mx28evk: Add initial support for MX28EVK board

Add initial support for Freescale MX28EVK board.

Tested boot via SD card and by loading a kernel via TFTP through
the FEC interface.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Stefano Babic <sbabic@denx.de>

1 files changed, 176 insertions, 0 deletions

diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
new file mode 100644
index 0000000000..bea46e7267
--- /dev/null
+++ b/include/configs/mx28evk.h
@@ -0,0 +1,176 @@
+/*
+ * (C) Copyright 2011 Freescale Semiconductor, Inc.
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * Based on m28evk.h:
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ */
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/arch/regs-base.h>
+
+/*
+ * SoC configurations
+ */
+#define CONFIG_MX28				/* i.MX28 SoC */
+#define CONFIG_MXS_GPIO			/* GPIO control */
+#define CONFIG_SYS_HZ		1000		/* Ticks per second */
+
+#define CONFIG_MACH_TYPE	MACH_TYPE_MX28EVK
+
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_ARCH_MISC_INIT
+
+/*
+ * SPL
+ */
+#define CONFIG_SPL
+#define CONFIG_SPL_NO_CPU_SUPPORT_CODE
+#define CONFIG_SPL_START_S_PATH	"arch/arm/cpu/arm926ejs/mx28"
+#define CONFIG_SPL_LDSCRIPT	"arch/arm/cpu/arm926ejs/mx28/u-boot-spl.lds"
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+
+/*
+ * U-Boot Commands
+ */
+#include <config_cmd_default.h>
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DOS_PARTITION
+#define CONFIG_CMD_FAT
+
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_GPIO
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_PING
+
+/*
+ * Memory configurations
+ */
+#define CONFIG_NR_DRAM_BANKS		1		/* 1 bank of DRAM */
+#define PHYS_SDRAM_1			0x40000000	/* Base address */
+#define PHYS_SDRAM_1_SIZE		0x40000000	/* Max 1 GB RAM */
+#define CONFIG_STACKSIZE		(128 * 1024)	/* 128 KB stack */
+#define CONFIG_SYS_MALLOC_LEN		0x00400000	/* 4 MB for malloc */
+#define CONFIG_SYS_MEMTEST_START	0x40000000	/* Memtest start adr */
+#define CONFIG_SYS_MEMTEST_END		0x40400000	/* 4 MB RAM test */
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+/* Point initial SP in SRAM so SPL can use it too. */
+
+#define CONFIG_SYS_INIT_RAM_ADDR	0x00002000
+#define CONFIG_SYS_INIT_RAM_SIZE	(128 * 1024)
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/*
+ * We need to sacrifice first 4 bytes of RAM here to avoid triggering some
+ * strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot
+ * binary. In case there was more of this mess, 0x100 bytes are skipped.
+ */
+#define CONFIG_SYS_TEXT_BASE	0x40000100
+
+#define CONFIG_ENV_OVERWRITE
+/*
+ * U-Boot general configurations
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT	"MX28EVK U-Boot > "
+#define CONFIG_SYS_CBSIZE	1024		/* Console I/O buffer size */
+#define CONFIG_SYS_PBSIZE	\
+	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+						/* Print buffer size */
+#define CONFIG_SYS_MAXARGS	32		/* Max number of command args */
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
+						/* Boot argument buffer size */
+#define CONFIG_VERSION_VARIABLE	/* U-BOOT version */
+#define CONFIG_AUTO_COMPLETE		/* Command auto complete */
+#define CONFIG_CMDLINE_EDITING		/* Command history etc */
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+
+/*
+ * Serial Driver
+ */
+#define CONFIG_PL011_SERIAL
+#define CONFIG_PL011_CLOCK		24000000
+#define CONFIG_PL01x_PORTS		{ (void *)MXS_UARTDBG_BASE }
+#define CONFIG_CONS_INDEX		0
+#define CONFIG_BAUDRATE			115200	/* Default baud rate */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * MMC Driver
+ */
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_ENV_OFFSET	(256 * 1024)
+#define CONFIG_ENV_SIZE	(16 * 1024)
+#define CONFIG_SYS_MMC_ENV_DEV 0
+#define CONFIG_CMD_SAVEENV
+#ifdef	CONFIG_CMD_MMC
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MXS_MMC
+#endif
+
+/*
+ * Ethernet on SOC (FEC)
+ */
+#ifdef	CONFIG_CMD_NET
+#define CONFIG_NET_MULTI
+#define CONFIG_ETHPRIME	"FEC0"
+#define CONFIG_FEC_MXC
+#define CONFIG_FEC_MXC_MULTI
+#define CONFIG_MII
+#define CONFIG_DISCOVER_PHY
+#define CONFIG_FEC_XCV_TYPE	RMII
+#define CONFIG_MX28_FEC_MAC_IN_OCOTP
+#endif
+
+/*
+ * Boot Linux
+ */
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTFILE	"uImage"
+#define CONFIG_BOOTCOMMAND	"run bootcmd_net"
+#define CONFIG_LOADADDR	0x42000000
+#define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
+
+/*
+ * Extra Environments
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"console_fsl=console=ttyAM0" \
+	"console_mainline=console=ttyAMA0" \
+	"netargs=setenv bootargs console=${console_mainline}" \
+		"root=/dev/nfs " \
+		"ip=dhcp nfsroot=${serverip}:${nfsroot}\0" \
+	"bootcmd_net=echo Booting from net ...; " \
+		"run netargs; " \
+		"dhcp ${uimage}; bootm\0" \
+
+#endif /* __CONFIG_H */