ARM: shmobile: streamline mackerel SD and MMC devices

This patch fixes the following issues with SD and MMC interfaces on mackerel:
1. replace custom card-detection functions with standard GPIO CD API
2. resources don't have to be numbered
3. add SDHI interrupt names
4. remove OCR masks, where regulators are used
5. only specify SDHI CD interrupts on interfaces where a CD pin is present -
   SDHI0
6. don't instantiate an MMCIF device and initialise MMCIF pins if SDHI1 is
   selected

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 3004083fd9033b942d454009df86277ac8d2df11..45e04b90ee844ab6b41aecd91d6a9af1b04a593f 100644 (file)
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -966,15 +966,6 @@ static struct platform_device nand_flash_device = {
        },
 };
 
-/*
- * The card detect pin of the top SD/MMC slot (CN7) is active low and is
- * connected to GPIO A22 of SH7372 (GPIO_PORT41).
- */
-static int slot_cn7_get_cd(struct platform_device *pdev)
-{
-       return !gpio_get_value(GPIO_PORT41);
-}
-
 /* SDHI0 */
 static struct sh_mobile_sdhi_info sdhi0_info = {
        .dma_slave_tx   = SHDMA_SLAVE_SDHI0_TX,
@@ -985,21 +976,21 @@ static struct sh_mobile_sdhi_info sdhi0_info = {
 };
 
 static struct resource sdhi0_resources[] = {
-       [0] = {
+       {
                .name   = "SDHI0",
                .start  = 0xe6850000,
                .end    = 0xe68500ff,
                .flags  = IORESOURCE_MEM,
-       },
-       [1] = {
+       }, {
+               .name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
                .start  = evt2irq(0x0e00) /* SDHI0_SDHI0I0 */,
                .flags  = IORESOURCE_IRQ,
-       },
-       [2] = {
+       }, {
+               .name   = SH_MOBILE_SDHI_IRQ_SDCARD,
                .start  = evt2irq(0x0e20) /* SDHI0_SDHI0I1 */,
                .flags  = IORESOURCE_IRQ,
-       },
-       [3] = {
+       }, {
+               .name   = SH_MOBILE_SDHI_IRQ_SDIO,
                .start  = evt2irq(0x0e40) /* SDHI0_SDHI0I2 */,
                .flags  = IORESOURCE_IRQ,
        },
@@ -1017,34 +1008,28 @@ static struct platform_device sdhi0_device = {
 
 #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
 /* SDHI1 */
+
+/* GPIO_PORT41 can trigger IRQ8, but it is used by USBHS1, we have to poll */
 static struct sh_mobile_sdhi_info sdhi1_info = {
        .dma_slave_tx   = SHDMA_SLAVE_SDHI1_TX,
        .dma_slave_rx   = SHDMA_SLAVE_SDHI1_RX,
-       .tmio_ocr_mask  = MMC_VDD_165_195,
-       .tmio_flags     = TMIO_MMC_WRPROTECT_DISABLE,
+       .tmio_flags     = TMIO_MMC_WRPROTECT_DISABLE | TMIO_MMC_USE_GPIO_CD,
        .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
                          MMC_CAP_NEEDS_POLL,
-       .get_cd         = slot_cn7_get_cd,
+       .cd_gpio        = GPIO_PORT41,
 };
 
 static struct resource sdhi1_resources[] = {
-       [0] = {
+       {
                .name   = "SDHI1",
                .start  = 0xe6860000,
                .end    = 0xe68600ff,
                .flags  = IORESOURCE_MEM,
-       },
-       [1] = {
-               .name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
-               .start  = evt2irq(0x0e80), /* SDHI1_SDHI1I0 */
-               .flags  = IORESOURCE_IRQ,
-       },
-       [2] = {
+       }, {
                .name   = SH_MOBILE_SDHI_IRQ_SDCARD,
                .start  = evt2irq(0x0ea0), /* SDHI1_SDHI1I1 */
                .flags  = IORESOURCE_IRQ,
-       },
-       [3] = {
+       }, {
                .name   = SH_MOBILE_SDHI_IRQ_SDIO,
                .start  = evt2irq(0x0ec0), /* SDHI1_SDHI1I2 */
                .flags  = IORESOURCE_IRQ,
@@ -1062,43 +1047,32 @@ static struct platform_device sdhi1_device = {
 };
 #endif
 
