Custom u-boot settings for RPI

rpi_b.h

/*
 * (C) Copyright 2012 Stephen Warren
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * 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/sizes.h>

/* Architecture, CPU, etc.*/
#define CONFIG_ARM1176
#define CONFIG_BCM2835
#define CONFIG_ARCH_CPU_INIT
#define CONFIG_MISC_INIT_R
/*
 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
 * so 2708 has historically been used rather than a dedicated 2835 ID.
 */
#define CONFIG_MACH_TYPE		MACH_TYPE_BCM2708

/* Timer */
#define CONFIG_SYS_HZ			1000000

/* Memory layout */
#define CONFIG_NR_DRAM_BANKS		1

#define CONFIG_SYS_SDRAM_BASE		0x00000000
#define CONFIG_SYS_TEXT_BASE		0x00008000
#define CONFIG_SYS_UBOOT_BASE		CONFIG_SYS_TEXT_BASE
/*
 * The board really has 256M. However, the VC (VideoCore co-processor) shares
 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
 * smaller amount of RAM is present in order to avoid stomping on the area
 * the VC uses.
 */
#define CONFIG_SYS_SDRAM_SIZE		SZ_128M
#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + \
					 CONFIG_SYS_SDRAM_SIZE - \
					 GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_MALLOC_LEN		SZ_4M
#define CONFIG_SYS_MEMTEST_START	0x00100000
#define CONFIG_SYS_MEMTEST_END		0x00200000
#define CONFIG_LOADADDR			0x00200000

/* Flash */
#define CONFIG_SYS_NO_FLASH

/* Devices */
/* GPIO */
/* U-Boot-Doesn't need GPIO */
/* #define CONFIG_BCM2835_GPIO */

/* LCD */
#define CONFIG_LCD
#define LCD_BPP				LCD_COLOR16
/*
 * Prevent allocation of RAM for FB; the real FB address is queried
 * dynamically from the VideoCore co-processor, and comes from RAM
 * not owned by the ARM CPU.
 */
#define CONFIG_FB_ADDR			0
#define CONFIG_VIDEO_BCM2835
#define CONFIG_SYS_WHITE_ON_BLACK

/* Console UART */
/* Disabled.  No need for a console on UART */
/*
#define CONFIG_PL011_SERIAL
#define CONFIG_PL011_CLOCK		3000000
#define CONFIG_PL01x_PORTS		{ (void *)0x20201000 }
#define CONFIG_CONS_INDEX		0
#define CONFIG_BAUDRATE			115200
*/

/* Disable Serial Console */
#define CONFIG_8xx_CONS_NONE

/* Console configuration */
/* Disabled.  No need to configure console */
/*
#define CONFIG_SYS_CBSIZE		1024
#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE +		\
					 sizeof(CONFIG_SYS_PROMPT) + 16)
*/

/* SD/MMC configuration */
#define CONFIG_GENERIC_MMC
#define CONFIG_MMC
#define CONFIG_SDHCI
#define	CONFIG_MMC_SDHCI_IO_ACCESSORS
#define CONFIG_SYS_MMC_MAX_DEVICE 1
#define CONFIG_BCM2835_SDHCI

/* Environment */
#define CONFIG_ENV_SIZE			SZ_16K
#define CONFIG_ENV_IS_NOWHERE
#define CONFIG_ENV_VARS_UBOOT_CONFIG
#define CONFIG_SYS_LOAD_ADDR		0x1000000
#define CONFIG_CONSOLE_MUX
#define CONFIG_SYS_CONSOLE_IS_IN_ENV
#define CONFIG_BOOTDELAY	5

/* Removed serial from stdin, stderr, and stdout */
/* Left stdin blank on purpose.  I don't want any input allowed during u-boot */
#define CONFIG_EXTRA_ENV_SETTINGS \
	"stdin=\0" \
	"stderr=lcd\0" \
	"stdout=lcd\0" \
	"mmcdev=0\0" \
	"loadbootscript=fatload mmc ${mmcdev} ${loadaddr} boot.scr\0" \
	"bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
		"source ${loadaddr}\0" \
	"bootenv=uEnv.txt\0" \
	"loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
	"importbootenv=echo Importing environment from mmc ...; " \
		"env import -t $loadaddr $filesize\0" \

#define CONFIG_BOOTCOMMAND \
	"if mmc rescan ${mmcdev}; then " \
		"if run loadbootenv; then " \
			"run importbootenv; " \
		"fi; " \
		"if run loadbootscript; then " \
			"run bootscript; " \
		"fi; " \
	"fi"

/* Shell */
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_MAXARGS		8
#define CONFIG_SYS_PROMPT		"U-Boot> "
#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
#define CONFIG_SYS_LONGHELP
#define CONFIG_CMDLINE_EDITING
#define CONFIG_COMMAND_HISTORY
#define CONFIG_AUTO_COMPLETE
#define CONFIG_API

/* Commands */
#include <config_cmd_default.h>

/* Some things don't make sense on this HW or yet */
#undef CONFIG_CMD_FPGA
#undef CONFIG_CMD_SAVEENV

#define CONFIG_CMD_SOURCE

/* USB Networking options */
#define CONFIG_USB_HOST_ETHER
#define CONFIG_USB_ETHER_SMSC95XX
#define CONFIG_USB_DWC_OTG
#define	CONFIG_USB_STORAGE
/* Required for USB */
#define CONFIG_DOS_PARTITION
#define CONFIG_PARTITION_UUIDS

/* Commands */
#define CONFIG_CMD_RUN
#define CONFIG_CMD_ELF
#define CONFIG_CMD_ECHO
#define CONFIG_CMD_MEMORY
#define CONFIG_CMD_MISC
#define CONFIG_CMD_LOADB
#define CONFIG_CMD_USB
#define CONFIG_CMD_NET
#define CONFIG_CMD_PING
#define CONFIG_CMD_DHCP

#define CONFIG_CMD_MMC
#define CONFIG_CMD_FAT
#define	CONFIG_CMD_EXT2
#define	CONFIG_CMD_EXT
#define	CONFIG_CMD_FS_GENERIC
#define	CONFIG_CMD_PART

#define CONFIG_CMD_BOOTZ
#define CONFIG_CMD_GPIO

/* Device tree support for bootm/bootz */
#define CONFIG_OF_LIBFDT
/* ATAGs support for bootm/bootz */
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_CMDLINE_TAG
#define CONFIG_INITRD_TAG
#define CONFIG_CMD_BMP

#endif