include/configs/rpi_b.h - platform/external/u-boot - Gitiles

 /*
  * (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_SYS_DCACHE_OFF
 /*
  * 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

 /* 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 */
 #define CONFIG_BCM2835_GPIO
 /* LCD */
 #define CONFIG_LCD
 #define CONFIG_LCD_DT_SIMPLEFB
 #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

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

 /* Console 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

 /* Console configuration */
 #define CONFIG_SYS_CBSIZE		1024
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE +		\
 					 sizeof(CONFIG_SYS_PROMPT) + 16)

 /* 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_PREBOOT \
 	"if load mmc 0:1 ${loadaddr} /uEnv.txt; then " \
 		"env import -t ${loadaddr} ${filesize}; " \
 	"fi"

 #define ENV_DEVICE_SETTINGS \
 	"stdin=serial,lcd\0" \
 	"stdout=serial,lcd\0" \
 	"stderr=serial,lcd\0"

 /*
  * Memory layout for where various images get loaded by boot scripts:
  *
  * scriptaddr can be pretty much anywhere that doesn't conflict with something
  *   else. Put it low in memory to avoid conflicts.
  *
  * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
  *   something else. Put it low in memory to avoid conflicts.
  *
  * kernel_addr_r must be within the first 128M of RAM in order for the
  *   kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
  *   decompress itself to 0x8000 after the start of RAM, kernel_addr_r
  *   should not overlap that area, or the kernel will have to copy itself
  *   somewhere else before decompression. Similarly, the address of any other
  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
  *   this up to 16M allows for a sizable kernel to be decompressed below the
  *   compressed load address.
  *
  * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
  *   the compressed kernel to be up to 16M too.
  *
  * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
  */
 #define ENV_MEM_LAYOUT_SETTINGS \
 	"scriptaddr=0x00000000\0" \
 	"pxefile_addr_r=0x00100000\0" \
 	"kernel_addr_r=0x01000000\0" \
 	"fdt_addr_r=0x02000000\0" \
 	"fdtfile=bcm2835-rpi-b.dtb\0" \
 	"ramdisk_addr_r=0x02100000\0" \

 #define BOOTCMDS_MMC \
 	"mmc_boot=" \
 		"setenv devtype mmc; " \
 		"if mmc dev ${devnum}; then " \
 			"run scan_boot; " \
 		"fi\0" \
 	"bootcmd_mmc0=setenv devnum 0; run mmc_boot;\0"
 #define BOOT_TARGETS_MMC "mmc0"

 #define BOOTCMDS_COMMON \
 	"rootpart=1\0" \
 	\
 	"do_script_boot="                                                 \
 		"load ${devtype} ${devnum}:${rootpart} "                  \
 			"${scriptaddr} ${prefix}${script}; "              \
 		"source ${scriptaddr}\0"                                  \
 	\
 	"script_boot="                                                    \
 		"for script in ${boot_scripts}; do "                      \
 			"if test -e ${devtype} ${devnum}:${rootpart} "    \
 					"${prefix}${script}; then "       \
 				"echo Found ${prefix}${script}; "         \
 				"run do_script_boot; "                    \
 				"echo SCRIPT FAILED: continuing...; "     \
 			"fi; "                                            \
 		"done\0"                                                  \
 	\
 	"do_sysboot_boot="                                                \
 		"sysboot ${devtype} ${devnum}:${rootpart} any "           \
 			"${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
 	\
 	"sysboot_boot="                                                   \
 		"if test -e ${devtype} ${devnum}:${rootpart} "            \
 				"${prefix}extlinux/extlinux.conf; then "  \
 			"echo Found ${prefix}extlinux/extlinux.conf; "    \
 			"run do_sysboot_boot; "                           \
 			"echo SCRIPT FAILED: continuing...; "             \
 		"fi\0"                                                    \
 	\
 	"scan_boot="                                                      \
 		"echo Scanning ${devtype} ${devnum}...; "                 \
 		"for prefix in ${boot_prefixes}; do "                     \
 			"run sysboot_boot; "                              \
 			"run script_boot; "                               \
 		"done\0"                                                  \
 	\
 	"boot_targets=" \
 		BOOT_TARGETS_MMC " " \
 		"\0" \
 	\
 	"boot_prefixes=/\0" \
 	\
 	"boot_scripts=boot.scr.uimg\0" \
 	\
 	BOOTCMDS_MMC

 #define CONFIG_BOOTCOMMAND \
 	"for target in ${boot_targets}; do run bootcmd_${target}; done"

 #define CONFIG_BOOTCOMMAND \
 	"for target in ${boot_targets}; do run bootcmd_${target}; done"

 #define CONFIG_EXTRA_ENV_SETTINGS \
 	ENV_DEVICE_SETTINGS \
 	ENV_MEM_LAYOUT_SETTINGS \
 	BOOTCMDS_COMMON

 #define CONFIG_BOOTDELAY 2

 /* Shell */
 #define CONFIG_SYS_MAXARGS		8
 #define CONFIG_SYS_PROMPT		"U-Boot> "
 #define CONFIG_COMMAND_HISTORY

 /* Commands */
 #include <config_cmd_default.h>
 #define CONFIG_CMD_GPIO
 #define CONFIG_CMD_MMC
 #define CONFIG_PARTITION_UUIDS
 #define CONFIG_CMD_PART

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

 #include <config_distro_defaults.h>

 /* Some things don't make sense on this HW or yet */
 #undef CONFIG_CMD_FPGA
 #undef CONFIG_CMD_NET
 #undef CONFIG_CMD_NFS
 #undef CONFIG_CMD_SAVEENV
 #undef CONFIG_CMD_DHCP
 #undef CONFIG_CMD_MII
 #undef CONFIG_CMD_NET
 #undef CONFIG_CMD_PING

