blob: 3d55d36c6ec530cbe8d9b2b3c1250f5b01cb56db [file] [log] [blame]
Stephen Warren0d04f342012-08-05 16:07:22 +00001/*
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
20#include <asm/sizes.h>
21
22/* Architecture, CPU, etc.*/
23#define CONFIG_ARM1176
24#define CONFIG_BCM2835
25#define CONFIG_ARCH_CPU_INIT
Stephen Warren38baa4f2013-01-29 16:37:39 +000026#define CONFIG_SYS_DCACHE_OFF
Stephen Warren0d04f342012-08-05 16:07:22 +000027/*
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
33/* Timer */
34#define CONFIG_SYS_HZ 1000000
35
36/* Memory layout */
37#define CONFIG_NR_DRAM_BANKS 1
38#define CONFIG_SYS_SDRAM_BASE 0x00000000
39#define CONFIG_SYS_TEXT_BASE 0x00008000
40#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
41/*
42 * The board really has 256M. However, the VC (VideoCore co-processor) shares
43 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
44 * smaller amount of RAM is present in order to avoid stomping on the area
45 * the VC uses.
46 */
47#define CONFIG_SYS_SDRAM_SIZE SZ_128M
48#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
49 CONFIG_SYS_SDRAM_SIZE - \
50 GENERATED_GBL_DATA_SIZE)
51#define CONFIG_SYS_MALLOC_LEN SZ_4M
52#define CONFIG_SYS_MEMTEST_START 0x00100000
53#define CONFIG_SYS_MEMTEST_END 0x00200000
Stephen Warren131a1e62013-01-29 16:37:42 +000054#define CONFIG_LOADADDR 0x00200000
Stephen Warren0d04f342012-08-05 16:07:22 +000055
56/* Flash */
57#define CONFIG_SYS_NO_FLASH
58
59/* Devices */
60/* GPIO */
61#define CONFIG_BCM2835_GPIO
Stephen Warren6be3c9f2013-01-29 16:37:40 +000062/* LCD */
63#define CONFIG_LCD
64#define LCD_BPP LCD_COLOR16
65/*
66 * Prevent allocation of RAM for FB; the real FB address is queried
67 * dynamically from the VideoCore co-processor, and comes from RAM
68 * not owned by the ARM CPU.
69 */
70#define CONFIG_FB_ADDR 0
71#define CONFIG_VIDEO_BCM2835
72#define CONFIG_SYS_WHITE_ON_BLACK
Stephen Warren0d04f342012-08-05 16:07:22 +000073
Stephen Warren131a1e62013-01-29 16:37:42 +000074/* SD/MMC configuration */
75#define CONFIG_GENERIC_MMC
76#define CONFIG_MMC
77#define CONFIG_SDHCI
78#define CONFIG_MMC_SDHCI_IO_ACCESSORS
79#define CONFIG_BCM2835_SDHCI
80
Stephen Warren0d04f342012-08-05 16:07:22 +000081/* Console UART */
82#define CONFIG_PL011_SERIAL
83#define CONFIG_PL011_CLOCK 3000000
84#define CONFIG_PL01x_PORTS { (void *)0x20201000 }
85#define CONFIG_CONS_INDEX 0
86#define CONFIG_BAUDRATE 115200
87
88/* Console configuration */
89#define CONFIG_SYS_CBSIZE 1024
90#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
91 sizeof(CONFIG_SYS_PROMPT) + 16)
92
93/* Environment */
94#define CONFIG_ENV_SIZE SZ_16K
95#define CONFIG_ENV_IS_NOWHERE
Stephen Warren131a1e62013-01-29 16:37:42 +000096#define CONFIG_ENV_VARS_UBOOT_CONFIG
Stephen Warren0d04f342012-08-05 16:07:22 +000097#define CONFIG_SYS_LOAD_ADDR 0x1000000
Stephen Warren6be3c9f2013-01-29 16:37:40 +000098#define CONFIG_CONSOLE_MUX
99#define CONFIG_SYS_CONSOLE_IS_IN_ENV
Stephen Warren131a1e62013-01-29 16:37:42 +0000100/*
101 * Memory layout for where various images get loaded by boot scripts:
102 *
103 * scriptaddr can be pretty much anywhere that doesn't conflict with something
104 * else. Put it low in memory to avoid conflicts.
105 *
106 * kernel_addr_r must be within the first 128M of RAM in order for the
107 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
108 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
109 * should not overlap that area, or the kernel will have to copy itself
110 * somewhere else before decompression. Similarly, the address of any other
111 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
112 * this up to 16M allows for a sizable kernel to be decompressed below the
113 * compressed load address.
114 *
115 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
116 * the compressed kernel to be up to 16M too.
117 *
118 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
119 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
120 */
121#define CONFIG_EXTRA_ENV_SETTINGS \
122 "stdin=serial\0" \
123 "stderr=serial,lcd\0" \
124 "stdout=serial,lcd\0" \
125 "scriptaddr=0x00000000\0" \
126 "kernel_addr_r=0x01000000\0" \
127 "fdt_addr_r=0x02000000\0" \
128 "ramdisk_addr_r=0x02100000\0" \
129 "boot_targets=mmc0\0" \
130 \
131 "script_boot=" \
132 "if fatload ${devtype} ${devnum}:1 " \
133 "${scriptaddr} boot.scr.uimg; then " \
134 "source ${scriptaddr}; " \
135 "fi;\0" \
136 \
137 "mmc_boot=" \
138 "setenv devtype mmc; " \
139 "if mmc dev ${devnum}; then " \
140 "run script_boot; " \
141 "fi\0" \
142 \
143 "bootcmd_mmc0=setenv devnum 0; run mmc_boot\0" \
144
145#define CONFIG_BOOTCOMMAND \
146 "for target in ${boot_targets}; do run bootcmd_${target}; done"
147
148#define CONFIG_BOOTDELAY 2
Stephen Warren0d04f342012-08-05 16:07:22 +0000149
150/* Shell */
151#define CONFIG_SYS_HUSH_PARSER
152#define CONFIG_SYS_MAXARGS 8
153#define CONFIG_SYS_PROMPT "U-Boot> "
154#define CONFIG_SYS_LONGHELP
155#define CONFIG_CMDLINE_EDITING
156#define CONFIG_COMMAND_HISTORY
157#define CONFIG_AUTO_COMPLETE
158
159/* Commands */
160#include <config_cmd_default.h>
161#define CONFIG_CMD_BOOTZ
162#define CONFIG_CMD_GPIO
Stephen Warren131a1e62013-01-29 16:37:42 +0000163#define CONFIG_CMD_MMC
164#define CONFIG_DOS_PARTITION
165#define CONFIG_PARTITION_UUIDS
166#define CONFIG_CMD_PART
167#define CONFIG_CMD_FS_GENERIC
168#define CONFIG_CMD_FAT
169#define CONFIG_CMD_EXT
Stephen Warren0d04f342012-08-05 16:07:22 +0000170/* Some things don't make sense on this HW or yet */
171#undef CONFIG_CMD_FPGA
172#undef CONFIG_CMD_NET
173#undef CONFIG_CMD_NFS
174#undef CONFIG_CMD_SAVEENV
175
176/* Device tree support for bootm/bootz */
177#define CONFIG_OF_LIBFDT
178/* ATAGs support for bootm/bootz */
179#define CONFIG_SETUP_MEMORY_TAGS
180#define CONFIG_CMDLINE_TAG
181#define CONFIG_INITRD_TAG
182
183#endif