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-rw-r--r--cpu/mpc8220/Makefile5
-rw-r--r--cpu/mpc8220/cpu_init.c10
-rw-r--r--cpu/mpc8220/dramSetup.c20
-rw-r--r--cpu/mpc8220/serial.c131
-rw-r--r--cpu/mpc8220/speed.c58
-rw-r--r--cpu/mpc8220/start.S1
-rw-r--r--cpu/mpc8220/uart.c5
7 files changed, 186 insertions, 44 deletions
diff --git a/cpu/mpc8220/Makefile b/cpu/mpc8220/Makefile
index e64964b..8b9979d 100644
--- a/cpu/mpc8220/Makefile
+++ b/cpu/mpc8220/Makefile
@@ -27,8 +27,9 @@ LIB = lib$(CPU).a
START = start.o
ASOBJS = io.o fec_dma_tasks.o
-OBJS = i2c.o traps.o cpu.o cpu_init.o fec.o dramSetup.o interrupts.o \
- loadtask.o uart.o speed.o
+OBJS = cpu.o cpu_init.o dramSetup.o fec.o i2c.o \
+ interrupts.o loadtask.o serial.o speed.o \
+ traps.o uart.o
all: .depend $(START) $(ASOBJS) $(LIB)
diff --git a/cpu/mpc8220/cpu_init.c b/cpu/mpc8220/cpu_init.c
index 09b23ee..a1e2f65 100644
--- a/cpu/mpc8220/cpu_init.c
+++ b/cpu/mpc8220/cpu_init.c
@@ -55,7 +55,11 @@ void cpu_init_f (void)
*/
#if defined (CFG_CS0_BASE)
flexbus->csar0 = CFG_CS0_BASE;
+
+/* Sorcery-C can hang-up after CTRL reg initialization */
+#if defined (CFG_CS0_CTRL)
flexbus->cscr0 = CFG_CS0_CTRL;
+#endif
flexbus->csmr0 = ((CFG_CS0_MASK - 1) & 0xffff0000) | 1;
__asm__ volatile ("sync");
#endif
@@ -97,15 +101,15 @@ void cpu_init_f (void)
/* This section of the code cannot place in cpu_init_r(),
it will cause the system to hang */
/* enable timebase */
- xlbarb->config = 0x00002000;
-
xlbarb->addrTenTimeOut = 0x1000;
xlbarb->dataTenTimeOut = 0x1000;
xlbarb->busActTimeOut = 0x2000;
+ xlbarb->config = 0x00002000;
+
/* Master Priority Enable */
- xlbarb->mastPriEn = 0x1f;
xlbarb->mastPriority = 0;
+ xlbarb->mastPriEn = 0x1f;
}
/*
diff --git a/cpu/mpc8220/dramSetup.c b/cpu/mpc8220/dramSetup.c
index 033b719..90a7183 100644
--- a/cpu/mpc8220/dramSetup.c
+++ b/cpu/mpc8220/dramSetup.c
@@ -32,9 +32,9 @@ characteristics to initialize the dram on MPC8220
#include "i2cCore.h"
#include "dramSetup.h"
-#define SPD_SIZE 0x40
-#define DRAM_SPD 0xA2 /* on Board SPD eeprom */
-#define TOTAL_BANK 2
+#define SPD_SIZE CFG_SDRAM_SPD_SIZE
+#define DRAM_SPD (CFG_SDRAM_SPD_I2C_ADDR)<<1 /* on Board SPD eeprom */
+#define TOTAL_BANK CFG_SDRAM_TOTAL_BANKS
int spd_status (volatile i2c8220_t * pi2c, u8 sta_bit, u8 truefalse)
{
@@ -144,7 +144,7 @@ int readSpdData (u8 * spdData)
break;
}
- pi2cReg->adr = 0x90; /* I2C device address */
+ pi2cReg->adr = CFG_I2C_SLAVE<<1;
pi2cReg->cr = I2C_CTL_EN; /* Set Enable */
@@ -569,7 +569,7 @@ u32 dramSetup (void)
cfg_value |= CFG1_SWT2RWP ((type == TYPE_DDR) ? 7 : 2);
/* Set the Read CAS latency. We're going to use a CL of
- * 2 for DDR and SDR.
+ * 2.5 for DDR and 2 SDR.
