From 2ab34f1dabe572d8c55663086d9572cb5bfd6f83 Mon Sep 17 00:00:00 2001 From: Ryan QIAN Date: Mon, 28 May 2012 15:00:46 +0800 Subject: [PATCH] ENGR00210677: [MX60_ARM2]SDIO-WIFI: can not work. enhance drive strength of sd pad ctrl to 40ohm otherwise it will report error while trying to communicate with atheros wifi. error message looks like: - "mmc2: error -84 whilst initialising SDIO card" Signed-off-by: Ryan QIAN --- arch/arm/plat-mxc/include/mach/iomux-mx6sl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx6sl.h b/arch/arm/plat-mxc/include/mach/iomux-mx6sl.h index 529ee99c2fa1..5ce23184a540 100755 --- a/arch/arm/plat-mxc/include/mach/iomux-mx6sl.h +++ b/arch/arm/plat-mxc/include/mach/iomux-mx6sl.h @@ -37,7 +37,7 @@ #define MX6SL_USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ - PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) + PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) #define MX6SL_USDHC_PAD_CTRL_100MHZ (PAD_CTL_PKE | PAD_CTL_PUE | \ PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_MED | \ -- 2.39.5