blob: 1012cdd292a66857c42033b7ce6713329c1e6f3e [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
17#define CONFIG_SYS_DCACHE_OFF
Marek Vasute390bd52015-05-04 22:54:37 +020018
19#define CONFIG_SYS_TIMER_RATE 1000000
20#define CONFIG_SYS_TIMER_COUNTER \
21 (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo)
22
Stephen Warren46414292015-02-16 12:16:15 -070023/*
24 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
25 * so 2708 has historically been used rather than a dedicated 2835 ID.
26 *
27 * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation
28 * chose to use someone else's previously registered machine ID (3139, MX51_GGC)
29 * rather than obtaining a valid ID:-/
30 */
31#ifndef CONFIG_BCM2836
32#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
33#endif
34
35/* Memory layout */
36#define CONFIG_NR_DRAM_BANKS 1
37#define CONFIG_SYS_SDRAM_BASE 0x00000000
38#define CONFIG_SYS_TEXT_BASE 0x00008000
39#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
40/*
41 * The board really has 256M. However, the VC (VideoCore co-processor) shares
42 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
43 * smaller amount of RAM is present in order to avoid stomping on the area
44 * the VC uses.
45 */
46#define CONFIG_SYS_SDRAM_SIZE SZ_128M
47#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
48 CONFIG_SYS_SDRAM_SIZE - \
49 GENERATED_GBL_DATA_SIZE)
50#define CONFIG_SYS_MALLOC_LEN SZ_4M
51#define CONFIG_SYS_MEMTEST_START 0x00100000
52#define CONFIG_SYS_MEMTEST_END 0x00200000
53#define CONFIG_LOADADDR 0x00200000
54
55/* Flash */
56#define CONFIG_SYS_NO_FLASH
57
58/* Devices */
59/* GPIO */
60#define CONFIG_BCM2835_GPIO
61/* LCD */
62#define CONFIG_LCD
63#define CONFIG_LCD_DT_SIMPLEFB
64#define LCD_BPP LCD_COLOR16
65/*
66 * Prevent allocation of RAM for FB; the real FB address is queried
67 * dynamically from the VideoCore co-processor, and comes from RAM
68 * not owned by the ARM CPU.
69 */
70#define CONFIG_FB_ADDR 0
71#define CONFIG_VIDEO_BCM2835
72#define CONFIG_SYS_WHITE_ON_BLACK
73
74/* SD/MMC configuration */
75#define CONFIG_GENERIC_MMC
76#define CONFIG_MMC
77#define CONFIG_SDHCI
78#define CONFIG_MMC_SDHCI_IO_ACCESSORS
79#define CONFIG_BCM2835_SDHCI
80
81#define CONFIG_CMD_USB
82#ifdef CONFIG_CMD_USB
83#define CONFIG_USB_DWC2
84#ifdef CONFIG_BCM2836
85#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
86#else
87#define CONFIG_USB_DWC2_REG_ADDR 0x20980000
88#endif
89#define CONFIG_USB_STORAGE
90#define CONFIG_USB_HOST_ETHER
91#define CONFIG_USB_ETHER_SMSC95XX
92#define CONFIG_MISC_INIT_R
93#endif
94
95/* Console UART */
96#define CONFIG_PL01X_SERIAL
97#define CONFIG_CONS_INDEX 0
98#define CONFIG_BAUDRATE 115200
99
100/* Console configuration */
101#define CONFIG_SYS_CBSIZE 1024
102#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
103 sizeof(CONFIG_SYS_PROMPT) + 16)
104
105/* Environment */
106#define CONFIG_ENV_SIZE SZ_16K
107#define CONFIG_ENV_IS_IN_FAT
108#define FAT_ENV_INTERFACE "mmc"
109#define FAT_ENV_DEVICE_AND_PART "0:1"
110#define FAT_ENV_FILE "uboot.env"
111#define CONFIG_FAT_WRITE
112#define CONFIG_ENV_VARS_UBOOT_CONFIG
113#define CONFIG_SYS_LOAD_ADDR 0x1000000
114#define CONFIG_CONSOLE_MUX
115#define CONFIG_SYS_CONSOLE_IS_IN_ENV
116
117/* Shell */
118#define CONFIG_SYS_MAXARGS 8
119#define CONFIG_SYS_PROMPT "U-Boot> "
120#define CONFIG_COMMAND_HISTORY
121
122/* Commands */
Stephen Warren46414292015-02-16 12:16:15 -0700123#define CONFIG_CMD_GPIO
124#define CONFIG_CMD_MMC
125#define CONFIG_PARTITION_UUIDS
126#define CONFIG_CMD_PART
127
128/* Device tree support */
129#define CONFIG_OF_BOARD_SETUP
130/* ATAGs support for bootm/bootz */
131#define CONFIG_SETUP_MEMORY_TAGS
132#define CONFIG_CMDLINE_TAG
133#define CONFIG_INITRD_TAG
134
135#include <config_distro_defaults.h>
136
Stephen Warren46414292015-02-16 12:16:15 -0700137/* Environment */
138#define ENV_DEVICE_SETTINGS \
139 "stdin=serial,lcd\0" \
140 "stdout=serial,lcd\0" \
141 "stderr=serial,lcd\0"
142
143/*
144 * Memory layout for where various images get loaded by boot scripts:
145 *
146 * scriptaddr can be pretty much anywhere that doesn't conflict with something
147 * else. Put it low in memory to avoid conflicts.
148 *
149 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
150 * something else. Put it low in memory to avoid conflicts.
151 *
152 * kernel_addr_r must be within the first 128M of RAM in order for the
153 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
154 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
155 * should not overlap that area, or the kernel will have to copy itself
156 * somewhere else before decompression. Similarly, the address of any other
157 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
158 * this up to 16M allows for a sizable kernel to be decompressed below the
159 * compressed load address.
160 *
161 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
162 * the compressed kernel to be up to 16M too.
163 *
164 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
165 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
166 */
167#define ENV_MEM_LAYOUT_SETTINGS \
168 "scriptaddr=0x00000000\0" \
169 "pxefile_addr_r=0x00100000\0" \
170 "kernel_addr_r=0x01000000\0" \
171 "fdt_addr_r=0x02000000\0" \
172 "ramdisk_addr_r=0x02100000\0" \
173
174#define BOOT_TARGET_DEVICES(func) \
175 func(MMC, mmc, 0) \
176 func(USB, usb, 0) \
177 func(PXE, pxe, na) \
178 func(DHCP, dhcp, na)
179#include <config_distro_bootcmd.h>
180
181#define CONFIG_EXTRA_ENV_SETTINGS \
182 ENV_DEVICE_SETTINGS \
183 ENV_MEM_LAYOUT_SETTINGS \
184 BOOTENV
185
186#define CONFIG_BOOTDELAY 2
187
188#endif