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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
Stephen Warren0d04f342012-08-05 16:07:22 +000033/* 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
Stephen Warren131a1e62013-01-29 16:37:42 +000051#define CONFIG_LOADADDR 0x00200000
Stephen Warren0d04f342012-08-05 16:07:22 +000052
53/* Flash */
54#define CONFIG_SYS_NO_FLASH
55
56/* Devices */
57/* GPIO */
58#define CONFIG_BCM2835_GPIO
Stephen Warren6be3c9f2013-01-29 16:37:40 +000059/* LCD */
60#define CONFIG_LCD
Stephen Warrenea697ae2013-05-27 18:31:18 +000061#define CONFIG_LCD_DT_SIMPLEFB
Stephen Warren6be3c9f2013-01-29 16:37:40 +000062#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
Stephen Warren0d04f342012-08-05 16:07:22 +000071
Stephen Warren131a1e62013-01-29 16:37:42 +000072/* 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
Stephen Warren0d04f342012-08-05 16:07:22 +000079/* 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
Stephen Warren131a1e62013-01-29 16:37:42 +000094#define CONFIG_ENV_VARS_UBOOT_CONFIG
Stephen Warren0d04f342012-08-05 16:07:22 +000095#define CONFIG_SYS_LOAD_ADDR 0x1000000
Stephen Warren6be3c9f2013-01-29 16:37:40 +000096#define CONFIG_CONSOLE_MUX
97#define CONFIG_SYS_CONSOLE_IS_IN_ENV
Stephen Warren131a1e62013-01-29 16:37:42 +000098/*
99 * Memory layout for where various images get loaded by boot scripts:
100 *
101 * scriptaddr can be pretty much anywhere that doesn't conflict with something
102 * else. Put it low in memory to avoid conflicts.
103 *
104 * kernel_addr_r must be within the first 128M of RAM in order for the
105 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
106 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
107 * should not overlap that area, or the kernel will have to copy itself
108 * somewhere else before decompression. Similarly, the address of any other
109 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
110 * this up to 16M allows for a sizable kernel to be decompressed below the
111 * compressed load address.
112 *
113 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
114 * the compressed kernel to be up to 16M too.
115 *
116 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
117 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
118 */
119#define CONFIG_EXTRA_ENV_SETTINGS \
120 "stdin=serial\0" \
121 "stderr=serial,lcd\0" \
122 "stdout=serial,lcd\0" \
123 "scriptaddr=0x00000000\0" \
124 "kernel_addr_r=0x01000000\0" \
125 "fdt_addr_r=0x02000000\0" \
126 "ramdisk_addr_r=0x02100000\0" \
127 "boot_targets=mmc0\0" \
128 \
129 "script_boot=" \
130 "if fatload ${devtype} ${devnum}:1 " \
131 "${scriptaddr} boot.scr.uimg; then " \
132 "source ${scriptaddr}; " \
133 "fi;\0" \
134 \
135 "mmc_boot=" \
136 "setenv devtype mmc; " \
137 "if mmc dev ${devnum}; then " \
138 "run script_boot; " \
139 "fi\0" \
140 \
141 "bootcmd_mmc0=setenv devnum 0; run mmc_boot\0" \
142
143#define CONFIG_BOOTCOMMAND \
144 "for target in ${boot_targets}; do run bootcmd_${target}; done"
145
146#define CONFIG_BOOTDELAY 2
Stephen Warren0d04f342012-08-05 16:07:22 +0000147
148/* Shell */
149#define CONFIG_SYS_HUSH_PARSER
150#define CONFIG_SYS_MAXARGS 8
151#define CONFIG_SYS_PROMPT "U-Boot> "
152#define CONFIG_SYS_LONGHELP
153#define CONFIG_CMDLINE_EDITING
154#define CONFIG_COMMAND_HISTORY
155#define CONFIG_AUTO_COMPLETE
156
157/* Commands */
158#include <config_cmd_default.h>
159#define CONFIG_CMD_BOOTZ
160#define CONFIG_CMD_GPIO
Stephen Warren131a1e62013-01-29 16:37:42 +0000161#define CONFIG_CMD_MMC
162#define CONFIG_DOS_PARTITION
163#define CONFIG_PARTITION_UUIDS
164#define CONFIG_CMD_PART
165#define CONFIG_CMD_FS_GENERIC
166#define CONFIG_CMD_FAT
167#define CONFIG_CMD_EXT
Stephen Warren0d04f342012-08-05 16:07:22 +0000168/* Some things don't make sense on this HW or yet */
169#undef CONFIG_CMD_FPGA
170#undef CONFIG_CMD_NET
171#undef CONFIG_CMD_NFS
172#undef CONFIG_CMD_SAVEENV
173
174/* Device tree support for bootm/bootz */
175#define CONFIG_OF_LIBFDT
Stephen Warrenea697ae2013-05-27 18:31:18 +0000176#define CONFIG_OF_BOARD_SETUP
Stephen Warren0d04f342012-08-05 16:07:22 +0000177/* ATAGs support for bootm/bootz */
178#define CONFIG_SETUP_MEMORY_TAGS
179#define CONFIG_CMDLINE_TAG
180#define CONFIG_INITRD_TAG
181
182#endif