/*
 * Freescale i.MX23 EVK board config
 *
 * Copyright (C) 2013 Otavio Salvador <otavio@ossystems.com.br>
 * on behalf of O.S. Systems Software LTDA.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */
#ifndef __MX23EVK_CONFIG_H__
#define __MX23EVK_CONFIG_H__

/* SoC configurations */
#define CONFIG_MX23				/* i.MX23 SoC */

#include <asm/arch/regs-base.h>

#define CONFIG_MXS_GPIO			/* GPIO control */
#define CONFIG_SYS_HZ		1000		/* Ticks per second */

#define CONFIG_MACH_TYPE	MACH_TYPE_MX23EVK

#define CONFIG_SYS_NO_FLASH
#define CONFIG_BOARD_EARLY_INIT_F
#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/mxs"
#define CONFIG_SPL_LDSCRIPT	"arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds"
#define CONFIG_SPL_LIBCOMMON_SUPPORT
#define CONFIG_SPL_LIBGENERIC_SUPPORT
#define CONFIG_SPL_GPIO_SUPPORT

/* U-Boot Commands */
#include <config_cmd_default.h>
#undef CONFIG_CMD_NET
#undef CONFIG_CMD_NFS

#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DOS_PARTITION

#define CONFIG_CMD_CACHE
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_FAT
#define CONFIG_CMD_GPIO
#define CONFIG_CMD_MMC
#define CONFIG_CMD_BOOTZ

/* Memory configurations */
#define CONFIG_NR_DRAM_BANKS		1		/* 1 bank of DRAM */
#define PHYS_SDRAM_1			0x40000000	/* Base address */
#define PHYS_SDRAM_1_SIZE		0x08000000	/* Max 128 MB 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	0x00000000
#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	"=> "
#define CONFIG_SYS_CBSIZE	256		/* 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 */

/* DMA */
#define CONFIG_APBH_DMA

/* MMC Driver */
#ifdef	CONFIG_CMD_MMC
#define CONFIG_MMC
#define CONFIG_GENERIC_MMC
#define CONFIG_BOUNCE_BUFFER
#define CONFIG_MXS_MMC
#endif

/* Boot Linux */
#define CONFIG_CMDLINE_TAG
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_BOOTDELAY	1
#define CONFIG_BOOTFILE	"uImage"
#define CONFIG_LOADADDR	0x42000000
#define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
#define CONFIG_OF_LIBFDT

/* Environment */
#define CONFIG_ENV_IS_IN_MMC
#ifdef CONFIG_ENV_IS_IN_MMC
 #define CONFIG_ENV_OFFSET	(256 * 1024)
 #define CONFIG_ENV_SIZE	(16 * 1024)
 #define CONFIG_SYS_MMC_ENV_DEV 0
#endif

/* Extra Environments */
#define CONFIG_EXTRA_ENV_SETTINGS \
	"update_sd_firmware_filename=u-boot.sd\0" \
	"update_sd_firmware="		/* Update the SD firmware partition */ \
		"if mmc rescan ; then "	\
		"if tftp ${update_sd_firmware_filename} ; then " \
		"setexpr fw_sz ${filesize} / 0x200 ; "	/* SD block size */ \
		"setexpr fw_sz ${fw_sz} + 1 ; "	\
		"mmc write ${loadaddr} 0x800 ${fw_sz} ; " \
		"fi ; "	\
		"fi\0" \
	"script=boot.scr\0"	\
	"uimage=uImage\0" \
	"console=ttyAMA0\0" \
	"fdt_file=imx23-evk.dtb\0" \
	"fdt_addr=0x41000000\0" \
	"boot_fdt=try\0" \
	"mmcdev=0\0" \
	"mmcpart=2\0" \
	"mmcroot=/dev/mmcblk0p3 rw rootwait\0" \
	"mmcargs=setenv bootargs console=${console},${baudrate} " \
		"root=${mmcroot}\0" \
	"loadbootscript="  \
		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
	"bootscript=echo Running bootscript from mmc ...; "	\
		"source\0" \
	"loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
	"mmcboot=echo Booting from mmc ...; " \
		"run mmcargs; " \
		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
			"if run loadfdt; then " \
				"bootm ${loadaddr} - ${fdt_addr}; " \
			"else " \
				"if test ${boot_fdt} = try; then " \
					"bootm; " \
				"else " \
					"echo WARN: Cannot load the DT; " \
				"fi; " \
			"fi; " \
		"else " \
			"bootm; " \
		"fi;\0"

#define CONFIG_BOOTCOMMAND \
	"mmc dev ${mmcdev}; if mmc rescan; then " \
		"if run loadbootscript; then " \
			"run bootscript; " \
		"else " \
			"if run loaduimage; then " \
				"run mmcboot; " \
			"else " \
				"echo ERR: Fail to boot from MMC; " \
			"fi; " \
		"fi; " \
	"else exit; fi"

#endif /* __MX23EVK_CONFIG_H__ */