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-rw-r--r--drivers/i2c/fsl_i2c.c105
-rw-r--r--drivers/mtd/nand/davinci_nand.c3
-rw-r--r--drivers/qe/uccf.h1
-rw-r--r--drivers/qe/uec.h4
-rw-r--r--drivers/qe/uec_phy.c15
5 files changed, 88 insertions, 40 deletions
diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c
index 47bbf79..2241990 100644
--- a/drivers/i2c/fsl_i2c.c
+++ b/drivers/i2c/fsl_i2c.c
@@ -100,29 +100,9 @@ static const struct fsl_i2c *i2c_dev[2] = {
*/
static const struct {
unsigned short divider;
-#ifdef __PPC__
- u8 dfsr;
-#endif
u8 fdr;
} fsl_i2c_speed_map[] = {
-#ifdef __PPC__
- {160, 1, 32}, {192, 1, 33}, {224, 1, 34}, {256, 1, 35},
- {288, 1, 0}, {320, 1, 1}, {352, 6, 1}, {384, 1, 2}, {416, 6, 2},
- {448, 1, 38}, {480, 1, 3}, {512, 1, 39}, {544, 11, 3}, {576, 1, 4},
- {608, 22, 3}, {640, 1, 5}, {672, 32, 3}, {704, 11, 5}, {736, 43, 3},
- {768, 1, 6}, {800, 54, 3}, {832, 11, 6}, {896, 1, 42}, {960, 1, 7},
- {1024, 1, 43}, {1088, 22, 7}, {1152, 1, 8}, {1216, 43, 7}, {1280, 1, 9},
- {1408, 22, 9}, {1536, 1, 10}, {1664, 22, 10}, {1792, 1, 46},
- {1920, 1, 11}, {2048, 1, 47}, {2176, 43, 11}, {2304, 1, 12},
- {2560, 1, 13}, {2816, 43, 13}, {3072, 1, 14}, {3328, 43, 14},
- {3584, 1, 50}, {3840, 1, 15}, {4096, 1, 51}, {4608, 1, 16},
- {5120, 1, 17}, {6144, 1, 18}, {7168, 1, 54}, {7680, 1, 19},
- {8192, 1, 55}, {9216, 1, 20}, {10240, 1, 21}, {12288, 1, 22},
- {14336, 1, 58}, {15360, 1, 23}, {16384, 1, 59}, {18432, 1, 24},
- {20480, 1, 25}, {24576, 1, 26}, {28672, 1, 62}, {30720, 1, 27},
- {32768, 1, 63}, {36864, 1, 28}, {40960, 1, 29}, {49152, 1, 30},
- {61440, 1, 31}, {-1, 1, 31}
-#elif defined(__M68K__)
+#ifdef __M68K__
{20, 32}, {22, 33}, {24, 34}, {26, 35},
{28, 0}, {28, 36}, {30, 1}, {32, 37},
{34, 2}, {36, 38}, {40, 3}, {40, 39},
@@ -158,7 +138,6 @@ static unsigned int set_i2c_bus_speed(const struct fsl_i2c *dev,
unsigned int i2c_clk, unsigned int speed)
{
unsigned short divider = min(i2c_clk / speed, (unsigned short) -1);
- unsigned int i;
/*
* We want to choose an FDR/DFSR that generates an I2C bus speed that
@@ -166,23 +145,72 @@ static unsigned int set_i2c_bus_speed(const struct fsl_i2c *dev,
* want the first divider that is equal to or greater than the
* calculated divider.
