR_440GP_RC:
- puts("P Rev. C");
+ puts("GP Rev. C");
break;
case PVR_440GX_RA:
- puts("X Rev. A");
+ puts("GX Rev. A");
break;
case PVR_440GX_RB:
- puts("X Rev. B");
+ puts("GX Rev. B");
break;
case PVR_440GX_RC:
- puts("X Rev. C");
+ puts("GX Rev. C");
break;
+#if defined(CONFIG_440_GR)
+ case PVR_440EP_RA:
+ puts("GR Rev. A");
+ break;
+ case PVR_440EP_RB:
+ puts("GR Rev. B");
+ break;
+#else
+ case PVR_440EP_RA:
+ puts("EP Rev. A");
+ break;
+ case PVR_440EP_RB:
+ puts("EP Rev. B");
+ break;
+#endif
+
default:
- printf (" UNKNOWN (PVR=%08x)", pvr);
+ printf ("UNKNOWN (PVR=%08x)", pvr);
break;
}
#endif
@@ -193,6 +209,12 @@ int checkcpu (void)
int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
+#if defined(CONFIG_YOSEMITE) || defined(CONFIG_YELLOWSTONE)
+ /*give reset to BCSR*/
+ *(unsigned char*)(CFG_BCSR_BASE | 0x06) = 0x09;
+
+#else
+
/*
* Initiate system reset in debug control register DBCR
*/
@@ -202,6 +224,8 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
#else
__asm__ __volatile__("mtspr 0x3f2, 3");
#endif
+
+#endif/* defined(CONFIG_YOSEMITE) || defined(CONFIG_YELLOWSTONE)*/
return 1;
}
diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c
index 25508e7..74f0135 100644
--- a/cpu/ppc4xx/cpu_init.c
+++ b/cpu/ppc4xx/cpu_init.c
@@ -188,7 +188,11 @@ cpu_init_f (void)
unsigned long val;
val = mfspr(tcr);
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ val |= 0xb8000000; /* generate system reset after 1.34 seconds */
+#else
val |= 0xf0000000; /* generate system reset after 2.684 seconds */
+#endif
mtspr(tcr, val);
val = mfspr(tsr);
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c
index 90899dd..c0e51f9 100644
--- a/cpu/ppc4xx/interrupts.c
+++ b/cpu/ppc4xx/interrupts.c
@@ -430,7 +430,10 @@ void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)
#endif /* CONFIG_440_GX */
#endif /* CONFIG_440 */
- if (irqa[i].handler != NULL) {
+ /*
+ * print warning when replacing with a different irq vector
+ */
+ if ((irqa[i].handler != NULL) && (irqa[i].handler != handler)) {
printf ("Interrupt vector %d: handler 0x%x replacing 0x%x\n",
vec, (uint) handler, (uint) irqa[i].handler);
}
diff --git a/cpu/ppc4xx/serial.c b/cpu/ppc4xx/serial.c
index 4abd3fc..92f8ddb 100644
--- a/cpu/ppc4xx/serial.c
+++ b/cpu/ppc4xx/serial.c
@@ -269,9 +269,14 @@ int serial_tstc ()
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || defined(CONFIG_405EP)
#if defined(CONFIG_440)
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+#define UART0_BASE CFG_PERIPHERAL_BASE + 0x00000300
+#define UART1_BASE CFG_PERIPHERAL_BASE + 0x00000400
+#else
#define UART0_BASE CFG_PERIPHERAL_BASE + 0x00000200
#define UART1_BASE CFG_PERIPHERAL_BASE + 0x00000300
-#if defined(CONFIG_440_GX)
+#endif
+#if defined(CONFIG_440_GX) || defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
#define CR0_MASK 0xdfffffff
#define CR0_EXTCLK_ENA 0x00800000
#define CR0_UDIV_POS 0
@@ -301,14 +306,14 @@ int serial_tstc ()
#if defined(CONFIG_UART1_CONSOLE)
#define ACTING_UART0_BASE UART1_BASE
#define ACTING_UART1_BASE UART0_BASE
-#if defined(CONFIG_440_GX)
+#if defined(CONFIG_440_GX) || defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
#define UART0_SDR sdr_uart1
#define UART1_SDR sdr_uart0
#endif /* CONFIG_440_GX */
#else
#define ACTING_UART0_BASE UART0_BASE
#define ACTING_UART1_BASE UART1_BASE
-#if defined(CONFIG_440_GX)
+#if defined(CONFIG_440_GX) || defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
#define UART0_SDR sdr_uart0
#define UART1_SDR sdr_uart1
#endif /* CONFIG_440_GX */
@@ -460,7 +465,7 @@ int serial_init(void)
serial_divs (gd->baudrate, &udiv, &bdiv);
#endif
-#if defined(CONFIG_440_GX)
+#if defined(CONFIG_440_GX) || defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
reg |= udiv << CR0_UDIV_POS; /* set the UART divisor */
#if defined(CONFIG_SERIAL_MULTI)
if (UART0_BASE == dev_base) {
diff --git a/cpu/ppc4xx/spd_sdram.c b/cpu/ppc4xx/spd_sdram.c
index 794a72c..520107a 100644
--- a/cpu/ppc4xx/spd_sdram.c
+++ b/cpu/ppc4xx/spd_sdram.c
@@ -16,6 +16,9 @@
* Jun Gu, Artesyn Technology, jung@artesyncp.com
* Support for IBM 440 based on OpenBIOS draminit.c from IBM.
*
+ * (C) Copyright 2005
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -53,7 +56,9 @@
#define CFG_I2C_SLAVE 0xFE
#endif
-#ifndef CONFIG_440 /* for 405 WALNUT board */
+#define ONE_BILLION 1000000000
+
+#ifndef CONFIG_440 /* for 405 WALNUT/SYCAMORE/BUBINGA boards */
#define SDRAM0_CFG_DCE 0x80000000
#define SDRAM0_CFG_SRE 0x40000000
@@ -111,7 +116,7 @@ int spd_read(uint addr);
long int spd_sdram(int(read_spd)(uint addr))
{
- int bus_period,tmp,row,col;
+ int tmp,row,col;
int total_size,bank_size,bank_code;
int ecc_on;
int mode;
@@ -141,226 +146,189 @@ long int spd_sdram(int(read_spd)(uint addr))
int t_rc;
int min_cas;
- if(read_spd == 0){
- read_spd=spd_read;
- /*
- * Make sure I2C controller is initialized
- * before continuing.
- */
- i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
- }
-
+ PPC405_SYS_INFO sys_info;
+ unsigned long bus_period_x_10;
/*
- * Calculate the bus period, we do it this
- * way to minimize stack utilization.
+ * get the board info
*/
-#ifndef CONFIG_405EP
- tmp = (mfdcr(pllmd) >> (31-6)) & 0xf; /* get FBDV bits */
- tmp = CONFIG_SYS_CLK_FREQ * tmp; /* get plb freq */
-#else
- {
- unsigned long freqCPU;
- unsigned long pllmr0;
- unsigned long pllmr1;
- unsigned long pllFbkDiv;
- unsigned long pllPlbDiv;
- unsigned long pllmr0_ccdv;
-
- /*
- * Read PLL Mode registers
- */
- pllmr0 = mfdcr (cpc0_pllmr0);
- pllmr1 = mfdcr (cpc0_pllmr1);
-
- pllFbkDiv = ((pllmr1 & PLLMR1_FBMUL_MASK) >> 20);
- if (pllFbkDiv == 0) {
- pllFbkDiv = 16;
- }
- pllPlbDiv = ((pllmr0 & PLLMR0_CPU_TO_PLB_MASK) >> 16) + 1;
-
- /*
- * Determine CPU clock frequency
- */
- pllmr0_ccdv = ((pllmr0 & PLLMR0_CPU_DIV_MASK) >> 20) + 1;
- if (pllmr1 & PLLMR1_SSCS_MASK) {
- freqCPU = (CONFIG_SYS_CLK_FREQ * pllFbkDiv) / pllmr0_ccdv;
- } else {
- freqCPU = CONFIG_SYS_CLK_FREQ / pllmr0_ccdv;
- }
+ get_sys_info(&sys_info);
+ bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
+ if (read_spd == 0){
+ read_spd=spd_read;
/*
- * Determine PLB clock frequency
+ * Make sure I2C controller is initialized
+ * before continuing.
*/
- tmp = freqCPU / pllPlbDiv;
+ i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
}
-#endif
- bus_period = sdram_HZ_to_ns(tmp); /* get sdram speed */
/* Make shure we are using SDRAM */
- if (read_spd(2) != 0x04){
- SPD_ERR("SDRAM - non SDRAM memory module found\n");
- }
-
-/*------------------------------------------------------------------
- configure memory timing register
+ if (read_spd(2) != 0x04) {
+ SPD_ERR("SDRAM - non SDRAM memory module found\n");
+ }
- data from DIMM:
- 27 IN Row Precharge Time ( t RP)
- 29 MIN RAS to CAS Delay ( t RCD)
- 127 Component and Clock Detail ,clk0-clk3, junction temp, CAS
- -------------------------------------------------------------------*/
+ /* ------------------------------------------------------------------
+ * configure memory timing register
+ *
+ * data from DIMM:
+ * 27 IN Row Precharge Time ( t RP)
+ * 29 MIN RAS to CAS Delay ( t RCD)
+ * 127 Component and Clock Detail ,clk0-clk3, junction temp, CAS
+ * -------------------------------------------------------------------*/
- /*
- * first figure out which cas latency mode to use
- * use the min supported mode
- */
+ /*
+ * first figure out which cas latency mode to use
+ * use the min supported mode
+ */
tmp = read_spd(127) & 0x6;
- if(tmp == 0x02){ /* only cas = 2 supported */
- min_cas = 2;
+ if (tmp == 0x02){ /* only cas = 2 supported */
+ min_cas = 2;
/* t_ck = read_spd(9); */
/* t_ac = read_spd(10); */
- }
- else if (tmp == 0x04){ /* only cas = 3 supported */
- min_cas = 3;
+ } else if (tmp == 0x04) { /* only cas = 3 supported */
+ min_cas = 3;
/* t_ck = read_spd(9); */
/* t_ac = read_spd(10); */
- }
- else if (tmp == 0x06){ /* 2,3 supported, so use 2 */
- min_cas = 2;
+ } else if (tmp == 0x06) { /* 2,3 supported, so use 2 */
+ min_cas = 2;
/* t_ck = read_spd(23); */
/* t_ac = read_spd(24); */
- }
- else {
- SPD_ERR("SDRAM - unsupported CAS latency \n");
+ } else {
+ SPD_ERR("SDRAM - unsupported CAS latency \n");
}
- /* get some timing values, t_rp,t_rcd,t_ras,t_rc
- */
- t_rp = read_spd(27);
- t_rcd = read_spd(29);
- t_ras = read_spd(30);
- t_rc = t_ras + t_rp;
-
- /* The following timing calcs subtract 1 before deviding.
- * this has effect of using ceiling instead of floor rounding,
- * and also subtracting 1 to convert number to reg value
- */
- /* set up CASL */
- sdram0_tr = (min_cas - 1) << SDRAM0_TR_CASL_SHIFT;
- /* set up PTA */
- sdram0_tr |= (((t_rp - 1)/bus_period) & 0x3) << SDRAM0_TR_PTA_SHIFT;
- /* set up CTP */
- tmp = ((t_rc - t_rcd - t_rp -1) / bus_period) & 0x3;
- if(tmp<1) tmp=1;
- sdram0_tr |= tmp << SDRAM0_TR_CTP_SHIFT;
- /* set LDF = 2 cycles, reg value = 1 */
- sdram0_tr |= 1 << SDRAM0_TR_LDF_SHIFT;
- /* set RFTA = t_rfc/bus_period, use t_rfc = t_rc */
- tmp = ( (t_rc - 1) / bus_period)-3;
- if(tmp<0)tmp=0;
- if(tmp>6)tmp=6;
+ /* get some timing values, t_rp,t_rcd,t_ras,t_rc
+ */
+ t_rp = read_spd(27);
+ t_rcd = read_spd(29);
+ t_ras = read_spd(30);
+ t_rc = t_ras + t_rp;
+
+ /* The following timing calcs subtract 1 before deviding.
+ * this has effect of using ceiling instead of floor rounding,
+ * and also subtracting 1 to convert number to reg value
+ */
+ /* set up CASL */
+ sdram0_tr = (min_cas - 1) << SDRAM0_TR_CASL_SHIFT;
+ /* set up PTA */
+ sdram0_tr |= ((((t_rp - 1) * 10)/bus_period_x_10) & 0x3) << SDRAM0_TR_PTA_SHIFT;
+ /* set up CTP */
+ tmp = (((t_rc - t_rcd - t_rp -1) * 10) / bus_period_x_10) & 0x3;
+ if (tmp < 1)
+ tmp = 1;
+ sdram0_tr |= tmp << SDRAM0_TR_CTP_SHIFT;
+ /* set LDF = 2 cycles, reg value = 1 */
+ sdram0_tr |= 1 << SDRAM0_TR_LDF_SHIFT;
+ /* set RFTA = t_rfc/bus_period, use t_rfc = t_rc */
+ tmp = (((t_rc - 1) * 10) / bus_period_x_10) - 3;
+ if (tmp < 0)
+ tmp = 0;
+ if (tmp > 6)
+ tmp = 6;
sdram0_tr |= tmp << SDRAM0_TR_RFTA_SHIFT;
- /* set RCD = t_rcd/bus_period*/
- sdram0_tr |= (((t_rcd - 1) / bus_period) &0x3) << SDRAM0_TR_RCD_SHIFT ;
+ /* set RCD = t_rcd/bus_period*/
+ sdram0_tr |= ((((t_rcd - 1) * 10) / bus_period_x_10) &0x3) << SDRAM0_TR_RCD_SHIFT ;
-/*------------------------------------------------------------------
- configure RTR register
- -------------------------------------------------------------------*/
- row = read_spd(3);
- col = read_spd(4);
- tmp = read_spd(12) & 0x7f ; /* refresh type less self refresh bit */
- switch(tmp){
+ /*------------------------------------------------------------------
+ * configure RTR register
+ * -------------------------------------------------------------------*/
+ row = read_spd(3);
+ col = read_spd(4);
+ tmp = read_spd(12) & 0x7f ; /* refresh type less self refresh bit */
+ switch (tmp) {
case 0x00:
- tmp=15625;
- break;
+ tmp = 15625;
+ break;
case 0x01:
- tmp=15625/4;
- break;
+ tmp = 15625 / 4;
+ break;
case 0x02:
- tmp=15625/2;
- break;
+ tmp = 15625 / 2;
+ break;
case 0x03:
- tmp=15625*2;
- break;
+ tmp = 15625 * 2;
+ break;
case 0x04:
- tmp=15625*4;
- break;
+ tmp = 15625 * 4;
+ break;
case 0x05:
- tmp=15625*8;
- break;
+ tmp = 15625 * 8;
+ break;
default:
- SPD_ERR("SDRAM - Bad refresh period \n");
+ SPD_ERR("SDRAM - Bad refresh period \n");
}
/* convert from nsec to bus cycles */
- tmp = tmp/bus_period;
- sdram0_rtr = (tmp & 0x3ff8)<< SDRAM0_RTR_SHIFT;
+ tmp = (tmp * 10) / bus_period_x_10;
+ sdram0_rtr = (tmp & 0x3ff8) << SDRAM0_RTR_SHIFT;
-/*------------------------------------------------------------------
- determine the number of banks used
- -------------------------------------------------------------------*/
+ /*------------------------------------------------------------------
+ * determine the number of banks used
+ * -------------------------------------------------------------------*/
/* byte 7:6 is module data width */
- if(read_spd(7) != 0)
- SPD_ERR("SDRAM - unsupported module width\n");
+ if (read_spd(7) != 0)
+ SPD_ERR("SDRAM - unsupported module width\n");
tmp = read_spd(6);
if (tmp < 32)
- SPD_ERR("SDRAM - unsupported module width\n");
+ SPD_ERR("SDRAM - unsupported module width\n");
else if (tmp < 64)
- bank_cnt=1; /* one bank per sdram side */
+ bank_cnt = 1; /* one bank per sdram side */
else if (tmp < 73)
- bank_cnt=2; /* need two banks per side */
+ bank_cnt = 2; /* need two banks per side */
else if (tmp < 161)
- bank_cnt=4; /* need four banks per side */
+ bank_cnt = 4; /* need four banks per side */
else
- SPD_ERR("SDRAM - unsupported module width\n");
+ SPD_ERR("SDRAM - unsupported module width\n");
/* byte 5 is the module row count (refered to as dimm "sides") */
tmp = read_spd(5);
- if(tmp==1);
- else if(tmp==2) bank_cnt *=2;
- else if(tmp==4) bank_cnt *=4;
- else bank_cnt = 8; /* 8 is an error code */
+ if (tmp == 1)
+ ;
+ else if (tmp==2)
+ bank_cnt *= 2;
+ else if (tmp==4)
+ bank_cnt *= 4;
+ else
+ bank_cnt = 8; /* 8 is an error code */
- if(bank_cnt > 4) /* we only have 4 banks to work with */
- SPD_ERR("SDRAM - unsupported module rows for this width\n");
+ if (bank_cnt > 4) /* we only have 4 banks to work with */
+ SPD_ERR("SDRAM - unsupported module rows for this width\n");
/* now check for ECC ability of module. We only support ECC
* on 32 bit wide devices with 8 bit ECC.
*/
- if ( (read_spd(11)==2) && (read_spd(6)==40) && (read_spd(14)==8) ){
- sdram0_ecccfg=0xf<<SDRAM0_ECCCFG_SHIFT;
- ecc_on = 1;
- }
- else{
- sdram0_ecccfg=0;
- ecc_on = 0;
+ if ((read_spd(11)==2) && (read_spd(6)==40) && (read_spd(14)==8)) {
+ sdram0_ecccfg = 0xf << SDRAM0_ECCCFG_SHIFT;
+ ecc_on = 1;
+ } else {
+ sdram0_ecccfg = 0;
+ ecc_on = 0;
}
-/*------------------------------------------------------------------
- calculate total size
- -------------------------------------------------------------------*/
+ /*------------------------------------------------------------------
+ * calculate total size
+ * -------------------------------------------------------------------*/
/* calculate total size and do sanity check */
tmp = read_spd(31);
- total_size=1<<22; /* total_size = 4MB */
+ total_size = 1 << 22; /* total_size = 4MB */
/* now multiply 4M by the smallest device row density */
/* note that we don't support asymetric rows */
- while (((tmp & 0x0001) == 0) && (tmp != 0)){
- total_size= total_size<<1;
- tmp = tmp>>1;
- }
+ while (((tmp & 0x0001) == 0) && (tmp != 0)) {
+ total_size = total_size << 1;
+ tmp = tmp >> 1;
+ }
total_size *= read_spd(5); /* mult by module rows (dimm sides) */
-/*------------------------------------------------------------------
- map rows * cols * banks to a mode
- -------------------------------------------------------------------*/
+ /*------------------------------------------------------------------
+ * map rows * cols * banks to a mode
+ * -------------------------------------------------------------------*/
- switch( row )
- {
+ switch (row) {
case 11:
- switch ( col )
- {
+ switch (col) {
case 8:
mode=4; /* mode 5 */
break;
@@ -369,12 +337,11 @@ long int spd_sdram(int(read_spd)(uint addr))
mode=0; /* mode 1 */
break;
default:
- SPD_ERR("SDRAM - unsupported mode\n");
+ SPD_ERR("SDRAM - unsupported mode\n");
}
break;
case 12:
- switch ( col )
- {
+ switch (col) {
case 8:
mode=3; /* mode 4 */
break;
@@ -383,37 +350,36 @@ long int spd_sdram(int(read_spd)(uint addr))
mode=1; /* mode 2 */
break;
default:
- SPD_ERR("SDRAM - unsupported mode\n");
+ SPD_ERR("SDRAM - unsupported mode\n");
}
break;
case 13:
- switch ( col )
- {
+ switch (col) {
case 8:
mode=5; /* mode 6 */
break;
case 9:
case 10:
- if (read_spd(17) ==2 )
- mode=6; /* mode 7 */
+ if (read_spd(17) == 2)
+ mode = 6; /* mode 7 */
else
- mode=2; /* mode 3 */
+ mode = 2; /* mode 3 */
break;
case 11:
- mode=2; /* mode 3 */
+ mode = 2; /* mode 3 */
break;
default:
- SPD_ERR("SDRAM - unsupported mode\n");
+ SPD_ERR("SDRAM - unsupported mode\n");
}
break;
default:
- SPD_ERR("SDRAM - unsupported mode\n");
+ SPD_ERR("SDRAM - unsupported mode\n");
}
-/*------------------------------------------------------------------
- using the calculated values, compute the bank
- config register values.
- -------------------------------------------------------------------*/
+ /*------------------------------------------------------------------
+ * using the calculated values, compute the bank
+ * config register values.
+ * -------------------------------------------------------------------*/
sdram0_b1cr = 0;
sdram0_b2cr = 0;
sdram0_b3cr = 0;
@@ -421,44 +387,46 @@ long int spd_sdram(int(read_spd)(uint addr))
/* compute the size of each bank */
bank_size = total_size / bank_cnt;
/* convert bank size to bank size code for ppc4xx
- by takeing log2(bank_size) - 22 */
- tmp=bank_size; /* start with tmp = bank_size */
- bank_code=0; /* and bank_code = 0 */
- while (tmp>1){ /* this takes log2 of tmp */
+ by takeing log2(bank_size) - 22 */
+ tmp = bank_size; /* start with tmp = bank_size */
+ bank_code = 0; /* and bank_code = 0 */
+ while (tmp > 1) { /* this takes log2 of tmp */
bank_code++; /* and stores result in bank_code */
- tmp=tmp>>1;
- } /* bank_code is now log2(bank_size) */
- bank_code-=22; /* subtract 22 to get the code */
+ tmp = tmp >> 1;
+ } /* bank_code is now log2(bank_size) */
+ bank_code -= 22; /* subtract 22 to get the code */
tmp = SDRAM0_BXCR_SZ(bank_code) | SDRAM0_BXCR_AM(mode) | 1;
- sdram0_b0cr = (bank_size) * 0 | tmp;
+ sdram0_b0cr = (bank_size * 0) | tmp;
#ifndef CONFIG_405EP /* not on PPC405EP */
- if(bank_cnt>1) sdram0_b2cr = (bank_size) * 1 | tmp;
- if(bank_cnt>2) sdram0_b1cr = (bank_size) * 2 | tmp;
- if(bank_cnt>3) sdram0_b3cr = (bank_size) * 3 | tmp;
+ if (bank_cnt > 1)
+ sdram0_b2cr = (bank_size * 1) | tmp;
+ if (bank_cnt > 2)
+ sdram0_b1cr = (bank_size * 2) | tmp;
+ if (bank_cnt > 3)
+ sdram0_b3cr = (bank_size * 3) | tmp;
#else
/* PPC405EP chip only supports two SDRAM banks */
- if(bank_cnt>1) sdram0_b1cr = (bank_size) * 1 | tmp;
- if(bank_cnt>2) total_size -= (bank_size) * (bank_cnt - 2);
+ if (bank_cnt > 1)
+ sdram0_b1cr = (bank_size * 1) | tmp;
+ if (bank_cnt > 2)
+ total_size = 2 * bank_size;
#endif
-
/*
* enable sdram controller DCE=1
* enable burst read prefetch to 32 bytes BRPF=2
* leave other functions off
*/
-/*------------------------------------------------------------------
- now that we've done our calculations, we are ready to
- program all the registers.
