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-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/fsl_law.c70
-rw-r--r--drivers/net/rtl8139.c23
-rw-r--r--drivers/net/tsec.c117
-rw-r--r--drivers/net/tsec.h8
-rw-r--r--drivers/qe/uec.c112
-rw-r--r--drivers/qe/uec_phy.c61
-rw-r--r--drivers/spi/Makefile46
-rw-r--r--drivers/spi/mpc8xxx_spi.c143
9 files changed, 499 insertions, 82 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 78cec21..67521720 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -28,6 +28,7 @@ LIB := $(obj)libmisc.a
COBJS-y += ali512x.o
COBJS-y += ns87308.o
COBJS-y += status_led.o
+COBJS-$(CONFIG_FSL_LAW) += fsl_law.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/drivers/misc/fsl_law.c b/drivers/misc/fsl_law.c
new file mode 100644
index 0000000..8bdf5a7
--- /dev/null
+++ b/drivers/misc/fsl_law.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <asm/fsl_law.h>
+#include <asm/io.h>
+
+#define LAWAR_EN 0x80000000
+
+void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
+{
+ volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08);
+ volatile u32 *lawbar = base + 8 * idx;
+ volatile u32 *lawar = base + 8 * idx + 2;
+
+ out_be32(lawbar, addr >> 12);
+ out_be32(lawar, LAWAR_EN | ((u32)id << 20) | (u32)sz);
+
+ return ;
+}
+
+void disable_law(u8 idx)
+{
+ volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08);
+ volatile u32 *lawbar = base + 8 * idx;
+ volatile u32 *lawar = base + 8 * idx + 2;
+
+ out_be32(lawar, 0);
+ out_be32(lawbar, 0);
+
+ return;
+}
+
+void init_laws(void)
+{
+ int i;
+ u8 law_idx = 0;
+
+ for (i = 0; i < num_law_entries; i++) {
+ if (law_table[i].index != -1)
+ law_idx = law_table[i].index;
+
+ set_law(law_idx++, law_table[i].addr,
+ law_table[i].size, law_table[i].trgt_id);
+ }
+
+ return ;
+}
diff --git a/drivers/net/rtl8139.c b/drivers/net/rtl8139.c
index 4c24805..097f684 100644
--- a/drivers/net/rtl8139.c
+++ b/drivers/net/rtl8139.c
@@ -80,10 +80,7 @@
#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
defined(CONFIG_RTL8139)
-#define TICKS_PER_SEC CFG_HZ
-#define TICKS_PER_MS (TICKS_PER_SEC/1000)
-
-#define RTL_TIMEOUT (1*TICKS_PER_SEC)
+#define RTL_TIMEOUT 100000
#define ETH_FRAME_LEN 1514
#define ETH_ALEN 6
@@ -392,6 +389,7 @@ static void rtl_reset(struct eth_device *dev)
#ifdef DEBUG_RX
printf("rx ring address is %X\n",(unsigned long)rx_ring);
#endif
+ flush_cache((unsigned long)rx_ring, RX_BUF_LEN);
outl(phys_to_bus((int)rx_ring), ioaddr + RxBuf);
/* If we add multicast support, the MAR0 register would have to be
@@ -414,9 +412,10 @@ static void rtl_reset(struct eth_device *dev)
static int rtl_transmit(struct eth_device *dev, volatile void *packet, int length)
{
- unsigned int status, to;
+ unsigned int status;
unsigned long txstatus;
unsigned int len = length;
+ int i = 0;
ioaddr = dev->iobase;
@@ -432,12 +431,11 @@ static int rtl_transmit(struct eth_device *dev, volatile void *packet, int lengt
tx_buffer[len++] = '\0';
}
+ flush_cache((unsigned long)tx_buffer, length);
outl(phys_to_bus((int)tx_buffer), ioaddr + TxAddr0 + cur_tx*4);
outl(((TX_FIFO_THRESH<<11) & 0x003f0000) | len,
ioaddr + TxStatus0 + cur_tx*4);