*/
+#ifdef __PPC__
+ u8 dfsr, fdr = 0x31; /* Default if no FDR found */
+ /* a, b and dfsr matches identifiers A,B and C respectively in AN2919 */
+ unsigned short a, b, ga, gb;
+ unsigned long c_div, est_div;
+
+#ifdef CONFIG_FSL_I2C_CUSTOM_DFSR
+ dfsr = CONFIG_FSL_I2C_CUSTOM_DFSR;
+#else
+ /* Condition 1: dfsr <= 50/T */
+ dfsr = (5 * (i2c_clk / 1000)) / 100000;
+#endif
+#ifdef CONFIG_FSL_I2C_CUSTOM_FDR
+ fdr = CONFIG_FSL_I2C_CUSTOM_FDR;
+ speed = i2c_clk / divider; /* Fake something */
+#else
+ debug("Requested speed:%d, i2c_clk:%d\n", speed, i2c_clk);
+ if (!dfsr)
+ dfsr = 1;
+
+ est_div = ~0;
+ for (ga = 0x4, a = 10; a <= 30; ga++, a += 2) {
+ for (gb = 0; gb < 8; gb++) {
+ b = 16 << gb;
+ c_div = b * (a + ((3*dfsr)/b)*2);
+ if ((c_div > divider) && (c_div < est_div)) {
+ unsigned short bin_gb, bin_ga;
+
+ est_div = c_div;
+ bin_gb = gb << 2;
+ bin_ga = (ga & 0x3) | ((ga & 0x4) << 3);
+ fdr = bin_gb | bin_ga;
+ speed = i2c_clk / est_div;
+ debug("FDR:0x%.2x, div:%ld, ga:0x%x, gb:0x%x, "
+ "a:%d, b:%d, speed:%d\n",
+ fdr, est_div, ga, gb, a, b, speed);
+ /* Condition 2 not accounted for */
+ debug("Tr <= %d ns\n",
+ (b - 3 * dfsr) * 1000000 /
+ (i2c_clk / 1000));
+ }
+ }
+ if (a == 20)
+ a += 2;
+ if (a == 24)
+ a += 4;
+ }
+ debug("divider:%d, est_div:%ld, DFSR:%d\n", divider, est_div, dfsr);
+ debug("FDR:0x%.2x, speed:%d\n", fdr, speed);
+#endif
+ writeb(dfsr, &dev->dfsrr); /* set default filter */
+ writeb(fdr, &dev->fdr); /* set bus speed */
+#else
+ unsigned int i;
for (i = 0; i < ARRAY_SIZE(fsl_i2c_speed_map); i++)
if (fsl_i2c_speed_map[i].divider >= divider) {
u8 fdr;
-#ifdef __PPC__
- u8 dfsr;
- dfsr = fsl_i2c_speed_map[i].dfsr;
-#endif
+
fdr = fsl_i2c_speed_map[i].fdr;
speed = i2c_clk / fsl_i2c_speed_map[i].divider;
writeb(fdr, &dev->fdr); /* set bus speed */
-#ifdef __PPC__
- writeb(dfsr, &dev->dfsrr); /* set default filter */
-#endif
+
break;
}
-
+#endif
return speed;
}
@@ -223,7 +251,7 @@ i2c_init(int speed, int slaveadd)
#endif
}
-static __inline__ int
+static int
i2c_wait4bus(void)
{
unsigned long long timeval = get_ticks();
@@ -248,6 +276,8 @@ i2c_wait(int write)
csr = readb(&i2c_dev[i2c_bus_num]->sr);
if (!(csr & I2C_SR_MIF))
continue;
+ /* Read again to allow register to stabilise */
+ csr = readb(&i2c_dev[i2c_bus_num]->sr);
writeb(0x0, &i2c_dev[i2c_bus_num]->sr);
@@ -293,9 +323,6 @@ __i2c_write(u8 *data, int length)
{
int i;
- writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_MTX,
- &i2c_dev[i2c_bus_num]->cr);
-
for (i = 0; i < length; i++) {
writeb(data[i], &i2c_dev[i2c_bus_num]->dr);
@@ -326,9 +353,10 @@ __i2c_read(u8 *data, int length)
writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_TXAK,
&i2c_dev[i2c_bus_num]->cr);
- /* Generate stop on last byte */
+ /* Do not generate stop on last byte */
if (i == length - 1)
- writeb(I2C_CR_MEN | I2C_CR_TXAK, &i2c_dev[i2c_bus_num]->cr);
+ writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_MTX,
+ &i2c_dev[i2c_bus_num]->cr);
data[i] = readb(&i2c_dev[i2c_bus_num]->dr);
}
@@ -353,6 +381,9 @@ i2c_read(u8 dev, uint addr, int alen, u8 *data, int length)
