board: gateworks: gw_ventana: use comomn GSC driver
Use the common GSC driver.
This allows us to do some additional cleanup:
- use the GSC driver functions
- move waiting for the EEPROM to the SPL int (it will always be ready
after this)
- move eeprom functions into eeprom file and elimate GSC_I2C_BUS
- eliminate some redundant EEPROM reads (the EEPROM must be read in
SPL before relocation, in SPL after relocation, and in U-Boot init.
All subsequent uses can use the global structure)
- remove unnecessary header files and alphabatize includes
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/board/gateworks/gw_ventana/Kconfig b/board/gateworks/gw_ventana/Kconfig
index fee910c..c82e8ae 100644
--- a/board/gateworks/gw_ventana/Kconfig
+++ b/board/gateworks/gw_ventana/Kconfig
@@ -17,12 +17,4 @@
help
Provides access to EEPROM configuration on Gateworks Ventana
-config CMD_GSC
- bool "Enable the 'gsc' command"
- help
- Provides access to the GSC configuration:
-
- gsc sleep - sleeps for a period of seconds
- gsc wd - enables / disables the watchdog
-
endif
diff --git a/board/gateworks/gw_ventana/Makefile b/board/gateworks/gw_ventana/Makefile
index 360d1d4..c407f8e 100644
--- a/board/gateworks/gw_ventana/Makefile
+++ b/board/gateworks/gw_ventana/Makefile
@@ -6,5 +6,5 @@
# SPDX-License-Identifier: GPL-2.0+
#
-obj-y := gw_ventana.o gsc.o eeprom.o common.o
+obj-y := gw_ventana.o eeprom.o common.o
obj-$(CONFIG_SPL_BUILD) += gw_ventana_spl.o
diff --git a/board/gateworks/gw_ventana/common.c b/board/gateworks/gw_ventana/common.c
index 4144064..74328b2 100644
--- a/board/gateworks/gw_ventana/common.c
+++ b/board/gateworks/gw_ventana/common.c
@@ -6,15 +6,15 @@
*/
#include <common.h>
+#include <env.h>
+#include <fsl_esdhc_imx.h>
+#include <hwconfig.h>
#include <log.h>
#include <asm/arch/clock.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/mach-imx/mxc_i2c.h>
-#include <env.h>
-#include <fsl_esdhc_imx.h>
-#include <hwconfig.h>
#include <linux/delay.h>
#include "common.h"
@@ -1045,7 +1045,7 @@
#define SETUP_GPIO_INPUT(gpio, name) \
gpio_request(gpio, name); \
gpio_direction_input(gpio);
-void setup_iomux_gpio(int board, struct ventana_board_info *info)
+void setup_iomux_gpio(int board)
{
if (board >= GW_UNKNOWN)
return;
@@ -1214,8 +1214,6 @@
int board_mmc_init(struct bd_info *bis)
{
- struct ventana_board_info ventana_info;
- int board_type = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
int ret;
switch (board_type) {
@@ -1279,13 +1277,11 @@
int board_mmc_getcd(struct mmc *mmc)
{
- struct ventana_board_info ventana_info;
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
- int board = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
- int gpio = gpio_cfg[board].mmc_cd;
+ int gpio = gpio_cfg[board_type].mmc_cd;
/* Card Detect */
- switch (board) {
+ switch (board_type) {
case GW560x:
/* emmc is always present */
if (cfg->esdhc_base == USDHC2_BASE_ADDR)
diff --git a/board/gateworks/gw_ventana/common.h b/board/gateworks/gw_ventana/common.h