- to = currticks() + RTL_TIMEOUT;
-
do {
status = inw(ioaddr + IntrStatus);
/* Only acknlowledge interrupt sources we can properly handle
@@ -445,7 +443,8 @@ static int rtl_transmit(struct eth_device *dev, volatile void *packet, int lengt
* rtl_poll() function. */
outw(status & (TxOK | TxErr | PCIErr), ioaddr + IntrStatus);
if ((status & (TxOK | TxErr | PCIErr)) != 0) break;
- } while (currticks() < to);
+ udelay(10);
+ } while (i++ < RTL_TIMEOUT);
txstatus = inl(ioaddr + TxStatus0 + cur_tx*4);
@@ -458,8 +457,8 @@ static int rtl_transmit(struct eth_device *dev, volatile void *packet, int lengt
return length;
} else {
#ifdef DEBUG_TX
- printf("tx timeout/error (%d ticks), status %hX txstatus %X\n",
- currticks()-to, status, txstatus);
+ printf("tx timeout/error (%d usecs), status %hX txstatus %X\n",
+ 10*i, status, txstatus);
#endif
rtl_reset(dev);
@@ -489,7 +488,8 @@ static int rtl_poll(struct eth_device *dev)
#endif
ring_offs = cur_rx % RX_BUF_LEN;
- rx_status = *(unsigned int*)KSEG1ADDR((rx_ring + ring_offs));
+ /* ring_offs is guaranteed being 4-byte aligned */
+ rx_status = le32_to_cpu(*(unsigned int *)(rx_ring + ring_offs));
rx_size = rx_status >> 16;
rx_status &= 0xffff;
@@ -519,6 +519,7 @@ static int rtl_poll(struct eth_device *dev)
printf("rx packet %d bytes", rx_size-4);
#endif
}
+ flush_cache((unsigned long)rx_ring, RX_BUF_LEN);
cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
outw(cur_rx - 16, ioaddr + RxBufPtr);
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index 25392f6..e91d9ea 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -241,10 +241,9 @@ int tsec_init(struct eth_device *dev, bd_t * bd)
* It will wait for the write to be done (or for a timeout to
* expire) before exiting
*/
-void write_phy_reg(struct tsec_private *priv, uint regnum, uint value)
+void write_any_phy_reg(struct tsec_private *priv, uint phyid, uint regnum, uint value)
{
volatile tsec_t *regbase = priv->phyregs;
- uint phyid = priv->phyaddr;
int timeout = 1000000;
regbase->miimadd = (phyid << 8) | regnum;
@@ -255,17 +254,19 @@ void write_phy_reg(struct tsec_private *priv, uint regnum, uint value)
while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
}
+/* #define to provide old write_phy_reg functionality without duplicating code */
+#define write_phy_reg(priv, regnum, value) write_any_phy_reg(priv,priv->phyaddr,regnum,value)
+
/* Reads register regnum on the device's PHY through the
* registers specified in priv. It lowers and raises the read
* command, and waits for the data to become valid (miimind
* notvalid bit cleared), and the bus to cease activity (miimind
* busy bit cleared), and then returns the value
*/
-uint read_phy_reg(struct tsec_private *priv, uint regnum)
+uint read_any_phy_reg(struct tsec_private *priv, uint phyid, uint regnum)
{
uint value;
volatile tsec_t *regbase = priv->phyregs;
- uint phyid = priv->phyaddr;
/* Put the address of the phy, and the register
* number into MIIMADD */
@@ -288,6 +289,9 @@ uint read_phy_reg(struct tsec_private *priv, uint regnum)
return value;
}
+/* #define to provide old read_phy_reg functionality without duplicating code */
