[J-u-boot.git] / include / configs / 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 <linux/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
Commit	Line	Data
0d04f34a SW	1	/*
	2	* (C) Copyright 2012 Stephen Warren
	3	*
	4	* See file CREDITS for list of people who contributed to this
	5	* project.
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License
	9	* version 2 as published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*/
	16
	17	#ifndef __CONFIG_H
	18	#define __CONFIG_H
	19
1ace4022	20	#include <linux/sizes.h>
0d04f34a SW	21
	22	/* Architecture, CPU, etc.*/
	23	#define CONFIG_ARM1176
	24	#define CONFIG_BCM2835
	25	#define CONFIG_ARCH_CPU_INIT
38baa4f6	26	#define CONFIG_SYS_DCACHE_OFF
0d04f34a SW	27	/*
	28	* 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
	29	* so 2708 has historically been used rather than a dedicated 2835 ID.
	30	*/
	31	#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
	32
0d04f34a SW	33	/* Memory layout */
	34	#define CONFIG_NR_DRAM_BANKS 1
	35	#define CONFIG_SYS_SDRAM_BASE 0x00000000
	36	#define CONFIG_SYS_TEXT_BASE 0x00008000
	37	#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
	38	/*
	39	* The board really has 256M. However, the VC (VideoCore co-processor) shares
	40	* the RAM, and uses a configurable portion at the top. We tell U-Boot that a
	41	* smaller amount of RAM is present in order to avoid stomping on the area
	42	* the VC uses.
	43	*/
	44	#define CONFIG_SYS_SDRAM_SIZE SZ_128M
	45	#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
	46	CONFIG_SYS_SDRAM_SIZE - \
	47	GENERATED_GBL_DATA_SIZE)
	48	#define CONFIG_SYS_MALLOC_LEN SZ_4M
	49	#define CONFIG_SYS_MEMTEST_START 0x00100000
	50	#define CONFIG_SYS_MEMTEST_END 0x00200000
131a1e60	51	#define CONFIG_LOADADDR 0x00200000
0d04f34a SW	52
	53	/* Flash */
	54	#define CONFIG_SYS_NO_FLASH
	55
	56	/* Devices */
	57	/* GPIO */
	58	#define CONFIG_BCM2835_GPIO
6be3c9fc SW	59	/* LCD */
6be3c9fc SW	60	#define CONFIG_LCD
ea697ae7	61	#define CONFIG_LCD_DT_SIMPLEFB
6be3c9fc SW	62	#define LCD_BPP LCD_COLOR16
	63	/*
	64	* Prevent allocation of RAM for FB; the real FB address is queried
	65	* dynamically from the VideoCore co-processor, and comes from RAM
	66	* not owned by the ARM CPU.
	67	*/
	68	#define CONFIG_FB_ADDR 0
	69	#define CONFIG_VIDEO_BCM2835
	70	#define CONFIG_SYS_WHITE_ON_BLACK
0d04f34a	71
131a1e60 SW	72	/* SD/MMC configuration */
	73	#define CONFIG_GENERIC_MMC
	74	#define CONFIG_MMC
	75	#define CONFIG_SDHCI
	76	#define CONFIG_MMC_SDHCI_IO_ACCESSORS
	77	#define CONFIG_BCM2835_SDHCI
	78
0d04f34a SW	79	/* Console UART */
	80	#define CONFIG_PL011_SERIAL
	81	#define CONFIG_PL011_CLOCK 3000000
	82	#define CONFIG_PL01x_PORTS { (void *)0x20201000 }
	83	#define CONFIG_CONS_INDEX 0
	84	#define CONFIG_BAUDRATE 115200
	85
	86	/* Console configuration */
	87	#define CONFIG_SYS_CBSIZE 1024
	88	#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
	89	sizeof(CONFIG_SYS_PROMPT) + 16)
	90
	91	/* Environment */
	92	#define CONFIG_ENV_SIZE SZ_16K
	93	#define CONFIG_ENV_IS_NOWHERE
131a1e60	94	#define CONFIG_ENV_VARS_UBOOT_CONFIG
0d04f34a	95	#define CONFIG_SYS_LOAD_ADDR 0x1000000
6be3c9fc SW	96	#define CONFIG_CONSOLE_MUX
6be3c9fc SW	97	#define CONFIG_SYS_CONSOLE_IS_IN_ENV
5c92d482 SW	98	#define CONFIG_PREBOOT \
	99	"if load mmc 0:1 ${loadaddr} /uEnv.txt; then " \
	100	"env import -t ${loadaddr} ${filesize}; " \
	101	"fi"
	102
1998a1a6 SW	103	#define ENV_DEVICE_SETTINGS \
	104	"stdin=serial,lcd\0" \
	105	"stdout=serial,lcd\0" \
	106	"stderr=serial,lcd\0"
	107
131a1e60 SW	108	/*
	109	* Memory layout for where various images get loaded by boot scripts:
	110	*
	111	* scriptaddr can be pretty much anywhere that doesn't conflict with something
	112	* else. Put it low in memory to avoid conflicts.
	113	*
1998a1a6 SW	114	* pxefile_addr_r can be pretty much anywhere that doesn't conflict with
	115	* something else. Put it low in memory to avoid conflicts.
	116	*
131a1e60 SW	117	* kernel_addr_r must be within the first 128M of RAM in order for the
	118	* kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
	119	* decompress itself to 0x8000 after the start of RAM, kernel_addr_r
	120	* should not overlap that area, or the kernel will have to copy itself
	121	* somewhere else before decompression. Similarly, the address of any other
	122	* data passed to the kernel shouldn't overlap the start of RAM. Pushing
	123	* this up to 16M allows for a sizable kernel to be decompressed below the
	124	* compressed load address.
