include/configs/rpi.h

   1 /*
   2  * (C) Copyright 2012 Stephen Warren
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * version 2 as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #ifndef __CONFIG_H
  18 #define __CONFIG_H
  19
  20 #include <linux/sizes.h>
  21
  22 /* Architecture, CPU, etc.*/
  23 #define CONFIG_SYS_GENERIC_BOARD
  24 #define CONFIG_BCM2835
  25 #define CONFIG_ARCH_CPU_INIT
  26 #define CONFIG_SYS_DCACHE_OFF
  27 /*
  28  * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
  29  * so 2708 has historically been used rather than a dedicated 2835 ID.
  30  */
  31 #define CONFIG_MACH_TYPE                MACH_TYPE_BCM2708
  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 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
  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