2 * (C) Copyright 2012 Stephen Warren
4 * See file CREDITS for list of people who contributed to this
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.
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.
20 #include <asm/sizes.h>
22 /* Architecture, CPU, etc.*/
23 #define CONFIG_ARM1176
24 #define CONFIG_BCM2835
25 #define CONFIG_ARCH_CPU_INIT
26 #define CONFIG_SYS_DCACHE_OFF
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.
31 #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
34 #define CONFIG_SYS_HZ 1000000
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
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
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
54 #define CONFIG_LOADADDR 0x00200000
57 #define CONFIG_SYS_NO_FLASH
61 #define CONFIG_BCM2835_GPIO
64 #define LCD_BPP LCD_COLOR16
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.
70 #define CONFIG_FB_ADDR 0
71 #define CONFIG_VIDEO_BCM2835
72 #define CONFIG_SYS_WHITE_ON_BLACK
74 /* SD/MMC configuration */
75 #define CONFIG_GENERIC_MMC
78 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
79 #define CONFIG_BCM2835_SDHCI
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
88 /* Console configuration */
89 #define CONFIG_SYS_CBSIZE 1024
90 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
91 sizeof(CONFIG_SYS_PROMPT) + 16)
94 #define CONFIG_ENV_SIZE SZ_16K
95 #define CONFIG_ENV_IS_NOWHERE
96 #define CONFIG_ENV_VARS_UBOOT_CONFIG
97 #define CONFIG_SYS_LOAD_ADDR 0x1000000
98 #define CONFIG_CONSOLE_MUX
99 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
101 * Memory layout for where various images get loaded by boot scripts:
103 * scriptaddr can be pretty much anywhere that doesn't conflict with something
104 * else. Put it low in memory to avoid conflicts.
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.
115 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
116 * the compressed kernel to be up to 16M too.
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.
121 #define CONFIG_EXTRA_ENV_SETTINGS \
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" \
132 "if fatload ${devtype} ${devnum}:1 " \
133 "${scriptaddr} boot.scr.uimg; then " \
134 "source ${scriptaddr}; " \
138 "setenv devtype mmc; " \
139 "if mmc dev ${devnum}; then " \
140 "run script_boot; " \
143 "bootcmd_mmc0=setenv devnum 0; run mmc_boot\0" \
145 #define CONFIG_BOOTCOMMAND \
146 "for target in ${boot_targets}; do run bootcmd_${target}; done"
148 #define CONFIG_BOOTDELAY 2
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
160 #include <config_cmd_default.h>
161 #define CONFIG_CMD_BOOTZ
162 #define CONFIG_CMD_GPIO
163 #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
170 /* 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
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