2 * (C) Copyright 2012,2015 Stephen Warren
4 * SPDX-License-Identifier: GPL-2.0
10 #include <linux/sizes.h>
11 #include <asm/arch/timer.h>
13 /* Architecture, CPU, etc.*/
14 #define CONFIG_SYS_GENERIC_BOARD
15 #define CONFIG_BCM2835
16 #define CONFIG_ARCH_CPU_INIT
18 #define CONFIG_SYS_TIMER_RATE 1000000
19 #define CONFIG_SYS_TIMER_COUNTER \
20 (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo)
23 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
24 * so 2708 has historically been used rather than a dedicated 2835 ID.
26 * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation
27 * chose to use someone else's previously registered machine ID (3139, MX51_GGC)
28 * rather than obtaining a valid ID:-/
30 #ifndef CONFIG_BCM2836
31 #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
35 #define CONFIG_NR_DRAM_BANKS 1
36 #define CONFIG_SYS_SDRAM_BASE 0x00000000
37 #define CONFIG_SYS_TEXT_BASE 0x00008000
38 #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
40 * The board really has 256M. However, the VC (VideoCore co-processor) shares
41 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
42 * smaller amount of RAM is present in order to avoid stomping on the area
45 #define CONFIG_SYS_SDRAM_SIZE SZ_128M
46 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
47 CONFIG_SYS_SDRAM_SIZE - \
48 GENERATED_GBL_DATA_SIZE)
49 #define CONFIG_SYS_MALLOC_LEN SZ_4M
50 #define CONFIG_SYS_MEMTEST_START 0x00100000
51 #define CONFIG_SYS_MEMTEST_END 0x00200000
52 #define CONFIG_LOADADDR 0x00200000
55 #define CONFIG_SYS_NO_FLASH
59 #define CONFIG_BCM2835_GPIO
62 #define CONFIG_LCD_DT_SIMPLEFB
63 #define LCD_BPP LCD_COLOR16
65 * Prevent allocation of RAM for FB; the real FB address is queried
66 * dynamically from the VideoCore co-processor, and comes from RAM
67 * not owned by the ARM CPU.
69 #define CONFIG_FB_ADDR 0
70 #define CONFIG_VIDEO_BCM2835
71 #define CONFIG_SYS_WHITE_ON_BLACK
73 /* SD/MMC configuration */
74 #define CONFIG_GENERIC_MMC
77 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
78 #define CONFIG_BCM2835_SDHCI
80 #define CONFIG_CMD_USB
82 #define CONFIG_USB_DWC2
84 #define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
86 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
88 #define CONFIG_USB_STORAGE
89 #define CONFIG_USB_HOST_ETHER
90 #define CONFIG_USB_ETHER_SMSC95XX
91 #define CONFIG_MISC_INIT_R
95 #define CONFIG_PL01X_SERIAL
96 #define CONFIG_CONS_INDEX 0
97 #define CONFIG_BAUDRATE 115200
99 /* Console configuration */
100 #define CONFIG_SYS_CBSIZE 1024
101 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
102 sizeof(CONFIG_SYS_PROMPT) + 16)
105 #define CONFIG_ENV_SIZE SZ_16K
106 #define CONFIG_ENV_IS_IN_FAT
107 #define FAT_ENV_INTERFACE "mmc"
108 #define FAT_ENV_DEVICE_AND_PART "0:1"
109 #define FAT_ENV_FILE "uboot.env"
110 #define CONFIG_FAT_WRITE
111 #define CONFIG_ENV_VARS_UBOOT_CONFIG
112 #define CONFIG_SYS_LOAD_ADDR 0x1000000
113 #define CONFIG_CONSOLE_MUX
114 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
117 #define CONFIG_SYS_MAXARGS 8
118 #define CONFIG_COMMAND_HISTORY
121 #define CONFIG_CMD_GPIO
122 #define CONFIG_CMD_MMC
123 #define CONFIG_PARTITION_UUIDS
124 #define CONFIG_CMD_PART
126 /* Device tree support */
127 #define CONFIG_OF_BOARD_SETUP
128 /* ATAGs support for bootm/bootz */
129 #define CONFIG_SETUP_MEMORY_TAGS
130 #define CONFIG_CMDLINE_TAG
131 #define CONFIG_INITRD_TAG
133 #include <config_distro_defaults.h>
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 "fdt_addr_r=0x00000100\0" \
167 "pxefile_addr_r=0x00100000\0" \
168 "kernel_addr_r=0x01000000\0" \
169 "scriptaddr=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