include/configs/rpi-common.h

   1 /*
   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