+#define read_phy_reg(priv,regnum) read_any_phy_reg(priv,priv->phyaddr,regnum)
+
/* Discover which PHY is attached to the device, and configure it
* properly. If the PHY is not recognized, then return 0
* (failure). Otherwise, return 1
@@ -571,6 +575,63 @@ uint mii_parse_88E1011_psr(uint mii_reg, struct tsec_private * priv)
return 0;
}
+/* Parse the RTL8211B's status register for speed and duplex
+ * information
+ */
+uint mii_parse_RTL8211B_sr(uint mii_reg, struct tsec_private * priv)
+{
+ uint speed;
+
+ mii_reg = read_phy_reg(priv, MIIM_RTL8211B_PHY_STATUS);
+ if ((mii_reg & MIIM_RTL8211B_PHYSTAT_LINK) &&
+ !(mii_reg & MIIM_RTL8211B_PHYSTAT_SPDDONE)) {
+ int i = 0;
+
+ puts("Waiting for PHY realtime link");
+ while (!(mii_reg & MIIM_RTL8211B_PHYSTAT_SPDDONE)) {
+ /* Timeout reached ? */
+ if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+ puts(" TIMEOUT !\n");
+ priv->link = 0;
+ break;
+ }
+
+ if ((i++ % 1000) == 0) {
+ putc('.');
+ }
+ udelay(1000); /* 1 ms */
+ mii_reg = read_phy_reg(priv, MIIM_RTL8211B_PHY_STATUS);
+ }
+ puts(" done\n");
+ udelay(500000); /* another 500 ms (results in faster booting) */
+ } else {
+ if (mii_reg & MIIM_RTL8211B_PHYSTAT_LINK)
+ priv->link = 1;
+ else
+ priv->link = 0;
+ }
+
+ if (mii_reg & MIIM_RTL8211B_PHYSTAT_DUPLEX)
+ priv->duplexity = 1;
+ else
+ priv->duplexity = 0;
+
+ speed = (mii_reg & MIIM_RTL8211B_PHYSTAT_SPEED);
+
+ switch (speed) {
+ case MIIM_RTL8211B_PHYSTAT_GBIT:
+ priv->speed = 1000;
+ break;
+ case MIIM_RTL8211B_PHYSTAT_100:
+ priv->speed = 100;
+ break;
+ default:
+ priv->speed = 10;
+ }
+
+ return 0;
+}
+
/* Parse the cis8201's status register for speed and duplex
* information
*/
@@ -1361,6 +1422,33 @@ struct phy_info phy_info_dp83865 = {
},
};
+struct phy_info phy_info_rtl8211b = {
+ 0x001cc91,
+ "RealTek RTL8211B",
+ 4,
+ (struct phy_cmd[]){ /* config */
+ /* Reset and configure the PHY */
+ {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
+ {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
+ {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
+ {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
+ {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* startup */
+ /* Status is read once to clear old link state */
+ {MIIM_STATUS, miim_read, NULL},
+ /* Auto-negotiate */
+ {MIIM_STATUS, miim_read, &mii_parse_sr},
+ /* Read the status */
+ {MIIM_RTL8211B_PHY_STATUS, miim_read, &mii_parse_RTL8211B_sr},
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* shutdown */
+ {miim_end,}
+ },
+};
+
struct phy_info *phy_info[] = {
&phy_info_cis8204,
&phy_info_cis8201,
@@ -1374,6 +1462,7 @@ struct phy_info *phy_info[] = {
&phy_info_lxt971,
&phy_info_VSC8244,
&phy_info_dp83865,
+ &phy_info_rtl8211b,
&phy_info_generic,
NULL
};
@@ -1497,18 +1586,6 @@ static void relocate_cmds(void)
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
&& !defined(BITBANGMII)
-struct tsec_private *get_priv_for_phy(unsigned char phyaddr)
-{
- int i;
-
- for (i = 0; i < MAXCONTROLLERS; i++) {
- if (privlist[i]->phyaddr == phyaddr)
- return privlist[i];
- }
-
- return NULL;
-}
-
/*
* Read a MII PHY register.
