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Diffstat (limited to 'board/st-ericsson/snowball/snowball.c')
-rw-r--r--board/st-ericsson/snowball/snowball.c92
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 */