index 7a60db7..480c667 100644
--- a/board/gateworks/gw_ventana/common.h
+++ b/board/gateworks/gw_ventana/common.h
@@ -8,7 +8,7 @@
#ifndef _GWVENTANA_COMMON_H_
#define _GWVENTANA_COMMON_H_
-#include "ventana_eeprom.h"
+#include "eeprom.h"
/* GPIO's common to all baseboards */
#define GP_RS232_EN IMX_GPIO_NR(2, 11)
@@ -80,6 +80,6 @@
extern struct ventana gpio_cfg[GW_UNKNOWN];
/* configure gpio iomux/defaults */
-void setup_iomux_gpio(int board, struct ventana_board_info *);
+void setup_iomux_gpio(int board);
#endif /* #ifndef _GWVENTANA_COMMON_H_ */
diff --git a/board/gateworks/gw_ventana/eeprom.c b/board/gateworks/gw_ventana/eeprom.c
index c3a2bbe..e622a9b 100644
--- a/board/gateworks/gw_ventana/eeprom.c
+++ b/board/gateworks/gw_ventana/eeprom.c
@@ -4,23 +4,211 @@
* Author: Tim Harvey <tharvey@gateworks.com>
*/
-#include <common.h>
#include <command.h>
-#include <errno.h>
+#include <common.h>
+#include <gsc.h>
#include <hexdump.h>
#include <i2c.h>
-#include <log.h>
-#include <malloc.h>
-#include <asm/bitops.h>
-#include <linux/delay.h>
+#include <asm/arch/sys_proto.h>
+#include <dm/device.h>
#include <dm/uclass.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+
+#include "eeprom.h"
+
+/*
+ * EEPROM board info struct populated by read_eeprom so that we only have to
+ * read it once.
+ */
+struct ventana_board_info ventana_info;
+int board_type;
+
+#if CONFIG_IS_ENABLED(DM_I2C)
+struct udevice *i2c_get_dev(int busno, int slave)
+{
+ struct udevice *dev, *bus;
+ int ret;
+
+ ret = uclass_get_device_by_seq(UCLASS_I2C, busno, &bus);
+ if (ret)
+ return NULL;
+ ret = dm_i2c_probe(bus, slave, 0, &dev);
+ if (ret)
+ return NULL;
+
+ return dev;
+}
+#endif
+
+/*
+ * The Gateworks System Controller will fail to ACK a master transaction if
+ * it is busy, which can occur during its 1HZ timer tick while reading ADC's.
+ * When this does occur, it will never be busy long enough to fail more than
+ * 2 back-to-back transfers. Thus we wrap i2c_read and i2c_write with
+ * 3 retries.
+ */
+int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
+{
+ int retry = 3;
+ int n = 0;
+ int ret;
+#if CONFIG_IS_ENABLED(DM_I2C)
+ struct udevice *dev;
+
+ dev = i2c_get_dev(BOARD_EEPROM_BUSNO, chip);
+ if (!dev)
+ return -ENODEV;
+ ret = i2c_set_chip_offset_len(dev, alen);
+ if (ret) {
+ puts("EEPROM: Failed to set alen\n");
+ return ret;
+ }
+#else
+ i2c_set_bus_num(BOARD_EEPROM_BUSNO);
+#endif
+
+ while (n++ < retry) {
+#if CONFIG_IS_ENABLED(DM_I2C)
+ ret = dm_i2c_read(dev, addr, buf, len);
+#else
+ ret = i2c_read(chip, addr, alen, buf, len);
+#endif
+ if (!ret)
+ break;
+ debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
+ n, ret);
+ if (ret != -ENODEV)
+ break;
+ mdelay(10);
+ }
+ return ret;
+}
+
+int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len)
+{
+ int retry = 3;
+ int n = 0;
+ int ret;
+#if CONFIG_IS_ENABLED(DM_I2C)
+ struct udevice *dev;
+
+ dev = i2c_get_dev(BOARD_EEPROM_BUSNO, chip);
+ if (!dev)
+ return -ENODEV;
+ ret = i2c_set_chip_offset_len(dev, alen);
+ if (ret) {