*
@@ -1519,14 +1596,14 @@ static int tsec_miiphy_read(char *devname, unsigned char addr,
unsigned char reg, unsigned short *value)
{
unsigned short ret;
- struct tsec_private *priv = get_priv_for_phy(addr);
+ struct tsec_private *priv = privlist[0];
if (NULL == priv) {
printf("Can't read PHY at address %d\n", addr);
return -1;
}
- ret = (unsigned short)read_phy_reg(priv, reg);
+ ret = (unsigned short)read_any_phy_reg(priv, addr, reg);
*value = ret;
return 0;
@@ -1541,14 +1618,14 @@ static int tsec_miiphy_read(char *devname, unsigned char addr,
static int tsec_miiphy_write(char *devname, unsigned char addr,
unsigned char reg, unsigned short value)
{
- struct tsec_private *priv = get_priv_for_phy(addr);
+ struct tsec_private *priv = privlist[0];
if (NULL == priv) {
printf("Can't write PHY at address %d\n", addr);
return -1;
}
- write_phy_reg(priv, reg, value);
+ write_any_phy_reg(priv, addr, reg, value);
return 0;
}
diff --git a/drivers/net/tsec.h b/drivers/net/tsec.h
index 2f0092a..d4dc15a 100644
--- a/drivers/net/tsec.h
+++ b/drivers/net/tsec.h
@@ -184,6 +184,14 @@
#define MIIM_88E1145_PHY_PAGE 29
#define MIIM_88E1145_PHY_CAL_OV 30
+/* RTL8211B PHY Status Register */
+#define MIIM_RTL8211B_PHY_STATUS 0x11
+#define MIIM_RTL8211B_PHYSTAT_SPEED 0xc000
+#define MIIM_RTL8211B_PHYSTAT_GBIT 0x8000
+#define MIIM_RTL8211B_PHYSTAT_100 0x4000
+#define MIIM_RTL8211B_PHYSTAT_DUPLEX 0x2000
+#define MIIM_RTL8211B_PHYSTAT_SPDDONE 0x0800
+#define MIIM_RTL8211B_PHYSTAT_LINK 0x0400
/* DM9161 Control register values */
#define MIIM_DM9161_CR_STOP 0x0400
diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c
index 6cb25bf..55f37cb 100644
--- a/drivers/qe/uec.c
+++ b/drivers/qe/uec.c
@@ -40,8 +40,13 @@ static uec_info_t eth1_uec_info = {
.tx_clock = CFG_UEC1_TX_CLK,
.eth_type = CFG_UEC1_ETH_TYPE,
},
+#if (CFG_UEC1_ETH_TYPE == FAST_ETH)
+ .num_threads_tx = UEC_NUM_OF_THREADS_1,
+ .num_threads_rx = UEC_NUM_OF_THREADS_1,
+#else
.num_threads_tx = UEC_NUM_OF_THREADS_4,
.num_threads_rx = UEC_NUM_OF_THREADS_4,
+#endif
.riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.tx_bd_ring_len = 16,
@@ -58,8 +63,13 @@ static uec_info_t eth2_uec_info = {
.tx_clock = CFG_UEC2_TX_CLK,
.eth_type = CFG_UEC2_ETH_TYPE,
},
+#if (CFG_UEC2_ETH_TYPE == FAST_ETH)
+ .num_threads_tx = UEC_NUM_OF_THREADS_1,
+ .num_threads_rx = UEC_NUM_OF_THREADS_1,
+#else
.num_threads_tx = UEC_NUM_OF_THREADS_4,
.num_threads_rx = UEC_NUM_OF_THREADS_4,
+#endif
.riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.tx_bd_ring_len = 16,
@@ -68,7 +78,6 @@ static uec_info_t eth2_uec_info = {
.enet_interface = CFG_UEC2_INTERFACE_MODE,
};
#endif
-
#ifdef CONFIG_UEC_ETH3
static uec_info_t eth3_uec_info = {
.uf_info = {
@@ -77,8 +86,13 @@ static uec_info_t eth3_uec_info = {
.tx_clock = CFG_UEC3_TX_CLK,
.eth_type = CFG_UEC3_ETH_TYPE,
},
+#if (CFG_UEC3_ETH_TYPE == FAST_ETH)
+ .num_threads_tx = UEC_NUM_OF_THREADS_1,
+ .num_threads_rx = UEC_NUM_OF_THREADS_1,
+#else
.num_threads_tx = UEC_NUM_OF_THREADS_4,
.num_threads_rx = UEC_NUM_OF_THREADS_4,
