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 /* Enable driver model */
  34 #define CONFIG_DM
  35 #define CONFIG_CMD_DM
  36 #define CONFIG_DM_GPIO
  37
  38 /* Memory layout */
  39 #define CONFIG_NR_DRAM_BANKS            1
  40 #define CONFIG_SYS_SDRAM_BASE           0x00000000
  41 #define CONFIG_SYS_TEXT_BASE            0x00008000
  42 #define CONFIG_SYS_UBOOT_BASE           CONFIG_SYS_TEXT_BASE
  43 /*
  44  * The board really has 256M. However, the VC (VideoCore co-processor) shares
  45  * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
  46  * smaller amount of RAM is present in order to avoid stomping on the area
  47  * the VC uses.
  48  */
  49 #define CONFIG_SYS_SDRAM_SIZE           SZ_128M
  50 #define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SYS_SDRAM_BASE + \
  51                                          CONFIG_SYS_SDRAM_SIZE - \
  52                                          GENERATED_GBL_DATA_SIZE)
  53 #define CONFIG_SYS_MALLOC_LEN           SZ_4M
  54 #define CONFIG_SYS_MEMTEST_START        0x00100000
  55 #define CONFIG_SYS_MEMTEST_END          0x00200000
  56 #define CONFIG_LOADADDR                 0x00200000
  57
  58 /* Flash */
  59 #define CONFIG_SYS_NO_FLASH
  60
  61 /* Devices */
  62 /* GPIO */
  63 #define CONFIG_BCM2835_GPIO
  64 /* LCD */
  65 #define CONFIG_LCD
  66 #define CONFIG_LCD_DT_SIMPLEFB
  67 #define LCD_BPP                         LCD_COLOR16
  68 /*
  69  * Prevent allocation of RAM for FB; the real FB address is queried
  70  * dynamically from the VideoCore co-processor, and comes from RAM
  71  * not owned by the ARM CPU.
  72  */
  73 #define CONFIG_FB_ADDR                  0
  74 #define CONFIG_VIDEO_BCM2835
  75 #define CONFIG_SYS_WHITE_ON_BLACK
  76
  77 /* SD/MMC configuration */
  78 #define CONFIG_GENERIC_MMC
  79 #define CONFIG_MMC
  80 #define CONFIG_SDHCI
  81 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
  82 #define CONFIG_BCM2835_SDHCI
  83
  84 #define CONFIG_CMD_USB
  85 #ifdef CONFIG_CMD_USB
  86 #define CONFIG_USB_DWC2
  87 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
  88 #define CONFIG_USB_STORAGE
  89 #define CONFIG_USB_HOST_ETHER
  90 #define CONFIG_USB_ETHER_SMSC95XX
  91 #define CONFIG_MISC_INIT_R
  92 #endif
  93
  94 /* Console UART */
  95 #define CONFIG_PL011_SERIAL
  96 #define CONFIG_PL011_CLOCK              3000000
  97 #define CONFIG_PL01x_PORTS              { (void *)0x20201000 }
  98 #define CONFIG_CONS_INDEX               0
  99 #define CONFIG_BAUDRATE                 115200
 100
 101 /* Console configuration */
 102 #define CONFIG_SYS_CBSIZE               1024
 103 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE +            \
 104                                          sizeof(CONFIG_SYS_PROMPT) + 16)
 105
 106 /* Environment */
 107 #define CONFIG_ENV_SIZE                 SZ_16K
 108 #define CONFIG_ENV_IS_IN_FAT
 109 #define FAT_ENV_INTERFACE               "mmc"
 110 #define FAT_ENV_DEVICE_AND_PART         "0:1"
 111 #define FAT_ENV_FILE                    "uboot.env"
 112 #define CONFIG_FAT_WRITE
 113 #define CONFIG_ENV_VARS_UBOOT_CONFIG
 114 #define CONFIG_SYS_LOAD_ADDR            0x1000000
 115 #define CONFIG_CONSOLE_MUX
 116 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
 117
 118 /* Shell */
 119 #define CONFIG_SYS_MAXARGS              8
 120 #define CONFIG_SYS_PROMPT               "U-Boot> "
 121 #define CONFIG_COMMAND_HISTORY
 122
 123 /* Commands */
 124 #include <config_cmd_default.h>
 125 #define CONFIG_CMD_GPIO
 126 #define CONFIG_CMD_MMC
 127 #define CONFIG_PARTITION_UUIDS
 128 #define CONFIG_CMD_PART
 129
 130 /* Device tree support */
 131 #define CONFIG_OF_BOARD_SETUP
 132 /* ATAGs support for bootm/bootz */
 133 #define CONFIG_SETUP_MEMORY_TAGS
 134 #define CONFIG_CMDLINE_TAG
 135 #define CONFIG_INITRD_TAG
 136
 137 #include <config_distro_defaults.h>
 138
 139 /* Some things don't make sense on this HW or yet */
 140 #undef CONFIG_CMD_FPGA
 141
 142 /* Environment */
 143 #define ENV_DEVICE_SETTINGS \
 144         "stdin=serial,lcd\0" \
 145         "stdout=serial,lcd\0" \
 146         "stderr=serial,lcd\0"
 147
 148 /*
 149  * Memory layout for where various images get loaded by boot scripts:
 150  *
 151  * scriptaddr can be pretty much anywhere that doesn't conflict with something
 152  *   else. Put it low in memory to avoid conflicts.
 153  *
 154  * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
 155  *   something else. Put it low in memory to avoid conflicts.
 156  *
 157  * kernel_addr_r must be within the first 128M of RAM in order for the
 158  *   kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
 159  *   decompress itself to 0x8000 after the start of RAM, kernel_addr_r
 160  *   should not overlap that area, or the kernel will have to copy itself
 161  *   somewhere else before decompression. Similarly, the address of any other
 162  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
 163  *   this up to 16M allows for a sizable kernel to be decompressed below the
 164  *   compressed load address.
 165  *
 166  * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
 167  *   the compressed kernel to be up to 16M too.
 168  *
 169  * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
 170  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
 171  */
 172 #define ENV_MEM_LAYOUT_SETTINGS \
 173         "scriptaddr=0x00000000\0" \
 174         "pxefile_addr_r=0x00100000\0" \
 175         "kernel_addr_r=0x01000000\0" \
 176         "fdt_addr_r=0x02000000\0" \
 177         "ramdisk_addr_r=0x02100000\0" \
 178
 179 #define BOOT_TARGET_DEVICES(func) \
 180         func(MMC, mmc, 0) \
 181         func(USB, usb, 0) \
 182         func(PXE, pxe, na) \
 183         func(DHCP, dhcp, na)
 184 #include <config_distro_bootcmd.h>
 185
 186 #define CONFIG_EXTRA_ENV_SETTINGS \
 187         ENV_DEVICE_SETTINGS \
 188         ENV_MEM_LAYOUT_SETTINGS \
 189         BOOTENV
 190
 191 #define CONFIG_BOOTDELAY 2
 192
 193 #endif