writeb(I2C_CR_MEN, &i2c_dev[i2c_bus_num]->cr);
+ if (i2c_wait4bus()) /* Wait until STOP */
+ debug("i2c_read: wait4bus timed out\n");
+
if (i == length)
return 0;
@@ -372,6 +403,8 @@ i2c_write(u8 dev, uint addr, int alen, u8 *data, int length)
}
writeb(I2C_CR_MEN, &i2c_dev[i2c_bus_num]->cr);
+ if (i2c_wait4bus()) /* Wait until STOP */
+ debug("i2c_write: wait4bus timed out\n");
if (i == length)
return 0;
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 37d8b73..eabaf3e 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -202,7 +202,6 @@ static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = {
},
#endif
};
-#endif
static void nand_davinci_4bit_enable_hwecc(struct mtd_info *mtd, int mode)
{
@@ -289,7 +288,6 @@ static int nand_davinci_4bit_calculate_ecc(struct mtd_info *mtd,
static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
uint8_t *read_ecc, uint8_t *calc_ecc)
{
- struct nand_chip *this = mtd->priv;
unsigned short ecc_10bit[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
int i;
unsigned int hw_4ecc[4] = { 0, 0, 0, 0 }, iserror = 0;
@@ -441,6 +439,7 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
return numerrors;
}
+#endif /* CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST */
static int nand_davinci_dev_ready(struct mtd_info *mtd)
{
diff --git a/drivers/qe/uccf.h b/drivers/qe/uccf.h
index 1ff9e1d..2404c6a 100644
--- a/drivers/qe/uccf.h
+++ b/drivers/qe/uccf.h
@@ -25,6 +25,7 @@
#include "common.h"
#include "qe.h"
+#include "asm/immap_qe.h"
/* Fast or Giga ethernet
*/
diff --git a/drivers/qe/uec.h b/drivers/qe/uec.h
index 1568310..febfbce 100644
--- a/drivers/qe/uec.h
+++ b/drivers/qe/uec.h
@@ -23,6 +23,9 @@
#ifndef __UEC_H__
#define __UEC_H__
+#include "qe.h"
+#include "uccf.h"
+
#define MAX_TX_THREADS 8
#define MAX_RX_THREADS 8
#define MAX_TX_QUEUES 8
@@ -670,6 +673,7 @@ typedef enum enet_interface {
ENET_1000_RGMII,
ENET_1000_RGMII_ID,
ENET_1000_RGMII_RXID,
+ ENET_1000_RGMII_TXID,
ENET_1000_TBI,
ENET_1000_RTBI,
ENET_1000_SGMII
diff --git a/drivers/qe/uec_phy.c b/drivers/qe/uec_phy.c
index aa4eb5e..9715183 100644
--- a/drivers/qe/uec_phy.c
+++ b/drivers/qe/uec_phy.c
@@ -429,12 +429,23 @@ static int marvell_init(struct uec_mii_info *mii_info)
{
struct eth_device *edev = mii_info->dev;
uec_private_t *uec = edev->priv;
+ enum enet_interface iface = uec->uec_info->enet_interface;
- if (uec->uec_info->enet_interface == ENET_1000_RGMII_ID) {
+ if (iface == ENET_1000_RGMII_ID ||
+ iface == ENET_1000_RGMII_RXID ||
+ iface == ENET_1000_RGMII_TXID) {
int temp;
temp = phy_read(mii_info, MII_M1111_PHY_EXT_CR);
- temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
+ if (iface == ENET_1000_RGMII_ID) {
+ temp |= MII_M1111_RX_DELAY | MII_M1111_TX_DELAY;
+ } else if (iface == ENET_1000_RGMII_RXID) {
+ temp &= ~MII_M1111_TX_DELAY;
+ temp |= MII_M1111_RX_DELAY;
+ } else if (iface == ENET_1000_RGMII_TXID) {
+ temp &= ~MII_M1111_RX_DELAY;
+ temp |= MII_M1111_TX_DELAY;
+ }
phy_write(mii_info, MII_M1111_PHY_EXT_CR, temp);
temp = phy_read(mii_info, MII_M1111_PHY_EXT_SR);
generated by cgit v1.1 at 2024-12-26 14:05:03 +0000