aspeed: Support for ast2500 Eval Board

ast2500 Eval Board device tree and board specific configuration.
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/Makefile

@@ -334,6 +334,8 @@ dtb-$(CONFIG_ARCH_BCM283X) += \
 	bcm2836-rpi-2-b.dtb \
 	bcm2837-rpi-3-b.dtb
 
+dtb-$(CONFIG_ARCH_ASPEED) += ast2500-evb.dtb
+
 targets += $(dtb-y)
 
 # Add any required device tree compiler flags here

arch/arm/dts/ast2500-evb.dts

+/dts-v1/;
+
+#include "ast2500-u-boot.dtsi"
+
+/ {
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+	};
+};
+
+&uart5 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&sdrammc {
+	clock-frequency = <400000000>;
+};

arch/arm/mach-aspeed/ast2500/Kconfig

@@ -11,4 +11,6 @@ config TARGET_EVB_AST2500
 	  4 Serial ports, 4 USB ports, VGA port, PCIe, SD card slot,
 	  20 pin JTAG, pinouts for 14 I2Cs, 3 SPIs and eSPI, 8 PWMs.
 
+source "board/aspeed/evb_ast2500/Kconfig"
+
 endif

board/aspeed/evb_ast2500/Kconfig

+if TARGET_EVB_AST2500
+
+config SYS_BOARD
+	default "evb_ast2500"
+
+config SYS_VENDOR
+	default "aspeed"
+
+config SYS_CONFIG_NAME
+	default "evb_ast2500"
+
+endif

board/aspeed/evb_ast2500/Makefile

+obj-y += evb_ast2500.o

board/aspeed/evb_ast2500/evb_ast2500.c

+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>

configs/evb-ast2500_defconfig

+CONFIG_ARM=y
+CONFIG_ARCH_ASPEED=y
+CONFIG_ASPEED_AST2500=y
+CONFIG_TARGET_EVB_AST2500=y
+CONFIG_DEFAULT_DEVICE_TREE="ast2500-evb"
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_DISPLAY_CPUINFO=n
+CONFIG_SYS_NS16550=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYSRESET=y
+CONFIG_CLK=y
+CONFIG_TIMER=y
+CONFIG_RAM=y
+CONFIG_REGMAP=y
+CONFIG_PRE_CONSOLE_BUFFER=y
+CONFIG_PRE_CON_BUF_ADDR=0x1e720000
+CONFIG_PRE_CON_BUF_SZ=4096
+CONFIG_SYS_NO_FLASH=y
+CONFIG_CMD_IMLS=n

include/configs/evb_ast2500.h

+/*
+ * Copyright (C) 2012-2020  ASPEED Technology Inc.
+ * Ryan Chen <ryan_chen@aspeedtech.com>
+ *
+ * Copyright 2016 Google Inc
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <configs/aspeed-common.h>
+
+#define CONFIG_SYS_MEMTEST_START	(CONFIG_SYS_SDRAM_BASE + 0x300000)
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + 0x5000000)
+
+#define CONFIG_SYS_UBOOT_BASE		CONFIG_SYS_TEXT_BASE
+
+/* Memory Info */
+#define CONFIG_SYS_LOAD_ADDR		0x83000000
+
+#define CONFIG_ENV_IS_NOWHERE
+
+#define CONFIG_ENV_SIZE			0x20000
+
+#endif	/* __CONFIG_H */