diff options
| author | Richard Purdie <rpurdie@rpsys.net> | 2006-06-19 19:58:51 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-19 19:58:51 +0100 |
| commit | 88660351cb6daa85baf9700f12dff3af564dc14a (patch) | |
| tree | 8824d4dac6576324e9922d0acc72a42f39325af5 | |
| parent | 74617fb6b825ea370ae72565f7543306bc08ef6e (diff) | |
| download | lwn-88660351cb6daa85baf9700f12dff3af564dc14a.tar.gz lwn-88660351cb6daa85baf9700f12dff3af564dc14a.zip | |
[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 <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mach-pxa/poodle.c | 22 | ||||
| -rw-r--r-- | include/asm-arm/arch-pxa/poodle.h | 2 |
2 files changed, 20 insertions, 4 deletions
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index 1d516d317e89..234877a09dfb 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/fb.h> #include <linux/pm.h> +#include <linux/delay.h> #include <asm/hardware.h> #include <asm/mach-types.h> @@ -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, }; diff --git a/include/asm-arm/arch-pxa/poodle.h b/include/asm-arm/arch-pxa/poodle.h index 6b5ac5144e70..6079e0aa1ab9 100644 --- a/include/asm-arm/arch-pxa/poodle.h +++ b/include/asm-arm/arch-pxa/poodle.h @@ -31,6 +31,7 @@ #define POODLE_GPIO_CF_CD (14) #define POODLE_GPIO_CF_STSCHG (14) #define POODLE_GPIO_SD_PWR (33) +#define POODLE_GPIO_SD_PWR1 (3) #define POODLE_GPIO_nSD_CLK (6) #define POODLE_GPIO_nSD_WP (7) #define POODLE_GPIO_nSD_INT (8) @@ -42,6 +43,7 @@ #define POODLE_GPIO_BYPASS_ON (36) #define POODLE_GPIO_CHRG_ON (38) #define POODLE_GPIO_CHRG_FULL (16) +#define POODLE_GPIO_DISCHARGE_ON (42) /* Enable battery discharge */ /* PXA GPIOs */ #define POODLE_IRQ_GPIO_ON_KEY IRQ_GPIO(0) |