2 * (C) Copyright 2012,2015 Stephen Warren
4 * SPDX-License-Identifier: GPL-2.0
10 #include <linux/sizes.h>
12 /* Architecture, CPU, etc.*/
13 #define CONFIG_SYS_GENERIC_BOARD
14 #define CONFIG_BCM2835
15 #define CONFIG_ARCH_CPU_INIT
16 #define CONFIG_SYS_DCACHE_OFF
18 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
19 * so 2708 has historically been used rather than a dedicated 2835 ID.
21 * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation
22 * chose to use someone else's previously registered machine ID (3139, MX51_GGC)
23 * rather than obtaining a valid ID:-/
25 #ifndef CONFIG_BCM2836
26 #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
30 #define CONFIG_NR_DRAM_BANKS 1
31 #define CONFIG_SYS_SDRAM_BASE 0x00000000
32 #define CONFIG_SYS_TEXT_BASE 0x00008000
33 #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
35 * The board really has 256M. However, the VC (VideoCore co-processor) shares
36 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
37 * smaller amount of RAM is present in order to avoid stomping on the area
40 #define CONFIG_SYS_SDRAM_SIZE SZ_128M
41 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
42 CONFIG_SYS_SDRAM_SIZE - \
43 GENERATED_GBL_DATA_SIZE)
44 #define CONFIG_SYS_MALLOC_LEN SZ_4M
45 #define CONFIG_SYS_MEMTEST_START 0x00100000
46 #define CONFIG_SYS_MEMTEST_END 0x00200000
47 #define CONFIG_LOADADDR 0x00200000
50 #define CONFIG_SYS_NO_FLASH
54 #define CONFIG_BCM2835_GPIO
57 #define CONFIG_LCD_DT_SIMPLEFB
58 #define LCD_BPP LCD_COLOR16
60 * Prevent allocation of RAM for FB; the real FB address is queried
61 * dynamically from the VideoCore co-processor, and comes from RAM
62 * not owned by the ARM CPU.
64 #define CONFIG_FB_ADDR 0
65 #define CONFIG_VIDEO_BCM2835
66 #define CONFIG_SYS_WHITE_ON_BLACK
68 /* SD/MMC configuration */
69 #define CONFIG_GENERIC_MMC
72 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
73 #define CONFIG_BCM2835_SDHCI
75 #define CONFIG_CMD_USB
77 #define CONFIG_USB_DWC2
79 #define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
81 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
83 #define CONFIG_USB_STORAGE
84 #define CONFIG_USB_HOST_ETHER
85 #define CONFIG_USB_ETHER_SMSC95XX
86 #define CONFIG_MISC_INIT_R
90 #define CONFIG_PL01X_SERIAL
91 #define CONFIG_CONS_INDEX 0
92 #define CONFIG_BAUDRATE 115200
94 /* Console configuration */
95 #define CONFIG_SYS_CBSIZE 1024
96 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
97 sizeof(CONFIG_SYS_PROMPT) + 16)
100 #define CONFIG_ENV_SIZE SZ_16K
101 #define CONFIG_ENV_IS_IN_FAT
102 #define FAT_ENV_INTERFACE "mmc"
103 #define FAT_ENV_DEVICE_AND_PART "0:1"
104 #define FAT_ENV_FILE "uboot.env"
105 #define CONFIG_FAT_WRITE
106 #define CONFIG_ENV_VARS_UBOOT_CONFIG
107 #define CONFIG_SYS_LOAD_ADDR 0x1000000
108 #define CONFIG_CONSOLE_MUX
109 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
112 #define CONFIG_SYS_MAXARGS 8
113 #define CONFIG_SYS_PROMPT "U-Boot> "
114 #define CONFIG_COMMAND_HISTORY
117 #include <config_cmd_default.h>
118 #define CONFIG_CMD_GPIO
119 #define CONFIG_CMD_MMC
120 #define CONFIG_PARTITION_UUIDS
121 #define CONFIG_CMD_PART
123 /* Device tree support */
124 #define CONFIG_OF_BOARD_SETUP
125 /* ATAGs support for bootm/bootz */
126 #define CONFIG_SETUP_MEMORY_TAGS
127 #define CONFIG_CMDLINE_TAG
128 #define CONFIG_INITRD_TAG
130 #include <config_distro_defaults.h>
132 /* Some things don't make sense on this HW or yet */
133 #undef CONFIG_CMD_FPGA
136 #define ENV_DEVICE_SETTINGS \
137 "stdin=serial,lcd\0" \
138 "stdout=serial,lcd\0" \
139 "stderr=serial,lcd\0"
142 * Memory layout for where various images get loaded by boot scripts:
144 * scriptaddr can be pretty much anywhere that doesn't conflict with something
145 * else. Put it low in memory to avoid conflicts.
147 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
148 * something else. Put it low in memory to avoid conflicts.
150 * kernel_addr_r must be within the first 128M of RAM in order for the
151 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
152 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
153 * should not overlap that area, or the kernel will have to copy itself
154 * somewhere else before decompression. Similarly, the address of any other
155 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
156 * this up to 16M allows for a sizable kernel to be decompressed below the
157 * compressed load address.
159 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
160 * the compressed kernel to be up to 16M too.
162 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
163 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
165 #define ENV_MEM_LAYOUT_SETTINGS \
166 "scriptaddr=0x00000000\0" \
167 "pxefile_addr_r=0x00100000\0" \
168 "kernel_addr_r=0x01000000\0" \
169 "fdt_addr_r=0x02000000\0" \
170 "ramdisk_addr_r=0x02100000\0" \
172 #define BOOT_TARGET_DEVICES(func) \
177 #include <config_distro_bootcmd.h>
179 #define CONFIG_EXTRA_ENV_SETTINGS \
180 ENV_DEVICE_SETTINGS \
181 ENV_MEM_LAYOUT_SETTINGS \
184 #define CONFIG_BOOTDELAY 2