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>

2 files changed, 110 insertions, 4 deletions

diff --git a/board/st-ericsson/snowball/snowball.c b/board/st-ericsson/snowball/snowball.c
index 67fc5dfff..8c743c0ad 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 */
diff --git a/board/st-ericsson/u8500/u8500_href.c b/board/st-ericsson/u8500/u8500_href.c
index e75f8b435..f06120c62 100644
--- a/board/st-ericsson/u8500/u8500_href.c
+++ b/board/st-ericsson/u8500/u8500_href.c
@@ -18,6 +18,7 @@
 
 #include <config.h>
 #include <common.h>
+#include <malloc.h>
 #include <i2c.h>
 #include <asm/types.h>
 #include <asm/io.h>
@@ -375,12 +376,27 @@ static int u8500_mmci_board_init(void)
 
 int board_mmc_init(bd_t *bd)
 {
+	struct pl180_mmc_host *host;
+
 	if (u8500_mmci_board_init())
 		return -ENODEV;
 
-	if (arm_pl180_mmci_init())
-		return -ENODEV;
-	return 0;
+	host = malloc(sizeof(struct pl180_mmc_host));
+	if (!host)
+		return -ENOMEM;
+	memset(host, 0, sizeof(*host));
+
+	strcpy(host->name, "MMC");
+	host->base = (struct sdi_registers *)CONFIG_ARM_PL180_MMCI_BASE;
+	host->pwr_init = INIT_PWR;
+	host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V1 | SDI_CLKCR_CLKEN;
+	host->voltages = VOLTAGE_WINDOW_MMC;
+	host->caps = 0;
+	host->clock_in = ARM_MCLK;
+	host->clock_min = ARM_MCLK / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
+	host->clock_max = CONFIG_ARM_PL180_MMCI_CLOCK_FREQ;
+
+	return arm_pl180_mmci_init(host);
 }
 #endif