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authorVladimir Zapolskiy <vzapolskiy@gmail.com>2010-01-26 14:00:40 +0300
committerSascha Hauer <s.hauer@pengutronix.de>2010-01-26 18:56:54 +0100
commit70c91a384918736afee13104eea059cc7c8728a1 (patch)
treefe063b2f3693713e954bb401f0de4731b2bec1f9
parent4e41db871e0ea46b08eb3cdf887153c853e3ee3d (diff)
ARM: IMX31: configure pins iomux for SDHC setup on litekit board.
This patch adds SDHC support, and corrects current pins setup. Added irq handling on card removal. Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com> Cc: Daniel Mack <daniel@caiaq.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--arch/arm/mach-mx3/mx31lite-db.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/arch/arm/mach-mx3/mx31lite-db.c b/arch/arm/mach-mx3/mx31lite-db.c
index 694611d6b05..ccd874225c3 100644
--- a/arch/arm/mach-mx3/mx31lite-db.c
+++ b/arch/arm/mach-mx3/mx31lite-db.c
@@ -67,6 +67,13 @@ static unsigned int litekit_db_board_pins[] __initdata = {
MX31_PIN_CSPI1_SS0__SS0,
MX31_PIN_CSPI1_SS1__SS1,
MX31_PIN_CSPI1_SS2__SS2,
+ /* SDHC1 */
+ MX31_PIN_SD1_DATA0__SD1_DATA0,
+ MX31_PIN_SD1_DATA1__SD1_DATA1,
+ MX31_PIN_SD1_DATA2__SD1_DATA2,
+ MX31_PIN_SD1_DATA3__SD1_DATA3,
+ MX31_PIN_SD1_CLK__SD1_CLK,
+ MX31_PIN_SD1_CMD__SD1_CMD,
};
/* UART */
@@ -79,11 +86,11 @@ static struct imxuart_platform_data uart_pdata __initdata = {
static int gpio_det, gpio_wp;
#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
- PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
+ PAD_CTL_ODE_CMOS)
static int mxc_mmc1_get_ro(struct device *dev)
{
- return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
+ return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_GPIO1_6));
}
static int mxc_mmc1_init(struct device *dev,
@@ -94,12 +101,17 @@ static int mxc_mmc1_init(struct device *dev,
gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);
gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);
- mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
- mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
- mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
- mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA0,
+ MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA1,
+ MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA2,
+ MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+ mxc_iomux_set_pad(MX31_PIN_SD1_DATA3,
+ MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
+ mxc_iomux_set_pad(MX31_PIN_SD1_CMD,
+ MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
- mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);
ret = gpio_request(gpio_det, "MMC detect");
if (ret)
@@ -113,7 +125,7 @@ static int mxc_mmc1_init(struct device *dev,
gpio_direction_input(gpio_wp);
ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), detect_irq,
- IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC detect", data);
if (ret)
goto exit_free_wp;
@@ -133,7 +145,7 @@ static void mxc_mmc1_exit(struct device *dev, void *data)
{
gpio_free(gpio_det);
gpio_free(gpio_wp);
- free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data);
+ free_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), data);
}
static struct imxmmc_platform_data mmc_pdata = {