+#endif
.riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
.tx_bd_ring_len = 16,
@@ -87,6 +101,29 @@ static uec_info_t eth3_uec_info = {
.enet_interface = CFG_UEC3_INTERFACE_MODE,
};
#endif
+#ifdef CONFIG_UEC_ETH4
+static uec_info_t eth4_uec_info = {
+ .uf_info = {
+ .ucc_num = CFG_UEC4_UCC_NUM,
+ .rx_clock = CFG_UEC4_RX_CLK,
+ .tx_clock = CFG_UEC4_TX_CLK,
+ .eth_type = CFG_UEC4_ETH_TYPE,
+ },
+#if (CFG_UEC4_ETH_TYPE == FAST_ETH)
+ .num_threads_tx = UEC_NUM_OF_THREADS_1,
+ .num_threads_rx = UEC_NUM_OF_THREADS_1,
+#else
+ .num_threads_tx = UEC_NUM_OF_THREADS_4,
+ .num_threads_rx = UEC_NUM_OF_THREADS_4,
+#endif
+ .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
+ .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
+ .tx_bd_ring_len = 16,
+ .rx_bd_ring_len = 16,
+ .phy_address = CFG_UEC4_PHY_ADDR,
+ .enet_interface = CFG_UEC4_INTERFACE_MODE,
+};
+#endif
static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
{
@@ -475,6 +512,8 @@ static int init_phy(struct eth_device *dev)
uec->mii_info = mii_info;
+ qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
+
if (init_mii_management_configuration(umii_regs)) {
printf("%s: The MII Bus is stuck!", dev->name);
err = -1;
@@ -581,21 +620,12 @@ static void adjust_link(struct eth_device *dev)
static void phy_change(struct eth_device *dev)
{
uec_private_t *uec = (uec_private_t *)dev->priv;
- uec_t *uec_regs;
- int result = 0;
-
- uec_regs = uec->uec_regs;
-
- /* Delay 5s to give the PHY a chance to change the register state */
- udelay(5000000);
/* Update the link, speed, duplex */
- result = uec->mii_info->phyinfo->read_status(uec->mii_info);
+ uec->mii_info->phyinfo->read_status(uec->mii_info);
/* Adjust the interface according to speed */
- if ((0 == result) || (uec->mii_info->link == 0)) {
- adjust_link(dev);
- }
+ adjust_link(dev);
}
static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
@@ -1120,27 +1150,59 @@ static int uec_startup(uec_private_t *uec)
static int uec_init(struct eth_device* dev, bd_t *bd)
{
uec_private_t *uec;
- int err;
+ int err, i;
+ struct phy_info *curphy;
uec = (uec_private_t *)dev->priv;
if (uec->the_first_run == 0) {
- /* Set up the MAC address */
- if (dev->enetaddr[0] & 0x01) {
- printf("%s: MacAddress is multcast address\n",
- __FUNCTION__);
- return -1;
+ err = init_phy(dev);
+ if (err) {
+ printf("%s: Cannot initialize PHY, aborting.\n",
+ dev->name);
+ return err;
+ }
+
+ curphy = uec->mii_info->phyinfo;
+
+ if (curphy->config_aneg) {
+ err = curphy->config_aneg(uec->mii_info);
+ if (err) {
+ printf("%s: Can't negotiate PHY\n", dev->name);
+ return err;
+ }
}
- uec_set_mac_address(uec, dev->enetaddr);
+
+ /* Give PHYs up to 5 sec to report a link */
+ i = 50;
+ do {
+ err = curphy->read_status(uec->mii_info);
+ udelay(100000);
+ } while (((i-- > 0) && !uec->mii_info->link) || err);
+
+ if (err || i <= 0)
+ printf("warning: %s: timeout on PHY link\n", dev->name);
+
uec->the_first_run = 1;
}
+ /* Set up the MAC address */
+ if (dev->enetaddr[0] & 0x01) {