- -------------------------------------------------------------------*/
-
+ /*------------------------------------------------------------------
+ * now that we've done our calculations, we are ready to
+ * program all the registers.
+ * -------------------------------------------------------------------*/
#define mtsdram0(reg, data) mtdcr(memcfga,reg);mtdcr(memcfgd,data)
/* disable memcontroller so updates work */
- sdram0_cfg = 0;
- mtsdram0( mem_mcopt1, sdram0_cfg );
+ mtsdram0( mem_mcopt1, 0 );
#ifndef CONFIG_405EP /* not on PPC405EP */
mtsdram0( mem_besra , sdram0_besr0 );
@@ -479,15 +447,10 @@ long int spd_sdram(int(read_spd)(uint addr))
/* SDRAM have a power on delay, 500 micro should do */
udelay(500);
sdram0_cfg = SDRAM0_CFG_DCE | SDRAM0_CFG_BRPF(1) | SDRAM0_CFG_ECCDD | SDRAM0_CFG_EMDULR;
- if(ecc_on) sdram0_cfg |= SDRAM0_CFG_MEMCHK;
- mtsdram0( mem_mcopt1, sdram0_cfg );
-
+ if (ecc_on)
+ sdram0_cfg |= SDRAM0_CFG_MEMCHK;
+ mtsdram0(mem_mcopt1, sdram0_cfg);
- /* kernel 2.4.2 from mvista has a bug with memory over 128MB */
-#ifdef MVISTA_MEM_BUG
- if (total_size > 128*1024*1024 )
- total_size=128*1024*1024;
-#endif
return (total_size);
}
@@ -504,8 +467,8 @@ int spd_read(uint addr)
#else /* CONFIG_440 */
/*-----------------------------------------------------------------------------
-| Memory Controller Options 0
-+-----------------------------------------------------------------------------*/
+ | Memory Controller Options 0
+ +-----------------------------------------------------------------------------*/
#define SDRAM_CFG0_DCEN 0x80000000 /* SDRAM Controller Enable */
#define SDRAM_CFG0_MCHK_MASK 0x30000000 /* Memory data errchecking mask */
#define SDRAM_CFG0_MCHK_NON 0x00000000 /* No ECC generation */
@@ -520,39 +483,39 @@ int spd_read(uint addr)
#define SDRAM_CFG0_PDP 0x00200000 /* Page deallocation policy */
/*-----------------------------------------------------------------------------
-| Memory Controller Options 1
-+-----------------------------------------------------------------------------*/
+ | Memory Controller Options 1
+ +-----------------------------------------------------------------------------*/
#define SDRAM_CFG1_SRE 0x80000000 /* Self-Refresh Entry */
#define SDRAM_CFG1_PMEN 0x40000000 /* Power Management Enable */
/*-----------------------------------------------------------------------------+
-| SDRAM DEVPOT Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM DEVPOT Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_DEVOPT_DLL 0x80000000
#define SDRAM_DEVOPT_DS 0x40000000
/*-----------------------------------------------------------------------------+
-| SDRAM MCSTS Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM MCSTS Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_MCSTS_MRSC 0x80000000
#define SDRAM_MCSTS_SRMS 0x40000000
#define SDRAM_MCSTS_CIS 0x20000000
/*-----------------------------------------------------------------------------
-| SDRAM Refresh Timer Register
-+-----------------------------------------------------------------------------*/
+ | SDRAM Refresh Timer Register
+ +-----------------------------------------------------------------------------*/
#define SDRAM_RTR_RINT_MASK 0xFFFF0000
#define SDRAM_RTR_RINT_ENCODE(n) (((n) << 16) & SDRAM_RTR_RINT_MASK)
#define sdram_HZ_to_ns(hertz) (1000000000/(hertz))
/*-----------------------------------------------------------------------------+
-| SDRAM UABus Base Address Reg
-+-----------------------------------------------------------------------------*/
+ | SDRAM UABus Base Address Reg
+ +-----------------------------------------------------------------------------*/
#define SDRAM_UABBA_UBBA_MASK 0x0000000F
/*-----------------------------------------------------------------------------+
-| Memory Bank 0-7 configuration
-+-----------------------------------------------------------------------------*/
+ | Memory Bank 0-7 configuration
+ +-----------------------------------------------------------------------------*/
#define SDRAM_BXCR_SDBA_MASK 0xff800000 /* Base address */
#define SDRAM_BXCR_SDSZ_MASK 0x000e0000 /* Size */
#define SDRAM_BXCR_SDSZ_8 0x00020000 /* 8M */
@@ -570,8 +533,8 @@ int spd_read(uint addr)
#define SDRAM_BXCR_SDBE 0x00000001 /* Memory Bank Enable */
/*-----------------------------------------------------------------------------+
-| SDRAM TR0 Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM TR0 Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_TR0_SDWR_MASK 0x80000000
#define SDRAM_TR0_SDWR_2_CLK 0x00000000
#define SDRAM_TR0_SDWR_3_CLK 0x80000000
@@ -609,8 +572,8 @@ int spd_read(uint addr)
#define SDRAM_TR0_SDRD_4_CLK 0x00000003
/*-----------------------------------------------------------------------------+
-| SDRAM TR1 Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM TR1 Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_TR1_RDSS_MASK 0xC0000000
#define SDRAM_TR1_RDSS_TR0 0x00000000
#define SDRAM_TR1_RDSS_TR1 0x40000000
@@ -630,8 +593,8 @@ int spd_read(uint addr)
#define SDRAM_TR1_RDCT_MAX 0x000001FF
/*-----------------------------------------------------------------------------+
-| SDRAM WDDCTR Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM WDDCTR Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_WDDCTR_WRCP_MASK 0xC0000000
#define SDRAM_WDDCTR_WRCP_0DEG 0x00000000
#define SDRAM_WDDCTR_WRCP_90DEG 0x40000000
@@ -639,8 +602,8 @@ int spd_read(uint addr)
#define SDRAM_WDDCTR_DCD_MASK 0x000001FF
/*-----------------------------------------------------------------------------+
-| SDRAM CLKTR Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM CLKTR Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_CLKTR_CLKP_MASK 0xC0000000
#define SDRAM_CLKTR_CLKP_0DEG 0x00000000
#define SDRAM_CLKTR_CLKP_90DEG 0x40000000
@@ -648,18 +611,17 @@ int spd_read(uint addr)
#define SDRAM_CLKTR_DCDT_MASK 0x000001FF
/*-----------------------------------------------------------------------------+
-| SDRAM DLYCAL Options
-+-----------------------------------------------------------------------------*/
+ | SDRAM DLYCAL Options
+ +-----------------------------------------------------------------------------*/
#define SDRAM_DLYCAL_DLCV_MASK 0x000003FC
#define SDRAM_DLYCAL_DLCV_ENCODE(x) (((x)<<2) & SDRAM_DLYCAL_DLCV_MASK)
#define SDRAM_DLYCAL_DLCV_DECODE(x) (((x) & SDRAM_DLYCAL_DLCV_MASK)>>2)
/*-----------------------------------------------------------------------------+
-| General Definition
-+-----------------------------------------------------------------------------*/
+ | General Definition
+ +-----------------------------------------------------------------------------*/
#define DEFAULT_SPD_ADDR1 0x53
#define DEFAULT_SPD_ADDR2 0x52
-#define ONE_BILLION 1000000000
#define MAXBANKS 4 /* at most 4 dimm banks */
#define MAX_SPD_BYTES 256
#define NUMHALFCYCLES 4
@@ -670,22 +632,22 @@ int spd_read(uint addr)
#define FALSE 0
const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = {
- {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
- 0xFFFFFFFF, 0xFFFFFFFF},
- {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
- 0x00000000, 0x00000000},
- {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
- 0x55555555, 0x55555555},
- {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
- 0xAAAAAAAA, 0xAAAAAAAA},
- {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
- 0x5A5A5A5A, 0x5A5A5A5A},
- {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
- 0xA5A5A5A5, 0xA5A5A5A5},
- {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
- 0x55AA55AA, 0x55AA55AA},
- {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
- 0xAA55AA55, 0xAA55AA55}
+ {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
+ 0xFFFFFFFF, 0xFFFFFFFF},
+ {0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0x00000000, 0x00000000},
+ {0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
+ 0x55555555, 0x55555555},
+ {0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
+ 0xAAAAAAAA, 0xAAAAAAAA},
+ {0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
+ 0x5A5A5A5A, 0x5A5A5A5A},
+ {0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
+ 0xA5A5A5A5, 0xA5A5A5A5},
+ {0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
+ 0x55AA55AA, 0x55AA55AA},
+ {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
+ 0xAA55AA55, 0xAA55AA55}
};
@@ -696,14 +658,14 @@ void get_spd_info(unsigned long* dimm_populated,
unsigned long num_dimm_banks);
void check_mem_type
- (unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+(unsigned long* dimm_populated,
+ unsigned char* iic0_dimm_addr,
+ unsigned long num_dimm_banks);
void check_volt_type
- (unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+(unsigned long* dimm_populated,
+ unsigned char* iic0_dimm_addr,
+ unsigned long num_dimm_banks);
void program_cfg0(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
@@ -741,14 +703,14 @@ long program_bxcr(unsigned long* dimm_populated,
*/
long int spd_sdram(void) {
- unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS;
- unsigned long dimm_populated[sizeof(iic0_dimm_addr)];
- unsigned long total_size;
- unsigned long cfg0;
- unsigned long mcsts;
- unsigned long num_dimm_banks; /* on board dimm banks */
+ unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS;
+ unsigned long dimm_populated[sizeof(iic0_dimm_addr)];
+ unsigned long total_size;
+ unsigned long cfg0;
+ unsigned long mcsts;
+ unsigned long num_dimm_banks; /* on board dimm banks */
- num_dimm_banks = sizeof(iic0_dimm_addr);
+ num_dimm_banks = sizeof(iic0_dimm_addr);
/*
* Make sure I2C controller is initialized
@@ -756,90 +718,90 @@ long int spd_sdram(void) {
*/
i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE);
- /*
- * Read the SPD information using I2C interface. Check to see if the
- * DIMM slots are populated.
- */
- get_spd_info(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+ /*
+ * Read the SPD information using I2C interface. Check to see if the
+ * DIMM slots are populated.
+ */
+ get_spd_info(dimm_populated, iic0_dimm_addr, num_dimm_banks);
- /*
- * Check the memory type for the dimms plugged.
- */
- check_mem_type(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+ /*
+ * Check the memory type for the dimms plugged.
+ */
+ check_mem_type(dimm_populated, iic0_dimm_addr, num_dimm_banks);
- /*
- * Check the voltage type for the dimms plugged.
- */
- check_volt_type(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+ /*
+ * Check the voltage type for the dimms plugged.
+ */
+ check_volt_type(dimm_populated, iic0_dimm_addr, num_dimm_banks);
#if defined(CONFIG_440_GX)
- /*
- * Soft-reset SDRAM controller.
- */
- mtsdr(sdr_srst, SDR0_SRST_DMC);
- mtsdr(sdr_srst, 0x00000000);
+ /*
+ * Soft-reset SDRAM controller.
+ */
+ mtsdr(sdr_srst, SDR0_SRST_DMC);
+ mtsdr(sdr_srst, 0x00000000);
#endif
- /*
- * program 440GP SDRAM controller options (SDRAM0_CFG0)
- */
- program_cfg0(dimm_populated, iic0_dimm_addr, num_dimm_banks);
-
- /*
- * program 440GP SDRAM controller options (SDRAM0_CFG1)
- */
- program_cfg1(dimm_populated, iic0_dimm_addr, num_dimm_banks);
-
- /*
- * program SDRAM refresh register (SDRAM0_RTR)
- */
- program_rtr(dimm_populated, iic0_dimm_addr, num_dimm_banks);
-
- /*
- * program SDRAM Timing Register 0 (SDRAM0_TR0)
- */
- program_tr0(dimm_populated, iic0_dimm_addr, num_dimm_banks);
-
- /*
- * program the BxCR registers to find out total sdram installed
- */
- total_size = program_bxcr(dimm_populated, iic0_dimm_addr,
- num_dimm_banks);
-
- /*
- * program SDRAM Clock Timing Register (SDRAM0_CLKTR)
- */
- mtsdram(mem_clktr, 0x40000000);
-
- /*
- * delay to ensure 200 usec has elapsed
- */
- udelay(400);
-
- /*
- * enable the memory controller
- */
- mfsdram(mem_cfg0, cfg0);
- mtsdram(mem_cfg0, cfg0 | SDRAM_CFG0_DCEN);
-
- /*
- * wait for SDRAM_CFG0_DC_EN to complete
- */
- while(1) {
- mfsdram(mem_mcsts, mcsts);
- if ((mcsts & SDRAM_MCSTS_MRSC) != 0) {
- break;
+ /*
+ * program 440GP SDRAM controller options (SDRAM0_CFG0)
+ */
+ program_cfg0(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+
+ /*
+ * program 440GP SDRAM controller options (SDRAM0_CFG1)
+ */
+ program_cfg1(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+
+ /*
+ * program SDRAM refresh register (SDRAM0_RTR)
+ */
+ program_rtr(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+
+ /*
+ * program SDRAM Timing Register 0 (SDRAM0_TR0)
+ */
+ program_tr0(dimm_populated, iic0_dimm_addr, num_dimm_banks);
+
+ /*
+ * program the BxCR registers to find out total sdram installed
+ */
+ total_size = program_bxcr(dimm_populated, iic0_dimm_addr,
+ num_dimm_banks);
+
+ /*
+ * program SDRAM Clock Timing Register (SDRAM0_CLKTR)
+ */
+ mtsdram(mem_clktr, 0x40000000);
+
+ /*
+ * delay to ensure 200 usec has elapsed
+ */
+ udelay(400);
+
+ /*
+ * enable the memory controller
+ */
+ mfsdram(mem_cfg0, cfg0);
+ mtsdram(mem_cfg0, cfg0 | SDRAM_CFG0_DCEN);
+
+ /*
+ * wait for SDRAM_CFG0_DC_EN to complete
+ */
+ while (1) {
+ mfsdram(mem_mcsts, mcsts);
+ if ((mcsts & SDRAM_MCSTS_MRSC) != 0) {
+ break;
+ }
}
- }
- /*
- * program SDRAM Timing Register 1, adding some delays
- */
- program_tr1();
+ /*
+ * program SDRAM Timing Register 1, adding some delays
+ */
+ program_tr1();
- /*
- * if ECC is enabled, initialize parity bits
- */
+ /*
+ * if ECC is enabled, initialize parity bits
+ */
return total_size;
}
@@ -847,76 +809,78 @@ long int spd_sdram(void) {
unsigned char spd_read(uchar chip, uint addr) {
unsigned char data[2];
- if (i2c_read(chip, addr, 1, data, 1) == 0)
- return data[0];
- else
- return 0;
+ if (i2c_probe(chip) == 0) {
+ if (i2c_read(chip, addr, 1, data, 1) == 0) {
+ return data[0];
+ }
+ }
+
+ return 0;
}
void get_spd_info(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned long dimm_found;
- unsigned char num_of_bytes;
- unsigned char total_size;
-
- dimm_found = FALSE;
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- num_of_bytes = 0;
- total_size = 0;
-
- num_of_bytes = spd_read(iic0_dimm_addr[dimm_num], 0);
- total_size = spd_read(iic0_dimm_addr[dimm_num], 1);
-
- if ((num_of_bytes != 0) && (total_size != 0)) {
- dimm_populated[dimm_num] = TRUE;
- dimm_found = TRUE;
+ unsigned long dimm_num;
+ unsigned long dimm_found;
+ unsigned char num_of_bytes;
+ unsigned char total_size;
+
+ dimm_found = FALSE;
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ num_of_bytes = 0;
+ total_size = 0;
+
+ num_of_bytes = spd_read(iic0_dimm_addr[dimm_num], 0);
+ total_size = spd_read(iic0_dimm_addr[dimm_num], 1);
+
+ if ((num_of_bytes != 0) && (total_size != 0)) {
+ dimm_populated[dimm_num] = TRUE;
+ dimm_found = TRUE;
#if 0
- printf("DIMM slot %lu: populated\n", dimm_num);
+ printf("DIMM slot %lu: populated\n", dimm_num);
#endif
- }
- else {
- dimm_populated[dimm_num] = FALSE;
+ } else {
+ dimm_populated[dimm_num] = FALSE;
#if 0
- printf("DIMM slot %lu: Not populated\n", dimm_num);
+ printf("DIMM slot %lu: Not populated\n", dimm_num);
#endif
+ }
}
- }
- if (dimm_found == FALSE) {
- printf("ERROR - No memory installed. Install a DDR-SDRAM DIMM.\n\n");
- hang();
- }
+ if (dimm_found == FALSE) {
+ printf("ERROR - No memory installed. Install a DDR-SDRAM DIMM.\n\n");
+ hang();
+ }
}
void check_mem_type(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned char dimm_type;
-
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- if (dimm_populated[dimm_num] == TRUE) {
- dimm_type = spd_read(iic0_dimm_addr[dimm_num], 2);
- switch (dimm_type) {
- case 7:
+ unsigned long dimm_num;
+ unsigned char dimm_type;
+
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ if (dimm_populated[dimm_num] == TRUE) {
+ dimm_type = spd_read(iic0_dimm_addr[dimm_num], 2);
+ switch (dimm_type) {
+ case 7:
#if 0
- printf("DIMM slot %lu: DDR SDRAM detected\n", dimm_num);
+ printf("DIMM slot %lu: DDR SDRAM detected\n", dimm_num);
#endif
- break;
- default:
- printf("ERROR: Unsupported DIMM detected in slot %lu.\n",
- dimm_num);
- printf("Only DDR SDRAM DIMMs are supported.\n");
- printf("Replace the DIMM module with a supported DIMM.\n\n");
- hang();
- break;
- }
+ break;
+ default:
+ printf("ERROR: Unsupported DIMM detected in slot %lu.\n",
+ dimm_num);
+ printf("Only DDR SDRAM DIMMs are supported.\n");
+ printf("Replace the DIMM module with a supported DIMM.\n\n");
+ hang();
+ break;
+ }
+ }
}
- }
}
@@ -924,894 +888,877 @@ void check_volt_type(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned long voltage_type;
-
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- if (dimm_populated[dimm_num] == TRUE) {
- voltage_type = spd_read(iic0_dimm_addr[dimm_num], 8);
- if (voltage_type != 0x04) {
- printf("ERROR: DIMM %lu with unsupported voltage level.\n",
- dimm_num);
- hang();
- }
- else {
+ unsigned long dimm_num;
+ unsigned long voltage_type;
+
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ if (dimm_populated[dimm_num] == TRUE) {
+ voltage_type = spd_read(iic0_dimm_addr[dimm_num], 8);
+ if (voltage_type != 0x04) {
+ printf("ERROR: DIMM %lu with unsupported voltage level.\n",
+ dimm_num);
+ hang();
+ } else {
#if 0
- printf("DIMM %lu voltage level supported.\n", dimm_num);
+ printf("DIMM %lu voltage level supported.\n", dimm_num);
#endif
- }
- break;
+ }
+ break;
+ }
}
- }
}
void program_cfg0(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned long cfg0;
- unsigned long ecc_enabled;
- unsigned char ecc;
- unsigned char attributes;
- unsigned long data_width;
- unsigned long dimm_32bit;
- unsigned long dimm_64bit;
-
- /*
- * get Memory Controller Options 0 data
- */
- mfsdram(mem_cfg0, cfg0);
-
- /*
- * clear bits
- */
- cfg0 &= ~(SDRAM_CFG0_DCEN | SDRAM_CFG0_MCHK_MASK |
- SDRAM_CFG0_RDEN | SDRAM_CFG0_PMUD |
- SDRAM_CFG0_DMWD_MASK |
- SDRAM_CFG0_UIOS_MASK | SDRAM_CFG0_PDP);
-
-
- /*
- * FIXME: assume the DDR SDRAMs in both banks are the same
- */
- ecc_enabled = TRUE;
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- if (dimm_populated[dimm_num] == TRUE) {
- ecc = spd_read(iic0_dimm_addr[dimm_num], 11);
- if (ecc != 0x02) {
- ecc_enabled = FALSE;
- }
-
- /*
- * program Registered DIMM Enable
- */
- attributes = spd_read(iic0_dimm_addr[dimm_num], 21);
- if ((attributes & 0x02) != 0x00) {
- cfg0 |= SDRAM_CFG0_RDEN;
- }
-
- /*
- * program DDR SDRAM Data Width
- */
- data_width =
- (unsigned long)spd_read(iic0_dimm_addr[dimm_num],6) +
- (((unsigned long)spd_read(iic0_dimm_addr[dimm_num],7)) << 8);
- if (data_width == 64 || data_width == 72) {
- dimm_64bit = TRUE;
- cfg0 |= SDRAM_CFG0_DMWD_64;
- }
- else if (data_width == 32 || data_width == 40) {
- dimm_32bit = TRUE;
- cfg0 |= SDRAM_CFG0_DMWD_32;
- }
- else {
- printf("WARNING: DIMM with datawidth of %lu bits.\n",
- data_width);
- printf("Only DIMMs with 32 or 64 bit datawidths supported.\n");
- hang();
- }
- break;
+ unsigned long dimm_num;
+ unsigned long cfg0;
+ unsigned long ecc_enabled;
+ unsigned char ecc;
+ unsigned char attributes;
+ unsigned long data_width;
+ unsigned long dimm_32bit;
+ unsigned long dimm_64bit;
+
+ /*
+ * get Memory Controller Options 0 data
+ */
+ mfsdram(mem_cfg0, cfg0);
+
+ /*
+ * clear bits
+ */
+ cfg0 &= ~(SDRAM_CFG0_DCEN | SDRAM_CFG0_MCHK_MASK |
+ SDRAM_CFG0_RDEN | SDRAM_CFG0_PMUD |
+ SDRAM_CFG0_DMWD_MASK |
+ SDRAM_CFG0_UIOS_MASK | SDRAM_CFG0_PDP);
+
+
+ /*
+ * FIXME: assume the DDR SDRAMs in both banks are the same
+ */
+ ecc_enabled = TRUE;
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ if (dimm_populated[dimm_num] == TRUE) {
+ ecc = spd_read(iic0_dimm_addr[dimm_num], 11);
+ if (ecc != 0x02) {
+ ecc_enabled = FALSE;
+ }
+
+ /*
+ * program Registered DIMM Enable
+ */
+ attributes = spd_read(iic0_dimm_addr[dimm_num], 21);
+ if ((attributes & 0x02) != 0x00) {
+ cfg0 |= SDRAM_CFG0_RDEN;
+ }
+
+ /*
+ * program DDR SDRAM Data Width
+ */
+ data_width =
+ (unsigned long)spd_read(iic0_dimm_addr[dimm_num],6) +
+ (((unsigned long)spd_read(iic0_dimm_addr[dimm_num],7)) << 8);
+ if (data_width == 64 || data_width == 72) {
+ dimm_64bit = TRUE;
+ cfg0 |= SDRAM_CFG0_DMWD_64;
+ } else if (data_width == 32 || data_width == 40) {
+ dimm_32bit = TRUE;
+ cfg0 |= SDRAM_CFG0_DMWD_32;
+ } else {
+ printf("WARNING: DIMM with datawidth of %lu bits.\n",
+ data_width);
+ printf("Only DIMMs with 32 or 64 bit datawidths supported.\n");
+ hang();
+ }
+ break;
+ }
}
- }
-
- /*
- * program Memory Data Error Checking
- */
- if (ecc_enabled == TRUE) {
- cfg0 |= SDRAM_CFG0_MCHK_GEN;
- }
- else {
- cfg0 |= SDRAM_CFG0_MCHK_NON;
- }
-
- /*
- * program Page Management Unit
- */
- cfg0 |= SDRAM_CFG0_PMUD;
-
- /*
- * program Memory Controller Options 0
- * Note: DCEN must be enabled after all DDR SDRAM controller
- * configuration registers get initialized.
