/*
* Copyright (C) 2012-2015 Lothar Waßmann <LW@KARO-electronics.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
- * version 2 as published by the Free Software Foundation.
- *
- * 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.
+ * SPDX-License-Identifier: GPL-2.0+
*
*/
#include <common.h>
#include <asm/gpio.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/clock.h>
+#include <asm/arch/hab.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/sys_proto.h>
#define TX6_LCD_BACKLIGHT_GPIO IMX_GPIO_NR(1, 1)
#define TX6_RESET_OUT_GPIO IMX_GPIO_NR(7, 12)
+#define TX6_I2C1_SCL_GPIO IMX_GPIO_NR(3, 21)
+#define TX6_I2C1_SDA_GPIO IMX_GPIO_NR(3, 28)
#ifdef CONFIG_MX6_TEMPERATURE_MIN
#define TEMPERATURE_MIN CONFIG_MX6_TEMPERATURE_MIN
#define MUX_CFG_SION IOMUX_PAD(0, 0, IOMUX_CONFIG_SION, 0, 0, 0)
-enum {
- MX6_PAD_DECL(GARBAGE, 0, 0, 0, 0, 0, 0)
-};
+char __uboot_img_end[0] __attribute__((section(".__uboot_img_end")));
+#ifdef CONFIG_SECURE_BOOT
+char __csf_data[0] __attribute__((section(".__csf_data")));
+#endif
static const iomux_v3_cfg_t const tx6qdl_pads[] = {
/* RESET_OUT */
MX6_PAD_ENET_TXD0__ENET_TX_DATA0,
};
+#define TX6_I2C_GPIO_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
+ PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_34ohm | \
+ PAD_CTL_SRE_FAST)
+
+static const iomux_v3_cfg_t const tx6_i2c_gpio_pads[] = {
+ /* internal I2C */
+ MX6_PAD_EIM_D28__GPIO3_IO28 | MUX_CFG_SION | MUX_PAD_CTRL(TX6_I2C_GPIO_PAD_CTRL),
+ MX6_PAD_EIM_D21__GPIO3_IO21 | MUX_CFG_SION | MUX_PAD_CTRL(TX6_I2C_GPIO_PAD_CTRL),
+};
+
+static const iomux_v3_cfg_t const tx6_i2c_pads[] = {
+ /* internal I2C */
+ MX6_PAD_EIM_D28__I2C1_SDA,
+ MX6_PAD_EIM_D21__I2C1_SCL,
+};
+
static const struct gpio const tx6qdl_gpios[] = {
+ /* These two entries are used to forcefully reinitialize the I2C bus */
+ { TX6_I2C1_SCL_GPIO, GPIOFLAG_INPUT, "I2C1 SCL", },
+ { TX6_I2C1_SDA_GPIO, GPIOFLAG_INPUT, "I2C1 SDA", },
+
{ TX6_RESET_OUT_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "#RESET_OUT", },
{ TX6_FEC_PWR_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "FEC PHY PWR", },
{ TX6_FEC_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "FEC PHY RESET", },
{ TX6_FEC_INT_GPIO, GPIOFLAG_INPUT, "FEC PHY INT", },
};
-/*
- * Functions
- */
+static int pmic_addr __data;
+
+#if defined(CONFIG_SOC_MX6Q)
+#define IOMUXC_SW_MUX_CTL_PAD_EIM_DATA21 0x020e00a4
+#define IOMUXC_SW_MUX_CTL_PAD_EIM_DATA28 0x020e00c4
+#define IOMUXC_SW_PAD_CTL_PAD_EIM_DATA21 0x020e03b8
+#define IOMUXC_SW_PAD_CTL_PAD_EIM_DATA28 0x020e03d8
+#define IOMUXC_SW_SEL_INPUT_PAD_EIM_DATA21 0x020e0898
+#define IOMUXC_SW_SEL_INPUT_PAD_EIM_DATA28 0x020e089c
+#define I2C1_SEL_INPUT_VAL 0
+#endif
