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| author | Vladimir Zapolskiy <vzapolskiy@gmail.com> | 2010-01-26 14:00:40 +0300 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-01-26 18:56:54 +0100 |
| commit | 70c91a384918736afee13104eea059cc7c8728a1 (patch) | |
| tree | fe063b2f3693713e954bb401f0de4731b2bec1f9 /arch/arm/mach-mx3 | |
| parent | 4e41db871e0ea46b08eb3cdf887153c853e3ee3d (diff) | |
| download | lwn-70c91a384918736afee13104eea059cc7c8728a1.tar.gz lwn-70c91a384918736afee13104eea059cc7c8728a1.zip | |
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>
Diffstat (limited to 'arch/arm/mach-mx3')
| -rw-r--r-- | arch/arm/mach-mx3/mx31lite-db.c | 30 |
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 694611d6b057..ccd874225c3b 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 = { |