diff options
Diffstat (limited to 'board/freescale/mx28_evk')
| -rw-r--r-- | board/freescale/mx28_evk/mx28_evk.c | 130 |
1 files changed, 110 insertions, 20 deletions
diff --git a/board/freescale/mx28_evk/mx28_evk.c b/board/freescale/mx28_evk/mx28_evk.c index 8466a1e..cabb6f4 100644 --- a/board/freescale/mx28_evk/mx28_evk.c +++ b/board/freescale/mx28_evk/mx28_evk.c @@ -23,6 +23,9 @@ #include <common.h> #include <asm/arch/regs-pinctrl.h> #include <asm/arch/pinctrl.h> +#include <asm/arch/regs-clkctrl.h> +#include <mmc.h> +#include <imx_ssp_mmc.h> /* This should be removed after it's added into mach-types.h */ #ifndef MACH_TYPE_MX28EVK @@ -31,8 +34,10 @@ DECLARE_GLOBAL_DATA_PTR; +#ifdef CONFIG_IMX_SSP_MMC + /* MMC pins */ -static struct pin_desc mmc_pins_desc[] = { +static struct pin_desc mmc0_pins_desc[] = { { PINID_SSP0_DATA0, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, { PINID_SSP0_DATA1, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, { PINID_SSP0_DATA2, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, @@ -43,14 +48,39 @@ static struct pin_desc mmc_pins_desc[] = { { PINID_SSP0_DATA7, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, { PINID_SSP0_CMD, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, { PINID_SSP0_DETECT, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, - { PINID_SSP0_SCK, PIN_FUN1, PAD_8MA, PAD_3V3, 1 } + { PINID_SSP0_SCK, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, +}; + +static struct pin_desc mmc1_pins_desc[] = { + { PINID_SSP1_DATA0, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA1, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA2, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA3, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA4, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA5, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA6, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DATA7, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_CMD, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_DETECT, PIN_FUN2, PAD_8MA, PAD_3V3, 1 }, + { PINID_SSP1_SCK, PIN_FUN2, PAD_8MA, PAD_3V3, 1 } +}; + +static struct pin_group mmc0_pins = { + .pins = mmc0_pins_desc, + .nr_pins = ARRAY_SIZE(mmc0_pins_desc) }; -static struct pin_group mmc_pins = { - .pins = mmc_pins_desc, - .nr_pins = ARRAY_SIZE(mmc_pins_desc) +static struct pin_group mmc1_pins = { + .pins = mmc1_pins_desc, + .nr_pins = ARRAY_SIZE(mmc1_pins_desc) }; +struct imx_ssp_mmc_cfg ssp_mmc_cfg[2] = { + {REGS_SSP0_BASE, HW_CLKCTRL_SSP0, BM_CLKCTRL_CLKSEQ_BYPASS_SSP0}, + {REGS_SSP1_BASE, HW_CLKCTRL_SSP1, BM_CLKCTRL_CLKSEQ_BYPASS_SSP1}, +}; +#endif + /* ENET pins */ static struct pin_desc enet_pins_desc[] = { { PINID_ENET0_MDC, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }, @@ -90,29 +120,89 @@ int dram_init(void) return 0; } -u32 ssp_mmc_is_wp(void) +#ifdef CONFIG_IMX_SSP_MMC + +#ifdef CONFIG_DYNAMIC_MMC_DEVNO +int get_mmc_env_devno() { - return pin_gpio_get(PINID_SSP1_SCK); + unsigned long global_boot_mode; + + global_boot_mode = REG_RD_ADDR(GLOBAL_BOOT_MODE_ADDR); + return ((global_boot_mode & 0xf) == BOOT_MODE_SD1) ? 1 : 0; } +#endif -void ssp_mmc_board_init(void) +u32 ssp_mmc_is_wp(struct mmc *mmc) { - /* Set up MMC pins */ - pin_set_group(&mmc_pins); - - /* Power on the card slot */ - pin_set_type(PINID_PWM3, PIN_GPIO); - pin_gpio_direction(PINID_PWM3, 1); - pin_gpio_set(PINID_PWM3, 0); + return (mmc->block_dev.dev == 0) ? + pin_gpio_get(PINID_SSP0_GPIO_WP) : + pin_gpio_get(PINID_SSP1_GPIO_WP); +} - /* Wait 10 ms for card ramping up */ - udelay(10000); +int ssp_mmc_gpio_init(bd_t *bis) +{ + s32 status = 0; + u32 index = 0; + + for (index = 0; index < CONFIG_SYS_SSP_MMC_NUM; + ++index) { + switch (index) { + case 0: + /* Set up MMC pins */ + pin_set_group(&mmc0_pins); + + /* Power on the card slot 0 */ + pin_set_type(PINID_PWM3, PIN_GPIO); + pin_gpio_direction(PINID_PWM3, 1); + pin_gpio_set(PINID_PWM3, 0); + + /* Wait 10 ms for card ramping up */ + udelay(10000); + + /* Set up SD0 WP pin */ + pin_set_type(PINID_SSP0_GPIO_WP, PIN_GPIO); + pin_gpio_direction(PINID_SSP0_GPIO_WP, 0); + + break; + case 1: + /* Set up MMC pins */ + pin_set_group(&mmc1_pins); + + /* Power on the card slot 1 */ + pin_set_type(PINID_PWM4, PIN_GPIO); + pin_gpio_direction(PINID_PWM4, 1); + pin_gpio_set(PINID_PWM4, 0); + + /* Wait 10 ms for card ramping up */ + udelay(10000); + + /* Set up SD1 WP pin */ + pin_set_type(PINID_SSP1_GPIO_WP, PIN_GPIO); + pin_gpio_direction(PINID_SSP1_GPIO_WP, 0); + + break; + default: + printf("Warning: you configured more ssp mmc controller" + "(%d) as supported by the board(2)\n", + CONFIG_SYS_SSP_MMC_NUM); + return status; + } + status |= imx_ssp_mmc_initialize(bis, &ssp_mmc_cfg[index]); + } + + return status; +} - /* Set up WP pin */ - pin_set_type(PINID_SSP1_SCK, PIN_GPIO); - pin_gpio_direction(PINID_SSP1_SCK, 0); +int board_mmc_init(bd_t *bis) +{ + if (!ssp_mmc_gpio_init(bis)) + return 0; + else + return -1; } +#endif + void enet_board_init(void) { /* Set up ENET pins */ |