ARM: mach-shmobile: Add eMMC support through MMCIF on AG5EVM

Adding platform resources, PFC setting and release
reset pin for eMMC on ag5evm.

[damm@opensource.se: Add MSTP code for MMCIF]
Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 56 insertions, 2 deletions

diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index c6b152469972..2f135923e2bd 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -32,6 +32,8 @@
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sh_mmcif.h>
 
 #include <sound/sh_fsi.h>
 
@@ -146,10 +148,46 @@ static struct platform_device fsi_device = {
         },
 };
 
+static struct resource sh_mmcif_resources[] = {
+        [0] = {
+                .name   = "MMCIF",
+                .start  = 0xe6bd0000,
+                .end    = 0xe6bd00ff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = gic_spi(141),
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start  = gic_spi(140),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct sh_mmcif_plat_data sh_mmcif_platdata = {
+        .sup_pclk       = 0,
+        .ocr            = MMC_VDD_165_195,
+        .caps           = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+};
+
+static struct platform_device mmc_device = {
+        .name           = "sh_mmcif",
+        .id             = 0,
+        .dev            = {
+                .dma_mask               = NULL,
+                .coherent_dma_mask      = 0xffffffff,
+                .platform_data          = &sh_mmcif_platdata,
+        },
+        .num_resources  = ARRAY_SIZE(sh_mmcif_resources),
+        .resource       = sh_mmcif_resources,
+};
+
 static struct platform_device *ag5evm_devices[] __initdata = {
         &eth_device,
         &keysc_device,
         &fsi_device,
+        &mmc_device,
 };
 
 static struct map_desc ag5evm_io_desc[] __initdata = {
@@ -216,12 +254,26 @@ static void __init ag5evm_init(void)
         gpio_request(GPIO_FN_KEYOUT8, NULL);
         gpio_request(GPIO_FN_PORT149_KEYOUT9, NULL);
 
-        /* enable IC2 2 and 3 */
+        /* enable I2C channel 2 and 3 */
         gpio_request(GPIO_FN_PORT236_I2C_SDA2, NULL);
         gpio_request(GPIO_FN_PORT237_I2C_SCL2, NULL);
         gpio_request(GPIO_FN_PORT248_I2C_SCL3, NULL);
         gpio_request(GPIO_FN_PORT249_I2C_SDA3, NULL);
 
+        /* enable MMCIF */
+        gpio_request(GPIO_FN_MMCCLK0, NULL);
+        gpio_request(GPIO_FN_MMCCMD0_PU, NULL);
+        gpio_request(GPIO_FN_MMCD0_0, NULL);
+        gpio_request(GPIO_FN_MMCD0_1, NULL);
+        gpio_request(GPIO_FN_MMCD0_2, NULL);
+        gpio_request(GPIO_FN_MMCD0_3, NULL);
+        gpio_request(GPIO_FN_MMCD0_4, NULL);
+        gpio_request(GPIO_FN_MMCD0_5, NULL);
+        gpio_request(GPIO_FN_MMCD0_6, NULL);
+        gpio_request(GPIO_FN_MMCD0_7, NULL);
+        gpio_request(GPIO_PORT208, NULL); /* Reset */
+        gpio_direction_output(GPIO_PORT208, 1);
+
         /* enable SMSC911X */
         gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
         gpio_direction_input(GPIO_PORT144);
diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index 7d0dbe10c845..419581854a80 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -258,7 +258,7 @@ enum { MSTP001,
         MSTP125, MSTP116,
         MSTP219,
         MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
-        MSTP331, MSTP329, MSTP323,
+        MSTP331, MSTP329, MSTP323, MSTP312,
         MSTP411, MSTP410, MSTP403,
         MSTP_NR };
 
@@ -280,6 +280,7 @@ static struct clk mstp_clks[MSTP_NR] = {
         [MSTP331] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 31, 0), /* SCIFA6 */
         [MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
         [MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */
+        [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */
         [MSTP411] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */
         [MSTP410] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */
         [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
@@ -308,6 +309,7 @@ static struct clk_lookup lookups[] = {
         CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP331]), /* SCIFA6 */
         CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
         CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */
+        CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */
         CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* I2C3 */
         CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* I2C4 */
         CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */