boards: esp32: SDHC support for esp_wrover_kit

Configuration files to enable SDHC in esp_wrover_kit

Signed-off-by: Raffael Rostagno <raffael.rostagno@espressif.com>

boards/espressif/esp_wrover_kit/esp_wrover_kit-pinctrl.dtsi

@@ -64,4 +64,11 @@
 		};
 	};
 
+	sdhc0_default: sdhc0_default {
+		group1 {
+			pinmux = <SDHC0_CD_GPIO21>;
+			bias-pull-up;
+			output-high;
+		};
+	};
 };

boards/espressif/esp_wrover_kit/esp_wrover_kit_procpu.dts

@@ -25,6 +25,7 @@
 		uart-0 = &uart0;
 		i2c-0 = &i2c0;
 		watchdog0 = &wdt0;
+		sdhc0 = &sdhc1;
 	};
 
 	chosen {
@@ -34,6 +35,7 @@
 		zephyr,flash = &flash0;
 		zephyr,code-partition = &slot0_partition;
 		zephyr,display = &ili9341;
+		zephyr,sdhc = &sdhc1;
 	};
 
 	leds {
@@ -187,6 +189,30 @@
 	status = "okay";
 };
 
+&sdhc {
+	sdhc1: sdhc@1 {
+		status = "okay";
+
+		pinctrl-0 = <&sdhc0_default>;
+		pinctrl-names = "default";
+		power-delay-ms = <100>;
+		max-bus-freq = <52000000>;
+		bus-width = <4>;
+
+		clk-pin = <14>;
+		cmd-pin = <15>;
+		d0-pin = <2>;
+		d1-pin = <4>;
+		d2-pin = <12>;
+		d3-pin = <13>;
+
+		mmc {
+			compatible = "zephyr,sdmmc-disk";
+			status = "okay";
+		};
+	};
+};
+
 &flash0 {
 	status = "okay";
 	partitions {

boards/espressif/esp_wrover_kit/esp_wrover_kit_procpu.yaml

@@ -13,6 +13,7 @@ supported:
   - uart
   - nvs
   - pwm
+  - sdhc
   - spi
   - counter
   - entropy

samples/subsys/fs/fs_sample/boards/esp_wrover_kit_procpu.conf

@@ -1,2 +0,0 @@
-CONFIG_SPI=y
-CONFIG_DISK_DRIVER_SDMMC=y

samples/subsys/fs/fs_sample/boards/esp_wrover_kit_procpu.overlay

@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-&pinctrl {
-
-	spim2_default: spim2_default {
-		group1 {
-			pinmux = <SPIM2_MISO_GPIO2>,
-				 <SPIM2_MOSI_GPIO15>,
-				 <SPIM2_SCLK_GPIO14>;
-		};
-	};
-
-};
-
-&spi2 {
-	status = "okay";
-	pinctrl-0 = <&spim2_default>;
-	pinctrl-names = "default";
-	cs-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
-
-	sdhc0: sdhc@0 {
-		compatible = "zephyr,sdhc-spi-slot";
-		reg = <0>;
-		status = "okay";
-		spi-max-frequency = <400000>;
-		mmc {
-                    compatible = "zephyr,sdmmc-disk";
-                    status = "okay";
-                };
-        };
-};