+#if defined(CONFIG_SOC_MX6DL) || defined(CONFIG_SOC_MX6S)
+#define IOMUXC_SW_MUX_CTL_PAD_EIM_DATA21 0x020e0158
+#define IOMUXC_SW_MUX_CTL_PAD_EIM_DATA28 0x020e0174
+#define IOMUXC_SW_PAD_CTL_PAD_EIM_DATA21 0x020e0528
+#define IOMUXC_SW_PAD_CTL_PAD_EIM_DATA28 0x020e0544
+#define IOMUXC_SW_SEL_INPUT_PAD_EIM_DATA21 0x020e0868
+#define IOMUXC_SW_SEL_INPUT_PAD_EIM_DATA28 0x020e086c
+#define I2C1_SEL_INPUT_VAL 1
+#endif
+
+#define GPIO_DR 0
+#define GPIO_DIR 4
+#define GPIO_PSR 8
+
+static void tx6_i2c_recover(void)
+{
+ int i;
+ int bad = 0;
+#define SCL_BIT (1 << (TX6_I2C1_SCL_GPIO % 32))
+#define SDA_BIT (1 << (TX6_I2C1_SDA_GPIO % 32))
+
+ if ((readl(GPIO3_BASE_ADDR + GPIO_PSR) &
+ (SCL_BIT | SDA_BIT)) == (SCL_BIT | SDA_BIT))
+ return;
+
+ debug("Clearing I2C bus\n");
+ if (!(readl(GPIO3_BASE_ADDR + GPIO_PSR) & SCL_BIT)) {
+ printf("I2C SCL stuck LOW\n");
+ bad++;
+
+ writel(readl(GPIO3_BASE_ADDR + GPIO_DR) | SCL_BIT,
+ GPIO3_BASE_ADDR + GPIO_DR);
+ writel(readl(GPIO3_BASE_ADDR + GPIO_DIR) | SCL_BIT,
+ GPIO3_BASE_ADDR + GPIO_DIR);
+ }
+ if (!(readl(GPIO3_BASE_ADDR + GPIO_PSR) & SDA_BIT)) {
+ printf("I2C SDA stuck LOW\n");
+ bad++;
+
+ writel(readl(GPIO3_BASE_ADDR + GPIO_DIR) & ~SDA_BIT,
+ GPIO3_BASE_ADDR + GPIO_DIR);
+ writel(readl(GPIO3_BASE_ADDR + GPIO_DR) | SCL_BIT,
+ GPIO3_BASE_ADDR + GPIO_DR);
+ writel(readl(GPIO3_BASE_ADDR + GPIO_DIR) | SCL_BIT,
+ GPIO3_BASE_ADDR + GPIO_DIR);
+
+ imx_iomux_v3_setup_multiple_pads(tx6_i2c_gpio_pads,
+ ARRAY_SIZE(tx6_i2c_gpio_pads));
+ udelay(10);
+
+ for (i = 0; i < 18; i++) {
+ u32 reg = readl(GPIO3_BASE_ADDR + GPIO_DR) ^ SCL_BIT;
+
+ debug("%sing SCL\n", (reg & SCL_BIT) ? "Sett" : "Clear");
+ writel(reg, GPIO3_BASE_ADDR + GPIO_DR);
+ udelay(10);
+ if (reg & SCL_BIT &&
+ readl(GPIO3_BASE_ADDR + GPIO_PSR) & SDA_BIT)
+ break;
+ }
+ }
+ if (bad) {
+ u32 reg = readl(GPIO3_BASE_ADDR + GPIO_PSR);
+
+ if ((reg & (SCL_BIT | SDA_BIT)) == (SCL_BIT | SDA_BIT)) {
+ printf("I2C bus recovery succeeded\n");
+ } else {
+ printf("I2C bus recovery FAILED: %08x:%08x\n", reg,
+ SCL_BIT | SDA_BIT);
+ }
+ }
+ debug("Setting up I2C Pads\n");
+ imx_iomux_v3_setup_multiple_pads(tx6_i2c_pads,
+ ARRAY_SIZE(tx6_i2c_pads));
+}
+
/* placed in section '.data' to prevent overwriting relocation info
* overlayed with bss
*/
-static u32 wrsr __attribute__((section(".data")));
+static u32 wrsr __data;
#define WRSR_POR (1 << 4)
#define WRSR_TOUT (1 << 1)
static const char __data *tx6_mod_suffix;
-static void tx6qdl_print_cpuinfo(void)
+#ifdef CONFIG_IMX6_THERMAL
+#include <thermal.h>
+#include <imx_thermal.h>
+#include <fuse.h>
+
+static void print_temperature(void)
+{
+ struct udevice *thermal_dev;
+ int cpu_tmp, minc, maxc, ret;
+ char const *grade_str;
+ static u32 __data thermal_calib;
+
