colibri_imx7_emmc: add Colibri iMX7 Dual 1GB (eMMC) support

This adds support for Colibri iMX7 Dual 1GB modules which come
with on-board eMMC storage (whereas the other Colibri iMX7
modules use raw NAND). A subselection (variant) for the
Colibri iMX7 target is used to maximize sharing.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

1 files changed, 41 insertions, 3 deletions

diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c
index 2536bfd274..a8d8dbd2ba 100644
--- a/board/toradex/colibri_imx7/colibri_imx7.c
+++ b/board/toradex/colibri_imx7/colibri_imx7.c
@@ -81,7 +81,7 @@ static iomux_v3_cfg_t const usb_cdet_pads[] = {
 	MX7D_PAD_ENET1_CRS__GPIO7_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
-#ifdef CONFIG_NAND_MXS
+#if defined(CONFIG_NAND_MXS) && defined(CONFIG_TARGET_COLIBRI_IMX7_NAND)
 static iomux_v3_cfg_t const gpmi_pads[] = {
 	MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
 	MX7D_PAD_SD3_DATA1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL),
@@ -109,6 +109,24 @@ static void setup_gpmi_nand(void)
 }
 #endif
 
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_EMMC
+static iomux_v3_cfg_t const usdhc3_emmc_pads[] = {
+	MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX7D_PAD_SD3_STROBE__SD3_STROBE	 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+
+	MX7D_PAD_SD3_RESET_B__GPIO6_IO11 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+#endif
+
 #ifdef CONFIG_VIDEO_MXS
 static iomux_v3_cfg_t const lcd_pads[] = {
 	MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
@@ -198,6 +216,9 @@ static void setup_iomux_uart(void)
 #define USDHC1_CD_GPIO	IMX_GPIO_NR(1, 0)
 
 static struct fsl_esdhc_cfg usdhc_cfg[] = {
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_EMMC
+	{USDHC3_BASE_ADDR},
+#endif
 	{USDHC1_BASE_ADDR, 0, 4},
 };
 
@@ -210,6 +231,11 @@ int board_mmc_getcd(struct mmc *mmc)
 	case USDHC1_BASE_ADDR:
 		ret = !gpio_get_value(USDHC1_CD_GPIO);
 		break;
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_EMMC
+	case USDHC3_BASE_ADDR:
+		ret = 1;
+		break;
+#endif
 	}
 
 	return ret;
@@ -218,7 +244,7 @@ int board_mmc_getcd(struct mmc *mmc)
 int board_mmc_init(bd_t *bis)
 {
 	int i, ret;
-	/* USDHC1 is mmc0 */
+	/* USDHC1 is mmc0, USDHC3 is mmc1 */
 	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 		switch (i) {
 		case 0:
@@ -228,6 +254,13 @@ int board_mmc_init(bd_t *bis)
 			gpio_direction_input(USDHC1_CD_GPIO);
 			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 			break;
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_EMMC
+		case 1:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc3_emmc_pads, ARRAY_SIZE(usdhc3_emmc_pads));
+			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+			break;
+#endif
 		default:
 			printf("Warning: you configured more USDHC controllers"
 				"(%d) than supported by the board\n", i + 1);
@@ -305,7 +338,7 @@ int board_init(void)
 	setup_fec();
 #endif
 
-#ifdef CONFIG_NAND_MXS
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_NAND
 	setup_gpmi_nand();
 #endif
 
@@ -324,7 +357,12 @@ int board_init(void)
 #ifdef CONFIG_CMD_BMODE
 static const struct boot_mode board_boot_modes[] = {
 	/* 4 bit bus width */
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_NAND
 	{"nand", MAKE_CFGVAL(0x40, 0x34, 0x00, 0x00)},
+#endif
+#ifdef CONFIG_TARGET_COLIBRI_IMX7_EMMC
+	{"mmc", MAKE_CFGVAL(0x20, 0xe0, 0x00, 0x00)},
+#endif
 	{"sd1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
 	{NULL, 0},
 };