- */
- mtsdram(mem_cfg0, cfg0);
+
+ /*
+ * program Memory Data Error Checking
+ */
+ if (ecc_enabled == TRUE) {
+ cfg0 |= SDRAM_CFG0_MCHK_GEN;
+ } else {
+ cfg0 |= SDRAM_CFG0_MCHK_NON;
+ }
+
+ /*
+ * program Page Management Unit
+ */
+ cfg0 |= SDRAM_CFG0_PMUD;
+
+ /*
+ * program Memory Controller Options 0
+ * Note: DCEN must be enabled after all DDR SDRAM controller
+ * configuration registers get initialized.
+ */
+ mtsdram(mem_cfg0, cfg0);
}
void program_cfg1(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long cfg1;
- mfsdram(mem_cfg1, cfg1);
-
- /*
- * Self-refresh exit, disable PM
- */
- cfg1 &= ~(SDRAM_CFG1_SRE | SDRAM_CFG1_PMEN);
-
- /*
- * program Memory Controller Options 1
- */
- mtsdram(mem_cfg1, cfg1);
+ unsigned long cfg1;
+ mfsdram(mem_cfg1, cfg1);
+
+ /*
+ * Self-refresh exit, disable PM
+ */
+ cfg1 &= ~(SDRAM_CFG1_SRE | SDRAM_CFG1_PMEN);
+
+ /*
+ * program Memory Controller Options 1
+ */
+ mtsdram(mem_cfg1, cfg1);
}
void program_rtr (unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned long bus_period_x_10;
- unsigned long refresh_rate = 0;
- unsigned char refresh_rate_type;
- unsigned long refresh_interval;
- unsigned long sdram_rtr;
- PPC440_SYS_INFO sys_info;
-
- /*
- * get the board info
- */
- get_sys_info(&sys_info);
- bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
-
-
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- if (dimm_populated[dimm_num] == TRUE) {
- refresh_rate_type = 0x7F & spd_read(iic0_dimm_addr[dimm_num], 12);
- switch (refresh_rate_type) {
- case 0x00:
- refresh_rate = 15625;
- break;
- case 0x01:
- refresh_rate = 15625/4;
- break;
- case 0x02:
- refresh_rate = 15625/2;
- break;
- case 0x03:
- refresh_rate = 15626*2;
- break;
- case 0x04:
- refresh_rate = 15625*4;
- break;
- case 0x05:
- refresh_rate = 15625*8;
- break;
- default:
- printf("ERROR: DIMM %lu, unsupported refresh rate/type.\n",
- dimm_num);
- printf("Replace the DIMM module with a supported DIMM.\n");
- break;
- }
+ unsigned long dimm_num;
+ unsigned long bus_period_x_10;
+ unsigned long refresh_rate = 0;
+ unsigned char refresh_rate_type;
+ unsigned long refresh_interval;
+ unsigned long sdram_rtr;
+ PPC440_SYS_INFO sys_info;
+
+ /*
+ * get the board info
+ */
+ get_sys_info(&sys_info);
+ bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
+
- break;
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ if (dimm_populated[dimm_num] == TRUE) {
+ refresh_rate_type = 0x7F & spd_read(iic0_dimm_addr[dimm_num], 12);
+ switch (refresh_rate_type) {
+ case 0x00:
+ refresh_rate = 15625;
+ break;
+ case 0x01:
+ refresh_rate = 15625/4;
+ break;
+ case 0x02:
+ refresh_rate = 15625/2;
+ break;
+ case 0x03:
+ refresh_rate = 15626*2;
+ break;
+ case 0x04:
+ refresh_rate = 15625*4;
+ break;
+ case 0x05:
+ refresh_rate = 15625*8;
+ break;
+ default:
+ printf("ERROR: DIMM %lu, unsupported refresh rate/type.\n",
+ dimm_num);
+ printf("Replace the DIMM module with a supported DIMM.\n");
+ break;
+ }
+
+ break;
+ }
}
- }
- refresh_interval = refresh_rate * 10 / bus_period_x_10;
- sdram_rtr = (refresh_interval & 0x3ff8) << 16;
+ refresh_interval = refresh_rate * 10 / bus_period_x_10;
+ sdram_rtr = (refresh_interval & 0x3ff8) << 16;
- /*
- * program Refresh Timer Register (SDRAM0_RTR)
- */
- mtsdram(mem_rtr, sdram_rtr);
+ /*
+ * program Refresh Timer Register (SDRAM0_RTR)
+ */
+ mtsdram(mem_rtr, sdram_rtr);
}
void program_tr0 (unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned long tr0;
- unsigned char wcsbc;
- unsigned char t_rp_ns;
- unsigned char t_rcd_ns;
- unsigned char t_ras_ns;
- unsigned long t_rp_clk;
- unsigned long t_ras_rcd_clk;
- unsigned long t_rcd_clk;
- unsigned long t_rfc_clk;
- unsigned long plb_check;
- unsigned char cas_bit;
- unsigned long cas_index;
- unsigned char cas_2_0_available;
- unsigned char cas_2_5_available;
- unsigned char cas_3_0_available;
- unsigned long cycle_time_ns_x_10[3];
- unsigned long tcyc_3_0_ns_x_10;
- unsigned long tcyc_2_5_ns_x_10;
- unsigned long tcyc_2_0_ns_x_10;
- unsigned long tcyc_reg;
- unsigned long bus_period_x_10;
- PPC440_SYS_INFO sys_info;
- unsigned long residue;
-
- /*
- * get the board info
- */
- get_sys_info(&sys_info);
- bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
-
- /*
- * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits
- */
- mfsdram(mem_tr0, tr0);
- tr0 &= ~(SDRAM_TR0_SDWR_MASK | SDRAM_TR0_SDWD_MASK |
- SDRAM_TR0_SDCL_MASK | SDRAM_TR0_SDPA_MASK |
- SDRAM_TR0_SDCP_MASK | SDRAM_TR0_SDLD_MASK |
- SDRAM_TR0_SDRA_MASK | SDRAM_TR0_SDRD_MASK);
-
- /*
- * initialization
- */
- wcsbc = 0;
- t_rp_ns = 0;
- t_rcd_ns = 0;
- t_ras_ns = 0;
- cas_2_0_available = TRUE;
- cas_2_5_available = TRUE;
- cas_3_0_available = TRUE;
- tcyc_2_0_ns_x_10 = 0;
- tcyc_2_5_ns_x_10 = 0;
- tcyc_3_0_ns_x_10 = 0;
-
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- if (dimm_populated[dimm_num] == TRUE) {
- wcsbc = spd_read(iic0_dimm_addr[dimm_num], 15);
- t_rp_ns = spd_read(iic0_dimm_addr[dimm_num], 27) >> 2;
- t_rcd_ns = spd_read(iic0_dimm_addr[dimm_num], 29) >> 2;
- t_ras_ns = spd_read(iic0_dimm_addr[dimm_num], 30);
- cas_bit = spd_read(iic0_dimm_addr[dimm_num], 18);
-
- for (cas_index = 0; cas_index < 3; cas_index++) {
- switch (cas_index) {
- case 0:
- tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 9);
- break;
- case 1:
- tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 23);
- break;
- default:
- tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 25);
- break;
- }
+ unsigned long dimm_num;
+ unsigned long tr0;
+ unsigned char wcsbc;
+ unsigned char t_rp_ns;
+ unsigned char t_rcd_ns;
+ unsigned char t_ras_ns;
+ unsigned long t_rp_clk;
+ unsigned long t_ras_rcd_clk;
+ unsigned long t_rcd_clk;
+ unsigned long t_rfc_clk;
+ unsigned long plb_check;
+ unsigned char cas_bit;
+ unsigned long cas_index;
+ unsigned char cas_2_0_available;
+ unsigned char cas_2_5_available;
+ unsigned char cas_3_0_available;
+ unsigned long cycle_time_ns_x_10[3];
+ unsigned long tcyc_3_0_ns_x_10;
+ unsigned long tcyc_2_5_ns_x_10;
+ unsigned long tcyc_2_0_ns_x_10;
+ unsigned long tcyc_reg;
+ unsigned long bus_period_x_10;
+ PPC440_SYS_INFO sys_info;
+ unsigned long residue;
- if ((tcyc_reg & 0x0F) >= 10) {
- printf("ERROR: Tcyc incorrect for DIMM in slot %lu\n",
- dimm_num);
- hang();
- }
+ /*
+ * get the board info
+ */
+ get_sys_info(&sys_info);
+ bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
- cycle_time_ns_x_10[cas_index] =
- (((tcyc_reg & 0xF0) >> 4) * 10) + (tcyc_reg & 0x0F);
- }
-
- cas_index = 0;
-
- if ((cas_bit & 0x80) != 0) {
- cas_index += 3;
- }
- else if ((cas_bit & 0x40) != 0) {
- cas_index += 2;
- }
- else if ((cas_bit & 0x20) != 0) {
- cas_index += 1;
- }
-
- if (((cas_bit & 0x10) != 0) && (cas_index < 3)) {
- tcyc_3_0_ns_x_10 = cycle_time_ns_x_10[cas_index];
- cas_index++;
- }
- else {
- if (cas_index != 0) {
- cas_index++;
- }
- cas_3_0_available = FALSE;
- }
-
- if (((cas_bit & 0x08) != 0) || (cas_index < 3)) {
- tcyc_2_5_ns_x_10 = cycle_time_ns_x_10[cas_index];
- cas_index++;
- }
- else {
- if (cas_index != 0) {
- cas_index++;
- }
- cas_2_5_available = FALSE;
- }
-
- if (((cas_bit & 0x04) != 0) || (cas_index < 3)) {
- tcyc_2_0_ns_x_10 = cycle_time_ns_x_10[cas_index];
- cas_index++;
- }
- else {
- if (cas_index != 0) {
- cas_index++;
+ /*
+ * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits
+ */
+ mfsdram(mem_tr0, tr0);
+ tr0 &= ~(SDRAM_TR0_SDWR_MASK | SDRAM_TR0_SDWD_MASK |
+ SDRAM_TR0_SDCL_MASK | SDRAM_TR0_SDPA_MASK |
+ SDRAM_TR0_SDCP_MASK | SDRAM_TR0_SDLD_MASK |
+ SDRAM_TR0_SDRA_MASK | SDRAM_TR0_SDRD_MASK);
+
+ /*
+ * initialization
+ */
+ wcsbc = 0;
+ t_rp_ns = 0;
+ t_rcd_ns = 0;
+ t_ras_ns = 0;
+ cas_2_0_available = TRUE;
+ cas_2_5_available = TRUE;
+ cas_3_0_available = TRUE;
+ tcyc_2_0_ns_x_10 = 0;
+ tcyc_2_5_ns_x_10 = 0;
+ tcyc_3_0_ns_x_10 = 0;
+
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ if (dimm_populated[dimm_num] == TRUE) {
+ wcsbc = spd_read(iic0_dimm_addr[dimm_num], 15);
+ t_rp_ns = spd_read(iic0_dimm_addr[dimm_num], 27) >> 2;
+ t_rcd_ns = spd_read(iic0_dimm_addr[dimm_num], 29) >> 2;
+ t_ras_ns = spd_read(iic0_dimm_addr[dimm_num], 30);
+ cas_bit = spd_read(iic0_dimm_addr[dimm_num], 18);
+
+ for (cas_index = 0; cas_index < 3; cas_index++) {
+ switch (cas_index) {
+ case 0:
+ tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 9);
+ break;
+ case 1:
+ tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 23);
+ break;
+ default:
+ tcyc_reg = spd_read(iic0_dimm_addr[dimm_num], 25);
+ break;
+ }
+
+ if ((tcyc_reg & 0x0F) >= 10) {
+ printf("ERROR: Tcyc incorrect for DIMM in slot %lu\n",
+ dimm_num);
+ hang();
+ }
+
+ cycle_time_ns_x_10[cas_index] =
+ (((tcyc_reg & 0xF0) >> 4) * 10) + (tcyc_reg & 0x0F);
+ }
+
+ cas_index = 0;
+
+ if ((cas_bit & 0x80) != 0) {
+ cas_index += 3;
+ } else if ((cas_bit & 0x40) != 0) {
+ cas_index += 2;
+ } else if ((cas_bit & 0x20) != 0) {
+ cas_index += 1;
+ }
+
+ if (((cas_bit & 0x10) != 0) && (cas_index < 3)) {
+ tcyc_3_0_ns_x_10 = cycle_time_ns_x_10[cas_index];
+ cas_index++;
+ } else {
+ if (cas_index != 0) {
+ cas_index++;
+ }
+ cas_3_0_available = FALSE;
+ }
+
+ if (((cas_bit & 0x08) != 0) || (cas_index < 3)) {
+ tcyc_2_5_ns_x_10 = cycle_time_ns_x_10[cas_index];
+ cas_index++;
+ } else {
+ if (cas_index != 0) {
+ cas_index++;
+ }
+ cas_2_5_available = FALSE;
+ }
+
+ if (((cas_bit & 0x04) != 0) || (cas_index < 3)) {
+ tcyc_2_0_ns_x_10 = cycle_time_ns_x_10[cas_index];
+ cas_index++;
+ } else {
+ if (cas_index != 0) {
+ cas_index++;
+ }
+ cas_2_0_available = FALSE;
+ }
+
+ break;
}
- cas_2_0_available = FALSE;
- }
+ }
+
+ /*
+ * Program SD_WR and SD_WCSBC fields
+ */
+ tr0 |= SDRAM_TR0_SDWR_2_CLK; /* Write Recovery: 2 CLK */
+ switch (wcsbc) {
+ case 0:
+ tr0 |= SDRAM_TR0_SDWD_0_CLK;
+ break;
+ default:
+ tr0 |= SDRAM_TR0_SDWD_1_CLK;
+ break;
+ }
+
+ /*
+ * Program SD_CASL field
+ */
+ if ((cas_2_0_available == TRUE) &&
+ (bus_period_x_10 >= tcyc_2_0_ns_x_10)) {
+ tr0 |= SDRAM_TR0_SDCL_2_0_CLK;
+ } else if ((cas_2_5_available == TRUE) &&
+ (bus_period_x_10 >= tcyc_2_5_ns_x_10)) {
+ tr0 |= SDRAM_TR0_SDCL_2_5_CLK;
+ } else if ((cas_3_0_available == TRUE) &&
+ (bus_period_x_10 >= tcyc_3_0_ns_x_10)) {
+ tr0 |= SDRAM_TR0_SDCL_3_0_CLK;
+ } else {
+ printf("ERROR: No supported CAS latency with the installed DIMMs.\n");
+ printf("Only CAS latencies of 2.0, 2.5, and 3.0 are supported.\n");
+ printf("Make sure the PLB speed is within the supported range.\n");
+ hang();
+ }
+
+ /*
+ * Calculate Trp in clock cycles and round up if necessary
+ * Program SD_PTA field
+ */
+ t_rp_clk = sys_info.freqPLB * t_rp_ns / ONE_BILLION;
+ plb_check = ONE_BILLION * t_rp_clk / t_rp_ns;
+ if (sys_info.freqPLB != plb_check) {
+ t_rp_clk++;
+ }
+ switch ((unsigned long)t_rp_clk) {
+ case 0:
+ case 1:
+ case 2:
+ tr0 |= SDRAM_TR0_SDPA_2_CLK;
+ break;
+ case 3:
+ tr0 |= SDRAM_TR0_SDPA_3_CLK;
+ break;
+ default:
+ tr0 |= SDRAM_TR0_SDPA_4_CLK;
+ break;
+ }
+
+ /*
+ * Program SD_CTP field
+ */
+ t_ras_rcd_clk = sys_info.freqPLB * (t_ras_ns - t_rcd_ns) / ONE_BILLION;
+ plb_check = ONE_BILLION * t_ras_rcd_clk / (t_ras_ns - t_rcd_ns);
+ if (sys_info.freqPLB != plb_check) {
+ t_ras_rcd_clk++;
+ }
+ switch (t_ras_rcd_clk) {
+ case 0:
+ case 1:
+ case 2:
+ tr0 |= SDRAM_TR0_SDCP_2_CLK;
+ break;
+ case 3:
+ tr0 |= SDRAM_TR0_SDCP_3_CLK;
+ break;
+ case 4:
+ tr0 |= SDRAM_TR0_SDCP_4_CLK;
+ break;
+ default:
+ tr0 |= SDRAM_TR0_SDCP_5_CLK;
+ break;
+ }
+
+ /*
+ * Program SD_LDF field
+ */
+ tr0 |= SDRAM_TR0_SDLD_2_CLK;
+
+ /*
+ * Program SD_RFTA field
+ * FIXME tRFC hardcoded as 75 nanoseconds
+ */
+ t_rfc_clk = sys_info.freqPLB / (ONE_BILLION / 75);
+ residue = sys_info.freqPLB % (ONE_BILLION / 75);
+ if (residue >= (ONE_BILLION / 150)) {
+ t_rfc_clk++;
+ }
+ switch (t_rfc_clk) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ tr0 |= SDRAM_TR0_SDRA_6_CLK;
+ break;
+ case 7:
+ tr0 |= SDRAM_TR0_SDRA_7_CLK;
+ break;
+ case 8:
+ tr0 |= SDRAM_TR0_SDRA_8_CLK;
+ break;
+ case 9:
+ tr0 |= SDRAM_TR0_SDRA_9_CLK;
+ break;
+ case 10:
+ tr0 |= SDRAM_TR0_SDRA_10_CLK;
+ break;
+ case 11:
+ tr0 |= SDRAM_TR0_SDRA_11_CLK;
+ break;
+ case 12:
+ tr0 |= SDRAM_TR0_SDRA_12_CLK;
+ break;
+ default:
+ tr0 |= SDRAM_TR0_SDRA_13_CLK;
+ break;
+ }
- break;
+ /*
+ * Program SD_RCD field
+ */
+ t_rcd_clk = sys_info.freqPLB * t_rcd_ns / ONE_BILLION;
+ plb_check = ONE_BILLION * t_rcd_clk / t_rcd_ns;
+ if (sys_info.freqPLB != plb_check) {
+ t_rcd_clk++;
+ }
+ switch (t_rcd_clk) {
+ case 0:
+ case 1:
+ case 2:
+ tr0 |= SDRAM_TR0_SDRD_2_CLK;
+ break;
+ case 3:
+ tr0 |= SDRAM_TR0_SDRD_3_CLK;
+ break;
+ default:
+ tr0 |= SDRAM_TR0_SDRD_4_CLK;
+ break;
}
- }
-
- /*
- * Program SD_WR and SD_WCSBC fields
- */
- tr0 |= SDRAM_TR0_SDWR_2_CLK; /* Write Recovery: 2 CLK */
- switch (wcsbc) {
- case 0:
- tr0 |= SDRAM_TR0_SDWD_0_CLK;
- break;
- default:
- tr0 |= SDRAM_TR0_SDWD_1_CLK;
- break;
- }
-
- /*
- * Program SD_CASL field
- */
- if ((cas_2_0_available == TRUE) &&
- (bus_period_x_10 >= tcyc_2_0_ns_x_10)) {
- tr0 |= SDRAM_TR0_SDCL_2_0_CLK;
- }
- else if((cas_2_5_available == TRUE) &&
- (bus_period_x_10 >= tcyc_2_5_ns_x_10)) {
- tr0 |= SDRAM_TR0_SDCL_2_5_CLK;
- }
- else if((cas_3_0_available == TRUE) &&
- (bus_period_x_10 >= tcyc_3_0_ns_x_10)) {
- tr0 |= SDRAM_TR0_SDCL_3_0_CLK;
- }
- else {
- printf("ERROR: No supported CAS latency with the installed DIMMs.\n");
- printf("Only CAS latencies of 2.0, 2.5, and 3.0 are supported.\n");
- printf("Make sure the PLB speed is within the supported range.\n");
- hang();
- }
-
- /*
- * Calculate Trp in clock cycles and round up if necessary
- * Program SD_PTA field
- */
- t_rp_clk = sys_info.freqPLB * t_rp_ns / ONE_BILLION;
- plb_check = ONE_BILLION * t_rp_clk / t_rp_ns;
- if (sys_info.freqPLB != plb_check) {
- t_rp_clk++;
- }
- switch ((unsigned long)t_rp_clk) {
- case 0:
- case 1:
- case 2:
- tr0 |= SDRAM_TR0_SDPA_2_CLK;
- break;
- case 3:
- tr0 |= SDRAM_TR0_SDPA_3_CLK;
- break;
- default:
- tr0 |= SDRAM_TR0_SDPA_4_CLK;
- break;
- }
-
- /*
- * Program SD_CTP field
- */
- t_ras_rcd_clk = sys_info.freqPLB * (t_ras_ns - t_rcd_ns) / ONE_BILLION;
- plb_check = ONE_BILLION * t_ras_rcd_clk / (t_ras_ns - t_rcd_ns);
- if (sys_info.freqPLB != plb_check) {
- t_ras_rcd_clk++;
- }
- switch (t_ras_rcd_clk) {
- case 0:
- case 1:
- case 2:
- tr0 |= SDRAM_TR0_SDCP_2_CLK;
- break;
- case 3:
- tr0 |= SDRAM_TR0_SDCP_3_CLK;
- break;
- case 4:
- tr0 |= SDRAM_TR0_SDCP_4_CLK;
- break;
- default:
- tr0 |= SDRAM_TR0_SDCP_5_CLK;
- break;
- }
-
- /*
- * Program SD_LDF field
- */
- tr0 |= SDRAM_TR0_SDLD_2_CLK;
-
- /*
- * Program SD_RFTA field
- * FIXME tRFC hardcoded as 75 nanoseconds
- */
- t_rfc_clk = sys_info.freqPLB / (ONE_BILLION / 75);
- residue = sys_info.freqPLB % (ONE_BILLION / 75);
- if (residue >= (ONE_BILLION / 150)) {
- t_rfc_clk++;
- }
- switch (t_rfc_clk) {
- case 0:
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- case 6:
- tr0 |= SDRAM_TR0_SDRA_6_CLK;
- break;
- case 7:
- tr0 |= SDRAM_TR0_SDRA_7_CLK;
- break;
- case 8:
- tr0 |= SDRAM_TR0_SDRA_8_CLK;
- break;
- case 9:
- tr0 |= SDRAM_TR0_SDRA_9_CLK;
- break;
- case 10:
- tr0 |= SDRAM_TR0_SDRA_10_CLK;
- break;
- case 11:
- tr0 |= SDRAM_TR0_SDRA_11_CLK;
- break;
- case 12:
- tr0 |= SDRAM_TR0_SDRA_12_CLK;
- break;
- default:
- tr0 |= SDRAM_TR0_SDRA_13_CLK;
- break;
- }
-
- /*
- * Program SD_RCD field
- */
- t_rcd_clk = sys_info.freqPLB * t_rcd_ns / ONE_BILLION;