+ puts("Temperature: ");
+ switch (get_cpu_temp_grade(&minc, &maxc)) {
+ case TEMP_AUTOMOTIVE:
+ grade_str = "Automotive";
+ break;
+ case TEMP_INDUSTRIAL:
+ grade_str = "Industrial";
+ break;
+ case TEMP_EXTCOMMERCIAL:
+ grade_str = "Extended Commercial";
+ break;
+ default:
+ grade_str = "Commercial";
+ }
+ printf("%s grade (%dC to %dC)", grade_str, minc, maxc);
+ ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev);
+ if (ret == 0) {
+ ret = thermal_get_temp(thermal_dev, &cpu_tmp);
+
+ if (ret == 0)
+ printf(" at %dC", cpu_tmp);
+ else
+ puts(" - failed to read sensor data");
+ } else {
+ puts(" - no sensor device found");
+ }
+
+ if (fuse_read(1, 6, &thermal_calib) == 0) {
+ printf(" - calibration data 0x%08x\n", thermal_calib);
+ } else {
+ puts(" - Failed to read thermal calib fuse\n");
+ }
+}
+#else
+static inline void print_temperature(void)
+{
+}
+#endif
+
+int checkboard(void)
{
u32 cpurev = get_cpu_rev();
char *cpu_str = "?";
break;
}
- printf("CPU: Freescale i.MX6%s rev%d.%d at %d MHz\n",
+ printf("CPU: Freescale i.MX6%s rev%d.%d at %d MHz\n",
cpu_str,
(cpurev & 0x000F0) >> 4,
(cpurev & 0x0000F) >> 0,
mxc_get_clock(MXC_ARM_CLK) / 1000000);
+ print_temperature();
print_reset_cause();
#ifdef CONFIG_MX6_TEMPERATURE_HOT
check_cpu_temperature(1);
#endif
+ tx6_i2c_recover();
+ return 0;
}
+/* serial port not initialized at this point */
int board_early_init_f(void)
{
return 0;
#else
#define tx6_temp_check_enabled 0
#endif
-static int pmic_addr __data;
+
+#ifdef CONFIG_TX6_NAND
+#define TX6_FLASH_SZ (CONFIG_SYS_NAND_BLOCKS / 1024 - 1)
+#else
+#ifdef CONFIG_MMC_BOOT_SIZE
+#define TX6_FLASH_SZ (CONFIG_MMC_BOOT_SIZE / 4096 + 2)
+#else
+#define TX6_FLASH_SZ 2
+#endif
+#endif /* CONFIG_TX6_NAND */
+
+#define TX6_DDR_SZ (ffs(CONFIG_SYS_SDRAM_BUS_WIDTH / 16) - 1)
+
+static char tx6_mem_table[] = {
+ '4', /* 256MiB SDRAM 16bit; 128MiB NAND */
+ '1', /* 512MiB SDRAM 32bit; 128MiB NAND */
+ '0', /* 1GiB SDRAM 64bit; 128MiB NAND */
+ '?', /* 256MiB SDRAM 16bit; 256MiB NAND */
+ '?', /* 512MiB SDRAM 32bit; 256MiB NAND */
+ '2', /* 1GiB SDRAM 64bit; 256MiB NAND */
+ '?', /* 256MiB SDRAM 16bit; 4GiB eMMC */
+ '5', /* 512MiB SDRAM 32bit; 4GiB eMMC */
+ '3', /* 1GiB SDRAM 64bit; 4GiB eMMC */
+ '?', /* 256MiB SDRAM 16bit; 8GiB eMMC */
+ '?', /* 512MiB SDRAM 32bit; 8GiB eMMC */
+ '0', /* 1GiB SDRAM 64bit; 8GiB eMMC */
+};
+
+static struct {
+ uchar addr;
+ uchar rev;
+} tx6_mod_revs[] = {
+ { 0x3c, 1, },
+ { 0x32, 2, },
+ { 0x33, 3, },
+};
+
+static inline char tx6_mem_suffix(void)
+{
+ size_t mem_idx = (TX6_FLASH_SZ * 3) + TX6_DDR_SZ;
+
+ debug("TX6_DDR_SZ=%d TX6_FLASH_SZ=%d idx=%d\n",
+ TX6_DDR_SZ, TX6_FLASH_SZ, mem_idx);
+
+ if (mem_idx >= ARRAY_SIZE(tx6_mem_table))
+ return '?';