+ printf("%s: MacAddress is multcast address\n",
+ __FUNCTION__);
+ return -1;
+ }
+ uec_set_mac_address(uec, dev->enetaddr);
+
+
err = uec_open(uec, COMM_DIR_RX_AND_TX);
if (err) {
printf("%s: cannot enable UEC device\n", dev->name);
return -1;
}
+ phy_change(dev);
+
return (uec->mii_info->link ? 0 : -1);
}
@@ -1262,6 +1324,10 @@ int uec_initialize(int index)
#ifdef CONFIG_UEC_ETH3
uec_info = &eth3_uec_info;
#endif
+ } else if (index == 3) {
+#ifdef CONFIG_UEC_ETH4
+ uec_info = &eth4_uec_info;
+#endif
} else {
printf("%s: index is illegal.\n", __FUNCTION__);
return -EINVAL;
@@ -1289,14 +1355,6 @@ int uec_initialize(int index)
return err;
}
- err = init_phy(dev);
- if (err) {
- printf("%s: Cannot initialize PHY, aborting.\n", dev->name);
- return err;
- }
-
- phy_change(dev);
-
return 1;
}
#endif /* CONFIG_QE */
diff --git a/drivers/qe/uec_phy.c b/drivers/qe/uec_phy.c
index ca6faa6..c549b6b 100644
--- a/drivers/qe/uec_phy.c
+++ b/drivers/qe/uec_phy.c
@@ -28,7 +28,6 @@
#if defined(CONFIG_QE)
-#define UEC_VERBOSE_DEBUG
#define ugphy_printk(format, arg...) \
printf(format "\n", ## arg)
@@ -77,11 +76,10 @@ void uec_write_phy_reg (struct eth_device *dev, int mii_id, int regnum, int valu
/* Setting up the MII Mangement Control Register with the value */
out_be32 (&ug_regs->miimcon, (u32) value);
+ sync();
/* Wait till MII management write is complete */
while ((in_be32 (&ug_regs->miimind)) & MIIMIND_BUSY);
-
- udelay (100000);
}
/* Reads from register regnum in the PHY for device dev, */
@@ -101,20 +99,21 @@ int uec_read_phy_reg (struct eth_device *dev, int mii_id, int regnum)
tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg;
out_be32 (&ug_regs->miimadd, tmp_reg);
- /* Perform an MII management read cycle */
+ /* clear MII management command cycle */
out_be32 (&ug_regs->miimcom, 0);
+ sync();
+
+ /* Perform an MII management read cycle */
out_be32 (&ug_regs->miimcom, MIIMCOM_READ_CYCLE);
/* Wait till MII management write is complete */
while ((in_be32 (&ug_regs->miimind)) &
(MIIMIND_NOT_VALID | MIIMIND_BUSY));
- udelay (100000);
-
/* Read MII management status */
value = (u16) in_be32 (&ug_regs->miimstat);
if (value == 0xffff)
- ugphy_warn
+ ugphy_vdbg
("read wrong value : mii_id %d,mii_reg %d, base %08x",
mii_id, mii_reg, (u32) & (ug_regs->miimcfg));
@@ -270,20 +269,38 @@ static int genmii_update_link (struct uec_mii_info *mii_info)
{
u16 status;
- /* Do a fake read */
+ /* Status is read once to clear old link state */
phy_read (mii_info, PHY_BMSR);
- /* Read link and autonegotiation status */
- status = phy_read (mii_info, PHY_BMSR);
- if ((status & PHY_BMSR_LS) == 0)
- mii_info->link = 0;
- else
+ /*
+ * Wait if the link is up, and autonegotiation is in progress
+ * (ie - we're capable and it's not done)
+ */
+ status = phy_read(mii_info, PHY_BMSR);
+ if ((status & PHY_BMSR_LS) && (status & PHY_BMSR_AUTN_ABLE)
+ && !(status & PHY_BMSR_AUTN_COMP)) {
+ int i = 0;
+
+ while (!(status & PHY_BMSR_AUTN_COMP)) {
+ /*
+ * Timeout reached ?