- plb_check = ONE_BILLION * t_rcd_clk / t_rcd_ns;
- if (sys_info.freqPLB != plb_check) {
- t_rcd_clk++;
- }
- switch (t_rcd_clk) {
- case 0:
- case 1:
- case 2:
- tr0 |= SDRAM_TR0_SDRD_2_CLK;
- break;
- case 3:
- tr0 |= SDRAM_TR0_SDRD_3_CLK;
- break;
- default:
- tr0 |= SDRAM_TR0_SDRD_4_CLK;
- break;
- }
#if 0
- printf("tr0: %x\n", tr0);
+ printf("tr0: %x\n", tr0);
#endif
- mtsdram(mem_tr0, tr0);
+ mtsdram(mem_tr0, tr0);
}
void program_tr1 (void)
{
- unsigned long tr0;
- unsigned long tr1;
- unsigned long cfg0;
- unsigned long ecc_temp;
- unsigned long dlycal;
- unsigned long dly_val;
- unsigned long i, j, k;
- unsigned long bxcr_num;
- unsigned long max_pass_length;
- unsigned long current_pass_length;
- unsigned long current_fail_length;
- unsigned long current_start;
- unsigned long rdclt;
- unsigned long rdclt_offset;
- long max_start;
- long max_end;
- long rdclt_average;
- unsigned char window_found;
- unsigned char fail_found;
- unsigned char pass_found;
- unsigned long * membase;
- PPC440_SYS_INFO sys_info;
-
- /*
- * get the board info
- */
- get_sys_info(&sys_info);
-
- /*
- * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits
- */
- mfsdram(mem_tr1, tr1);
- tr1 &= ~(SDRAM_TR1_RDSS_MASK | SDRAM_TR1_RDSL_MASK |
- SDRAM_TR1_RDCD_MASK | SDRAM_TR1_RDCT_MASK);
-
- mfsdram(mem_tr0, tr0);
- if (((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) &&
- (sys_info.freqPLB > 100000000)) {
- tr1 |= SDRAM_TR1_RDSS_TR2;
- tr1 |= SDRAM_TR1_RDSL_STAGE3;
- tr1 |= SDRAM_TR1_RDCD_RCD_1_2;
- }
- else {
- tr1 |= SDRAM_TR1_RDSS_TR1;
- tr1 |= SDRAM_TR1_RDSL_STAGE2;
- tr1 |= SDRAM_TR1_RDCD_RCD_0_0;
- }
-
- /*
- * save CFG0 ECC setting to a temporary variable and turn ECC off
- */
- mfsdram(mem_cfg0, cfg0);
- ecc_temp = cfg0 & SDRAM_CFG0_MCHK_MASK;
- mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_NON);
-
- /*
- * get the delay line calibration register value
- */
- mfsdram(mem_dlycal, dlycal);
- dly_val = SDRAM_DLYCAL_DLCV_DECODE(dlycal) << 2;
-
- max_pass_length = 0;
- max_start = 0;
- max_end = 0;
- current_pass_length = 0;
- current_fail_length = 0;
- current_start = 0;
- rdclt_offset = 0;
- window_found = FALSE;
- fail_found = FALSE;
- pass_found = FALSE;
+ unsigned long tr0;
+ unsigned long tr1;
+ unsigned long cfg0;
+ unsigned long ecc_temp;
+ unsigned long dlycal;
+ unsigned long dly_val;
+ unsigned long i, j, k;
+ unsigned long bxcr_num;
+ unsigned long max_pass_length;
+ unsigned long current_pass_length;
+ unsigned long current_fail_length;
+ unsigned long current_start;
+ unsigned long rdclt;
+ unsigned long rdclt_offset;
+ long max_start;
+ long max_end;
+ long rdclt_average;
+ unsigned char window_found;
+ unsigned char fail_found;
+ unsigned char pass_found;
+ unsigned long * membase;
+ PPC440_SYS_INFO sys_info;
+
+ /*
+ * get the board info
+ */
+ get_sys_info(&sys_info);
+
+ /*
+ * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits
+ */
+ mfsdram(mem_tr1, tr1);
+ tr1 &= ~(SDRAM_TR1_RDSS_MASK | SDRAM_TR1_RDSL_MASK |
+ SDRAM_TR1_RDCD_MASK | SDRAM_TR1_RDCT_MASK);
+
+ mfsdram(mem_tr0, tr0);
+ if (((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) &&
+ (sys_info.freqPLB > 100000000)) {
+ tr1 |= SDRAM_TR1_RDSS_TR2;
+ tr1 |= SDRAM_TR1_RDSL_STAGE3;
+ tr1 |= SDRAM_TR1_RDCD_RCD_1_2;
+ } else {
+ tr1 |= SDRAM_TR1_RDSS_TR1;
+ tr1 |= SDRAM_TR1_RDSL_STAGE2;
+ tr1 |= SDRAM_TR1_RDCD_RCD_0_0;
+ }
+
+ /*
+ * save CFG0 ECC setting to a temporary variable and turn ECC off
+ */
+ mfsdram(mem_cfg0, cfg0);
+ ecc_temp = cfg0 & SDRAM_CFG0_MCHK_MASK;
+ mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_NON);
+
+ /*
+ * get the delay line calibration register value
+ */
+ mfsdram(mem_dlycal, dlycal);
+ dly_val = SDRAM_DLYCAL_DLCV_DECODE(dlycal) << 2;
+
+ max_pass_length = 0;
+ max_start = 0;
+ max_end = 0;
+ current_pass_length = 0;
+ current_fail_length = 0;
+ current_start = 0;
+ rdclt_offset = 0;
+ window_found = FALSE;
+ fail_found = FALSE;
+ pass_found = FALSE;
#ifdef DEBUG
- printf("Starting memory test ");
+ printf("Starting memory test ");
#endif
- for (k = 0; k < NUMHALFCYCLES; k++) {
- for (rdclt = 0; rdclt < dly_val; rdclt++) {
- /*
- * Set the timing reg for the test.
- */
- mtsdram(mem_tr1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt)));
-
- for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
- mtdcr(memcfga, mem_b0cr + (bxcr_num<<2));
- if ((mfdcr(memcfgd) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
- /* Bank is enabled */
- membase = (unsigned long*)
- (mfdcr(memcfgd) & SDRAM_BXCR_SDBA_MASK);
-
- /*
- * Run the short memory test
- */
- for (i = 0; i < NUMMEMTESTS; i++) {
- for (j = 0; j < NUMMEMWORDS; j++) {
- membase[j] = test[i][j];
- ppcDcbf((unsigned long)&(membase[j]));
+ for (k = 0; k < NUMHALFCYCLES; k++) {
+ for (rdclt = 0; rdclt < dly_val; rdclt++) {
+ /*
+ * Set the timing reg for the test.
+ */
+ mtsdram(mem_tr1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt)));
+
+ for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
+ mtdcr(memcfga, mem_b0cr + (bxcr_num<<2));
+ if ((mfdcr(memcfgd) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
+ /* Bank is enabled */
+ membase = (unsigned long*)
+ (mfdcr(memcfgd) & SDRAM_BXCR_SDBA_MASK);
+
+ /*
+ * Run the short memory test
+ */
+ for (i = 0; i < NUMMEMTESTS; i++) {
+ for (j = 0; j < NUMMEMWORDS; j++) {
+ membase[j] = test[i][j];
+ ppcDcbf((unsigned long)&(membase[j]));
+ }
+
+ for (j = 0; j < NUMMEMWORDS; j++) {
+ if (membase[j] != test[i][j]) {
+ ppcDcbf((unsigned long)&(membase[j]));
+ break;
+ }
+ ppcDcbf((unsigned long)&(membase[j]));
+ }
+
+ if (j < NUMMEMWORDS) {
+ break;
+ }
+ }
+
+ /*
+ * see if the rdclt value passed
+ */
+ if (i < NUMMEMTESTS) {
+ break;
+ }
+ }
}
- for (j = 0; j < NUMMEMWORDS; j++) {
- if (membase[j] != test[i][j]) {
- ppcDcbf((unsigned long)&(membase[j]));
- break;
- }
- ppcDcbf((unsigned long)&(membase[j]));
+ if (bxcr_num == MAXBXCR) {
+ if (fail_found == TRUE) {
+ pass_found = TRUE;
+ if (current_pass_length == 0) {
+ current_start = rdclt_offset + rdclt;
+ }
+
+ current_fail_length = 0;
+ current_pass_length++;
+
+ if (current_pass_length > max_pass_length) {
+ max_pass_length = current_pass_length;
+ max_start = current_start;
+ max_end = rdclt_offset + rdclt;
+ }
+ }
+ } else {
+ current_pass_length = 0;
+ current_fail_length++;
+
+ if (current_fail_length >= (dly_val>>2)) {
+ if (fail_found == FALSE) {
+ fail_found = TRUE;
+ } else if (pass_found == TRUE) {
+ window_found = TRUE;
+ break;
+ }
+ }
}
-
- if (j < NUMMEMWORDS) {
- break;
- }
- }
-
- /*
- * see if the rdclt value passed
- */
- if (i < NUMMEMTESTS) {
- break;
- }
}
- }
-
- if (bxcr_num == MAXBXCR) {
- if (fail_found == TRUE) {
- pass_found = TRUE;
- if (current_pass_length == 0) {
- current_start = rdclt_offset + rdclt;
- }
-
- current_fail_length = 0;
- current_pass_length++;
-
- if (current_pass_length > max_pass_length) {
- max_pass_length = current_pass_length;
- max_start = current_start;
- max_end = rdclt_offset + rdclt;
- }
- }
- }
- else {
- current_pass_length = 0;
- current_fail_length++;
-
- if (current_fail_length >= (dly_val>>2)) {
- if (fail_found == FALSE) {
- fail_found = TRUE;
- }
- else if (pass_found == TRUE) {
- window_found = TRUE;
+#ifdef DEBUG
+ printf(".");
+#endif
+ if (window_found == TRUE) {
break;
- }
}
- }
+
+ tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK;
+ rdclt_offset += dly_val;
}
#ifdef DEBUG
- printf(".");
+ printf("\n");
#endif
- if (window_found == TRUE) {
- break;
+
+ /*
+ * make sure we find the window
+ */
+ if (window_found == FALSE) {
+ printf("ERROR: Cannot determine a common read delay.\n");
+ hang();
}
- tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK;
- rdclt_offset += dly_val;
- }
-#ifdef DEBUG
- printf("\n");
-#endif
+ /*
+ * restore the orignal ECC setting
+ */
+ mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | ecc_temp);
+
+ /*
+ * set the SDRAM TR1 RDCD value
+ */
+ tr1 &= ~SDRAM_TR1_RDCD_MASK;
+ if ((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) {
+ tr1 |= SDRAM_TR1_RDCD_RCD_1_2;
+ } else {
+ tr1 |= SDRAM_TR1_RDCD_RCD_0_0;
+ }
- /*
- * make sure we find the window
- */
- if (window_found == FALSE) {
- printf("ERROR: Cannot determine a common read delay.\n");
- hang();
- }
-
- /*
- * restore the orignal ECC setting
- */
- mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | ecc_temp);
-
- /*
- * set the SDRAM TR1 RDCD value
- */
- tr1 &= ~SDRAM_TR1_RDCD_MASK;
- if ((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) {
- tr1 |= SDRAM_TR1_RDCD_RCD_1_2;
- }
- else {
- tr1 |= SDRAM_TR1_RDCD_RCD_0_0;
- }
-
- /*
- * set the SDRAM TR1 RDCLT value
- */
- tr1 &= ~SDRAM_TR1_RDCT_MASK;
- while (max_end >= (dly_val<<1)) {
- max_end -= (dly_val<<1);
- max_start -= (dly_val<<1);
- }
-
- rdclt_average = ((max_start + max_end) >> 1);
- if (rdclt_average >= 0x60)
- while(1);
-
- if (rdclt_average < 0) {
- rdclt_average = 0;
- }
-
- if (rdclt_average >= dly_val) {
- rdclt_average -= dly_val;
- tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK;
- }
- tr1 |= SDRAM_TR1_RDCT_ENCODE(rdclt_average);
+ /*
+ * set the SDRAM TR1 RDCLT value
+ */
+ tr1 &= ~SDRAM_TR1_RDCT_MASK;
+ while (max_end >= (dly_val << 1)) {
+ max_end -= (dly_val << 1);
+ max_start -= (dly_val << 1);
+ }
+
+ rdclt_average = ((max_start + max_end) >> 1);
+ if (rdclt_average >= 0x60)
+ while (1)
+ ;
+
+ if (rdclt_average < 0) {
+ rdclt_average = 0;
+ }
+
+ if (rdclt_average >= dly_val) {
+ rdclt_average -= dly_val;
+ tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK;
+ }
+ tr1 |= SDRAM_TR1_RDCT_ENCODE(rdclt_average);
#if 0
- printf("tr1: %x\n", tr1);
+ printf("tr1: %x\n", tr1);
#endif
- /*
- * program SDRAM Timing Register 1 TR1
- */
- mtsdram(mem_tr1, tr1);
+ /*
+ * program SDRAM Timing Register 1 TR1
+ */
+ mtsdram(mem_tr1, tr1);
}
unsigned long program_bxcr(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
unsigned long num_dimm_banks)
{
- unsigned long dimm_num;
- unsigned long bxcr_num;
- unsigned long bank_base_addr;
- unsigned long bank_size_bytes;
- unsigned long cr;
- unsigned long i;
- unsigned long temp;
- unsigned char num_row_addr;
- unsigned char num_col_addr;
- unsigned char num_banks;
- unsigned char bank_size_id;
-
-
- /*
- * Set the BxCR regs. First, wipe out the bank config registers.
- */
- for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
- mtdcr(memcfga, mem_b0cr + (bxcr_num << 2));
- mtdcr(memcfgd, 0x00000000);
- }
-
- /*
- * reset the bank_base address
- */
- bank_base_addr = CFG_SDRAM_BASE;
-
- for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
- if (dimm_populated[dimm_num] == TRUE) {
- num_row_addr = spd_read(iic0_dimm_addr[dimm_num], 3);
- num_col_addr = spd_read(iic0_dimm_addr[dimm_num], 4);
- num_banks = spd_read(iic0_dimm_addr[dimm_num], 5);
- bank_size_id = spd_read(iic0_dimm_addr[dimm_num], 31);
-
- /*
- * Set the SDRAM0_BxCR regs
- */
- cr = 0;
- bank_size_bytes = 4 * 1024 * 1024 * bank_size_id;
- switch (bank_size_id) {
- case 0x02:
- cr |= SDRAM_BXCR_SDSZ_8;
- break;
- case 0x04:
- cr |= SDRAM_BXCR_SDSZ_16;
- break;
- case 0x08:
- cr |= SDRAM_BXCR_SDSZ_32;
- break;
- case 0x10:
- cr |= SDRAM_BXCR_SDSZ_64;
- break;
- case 0x20:
- cr |= SDRAM_BXCR_SDSZ_128;
- break;
- case 0x40:
- cr |= SDRAM_BXCR_SDSZ_256;
- break;
- case 0x80:
- cr |= SDRAM_BXCR_SDSZ_512;
- break;
- default:
- printf("DDR-SDRAM: DIMM %lu BxCR configuration.\n",
- dimm_num);
- printf("ERROR: Unsupported value for the banksize: %d.\n",
- bank_size_id);
- printf("Replace the DIMM module with a supported DIMM.\n\n");
- hang();
- }
+ unsigned long dimm_num;
+ unsigned long bxcr_num;
+ unsigned long bank_base_addr;
+ unsigned long bank_size_bytes;
+ unsigned long cr;
+ unsigned long i;
+ unsigned long temp;
+ unsigned char num_row_addr;
+ unsigned char num_col_addr;
+ unsigned char num_banks;
+ unsigned char bank_size_id;
- switch (num_col_addr) {
- case 0x08:
- cr |= SDRAM_BXCR_SDAM_1;
- break;
- case 0x09:
- cr |= SDRAM_BXCR_SDAM_2;
- break;
- case 0x0A:
- cr |= SDRAM_BXCR_SDAM_3;
- break;
- case 0x0B:
- cr |= SDRAM_BXCR_SDAM_4;
- break;
- default:
- printf("DDR-SDRAM: DIMM %lu BxCR configuration.\n",
- dimm_num);
- printf("ERROR: Unsupported value for number of "
- "column addresses: %d.\n", num_col_addr);
- printf("Replace the DIMM module with a supported DIMM.\n\n");
- hang();
- }
-
- /*
- * enable the bank
- */
- cr |= SDRAM_BXCR_SDBE;
-
- /*------------------------------------------------------------------
- | This next section is hardware dependent and must be programmed
- | to match the hardware.
- +-----------------------------------------------------------------*/
- if (dimm_num == 0) {
- for (i = 0; i < num_banks; i++) {
- mtdcr(memcfga, mem_b0cr + (i << 2));
- temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
- SDRAM_BXCR_SDSZ_MASK |
- SDRAM_BXCR_SDAM_MASK |
- SDRAM_BXCR_SDBE);
- cr |= temp;
- cr |= bank_base_addr & SDRAM_BXCR_SDBA_MASK;
- mtdcr(memcfgd, cr);
- bank_base_addr += bank_size_bytes;
- }
- }
- else {
- for (i = 0; i < num_banks; i++) {
- mtdcr(memcfga, mem_b2cr + (i << 2));
- temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
- SDRAM_BXCR_SDSZ_MASK |
- SDRAM_BXCR_SDAM_MASK |
- SDRAM_BXCR_SDBE);
- cr |= temp;
- cr |= bank_base_addr & SDRAM_BXCR_SDBA_MASK;
- mtdcr(memcfgd, cr);
- bank_base_addr += bank_size_bytes;
+
+ /*
+ * Set the BxCR regs. First, wipe out the bank config registers.
+ */
+ for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
+ mtdcr(memcfga, mem_b0cr + (bxcr_num << 2));
+ mtdcr(memcfgd, 0x00000000);
+ }
+
+ /*
+ * reset the bank_base address
+ */
+ bank_base_addr = CFG_SDRAM_BASE;
+
+ for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
+ if (dimm_populated[dimm_num] == TRUE) {
+ num_row_addr = spd_read(iic0_dimm_addr[dimm_num], 3);
+ num_col_addr = spd_read(iic0_dimm_addr[dimm_num], 4);
+ num_banks = spd_read(iic0_dimm_addr[dimm_num], 5);
+ bank_size_id = spd_read(iic0_dimm_addr[dimm_num], 31);
+
+ /*
+ * Set the SDRAM0_BxCR regs
+ */
+ cr = 0;
+ bank_size_bytes = 4 * 1024 * 1024 * bank_size_id;
+ switch (bank_size_id) {
+ case 0x02:
+ cr |= SDRAM_BXCR_SDSZ_8;
+ break;
+ case 0x04:
+ cr |= SDRAM_BXCR_SDSZ_16;
+ break;
+ case 0x08:
+ cr |= SDRAM_BXCR_SDSZ_32;
+ break;
+ case 0x10:
+ cr |= SDRAM_BXCR_SDSZ_64;
+ break;
+ case 0x20:
+ cr |= SDRAM_BXCR_SDSZ_128;
+ break;
+ case 0x40:
+ cr |= SDRAM_BXCR_SDSZ_256;
+ break;
+ case 0x80:
+ cr |= SDRAM_BXCR_SDSZ_512;
+ break;
+ default:
+ printf("DDR-SDRAM: DIMM %lu BxCR configuration.\n",
+ dimm_num);
+ printf("ERROR: Unsupported value for the banksize: %d.\n",
+ bank_size_id);
+ printf("Replace the DIMM module with a supported DIMM.\n\n");
+ hang();
+ }
+
+ switch (num_col_addr) {
+ case 0x08:
+ cr |= SDRAM_BXCR_SDAM_1;
+ break;
+ case 0x09:
+ cr |= SDRAM_BXCR_SDAM_2;
+ break;
+ case 0x0A:
+ cr |= SDRAM_BXCR_SDAM_3;
+ break;
+ case 0x0B:
+ cr |= SDRAM_BXCR_SDAM_4;
+ break;
+ default:
+ printf("DDR-SDRAM: DIMM %lu BxCR configuration.\n",
+ dimm_num);
+ printf("ERROR: Unsupported value for number of "
+ "column addresses: %d.\n", num_col_addr);
+ printf("Replace the DIMM module with a supported DIMM.\n\n");
+ hang();
+ }
+
+ /*
+ * enable the bank
+ */
+ cr |= SDRAM_BXCR_SDBE;
+
+ /*------------------------------------------------------------------
+ | This next section is hardware dependent and must be programmed
+ | to match the hardware.
