diff options
Diffstat (limited to 'board/st-ericsson/snowball/snowball.c')
| -rw-r--r-- | board/st-ericsson/snowball/snowball.c | 92 |
1 files changed, 91 insertions, 1 deletions
diff --git a/board/st-ericsson/snowball/snowball.c b/board/st-ericsson/snowball/snowball.c index 67fc5df..8c743c0 100644 --- a/board/st-ericsson/snowball/snowball.c +++ b/board/st-ericsson/snowball/snowball.c @@ -29,6 +29,9 @@ #include <asm/arch/hardware.h> #include <asm/arch/sys_proto.h> +#ifdef CONFIG_MMC +#include "../../../drivers/mmc/arm_pl180_mmci.h" +#endif #include "db8500_pins.h" /* @@ -250,9 +253,96 @@ int board_late_init(void) if ((raise_ab8500_gpio16() < 0)) printf("error: cant' raise GPIO16\n"); + return 0; +} + #ifdef CONFIG_MMC +/* + * emmc_host_init - initialize the emmc controller. + * Configure GPIO settings, set initial clock and power for emmc slot. + * Initialize mmc struct and register with mmc framework. + */ +static int emmc_host_init(void) +{ + struct pl180_mmc_host *host; + + host = malloc(sizeof(struct pl180_mmc_host)); + if (!host) + return -ENOMEM; + memset(host, 0, sizeof(*host)); + + host->base = (struct sdi_registers *)CFG_EMMC_BASE; + host->pwr_init = SDI_PWR_OPD | SDI_PWR_PWRCTRL_ON; + host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 | + SDI_CLKCR_CLKEN | SDI_CLKCR_HWFC_EN; + strcpy(host->name, "EMMC"); + host->caps = MMC_MODE_8BIT | MMC_MODE_HS | MMC_MODE_HS_52MHz; + host->voltages = VOLTAGE_WINDOW_MMC; + host->clock_min = ARM_MCLK / (2 + SDI_CLKCR_CLKDIV_INIT_V2); + host->clock_max = ARM_MCLK / 2; + host->clock_in = ARM_MCLK; + host->version2 = 1; + + return arm_pl180_mmci_init(host); +} + +/* + * mmc_host_init - initialize the external mmc controller. + * Configure GPIO settings, set initial clock and power for mmc slot. + * Initialize mmc struct and register with mmc framework. + */ +static int mmc_host_init(void) +{ + struct pl180_mmc_host *host; + u32 sdi_u32; + + host = malloc(sizeof(struct pl180_mmc_host)); + if (!host) + return -ENOMEM; + memset(host, 0, sizeof(*host)); + + host->base = (struct sdi_registers *)CFG_MMC_BASE; + sdi_u32 = 0xBF; + writel(sdi_u32, &host->base->power); + host->pwr_init = 0xBF; + host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V2 | + SDI_CLKCR_CLKEN | SDI_CLKCR_HWFC_EN; + strcpy(host->name, "MMC"); + host->caps = MMC_MODE_8BIT; + host->b_max = 0; + host->voltages = VOLTAGE_WINDOW_SD; + host->clock_min = ARM_MCLK / (2 + SDI_CLKCR_CLKDIV_INIT_V2); + host->clock_max = ARM_MCLK / 2; + host->clock_in = ARM_MCLK; + host->version2 = 1; + + return arm_pl180_mmci_init(host); +} + +/* + * board_mmc_init - initialize all the mmc/sd host controllers. + * Called by generic mmc framework. + */ +int board_mmc_init(bd_t *bis) +{ + int error; + + (void) bis; + + error = emmc_host_init(); + if (error) { + printf("emmc_host_init() %d\n", error); + return -1; + } + u8500_mmc_power_init(); -#endif /* CONFIG_MMC */ + + error = mmc_host_init(); + if (error) { + printf("mmc_host_init() %d\n", error); + return -1; + } return 0; } +#endif /* CONFIG_MMC */ |