	125	*
	126	* fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
	127	* the compressed kernel to be up to 16M too.
	128	*
	129	* ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
	130	* for the FDT/DTB to be up to 1M, which is hopefully plenty.
	131	*/
1998a1a6	132	#define ENV_MEM_LAYOUT_SETTINGS \
131a1e60	133	"scriptaddr=0x00000000\0" \
1998a1a6	134	"pxefile_addr_r=0x00100000\0" \
131a1e60 SW	135	"kernel_addr_r=0x01000000\0" \
131a1e60 SW	136	"fdt_addr_r=0x02000000\0" \
bccaa476	137	"fdtfile=bcm2835-rpi-b.dtb\0" \
131a1e60	138	"ramdisk_addr_r=0x02100000\0" \
1998a1a6 SW	139
1998a1a6 SW	140	#define BOOTCMDS_MMC \
131a1e60 SW	141	"mmc_boot=" \
	142	"setenv devtype mmc; " \
	143	"if mmc dev ${devnum}; then " \
1998a1a6	144	"run scan_boot; " \
131a1e60	145	"fi\0" \
1998a1a6 SW	146	"bootcmd_mmc0=setenv devnum 0; run mmc_boot;\0"
	147	#define BOOT_TARGETS_MMC "mmc0"
	148
	149	#define BOOTCMDS_COMMON \
	150	"rootpart=1\0" \
	151	\
	152	"do_script_boot=" \
	153	"load ${devtype} ${devnum}:${rootpart} " \
	154	"${scriptaddr} ${prefix}${script}; " \
	155	"source ${scriptaddr}\0" \
	156	\
	157	"script_boot=" \
	158	"for script in ${boot_scripts}; do " \
	159	"if test -e ${devtype} ${devnum}:${rootpart} " \
	160	"${prefix}${script}; then " \
	161	"echo Found ${prefix}${script}; " \
	162	"run do_script_boot; " \
	163	"echo SCRIPT FAILED: continuing...; " \
	164	"fi; " \
	165	"done\0" \
131a1e60	166	\
1998a1a6 SW	167	"do_sysboot_boot=" \
	168	"sysboot ${devtype} ${devnum}:${rootpart} any " \
	169	"${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
	170	\
	171	"sysboot_boot=" \
	172	"if test -e ${devtype} ${devnum}:${rootpart} " \
	173	"${prefix}extlinux/extlinux.conf; then " \
	174	"echo Found ${prefix}extlinux/extlinux.conf; " \
	175	"run do_sysboot_boot; " \
	176	"echo SCRIPT FAILED: continuing...; " \
	177	"fi\0" \
	178	\
	179	"scan_boot=" \
	180	"echo Scanning ${devtype} ${devnum}...; " \
	181	"for prefix in ${boot_prefixes}; do " \
	182	"run sysboot_boot; " \
	183	"run script_boot; " \
	184	"done\0" \
	185	\
	186	"boot_targets=" \
	187	BOOT_TARGETS_MMC " " \
	188	"\0" \
	189	\
	190	"boot_prefixes=/\0" \
	191	\
	192	"boot_scripts=boot.scr.uimg\0" \
	193	\
	194	BOOTCMDS_MMC
131a1e60 SW	195
	196	#define CONFIG_BOOTCOMMAND \
	197	"for target in ${boot_targets}; do run bootcmd_${target}; done"
	198
1998a1a6 SW	199	#define CONFIG_BOOTCOMMAND \
	200	"for target in ${boot_targets}; do run bootcmd_${target}; done"
	201
	202	#define CONFIG_EXTRA_ENV_SETTINGS \
	203	ENV_DEVICE_SETTINGS \
	204	ENV_MEM_LAYOUT_SETTINGS \
	205	BOOTCMDS_COMMON
	206
	207	#define CONFIG_BOOTDELAY 2
0d04f34a SW	208
0d04f34a SW	209	/* Shell */
0d04f34a SW	210	#define CONFIG_SYS_MAXARGS 8
0d04f34a SW	211	#define CONFIG_SYS_PROMPT "U-Boot> "
0d04f34a	212	#define CONFIG_COMMAND_HISTORY
0d04f34a SW	213
	214	/* Commands */
	215	#include <config_cmd_default.h>
0d04f34a	216	#define CONFIG_CMD_GPIO
131a1e60	217	#define CONFIG_CMD_MMC
131a1e60 SW	218	#define CONFIG_PARTITION_UUIDS
131a1e60 SW	219	#define CONFIG_CMD_PART
0d04f34a	220
29235b73	221	/* Device tree support */
ea697ae7	222	#define CONFIG_OF_BOARD_SETUP
0d04f34a SW	223	/* ATAGs support for bootm/bootz */
	224	#define CONFIG_SETUP_MEMORY_TAGS
	225	#define CONFIG_CMDLINE_TAG
	226	#define CONFIG_INITRD_TAG
	227
29235b73 SW	228	#include <config_distro_defaults.h>
	229
	230	/* Some things don't make sense on this HW or yet */
	231	#undef CONFIG_CMD_FPGA
	232	#undef CONFIG_CMD_NET
	233	#undef CONFIG_CMD_NFS
	234	#undef CONFIG_CMD_SAVEENV
	235	#undef CONFIG_CMD_DHCP
	236	#undef CONFIG_CMD_MII
	237	#undef CONFIG_CMD_NET
	238	#undef CONFIG_CMD_PING
	239
0d04f34a	240	#endif