include/configs/rpi_b.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 <asm/sizes.h>
  21
  22 /* Architecture, CPU, etc.*/
  23 #define CONFIG_ARM1176
  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 /* Timer */
  34 #define CONFIG_SYS_HZ                   1000
  35
  36 /* Memory layout */
  37 #define CONFIG_NR_DRAM_BANKS            1
  38 #define CONFIG_SYS_SDRAM_BASE           0x00000000
  39 #define CONFIG_SYS_TEXT_BASE            0x00008000
  40 #define CONFIG_SYS_UBOOT_BASE           CONFIG_SYS_TEXT_BASE
  41 /*
  42  * The board really has 256M. However, the VC (VideoCore co-processor) shares
  43  * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
  44  * smaller amount of RAM is present in order to avoid stomping on the area
  45  * the VC uses.
  46  */
  47 #define CONFIG_SYS_SDRAM_SIZE           SZ_128M
  48 #define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SYS_SDRAM_BASE + \
  49                                          CONFIG_SYS_SDRAM_SIZE - \
  50                                          GENERATED_GBL_DATA_SIZE)
  51 #define CONFIG_SYS_MALLOC_LEN           SZ_4M
  52 #define CONFIG_SYS_MEMTEST_START        0x00100000
  53 #define CONFIG_SYS_MEMTEST_END          0x00200000
  54 #define CONFIG_LOADADDR                 0x00200000
  55
  56 /* Flash */
  57 #define CONFIG_SYS_NO_FLASH
  58
  59 /* Devices */
  60 /* GPIO */
  61 #define CONFIG_BCM2835_GPIO
  62 /* LCD */
  63 #define CONFIG_LCD
  64 #define CONFIG_LCD_DT_SIMPLEFB
  65 #define LCD_BPP                         LCD_COLOR16
  66 /*
  67  * Prevent allocation of RAM for FB; the real FB address is queried
  68  * dynamically from the VideoCore co-processor, and comes from RAM
  69  * not owned by the ARM CPU.
  70  */
  71 #define CONFIG_FB_ADDR                  0
  72 #define CONFIG_VIDEO_BCM2835
  73 #define CONFIG_SYS_WHITE_ON_BLACK
  74
  75 /* SD/MMC configuration */
  76 #define CONFIG_GENERIC_MMC
  77 #define CONFIG_MMC
  78 #define CONFIG_SDHCI
  79 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
  80 #define CONFIG_BCM2835_SDHCI
  81
  82 /* Console UART */
  83 #define CONFIG_PL011_SERIAL
  84 #define CONFIG_PL011_CLOCK              3000000
  85 #define CONFIG_PL01x_PORTS              { (void *)0x20201000 }
  86 #define CONFIG_CONS_INDEX               0
  87 #define CONFIG_BAUDRATE                 115200
  88
  89 /* Console configuration */
  90 #define CONFIG_SYS_CBSIZE               1024
  91 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE +            \
  92                                          sizeof(CONFIG_SYS_PROMPT) + 16)
  93
  94 /* Environment */
  95 #define CONFIG_ENV_SIZE                 SZ_16K
  96 #define CONFIG_ENV_IS_NOWHERE
  97 #define CONFIG_ENV_VARS_UBOOT_CONFIG
  98 #define CONFIG_SYS_LOAD_ADDR            0x1000000
  99 #define CONFIG_CONSOLE_MUX
 100 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
 101 /*
 102  * Memory layout for where various images get loaded by boot scripts:
 103  *
 104  * scriptaddr can be pretty much anywhere that doesn't conflict with something
 105  *   else. Put it low in memory to avoid conflicts.
 106  *
 107  * kernel_addr_r must be within the first 128M of RAM in order for the
 108  *   kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
 109  *   decompress itself to 0x8000 after the start of RAM, kernel_addr_r
 110  *   should not overlap that area, or the kernel will have to copy itself
 111  *   somewhere else before decompression. Similarly, the address of any other
 112  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
 113  *   this up to 16M allows for a sizable kernel to be decompressed below the
 114  *   compressed load address.
 115  *
 116  * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
 117  *   the compressed kernel to be up to 16M too.
 118  *
 119  * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
 120  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
 121  */
 122 #define CONFIG_EXTRA_ENV_SETTINGS \
 123         "stdin=serial\0" \
 124         "stderr=serial,lcd\0" \
 125         "stdout=serial,lcd\0" \
 126         "scriptaddr=0x00000000\0" \
 127         "kernel_addr_r=0x01000000\0" \
 128         "fdt_addr_r=0x02000000\0" \
 129         "ramdisk_addr_r=0x02100000\0" \
 130         "boot_targets=mmc0\0" \
 131         \
 132         "script_boot=" \
 133                 "if fatload ${devtype} ${devnum}:1 " \
 134                                         "${scriptaddr} boot.scr.uimg; then " \
 135                         "source ${scriptaddr}; " \
 136                 "fi;\0" \
 137         \
 138         "mmc_boot=" \
 139                 "setenv devtype mmc; " \
 140                 "if mmc dev ${devnum}; then " \
 141                         "run script_boot; " \
 142                 "fi\0" \
 143         \
 144         "bootcmd_mmc0=setenv devnum 0; run mmc_boot\0" \
 145
 146 #define CONFIG_BOOTCOMMAND \
 147         "for target in ${boot_targets}; do run bootcmd_${target}; done"
 148
 149 #define CONFIG_BOOTDELAY                2
 150
 151 /* Shell */
 152 #define CONFIG_SYS_HUSH_PARSER
 153 #define CONFIG_SYS_MAXARGS              8
 154 #define CONFIG_SYS_PROMPT               "U-Boot> "
 155 #define CONFIG_SYS_LONGHELP
 156 #define CONFIG_CMDLINE_EDITING
 157 #define CONFIG_COMMAND_HISTORY
 158 #define CONFIG_AUTO_COMPLETE
 159
 160 /* Commands */
 161 #include <config_cmd_default.h>
 162 #define CONFIG_CMD_BOOTZ
 163 #define CONFIG_CMD_GPIO
 164 #define CONFIG_CMD_MMC
 165 #define CONFIG_DOS_PARTITION
 166 #define CONFIG_PARTITION_UUIDS
 167 #define CONFIG_CMD_PART
 168 #define CONFIG_CMD_FS_GENERIC
 169 #define CONFIG_CMD_FAT
 170 #define CONFIG_CMD_EXT
 171 /* Some things don't make sense on this HW or yet */
 172 #undef CONFIG_CMD_FPGA
 173 #undef CONFIG_CMD_NET
 174 #undef CONFIG_CMD_NFS
 175 #undef CONFIG_CMD_SAVEENV
 176
 177 /* Device tree support for bootm/bootz */
 178 #define CONFIG_OF_LIBFDT
 179 #define CONFIG_OF_BOARD_SETUP
 180 /* ATAGs support for bootm/bootz */
 181 #define CONFIG_SETUP_MEMORY_TAGS
 182 #define CONFIG_CMDLINE_TAG
 183 #define CONFIG_INITRD_TAG
 184
 185 #endif