From 10ed93dcddeede4e305235367c402fb99e063ef3 Mon Sep 17 00:00:00 2001 From: John Rigby Date: Tue, 31 Jul 2012 08:59:31 +0000 Subject: u8500: Separating mmc config parameters from driver Configuration in vexpress and u8500.v1 is different from what is needed in u8500.v2. As such, card configuration specifics need to reside in the board file rather than the driver. Signed-off-by: John Rigby Signed-off-by: Mathieu Poirier Signed-off-by: Tom Rini --- board/st-ericsson/snowball/snowball.c | 92 ++++++++++++++++++++++++++++++++++- 1 file changed, 91 insertions(+), 1 deletion(-) (limited to 'board/st-ericsson/snowball/snowball.c') diff --git a/board/st-ericsson/snowball/snowball.c b/board/st-ericsson/snowball/snowball.c index 67fc5dfff1..8c743c0adb 100644 --- a/board/st-ericsson/snowball/snowball.c +++ b/board/st-ericsson/snowball/snowball.c @@ -29,6 +29,9 @@ #include #include +#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 */ -- cgit