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-rw-r--r--arch/arm/mach-omap2/msdi.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c
index ef2a692..fb5bc6c 100644
--- a/arch/arm/mach-omap2/msdi.c
+++ b/arch/arm/mach-omap2/msdi.c
@@ -22,11 +22,15 @@
*/
#include <linux/kernel.h>
+#include <linux/err.h>
#include <plat/omap_hwmod.h>
+#include <plat/omap_device.h>
#include <plat/mmc.h>
#include "common.h"
+#include "control.h"
+#include "mux.h"
/*
* MSDI_CON_OFFSET: offset in bytes of the MSDI IP block's CON register
@@ -86,3 +90,72 @@ int omap_msdi_reset(struct omap_hwmod *oh)
return 0;
}
+
+#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
+
+static inline void omap242x_mmc_mux(struct omap_mmc_platform_data
+ *mmc_controller)
+{
+ if ((mmc_controller->slots[0].switch_pin > 0) && \
+ (mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
+ omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
+ OMAP_PIN_INPUT_PULLUP);
+ if ((mmc_controller->slots[0].gpio_wp > 0) && \
+ (mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
+ omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
+ OMAP_PIN_INPUT_PULLUP);
+
+ omap_mux_init_signal("sdmmc_cmd", 0);
+ omap_mux_init_signal("sdmmc_clki", 0);
+ omap_mux_init_signal("sdmmc_clko", 0);
+ omap_mux_init_signal("sdmmc_dat0", 0);
+ omap_mux_init_signal("sdmmc_dat_dir0", 0);
+ omap_mux_init_signal("sdmmc_cmd_dir", 0);
+ if (mmc_controller->slots[0].caps & MMC_CAP_4_BIT_DATA) {
+ omap_mux_init_signal("sdmmc_dat1", 0);
+ omap_mux_init_signal("sdmmc_dat2", 0);
+ omap_mux_init_signal("sdmmc_dat3", 0);
+ omap_mux_init_signal("sdmmc_dat_dir1", 0);
+ omap_mux_init_signal("sdmmc_dat_dir2", 0);
+ omap_mux_init_signal("sdmmc_dat_dir3", 0);
+ }
+
+ /*
+ * Use internal loop-back in MMC/SDIO Module Input Clock
+ * selection
+ */
+ if (mmc_controller->slots[0].internal_clock) {
+ u32 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
+ v |= (1 << 24);
+ omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
+ }
+}
+
+void __init omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
+{
+ struct platform_device *pdev;
+ struct omap_hwmod *oh;
+ int id = 0;
+ char *oh_name = "msdi1";
+ char *dev_name = "mmci-omap";
+
+ if (!mmc_data[0]) {
+ pr_err("%s fails: Incomplete platform data\n", __func__);
+ return;
+ }
+
+ omap242x_mmc_mux(mmc_data[0]);
+
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("Could not look up %s\n", oh_name);
+ return;
+ }
+ pdev = omap_device_build(dev_name, id, oh, mmc_data[0],
+ sizeof(struct omap_mmc_platform_data), NULL, 0, 0);
+ if (IS_ERR(pdev))
+ WARN(1, "Can'd build omap_device for %s:%s.\n",
+ dev_name, oh->name);
+}
+
+#endif