2 * (C) Copyright 2012 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 #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
24 #define CONFIG_NR_DRAM_BANKS 1
25 #define CONFIG_SYS_SDRAM_BASE 0x00000000
26 #define CONFIG_SYS_TEXT_BASE 0x00008000
27 #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
29 * The board really has 256M. However, the VC (VideoCore co-processor) shares
30 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
31 * smaller amount of RAM is present in order to avoid stomping on the area
34 #define CONFIG_SYS_SDRAM_SIZE SZ_128M
35 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
36 CONFIG_SYS_SDRAM_SIZE - \
37 GENERATED_GBL_DATA_SIZE)
38 #define CONFIG_SYS_MALLOC_LEN SZ_4M
39 #define CONFIG_SYS_MEMTEST_START 0x00100000
40 #define CONFIG_SYS_MEMTEST_END 0x00200000
41 #define CONFIG_LOADADDR 0x00200000
44 #define CONFIG_SYS_NO_FLASH
48 #define CONFIG_BCM2835_GPIO
51 #define CONFIG_LCD_DT_SIMPLEFB
52 #define LCD_BPP LCD_COLOR16
54 * Prevent allocation of RAM for FB; the real FB address is queried
55 * dynamically from the VideoCore co-processor, and comes from RAM
56 * not owned by the ARM CPU.
58 #define CONFIG_FB_ADDR 0
59 #define CONFIG_VIDEO_BCM2835
60 #define CONFIG_SYS_WHITE_ON_BLACK
62 /* SD/MMC configuration */
63 #define CONFIG_GENERIC_MMC
66 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
67 #define CONFIG_BCM2835_SDHCI
69 #define CONFIG_CMD_USB
71 #define CONFIG_USB_DWC2
72 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
73 #define CONFIG_USB_STORAGE
74 #define CONFIG_USB_HOST_ETHER
75 #define CONFIG_USB_ETHER_SMSC95XX
76 #define CONFIG_MISC_INIT_R
80 #define CONFIG_PL01X_SERIAL
81 #define CONFIG_CONS_INDEX 0
82 #define CONFIG_BAUDRATE 115200
84 /* Console configuration */
85 #define CONFIG_SYS_CBSIZE 1024
86 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
87 sizeof(CONFIG_SYS_PROMPT) + 16)
90 #define CONFIG_ENV_SIZE SZ_16K
91 #define CONFIG_ENV_IS_IN_FAT
92 #define FAT_ENV_INTERFACE "mmc"
93 #define FAT_ENV_DEVICE_AND_PART "0:1"
94 #define FAT_ENV_FILE "uboot.env"
95 #define CONFIG_FAT_WRITE
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
102 #define CONFIG_SYS_MAXARGS 8
103 #define CONFIG_SYS_PROMPT "U-Boot> "
104 #define CONFIG_COMMAND_HISTORY
107 #include <config_cmd_default.h>
108 #define CONFIG_CMD_GPIO
109 #define CONFIG_CMD_MMC
110 #define CONFIG_PARTITION_UUIDS
111 #define CONFIG_CMD_PART
113 /* Device tree support */
114 #define CONFIG_OF_BOARD_SETUP
115 /* ATAGs support for bootm/bootz */
116 #define CONFIG_SETUP_MEMORY_TAGS
117 #define CONFIG_CMDLINE_TAG
118 #define CONFIG_INITRD_TAG
120 #include <config_distro_defaults.h>
122 /* Some things don't make sense on this HW or yet */
123 #undef CONFIG_CMD_FPGA
126 #define ENV_DEVICE_SETTINGS \
127 "stdin=serial,lcd\0" \
128 "stdout=serial,lcd\0" \
129 "stderr=serial,lcd\0"
132 * Memory layout for where various images get loaded by boot scripts:
134 * scriptaddr can be pretty much anywhere that doesn't conflict with something
135 * else. Put it low in memory to avoid conflicts.
137 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
138 * something else. Put it low in memory to avoid conflicts.
140 * kernel_addr_r must be within the first 128M of RAM in order for the
141 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
142 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
143 * should not overlap that area, or the kernel will have to copy itself
144 * somewhere else before decompression. Similarly, the address of any other
145 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
146 * this up to 16M allows for a sizable kernel to be decompressed below the
147 * compressed load address.
149 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
150 * the compressed kernel to be up to 16M too.
152 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
153 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
155 #define ENV_MEM_LAYOUT_SETTINGS \
156 "scriptaddr=0x00000000\0" \
157 "pxefile_addr_r=0x00100000\0" \
158 "kernel_addr_r=0x01000000\0" \
159 "fdt_addr_r=0x02000000\0" \
160 "ramdisk_addr_r=0x02100000\0" \
162 #define BOOT_TARGET_DEVICES(func) \
167 #include <config_distro_bootcmd.h>
169 #define CONFIG_EXTRA_ENV_SETTINGS \
170 ENV_DEVICE_SETTINGS \
171 ENV_MEM_LAYOUT_SETTINGS \
174 #define CONFIG_BOOTDELAY 2