+ +-----------------------------------------------------------------*/
+ if (dimm_num == 0) {
+ for (i = 0; i < num_banks; i++) {
+ mtdcr(memcfga, mem_b0cr + (i << 2));
+ temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
+ SDRAM_BXCR_SDSZ_MASK |
+ SDRAM_BXCR_SDAM_MASK |
+ SDRAM_BXCR_SDBE);
+ cr |= temp;
+ cr |= bank_base_addr & SDRAM_BXCR_SDBA_MASK;
+ mtdcr(memcfgd, cr);
+ bank_base_addr += bank_size_bytes;
+ }
+ } else {
+ for (i = 0; i < num_banks; i++) {
+ mtdcr(memcfga, mem_b2cr + (i << 2));
+ temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
+ SDRAM_BXCR_SDSZ_MASK |
+ SDRAM_BXCR_SDAM_MASK |
+ SDRAM_BXCR_SDBE);
+ cr |= temp;
+ cr |= bank_base_addr & SDRAM_BXCR_SDBA_MASK;
+ mtdcr(memcfgd, cr);
+ bank_base_addr += bank_size_bytes;
+ }
+ }
}
- }
}
- }
- return(bank_base_addr);
+ return(bank_base_addr);
}
void program_ecc (unsigned long num_bytes)
{
- unsigned long bank_base_addr;
- unsigned long current_address;
- unsigned long end_address;
- unsigned long address_increment;
- unsigned long cfg0;
-
- /*
- * get Memory Controller Options 0 data
- */
- mfsdram(mem_cfg0, cfg0);
-
- /*
- * reset the bank_base address
- */
- bank_base_addr = CFG_SDRAM_BASE;
-
- if ((cfg0 & SDRAM_CFG0_MCHK_MASK) != SDRAM_CFG0_MCHK_NON) {
- mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) |
- SDRAM_CFG0_MCHK_GEN);
-
- if ((cfg0 & SDRAM_CFG0_DMWD_MASK) == SDRAM_CFG0_DMWD_32) {
- address_increment = 4;
- }
- else {
- address_increment = 8;
- }
+ unsigned long bank_base_addr;
+ unsigned long current_address;
+ unsigned long end_address;
+ unsigned long address_increment;
+ unsigned long cfg0;
- current_address = (unsigned long)(bank_base_addr);
- end_address = (unsigned long)(bank_base_addr) + num_bytes;
+ /*
+ * get Memory Controller Options 0 data
+ */
+ mfsdram(mem_cfg0, cfg0);
- while (current_address < end_address) {
- *((unsigned long*)current_address) = 0x00000000;
- current_address += address_increment;
- }
+ /*
+ * reset the bank_base address
+ */
+ bank_base_addr = CFG_SDRAM_BASE;
+
+ if ((cfg0 & SDRAM_CFG0_MCHK_MASK) != SDRAM_CFG0_MCHK_NON) {
+ mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) |
+ SDRAM_CFG0_MCHK_GEN);
+
+ if ((cfg0 & SDRAM_CFG0_DMWD_MASK) == SDRAM_CFG0_DMWD_32) {
+ address_increment = 4;
+ } else {
+ address_increment = 8;
+ }
+
+ current_address = (unsigned long)(bank_base_addr);
+ end_address = (unsigned long)(bank_base_addr) + num_bytes;
- mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) |
- SDRAM_CFG0_MCHK_CHK);
- }
+ while (current_address < end_address) {
+ *((unsigned long*)current_address) = 0x00000000;
+ current_address += address_increment;
+ }
+
+ mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) |
+ SDRAM_CFG0_MCHK_CHK);
+ }
}
#endif /* CONFIG_440 */
diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c
index 0d6d88a..7a4af75 100644
--- a/cpu/ppc4xx/speed.c
+++ b/cpu/ppc4xx/speed.c
@@ -194,7 +194,96 @@ ulong get_PCI_freq (void)
#elif defined(CONFIG_440)
-#if !defined(CONFIG_440_GX)
+
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+void get_sys_info (sys_info_t *sysInfo)
+{
+ unsigned long temp;
+ unsigned long reg;
+ unsigned long lfdiv;
+ unsigned long m;
+ unsigned long prbdv0;
+ /*
+ WARNING: ASSUMES the following:
+ ENG=1
+ PRADV0=1
+ PRBDV0=1
+ */
+
+ /* Decode CPR0_PLLD0 for divisors */
+ mfclk(clk_plld, reg);
+ temp = (reg & PLLD_FWDVA_MASK) >> 16;
+ sysInfo->pllFwdDivA = temp ? temp : 16;
+ temp = (reg & PLLD_FWDVB_MASK) >> 8;
+ sysInfo->pllFwdDivB = temp ? temp: 8 ;
+ temp = (reg & PLLD_FBDV_MASK) >> 24;
+ sysInfo->pllFbkDiv = temp ? temp : 32;
+ lfdiv = reg & PLLD_LFBDV_MASK;
+
+ mfclk(clk_opbd, reg);
+ temp = (reg & OPBDDV_MASK) >> 24;
+ sysInfo->pllOpbDiv = temp ? temp : 4;
+
+ mfclk(clk_perd, reg);
+ temp = (reg & PERDV_MASK) >> 24;
+ sysInfo->pllExtBusDiv = temp ? temp : 8;
+
+ mfclk(clk_primbd, reg);
+ temp = (reg & PRBDV_MASK) >> 24;
+ prbdv0 = temp ? temp : 8;
+
+ mfclk(clk_spcid, reg);
+ temp = (reg & SPCID_MASK) >> 24;
+ sysInfo->pllPciDiv = temp ? temp : 4;
+
+ /* Calculate 'M' based on feedback source */
+ mfsdr(sdr_sdstp0, reg);
+ temp = (reg & PLLSYS0_SEL_MASK) >> 27;
+ if (temp == 0) { /* PLL output */
+ /* Figure which pll to use */
+ mfclk(clk_pllc, reg);
+ temp = (reg & PLLC_SRC_MASK) >> 29;
+ if (!temp) /* PLLOUTA */
+ m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivA;
+ else /* PLLOUTB */
+ m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivB;
+ }
+ else if (temp == 1) /* CPU output */
+ m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivA;
+ else /* PerClk */
+ m = sysInfo->pllExtBusDiv * sysInfo->pllOpbDiv * sysInfo->pllFwdDivB;
+
+ /* Now calculate the individual clocks */
+ sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1);
+ sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA;
+ sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB/prbdv0;
+ sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
+ sysInfo->freqEPB = sysInfo->freqPLB/sysInfo->pllExtBusDiv;
+ sysInfo->freqPCI = sysInfo->freqPLB/sysInfo->pllPciDiv;
+
+ /* Figure which timer source to use */
+ if (mfspr(ccr1) & 0x0080) { /* External Clock, assume same as SYS_CLK */
+ temp = sysInfo->freqProcessor / 2; /* Max extern clock speed */
+ if (CONFIG_SYS_CLK_FREQ > temp)
+ sysInfo->freqTmrClk = temp;
+ else
+ sysInfo->freqTmrClk = CONFIG_SYS_CLK_FREQ;
+ }
+ else /* Internal clock */
+ sysInfo->freqTmrClk = sysInfo->freqProcessor;
+}
+/********************************************
+ * get_PCI_freq
+ * return PCI bus freq in Hz
+ *********************************************/
+ulong get_PCI_freq (void)
+{
+ sys_info_t sys_info;
+ get_sys_info (&sys_info);
+ return sys_info.freqPCI;
+}
+
+#elif !defined(CONFIG_440_GX)
void get_sys_info (sys_info_t * sysInfo)
{
unsigned long strp0;
@@ -220,8 +309,8 @@ void get_sys_info (sys_info_t * sysInfo)
sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1);
sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA;
sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB;
- if( get_pvr() == PVR_440GP_RB ) /* Rev B divs an extra 2 -- geez! */
- sysInfo->freqPLB >>= 1;
+ if( get_pvr() == PVR_440GP_RB ) /* Rev B divs an extra 2 -- geez! */
+ sysInfo->freqPLB >>= 1;
sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
sysInfo->freqEPB = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 3473baa..3a8ff2b 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -344,7 +344,7 @@ _start:
lis r1,0x0002 /* set CE bit (Critical Exceptions) */
ori r1,r1,0x1000 /* set ME bit (Machine Exceptions) */
mtmsr r1 /* change MSR */
-#else
+#elif !defined(CONFIG_440_EP) && !defined(CONFIG_440_GR)
bl __440gx_msr_set
b __440gx_msr_continue
@@ -377,6 +377,21 @@ __440gx_msr_continue:
/* Setup the internal SRAM */
/*----------------------------------------------------------------*/
li r0,0
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ /* Clear Dcache to use as RAM */
+ lis r3,CFG_INIT_RAM_ADDR@h
+ li r4,CFG_INIT_RAM_END@l
+ rlwinm. r5,r4,0,27,31
+ rlwinm r5,r4,27,5,31
+ beq ..d_ran
+ addi r5,r5,0x0001
+..d_ran:
+ mtctr r5
+..d_ag:
+ dcbz r0,r3
+ addi r3,r3,32
+ bdnz ..d_ag
+#else
#if defined (CONFIG_440_GX)
mtdcr l2_cache_cfg,r0 /* Ensure L2 Cache is off */
#endif
@@ -408,6 +423,7 @@ __440gx_msr_continue:
ori r1,r1,0x0380 /* 8k rw */
mtdcr isram0_sb0cr,r1
#endif
+#endif
/*----------------------------------------------------------------*/
/* Setup the stack in internal SRAM */
@@ -957,7 +973,7 @@ invalidate_icache:
invalidate_dcache:
addi r6,0,0x0000 /* clear GPR 6 */
/* Do loop for # of dcache congruence classes. */
-#if defined(CONFIG_440_GX)
+#if defined(CONFIG_440_GX) || defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
lis r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS for large sized cache */
ori r7, r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l
#else
@@ -983,7 +999,7 @@ flush_dcache:
mtdccr r10
/* do loop for # of congruence classes. */
-#if defined(CONFIG_440_GX)
+#if defined(CONFIG_440_GX) || defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
lis r10,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS: for large cache sizes */
ori r10,r10,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l
lis r11,(CFG_DCACHE_SIZE / 2)@ha /* D cache set size - 2 way sets */
@@ -1210,6 +1226,15 @@ ppcSync:
*/
.globl relocate_code
relocate_code:
+#if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
+ dccci 0,0 /* Invalidate data cache, now no longer our stack */
+ sync
+ addi r1,r0,0x0000 /* Tlb entry #0 */
+ tlbre r0,r1,0x0002 /* Read contents */
+ ori r0,r0,0x0c00 /* Or in the inhibit, write through bit */
+ tlbwe r0,r1,0x0002 /* Save it out */
+ isync
+#endif
mr r1, r3 /* Set new stack pointer */
mr r9, r4 /* Save copy of Init Data pointer */
mr r10, r5 /* Save copy of Destination Address */
@@ -1433,7 +1458,7 @@ trap_reloc:
#ifdef CONFIG_405EP
ppc405ep_init:
-#ifdef CONFIG_BUBINGA405EP
+#ifdef CONFIG_BUBINGA
/*
* Initialize EBC chip selects 1 & 4 and GPIO pins (for alternate
* function) to support FPGA and NVRAM accesses below.
@@ -1513,7 +1538,7 @@ ppc405ep_init:
#endif
addi r3,0,CPC0_PCI_HOST_CFG_EN
-#ifdef CONFIG_BUBINGA405EP
+#ifdef CONFIG_BUBINGA
/*
!-----------------------------------------------------------------------
! Check FPGA for PCI internal/external arbitration
@@ -1548,7 +1573,7 @@ ppc405ep_init:
/* and CPU has been reset */
/* so skip to next section */
-#ifdef CONFIG_BUBINGA405EP
+#ifdef CONFIG_BUBINGA
/*
!-----------------------------------------------------------------------
! Read NVRAM to get value to write in PLLMR.
@@ -1583,7 +1608,7 @@ ppc405ep_init:
cmpi cr0,0,r5,1 /* See if PLL is locked */
beq pll_write
..no_pllset:
-#endif /* CONFIG_BUBINGA405EP */
+#endif /* CONFIG_BUBINGA */
addis r3,0,PLLMR0_DEFAULT@h /* PLLMR0 default value */
ori r3,r3,PLLMR0_DEFAULT@l /* */
diff --git a/cpu/ppc4xx/usb_ohci.c b/cpu/ppc4xx/usb_ohci.c
new file mode 100644
index 0000000..6176709
--- /dev/null
+++ b/cpu/ppc4xx/usb_ohci.c
@@ -0,0 +1,1648 @@
+/*
+ * URB OHCI HCD (Host Controller Driver) for USB on the PPC 440.
+ *
+ * (C) Copyright 2003-2004
+ * Gary Jennejohn, DENX Software Engineering <gj@denx.de>
+ *
+ * (C) Copyright 2004
+ * Pierre Aubert, Staubli Faverges <p.aubert@staubli.com>
+ *
+ * Note: Much of this code has been derived from Linux 2.4
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2002 David Brownell
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+/*
+ * IMPORTANT NOTES
+ * 1 - this driver is intended for use with USB Mass Storage Devices
+ * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes!
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_USB_OHCI
+
+#include <malloc.h>
+#include <usb.h>
+#include "usb_ohci.h"
+#include "usbdev.h"
+
+#define OHCI_USE_NPS /* force NoPowerSwitching mode */
+#undef OHCI_VERBOSE_DEBUG /* not always helpful */
+#undef DEBUG
+#undef SHOW_INFO
+#undef OHCI_FILL_TRACE
+
+/* For initializing controller (mask in an HCFS mode too) */
+#define OHCI_CONTROL_INIT \
+ (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
+
+#define readl(a) (*((vu_long *)(a)))
+#define writel(a, b) (*((vu_long *)(b)) = ((vu_long)a))
+
+#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
+
+#ifdef DEBUG
+#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
+#else
+#define dbg(format, arg...) do {} while(0)
+#endif /* DEBUG */
+#define err(format, arg...) printf("ERROR: " format "\n", ## arg)
+#ifdef SHOW_INFO
+#define info(format, arg...) printf("INFO: " format "\n", ## arg)
+#else
+#define info(format, arg...) do {} while(0)
+#endif
+
+#define m16_swap(x) swap_16(x)
+#define m32_swap(x) swap_32(x)
+
+#if 1
+#define ohci_cpu_to_le16(x) (x)
+#define ohci_cpu_to_le32(x) (x)
+#else
+#define ohci_cpu_to_le16(x) swap_16(x)
+#define ohci_cpu_to_le32(x) swap_32(x)
+#endif
+
+/* global ohci_t */
+static ohci_t gohci;
+/* this must be aligned to a 256 byte boundary */
+struct ohci_hcca ghcca[1];
+/* a pointer to the aligned storage */
+struct ohci_hcca *phcca;
+/* this allocates EDs for all possible endpoints */
+struct ohci_device ohci_dev;
+/* urb_priv */
+urb_priv_t urb_priv;
+/* RHSC flag */
+int got_rhsc;
+/* device which was disconnected */
+struct usb_device *devgone;
+
+/*-------------------------------------------------------------------------*/
+
+/* AMD-756 (D2 rev) reports corrupt register contents in some cases.
+ * The erratum (#4) description is incorrect. AMD's workaround waits
+ * till some bits (mostly reserved) are clear; ok for all revs.
+ */
+#define OHCI_QUIRK_AMD756 0xabcd
+#define read_roothub(hc, register, mask) ({ \
+ u32 temp = readl (&hc->regs->roothub.register); \
+ if (hc->flags & OHCI_QUIRK_AMD756) \
+ while (temp & mask) \
+ temp = readl (&hc->regs->roothub.register); \
+ temp; })
+
+static u32 roothub_a(struct ohci *hc)
+{
+ return read_roothub(hc, a, 0xfc0fe000);
+}
+static inline u32 roothub_b(struct ohci *hc)
+{
+ return readl(&hc->regs->roothub.b);
+}
+static inline u32 roothub_status(struct ohci *hc)
+{
+ return readl(&hc->regs->roothub.status);
+}
+static u32 roothub_portstatus(struct ohci *hc, int i)
+{
+ return read_roothub(hc, portstatus[i], 0xffe0fce0);
+}
+
+/* forward declaration */
+static int hc_interrupt(void);
+static void
+td_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, struct devrequest *setup, urb_priv_t * urb,
+ int interval);
+
+/*-------------------------------------------------------------------------*
+ * URB support functions
+ *-------------------------------------------------------------------------*/
+
+/* free HCD-private data associated with this URB */
+
+static void urb_free_priv(urb_priv_t * urb)
+{
+ int i;
+ int last;
+ struct td *td;
+
+ last = urb->length - 1;
+ if (last >= 0) {
+ for (i = 0; i <= last; i++) {
+ td = urb->td[i];
+ if (td) {
+ td->usb_dev = NULL;
+ urb->td[i] = NULL;
+ }
+ }
+ }
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef DEBUG
+static int sohci_get_current_frame_number(struct usb_device *dev);
+
+/* debug| print the main components of an URB
+ * small: 0) header + data packets 1) just header */
+
+static void pkt_print(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, struct devrequest *setup, char *str,
+ int small)
+{
+ urb_priv_t *purb = &urb_priv;
+
+ dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx",
+ str,
+ sohci_get_current_frame_number(dev),
+ usb_pipedevice(pipe),
+ usb_pipeendpoint(pipe),
+ usb_pipeout(pipe) ? 'O' : 'I',
+ usb_pipetype(pipe) < 2 ? (usb_pipeint(pipe) ? "INTR" : "ISOC") :
+ (usb_pipecontrol(pipe) ? "CTRL" : "BULK"),
+ purb->actual_length, transfer_len, dev->status);
+#ifdef OHCI_VERBOSE_DEBUG
+ if (!small) {
+ int i, len;
+
+ if (usb_pipecontrol(pipe)) {
+ printf(__FILE__ ": cmd(8):");
+ for (i = 0; i < 8; i++)
+ printf(" %02x", ((__u8 *) setup)[i]);
+ printf("\n");
+ }
+ if (transfer_len > 0 && buffer) {
+ printf(__FILE__ ": data(%d/%d):",
+ purb->actual_length, transfer_len);
+ len = usb_pipeout(pipe) ?