+
+ return tx6_mem_table[mem_idx];
+};
+
+static int tx6_get_mod_rev(unsigned int pmic_id)
+{
+ if (pmic_id < ARRAY_SIZE(tx6_mod_revs))
+ return tx6_mod_revs[pmic_id].rev;
+
+ return 0;
+}
+
+static int tx6_pmic_probe(void)
+{
+ int i;
+
+ debug("%s@%d: \n", __func__, __LINE__);
+
+ for (i = 0; i < ARRAY_SIZE(tx6_mod_revs); i++) {
+ u8 i2c_addr = tx6_mod_revs[i].addr;
+ int ret = i2c_probe(i2c_addr);
+
+ if (ret == 0) {
+ debug("I2C probe succeeded for addr 0x%02x\n", i2c_addr);
+ return i;
+ }
+ debug("I2C probe returned %d for addr 0x%02x\n", ret, i2c_addr);
+ }
+ return -EINVAL;
+}
int board_init(void)
{
int ret;
+ u32 cpurev = get_cpu_rev();
+ int cpu_variant = (cpurev >> 12) & 0xff;
+ int pmic_id;
+
+ debug("%s@%d: \n", __func__, __LINE__);
+
+ pmic_id = tx6_pmic_probe();
+ if (pmic_id >= 0 && pmic_id < ARRAY_SIZE(tx6_mod_revs))
+ pmic_addr = tx6_mod_revs[pmic_id].addr;
+
+ printf("Board: Ka-Ro TX6%s-%d%d%d%c\n",
+ tx6_mod_suffix,
+ cpu_variant == MXC_CPU_MX6Q ? 1 : 8,
+ is_lvds(), tx6_get_mod_rev(pmic_id),
+ tx6_mem_suffix());
+
+ get_hab_status();
ret = gpio_request_array(tx6qdl_gpios, ARRAY_SIZE(tx6qdl_gpios));
if (ret < 0) {
return 0;
}
- ret = tx6_pmic_init(pmic_addr);
+ ret = tx6_pmic_init(pmic_addr, NULL, 0);
if (ret) {
printf("Failed to setup PMIC voltages: %d\n", ret);
hang();
int dram_init(void)
{
+ debug("%s@%d: \n", __func__, __LINE__);
+
/* dram_init must store complete ramsize in gd->ram_size */
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
PHYS_SDRAM_1_SIZE * CONFIG_NR_DRAM_BANKS);
void dram_init_banksize(void)
{
+ debug("%s@%d: \n", __func__, __LINE__);
+
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
PHYS_SDRAM_1_SIZE);
{
int i;
+ debug("%s@%d: \n", __func__, __LINE__);
+
for (i = 0; i < ARRAY_SIZE(tx6qdl_esdhc_cfg); i++) {
struct mmc *mmc;
struct tx6_esdhc_cfg *cfg = &tx6qdl_esdhc_cfg[i];
#ifdef CONFIG_FEC_MXC
-#define FEC_PAD_CTL (PAD_CTL_DVS | PAD_CTL_DSE_HIGH | \
- PAD_CTL_SRE_FAST)
-#define FEC_PAD_CTL2 (PAD_CTL_DVS | PAD_CTL_SRE_FAST)
-#define GPIO_PAD_CTL (PAD_CTL_DVS | PAD_CTL_DSE_HIGH)
-
#ifndef ETH_ALEN
#define ETH_ALEN 6
#endif
{
int ret;
+ debug("%s@%d: \n", __func__, __LINE__);
+
/* delay at least 21ms for the PHY internal POR signal to deassert */
udelay(22000);
{
u8 mac[ETH_ALEN];
- imx_get_mac_from_fuse(-1, mac);
- if (!is_valid_ether_addr(mac)) {
+ imx_get_mac_from_fuse(0, mac);
+ if (!is_valid_ethaddr(mac)) {
printf("No valid MAC address programmed\n");
return;
}
};
#ifdef CONFIG_LCD
-static u16 tx6_cmap[256];
vidinfo_t panel_info = {
/* set to max. size supported by SoC */
.vl_col = 1920,
.vl_row = 1080,
.vl_bpix = LCD_COLOR32, /* Bits per pixel, 0: 1bpp, 1: 2bpp, 2: 4bpp, 3: 8bpp ... */
- .cmap = tx6_cmap,
};