+ */
+ if (i > UGETH_AN_TIMEOUT) {
+ mii_info->link = 0;
+ return 0;
+ }
+
+ udelay(1000); /* 1 ms */
+ status = phy_read(mii_info, PHY_BMSR);
+ }
mii_info->link = 1;
-
- /* If we are autonegotiating, and not done,
- * return an error */
- if (mii_info->autoneg && !(status & PHY_BMSR_AUTN_COMP))
- return -EAGAIN;
+ udelay(500000); /* another 500 ms (results in faster booting) */
+ } else {
+ if (status & PHY_BMSR_LS)
+ mii_info->link = 1;
+ else
+ mii_info->link = 0;
+ }
return 0;
}
@@ -389,16 +406,12 @@ static int dm9161_init (struct uec_mii_info *mii_info)
/* PHY and MAC connect */
phy_write (mii_info, PHY_BMCR, phy_read (mii_info, PHY_BMCR) &
~PHY_BMCR_ISO);
-#ifdef CONFIG_RMII_MODE
- phy_write (mii_info, MII_DM9161_SCR, MII_DM9161_SCR_RMII_INIT);
-#else
+
phy_write (mii_info, MII_DM9161_SCR, MII_DM9161_SCR_INIT);
-#endif
+
config_genmii_advert (mii_info);
/* Start/restart aneg */
genmii_config_aneg (mii_info);
- /* Delay to wait the aneg compeleted */
- udelay (3000000);
return 0;
}
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
new file mode 100644
index 0000000..0b7a2df
--- /dev/null
+++ b/drivers/spi/Makefile
@@ -0,0 +1,46 @@
+#
+# (C) Copyright 2000-2007
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB := $(obj)libspi.a
+
+COBJS-y += mpc8xxx_spi.o
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+all: $(LIB)
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c
new file mode 100644
index 0000000..a3d1c95
--- /dev/null
+++ b/drivers/spi/mpc8xxx_spi.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2006 Ben Warren, Qstreams Networks Inc.
