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 <linux/sizes.h>
22 /* Architecture, CPU, etc.*/
23 #define CONFIG_SYS_GENERIC_BOARD
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
33 /* Enable driver model */
36 #define CONFIG_DM_GPIO
37 #define CONFIG_DM_SERIAL
40 #define CONFIG_NR_DRAM_BANKS 1
41 #define CONFIG_SYS_SDRAM_BASE 0x00000000
42 #define CONFIG_SYS_TEXT_BASE 0x00008000
43 #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
45 * The board really has 256M. However, the VC (VideoCore co-processor) shares
46 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
47 * smaller amount of RAM is present in order to avoid stomping on the area
50 #define CONFIG_SYS_SDRAM_SIZE SZ_128M
51 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
52 CONFIG_SYS_SDRAM_SIZE - \
53 GENERATED_GBL_DATA_SIZE)
54 #define CONFIG_SYS_MALLOC_LEN SZ_4M
55 #define CONFIG_SYS_MALLOC_F_LEN (1 << 10)
56 #define CONFIG_SYS_MEMTEST_START 0x00100000
57 #define CONFIG_SYS_MEMTEST_END 0x00200000
58 #define CONFIG_LOADADDR 0x00200000
61 #define CONFIG_SYS_NO_FLASH
65 #define CONFIG_BCM2835_GPIO
68 #define CONFIG_LCD_DT_SIMPLEFB
69 #define LCD_BPP LCD_COLOR16
71 * Prevent allocation of RAM for FB; the real FB address is queried
72 * dynamically from the VideoCore co-processor, and comes from RAM
73 * not owned by the ARM CPU.
75 #define CONFIG_FB_ADDR 0
76 #define CONFIG_VIDEO_BCM2835
77 #define CONFIG_SYS_WHITE_ON_BLACK
79 /* SD/MMC configuration */
80 #define CONFIG_GENERIC_MMC
83 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
84 #define CONFIG_BCM2835_SDHCI
86 #define CONFIG_CMD_USB
88 #define CONFIG_USB_DWC2
89 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
90 #define CONFIG_USB_STORAGE
91 #define CONFIG_USB_HOST_ETHER
92 #define CONFIG_USB_ETHER_SMSC95XX
93 #define CONFIG_MISC_INIT_R
97 #define CONFIG_PL01X_SERIAL
98 #define CONFIG_CONS_INDEX 0
99 #define CONFIG_BAUDRATE 115200
101 /* Console configuration */
102 #define CONFIG_SYS_CBSIZE 1024
103 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
104 sizeof(CONFIG_SYS_PROMPT) + 16)
107 #define CONFIG_ENV_SIZE SZ_16K
108 #define CONFIG_ENV_IS_IN_FAT
109 #define FAT_ENV_INTERFACE "mmc"
110 #define FAT_ENV_DEVICE_AND_PART "0:1"
111 #define FAT_ENV_FILE "uboot.env"
112 #define CONFIG_FAT_WRITE
113 #define CONFIG_ENV_VARS_UBOOT_CONFIG
114 #define CONFIG_SYS_LOAD_ADDR 0x1000000
115 #define CONFIG_CONSOLE_MUX
116 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
119 #define CONFIG_SYS_MAXARGS 8
120 #define CONFIG_SYS_PROMPT "U-Boot> "
121 #define CONFIG_COMMAND_HISTORY
124 #include <config_cmd_default.h>
125 #define CONFIG_CMD_GPIO
126 #define CONFIG_CMD_MMC
127 #define CONFIG_PARTITION_UUIDS
128 #define CONFIG_CMD_PART
130 /* Device tree support */
131 #define CONFIG_OF_BOARD_SETUP
132 /* ATAGs support for bootm/bootz */
133 #define CONFIG_SETUP_MEMORY_TAGS
134 #define CONFIG_CMDLINE_TAG
135 #define CONFIG_INITRD_TAG
137 #include <config_distro_defaults.h>
139 /* Some things don't make sense on this HW or yet */
140 #undef CONFIG_CMD_FPGA
143 #define ENV_DEVICE_SETTINGS \
144 "stdin=serial,lcd\0" \
145 "stdout=serial,lcd\0" \
146 "stderr=serial,lcd\0"
149 * Memory layout for where various images get loaded by boot scripts:
151 * scriptaddr can be pretty much anywhere that doesn't conflict with something
152 * else. Put it low in memory to avoid conflicts.
154 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
155 * something else. Put it low in memory to avoid conflicts.
157 * kernel_addr_r must be within the first 128M of RAM in order for the
158 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
159 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
160 * should not overlap that area, or the kernel will have to copy itself
161 * somewhere else before decompression. Similarly, the address of any other
162 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
163 * this up to 16M allows for a sizable kernel to be decompressed below the
164 * compressed load address.
166 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
167 * the compressed kernel to be up to 16M too.
169 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
170 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
172 #define ENV_MEM_LAYOUT_SETTINGS \
173 "scriptaddr=0x00000000\0" \
174 "pxefile_addr_r=0x00100000\0" \
175 "kernel_addr_r=0x01000000\0" \
176 "fdt_addr_r=0x02000000\0" \
177 "ramdisk_addr_r=0x02100000\0" \
179 #define BOOT_TARGET_DEVICES(func) \
184 #include <config_distro_bootcmd.h>
186 #define CONFIG_EXTRA_ENV_SETTINGS \
187 ENV_DEVICE_SETTINGS \
188 ENV_MEM_LAYOUT_SETTINGS \
191 #define CONFIG_BOOTDELAY 2