 #endif
	/*
	* (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_SYS_DCACHE_OFF
	/*
	* 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

	/* 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 */
	#define CONFIG_BCM2835_GPIO
	/* LCD */
	#define CONFIG_LCD
	#define CONFIG_LCD_DT_SIMPLEFB
	#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

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

	/* Console 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

	/* Console configuration */
	#define CONFIG_SYS_CBSIZE 1024
	#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
	sizeof(CONFIG_SYS_PROMPT) + 16)

	/* 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_PREBOOT \
	"if load mmc 0:1 ${loadaddr} /uEnv.txt; then " \
	"env import -t ${loadaddr} ${filesize}; " \
	"fi"

	#define ENV_DEVICE_SETTINGS \
	"stdin=serial,lcd\0" \
	"stdout=serial,lcd\0" \
	"stderr=serial,lcd\0"

	/*
	* Memory layout for where various images get loaded by boot scripts:
	*
	* scriptaddr can be pretty much anywhere that doesn't conflict with something
	* else. Put it low in memory to avoid conflicts.
	*
	* pxefile_addr_r can be pretty much anywhere that doesn't conflict with
	* something else. Put it low in memory to avoid conflicts.
	*
	* kernel_addr_r must be within the first 128M of RAM in order for the
	* kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
	* decompress itself to 0x8000 after the start of RAM, kernel_addr_r
	* should not overlap that area, or the kernel will have to copy itself
	* somewhere else before decompression. Similarly, the address of any other
	* data passed to the kernel shouldn't overlap the start of RAM. Pushing
	* this up to 16M allows for a sizable kernel to be decompressed below the
	* compressed load address.
	*
	* fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
	* the compressed kernel to be up to 16M too.
	*
	* ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
	* for the FDT/DTB to be up to 1M, which is hopefully plenty.
	*/
	#define ENV_MEM_LAYOUT_SETTINGS \
	"scriptaddr=0x00000000\0" \
	"pxefile_addr_r=0x00100000\0" \
	"kernel_addr_r=0x01000000\0" \
	"fdt_addr_r=0x02000000\0" \
	"fdtfile=bcm2835-rpi-b.dtb\0" \
	"ramdisk_addr_r=0x02100000\0" \

	#define BOOTCMDS_MMC \
	"mmc_boot=" \
	"setenv devtype mmc; " \
	"if mmc dev ${devnum}; then " \
	"run scan_boot; " \
	"fi\0" \
	"bootcmd_mmc0=setenv devnum 0; run mmc_boot;\0"
	#define BOOT_TARGETS_MMC "mmc0"

	#define BOOTCMDS_COMMON \
	"rootpart=1\0" \
	\
	"do_script_boot=" \
	"load ${devtype} ${devnum}:${rootpart} " \
	"${scriptaddr} ${prefix}${script}; " \
	"source ${scriptaddr}\0" \
	\
	"script_boot=" \
	"for script in ${boot_scripts}; do " \
	"if test -e ${devtype} ${devnum}:${rootpart} " \
	"${prefix}${script}; then " \
	"echo Found ${prefix}${script}; " \
	"run do_script_boot; " \
	"echo SCRIPT FAILED: continuing...; " \
	"fi; " \
	"done\0" \
	\
	"do_sysboot_boot=" \
	"sysboot ${devtype} ${devnum}:${rootpart} any " \
	"${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
	\
	"sysboot_boot=" \
	"if test -e ${devtype} ${devnum}:${rootpart} " \
	"${prefix}extlinux/extlinux.conf; then " \
	"echo Found ${prefix}extlinux/extlinux.conf; " \
	"run do_sysboot_boot; " \
	"echo SCRIPT FAILED: continuing...; " \
	"fi\0" \
	\
	"scan_boot=" \
	"echo Scanning ${devtype} ${devnum}...; " \
	"for prefix in ${boot_prefixes}; do " \
	"run sysboot_boot; " \
	"run script_boot; " \
	"done\0" \
	\
	"boot_targets=" \
	BOOT_TARGETS_MMC " " \
	"\0" \
	\
	"boot_prefixes=/\0" \
	\
	"boot_scripts=boot.scr.uimg\0" \
	\
	BOOTCMDS_MMC

	#define CONFIG_BOOTCOMMAND \
	"for target in ${boot_targets}; do run bootcmd_${target}; done"

	#define CONFIG_BOOTCOMMAND \
	"for target in ${boot_targets}; do run bootcmd_${target}; done"

	#define CONFIG_EXTRA_ENV_SETTINGS \
	ENV_DEVICE_SETTINGS \
	ENV_MEM_LAYOUT_SETTINGS \
	BOOTCMDS_COMMON

	#define CONFIG_BOOTDELAY 2

	/* Shell */
	#define CONFIG_SYS_MAXARGS 8
	#define CONFIG_SYS_PROMPT "U-Boot> "
	#define CONFIG_COMMAND_HISTORY

	/* Commands */
	#include <config_cmd_default.h>
	#define CONFIG_CMD_GPIO
	#define CONFIG_CMD_MMC
	#define CONFIG_PARTITION_UUIDS
	#define CONFIG_CMD_PART

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

	#include <config_distro_defaults.h>

	/* Some things don't make sense on this HW or yet */
	#undef CONFIG_CMD_FPGA
	#undef CONFIG_CMD_NET
	#undef CONFIG_CMD_NFS
	#undef CONFIG_CMD_SAVEENV
	#undef CONFIG_CMD_DHCP
	#undef CONFIG_CMD_MII
	#undef CONFIG_CMD_NET
	#undef CONFIG_CMD_PING

	#endif