xilinx: zynqmp: Add new target with only emmc enabled

This patch adds new target which is called as mini configuration
with only emmc functionality and other required basic features enabled.
This will be used to run in system with small footprint and needs
emmc support.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/dts/Makefile

@@ -147,6 +147,7 @@ dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-zybo.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP) += \
 	zynqmp-ep108.dtb			\
+	zynqmp-mini-emmc.dtb			\
 	zynqmp-mini-nand.dtb			\
 	zynqmp-zcu102-revA.dtb			\
 	zynqmp-zcu102-revB.dtb			\

arch/arm/dts/zynqmp-mini-emmc.dts

@@ -0,0 +1,76 @@
+/*
+ * dts file for Xilinx ZynqMP Mini Configuration
+ *
+ * (C) Copyright 2018, Xilinx, Inc.
+ *
+ * Siva Durga Prasad <siva.durga.paladugu@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+
+/ {
+	model = "ZynqMP MINI EMMC";
+	compatible = "xlnx,zynqmp";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	aliases {
+		serial0 = &dcc;
+		mmc0 = &sdhci0;
+		mmc1 = &sdhci1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x20000000>;
+	};
+
+	dcc: dcc {
+		compatible = "arm,dcc";
+		status = "disabled";
+		u-boot,dm-pre-reloc;
+	};
+
+	amba: amba {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		sdhci0: sdhci@ff160000 {
+			u-boot,dm-pre-reloc;
+			compatible = "xlnx,zynqmp-8.9a", "arasan,sdhci-8.9a";
+			status = "disabled";
+			reg = <0x0 0xff160000 0x0 0x1000>;
+			clock-names = "clk_xin", "clk_ahb";
+			xlnx,device_id = <0>;
+		};
+
+		sdhci1: sdhci@ff170000 {
+			u-boot,dm-pre-reloc;
+			compatible = "xlnx,zynqmp-8.9a", "arasan,sdhci-8.9a";
+			status = "disabled";
+			reg = <0x0 0xff170000 0x0 0x1000>;
+			clock-names = "clk_xin", "clk_ahb";
+			xlnx,device_id = <1>;
+		};
+	};
+};
+
+&dcc {
+	status = "okay";
+};
+
+&sdhci0 {
+	status = "okay";
+};
+
+&sdhci1 {
+	status = "okay";
+};

configs/xilinx_zynqmp_mini_emmc_defconfig

@@ -0,0 +1,44 @@
+CONFIG_ARM=y
+CONFIG_SYS_CONFIG_NAME="xilinx_zynqmp_mini_emmc"
+CONFIG_ARCH_ZYNQMP=y
+CONFIG_SYS_TEXT_BASE=0x10000
+CONFIG_DEFAULT_DEVICE_TREE="zynqmp-mini-emmc"
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=-1
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_SYS_PROMPT="ZynqMP> "
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTM is not set
+# CONFIG_CMD_BOOTI is not set
+# CONFIG_CMD_GO is not set
+# CONFIG_CMD_RUN is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_SAVEENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_DM is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+# CONFIG_CMD_ECHO is not set
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SOURCE is not set
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_NET is not set
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_EMBED=y
+# CONFIG_DM_WARN is not set
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_DM_MMC=y
+CONFIG_MMC_SDHCI=y
+# CONFIG_EFI_LOADER is not set

include/configs/xilinx_zynqmp_mini_emmc.h

@@ -0,0 +1,23 @@
+/*
+ * Configuration for Xilinx ZynqMP eMMC Flash utility
+ *
+ * (C) Copyright 2018 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ * Siva Durga Prasad Paladugu <sivadur@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_ZYNQMP_MINI_EMMC_H
+#define __CONFIG_ZYNQMP_MINI_EMMC_H
+
+#include <configs/xilinx_zynqmp_mini.h>
+
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_NR_DRAM_BANKS	1
+#define CONFIG_ENV_SIZE		0x10000
+#define CONFIG_SYS_INIT_SP_ADDR	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_MALLOC_LEN	0x800000
+#define CONFIG_SYS_LONGHELP
+
+#endif /* __CONFIG_ZYNQMP_MINI_EMMC_H */