From: Yusuke Goda Date: Tue, 14 Dec 2010 05:18:03 +0000 (+0900) Subject: ARM: mach-shmobile: mackerel: Add sdhi support X-Git-Tag: v2.6.38-rc1~462^2~15^4~5 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6dff7da2adbba9c5cd1b3a3f67191fe3471c663c;p=karo-tx-linux.git ARM: mach-shmobile: mackerel: Add sdhi support Signed-off-by: Yusuke Goda Signed-off-by: Paul Mundt --- diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index 3e30a5250414..f62f9b9ea5f2 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -31,6 +31,9 @@ #include #include #include +#include +#include +#include #include #include #include @@ -138,6 +141,38 @@ * CN31 is used as Host in Linux. */ +/* + * SDHI0 (CN12) + * + * SW56 : OFF + * + */ + +/* MMC /SDHI1 (CN7) + * + * I/O voltage : 1.8v + * + * Power voltage : 1.8v or 3.3v + * J22 : select power voltage + * 1-2 pin : 1.8v + * 2-3 pin : 3.3v + * + * SW1 | SW33 + * | bit1 | bit2 | bit3 | bit4 + * -------------+------+------+------+------- + * MMC0 OFF | OFF | ON | ON | X + * MMC1 ON | OFF | ON | X | ON + * SDHI1 OFF | ON | X | OFF | ON + * + */ + +/* + * SDHI2 (CN23) + * + * microSD card sloct + * + */ + /* * FIXME !! * @@ -404,6 +439,114 @@ static struct platform_device fsi_ak4643_device = { .name = "sh_fsi2_a_ak4643", }; +/* + * 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) +{ + if (gpio_is_valid(GPIO_PORT41)) + return !gpio_get_value(GPIO_PORT41); + else + return -ENXIO; +} + +/* SDHI0 */ +static struct sh_mobile_sdhi_info sdhi0_info = { + .dma_slave_tx = SHDMA_SLAVE_SDHI0_TX, + .dma_slave_rx = SHDMA_SLAVE_SDHI0_RX, + .tmio_caps = MMC_CAP_SD_HIGHSPEED, +}; + +static struct resource sdhi0_resources[] = { + [0] = { + .name = "SDHI0", + .start = 0xe6850000, + .end = 0xe68501ff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = evt2irq(0x0e00) /* SDHI0 */, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sdhi0_device = { + .name = "sh_mobile_sdhi", + .num_resources = ARRAY_SIZE(sdhi0_resources), + .resource = sdhi0_resources, + .id = 0, + .dev = { + .platform_data = &sdhi0_info, + }, +}; + +/* SDHI1 */ +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_caps = MMC_CAP_SD_HIGHSPEED | + MMC_CAP_NEEDS_POLL, + .get_cd = slot_cn7_get_cd, +}; + +static struct resource sdhi1_resources[] = { + [0] = { + .name = "SDHI1", + .start = 0xe6860000, + .end = 0xe68601ff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = evt2irq(0x0e80), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sdhi1_device = { + .name = "sh_mobile_sdhi", + .num_resources = ARRAY_SIZE(sdhi1_resources), + .resource = sdhi1_resources, + .id = 1, + .dev = { + .platform_data = &sdhi1_info, + }, +}; + +/* 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_caps = MMC_CAP_SD_HIGHSPEED | + MMC_CAP_NEEDS_POLL, +}; + +static struct resource sdhi2_resources[] = { + [0] = { + .name = "SDHI2", + .start = 0xe6870000, + .end = 0xe68701ff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = evt2irq(0x1200), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sdhi2_device = { + .name = "sh_mobile_sdhi", + .num_resources = ARRAY_SIZE(sdhi2_resources), + .resource = sdhi2_resources, + .id = 2, + .dev = { + .platform_data = &sdhi2_info, + }, +}; + static struct platform_device *mackerel_devices[] __initdata = { &nor_flash_device, &smc911x_device, @@ -412,6 +555,9 @@ static struct platform_device *mackerel_devices[] __initdata = { &leds_device, &fsi_device, &fsi_ak4643_device, + &sdhi0_device, + &sdhi1_device, + &sdhi2_device, }; /* Keypad Initialization */ @@ -567,6 +713,35 @@ static void __init mackerel_init(void) gpio_request(GPIO_FN_IRQ21, NULL); set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH); + /* enable SDHI0 */ + gpio_request(GPIO_FN_SDHICD0, NULL); + gpio_request(GPIO_FN_SDHIWP0, NULL); + gpio_request(GPIO_FN_SDHICMD0, NULL); + gpio_request(GPIO_FN_SDHICLK0, NULL); + gpio_request(GPIO_FN_SDHID0_3, NULL); + gpio_request(GPIO_FN_SDHID0_2, NULL); + gpio_request(GPIO_FN_SDHID0_1, NULL); + gpio_request(GPIO_FN_SDHID0_0, NULL); + + /* enable SDHI1 */ + gpio_request(GPIO_FN_SDHICMD1, NULL); + gpio_request(GPIO_FN_SDHICLK1, NULL); + gpio_request(GPIO_FN_SDHID1_3, NULL); + gpio_request(GPIO_FN_SDHID1_2, NULL); + gpio_request(GPIO_FN_SDHID1_1, NULL); + gpio_request(GPIO_FN_SDHID1_0, NULL); + /* card detect pin for MMC slot (CN7) */ + gpio_request(GPIO_PORT41, NULL); + gpio_direction_input(GPIO_PORT41); + + /* 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); + i2c_register_board_info(0, i2c0_devices, ARRAY_SIZE(i2c0_devices)); i2c_register_board_info(1, i2c1_devices,