+/* SDHI2 */
+
 /*
  * The card detect pin of the top SD/MMC slot (CN23) is active low and is
  * connected to GPIO SCIFB_SCK of SH7372 (GPIO_PORT162).
  */
-static int slot_cn23_get_cd(struct platform_device *pdev)
-{
-       return !gpio_get_value(GPIO_PORT162);
-}
-
-/* SDHI2 */
 static struct sh_mobile_sdhi_info sdhi2_info = {
        .dma_slave_tx   = SHDMA_SLAVE_SDHI2_TX,
        .dma_slave_rx   = SHDMA_SLAVE_SDHI2_RX,
-       .tmio_flags     = TMIO_MMC_WRPROTECT_DISABLE,
+       .tmio_flags     = TMIO_MMC_WRPROTECT_DISABLE | TMIO_MMC_USE_GPIO_CD,
        .tmio_caps      = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
                          MMC_CAP_NEEDS_POLL,
-       .get_cd         = slot_cn23_get_cd,
+       .cd_gpio        = GPIO_PORT162,
 };
 
 static struct resource sdhi2_resources[] = {
-       [0] = {
+       {
                .name   = "SDHI2",
                .start  = 0xe6870000,
                .end    = 0xe68700ff,
                .flags  = IORESOURCE_MEM,
-       },
-       [1] = {
-               .name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
-               .start  = evt2irq(0x1200), /* SDHI2_SDHI2I0 */
-               .flags  = IORESOURCE_IRQ,
-       },
-       [2] = {
+       }, {
                .name   = SH_MOBILE_SDHI_IRQ_SDCARD,
                .start  = evt2irq(0x1220), /* SDHI2_SDHI2I1 */
                .flags  = IORESOURCE_IRQ,
-       },
-       [3] = {
+       }, {
                .name   = SH_MOBILE_SDHI_IRQ_SDIO,
                .start  = evt2irq(0x1240), /* SDHI2_SDHI2I2 */
                .flags  = IORESOURCE_IRQ,
@@ -1137,11 +1111,12 @@ static struct resource sh_mmcif_resources[] = {
 
 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,
+       .use_cd_gpio    = true,
+       /* card detect pin for SD/MMC slot (CN7) */
+       .cd_gpio        = GPIO_PORT41,
        .slave_id_tx    = SHDMA_SLAVE_MMCIF_TX,
        .slave_id_rx    = SHDMA_SLAVE_MMCIF_RX,
 };
@@ -1266,9 +1241,10 @@ static struct platform_device *mackerel_devices[] __initdata = {
        &sdhi0_device,
 #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
        &sdhi1_device,
+#else
+       &sh_mmcif_device,
 #endif
        &sdhi2_device,
-       &sh_mmcif_device,
        &ceu_device,
        &mackerel_camera,
        &hdmi_device,
@@ -1348,10 +1324,11 @@ static void __init mackerel_init(void)
                { "A3SP", &usbhs0_device, },
                { "A3SP", &usbhs1_device, },
                { "A3SP", &nand_flash_device, },
-               { "A3SP", &sh_mmcif_device, },
                { "A3SP", &sdhi0_device, },
 #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
                { "A3SP", &sdhi1_device, },
+#else
+               { "A3SP", &sh_mmcif_device, },
 #endif
                { "A3SP", &sdhi2_device, },
                { "A4R", &ceu_device, },
@@ -1477,21 +1454,7 @@ 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_one(GPIO_PORT41, GPIOF_IN, NULL);
-
-       /* enable SDHI2 */
-       gpio_request(GPIO_FN_SDHICMD2, NULL);
-       gpio_request(GPIO_FN_SDHICLK2, NULL);
-       gpio_request(GPIO_FN_SDHID2_3, NULL);
-       gpio_request(GPIO_FN_SDHID2_2, NULL);
-       gpio_request(GPIO_FN_SDHID2_1, NULL);
-       gpio_request(GPIO_FN_SDHID2_0, NULL);
-
-       /* card detect pin for microSD slot (CN23) */
-       gpio_request_one(GPIO_PORT162, GPIOF_IN, NULL);
-
+#else
        /* MMCIF */
        gpio_request(GPIO_FN_MMCD0_0, NULL);
        gpio_request(GPIO_FN_MMCD0_1, NULL);
@@ -1503,6 +1466,15 @@ static void __init mackerel_init(void)
        gpio_request(GPIO_FN_MMCD0_7, NULL);
        gpio_request(GPIO_FN_MMCCMD0, NULL);
        gpio_request(GPIO_FN_MMCCLK0, NULL);
+#endif
+
+       /* enable SDHI2 */
+       gpio_request(GPIO_FN_SDHICMD2, NULL);
+       gpio_request(GPIO_FN_SDHICLK2, NULL);
+       gpio_request(GPIO_FN_SDHID2_3, NULL);
+       gpio_request(GPIO_FN_SDHID2_2, NULL);
+       gpio_request(GPIO_FN_SDHID2_1, NULL);
+       gpio_request(GPIO_FN_SDHID2_0, NULL);
 
        /* FLCTL */
        gpio_request(GPIO_FN_D0_NAF0, NULL);