+ transfer_len : purb->actual_length;
+ for (i = 0; i < 16 && i < len; i++)
+ printf(" %02x", ((__u8 *) buffer)[i]);
+ printf("%s\n", i < len ? "..." : "");
+ }
+ }
+#endif
+}
+
+/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/
+void ep_print_int_eds(ohci_t * ohci, char *str)
+{
+ int i, j;
+ __u32 *ed_p;
+ for (i = 0; i < 32; i++) {
+ j = 5;
+ ed_p = &(ohci->hcca->int_table[i]);
+ if (*ed_p == 0)
+ continue;
+ printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i);
+ while (*ed_p != 0 && j--) {
+ ed_t *ed = (ed_t *) ohci_cpu_to_le32(ed_p);
+ printf(" ed: %4x;", ed->hwINFO);
+ ed_p = &ed->hwNextED;
+ }
+ printf("\n");
+ }
+}
+
+static void ohci_dump_intr_mask(char *label, __u32 mask)
+{
+ dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
+ label,
+ mask,
+ (mask & OHCI_INTR_MIE) ? " MIE" : "",
+ (mask & OHCI_INTR_OC) ? " OC" : "",
+ (mask & OHCI_INTR_RHSC) ? " RHSC" : "",
+ (mask & OHCI_INTR_FNO) ? " FNO" : "",
+ (mask & OHCI_INTR_UE) ? " UE" : "",
+ (mask & OHCI_INTR_RD) ? " RD" : "",
+ (mask & OHCI_INTR_SF) ? " SF" : "",
+ (mask & OHCI_INTR_WDH) ? " WDH" : "",
+ (mask & OHCI_INTR_SO) ? " SO" : "");
+}
+
+static void maybe_print_eds(char *label, __u32 value)
+{
+ ed_t *edp = (ed_t *) value;
+
+ if (value) {
+ dbg("%s %08x", label, value);
+ dbg("%08x", edp->hwINFO);
+ dbg("%08x", edp->hwTailP);
+ dbg("%08x", edp->hwHeadP);
+ dbg("%08x", edp->hwNextED);
+ }
+}
+
+static char *hcfs2string(int state)
+{
+ switch (state) {
+ case OHCI_USB_RESET:
+ return "reset";
+ case OHCI_USB_RESUME:
+ return "resume";
+ case OHCI_USB_OPER:
+ return "operational";
+ case OHCI_USB_SUSPEND:
+ return "suspend";
+ }
+ return "?";
+}
+
+/* dump control and status registers */
+static void ohci_dump_status(ohci_t * controller)
+{
+ struct ohci_regs *regs = controller->regs;
+ __u32 temp;
+
+ temp = readl(&regs->revision) & 0xff;
+ if (temp != 0x10)
+ dbg("spec %d.%d", (temp >> 4), (temp & 0x0f));
+
+ temp = readl(&regs->control);
+ dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
+ (temp & OHCI_CTRL_RWE) ? " RWE" : "",
+ (temp & OHCI_CTRL_RWC) ? " RWC" : "",
+ (temp & OHCI_CTRL_IR) ? " IR" : "",
+ hcfs2string(temp & OHCI_CTRL_HCFS),
+ (temp & OHCI_CTRL_BLE) ? " BLE" : "",
+ (temp & OHCI_CTRL_CLE) ? " CLE" : "",
+ (temp & OHCI_CTRL_IE) ? " IE" : "",
+ (temp & OHCI_CTRL_PLE) ? " PLE" : "", temp & OHCI_CTRL_CBSR);
+
+ temp = readl(&regs->cmdstatus);
+ dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
+ (temp & OHCI_SOC) >> 16,
+ (temp & OHCI_OCR) ? " OCR" : "",
+ (temp & OHCI_BLF) ? " BLF" : "",
+ (temp & OHCI_CLF) ? " CLF" : "", (temp & OHCI_HCR) ? " HCR" : "");
+
+ ohci_dump_intr_mask("intrstatus", readl(&regs->intrstatus));
+ ohci_dump_intr_mask("intrenable", readl(&regs->intrenable));
+
+ maybe_print_eds("ed_periodcurrent", readl(&regs->ed_periodcurrent));
+
+ maybe_print_eds("ed_controlhead", readl(&regs->ed_controlhead));
+ maybe_print_eds("ed_controlcurrent", readl(&regs->ed_controlcurrent));
+
+ maybe_print_eds("ed_bulkhead", readl(&regs->ed_bulkhead));
+ maybe_print_eds("ed_bulkcurrent", readl(&regs->ed_bulkcurrent));
+
+ maybe_print_eds("donehead", readl(&regs->donehead));
+}
+
+static void ohci_dump_roothub(ohci_t * controller, int verbose)
+{
+ __u32 temp, ndp, i;
+
+ temp = roothub_a(controller);
+ ndp = (temp & RH_A_NDP);
+
+ if (verbose) {
+ dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
+ ((temp & RH_A_POTPGT) >> 24) & 0xff,
+ (temp & RH_A_NOCP) ? " NOCP" : "",
+ (temp & RH_A_OCPM) ? " OCPM" : "",
+ (temp & RH_A_DT) ? " DT" : "",
+ (temp & RH_A_NPS) ? " NPS" : "",
+ (temp & RH_A_PSM) ? " PSM" : "", ndp);
+ temp = roothub_b(controller);
+ dbg("roothub.b: %08x PPCM=%04x DR=%04x",
+ temp, (temp & RH_B_PPCM) >> 16, (temp & RH_B_DR)
+ );
+ temp = roothub_status(controller);
+ dbg("roothub.status: %08x%s%s%s%s%s%s",
+ temp,
+ (temp & RH_HS_CRWE) ? " CRWE" : "",
+ (temp & RH_HS_OCIC) ? " OCIC" : "",
+ (temp & RH_HS_LPSC) ? " LPSC" : "",
+ (temp & RH_HS_DRWE) ? " DRWE" : "",
+ (temp & RH_HS_OCI) ? " OCI" : "",
+ (temp & RH_HS_LPS) ? " LPS" : "");
+ }
+
+ for (i = 0; i < ndp; i++) {
+ temp = roothub_portstatus(controller, i);
+ dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
+ i,
+ temp,
+ (temp & RH_PS_PRSC) ? " PRSC" : "",
+ (temp & RH_PS_OCIC) ? " OCIC" : "",
+ (temp & RH_PS_PSSC) ? " PSSC" : "",
+ (temp & RH_PS_PESC) ? " PESC" : "",
+ (temp & RH_PS_CSC) ? " CSC" : "",
+ (temp & RH_PS_LSDA) ? " LSDA" : "",
+ (temp & RH_PS_PPS) ? " PPS" : "",
+ (temp & RH_PS_PRS) ? " PRS" : "",
+ (temp & RH_PS_POCI) ? " POCI" : "",
+ (temp & RH_PS_PSS) ? " PSS" : "",
+ (temp & RH_PS_PES) ? " PES" : "",
+ (temp & RH_PS_CCS) ? " CCS" : "");
+ }
+}
+
+static void ohci_dump(ohci_t * controller, int verbose)
+{
+ dbg("OHCI controller usb-%s state", controller->slot_name);
+
+ /* dumps some of the state we know about */
+ ohci_dump_status(controller);
+ if (verbose)
+ ep_print_int_eds(controller, "hcca");
+ dbg("hcca frame #%04x", controller->hcca->frame_no);
+ ohci_dump_roothub(controller, 1);
+}
+
+#endif /* DEBUG */
+
+/*-------------------------------------------------------------------------*
+ * Interface functions (URB)
+ *-------------------------------------------------------------------------*/
+
+/* get a transfer request */
+
+int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, struct devrequest *setup, int interval)
+{
+ ohci_t *ohci;
+ ed_t *ed;
+ urb_priv_t *purb_priv;
+ int i, size = 0;
+
+ ohci = &gohci;
+
+ /* when controller's hung, permit only roothub cleanup attempts
+ * such as powering down ports */
+ if (ohci->disabled) {
+ err("sohci_submit_job: EPIPE");
+ return -1;
+ }
+
+ /* every endpoint has a ed, locate and fill it */
+ if (!(ed = ep_add_ed(dev, pipe))) {
+ err("sohci_submit_job: ENOMEM");
+ return -1;
+ }
+
+ /* for the private part of the URB we need the number of TDs (size) */
+ switch (usb_pipetype(pipe)) {
+ case PIPE_BULK: /* one TD for every 4096 Byte */
+ size = (transfer_len - 1) / 4096 + 1;
+ break;
+ case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
+ size = (transfer_len == 0) ? 2 : (transfer_len - 1) / 4096 + 3;
+ break;
+ }
+
+ if (size >= (N_URB_TD - 1)) {
+ err("need %d TDs, only have %d", size, N_URB_TD);
+ return -1;
+ }
+ purb_priv = &urb_priv;
+ purb_priv->pipe = pipe;
+
+ /* fill the private part of the URB */
+ purb_priv->length = size;
+ purb_priv->ed = ed;
+ purb_priv->actual_length = 0;
+
+ /* allocate the TDs */
+ /* note that td[0] was allocated in ep_add_ed */
+ for (i = 0; i < size; i++) {
+ purb_priv->td[i] = td_alloc(dev);
+ if (!purb_priv->td[i]) {
+ purb_priv->length = i;
+ urb_free_priv(purb_priv);
+ err("sohci_submit_job: ENOMEM");
+ return -1;
+ }
+ }
+
+ if (ed->state == ED_NEW || (ed->state & ED_DEL)) {
+ urb_free_priv(purb_priv);
+ err("sohci_submit_job: EINVAL");
+ return -1;
+ }
+
+ /* link the ed into a chain if is not already */
+ if (ed->state != ED_OPER)
+ ep_link(ohci, ed);
+
+ /* fill the TDs and link it to the ed */
+ td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv,
+ interval);
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef DEBUG
+/* tell us the current USB frame number */
+
+static int sohci_get_current_frame_number(struct usb_device *usb_dev)
+{
+ ohci_t *ohci = &gohci;
+
+ return ohci_cpu_to_le16(ohci->hcca->frame_no);
+}
+#endif
+
+/*-------------------------------------------------------------------------*
+ * ED handling functions
+ *-------------------------------------------------------------------------*/
+
+/* link an ed into one of the HC chains */
+
+static int ep_link(ohci_t * ohci, ed_t * edi)
+{
+ volatile ed_t *ed = edi;
+
+ ed->state = ED_OPER;
+
+ switch (ed->type) {
+ case PIPE_CONTROL:
+ ed->hwNextED = 0;
+ if (ohci->ed_controltail == NULL) {
+ writel(ed, &ohci->regs->ed_controlhead);
+ } else {
+ ohci->ed_controltail->hwNextED =
+ ohci_cpu_to_le32((unsigned long)ed);
+ }
+ ed->ed_prev = ohci->ed_controltail;
+ if (!ohci->ed_controltail && !ohci->ed_rm_list[0] &&
+ !ohci->ed_rm_list[1] && !ohci->sleeping) {
+ ohci->hc_control |= OHCI_CTRL_CLE;
+ writel(ohci->hc_control, &ohci->regs->control);
+ }
+ ohci->ed_controltail = edi;
+ break;
+
+ case PIPE_BULK:
+ ed->hwNextED = 0;
+ if (ohci->ed_bulktail == NULL) {
+ writel(ed, &ohci->regs->ed_bulkhead);
+ } else {
+ ohci->ed_bulktail->hwNextED =
+ ohci_cpu_to_le32((unsigned long)ed);
+ }
+ ed->ed_prev = ohci->ed_bulktail;
+ if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] &&
+ !ohci->ed_rm_list[1] && !ohci->sleeping) {
+ ohci->hc_control |= OHCI_CTRL_BLE;
+ writel(ohci->hc_control, &ohci->regs->control);
+ }
+ ohci->ed_bulktail = edi;
+ break;
+ }
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* unlink an ed from one of the HC chains.
+ * just the link to the ed is unlinked.
+ * the link from the ed still points to another operational ed or 0
+ * so the HC can eventually finish the processing of the unlinked ed */
+
+static int ep_unlink(ohci_t * ohci, ed_t * edi)
+{
+ volatile ed_t *ed = edi;
+
+ ed->hwINFO |= ohci_cpu_to_le32(OHCI_ED_SKIP);
+
+ switch (ed->type) {
+ case PIPE_CONTROL:
+ if (ed->ed_prev == NULL) {
+ if (!ed->hwNextED) {
+ ohci->hc_control &= ~OHCI_CTRL_CLE;
+ writel(ohci->hc_control, &ohci->regs->control);
+ }
+ writel(ohci_cpu_to_le32(*((__u32 *) & ed->hwNextED)),
+ &ohci->regs->ed_controlhead);
+ } else {
+ ed->ed_prev->hwNextED = ed->hwNextED;
+ }
+ if (ohci->ed_controltail == ed) {
+ ohci->ed_controltail = ed->ed_prev;
+ } else {
+ ((ed_t *)
+ ohci_cpu_to_le32(*((__u32 *) & ed->hwNextED)))->
+ ed_prev = ed->ed_prev;
+ }
+ break;
+
+ case PIPE_BULK:
+ if (ed->ed_prev == NULL) {
+ if (!ed->hwNextED) {
+ ohci->hc_control &= ~OHCI_CTRL_BLE;
+ writel(ohci->hc_control, &ohci->regs->control);
+ }
+ writel(ohci_cpu_to_le32(*((__u32 *) & ed->hwNextED)),
+ &ohci->regs->ed_bulkhead);
+ } else {
+ ed->ed_prev->hwNextED = ed->hwNextED;
+ }
+ if (ohci->ed_bulktail == ed) {
+ ohci->ed_bulktail = ed->ed_prev;
+ } else {
+ ((ed_t *)
+ ohci_cpu_to_le32(*((__u32 *) & ed->hwNextED)))->
+ ed_prev = ed->ed_prev;
+ }
+ break;
+ }
+ ed->state = ED_UNLINK;
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* add/reinit an endpoint; this should be done once at the usb_set_configuration command,
+ * but the USB stack is a little bit stateless so we do it at every transaction
+ * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK
+ * in all other cases the state is left unchanged
+ * the ed info fields are setted anyway even though most of them should not change */
+
+static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe)
+{
+ td_t *td;
+ ed_t *ed_ret;
+ volatile ed_t *ed;
+
+ ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint(pipe) << 1) |
+ (usb_pipecontrol(pipe) ? 0 :
+ usb_pipeout(pipe))];
+
+ if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) {
+ err("ep_add_ed: pending delete");
+ /* pending delete request */
+ return NULL;
+ }
+
+ if (ed->state == ED_NEW) {
+ ed->hwINFO = ohci_cpu_to_le32(OHCI_ED_SKIP); /* skip ed */
+ /* dummy td; end of td list for ed */
+ td = td_alloc(usb_dev);
+ ed->hwTailP = ohci_cpu_to_le32((unsigned long)td);
+ ed->hwHeadP = ed->hwTailP;
+ ed->state = ED_UNLINK;
+ ed->type = usb_pipetype(pipe);
+ ohci_dev.ed_cnt++;
+ }
+
+ ed->hwINFO = ohci_cpu_to_le32(usb_pipedevice(pipe)
+ | usb_pipeendpoint(pipe) << 7
+ | (usb_pipeisoc(pipe) ? 0x8000 : 0)
+ | (usb_pipecontrol(pipe) ? 0
+ : (usb_pipeout(pipe) ? 0x800 : 0x1000))
+ | usb_pipeslow(pipe) << 13 |
+ usb_maxpacket(usb_dev, pipe) << 16);
+
+ return ed_ret;
+}
+
+/*-------------------------------------------------------------------------*
+ * TD handling functions
+ *-------------------------------------------------------------------------*/
+
+/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
+
+static void td_fill(ohci_t * ohci, unsigned int info,
+ void *data, int len,
+ struct usb_device *dev, int index, urb_priv_t * urb_priv)
+{
+ volatile td_t *td, *td_pt;
+#ifdef OHCI_FILL_TRACE
+ int i;
+#endif
+
+ if (index > urb_priv->length) {
+ err("index > length");
+ return;
+ }
+ /* use this td as the next dummy */
+ td_pt = urb_priv->td[index];
+ td_pt->hwNextTD = 0;
+
+ /* fill the old dummy TD */
+ td = urb_priv->td[index] =
+ (td_t *) (ohci_cpu_to_le32(urb_priv->ed->hwTailP) & ~0xf);
+
+ td->ed = urb_priv->ed;
+ td->next_dl_td = NULL;
+ td->index = index;
+ td->data = (__u32) data;
+#ifdef OHCI_FILL_TRACE
+ if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK)
+ && usb_pipeout(urb_priv->pipe)) {
+ for (i = 0; i < len; i++)
+ printf("td->data[%d] %#2x ", i,
+ ((unsigned char *)td->data)[i]);
+ printf("\n");
+ }
+#endif
+ if (!len)
+ data = 0;
+
+ td->hwINFO = ohci_cpu_to_le32(info);
+ td->hwCBP = ohci_cpu_to_le32((unsigned long)data);
+ if (data)
+ td->hwBE = ohci_cpu_to_le32((unsigned long)(data + len - 1));
+ else
+ td->hwBE = 0;
+ td->hwNextTD = ohci_cpu_to_le32((unsigned long)td_pt);
+ td->hwPSW[0] = ohci_cpu_to_le16(((__u32) data & 0x0FFF) | 0xE000);
+
+ /* append to queue */
+ td->ed->hwTailP = td->hwNextTD;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* prepare all TDs of a transfer */
+
+static void td_submit_job(struct usb_device *dev, unsigned long pipe,
+ void *buffer, int transfer_len,
+ struct devrequest *setup, urb_priv_t * urb,
+ int interval)
+{
+ ohci_t *ohci = &gohci;
+ int data_len = transfer_len;
+ void *data;
+ int cnt = 0;
+ __u32 info = 0;
+ unsigned int toggle = 0;
+
+ /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */
+ if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
+ toggle = TD_T_TOGGLE;
+ } else {
+ toggle = TD_T_DATA0;
+ usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe),
+ 1);
+ }
+ urb->td_cnt = 0;
+ if (data_len)
+ data = buffer;
+ else
+ data = 0;
+
+ switch (usb_pipetype(pipe)) {
+ case PIPE_BULK:
+ info = usb_pipeout(pipe) ? TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN;
+ while (data_len > 4096) {
+ td_fill(ohci, info | (cnt ? TD_T_TOGGLE : toggle), data,
+ 4096, dev, cnt, urb);
+ data += 4096;
+ data_len -= 4096;
+ cnt++;
+ }
+ info = usb_pipeout(pipe) ?
+ TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN;
+ td_fill(ohci, info | (cnt ? TD_T_TOGGLE : toggle), data,
+ data_len, dev, cnt, urb);
+ cnt++;
+
+ if (!ohci->sleeping)
+ writel(OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */
+ break;
+
+ case PIPE_CONTROL:
+ info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
+ td_fill(ohci, info, setup, 8, dev, cnt++, urb);
+ if (data_len > 0) {
+ info = usb_pipeout(pipe) ?
+ TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R
+ | TD_DP_IN | TD_T_DATA1;
+ /* NOTE: mishandles transfers >8K, some >4K */
+ td_fill(ohci, info, data, data_len, dev, cnt++, urb);
+ }
+ info = usb_pipeout(pipe) ?
+ TD_CC | TD_DP_IN | TD_T_DATA1 : TD_CC | TD_DP_OUT |
+ TD_T_DATA1;
+ td_fill(ohci, info, data, 0, dev, cnt++, urb);
+ if (!ohci->sleeping)
+ writel(OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */
+ break;
+ }
+ if (urb->length != cnt)
+ dbg("TD LENGTH %d != CNT %d", urb->length, cnt);
+}
+
+/*-------------------------------------------------------------------------*
+ * Done List handling functions
+ *-------------------------------------------------------------------------*/
+
+/* calculate the transfer length and update the urb */
+
+static void dl_transfer_length(td_t * td)
+{
+ __u32 tdINFO, tdBE, tdCBP;
+ urb_priv_t *lurb_priv = &urb_priv;
+
+ tdINFO = ohci_cpu_to_le32(td->hwINFO);
+ tdBE = ohci_cpu_to_le32(td->hwBE);
+ tdCBP = ohci_cpu_to_le32(td->hwCBP);
+
+ if (!(usb_pipetype(lurb_priv->pipe) == PIPE_CONTROL &&
+ ((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
+ if (tdBE != 0) {
+ if (td->hwCBP == 0)
+ lurb_priv->actual_length += tdBE - td->data + 1;
+ else
+ lurb_priv->actual_length += tdCBP - td->data;
+ }
+ }
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* replies to the request have to be on a FIFO basis so
+ * we reverse the reversed done-list */
+
+static td_t *dl_reverse_done_list(ohci_t * ohci)
+{
+ __u32 td_list_hc;
+ td_t *td_rev = NULL;
+ td_t *td_list = NULL;
+ urb_priv_t *lurb_priv = NULL;
+
+ td_list_hc = ohci_cpu_to_le32(ohci->hcca->done_head) & 0xfffffff0;
+ ohci->hcca->done_head = 0;
+
+ while (td_list_hc) {
+ td_list = (td_t *) td_list_hc;
+
+ if (TD_CC_GET(ohci_cpu_to_le32(td_list->hwINFO))) {
+ lurb_priv = &urb_priv;
+ dbg(" USB-error/status: %x : %p",
+ TD_CC_GET(ohci_cpu_to_le32(td_list->hwINFO)),
+ td_list);
+ if (td_list->ed->hwHeadP & ohci_cpu_to_le32(0x1)) {
+ if (lurb_priv
+ && ((td_list->index + 1) <
+ lurb_priv->length)) {
+ td_list->ed->hwHeadP =
+ (lurb_priv->
+ td[lurb_priv->length -
+ 1]->
+ hwNextTD &
+ ohci_cpu_to_le32(0xfffffff0)) |
+ (td_list->ed->
+ hwHeadP & ohci_cpu_to_le32(0x2));
+ lurb_priv->td_cnt +=
+ lurb_priv->length - td_list->index -
+ 1;
+ } else
+ td_list->ed->hwHeadP &=
+ ohci_cpu_to_le32(0xfffffff2);
+ }
+#ifdef CONFIG_MPC5200
+ td_list->hwNextTD = 0;
+#endif
+ }
+
+ td_list->next_dl_td = td_rev;
+ td_rev = td_list;
+ td_list_hc = ohci_cpu_to_le32(td_list->hwNextTD) & 0xfffffff0;
+ }
+ return td_list;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* td done list */
+static int dl_done_list(ohci_t * ohci, td_t * td_list)
+{
+ td_t *td_list_next = NULL;
+ ed_t *ed;
+ int cc = 0;
+ int stat = 0xff;
+ /* urb_t *urb; */
+ urb_priv_t *lurb_priv;
+ __u32 tdINFO, edHeadP, edTailP;
+
+ while (td_list) {
+ td_list_next = td_list->next_dl_td;
+
+ lurb_priv = &urb_priv;
+ tdINFO = ohci_cpu_to_le32(td_list->hwINFO);
+
+ ed = td_list->ed;
+
+ dl_transfer_length(td_list);
+
+ /* error code of transfer */
+ cc = TD_CC_GET(tdINFO);
+ if (++(lurb_priv->td_cnt) == lurb_priv->length) {
+ if ((ed->state & (ED_OPER | ED_UNLINK))
+ && (lurb_priv->state != URB_DEL)) {
+ dbg("ConditionCode %#x", cc);
+ stat = cc_to_error[cc];
+ }
+ }
+
+ if (ed->state != ED_NEW) {
+ edHeadP = ohci_cpu_to_le32(ed->hwHeadP) & 0xfffffff0;
+ edTailP = ohci_cpu_to_le32(ed->hwTailP);
+
+ /* unlink eds if they are not busy */
+ if ((edHeadP == edTailP) && (ed->state == ED_OPER))
+ ep_unlink(ohci, ed);
+ }
+
+ td_list = td_list_next;
+ }
+ return stat;
+}
+
+/*-------------------------------------------------------------------------*
+ * Virtual Root Hub
+ *-------------------------------------------------------------------------*/
+
+/* Device descriptor */
+static __u8 root_hub_dev_des[] = {
+ 0x12, /* __u8 bLength; */
+ 0x01, /* __u8 bDescriptorType; Device */
+ 0x10, /* __u16 bcdUSB; v1.1 */
+ 0x01,
+ 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
+ 0x00, /* __u8 bDeviceSubClass; */
+ 0x00, /* __u8 bDeviceProtocol; */
+ 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
+ 0x00, /* __u16 idVendor; */
+ 0x00,
+ 0x00, /* __u16 idProduct; */
+ 0x00,
+ 0x00, /* __u16 bcdDevice; */
+ 0x00,
+ 0x00, /* __u8 iManufacturer; */
+ 0x01, /* __u8 iProduct; */
+ 0x00, /* __u8 iSerialNumber; */
+ 0x01 /* __u8 bNumConfigurations; */
+};
+
+/* Configuration descriptor */
+static __u8 root_hub_config_des[] = {
+ 0x09, /* __u8 bLength; */
+ 0x02, /* __u8 bDescriptorType; Configuration */
+ 0x19, /* __u16 wTotalLength; */
+ 0x00,
+ 0x01, /* __u8 bNumInterfaces; */
+ 0x01, /* __u8 bConfigurationValue; */
+ 0x00, /* __u8 iConfiguration; */
+ 0x40, /* __u8 bmAttributes;
+ Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
+ 0x00, /* __u8 MaxPower; */
+
+ /* interface */
+ 0x09, /* __u8 if_bLength; */
+ 0x04, /* __u8 if_bDescriptorType; Interface */
+ 0x00, /* __u8 if_bInterfaceNumber; */
+ 0x00, /* __u8 if_bAlternateSetting; */
+ 0x01, /* __u8 if_bNumEndpoints; */
+ 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
+ 0x00, /* __u8 if_bInterfaceSubClass; */
+ 0x00, /* __u8 if_bInterfaceProtocol; */
+ 0x00, /* __u8 if_iInterface; */
+
+ /* endpoint */
+ 0x07, /* __u8 ep_bLength; */
+ 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
+ 0x03, /* __u8 ep_bmAttributes; Interrupt */
+ 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
+ 0x00,
+ 0xff /* __u8 ep_bInterval; 255 ms */
+};
+
+static unsigned char root_hub_str_index0[] = {
+ 0x04, /* __u8 bLength; */
