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 <john.rigby@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Tom Rini <trini@ti.com>
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 @@
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 */