sunxi: Add A20-SOM204-EVB-eMMC board

A20-SOM204 board has option with onboard 16GB eMMC. The chip is wired
to MMC2 slot.

This patch adds defconfig and dts files for this board. The dts is same
with mainline kernel.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>

arch/arm/dts/Makefile

@@ -305,6 +305,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \
 	sun7i-a20-mk808c.dtb \
 	sun7i-a20-olimex-som-evb.dtb \
 	sun7i-a20-olimex-som204-evb.dtb \
+	sun7i-a20-olimex-som204-evb-emmc.dtb \
 	sun7i-a20-olinuxino-lime.dtb \
 	sun7i-a20-olinuxino-lime2.dtb \
 	sun7i-a20-olinuxino-lime2-emmc.dtb \

arch/arm/dts/sun7i-a20-olimex-som204-evb-emmc.dts

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree Source for A20-SOM204-EVB-eMMC Board
+ *
+ * Copyright (C) 2018 Olimex Ltd.
+ *   Author: Stefan Mavrodiev <stefan@olimex.com>
+ */
+
+/dts-v1/;
+#include "sun7i-a20-olimex-som204-evb.dts"
+
+/ {
+	model = "Olimex A20-SOM204-EVB-eMMC";
+	compatible = "olimex,a20-olimex-som204-evb-emmc", "allwinner,sun7i-a20";
+
+	mmc2_pwrseq: mmc2_pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&pio 2 16 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins_a>;
+	vmmc-supply = <&reg_vcc3v3>;
+	mmc-pwrseq = <&mmc2_pwrseq>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	emmc: emmc@0 {
+		reg = <0>;
+		compatible = "mmc-card";
+		broken-hpi;
+	};
+};

board/sunxi/MAINTAINERS

@@ -315,6 +315,7 @@ OLIMEX A20-SOM204 BOARD
 M:	Stefan Mavrodiev <stefan@olimex.com>
 S:	Maintained
 F:	configs/A20-Olimex-SOM204-EVB_defconfig
+F:	configs/A20-Olimex-SOM204-EVB-eMMC_defconfig
 
 ORANGEPI WIN/WIN PLUS BOARD
 M:	Jagan Teki <jagan@amarulasolutions.com>

configs/A20-Olimex-SOM204-EVB-eMMC_defconfig

@@ -0,0 +1,34 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_MACH_SUN7I=y
+CONFIG_DRAM_CLK=384
+CONFIG_MMC0_CD_PIN="PH1"
+CONFIG_MMC_SUNXI_SLOT_EXTRA=2
+CONFIG_USB0_VBUS_PIN="PC17"
+CONFIG_USB0_VBUS_DET="PH5"
+CONFIG_I2C1_ENABLE=y
+CONFIG_SATAPWR="PC3"
+CONFIG_GMAC_TX_DELAY=4
+CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-olimex-som204-evb-emmc"
+CONFIG_AHCI=y
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL=y
+CONFIG_SPL_I2C_SUPPORT=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_ISO_PARTITION is not set
+# CONFIG_SPL_PARTITION_UUIDS is not set
+CONFIG_SCSI_AHCI=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_PHY_ADDR=3
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
+CONFIG_RGMII=y
+CONFIG_SUN7I_GMAC=y
+CONFIG_AXP_ALDO3_VOLT=2800
+CONFIG_AXP_ALDO4_VOLT=2800
+CONFIG_SCSI=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_MUSB_GADGET=y
+CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE=y