blob: 3121ac9874af0e864f0bdd339b1a0c710df2bac2 [file] [log] [blame]
Stephen Warren46414292015-02-16 12:16:15 -07001/*
2 * (C) Copyright 2012,2015 Stephen Warren
3 *
4 * SPDX-License-Identifier: GPL-2.0
5 */
6
7#ifndef _RPI_COMMON_H_
8#define _RPI_COMMON_H_
9
10#include <linux/sizes.h>
11
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
17/*
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.
20 *
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:-/
24 */
25#ifndef CONFIG_BCM2836
26#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
27#endif
28
29/* Memory layout */
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
34/*
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
38 * the VC uses.
39 */
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
48
49/* Flash */
50#define CONFIG_SYS_NO_FLASH
51
52/* Devices */
53/* GPIO */
54#define CONFIG_BCM2835_GPIO
55/* LCD */
56#define CONFIG_LCD
57#define CONFIG_LCD_DT_SIMPLEFB
58#define LCD_BPP LCD_COLOR16
59/*
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.
63 */
64#define CONFIG_FB_ADDR 0
65#define CONFIG_VIDEO_BCM2835
66#define CONFIG_SYS_WHITE_ON_BLACK
67
68/* SD/MMC configuration */
69#define CONFIG_GENERIC_MMC
70#define CONFIG_MMC
71#define CONFIG_SDHCI
72#define CONFIG_MMC_SDHCI_IO_ACCESSORS
73#define CONFIG_BCM2835_SDHCI
74
75#define CONFIG_CMD_USB
76#ifdef CONFIG_CMD_USB
77#define CONFIG_USB_DWC2
78#ifdef CONFIG_BCM2836
79#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
80#else
81#define CONFIG_USB_DWC2_REG_ADDR 0x20980000
82#endif
83#define CONFIG_USB_STORAGE
84#define CONFIG_USB_HOST_ETHER
85#define CONFIG_USB_ETHER_SMSC95XX
86#define CONFIG_MISC_INIT_R
87#endif
88
89/* Console UART */
90#define CONFIG_PL01X_SERIAL
91#define CONFIG_CONS_INDEX 0
92#define CONFIG_BAUDRATE 115200
93
94/* Console configuration */
95#define CONFIG_SYS_CBSIZE 1024
96#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
97 sizeof(CONFIG_SYS_PROMPT) + 16)
98
99/* Environment */
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
110
111/* Shell */
112#define CONFIG_SYS_MAXARGS 8
113#define CONFIG_SYS_PROMPT "U-Boot> "
114#define CONFIG_COMMAND_HISTORY
115
116/* Commands */
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
122
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
129
130#include <config_distro_defaults.h>
131
132/* Some things don't make sense on this HW or yet */
133#undef CONFIG_CMD_FPGA
134
135/* Environment */
136#define ENV_DEVICE_SETTINGS \
137 "stdin=serial,lcd\0" \
138 "stdout=serial,lcd\0" \
139 "stderr=serial,lcd\0"
140
141/*
142 * Memory layout for where various images get loaded by boot scripts:
143 *
144 * scriptaddr can be pretty much anywhere that doesn't conflict with something
145 * else. Put it low in memory to avoid conflicts.
146 *
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.
149 *
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.
158 *
159 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
160 * the compressed kernel to be up to 16M too.
161 *
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.
164 */
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" \
171
172#define BOOT_TARGET_DEVICES(func) \
173 func(MMC, mmc, 0) \
174 func(USB, usb, 0) \
175 func(PXE, pxe, na) \
176 func(DHCP, dhcp, na)
177#include <config_distro_bootcmd.h>
178
179#define CONFIG_EXTRA_ENV_SETTINGS \
180 ENV_DEVICE_SETTINGS \
181 ENV_MEM_LAYOUT_SETTINGS \
182 BOOTENV
183
184#define CONFIG_BOOTDELAY 2
185
186#endif