blob: 58fe1f7a43591d8585c41becbe4ea4e3592e05a4 [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>
Marek Vasute390bd52015-05-04 22:54:37 +020011#include <asm/arch/timer.h>
Stephen Warren46414292015-02-16 12:16:15 -070012
13/* Architecture, CPU, etc.*/
14#define CONFIG_SYS_GENERIC_BOARD
15#define CONFIG_BCM2835
16#define CONFIG_ARCH_CPU_INIT
Marek Vasute390bd52015-05-04 22:54:37 +020017
18#define CONFIG_SYS_TIMER_RATE 1000000
19#define CONFIG_SYS_TIMER_COUNTER \
20 (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo)
21
Stephen Warren46414292015-02-16 12:16:15 -070022/*
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.
25 *
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:-/
29 */
30#ifndef CONFIG_BCM2836
31#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
32#endif
33
34/* Memory layout */
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
39/*
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
43 * the VC uses.
44 */
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
53
54/* Flash */
55#define CONFIG_SYS_NO_FLASH
56
57/* Devices */
58/* GPIO */
59#define CONFIG_BCM2835_GPIO
60/* LCD */
61#define CONFIG_LCD
62#define CONFIG_LCD_DT_SIMPLEFB
63#define LCD_BPP LCD_COLOR16
64/*
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.
68 */
69#define CONFIG_FB_ADDR 0
70#define CONFIG_VIDEO_BCM2835
71#define CONFIG_SYS_WHITE_ON_BLACK
72
73/* SD/MMC configuration */
74#define CONFIG_GENERIC_MMC
75#define CONFIG_MMC
76#define CONFIG_SDHCI
77#define CONFIG_MMC_SDHCI_IO_ACCESSORS
78#define CONFIG_BCM2835_SDHCI
79
80#define CONFIG_CMD_USB
81#ifdef CONFIG_CMD_USB
82#define CONFIG_USB_DWC2
83#ifdef CONFIG_BCM2836
84#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
85#else
86#define CONFIG_USB_DWC2_REG_ADDR 0x20980000
87#endif
88#define CONFIG_USB_STORAGE
89#define CONFIG_USB_HOST_ETHER
90#define CONFIG_USB_ETHER_SMSC95XX
91#define CONFIG_MISC_INIT_R
92#endif
93
94/* Console UART */
95#define CONFIG_PL01X_SERIAL
96#define CONFIG_CONS_INDEX 0
97#define CONFIG_BAUDRATE 115200
98
99/* Console configuration */
100#define CONFIG_SYS_CBSIZE 1024
101#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
102 sizeof(CONFIG_SYS_PROMPT) + 16)
103
104/* Environment */
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
115
116/* Shell */
117#define CONFIG_SYS_MAXARGS 8
Stephen Warren46414292015-02-16 12:16:15 -0700118#define CONFIG_COMMAND_HISTORY
119
120/* Commands */
Stephen Warren46414292015-02-16 12:16:15 -0700121#define CONFIG_CMD_GPIO
122#define CONFIG_CMD_MMC
123#define CONFIG_PARTITION_UUIDS
124#define CONFIG_CMD_PART
125
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
132
133#include <config_distro_defaults.h>
134
Stephen Warren46414292015-02-16 12:16:15 -0700135/* Environment */
Guillaume GARDETbff78562015-08-25 15:10:26 +0200136#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
Stephen Warren46414292015-02-16 12:16:15 -0700137#define ENV_DEVICE_SETTINGS \
138 "stdin=serial,lcd\0" \
139 "stdout=serial,lcd\0" \
140 "stderr=serial,lcd\0"
141
142/*
143 * Memory layout for where various images get loaded by boot scripts:
144 *
145 * scriptaddr can be pretty much anywhere that doesn't conflict with something
146 * else. Put it low in memory to avoid conflicts.
147 *
148 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
149 * something else. Put it low in memory to avoid conflicts.
150 *
151 * kernel_addr_r must be within the first 128M of RAM in order for the
152 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
153 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
154 * should not overlap that area, or the kernel will have to copy itself
155 * somewhere else before decompression. Similarly, the address of any other
156 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
157 * this up to 16M allows for a sizable kernel to be decompressed below the
158 * compressed load address.
159 *
160 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
161 * the compressed kernel to be up to 16M too.
162 *
163 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
164 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
165 */
166#define ENV_MEM_LAYOUT_SETTINGS \
Jonathan Liu14006a52015-08-22 20:27:17 +1000167 "fdt_addr_r=0x00000100\0" \
Stephen Warren46414292015-02-16 12:16:15 -0700168 "pxefile_addr_r=0x00100000\0" \
169 "kernel_addr_r=0x01000000\0" \
Jonathan Liu14006a52015-08-22 20:27:17 +1000170 "scriptaddr=0x02000000\0" \
Stephen Warren46414292015-02-16 12:16:15 -0700171 "ramdisk_addr_r=0x02100000\0" \
172
173#define BOOT_TARGET_DEVICES(func) \
174 func(MMC, mmc, 0) \
175 func(USB, usb, 0) \
176 func(PXE, pxe, na) \
177 func(DHCP, dhcp, na)
178#include <config_distro_bootcmd.h>
179
180#define CONFIG_EXTRA_ENV_SETTINGS \
181 ENV_DEVICE_SETTINGS \
182 ENV_MEM_LAYOUT_SETTINGS \
183 BOOTENV
184
185#define CONFIG_BOOTDELAY 2
186
187#endif