colibri-imx6ull: migrate mmc to using driver model

Migrate MMC to using driver model.
Migrate USDHC to using pinctrl.
While at it also add GPIO1_IO03__OSC32K_32K_OUT pin muxing.
While at it also update copyright period.
Signed-off-by: NMarcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: NIgor Opaniuk <igor.opaniuk@toradex.com>

arch/arm/dts/imx6ull-colibri.dts

 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
- * Copyright 2018 Toradex AG
+ * Copyright 2018-2019 Toradex AG
  */
 
 /dts-v1/;
@@ -11,6 +11,10 @@
 	model = "Toradex Colibri iMX6ULL";
 	compatible = "toradex,imx6ull-colibri", "fsl,imx6ull";
 
+	aliases {
+		mmc0 = &usdhc1;
+	};
+
 	chosen {
 		stdout-path = &uart1;
 	};
@@ -190,10 +194,18 @@
 	dr_mode = "host";
 };
 
+/* Colibri MMC */
 &usdhc1 {
 	assigned-clocks = <&clks IMX6UL_CLK_USDHC1_SEL>, <&clks IMX6UL_CLK_USDHC1>;
 	assigned-clock-parents = <&clks IMX6UL_CLK_PLL2_PFD2>;
 	assigned-clock-rates = <0>, <198000000>;
+	cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>; /* MMC_CD */
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_snvs_usdhc1_cd>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	vmmc-supply = <&reg_sd1_vmmc>;
+	status = "okay";
 };
 
 &iomuxc {
@@ -547,4 +559,3 @@
 		>;
 	};
 };
-

board/toradex/colibri-imx6ull/colibri-imx6ull.c

@@ -18,11 +18,9 @@
 #include <dm.h>
 #include <dm/platform_data/serial_mxc.h>
 #include <fdt_support.h>
-#include <fsl_esdhc.h>
 #include <imx_thermal.h>
 #include <jffs2/load_kernel.h>
 #include <linux/sizes.h>
-#include <mmc.h>
 #include <miiphy.h>
 #include <mtd_node.h>
 #include <netdev.h>
@@ -34,10 +32,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
-	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm |			\
-	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
-
 #define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
 		PAD_CTL_DSE_48ohm)
 
@@ -56,19 +50,6 @@ int dram_init(void)
 	return 0;
 }
 
-#ifdef CONFIG_FSL_ESDHC
-static iomux_v3_cfg_t const usdhc1_pads[] = {
-	MX6_PAD_SD1_CLK__USDHC1_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_CMD__USDHC1_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DATA0__USDHC1_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DATA1__USDHC1_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DATA2__USDHC1_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD1_DATA3__USDHC1_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-
-	MX6_PAD_SNVS_TAMPER0__GPIO5_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-#endif
-
 static iomux_v3_cfg_t const usb_cdet_pads[] = {
 	MX6_PAD_SNVS_TAMPER2__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
@@ -135,57 +116,6 @@ static int setup_lcd(void)
 }
 #endif
 
-#ifdef CONFIG_FSL_ESDHC
-
-#define USDHC1_CD_GPIO	IMX_GPIO_NR(5, 0)
-
-static struct fsl_esdhc_cfg usdhc_cfg[] = {
-	{USDHC1_BASE_ADDR, 0, 4},
-};
-
-int board_mmc_getcd(struct mmc *mmc)
-{
-	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
-	int ret = 0;
-
-	switch (cfg->esdhc_base) {
-	case USDHC1_BASE_ADDR:
-		ret = !gpio_get_value(USDHC1_CD_GPIO);
-		break;
-	}
-
-	return ret;
-}
-
-int board_mmc_init(bd_t *bis)
-{
-	int i, ret;
-
-	/* USDHC1 is mmc0 */
-	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
-		switch (i) {
-		case 0:
-			imx_iomux_v3_setup_multiple_pads(usdhc1_pads,
-							 ARRAY_SIZE(usdhc1_pads));
-			gpio_request(USDHC1_CD_GPIO, "usdhc1_cd");
-			gpio_direction_input(USDHC1_CD_GPIO);
-			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
-			break;
-		default:
-			printf("Warning: you configured more USDHC controllers"
-				"(%d) than supported by the board\n", i + 1);
-			return -EINVAL;
-		}
-
-		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-#endif
-
 #ifdef CONFIG_FEC_MXC
 static int setup_fec(void)
 {

configs/colibri-imx6ull_defconfig

@@ -50,6 +50,7 @@ CONFIG_DFU_NAND=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_MXC=y
+CONFIG_DM_MMC=y
 CONFIG_FSL_ESDHC=y
 CONFIG_MTD=y
 CONFIG_NAND=y

include/configs/colibri-imx6ull.h

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * Copyright 2018 Toradex AG
+ * Copyright 2018-2019 Toradex AG
  *
  * Configuration settings for the Colibri iMX6ULL module.
  *
@@ -30,7 +30,7 @@
 /* ENET1 */
 #define IMX_FEC_BASE			ENET2_BASE_ADDR
 
-/* MMC Config*/
+/* MMC Config */
 #define CONFIG_SYS_FSL_ESDHC_ADDR	0
 #define CONFIG_SYS_FSL_USDHC_NUM	1
 
@@ -182,4 +182,4 @@
 #define CONFIG_VIDEO_BMP_LOGO
 #endif
 
-#endif
+#endif /* __COLIBRI_IMX6ULL_CONFIG_H */