static struct fb_videomode tx6_fb_modes[] = {
int ret = 0;
const char *baseboard;
+ debug("%s@%d: \n", __func__, __LINE__);
+
env_cleanup();
if (tx6_temp_check_enabled)
return ret;
}
-#ifdef CONFIG_TX6_NAND
-#define TX6_FLASH_SZ (CONFIG_SYS_NAND_BLOCKS / 1024 - 1)
-#else
-#ifdef CONFIG_MMC_BOOT_SIZE
-#define TX6_FLASH_SZ (CONFIG_MMC_BOOT_SIZE / 4096 + 2)
-#else
-#define TX6_FLASH_SZ 2
-#endif
-#endif /* CONFIG_TX6_NAND */
-
-#define TX6_DDR_SZ (ffs(PHYS_SDRAM_1_WIDTH / 16) - 1)
-
-static char tx6_mem_table[] = {
- '4', /* 256MiB SDRAM 16bit; 128MiB NAND */
- '1', /* 512MiB SDRAM 32bit; 128MiB NAND */
- '0', /* 1GiB SDRAM 64bit; 128MiB NAND */
- '?', /* 256MiB SDRAM 16bit; 256MiB NAND */
- '?', /* 512MiB SDRAM 32bit; 256MiB NAND */
- '2', /* 1GiB SDRAM 64bit; 256MiB NAND */
- '?', /* 256MiB SDRAM 16bit; 4GiB eMMC */
- '5', /* 512MiB SDRAM 32bit; 4GiB eMMC */
- '3', /* 1GiB SDRAM 64bit; 4GiB eMMC */
- '?', /* 256MiB SDRAM 16bit; 8GiB eMMC */
- '?', /* 512MiB SDRAM 32bit; 8GiB eMMC */
- '0', /* 1GiB SDRAM 64bit; 8GiB eMMC */
-};
-
-static inline char tx6_mem_suffix(void)
-{
- size_t mem_idx = (TX6_FLASH_SZ * 3) + TX6_DDR_SZ;
-
- debug("TX6_DDR_SZ=%d TX6_FLASH_SZ=%d idx=%d\n",
- TX6_DDR_SZ, TX6_FLASH_SZ, mem_idx);
-
- if (mem_idx >= ARRAY_SIZE(tx6_mem_table))
- return '?';
-
- return tx6_mem_table[mem_idx];
-};
-
-static struct {
- uchar addr;
- uchar rev;
-} tx6_mod_revs[] = {
- { 0x3c, 1, },
- { 0x32, 2, },
- { 0x33, 3, },
-};
-
-static int tx6_get_mod_rev(unsigned int pmic_id)
-{
- if (pmic_id < ARRAY_SIZE(tx6_mod_revs))
- return tx6_mod_revs[pmic_id].rev;
-
- return 0;
-}
-
-static int tx6_pmic_probe(void)
-{
- int i;
-
- i2c_init_all();
-
- for (i = 0; i < ARRAY_SIZE(tx6_mod_revs); i++) {
- u8 i2c_addr = tx6_mod_revs[i].addr;
- int ret = i2c_probe(i2c_addr);
-
- if (ret == 0) {
- debug("I2C probe succeeded for addr 0x%02x\n", i2c_addr);
- return i;
- }
- debug("I2C probe returned %d for addr 0x%02x\n", ret, i2c_addr);
- }
- return -EINVAL;
-}
-
-int checkboard(void)
-{
- u32 cpurev = get_cpu_rev();
- int cpu_variant = (cpurev >> 12) & 0xff;
- int pmic_id;
-
- tx6qdl_print_cpuinfo();
-
- pmic_id = tx6_pmic_probe();
- if (pmic_id >= 0)
- pmic_addr = tx6_mod_revs[pmic_id].addr;
-
- printf("Board: Ka-Ro TX6%s-%d%d%d%c\n",
- tx6_mod_suffix,
- cpu_variant == MXC_CPU_MX6Q ? 1 : 8,
- is_lvds(), tx6_get_mod_rev(pmic_id),
- tx6_mem_suffix());
-
- return 0;
-}
-
#ifdef CONFIG_SERIAL_TAG
void get_board_serial(struct tag_serialnr *serialnr)
{
karo_fdt_enable_node(blob, "stk5led", 0);
fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
- fdt_fixup_ethernet(blob);
karo_fdt_fixup_touchpanel(blob, tx6_touchpanels,
ARRAY_SIZE(tx6_touchpanels));
projects / karo-tx-uboot.git / blobdiff