ARM: OMAP3LOGIC: Adding SDMMC support

Add low-level initialization for hsmmc controller for
LogicPD's OMAP 3530 LV SOM and OMAP 35x Torpedo board.

Signed-off-by: Tim Nordell <tim.nordell@logicpd.com>
[tony@atomide.com: updated for the recent mmc platform init changes]
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index ac3b0f7..8b60360 100644 (file)
--- a/arch/arm/mach-omap2/board-omap3logic.c
+++ b/arch/arm/mach-omap2/board-omap3logic.c
@@ -26,6 +26,7 @@
 #include <linux/regulator/machine.h>
 
 #include <linux/i2c/twl.h>
+#include <linux/mmc/host.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -33,6 +34,7 @@
 #include <asm/mach/map.h>
 
 #include "mux.h"
+#include "hsmmc.h"
 
 #include <plat/mux.h>
 #include <plat/board.h>
@@ -87,6 +89,7 @@ static struct twl4030_platform_data omap3logic_twldata = {
 
        /* platform_data for children goes here */
        .gpio           = &omap3logic_gpio_data,
+       .vmmc1          = &omap3logic_vmmc1,
 };
 
 static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = {
@@ -105,6 +108,40 @@ static int __init omap3logic_i2c_init(void)
        return 0;
 }
 
+static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
+       {
+               .name           = "external",
+               .mmc            = 1,
+               .caps           = MMC_CAP_4_BIT_DATA,
+               .gpio_cd        = -EINVAL,
+               .gpio_wp        = -EINVAL,
+       },
+       {}      /* Terminator */
+};
+
+static void __init board_mmc_init(void)
+{
+       if (machine_is_omap3530_lv_som()) {
+               /* OMAP3530 LV SOM board */
+               board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
+               board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
+               omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
+               omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
+       } else if (machine_is_omap3_torpedo()) {
+               /* OMAP3 Torpedo board */
+               board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
+               omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
+       } else {
+               /* unsupported board */
+               printk(KERN_ERR "%s(): unknown machine type\n", __func__);
+               return;
+       }
+
+       omap2_hsmmc_init(board_mmc_info);
+       /* link regulators to MMC adapters */
+       omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
+}
+
 static void __init omap3logic_init_irq(void)
 {
        omap2_init_common_hw(NULL, NULL);
@@ -116,7 +153,7 @@ static void __init omap3logic_init(void)
 {
        omap3logic_i2c_init();
        omap_serial_init();
-
+       board_mmc_init();
        /* Ensure SDRC pins are mux'd for self-refresh */
        omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
        omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);