+ 0x03, /* __u8 bDescriptorType; String-descriptor */
+ 0x09, /* __u8 lang ID */
+ 0x04, /* __u8 lang ID */
+};
+
+static unsigned char root_hub_str_index1[] = {
+ 28, /* __u8 bLength; */
+ 0x03, /* __u8 bDescriptorType; String-descriptor */
+ 'O', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'H', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'C', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'I', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ ' ', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'R', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'o', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'o', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 't', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ ' ', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'H', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'u', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+ 'b', /* __u8 Unicode */
+ 0, /* __u8 Unicode */
+};
+
+/* Hub class-specific descriptor is constructed dynamically */
+
+/*-------------------------------------------------------------------------*/
+
+#define OK(x) len = (x); break
+#ifdef DEBUG
+#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);}
+#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);}
+#else
+#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status)
+#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1])
+#endif
+#define RD_RH_STAT roothub_status(&gohci)
+#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1)
+
+/* request to virtual root hub */
+
+int rh_check_port_status(ohci_t * controller)
+{
+ __u32 temp, ndp, i;
+ int res;
+
+ res = -1;
+ temp = roothub_a(controller);
+ ndp = (temp & RH_A_NDP);
+ for (i = 0; i < ndp; i++) {
+ temp = roothub_portstatus(controller, i);
+ /* check for a device disconnect */
+ if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
+ (RH_PS_PESC | RH_PS_CSC)) && ((temp & RH_PS_CCS) == 0)) {
+ res = i;
+ break;
+ }
+ }
+ return res;
+}
+
+static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
+ void *buffer, int transfer_len,
+ struct devrequest *cmd)
+{
+ void *data = buffer;
+ int leni = transfer_len;
+ int len = 0;
+ int stat = 0;
+ __u32 datab[4];
+ __u8 *data_buf = (__u8 *) datab;
+ __u16 bmRType_bReq;
+ __u16 wValue;
+ __u16 wIndex;
+ __u16 wLength;
+
+#ifdef DEBUG
+ urb_priv.actual_length = 0;
+ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)",
+ usb_pipein(pipe));
+#endif
+ if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
+ info("Root-Hub submit IRQ: NOT implemented");
+ return 0;
+ }
+
+ bmRType_bReq = cmd->requesttype | (cmd->request << 8);
+ wValue = m16_swap(cmd->value);
+ wIndex = m16_swap(cmd->index);
+ wLength = m16_swap(cmd->length);
+
+ info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
+ dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength);
+
+ switch (bmRType_bReq) {
+ /* Request Destination:
+ without flags: Device,
+ RH_INTERFACE: interface,
+ RH_ENDPOINT: endpoint,
+ RH_CLASS means HUB here,
+ RH_OTHER | RH_CLASS almost ever means HUB_PORT here
+ */
+
+ case RH_GET_STATUS:
+ *(__u16 *) data_buf = m16_swap(1);
+ OK(2);
+ case RH_GET_STATUS | RH_INTERFACE:
+ *(__u16 *) data_buf = m16_swap(0);
+ OK(2);
+ case RH_GET_STATUS | RH_ENDPOINT:
+ *(__u16 *) data_buf = m16_swap(0);
+ OK(2);
+ case RH_GET_STATUS | RH_CLASS:
+ *(__u32 *) data_buf =
+ m32_swap(RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
+ OK(4);
+ case RH_GET_STATUS | RH_OTHER | RH_CLASS:
+ *(__u32 *) data_buf = m32_swap(RD_RH_PORTSTAT);
+ OK(4);
+
+ case RH_CLEAR_FEATURE | RH_ENDPOINT:
+ switch (wValue) {
+ case (RH_ENDPOINT_STALL):
+ OK(0);
+ }
+ break;
+
+ case RH_CLEAR_FEATURE | RH_CLASS:
+ switch (wValue) {
+ case RH_C_HUB_LOCAL_POWER:
+ OK(0);
+ case (RH_C_HUB_OVER_CURRENT):
+ WR_RH_STAT(RH_HS_OCIC);
+ OK(0);
+ }
+ break;
+
+ case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
+ switch (wValue) {
+ case (RH_PORT_ENABLE):
+ WR_RH_PORTSTAT(RH_PS_CCS);
+ OK(0);
+ case (RH_PORT_SUSPEND):
+ WR_RH_PORTSTAT(RH_PS_POCI);
+ OK(0);
+ case (RH_PORT_POWER):
+ WR_RH_PORTSTAT(RH_PS_LSDA);
+ OK(0);
+ case (RH_C_PORT_CONNECTION):
+ WR_RH_PORTSTAT(RH_PS_CSC);
+ OK(0);
+ case (RH_C_PORT_ENABLE):
+ WR_RH_PORTSTAT(RH_PS_PESC);
+ OK(0);
+ case (RH_C_PORT_SUSPEND):
+ WR_RH_PORTSTAT(RH_PS_PSSC);
+ OK(0);
+ case (RH_C_PORT_OVER_CURRENT):
+ WR_RH_PORTSTAT(RH_PS_OCIC);
+ OK(0);
+ case (RH_C_PORT_RESET):
+ WR_RH_PORTSTAT(RH_PS_PRSC);
+ OK(0);
+ }
+ break;
+
+ case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
+ switch (wValue) {
+ case (RH_PORT_SUSPEND):
+ WR_RH_PORTSTAT(RH_PS_PSS);
+ OK(0);
+ case (RH_PORT_RESET): /* BUG IN HUP CODE ******** */
+ if (RD_RH_PORTSTAT & RH_PS_CCS)
+ WR_RH_PORTSTAT(RH_PS_PRS);
+ OK(0);
+ case (RH_PORT_POWER):
+ WR_RH_PORTSTAT(RH_PS_PPS);
+ OK(0);
+ case (RH_PORT_ENABLE): /* BUG IN HUP CODE ******** */
+ if (RD_RH_PORTSTAT & RH_PS_CCS)
+ WR_RH_PORTSTAT(RH_PS_PES);
+ OK(0);
+ }
+ break;
+
+ case RH_SET_ADDRESS:
+ gohci.rh.devnum = wValue;
+ OK(0);
+
+ case RH_GET_DESCRIPTOR:
+ switch ((wValue & 0xff00) >> 8) {
+ case (0x01): /* device descriptor */
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_dev_des), wLength));
+ data_buf = root_hub_dev_des;
+ OK(len);
+ case (0x02): /* configuration descriptor */
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_config_des),
+ wLength));
+ data_buf = root_hub_config_des;
+ OK(len);
+ case (0x03): /* string descriptors */
+ if (wValue == 0x0300) {
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_str_index0),
+ wLength));
+ data_buf = root_hub_str_index0;
+ OK(len);
+ }
+ if (wValue == 0x0301) {
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_str_index1),
+ wLength));
+ data_buf = root_hub_str_index1;
+ OK(len);
+ }
+ default:
+ stat = USB_ST_STALLED;
+ }
+ break;
+
+ case RH_GET_DESCRIPTOR | RH_CLASS:
+ {
+ __u32 temp = roothub_a(&gohci);
+
+ data_buf[0] = 9; /* min length; */
+ data_buf[1] = 0x29;
+ data_buf[2] = temp & RH_A_NDP;
+ data_buf[3] = 0;
+ if (temp & RH_A_PSM) /* per-port power switching? */
+ data_buf[3] |= 0x1;
+ if (temp & RH_A_NOCP) /* no overcurrent reporting? */
+ data_buf[3] |= 0x10;
+ else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */
+ data_buf[3] |= 0x8;
+
+ /* corresponds to data_buf[4-7] */
+ datab[1] = 0;
+ data_buf[5] = (temp & RH_A_POTPGT) >> 24;
+ temp = roothub_b(&gohci);
+ data_buf[7] = temp & RH_B_DR;
+ if (data_buf[2] < 7) {
+ data_buf[8] = 0xff;
+ } else {
+ data_buf[0] += 2;
+ data_buf[8] = (temp & RH_B_DR) >> 8;
+ data_buf[10] = data_buf[9] = 0xff;
+ }
+
+ len = min_t(unsigned int, leni,
+ min_t(unsigned int, data_buf[0], wLength));
+ OK(len);
+ }
+
+ case RH_GET_CONFIGURATION:
+ *(__u8 *) data_buf = 0x01;
+ OK(1);
+
+ case RH_SET_CONFIGURATION:
+ WR_RH_STAT(0x10000);
+ OK(0);
+
+ default:
+ dbg("unsupported root hub command");
+ stat = USB_ST_STALLED;
+ }
+
+#ifdef DEBUG
+ ohci_dump_roothub(&gohci, 1);
+#endif
+
+ len = min_t(int, len, leni);
+ if (data != data_buf)
+ memcpy(data, data_buf, len);
+ dev->act_len = len;
+ dev->status = stat;
+
+#ifdef DEBUG
+ if (transfer_len)
+ urb_priv.actual_length = transfer_len;
+ pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)",
+ 0 /*usb_pipein(pipe) */ );
+#endif
+
+ return stat;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* common code for handling submit messages - used for all but root hub */
+/* accesses. */
+int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, struct devrequest *setup, int interval)
+{
+ int stat = 0;
+ int maxsize = usb_maxpacket(dev, pipe);
+ int timeout;
+
+ /* device pulled? Shortcut the action. */
+ if (devgone == dev) {
+ dev->status = USB_ST_CRC_ERR;
+ return 0;
+ }
+#ifdef DEBUG
+ urb_priv.actual_length = 0;
+ pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB",
+ usb_pipein(pipe));
+#endif
+ if (!maxsize) {
+ err("submit_common_message: pipesize for pipe %lx is zero",
+ pipe);
+ return -1;
+ }
+
+ if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) <
+ 0) {
+ err("sohci_submit_job failed");
+ return -1;
+ }
+
+ /* allow more time for a BULK device to react - some are slow */
+#define BULK_TO 5000 /* timeout in milliseconds */
+ if (usb_pipetype(pipe) == PIPE_BULK)
+ timeout = BULK_TO;
+ else
+ timeout = 100;
+
+ /* wait for it to complete */
+ for (;;) {
+ /* check whether the controller is done */
+ stat = hc_interrupt();
+ if (stat < 0) {
+ stat = USB_ST_CRC_ERR;
+ break;
+ }
+ if (stat >= 0 && stat < 0xff) {
+ /* 0xff is returned for an SF-interrupt */
+ break;
+ }
+ if (--timeout) {
+ wait_ms(1);
+ } else {
+ err("CTL:TIMEOUT ");
+ stat = USB_ST_CRC_ERR;
+ break;
+ }
+ }
+ /* we got an Root Hub Status Change interrupt */
+ if (got_rhsc) {
+#ifdef DEBUG
+ ohci_dump_roothub(&gohci, 1);
+#endif
+ got_rhsc = 0;
+ /* abuse timeout */
+ timeout = rh_check_port_status(&gohci);
+ if (timeout >= 0) {
+#if 0 /* this does nothing useful, but leave it here in case that changes */
+ /* the called routine adds 1 to the passed value */
+ usb_hub_port_connect_change(gohci.rh.dev, timeout - 1);
+#endif
+ /*
+ * XXX
+ * This is potentially dangerous because it assumes
+ * that only one device is ever plugged in!
+ */
+ devgone = dev;
+ }
+ }
+
+ dev->status = stat;
+ dev->act_len = transfer_len;
+
+#ifdef DEBUG
+ pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)",
+ usb_pipein(pipe));
+#endif
+
+ /* free TDs in urb_priv */
+ urb_free_priv(&urb_priv);
+ return 0;
+}
+
+/* submit routines called from usb.c */
+int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len)
+{
+ info("submit_bulk_msg");
+ return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0);
+}
+
+int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, struct devrequest *setup)
+{
+ int maxsize = usb_maxpacket(dev, pipe);
+
+ info("submit_control_msg");
+#ifdef DEBUG
+ urb_priv.actual_length = 0;
+ pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB",
+ usb_pipein(pipe));
+#endif
+ if (!maxsize) {
+ err("submit_control_message: pipesize for pipe %lx is zero",
+ pipe);
+ return -1;
+ }
+ if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) {
+ gohci.rh.dev = dev;
+ /* root hub - redirect */
+ return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len,
+ setup);
+ }
+
+ return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0);
+}
+
+int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, int interval)
+{
+ info("submit_int_msg");
+ return -1;
+}
+
+/*-------------------------------------------------------------------------*
+ * HC functions
+ *-------------------------------------------------------------------------*/
+
+/* reset the HC and BUS */
+
+static int hc_reset(ohci_t * ohci)
+{
+ int timeout = 30;
+ int smm_timeout = 50; /* 0,5 sec */
+
+ if (readl(&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */
+ writel(OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */
+ info("USB HC TakeOver from SMM");
+ while (readl(&ohci->regs->control) & OHCI_CTRL_IR) {
+ wait_ms(10);
+ if (--smm_timeout == 0) {
+ err("USB HC TakeOver failed!");
+ return -1;
+ }
+ }
+ }
+
+ /* Disable HC interrupts */
+ writel(OHCI_INTR_MIE, &ohci->regs->intrdisable);
+
+ dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;",
+ ohci->slot_name, readl(&ohci->regs->control));
+
+ /* Reset USB (needed by some controllers) */
+ ohci->hc_control = 0;
+ writel(ohci->hc_control, &ohci->regs->control);
+
+ /* HC Reset requires max 10 us delay */
+ writel(OHCI_HCR, &ohci->regs->cmdstatus);
+ while ((readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
+ if (--timeout == 0) {
+ err("USB HC reset timed out!");
+ return -1;
+ }
+ udelay(1);
+ }
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* Start an OHCI controller, set the BUS operational
+ * enable interrupts
+ * connect the virtual root hub */
+
+static int hc_start(ohci_t * ohci)
+{
+ __u32 mask;
+ unsigned int fminterval;
+
+ ohci->disabled = 1;
+
+ /* Tell the controller where the control and bulk lists are
+ * The lists are empty now. */
+
+ writel(0, &ohci->regs->ed_controlhead);
+ writel(0, &ohci->regs->ed_bulkhead);
+
+ writel((__u32) ohci->hcca, &ohci->regs->hcca); /* a reset clears this */
+
+ fminterval = 0x2edf;
+ writel((fminterval * 9) / 10, &ohci->regs->periodicstart);
+ fminterval |= ((((fminterval - 210) * 6) / 7) << 16);
+ writel(fminterval, &ohci->regs->fminterval);
+ writel(0x628, &ohci->regs->lsthresh);
+
+ /* start controller operations */
+ ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
+ ohci->disabled = 0;
+ writel(ohci->hc_control, &ohci->regs->control);
+
+ /* disable all interrupts */
+ mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD |
+ OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC |
+ OHCI_INTR_OC | OHCI_INTR_MIE);
+ writel(mask, &ohci->regs->intrdisable);
+ /* clear all interrupts */
+ mask &= ~OHCI_INTR_MIE;
+ writel(mask, &ohci->regs->intrstatus);
+ /* Choose the interrupts we care about now - but w/o MIE */
+ mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
+ writel(mask, &ohci->regs->intrenable);
+
+#ifdef OHCI_USE_NPS
+ /* required for AMD-756 and some Mac platforms */
+ writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM,
+ &ohci->regs->roothub.a);
+ writel(RH_HS_LPSC, &ohci->regs->roothub.status);
+#endif /* OHCI_USE_NPS */
+
+#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);})
+ /* POTPGT delay is bits 24-31, in 2 ms units. */
+ mdelay((roothub_a(ohci) >> 23) & 0x1fe);
+
+ /* connect the virtual root hub */
+ ohci->rh.devnum = 0;
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* an interrupt happens */
+
+static int hc_interrupt(void)
+{
+ ohci_t *ohci = &gohci;
+ struct ohci_regs *regs = ohci->regs;
+ int ints;
+ int stat = -1;
+
+ if ((ohci->hcca->done_head != 0)
+ && !(ohci_cpu_to_le32(ohci->hcca->done_head) & 0x01)) {
+ ints = OHCI_INTR_WDH;
+ } else {
+ ints = readl(&regs->intrstatus);
+ }
+
+ /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */
+
+ if (ints & OHCI_INTR_RHSC) {
+ got_rhsc = 1;
+ }
+
+ if (ints & OHCI_INTR_UE) {
+ ohci->disabled++;
+ err("OHCI Unrecoverable Error, controller usb-%s disabled",
+ ohci->slot_name);
+ /* e.g. due to PCI Master/Target Abort */
+
+#ifdef DEBUG
+ ohci_dump(ohci, 1);
+#endif
+ /* FIXME: be optimistic, hope that bug won't repeat often. */
+ /* Make some non-interrupt context restart the controller. */
+ /* Count and limit the retries though; either hardware or */
+ /* software errors can go forever... */
+ hc_reset(ohci);
+ return -1;
+ }
+
+ if (ints & OHCI_INTR_WDH) {
+ writel(OHCI_INTR_WDH, &regs->intrdisable);
+ stat = dl_done_list(&gohci, dl_reverse_done_list(&gohci));
+ writel(OHCI_INTR_WDH, &regs->intrenable);
+ }
+
+ if (ints & OHCI_INTR_SO) {
+ dbg("USB Schedule overrun\n");
+ writel(OHCI_INTR_SO, &regs->intrenable);
+ stat = -1;
+ }
+
+ /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */
+ if (ints & OHCI_INTR_SF) {
+ unsigned int frame = ohci_cpu_to_le16(ohci->hcca->frame_no) & 1;
+ writel(OHCI_INTR_SF, &regs->intrdisable);
+ if (ohci->ed_rm_list[frame] != NULL)
+ writel(OHCI_INTR_SF, &regs->intrenable);
+ stat = 0xff;
+ }
+
+ writel(ints, &regs->intrstatus);
+ return stat;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------*/
+
+/* De-allocate all resources.. */
+
+static void hc_release_ohci(ohci_t * ohci)
+{
+ dbg("USB HC release ohci usb-%s", ohci->slot_name);
+
+ if (!ohci->disabled)
+ hc_reset(ohci);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * low level initalisation routine, called from usb.c
+ */
+static char ohci_inited = 0;
+
+int usb_lowlevel_init(void)
+{
+
+ memset(&gohci, 0, sizeof(ohci_t));
+ memset(&urb_priv, 0, sizeof(urb_priv_t));
+
+ /* align the storage */
+ if ((__u32) & ghcca[0] & 0xff) {
+ err("HCCA not aligned!!");
+ return -1;
+ }
+ phcca = &ghcca[0];
+ info("aligned ghcca %p", phcca);
+ memset(&ohci_dev, 0, sizeof(struct ohci_device));
+ if ((__u32) & ohci_dev.ed[0] & 0x7) {
+ err("EDs not aligned!!");
+ return -1;
+ }
+ memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1));
+ if ((__u32) gtd & 0x7) {
+ err("TDs not aligned!!");
+ return -1;
+ }
+ ptd = gtd;
+ gohci.hcca = phcca;
+ memset(phcca, 0, sizeof(struct ohci_hcca));
+
+ gohci.disabled = 1;
+ gohci.sleeping = 0;
+ gohci.irq = -1;
+ gohci.regs = (struct ohci_regs *)(CFG_PERIPHERAL_BASE | 0x1000);
+
+ gohci.flags = 0;
+ gohci.slot_name = "ppc440";
+
+ if (hc_reset(&gohci) < 0) {
+ hc_release_ohci(&gohci);
+ return -1;
+ }
+
+ if (hc_start(&gohci) < 0) {
+ err("can't start usb-%s", gohci.slot_name);
+ hc_release_ohci(&gohci);
+ return -1;
+ }
+#ifdef DEBUG
+ ohci_dump(&gohci, 1);
+#endif
+ ohci_inited = 1;
+
+ /* init the device driver */
+ usb_dev_init();
+
+ return 0;
+}
+
+int usb_lowlevel_stop(void)
+{
+ /* this gets called really early - before the controller has */
+ /* even been initialized! */
+ if (!ohci_inited)
+ return 0;
+ /* TODO release any interrupts, etc. */
+ /* call hc_release_ohci() here ? */
+ hc_reset(&gohci);
+ return 0;
+}
+
+#endif /* CONFIG_USB_OHCI */
diff --git a/cpu/ppc4xx/usb_ohci.h b/cpu/ppc4xx/usb_ohci.h
new file mode 100644
index 0000000..706e05e
--- /dev/null
+++ b/cpu/ppc4xx/usb_ohci.h
@@ -0,0 +1,410 @@
+/*
+ * URB OHCI HCD (Host Controller Driver) for USB.
+ *
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net>
+ *
+ * usb-ohci.h
+ */
+
+static int cc_to_error[16] = {
+
+/* mapping of the OHCI CC status to error codes */
+ /* No Error */ 0,
+ /* CRC Error */ USB_ST_CRC_ERR,
+ /* Bit Stuff */ USB_ST_BIT_ERR,
+ /* Data Togg */ USB_ST_CRC_ERR,
+ /* Stall */ USB_ST_STALLED,
+ /* DevNotResp */ -1,
+ /* PIDCheck */ USB_ST_BIT_ERR,
+ /* UnExpPID */ USB_ST_BIT_ERR,
+ /* DataOver */ USB_ST_BUF_ERR,
+ /* DataUnder */ USB_ST_BUF_ERR,
+ /* reservd */ -1,
+ /* reservd */ -1,
+ /* BufferOver */ USB_ST_BUF_ERR,
+ /* BuffUnder */ USB_ST_BUF_ERR,
+ /* Not Access */ -1,
+ /* Not Access */ -1
+};
+
+/* ED States */
+
+#define ED_NEW 0x00
+#define ED_UNLINK 0x01
+#define ED_OPER 0x02
+#define ED_DEL 0x04
+#define ED_URB_DEL 0x08
+
+/* usb_ohci_ed */
+struct ed {
+ __u32 hwINFO;
+ __u32 hwTailP;
+ __u32 hwHeadP;
+ __u32 hwNextED;
+
+ struct ed *ed_prev;
+ __u8 int_period;
+ __u8 int_branch;
+ __u8 int_load;
+ __u8 int_interval;
+ __u8 state;
+ __u8 type;
+ __u16 last_iso;
+ struct ed *ed_rm_list;
+
+ struct usb_device *usb_dev;
+ __u32 unused[3];
+} __attribute((aligned(16)));
+typedef struct ed ed_t;
+
+/* TD info field */
+#define TD_CC 0xf0000000
+#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f)
+#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)
+#define TD_EC 0x0C000000
+#define TD_T 0x03000000
+#define TD_T_DATA0 0x02000000
+#define TD_T_DATA1 0x03000000
+#define TD_T_TOGGLE 0x00000000
+#define TD_R 0x00040000
+#define TD_DI 0x00E00000
+#define TD_DI_SET(X) (((X) & 0x07)<< 21)
+#define TD_DP 0x00180000
+#define TD_DP_SETUP 0x00000000
+#define TD_DP_IN 0x00100000
+#define TD_DP_OUT 0x00080000
+
+#define TD_ISO 0x00010000
+#define TD_DEL 0x00020000
+
+/* CC Codes */
+#define TD_CC_NOERROR 0x00
+#define TD_CC_CRC 0x01
+#define TD_CC_BITSTUFFING 0x02
+#define TD_CC_DATATOGGLEM 0x03
+#define TD_CC_STALL 0x04
+#define TD_DEVNOTRESP 0x05
+#define TD_PIDCHECKFAIL 0x06
+#define TD_UNEXPECTEDPID 0x07
+#define TD_DATAOVERRUN 0x08
+#define TD_DATAUNDERRUN 0x09
+#define TD_BUFFEROVERRUN 0x0C
+#define TD_BUFFERUNDERRUN 0x0D
+#define TD_NOTACCESSED 0x0F
+
+#define MAXPSW 1
+
+struct td {
+ __u32 hwINFO;
+ __u32 hwCBP; /* Current Buffer Pointer */
+ __u32 hwNextTD; /* Next TD Pointer */
+ __u32 hwBE; /* Memory Buffer End Pointer */
+
+ __u16 hwPSW[MAXPSW];
+ __u8 unused;
+ __u8 index;
+ struct ed *ed;
+ struct td *next_dl_td;
+ struct usb_device *usb_dev;
+ int transfer_len;
+ __u32 data;
+
+ __u32 unused2[2];
+} __attribute((aligned(32)));
+typedef struct td td_t;
+
+#define OHCI_ED_SKIP (1 << 14)
+
+/*
+ * The HCCA (Host Controller Communications Area) is a 256 byte
+ * structure defined in the OHCI spec. that the host controller is
+ * told the base address of. It must be 256-byte aligned.