*/
cfg_value |= CFG1_RLATENCY ((type == TYPE_DDR) ? 7 : 2);
@@ -685,10 +685,14 @@ u32 dramSetup (void)
}
- /* Set up mode value for CAS latency == 2 */
+ /* Set up mode value for CAS latency */
+#if (CFG_SDRAM_CAS_LATENCY==5) /* CL=2.5 */
+ mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) |
+ MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2p5) | MODE_CMD);
+#else
mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) |
MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2) | MODE_CMD);
-
+#endif
asm volatile ("sync");
/* Write Extended Mode - enable DLL */
@@ -698,7 +702,7 @@ u32 dramSetup (void)
memctl->mode = (temp >> 16); /* mode */
asm volatile ("sync");
- /* Write Mode - reset DLL, set CAS latency == 2 */
+ /* Write Mode - reset DLL, set CAS latency */
temp = mode_value | MODE_OPMODE (MODE_OPMODE_RESETDLL);
memctl->mode = (temp >> 16); /* mode */
asm volatile ("sync");
diff --git a/cpu/mpc8220/serial.c b/cpu/mpc8220/serial.c
new file mode 100644
index 0000000..08285b8
--- /dev/null
+++ b/cpu/mpc8220/serial.c
@@ -0,0 +1,131 @@
+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.com.
+ *
+ * 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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc8220.h>
+
+int serial_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+ volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE;
+#endif
+
+ /* Check CPLD Switch 2 whether is external or internal */
+#if defined (CONFIG_EXTUART_CONSOLE)
+ if ((*cpld & 0x02) == 0x02) {
+ gd->bExtUart = 1;
+ return ext_serial_init ();
+ } else
+#endif
+ {
+#if defined(CONFIG_PSC_CONSOLE)
+ gd->bExtUart = 0;
+ return psc_serial_init ();
+#endif
+ }
+
+ return (0);
+}
+
+void serial_putc (const char c)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ ext_serial_putc (c);
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ psc_serial_putc (c);
+#endif
+ }
+}
+
+void serial_puts (const char *s)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ ext_serial_puts (s);
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ psc_serial_puts (s);
+#endif
+ }
+}
+
+int serial_getc (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ return ext_serial_getc ();
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ return psc_serial_getc ();
+#endif
+ }
+}
+
+int serial_tstc (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ return ext_serial_tstc ();
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ return psc_serial_tstc ();
+#endif
+ }
+}
+
+void serial_setbrg (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ ext_serial_setbrg ();
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ psc_serial_setbrg ();
+#endif
+ }
+}
diff --git a/cpu/mpc8220/speed.c b/cpu/mpc8220/speed.c
index bd79911..0c3df7c 100644
--- a/cpu/mpc8220/speed.c
+++ b/cpu/mpc8220/speed.c
@@ -42,30 +42,30 @@ int get_clocks (void)
DECLARE_GLOBAL_DATA_PTR;
pllcfg_t bus2core[] = {
- {0x10, 2, 8}, /* 1 */
- {0x08, 2, 4},
- {0x60, 3, 8}, /* 1.5 */
+ {0x02, 2, 8}, /* 1 */
+ {0x01, 2, 4},
+ {0x0C, 3, 8}, /* 1.5 */
{0x00, 3, 4},
