From 88660351cb6daa85baf9700f12dff3af564dc14a Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 19 Jun 2006 19:58:51 +0100 Subject: [ARM] 3561/1: Poodle: Correct the MMC/SD power control Patch from Richard Purdie Correct the Poodle power control for the MMC/SD port. Also add write protection switch support. Signed-off-by: Richard Purdie Signed-off-by: Russell King --- arch/arm/mach-pxa/poodle.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-pxa') diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index 1d516d317e8..234877a09df 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -143,7 +144,9 @@ static int poodle_mci_init(struct device *dev, irqreturn_t (*poodle_detect_int)( pxa_gpio_mode(GPIO6_MMCCLK_MD); pxa_gpio_mode(GPIO8_MMCCS0_MD); pxa_gpio_mode(POODLE_GPIO_nSD_DETECT | GPIO_IN); + pxa_gpio_mode(POODLE_GPIO_nSD_WP | GPIO_IN); pxa_gpio_mode(POODLE_GPIO_SD_PWR | GPIO_OUT); + pxa_gpio_mode(POODLE_GPIO_SD_PWR1 | GPIO_OUT); poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250); @@ -162,12 +165,22 @@ static void poodle_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; - if (( 1 << vdd) & p_d->ocr_mask) - GPSR1 = GPIO_bit(POODLE_GPIO_SD_PWR); - else - GPCR1 = GPIO_bit(POODLE_GPIO_SD_PWR); + if (( 1 << vdd) & p_d->ocr_mask) { + GPSR(POODLE_GPIO_SD_PWR) = GPIO_bit(POODLE_GPIO_SD_PWR); + mdelay(2); + GPSR(POODLE_GPIO_SD_PWR1) = GPIO_bit(POODLE_GPIO_SD_PWR1); + } else { + GPCR(POODLE_GPIO_SD_PWR1) = GPIO_bit(POODLE_GPIO_SD_PWR1); + GPCR(POODLE_GPIO_SD_PWR) = GPIO_bit(POODLE_GPIO_SD_PWR); + } +} + +static int poodle_mci_get_ro(struct device *dev) +{ + return GPLR(POODLE_GPIO_nSD_WP) & GPIO_bit(POODLE_GPIO_nSD_WP); } + static void poodle_mci_exit(struct device *dev, void *data) { free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data); @@ -176,6 +189,7 @@ static void poodle_mci_exit(struct device *dev, void *data) static struct pxamci_platform_data poodle_mci_platform_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .init = poodle_mci_init, + .get_ro = poodle_mci_get_ro, .setpower = poodle_mci_setpower, .exit = poodle_mci_exit, }; -- cgit v1.2.3