+ */
+
+#define NUM_INTS 32 /* part of the OHCI standard */
+struct ohci_hcca {
+ __u32 int_table[NUM_INTS]; /* Interrupt ED table */
+#if defined(CONFIG_MPC5200)
+ __u16 pad1; /* set to 0 on each frame_no change */
+ __u16 frame_no; /* current frame number */
+#else
+ __u16 frame_no; /* current frame number */
+ __u16 pad1; /* set to 0 on each frame_no change */
+#endif
+ __u32 done_head; /* info returned for an interrupt */
+ u8 reserved_for_hc[116];
+} __attribute((aligned(256)));
+
+/*
+ * Maximum number of root hub ports.
+ */
+#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */
+
+/*
+ * This is the structure of the OHCI controller's memory mapped I/O
+ * region. This is Memory Mapped I/O. You must use the readl() and
+ * writel() macros defined in asm/io.h to access these!!
+ */
+struct ohci_regs {
+ /* control and status registers */
+ __u32 revision;
+ __u32 control;
+ __u32 cmdstatus;
+ __u32 intrstatus;
+ __u32 intrenable;
+ __u32 intrdisable;
+ /* memory pointers */
+ __u32 hcca;
+ __u32 ed_periodcurrent;
+ __u32 ed_controlhead;
+ __u32 ed_controlcurrent;
+ __u32 ed_bulkhead;
+ __u32 ed_bulkcurrent;
+ __u32 donehead;
+ /* frame counters */
+ __u32 fminterval;
+ __u32 fmremaining;
+ __u32 fmnumber;
+ __u32 periodicstart;
+ __u32 lsthresh;
+ /* Root hub ports */
+ struct ohci_roothub_regs {
+ __u32 a;
+ __u32 b;
+ __u32 status;
+ __u32 portstatus[MAX_ROOT_PORTS];
+ } roothub;
+} __attribute((aligned(32)));
+
+/* OHCI CONTROL AND STATUS REGISTER MASKS */
+
+/*
+ * HcControl (control) register masks
+ */
+#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */
+#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */
+#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */
+#define OHCI_CTRL_CLE (1 << 4) /* control list enable */
+#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */
+#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */
+#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */
+#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
+#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */
+
+/* pre-shifted values for HCFS */
+# define OHCI_USB_RESET (0 << 6)
+# define OHCI_USB_RESUME (1 << 6)
+# define OHCI_USB_OPER (2 << 6)
+# define OHCI_USB_SUSPEND (3 << 6)
+
+/*
+ * HcCommandStatus (cmdstatus) register masks
+ */
+#define OHCI_HCR (1 << 0) /* host controller reset */
+#define OHCI_CLF (1 << 1) /* control list filled */
+#define OHCI_BLF (1 << 2) /* bulk list filled */
+#define OHCI_OCR (1 << 3) /* ownership change request */
+#define OHCI_SOC (3 << 16) /* scheduling overrun count */
+
+/*
+ * masks used with interrupt registers:
+ * HcInterruptStatus (intrstatus)
+ * HcInterruptEnable (intrenable)
+ * HcInterruptDisable (intrdisable)
+ */
+#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */
+#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */
+#define OHCI_INTR_SF (1 << 2) /* start frame */
+#define OHCI_INTR_RD (1 << 3) /* resume detect */
+#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */
+#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */
+#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */
+#define OHCI_INTR_OC (1 << 30) /* ownership change */
+#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */
+
+/* Virtual Root HUB */
+struct virt_root_hub {
+ int devnum; /* Address of Root Hub endpoint */
+ void *dev; /* was urb */
+ void *int_addr;
+ int send;
+ int interval;
+};
+
+/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */
+
+/* destination of request */
+#define RH_INTERFACE 0x01
+#define RH_ENDPOINT 0x02
+#define RH_OTHER 0x03
+
+#define RH_CLASS 0x20
+#define RH_VENDOR 0x40
+
+/* Requests: bRequest << 8 | bmRequestType */
+#define RH_GET_STATUS 0x0080
+#define RH_CLEAR_FEATURE 0x0100
+#define RH_SET_FEATURE 0x0300
+#define RH_SET_ADDRESS 0x0500
+#define RH_GET_DESCRIPTOR 0x0680
+#define RH_SET_DESCRIPTOR 0x0700
+#define RH_GET_CONFIGURATION 0x0880
+#define RH_SET_CONFIGURATION 0x0900
+#define RH_GET_STATE 0x0280
+#define RH_GET_INTERFACE 0x0A80
+#define RH_SET_INTERFACE 0x0B00
+#define RH_SYNC_FRAME 0x0C80
+/* Our Vendor Specific Request */
+#define RH_SET_EP 0x2000
+
+/* Hub port features */
+#define RH_PORT_CONNECTION 0x00
+#define RH_PORT_ENABLE 0x01
+#define RH_PORT_SUSPEND 0x02
+#define RH_PORT_OVER_CURRENT 0x03
+#define RH_PORT_RESET 0x04
+#define RH_PORT_POWER 0x08
+#define RH_PORT_LOW_SPEED 0x09
+
+#define RH_C_PORT_CONNECTION 0x10
+#define RH_C_PORT_ENABLE 0x11
+#define RH_C_PORT_SUSPEND 0x12
+#define RH_C_PORT_OVER_CURRENT 0x13
+#define RH_C_PORT_RESET 0x14
+
+/* Hub features */
+#define RH_C_HUB_LOCAL_POWER 0x00
+#define RH_C_HUB_OVER_CURRENT 0x01
+
+#define RH_DEVICE_REMOTE_WAKEUP 0x00
+#define RH_ENDPOINT_STALL 0x01
+
+#define RH_ACK 0x01
+#define RH_REQ_ERR -1
+#define RH_NACK 0x00
+
+/* OHCI ROOT HUB REGISTER MASKS */
+
+/* roothub.portstatus [i] bits */
+#define RH_PS_CCS 0x00000001 /* current connect status */
+#define RH_PS_PES 0x00000002 /* port enable status */
+#define RH_PS_PSS 0x00000004 /* port suspend status */
+#define RH_PS_POCI 0x00000008 /* port over current indicator */
+#define RH_PS_PRS 0x00000010 /* port reset status */
+#define RH_PS_PPS 0x00000100 /* port power status */
+#define RH_PS_LSDA 0x00000200 /* low speed device attached */
+#define RH_PS_CSC 0x00010000 /* connect status change */
+#define RH_PS_PESC 0x00020000 /* port enable status change */
+#define RH_PS_PSSC 0x00040000 /* port suspend status change */
+#define RH_PS_OCIC 0x00080000 /* over current indicator change */
+#define RH_PS_PRSC 0x00100000 /* port reset status change */
+
+/* roothub.status bits */
+#define RH_HS_LPS 0x00000001 /* local power status */
+#define RH_HS_OCI 0x00000002 /* over current indicator */
+#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */
+#define RH_HS_LPSC 0x00010000 /* local power status change */
+#define RH_HS_OCIC 0x00020000 /* over current indicator change */
+#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */
+
+/* roothub.b masks */
+#define RH_B_DR 0x0000ffff /* device removable flags */
+#define RH_B_PPCM 0xffff0000 /* port power control mask */
+
+/* roothub.a masks */
+#define RH_A_NDP (0xff << 0) /* number of downstream ports */
+#define RH_A_PSM (1 << 8) /* power switching mode */
+#define RH_A_NPS (1 << 9) /* no power switching */
+#define RH_A_DT (1 << 10) /* device type (mbz) */
+#define RH_A_OCPM (1 << 11) /* over current protection mode */
+#define RH_A_NOCP (1 << 12) /* no over current protection */
+#define RH_A_POTPGT (0xff << 24) /* power on to power good time */
+
+/* urb */
+#define N_URB_TD 48
+typedef struct {
+ ed_t *ed;
+ __u16 length; /* number of tds associated with this request */
+ __u16 td_cnt; /* number of tds already serviced */
+ int state;
+ unsigned long pipe;
+ int actual_length;
+ td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */
+} urb_priv_t;
+#define URB_DEL 1
+
+/*
+ * This is the full ohci controller description
+ *
+ * Note how the "proper" USB information is just
+ * a subset of what the full implementation needs. (Linus)
+ */
+
+typedef struct ohci {
+ struct ohci_hcca *hcca; /* hcca */
+ /*dma_addr_t hcca_dma; */
+
+ int irq;
+ int disabled; /* e.g. got a UE, we're hung */
+ int sleeping;
+ unsigned long flags; /* for HC bugs */
+
+ struct ohci_regs *regs; /* OHCI controller's memory */
+
+ ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */
+ ed_t *ed_bulktail; /* last endpoint of bulk list */
+ ed_t *ed_controltail; /* last endpoint of control list */
+ int intrstatus;
+ __u32 hc_control; /* copy of the hc control reg */
+ struct usb_device *dev[32];
+ struct virt_root_hub rh;
+
+ const char *slot_name;
+} ohci_t;
+
+#define NUM_EDS 8 /* num of preallocated endpoint descriptors */
+
+struct ohci_device {
+ ed_t ed[NUM_EDS];
+ int ed_cnt;
+};
+
+/* hcd */
+/* endpoint */
+static int ep_link(ohci_t * ohci, ed_t * ed);
+static int ep_unlink(ohci_t * ohci, ed_t * ed);
+static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe);
+
+/*-------------------------------------------------------------------------*/
+
+/* we need more TDs than EDs */
+#define NUM_TD 64
+
+/* +1 so we can align the storage */
+td_t gtd[NUM_TD + 1];
+/* pointers to aligned storage */
+td_t *ptd;
+
+/* TDs ... */
+static inline struct td *td_alloc(struct usb_device *usb_dev)
+{
+ int i;
+ struct td *td;
+
+ td = NULL;
+ for (i = 0; i < NUM_TD; i++) {
+ if (ptd[i].usb_dev == NULL) {
+ td = &ptd[i];
+ td->usb_dev = usb_dev;
+ break;
+ }
+ }
+
+ return td;
+}
+
+static inline void ed_free(struct ed *ed)
+{
+ ed->usb_dev = NULL;
+}
diff --git a/cpu/ppc4xx/usbdev.c b/cpu/ppc4xx/usbdev.c
new file mode 100644
index 0000000..f0901ac
--- /dev/null
+++ b/cpu/ppc4xx/usbdev.c
@@ -0,0 +1,214 @@
+/*USB 1.1,2.0 device*/
+
+#include <common.h>
+#include <asm/processor.h>
+
+#ifdef CONFIG_440_EP
+
+#include <usb.h>
+#include "usbdev.h"
+#include "vecnum.h"
+
+#define USB_DT_DEVICE 0x01
+#define USB_DT_CONFIG 0x02
+#define USB_DT_STRING 0x03
+#define USB_DT_INTERFACE 0x04
+#define USB_DT_ENDPOINT 0x05
+
+unsigned char set_value = -1;
+
+void process_endpoints(unsigned short usb2d0_intrin)
+{
+ /*will hold the packet received */
+ struct usb_device_descriptor usb_device_packet;
+ struct usb_config_descriptor usb_config_packet;
+ struct usb_string_descriptor usb_string_packet;
+ struct devrequest setup_packet;
+ unsigned int *setup_packet_pt;
+ unsigned char *packet_pt;
+ int temp, temp1;
+
+ int i;
+
+ /*printf("{USB device} - endpoint 0x%X \n", usb2d0_intrin); */
+
+ /*set usb address, seems to not work unless it is done in the next
+ interrupt, so that is why it is done this way */
+ if (set_value != -1)
+ *(unsigned char *)USB2D0_FADDR_8 = set_value;
+
+ /*endpoint 1 */
+ if (usb2d0_intrin & 0x01) {
+ setup_packet_pt = (unsigned int *)&setup_packet;
+
+ /*copy packet */
+ setup_packet_pt[0] = *(unsigned int *)USB2D0_FIFO_0;
+ setup_packet_pt[1] = *(unsigned int *)USB2D0_FIFO_0;
+ temp = *(unsigned int *)USB2D0_FIFO_0;
+ temp1 = *(unsigned int *)USB2D0_FIFO_0;
+
+ /*do some swapping */
+ setup_packet.value = swap_16(setup_packet.value);
+ setup_packet.index = swap_16(setup_packet.index);
+ setup_packet.length = swap_16(setup_packet.length);
+
+ /*clear rx packet */
+ *(unsigned short *)USB2D0_INCSR0_8 = 0x48;
+
+ /*printf("0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n", setup_packet.requesttype,
+ setup_packet.request, setup_packet.value,
+ setup_packet.index, setup_packet.length, temp, temp1 ); */
+
+ switch (setup_packet.request) {
+ case USB_REQ_GET_DESCRIPTOR:
+
+ switch (setup_packet.value >> 8) {
+ case USB_DT_DEVICE:
+ /*create packet */
+ usb_device_packet.bLength = 18;
+ usb_device_packet.bDescriptorType =
+ USB_DT_DEVICE;
+#ifdef USB_2_0_DEVICE
+ usb_device_packet.bcdUSB = swap_16(0x200);
+#else
+ usb_device_packet.bcdUSB = swap_16(0x110);
+#endif
+ usb_device_packet.bDeviceClass = 0xff;
+ usb_device_packet.bDeviceSubClass = 0;
+ usb_device_packet.bDeviceProtocol = 0;
+ usb_device_packet.bMaxPacketSize0 = 32;
+ usb_device_packet.idVendor = swap_16(1);
+ usb_device_packet.idProduct = swap_16(2);
+ usb_device_packet.bcdDevice = swap_16(0x300);
+ usb_device_packet.iManufacturer = 1;
+ usb_device_packet.iProduct = 1;
+ usb_device_packet.iSerialNumber = 1;
+ usb_device_packet.bNumConfigurations = 1;
+
+ /*put packet in fifo */
+ packet_pt = (unsigned char *)&usb_device_packet;
+ break;
+
+ case USB_DT_CONFIG:
+ /*create packet */
+ usb_config_packet.bLength = 9;
+ usb_config_packet.bDescriptorType =
+ USB_DT_CONFIG;
+ usb_config_packet.wTotalLength = swap_16(25);
+ usb_config_packet.bNumInterfaces = 1;
+ usb_config_packet.bConfigurationValue = 1;
+ usb_config_packet.iConfiguration = 0;
+ usb_config_packet.bmAttributes = 0x40;
+ usb_config_packet.MaxPower = 0;
+
+ /*put packet in fifo */
+ packet_pt = (unsigned char *)&usb_config_packet;
+ break;
+
+ case USB_DT_STRING:
+ /*create packet */
+ usb_string_packet.bLength = 2;
+ usb_string_packet.bDescriptorType =
+ USB_DT_STRING;
+ usb_string_packet.wData[0] = 0x0094;
+
+ /*put packet in fifo */
+ packet_pt = (unsigned char *)&usb_string_packet;
+ break;
+ }
+
+ /*put packet in fifo */
+ for (i = 0; i < (setup_packet.length); i++) {
+ *(unsigned char *)USB2D0_FIFO_0 = packet_pt[i];
+ }
+
+ /*give tx command */
+ *(unsigned short *)USB2D0_INCSR0_8 = 0x0a;
+
+ break;
+
+ case USB_REQ_SET_ADDRESS:
+
+ /*copy usb address */
+ set_value = setup_packet.value;
+
+ break;
+ }
+
+ }
+}
+
+void process_other(unsigned char usb2d0_intrusb)
+{
+
+ /*check for sof */
+ if (usb2d0_intrusb & 0x08) {
+ /*printf("{USB device} - sof detected\n"); */
+ }
+
+ /*check for reset */
+ if (usb2d0_intrusb & 0x04) {
+ /*printf("{USB device} - reset detected\n"); */
+
+ /*copy usb address of zero, need to do this when usb reset */
+ set_value = 0;
+ }
+
+ if (usb2d0_intrusb & 0x02) {
+ /*printf("{USB device} - resume detected\n"); */
+ }
+
+ if (usb2d0_intrusb & 0x01) {
+ /*printf("{USB device} - suspend detected\n"); */
+ }
+}
+
+int usbInt(void)
+{
+ /*Must read these 2 registers and use values to clear interrupts. If you
+ do not read them then the interrupt will not be cleared. If you do not
+ use the variable the optimizer will not do a read. */
+ volatile unsigned short usb2d0_intrin =
+ *(unsigned short *)USB2D0_INTRIN_16;
+ volatile unsigned char usb2d0_intrusb =
+ *(unsigned char *)USB2D0_INTRUSB_8;
+
+ /*check if there was an endpoint interrupt */
+ if (usb2d0_intrin != 0) {
+ process_endpoints(usb2d0_intrin);
+ }
+
+ /*check for other interrupts */
+ if (usb2d0_intrusb != 0) {
+ process_other(usb2d0_intrusb);
+ }
+
+ return 0;
+}
+
+void usb_dev_init()
+{
+#ifdef USB_2_0_DEVICE
+ printf("USB 2.0 Device init\n");
+ /*select 2.0 device */
+ mtsdr(sdr_usb0, 0x0); /* 2.0 */
+
+ /*usb dev init */
+ *(unsigned char *)USB2D0_POWER_8 = 0xa1; /* 2.0 */
+#else
+ printf("USB 1.1 Device init\n");
+ /*select 1.1 device */
+ mtsdr(sdr_usb0, 0x2); /* 1.1 */
+
+ /*usb dev init */
+ *(unsigned char *)USB2D0_POWER_8 = 0xc0; /* 1.1 */
+#endif
+
+ /*enable interrupts */
+ *(unsigned char *)USB2D0_INTRUSBE_8 = 0x0f;
+
+ irq_install_handler(VECNUM_USBDEV, (interrupt_handler_t *) usbInt,
+ NULL);
+}
+
+#endif /*CONFIG_440_EP */
diff --git a/cpu/ppc4xx/usbdev.h b/cpu/ppc4xx/usbdev.h
new file mode 100644
index 0000000..3446d98
--- /dev/null
+++ b/cpu/ppc4xx/usbdev.h
@@ -0,0 +1,31 @@
+#include <config.h>
+
+/*Common Registers*/
+#define USB2D0_INTRIN_16 (CFG_USB_DEVICE | 0x100)
+#define USB2D0_POWER_8 (CFG_USB_DEVICE | 0x102)
+#define USB2D0_FADDR_8 (CFG_USB_DEVICE | 0x103)
+#define USB2D0_INTRINE_16 (CFG_USB_DEVICE | 0x104)
+#define USB2D0_INTROUT_16 (CFG_USB_DEVICE | 0x106)
+#define USB2D0_INTRUSBE_8 (CFG_USB_DEVICE | 0x108)
+#define USB2D0_INTRUSB_8 (CFG_USB_DEVICE | 0x109)
+#define USB2D0_INTROUTE_16 (CFG_USB_DEVICE | 0x10a)
+#define USB2D0_TSTMODE_8 (CFG_USB_DEVICE | 0x10c)
+#define USB2D0_INDEX_8 (CFG_USB_DEVICE | 0x10d)
+#define USB2D0_FRAME_16 (CFG_USB_DEVICE | 0x10e)
+
+/*Indexed Registers*/
+#define USB2D0_INCSR0_8 (CFG_USB_DEVICE | 0x110)
+#define USB2D0_INCSR_16 (CFG_USB_DEVICE | 0x110)
+#define USB2D0_INMAXP_16 (CFG_USB_DEVICE | 0x112)
+#define USB2D0_OUTCSR_16 (CFG_USB_DEVICE | 0x114)
+#define USB2D0_OUTMAXP_16 (CFG_USB_DEVICE | 0x116)
+#define USB2D0_OUTCOUNT0_8 (CFG_USB_DEVICE | 0x11a)
+#define USB2D0_OUTCOUNT_16 (CFG_USB_DEVICE | 0x11a)
+
+/*FIFOs*/
+#define USB2D0_FIFO_0 (CFG_USB_DEVICE | 0x120)
+#define USB2D0_FIFO_1 (CFG_USB_DEVICE | 0x124)
+#define USB2D0_FIFO_2 (CFG_USB_DEVICE | 0x128)
+#define USB2D0_FIFO_3 (CFG_USB_DEVICE | 0x12c)
+
+void usb_dev_init(void);
diff --git a/cpu/ppc4xx/vecnum.h b/cpu/ppc4xx/vecnum.h
index d493a5d..1038975 100644
--- a/cpu/ppc4xx/vecnum.h
+++ b/cpu/ppc4xx/vecnum.h
@@ -69,6 +69,7 @@
#define VECNUM_MS (32 + 0 ) /* MAL SERR */
#define VECNUM_TXDE (32 + 1 ) /* MAL TXDE */
#define VECNUM_RXDE (32 + 2 ) /* MAL RXDE */
+#define VECNUM_USBDEV (32 + 23) /* USB 1.1/USB 2.0 Device */
#define VECNUM_ETH0 (32 + 28) /* Ethernet 0 interrupt status */
#define VECNUM_EWU0 (32 + 29) /* Ethernet 0 wakeup */
generated by cgit v1.1 at 2024-11-25 14:03:05 +0000