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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 | ||
20 | #include <asm/sizes.h> | |
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 | ||
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 | |
131a1e60 | 54 | #define CONFIG_LOADADDR 0x00200000 |
0d04f34a SW |
55 | |
56 | /* Flash */ | |
57 | #define CONFIG_SYS_NO_FLASH | |
58 | ||
59 | /* Devices */ | |
60 | /* GPIO */ | |
61 | #define CONFIG_BCM2835_GPIO | |
6be3c9fc SW |
62 | /* 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 | |
0d04f34a | 73 | |
131a1e60 SW |
74 | /* 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 | ||
0d04f34a SW |
81 | /* 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 | |
131a1e60 | 96 | #define CONFIG_ENV_VARS_UBOOT_CONFIG |
0d04f34a | 97 | #define CONFIG_SYS_LOAD_ADDR 0x1000000 |
6be3c9fc SW |
98 | #define CONFIG_CONSOLE_MUX |
99 | #define CONFIG_SYS_CONSOLE_IS_IN_ENV | |
131a1e60 SW |
100 | /* |
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 | |
0d04f34a SW |
149 | |
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 | |
131a1e60 SW |
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 | |
0d04f34a SW |
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 | |
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 |