+ puts("EEPROM: Failed to set alen\n");
+ return ret;
+ }
+#endif
+
+ while (n++ < retry) {
+#if CONFIG_IS_ENABLED(DM_I2C)
+ ret = dm_i2c_write(dev, addr, buf, len);
+#else
+ ret = i2c_write(chip, addr, alen, buf, len);
+#endif
+ if (!ret)
+ break;
+ debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
+ n, ret);
+ if (ret != -ENODEV)
+ break;
+ mdelay(10);
+ }
+ mdelay(100);
+ return ret;
+}
+
+/* determine BOM revision from model */
+int get_bom_rev(const char *str)
+{
+ int rev_bom = 0;
+ int i;
+
+ for (i = strlen(str) - 1; i > 0; i--) {
+ if (str[i] == '-')
+ break;
+ if (str[i] >= '1' && str[i] <= '9') {
+ rev_bom = str[i] - '0';
+ break;
+ }
+ }
+ return rev_bom;
+}
+
+/* determine PCB revision from model */
+char get_pcb_rev(const char *str)
+{
+ char rev_pcb = 'A';
+ int i;
+
+ for (i = strlen(str) - 1; i > 0; i--) {
+ if (str[i] == '-')
+ break;
+ if (str[i] >= 'A') {
+ rev_pcb = str[i];
+ break;
+ }
+ }
+ return rev_pcb;
+}
-#include "gsc.h"
-#include "ventana_eeprom.h"
+/*
+ * get dt name based on model and detail level:
+ */
+const char *gsc_get_dtb_name(int level, char *buf, int sz)
+{
+ const char *model = (const char *)ventana_info.model;
+ const char *pre = is_mx6dq() ? "imx6q-" : "imx6dl-";
+ int modelno, rev_pcb, rev_bom;
+
+ /* a few board models are dt equivalents to other models */
+ if (strncasecmp(model, "gw5906", 6) == 0)
+ model = "gw552x-d";
+ else if (strncasecmp(model, "gw5908", 6) == 0)
+ model = "gw53xx-f";
+ else if (strncasecmp(model, "gw5905", 6) == 0)
+ model = "gw5904-a";
+
+ modelno = ((model[2] - '0') * 1000)
+ + ((model[3] - '0') * 100)
+ + ((model[4] - '0') * 10)
+ + (model[5] - '0');
+ rev_pcb = tolower(get_pcb_rev(model));
+ rev_bom = get_bom_rev(model);
+
+ /* compare model/rev/bom in order of most specific to least */
+ snprintf(buf, sz, "%s%04d", pre, modelno);
+ switch (level) {
+ case 0: /* full model first (ie gw5400-a1) */
+ if (rev_bom) {
+ snprintf(buf, sz, "%sgw%04d-%c%d", pre, modelno, rev_pcb, rev_bom);
+ break;
+ }
+ fallthrough;
+ case 1: /* don't care about bom rev (ie gw5400-a) */
+ snprintf(buf, sz, "%sgw%04d-%c", pre, modelno, rev_pcb);
+ break;
+ case 2: /* don't care about the pcb rev (ie gw5400) */
+ snprintf(buf, sz, "%sgw%04d", pre, modelno);
+ break;
+ case 3: /* look for generic model (ie gw540x) */
+ snprintf(buf, sz, "%sgw%03dx", pre, modelno / 10);
+ break;
+ case 4: /* look for more generic model (ie gw54xx) */
+ snprintf(buf, sz, "%sgw%02dxx", pre, modelno / 100);
+ break;
+ default: /* give up */
+ return NULL;
+ }
+ return buf;
+}
/* read ventana EEPROM, check for validity, and return baseboard type */
int
-read_eeprom(int bus, struct ventana_board_info *info)
+read_eeprom(struct ventana_board_info *info)
{
int i;
int chksum;
@@ -30,29 +218,8 @@
memset(info, 0, sizeof(*info));
- /*
- * On a board with a missing/depleted backup battery for GSC, the
- * board may be ready to probe the GSC before its firmware is
- * running. We will wait here indefinately for the GSC/EEPROM.