+ * With help from the common/soft_spi and cpu/mpc8260 drivers
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <spi.h>
+#include <asm/mpc8xxx_spi.h>
+
+#ifdef CONFIG_HARD_SPI
+
+#define SPI_EV_NE (0x80000000 >> 22) /* Receiver Not Empty */
+#define SPI_EV_NF (0x80000000 >> 23) /* Transmitter Not Full */
+
+#define SPI_MODE_LOOP (0x80000000 >> 1) /* Loopback mode */
+#define SPI_MODE_REV (0x80000000 >> 5) /* Reverse mode - MSB first */
+#define SPI_MODE_MS (0x80000000 >> 6) /* Always master */
+#define SPI_MODE_EN (0x80000000 >> 7) /* Enable interface */
+
+#define SPI_TIMEOUT 1000
+
+void spi_init(void)
+{
+ volatile spi8xxx_t *spi = &((immap_t *) (CFG_IMMR))->spi;
+
+ /*
+ * SPI pins on the MPC83xx are not muxed, so all we do is initialize
+ * some registers
+ */
+ spi->mode = SPI_MODE_REV | SPI_MODE_MS | SPI_MODE_EN;
+ spi->mode = (spi->mode & 0xfff0ffff) | (1 << 16); /* Use SYSCLK / 8
+ (16.67MHz typ.) */
+ spi->event = 0xffffffff; /* Clear all SPI events */
+ spi->mask = 0x00000000; /* Mask all SPI interrupts */
+ spi->com = 0; /* LST bit doesn't do anything, so disregard */
+}
+
+int spi_xfer(spi_chipsel_type chipsel, int bitlen, uchar *dout, uchar *din)
+{
+ volatile spi8xxx_t *spi = &((immap_t *) (CFG_IMMR))->spi;
+ unsigned int tmpdout, tmpdin, event;
+ int numBlks = bitlen / 32 + (bitlen % 32 ? 1 : 0);
+ int tm, isRead = 0;
+ unsigned char charSize = 32;
+
+ debug("spi_xfer: chipsel %08X dout %08X din %08X bitlen %d\n",
+ (int)chipsel, *(uint *) dout, *(uint *) din, bitlen);
+
+ if (chipsel != NULL)
+ (*chipsel) (1); /* select the target chip */
+
+ spi->event = 0xffffffff; /* Clear all SPI events */
+
+ /* handle data in 32-bit chunks */
+ while (numBlks--) {
+ tmpdout = 0;
+ charSize = (bitlen >= 32 ? 32 : bitlen);
+
+ /* Shift data so it's msb-justified */
+ tmpdout = *(u32 *) dout >> (32 - charSize);
+
+ /* The LEN field of the SPMODE register is set as follows:
+ *
+ * Bit length setting
+ * len <= 4 3
+ * 4 < len <= 16 len - 1
+ * len > 16 0
+ */
+
+ if (bitlen <= 16) {
+ if (bitlen <= 4)
+ spi->mode = (spi->mode & 0xff0fffff) |
+ (3 << 20);
+ else
+ spi->mode = (spi->mode & 0xff0fffff) |
+ ((bitlen - 1) << 20);
+ } else {
+ spi->mode = (spi->mode & 0xff0fffff);
+ /* Set up the next iteration if sending > 32 bits */
+ bitlen -= 32;
+ dout += 4;
+ }
+
+ spi->tx = tmpdout; /* Write the data out */
+ debug("*** spi_xfer: ... %08x written\n", tmpdout);
+
+ /*
+ * Wait for SPI transmit to get out
+ * or time out (1 second = 1000 ms)
+ * The NE event must be read and cleared first
+ */
+ for (tm = 0, isRead = 0; tm < SPI_TIMEOUT; ++tm) {
+ event = spi->event;
+ if (event & SPI_EV_NE) {
+ tmpdin = spi->rx;
+ spi->event |= SPI_EV_NE;
+ isRead = 1;
+
+ *(u32 *) din = (tmpdin << (32 - charSize));
+ if (charSize == 32) {
+ /* Advance output buffer by 32 bits */
+ din += 4;
+ }
+ }
+ /*
+ * Only bail when we've had both NE and NF events.
+ * This will cause timeouts on RO devices, so maybe
+ * in the future put an arbitrary delay after writing
+ * the device. Arbitrary delays suck, though...
+ */
+ if (isRead && (event & SPI_EV_NF))
+ break;
+ }
+ if (tm >= SPI_TIMEOUT)
+ puts("*** spi_xfer: Time out during SPI transfer");
+
+ debug("*** spi_xfer: transfer ended. Value=%08x\n", tmpdin);
+ }
+
+ if (chipsel != NULL)
+ (*chipsel) (0); /* deselect the target chip */
+
+ return 0;
+}
+#endif /* CONFIG_HARD_SPI */
generated by cgit v1.1 at 2024-12-28 19:25:53 +0000