u-boot/include/configs/mx28evk.h

/*
 * (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
#define CONFIG_SPL_GPIO_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_DATE
#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
#define CONFIG_CMD_SF
#define CONFIG_CMD_SPI
#define CONFIG_CMD_USB
#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		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	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	"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

/*
 * 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
 */
#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
#define CONFIG_CMD_SAVEENV
#ifdef	CONFIG_CMD_MMC
#define CONFIG_MMC
#define CONFIG_GENERIC_MMC
#define CONFIG_MMC_BOUNCE_BUFFER
#define CONFIG_MXS_MMC
#endif

/*
 * NAND Driver
 */
#ifdef CONFIG_CMD_NAND
#define CONFIG_NAND_MXS
#define CONFIG_SYS_MAX_NAND_DEVICE	1
#define CONFIG_SYS_NAND_BASE		0x60000000
#define CONFIG_SYS_NAND_5_ADDR_CYCLE
#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

/*
 * RTC
 */
#ifdef	CONFIG_CMD_DATE
#define	CONFIG_RTC_MXS
#endif

/*
 * USB
 */
#ifdef	CONFIG_CMD_USB
#define	CONFIG_USB_EHCI
#define	CONFIG_USB_EHCI_MXS
#define	CONFIG_EHCI_MXS_PORT 1
#define	CONFIG_EHCI_IS_TDI
#define	CONFIG_USB_STORAGE
#endif

/*
 * SPI
 */
#ifdef CONFIG_CMD_SPI
#define CONFIG_HARD_SPI
#define CONFIG_MXS_SPI
#define CONFIG_SPI_HALF_DUPLEX
#define CONFIG_DEFAULT_SPI_BUS		2
#define CONFIG_DEFAULT_SPI_MODE		SPI_MODE_0

/* SPI Flash */
#ifdef CONFIG_CMD_SF
#define CONFIG_SPI_FLASH
#define CONFIG_SF_DEFAULT_BUS	2
#define CONFIG_SF_DEFAULT_CS	0
/* this may vary and depends on the installed chip */
#define CONFIG_SPI_FLASH_SST
#define CONFIG_SF_DEFAULT_MODE		SPI_MODE_0
#define CONFIG_SF_DEFAULT_SPEED		24000000

/* (redundant) environemnt in SPI flash */
#undef CONFIG_ENV_IS_IN_SPI_FLASH
#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
#define CONFIG_ENV_SIZE			0x1000		/* 4KB */
#define CONFIG_ENV_OFFSET		0x40000		/* 256K */
#define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
#define CONFIG_ENV_SECT_SIZE		0x1000
#define CONFIG_ENV_SPI_CS		0
#define CONFIG_ENV_SPI_BUS		2
#define CONFIG_ENV_SPI_MAX_HZ		24000000
#define CONFIG_ENV_SPI_MODE		SPI_MODE_0
#endif
#endif
#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
#define CONFIG_OF_LIBFDT

/*
 * 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 */