boards: sam: sam_v71_xult add hsmci for sdhc

Based on 4.3.6 https://ww1.microchip.com/downloads/en/devicedoc/atmel-42408-samv71-xplained-ultra_user-guide.pdf

Signed-off-by: John Whittington <git@jbrengineering.co.uk>

boards/atmel/sam/sam_v71_xult/sam_v71_xult-common.dtsi

@@ -21,6 +21,7 @@
 		sw0 = &sw0_user_button;
 		sw1 = &sw1_user_button;
 		watchdog0 = &wdt;
+		sdhc0 = &hsmci;
 	};
 
 	chosen {
@@ -341,6 +342,20 @@ zephyr_udc0: &usbhs {
 	status = "okay";
 };
 
+&hsmci {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&hsmci_default>;
+	cd-gpios = <&piod 18 GPIO_ACTIVE_LOW>;
+
+	mmc {
+		compatible = "zephyr,sdmmc-disk";
+		disk-name = "SD";
+		status = "okay";
+	};
+};
+
 ext1_spi: &spi0 {
 };
 

boards/atmel/sam/sam_v71_xult/sam_v71_xult-pinctrl.dtsi

@@ -153,4 +153,15 @@
 				 <PD19B_USART2_CTS>;
 		};
 	};
+
+	hsmci_default: hsmci_default {
+		group1 {
+			pinmux = <PA28C_HSMCI_MCCDA>,
+				 <PA25D_HSMCI_MCCK>,
+				 <PA30C_HSMCI_MCDA0>,
+				 <PA31C_HSMCI_MCDA1>,
+				 <PA26C_HSMCI_MCDA2>,
+				 <PA27C_HSMCI_MCDA3>;
+		};
+	};
 };

boards/atmel/sam/sam_v71_xult/sam_v71_xult_samv71q21.yaml

@@ -22,6 +22,7 @@ supported:
   - pwm
   - netif:eth
   - rtc
+  - sdhc
   - spi
   - usb_device
   - watchdog

boards/atmel/sam/sam_v71_xult/sam_v71_xult_samv71q21b.yaml

@@ -22,6 +22,7 @@ supported:
   - pwm
   - netif:eth
   - rtc
+  - sdhc
   - spi
   - usb_device
   - watchdog