From: Jarkko Nikula Date: Thu, 24 Sep 2009 23:23:17 +0000 (-0700) Subject: omap: Fix MMC gpio_wp for BeagleBoard C2 and above X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=44e74840d668d23b65e22772828e2600641b6ab0;p=linux.git omap: Fix MMC gpio_wp for BeagleBoard C2 and above Earlier BeagleBoards were using pad AH8 muxed to GPIO29 for MMC write-protect. However, this signal has been changed to pad AG9 in board revision C2. Fix this by adding mux configuration for pad AG9, runtime check for board revisions and set the gpio number and pad muxing accordingly. Signed-off-by: Jarkko Nikula Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 500c9956876de..70df6b4dbcd4c 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -139,8 +139,13 @@ static struct gpio_led gpio_leds[]; static int beagle_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { + if (system_rev >= 0x20 && system_rev <= 0x34301000) { + omap_cfg_reg(AG9_34XX_GPIO23); + mmc[0].gpio_wp = 23; + } else { + omap_cfg_reg(AH8_34XX_GPIO29); + } /* gpio + 0 is "mmc0_cd" (input/IRQ) */ - omap_cfg_reg(AH8_34XX_GPIO29); mmc[0].gpio_cd = gpio + 0; twl4030_mmc_init(mmc); diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 339ba80ee683b..b5fac32aae704 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -460,6 +460,8 @@ MUX_CFG_34XX("AF26_34XX_GPIO0", 0x1e0, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT) MUX_CFG_34XX("AF22_34XX_GPIO9", 0xa18, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT) +MUX_CFG_34XX("AG9_34XX_GPIO23", 0x5ee, + OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT) MUX_CFG_34XX("AH8_34XX_GPIO29", 0x5fa, OMAP34XX_MUX_MODE4 | OMAP34XX_PIN_INPUT) MUX_CFG_34XX("U8_34XX_GPIO54_OUT", 0x0b4, diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h index 4bcf8a59d8c0c..0f49d2d563d9c 100644 --- a/arch/arm/plat-omap/include/mach/mux.h +++ b/arch/arm/plat-omap/include/mach/mux.h @@ -840,6 +840,7 @@ enum omap34xx_index { */ AF26_34XX_GPIO0, AF22_34XX_GPIO9, + AG9_34XX_GPIO23, AH8_34XX_GPIO29, U8_34XX_GPIO54_OUT, U8_34XX_GPIO54_DOWN,