- */
-#if CONFIG_IS_ENABLED(DM_I2C)
- while (1) {
- if (i2c_get_dev(bus, GSC_EEPROM_ADDR))
- break;
- mdelay(1);
- }
-#else
- while (1) {
- if (0 == i2c_set_bus_num(bus) &&
- 0 == i2c_probe(GSC_EEPROM_ADDR))
- break;
- mdelay(1);
- }
-#endif
-
/* read eeprom config section */
- mdelay(10);
- if (gsc_i2c_read(GSC_EEPROM_ADDR, 0x00, 1, buf, sizeof(*info))) {
+ if (gsc_i2c_read(BOARD_EEPROM_ADDR, 0x00, 1, buf, sizeof(*info))) {
puts("EEPROM: Failed to read EEPROM\n");
return GW_UNKNOWN;
}
@@ -219,14 +386,14 @@
info->chksum[1] = chksum & 0xff;
/* write new config data */
- if (gsc_i2c_write(GSC_EEPROM_ADDR, info->config - (u8 *)info,
+ if (gsc_i2c_write(BOARD_EEPROM_ADDR, info->config - (u8 *)info,
1, econfig_bytes, sizeof(econfig_bytes))) {
printf("EEPROM: Failed updating config\n");
return CMD_RET_FAILURE;
}
/* write new config data */
- if (gsc_i2c_write(GSC_EEPROM_ADDR, info->chksum - (u8 *)info,
+ if (gsc_i2c_write(BOARD_EEPROM_ADDR, info->chksum - (u8 *)info,
1, info->chksum, 2)) {
printf("EEPROM: Failed updating checksum\n");
return CMD_RET_FAILURE;
diff --git a/board/gateworks/gw_ventana/ventana_eeprom.h b/board/gateworks/gw_ventana/eeprom.h
similarity index 82%
rename from board/gateworks/gw_ventana/ventana_eeprom.h
rename to board/gateworks/gw_ventana/eeprom.h
index 2d5c272..2354205 100644
--- a/board/gateworks/gw_ventana/ventana_eeprom.h
+++ b/board/gateworks/gw_ventana/eeprom.h
@@ -6,6 +6,9 @@
#ifndef _VENTANA_EEPROM_
#define _VENTANA_EEPROM_
+#define BOARD_EEPROM_BUSNO 0
+#define BOARD_EEPROM_ADDR 0x51
+
struct ventana_board_info {
u8 mac0[6]; /* 0x00: MAC1 */
u8 mac1[6]; /* 0x06: MAC2 */
@@ -137,7 +140,18 @@
extern struct ventana_eeprom_config econfig[];
extern struct ventana_board_info ventana_info;
+extern int board_type;
+
+int read_eeprom(struct ventana_board_info *info);
-int read_eeprom(int bus, struct ventana_board_info *);
+/*
+ * I2C transactions to the GSC are done via these functions which
+ * perform retries in the case of a busy GSC NAK'ing the transaction
+ */
+int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len);
+int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len);
+const char *gsc_get_dtb_name(int level, char *buf, int sz);
+struct udevice *i2c_get_dev(int busno, int slave);
+const char *eeprom_get_model(void);
#endif
diff --git a/board/gateworks/gw_ventana/gsc.h b/board/gateworks/gw_ventana/gsc.h
deleted file mode 100644
index 2e1d25b..0000000
--- a/board/gateworks/gw_ventana/gsc.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (C) 2013 Gateworks Corporation
- *
- * Author: Tim Harvey <tharvey@gateworks.com>
- */
-
-#ifndef __ASSEMBLY__
-
-/* i2c slave addresses */
-#define GSC_SC_ADDR 0x20
-#define GSC_RTC_ADDR 0x68
-#define GSC_HWMON_ADDR 0x29
