[PATCH v2] Fix MMC access on Sabrelite

[Martyn Welch]

It appears that MMC access on the Sabrelite has been broken since
cdcaee9518:

Loading Environment from MMC... Card did not respond to voltage select!
*** Warning - No block device, using default environment

Remove the board_mmc_init() and related entries now that we should be
using DM_MMC, add PINCTRL so that things work as expected.

Signed-off-by: Martyn Welch <martyn.welch at collabora.com>
---

Changes in v2:
- Removed now redundant mmc header.

 board/boundary/nitrogen6x/nitrogen6x.c | 72 --------------------------
 configs/mx6qsabrelite_defconfig        |  3 ++
 2 files changed, 3 insertions(+), 72 deletions(-)

diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index d49725daa8..b3b121bad8 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -25,7 +25,6 @@
 #include <asm/mach-imx/spi.h>
 #include <asm/mach-imx/boot_mode.h>
 #include <asm/mach-imx/video.h>
-#include <mmc.h>
 #include <fsl_esdhc_imx.h>
 #include <micrel.h>
 #include <miiphy.h>
@@ -161,26 +160,6 @@ static iomux_v3_cfg_t const usdhc2_pads[] = {
 	IOMUX_PAD_CTRL(SD2_DAT3__SD2_DATA3, USDHC_PAD_CTRL),
 };
 
-static iomux_v3_cfg_t const usdhc3_pads[] = {
-	IOMUX_PAD_CTRL(SD3_CLK__SD3_CLK, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD3_CMD__SD3_CMD, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD3_DAT5__GPIO7_IO00, NO_PAD_CTRL), /* CD */
-};
-
-static iomux_v3_cfg_t const usdhc4_pads[] = {
-	IOMUX_PAD_CTRL(SD4_CLK__SD4_CLK, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD4_CMD__SD4_CMD, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD4_DAT0__SD4_DATA0, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD4_DAT1__SD4_DATA1, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD4_DAT2__SD4_DATA2, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(SD4_DAT3__SD4_DATA3, USDHC_PAD_CTRL),
-	IOMUX_PAD_CTRL(NANDF_D6__GPIO2_IO06, NO_PAD_CTRL), /* CD */
-};
-
 static iomux_v3_cfg_t const enet_pads1[] = {
 	IOMUX_PAD_CTRL(ENET_MDIO__ENET_MDIO, ENET_PAD_CTRL),
 	IOMUX_PAD_CTRL(ENET_MDC__ENET_MDC, ENET_PAD_CTRL),
@@ -305,57 +284,6 @@ int board_ehci_power(int port, int on)
 
 #endif
 
-#ifdef CONFIG_FSL_ESDHC_IMX
-static struct fsl_esdhc_cfg usdhc_cfg[2] = {
-	{USDHC3_BASE_ADDR},
-	{USDHC4_BASE_ADDR},
-};
-
-int board_mmc_getcd(struct mmc *mmc)
-{
-	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
-	int gp_cd = (cfg->esdhc_base == USDHC3_BASE_ADDR) ? IMX_GPIO_NR(7, 0) :
-			IMX_GPIO_NR(2, 6);
-
-	gpio_direction_input(gp_cd);
-	return !gpio_get_value(gp_cd);
-}
-
-int board_mmc_init(bd_t *bis)
-{
-	int ret;
-	u32 index = 0;
-
-	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
-	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
-
-	usdhc_cfg[0].max_bus_width = 4;
-	usdhc_cfg[1].max_bus_width = 4;
-
-	for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
-		switch (index) {
-		case 0:
-			SETUP_IOMUX_PADS(usdhc3_pads);
-			break;
-		case 1:
-		       SETUP_IOMUX_PADS(usdhc4_pads);
-		       break;
-		default:
-		       printf("Warning: you configured more USDHC controllers"
-			       "(%d) then supported by the board (%d)\n",
-			       index + 1, CONFIG_SYS_FSL_USDHC_NUM);
-		       return -EINVAL;
-		}
-
-		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-#endif
-
 #ifdef CONFIG_MXC_SPI
 int board_spi_cs_gpio(unsigned bus, unsigned cs)
 {
diff --git a/configs/mx6qsabrelite_defconfig b/configs/mx6qsabrelite_defconfig
index ea338c1b53..39b0ef7a42 100644
--- a/configs/mx6qsabrelite_defconfig
+++ b/configs/mx6qsabrelite_defconfig
@@ -28,6 +28,7 @@ CONFIG_CMD_GPT=y
 # CONFIG_RANDOM_UUID is not set
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+# CONFIG_CMD_PINMUX is not set
 CONFIG_CMD_SATA=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
@@ -55,6 +56,8 @@ CONFIG_PHYLIB=y
 CONFIG_PHY_MICREL=y
 CONFIG_PHY_MICREL_KSZ90X1=y
 CONFIG_MII=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX6=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_MXC_SPI=y
-- 
2.26.2