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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.*/
Stephen Warren46414292015-02-16 12:16:15 -070014#define CONFIG_BCM2835
15#define CONFIG_ARCH_CPU_INIT
Marek Vasute390bd52015-05-04 22:54:37 +020016
17#define CONFIG_SYS_TIMER_RATE 1000000
18#define CONFIG_SYS_TIMER_COUNTER \
19 (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo)
20
Stephen Warren46414292015-02-16 12:16:15 -070021/*
22 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
23 * so 2708 has historically been used rather than a dedicated 2835 ID.
24 *
25 * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation
26 * chose to use someone else's previously registered machine ID (3139, MX51_GGC)
27 * rather than obtaining a valid ID:-/
28 */
29#ifndef CONFIG_BCM2836
30#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708
31#endif
32
33/* Memory layout */
34#define CONFIG_NR_DRAM_BANKS 1
35#define CONFIG_SYS_SDRAM_BASE 0x00000000
36#define CONFIG_SYS_TEXT_BASE 0x00008000
37#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
38/*
39 * The board really has 256M. However, the VC (VideoCore co-processor) shares
40 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
41 * smaller amount of RAM is present in order to avoid stomping on the area
42 * the VC uses.
43 */
44#define CONFIG_SYS_SDRAM_SIZE SZ_128M
45#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
46 CONFIG_SYS_SDRAM_SIZE - \
47 GENERATED_GBL_DATA_SIZE)
48#define CONFIG_SYS_MALLOC_LEN SZ_4M
49#define CONFIG_SYS_MEMTEST_START 0x00100000
50#define CONFIG_SYS_MEMTEST_END 0x00200000
51#define CONFIG_LOADADDR 0x00200000
52
53/* Flash */
54#define CONFIG_SYS_NO_FLASH
55
56/* Devices */
57/* GPIO */
58#define CONFIG_BCM2835_GPIO
59/* LCD */
60#define CONFIG_LCD
61#define CONFIG_LCD_DT_SIMPLEFB
62#define LCD_BPP LCD_COLOR16
63/*
64 * Prevent allocation of RAM for FB; the real FB address is queried
65 * dynamically from the VideoCore co-processor, and comes from RAM
66 * not owned by the ARM CPU.
67 */
68#define CONFIG_FB_ADDR 0
69#define CONFIG_VIDEO_BCM2835
70#define CONFIG_SYS_WHITE_ON_BLACK
71
72/* SD/MMC configuration */
73#define CONFIG_GENERIC_MMC
74#define CONFIG_MMC
75#define CONFIG_SDHCI
76#define CONFIG_MMC_SDHCI_IO_ACCESSORS
77#define CONFIG_BCM2835_SDHCI
78
79#define CONFIG_CMD_USB
80#ifdef CONFIG_CMD_USB
81#define CONFIG_USB_DWC2
82#ifdef CONFIG_BCM2836
83#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
84#else
85#define CONFIG_USB_DWC2_REG_ADDR 0x20980000
86#endif
87#define CONFIG_USB_STORAGE
88#define CONFIG_USB_HOST_ETHER
89#define CONFIG_USB_ETHER_SMSC95XX
90#define CONFIG_MISC_INIT_R
91#endif
92
93/* Console UART */
94#define CONFIG_PL01X_SERIAL
95#define CONFIG_CONS_INDEX 0
96#define CONFIG_BAUDRATE 115200
97
98/* Console configuration */
99#define CONFIG_SYS_CBSIZE 1024
100#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
101 sizeof(CONFIG_SYS_PROMPT) + 16)
102
103/* Environment */
104#define CONFIG_ENV_SIZE SZ_16K
105#define CONFIG_ENV_IS_IN_FAT
106#define FAT_ENV_INTERFACE "mmc"
107#define FAT_ENV_DEVICE_AND_PART "0:1"
108#define FAT_ENV_FILE "uboot.env"
109#define CONFIG_FAT_WRITE
110#define CONFIG_ENV_VARS_UBOOT_CONFIG
111#define CONFIG_SYS_LOAD_ADDR 0x1000000
112#define CONFIG_CONSOLE_MUX
113#define CONFIG_SYS_CONSOLE_IS_IN_ENV
114
115/* Shell */
116#define CONFIG_SYS_MAXARGS 8
Stephen Warren46414292015-02-16 12:16:15 -0700117#define CONFIG_COMMAND_HISTORY
118
119/* Commands */
Stephen Warren46414292015-02-16 12:16:15 -0700120#define CONFIG_CMD_MMC
121#define CONFIG_PARTITION_UUIDS
122#define CONFIG_CMD_PART
123
124/* Device tree support */
125#define CONFIG_OF_BOARD_SETUP
126/* ATAGs support for bootm/bootz */
127#define CONFIG_SETUP_MEMORY_TAGS
128#define CONFIG_CMDLINE_TAG
129#define CONFIG_INITRD_TAG
130
131#include <config_distro_defaults.h>
132
Stephen Warren46414292015-02-16 12:16:15 -0700133/* Environment */
Guillaume GARDETbff78562015-08-25 15:10:26 +0200134#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
Stephen Warren46414292015-02-16 12:16:15 -0700135#define ENV_DEVICE_SETTINGS \
136 "stdin=serial,lcd\0" \
137 "stdout=serial,lcd\0" \
138 "stderr=serial,lcd\0"
139
140/*
141 * Memory layout for where various images get loaded by boot scripts:
142 *
143 * scriptaddr can be pretty much anywhere that doesn't conflict with something
144 * else. Put it low in memory to avoid conflicts.
145 *
146 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
147 * something else. Put it low in memory to avoid conflicts.
148 *
149 * kernel_addr_r must be within the first 128M of RAM in order for the
150 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
151 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r
152 * should not overlap that area, or the kernel will have to copy itself
153 * somewhere else before decompression. Similarly, the address of any other
154 * data passed to the kernel shouldn't overlap the start of RAM. Pushing
155 * this up to 16M allows for a sizable kernel to be decompressed below the
156 * compressed load address.
157 *
158 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
159 * the compressed kernel to be up to 16M too.
160 *
161 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
162 * for the FDT/DTB to be up to 1M, which is hopefully plenty.
163 */
164#define ENV_MEM_LAYOUT_SETTINGS \
Jonathan Liu14006a52015-08-22 20:27:17 +1000165 "fdt_addr_r=0x00000100\0" \
Stephen Warren46414292015-02-16 12:16:15 -0700166 "pxefile_addr_r=0x00100000\0" \
167 "kernel_addr_r=0x01000000\0" \
Jonathan Liu14006a52015-08-22 20:27:17 +1000168 "scriptaddr=0x02000000\0" \
Stephen Warren46414292015-02-16 12:16:15 -0700169 "ramdisk_addr_r=0x02100000\0" \
170
171#define BOOT_TARGET_DEVICES(func) \
172 func(MMC, mmc, 0) \
173 func(USB, usb, 0) \
174 func(PXE, pxe, na) \
175 func(DHCP, dhcp, na)
176#include <config_distro_bootcmd.h>
177
178#define CONFIG_EXTRA_ENV_SETTINGS \
179 ENV_DEVICE_SETTINGS \
180 ENV_MEM_LAYOUT_SETTINGS \
181 BOOTENV
182
183#define CONFIG_BOOTDELAY 2
184
185#endif