- {0xc0, 3, 2},
- {0x28, 4, 4}, /* 2 */
- {0x20, 4, 2},
- {0x88, 5, 4}, /* 2.5 */
- {0x30, 5, 2},
- {0x80, 6, 4}, /* 3 */
- {0x40, 6, 2},
- {0x70, 7, 2}, /* 3.5 */
- {0x50, 8, 2}, /* 4 */
- {0x38, 9, 2}, /* 4.5 */
- {0x58, 10, 2}, /* 5 */
- {0x48, 11, 2}, /* 5.5 */
- {0x68, 12, 2}, /* 6 */
- {0x90, 13, 2}, /* 6.5 */
- {0xa0, 14, 2}, /* 7 */
- {0xb0, 15, 2}, /* 7.5 */
- {0xe0, 16, 2} /* 8 */
+ {0x18, 3, 2},
+ {0x05, 4, 4}, /* 2 */
+ {0x04, 4, 2},
+ {0x11, 5, 4}, /* 2.5 */
+ {0x06, 5, 2},
+ {0x10, 6, 4}, /* 3 */
+ {0x08, 6, 2},
+ {0x0E, 7, 2}, /* 3.5 */
+ {0x0A, 8, 2}, /* 4 */
+ {0x07, 9, 2}, /* 4.5 */
+ {0x0B, 10, 2}, /* 5 */
+ {0x09, 11, 2}, /* 5.5 */
+ {0x0D, 12, 2}, /* 6 */
+ {0x12, 13, 2}, /* 6.5 */
+ {0x14, 14, 2}, /* 7 */
+ {0x16, 15, 2}, /* 7.5 */
+ {0x1C, 16, 2} /* 8 */
};
u32 hid1;
- int i, size;
+ int i, size, pci2bus;
#if !defined(CFG_MPC8220_CLKIN)
#error clock measuring not implemented yet - define CFG_MPC8220_CLKIN
@@ -73,9 +73,12 @@ int get_clocks (void)
gd->inp_clk = CFG_MPC8220_CLKIN;
- /* Bus clock is fixed at 120Mhz for now */
- /* will do dynamic in the future */
- gd->bus_clk = CFG_MPC8220_CLKIN * 4;
+ /* Read XLB to PCI(INP) clock multiplier */
+ pci2bus = (*((volatile u32 *)PCI_REG_PCIGSCR) &
+ PCI_REG_PCIGSCR_PCI2XLB_CLK_MASK)>>PCI_REG_PCIGSCR_PCI2XLB_CLK_BIT;
+
+ /* XLB bus clock */
+ gd->bus_clk = CFG_MPC8220_CLKIN * pci2bus;
/* PCI clock is same as input clock */
gd->pci_clk = CFG_MPC8220_CLKIN;
@@ -88,14 +91,13 @@ int get_clocks (void)
asm volatile ("mfspr %0, 1009":"=r" (hid1):);
size = sizeof (bus2core) / sizeof (pllcfg_t);
- hid1 >>= 24;
+
+ hid1 >>= 27;
for (i = 0; i < size; i++)
if (hid1 == bus2core[i].hid1) {
gd->cpu_clk = (bus2core[i].multi * gd->bus_clk) >> 1;
- /* Input Multiplier is determined by MPLL,
- hardcoded for now at 16 */
- gd->vco_clk = gd->pci_clk * 16;
+ gd->vco_clk = CFG_MPC8220_SYSPLL_VCO_MULTIPLIER * (gd->pci_clk * bus2core[i].vco_div)/2;
break;
}
diff --git a/cpu/mpc8220/start.S b/cpu/mpc8220/start.S
index 6072374..c5d2388 100644
--- a/cpu/mpc8220/start.S
+++ b/cpu/mpc8220/start.S
@@ -111,6 +111,7 @@ boot_warm:
/* MBAR is mirrored into the MBAR SPR */
mtspr MBAR,r3
+ mtspr SPRN_SPRG7W,r3
lis r4, CFG_DEFAULT_MBAR@h
stw r3, 0(r4)
#endif /* CFG_DEFAULT_MBAR */
diff --git a/cpu/mpc8220/uart.c b/cpu/mpc8220/uart.c
index fcf947d..4ff8ccb 100644
--- a/cpu/mpc8220/uart.c
+++ b/cpu/mpc8220/uart.c
@@ -47,8 +47,7 @@ int psc_serial_init (void)
/* write to CSR: RX/TX baud rate from timers */
psc->sr_csr = 0xdd000000;
- psc->mr1_2 = PSC_MR1_BITS_CHAR_8 | PSC_MR1_NO_PARITY | PSC_MR1_RX_RTS;
- psc->mr1_2 = PSC_MR2_STOP_BITS_1 | PSC_MR2_TX_CTS;
+ psc->mr1_2 = PSC_MR1_BITS_CHAR_8 | PSC_MR1_NO_PARITY | PSC_MR2_STOP_BITS_1;
/* Setting up BaudRate */
counter = ((gd->bus_clk / gd->baudrate)) >> 5;
@@ -77,7 +76,7 @@ void psc_serial_putc (const char c)
serial_putc ('\r');
/* Wait for last character to go. */
- while (!(psc->sr_csr & PSC_SR_TXEMT));
+ while (!(psc->sr_csr & PSC_SR_TXRDY));
psc->xmitbuf[0] = c;
}
generated by cgit v1.1 at 2024-11-24 23:46:41 +0000