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| author | Otavio Salvador <otavio@ossystems.com.br> | 2013-01-11 03:19:10 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-01-21 12:05:21 +0100 |
| commit | f942f7d962694a1e0e186367d11520c9902224cb (patch) | |
| tree | 73055928d5fd9a00c92e6d604281b0743278928e | |
| parent | a8b2884d947a664bbbfff5f486580c155b730977 (diff) | |
| download | u-boot-imx-f942f7d962694a1e0e186367d11520c9902224cb.zip u-boot-imx-f942f7d962694a1e0e186367d11520c9902224cb.tar.gz u-boot-imx-f942f7d962694a1e0e186367d11520c9902224cb.tar.bz2 | |
mx23: SPL: Add boot mode support
This adds the boot mode support for i.MX23 processors.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mxs/spl_boot.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c index 1b8502e..7e70440 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_boot.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_boot.c @@ -51,12 +51,21 @@ void early_delay(int delay) #define MUX_CONFIG_BOOTMODE_PAD (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL) static const iomux_cfg_t iomux_boot[] = { +#if defined(CONFIG_MX23) + MX23_PAD_LCD_D00__GPIO_1_0 | MUX_CONFIG_BOOTMODE_PAD, + MX23_PAD_LCD_D01__GPIO_1_1 | MUX_CONFIG_BOOTMODE_PAD, + MX23_PAD_LCD_D02__GPIO_1_2 | MUX_CONFIG_BOOTMODE_PAD, + 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_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 }; static uint8_t mxs_get_bootmode_index(void) @@ -68,6 +77,21 @@ static uint8_t mxs_get_bootmode_index(void) /* Setup IOMUX of bootmode pads to GPIO */ mxs_iomux_setup_multiple_pads(iomux_boot, ARRAY_SIZE(iomux_boot)); +#if defined(CONFIG_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); + gpio_direction_input(MX23_PAD_LCD_D02__GPIO_1_2); + gpio_direction_input(MX23_PAD_LCD_D03__GPIO_1_3); + gpio_direction_input(MX23_PAD_LCD_D05__GPIO_1_5); + + /* Read bootmode pads */ + bootmode |= (gpio_get_value(MX23_PAD_LCD_D00__GPIO_1_0) ? 1 : 0) << 0; + bootmode |= (gpio_get_value(MX23_PAD_LCD_D01__GPIO_1_1) ? 1 : 0) << 1; + bootmode |= (gpio_get_value(MX23_PAD_LCD_D02__GPIO_1_2) ? 1 : 0) << 2; + 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_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); @@ -83,6 +107,7 @@ static uint8_t mxs_get_bootmode_index(void) 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; +#endif for (i = 0; i < ARRAY_SIZE(mxs_boot_modes); i++) { masked = bootmode & mxs_boot_modes[i].boot_mask; |