ARM: mxs: Get boot mode from OCRAM

[karo-tx-uboot.git] / arch / arm / cpu / arm926ejs / mxs / spl_boot.c

diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
index fb6d6d24f5c534989a1cd612ae83bee39e68f37c..7754a103809ed421000f497dc61da193e278a194 100644 (file)
--- a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c
@@ -52,13 +52,6 @@ static const iomux_cfg_t iomux_boot[] = {
        MX23_PAD_LCD_D03__GPIO_1_3 | MUX_CONFIG_BOOTMODE_PAD,
        MX23_PAD_LCD_D04__GPIO_1_4 | MUX_CONFIG_BOOTMODE_PAD,
        MX23_PAD_LCD_D05__GPIO_1_5 | MUX_CONFIG_BOOTMODE_PAD,
-#elif defined(CONFIG_SOC_MX28)
-       MX28_PAD_LCD_D00__GPIO_1_0 | MUX_CONFIG_BOOTMODE_PAD,
-       MX28_PAD_LCD_D01__GPIO_1_1 | MUX_CONFIG_BOOTMODE_PAD,
-       MX28_PAD_LCD_D02__GPIO_1_2 | MUX_CONFIG_BOOTMODE_PAD,
-       MX28_PAD_LCD_D03__GPIO_1_3 | MUX_CONFIG_BOOTMODE_PAD,
-       MX28_PAD_LCD_D04__GPIO_1_4 | MUX_CONFIG_BOOTMODE_PAD,
-       MX28_PAD_LCD_D05__GPIO_1_5 | MUX_CONFIG_BOOTMODE_PAD,
 #endif
 };
 
@@ -68,10 +61,10 @@ static uint8_t mxs_get_bootmode_index(void)
        int i;
        uint8_t masked;
 
+#if defined(CONFIG_SOC_MX23)
        /* Setup IOMUX of bootmode pads to GPIO */
        mxs_iomux_setup_multiple_pads(iomux_boot, ARRAY_SIZE(iomux_boot));
 
-#if defined(CONFIG_SOC_MX23)
        /* Setup bootmode pins as GPIO input */
        gpio_direction_input(MX23_PAD_LCD_D00__GPIO_1_0);
        gpio_direction_input(MX23_PAD_LCD_D01__GPIO_1_1);
@@ -86,21 +79,11 @@ static uint8_t mxs_get_bootmode_index(void)
        bootmode |= (gpio_get_value(MX23_PAD_LCD_D03__GPIO_1_3) ? 1 : 0) << 3;
        bootmode |= (gpio_get_value(MX23_PAD_LCD_D05__GPIO_1_5) ? 1 : 0) << 5;
 #elif defined(CONFIG_SOC_MX28)
-       /* Setup bootmode pins as GPIO input */
-       gpio_direction_input(MX28_PAD_LCD_D00__GPIO_1_0);
-       gpio_direction_input(MX28_PAD_LCD_D01__GPIO_1_1);
-       gpio_direction_input(MX28_PAD_LCD_D02__GPIO_1_2);
-       gpio_direction_input(MX28_PAD_LCD_D03__GPIO_1_3);
-       gpio_direction_input(MX28_PAD_LCD_D04__GPIO_1_4);
-       gpio_direction_input(MX28_PAD_LCD_D05__GPIO_1_5);
-
-       /* Read bootmode pads */
-       bootmode |= (gpio_get_value(MX28_PAD_LCD_D00__GPIO_1_0) ? 1 : 0) << 0;
-       bootmode |= (gpio_get_value(MX28_PAD_LCD_D01__GPIO_1_1) ? 1 : 0) << 1;
-       bootmode |= (gpio_get_value(MX28_PAD_LCD_D02__GPIO_1_2) ? 1 : 0) << 2;
-       bootmode |= (gpio_get_value(MX28_PAD_LCD_D03__GPIO_1_3) ? 1 : 0) << 3;
-       bootmode |= (gpio_get_value(MX28_PAD_LCD_D04__GPIO_1_4) ? 1 : 0) << 4;
-       bootmode |= (gpio_get_value(MX28_PAD_LCD_D05__GPIO_1_5) ? 1 : 0) << 5;
+       /* The global boot mode will be detected by ROM code and its value
+        * is stored at the fixed address 0x00019BF0 in OCRAM.
+        */
+#define GLOBAL_BOOT_MODE_ADDR 0x00019BF0
+       bootmode = __raw_readl(GLOBAL_BOOT_MODE_ADDR);
 #endif
 
        for (i = 0; i < ARRAY_SIZE(mxs_boot_modes); i++) {