ARM: mach-shmobile: mackerel: Add mmcif support

v2
 Add comment of J22 and OCR field.

Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 66 insertions, 1 deletions

diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index f62f9b9ea5f2..fd46f067e8b2 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -34,6 +34,7 @@
 #include <linux/mfd/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
+#include <linux/mmc/sh_mmcif.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
@@ -153,10 +154,14 @@
  * I/O voltage : 1.8v
  *
  * Power voltage : 1.8v or 3.3v
- *  J22 : select power voltage
+ *  J22 : select power voltage *1
  *      1-2 pin : 1.8v
  *      2-3 pin : 3.3v
  *
+ * *1
+ * Please change J22 depends the card to be used.
+ * MMC's OCR field set to support either voltage for the card inserted.
+ *
  *      SW1     |       SW33
  *              | bit1 | bit2 | bit3 | bit4
  * -------------+------+------+------+-------
@@ -481,6 +486,7 @@ static struct platform_device sdhi0_device = {
         },
 };
 
+#if !defined(CONFIG_MMC_SH_MMCIF)
 /* SDHI1 */
 static struct sh_mobile_sdhi_info sdhi1_info = {
         .dma_slave_tx   = SHDMA_SLAVE_SDHI1_TX,
@@ -514,6 +520,7 @@ static struct platform_device sdhi1_device = {
                 .platform_data  = &sdhi1_info,
         },
 };
+#endif
 
 /* SDHI2 */
 static struct sh_mobile_sdhi_info sdhi2_info = {
@@ -547,6 +554,47 @@ static struct platform_device sdhi2_device = {
         },
 };
 
+/* SH_MMCIF */
+static struct resource sh_mmcif_resources[] = {
+        [0] = {
+                .name   = "MMCIF",
+                .start  = 0xE6BD0000,
+                .end    = 0xE6BD00FF,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                /* MMC ERR */
+                .start  = evt2irq(0x1ac0),
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                /* MMC NOR */
+                .start  = evt2irq(0x1ae0),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct sh_mmcif_plat_data sh_mmcif_plat = {
+        .sup_pclk       = 0,
+        .ocr            = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34,
+        .caps           = MMC_CAP_4_BIT_DATA |
+                          MMC_CAP_8_BIT_DATA |
+                          MMC_CAP_NEEDS_POLL,
+        .get_cd         = slot_cn7_get_cd,
+};
+
+static struct platform_device sh_mmcif_device = {
+        .name           = "sh_mmcif",
+        .id             = 0,
+        .dev            = {
+                .dma_mask               = NULL,
+                .coherent_dma_mask      = 0xffffffff,
+                .platform_data          = &sh_mmcif_plat,
+        },
+        .num_resources  = ARRAY_SIZE(sh_mmcif_resources),
+        .resource       = sh_mmcif_resources,
+};
+
 static struct platform_device *mackerel_devices[] __initdata = {
         &nor_flash_device,
         &smc911x_device,
@@ -556,8 +604,11 @@ static struct platform_device *mackerel_devices[] __initdata = {
         &fsi_device,
         &fsi_ak4643_device,
         &sdhi0_device,
+#if !defined(CONFIG_MMC_SH_MMCIF)
         &sdhi1_device,
+#endif
         &sdhi2_device,
+        &sh_mmcif_device,
 };
 
 /* Keypad Initialization */
@@ -723,6 +774,7 @@ static void __init mackerel_init(void)
         gpio_request(GPIO_FN_SDHID0_1, NULL);
         gpio_request(GPIO_FN_SDHID0_0, NULL);
 
+#if !defined(CONFIG_MMC_SH_MMCIF)
         /* enable SDHI1 */
         gpio_request(GPIO_FN_SDHICMD1, NULL);
         gpio_request(GPIO_FN_SDHICLK1, NULL);
@@ -730,6 +782,7 @@ static void __init mackerel_init(void)
         gpio_request(GPIO_FN_SDHID1_2, NULL);
         gpio_request(GPIO_FN_SDHID1_1, NULL);
         gpio_request(GPIO_FN_SDHID1_0, NULL);
+#endif
         /* card detect pin for MMC slot (CN7) */
         gpio_request(GPIO_PORT41, NULL);
         gpio_direction_input(GPIO_PORT41);
@@ -742,6 +795,18 @@ static void __init mackerel_init(void)
         gpio_request(GPIO_FN_SDHID2_1, NULL);
         gpio_request(GPIO_FN_SDHID2_0, NULL);
 
+        /* MMCIF */
+        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_FN_MMCCMD0, NULL);
+        gpio_request(GPIO_FN_MMCCLK0, NULL);
+
         i2c_register_board_info(0, i2c0_devices,
                                 ARRAY_SIZE(i2c0_devices));
         i2c_register_board_info(1, i2c1_devices,