-#define GSC_EEPROM_ADDR 0x51
-
-/* System Controller registers */
-enum {
- GSC_SC_CTRL0 = 0x00,
- GSC_SC_CTRL1 = 0x01,
- GSC_SC_STATUS = 0x0a,
- GSC_SC_FWCRC = 0x0c,
- GSC_SC_FWVER = 0x0e,
-};
-
-/* System Controller Control1 bits */
-enum {
- GSC_SC_CTRL1_WDTIME = 4, /* 1 = 60s timeout, 0 = 30s timeout */
- GSC_SC_CTRL1_WDEN = 5, /* 1 = enable, 0 = disable */
- GSC_SC_CTRL1_WDDIS = 7, /* 1 = disable boot watchdog */
-};
-
-/* System Controller Interrupt bits */
-enum {
- GSC_SC_IRQ_PB = 0, /* Pushbutton switch */
- GSC_SC_IRQ_SECURE = 1, /* Secure Key erase operation complete */
- GSC_SC_IRQ_EEPROM_WP = 2, /* EEPROM write violation */
- GSC_SC_IRQ_GPIO = 4, /* GPIO change */
- GSC_SC_IRQ_TAMPER = 5, /* Tamper detect */
- GSC_SC_IRQ_WATCHDOG = 6, /* Watchdog trip */
- GSC_SC_IRQ_PBLONG = 7, /* Pushbutton long hold */
-};
-
-/* Hardware Monitor registers */
-enum {
- GSC_HWMON_TEMP = 0x00,
- GSC_HWMON_VIN = 0x02,
- GSC_HWMON_VDD_3P3 = 0x05,
- GSC_HWMON_VBATT = 0x08,
- GSC_HWMON_VDD_5P0 = 0x0b,
- GSC_HWMON_VDD_CORE = 0x0e,
- GSC_HWMON_VDD_SOC = 0x11,
- GSC_HWMON_VDD_HIGH = 0x14,
- GSC_HWMON_VDD_DDR = 0x17,
- GSC_HWMON_VDD_EXT = 0x1a,
- GSC_HWMON_VDD_1P8 = 0x1d,
- GSC_HWMON_VDD_IO2 = 0x20,
- GSC_HWMON_VDD_2P5 = 0x23,
- GSC_HWMON_VDD_IO3 = 0x26,
- GSC_HWMON_VDD_IO4 = 0x29,
-};
-
-/*
- * I2C transactions to the GSC are done via these functions which
- * perform retries in the case of a busy GSC NAK'ing the transaction
- */
-int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len);
-int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len);
-int gsc_info(int verbose);
-int gsc_boot_wd_disable(void);
-const char *gsc_get_dtb_name(int level, char *buf, int sz);
-struct udevice *i2c_get_dev(int busno, int slave);
-#endif
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 8748878..c06630a 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -5,40 +5,29 @@
* Author: Tim Harvey <tharvey@gateworks.com>
*/
+#include <command.h>
#include <common.h>
+#include <fdt_support.h>
+#include <gsc.h>
+#include <hwconfig.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <mtd_node.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/mxc_hdmi.h>
#include <asm/arch/sys_proto.h>
-#include <asm/global_data.h>
-#include <asm/gpio.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/video.h>
-#include <asm/setup.h>
-#include <env.h>
-#include <hwconfig.h>
+#include <jffs2/load_kernel.h>
#include <linux/ctype.h>
-#include <miiphy.h>
-#include <mtd_node.h>
#include <linux/delay.h>
-#include <power/pmic.h>
-#include <fdt_support.h>
-#include <jffs2/load_kernel.h>
-#include "gsc.h"
#include "common.h"
DECLARE_GLOBAL_DATA_PTR;
-
-/*
- * EEPROM board info struct populated by read_eeprom so that we only have to
- * read it once.
- */
-struct ventana_board_info ventana_info;
-static int board_type;
-
/* configure eth0 PHY board-specific LED behavior */
int board_phy_config(struct phy_device *phydev)
{
@@ -482,9 +471,12 @@
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
/* read Gateworks EEPROM into global struct (used later) */
- board_type = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
+ board_type = read_eeprom(&ventana_info);
- setup_iomux_gpio(board_type, &ventana_info);
+ setup_iomux_gpio(board_type);
+
+ /* show GSC details */
+ run_command("gsc", 0);
return 0;
}
@@ -517,7 +509,6 @@
int checkboard(void)
{
struct ventana_board_info *info = &ventana_info;
- unsigned char buf[4];
const char *p;
int quiet; /* Quiet or minimal output mode */
@@ -541,15 +532,6 @@
if (quiet)
return 0;
- /* Display GSC firmware revision/CRC/status */
- gsc_info(0);
-
- /* Display RTC */
- if (!gsc_i2c_read(GSC_RTC_ADDR, 0x00, 1, buf, 4)) {
- printf("RTC: %d\n",
- buf[0] | buf[1]<<8 | buf[2]<<16 | buf[3]<<24);
- }
-
return 0;
}
#endif
diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c
index 3149e88..e85a009 100644
--- a/board/gateworks/gw_ventana/gw_ventana_spl.c
+++ b/board/gateworks/gw_ventana/gw_ventana_spl.c
@@ -6,26 +6,22 @@
#include <common.h>
#include <env.h>
+#include <gsc.h>
#include <hang.h>
+#include <i2c.h>
#include <init.h>
-#include <log.h>
-#include <asm/io.h>
+#include <spl.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
-#include <asm/mach-imx/boot_mode.h>
-#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
-#include <env.h>
-#include <i2c.h>
-#include <spl.h>
+#include <linux/delay.h>
+#include <power/mp5416.h>
#include <power/pmic.h>
-#include <power/ltc3676_pmic.h>
#include <power/pfuze100_pmic.h>
-#include <power/mp5416.h>
+#include <power/ltc3676_pmic.h>
-#include "gsc.h"
#include "common.h"
#define RTT_NOM_120OHM /* use 120ohm Rtt_nom vs 60ohm (lower power) */
@@ -778,8 +774,6 @@
void setup_pmic(void)
{
struct pmic *p;
- struct ventana_board_info ventana_info;
- int board = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
const int i2c_pmic = 1;
u32 reg;
char rev;
@@ -817,7 +811,7 @@
reg |= (SWBST_5_00V | (SWBST_MODE_AUTO << SWBST_MODE_SHIFT));
pmic_reg_write(p, PFUZE100_SWBSTCON1, reg);
- if (board == GW54xx && (rev == 'G')) {
+ if (board_type == GW54xx && (rev == 'G')) {
/* Disable VGEN5 */
pmic_reg_write(p, PFUZE100_VGEN5VOL, 0);
@@ -873,7 +867,7 @@
* is a bit shy of the Vmin of 1350mV in the datasheet
* for LDO enabled mode but is as high as we can go.
*/
- switch (board) {
+ switch (board_type) {
case GW560x:
/* mask PGOOD during SW3 transition */
pmic_reg_write(p, LTC3676_DVB3B,
@@ -931,7 +925,7 @@
/* configure MP5416 PMIC */
else if (!i2c_probe(0x69)) {
puts("PMIC: MP5416\n");
- switch (board) {
+ switch (board_type) {
case GW5910:
/* SW1: VDD_ARM 1.2V -> (1.275 to 1.475) */
reg = MP5416_VSET_EN | MP5416_VSET_SW1_SVAL(1475000);
@@ -974,11 +968,23 @@
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
+ /*
+ * On a board with a missing/depleted backup battery for GSC, the
+ * board may be ready to probe the GSC before its firmware is
+ * running. We will wait here indefinately for the GSC/EEPROM.
+ */
+ while (1) {
+ if (!i2c_set_bus_num(BOARD_EEPROM_BUSNO) &&
+ !i2c_probe(BOARD_EEPROM_ADDR))
+ break;
+ mdelay(1);
+ }
+
/* read/validate EEPROM info to determine board model and SDRAM cfg */
- board_model = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
+ board_model = read_eeprom(&ventana_info);
/* configure model-specific gpio */
- setup_iomux_gpio(board_model, &ventana_info);
+ setup_iomux_gpio(board_model);
/* provide some some default: 32bit 128MB */
if (GW_UNKNOWN == board_model)
@@ -1006,7 +1012,6 @@
/* called from board_init_r after gd setup if CONFIG_SPL_BOARD_INIT defined */
/* its our chance to print info about boot device */
-static int board_type;
void spl_board_init(void)
{
u32 boot_device;
@@ -1015,7 +1020,7 @@
boot_device = spl_boot_device();
/* read eeprom again now that we have gd */
- board_type = read_eeprom(CONFIG_I2C_GSC, &ventana_info);
+ board_type = read_eeprom(&ventana_info);
if (board_type == GW_UNKNOWN)
hang();