[U-Boot] [PATCH 07/16] cgtqmx6eval: Add ESDHC3 support

[Otavio Salvador]

cgtqmx6eval has an eMMC connected to ESDHC3.

Add support for it.

Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---

 board/congatec/cgtqmx6eval/cgtqmx6eval.c | 24 ++++++++++++++++++++++--
 include/configs/cgtqmx6eval.h            |  1 +
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
index 3b1f16c..bb8d07f 100644
--- a/board/congatec/cgtqmx6eval/cgtqmx6eval.c
+++ b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
@@ -49,6 +49,20 @@ static iomux_v3_cfg_t const usdhc2_pads[] = {
 	MX6_PAD_GPIO_4__GPIO1_IO04      | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 };
 
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+	MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD3_RST__SD3_RESET | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
 static iomux_v3_cfg_t const usdhc4_pads[] = {
 	MX6_PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 	MX6_PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
@@ -71,6 +85,7 @@ static void setup_iomux_uart(void)
 #ifdef CONFIG_FSL_ESDHC
 static struct fsl_esdhc_cfg usdhc_cfg[] = {
 	{USDHC2_BASE_ADDR},
+	{USDHC3_BASE_ADDR},
 	{USDHC4_BASE_ADDR},
 };
 
@@ -84,6 +99,9 @@ int board_mmc_getcd(struct mmc *mmc)
 		gpio_direction_input(IMX_GPIO_NR(1, 4));
 		ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
 		break;
+	case USDHC3_BASE_ADDR:
+		ret = 1;	/* eMMC is always present */
+		break;
 	case USDHC4_BASE_ADDR:
 		gpio_direction_input(IMX_GPIO_NR(2, 6));
 		ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
@@ -101,12 +119,14 @@ int board_mmc_init(bd_t *bis)
 	int i;
 
 	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
-	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+	usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 
 	imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+	imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 	imx_iomux_v3_setup_multiple_pads(usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 		status = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
 		if (status)
 			return status;
diff --git a/include/configs/cgtqmx6eval.h b/include/configs/cgtqmx6eval.h
index 9d9e388..63264d9 100644
--- a/include/configs/cgtqmx6eval.h
+++ b/include/configs/cgtqmx6eval.h
@@ -27,6 +27,7 @@
 #define CONFIG_MXC_UART_BASE	       UART2_BASE
 
 /* MMC Configs */
+#define CONFIG_SYS_FSL_USDHC_NUM	3
 #define CONFIG_SYS_FSL_ESDHC_ADDR      0
 
 /* Miscellaneous commands */
-- 
2.4.5