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 #include <asm/arch/timer.h>
  12
  13 /* Architecture, CPU, etc.*/
  14 #define CONFIG_SYS_GENERIC_BOARD
  15 #define CONFIG_BCM2835
  16 #define CONFIG_ARCH_CPU_INIT
  17 #define CONFIG_SYS_DCACHE_OFF
  18
  19 #define CONFIG_SYS_TIMER_RATE           1000000
  20 #define CONFIG_SYS_TIMER_COUNTER        \
  21         (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo)
  22
  23 /*
  24  * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
  25  * so 2708 has historically been used rather than a dedicated 2835 ID.
  26  *
  27  * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation
  28  * chose to use someone else's previously registered machine ID (3139, MX51_GGC)
  29  * rather than obtaining a valid ID:-/
  30  */
  31 #ifndef CONFIG_BCM2836
  32 #define CONFIG_MACH_TYPE                MACH_TYPE_BCM2708
  33 #endif
  34
  35 /* Memory layout */
  36 #define CONFIG_NR_DRAM_BANKS            1
  37 #define CONFIG_SYS_SDRAM_BASE           0x00000000
  38 #define CONFIG_SYS_TEXT_BASE            0x00008000
  39 #define CONFIG_SYS_UBOOT_BASE           CONFIG_SYS_TEXT_BASE
  40 /*
  41  * The board really has 256M. However, the VC (VideoCore co-processor) shares
  42  * the RAM, and uses a configurable portion at the top. We tell U-Boot that a
  43  * smaller amount of RAM is present in order to avoid stomping on the area
  44  * the VC uses.
  45  */
  46 #define CONFIG_SYS_SDRAM_SIZE           SZ_128M
  47 #define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SYS_SDRAM_BASE + \
  48                                          CONFIG_SYS_SDRAM_SIZE - \
  49                                          GENERATED_GBL_DATA_SIZE)
  50 #define CONFIG_SYS_MALLOC_LEN           SZ_4M
  51 #define CONFIG_SYS_MEMTEST_START        0x00100000
  52 #define CONFIG_SYS_MEMTEST_END          0x00200000
  53 #define CONFIG_LOADADDR                 0x00200000
  54
  55 /* Flash */
  56 #define CONFIG_SYS_NO_FLASH
  57
  58 /* Devices */
  59 /* GPIO */
  60 #define CONFIG_BCM2835_GPIO
  61 /* LCD */
  62 #define CONFIG_LCD
  63 #define CONFIG_LCD_DT_SIMPLEFB
  64 #define LCD_BPP                         LCD_COLOR16
  65 /*
  66  * Prevent allocation of RAM for FB; the real FB address is queried
  67  * dynamically from the VideoCore co-processor, and comes from RAM
  68  * not owned by the ARM CPU.
  69  */
  70 #define CONFIG_FB_ADDR                  0
  71 #define CONFIG_VIDEO_BCM2835
  72 #define CONFIG_SYS_WHITE_ON_BLACK
  73
  74 /* SD/MMC configuration */
  75 #define CONFIG_GENERIC_MMC
  76 #define CONFIG_MMC
  77 #define CONFIG_SDHCI
  78 #define CONFIG_MMC_SDHCI_IO_ACCESSORS
  79 #define CONFIG_BCM2835_SDHCI
  80
  81 #define CONFIG_CMD_USB
  82 #ifdef CONFIG_CMD_USB
  83 #define CONFIG_USB_DWC2
  84 #ifdef CONFIG_BCM2836
  85 #define CONFIG_USB_DWC2_REG_ADDR 0x3f980000
  86 #else
  87 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000
  88 #endif
  89 #define CONFIG_USB_STORAGE
  90 #define CONFIG_USB_HOST_ETHER
  91 #define CONFIG_USB_ETHER_SMSC95XX
  92 #define CONFIG_MISC_INIT_R
  93 #endif
  94
  95 /* Console UART */
  96 #define CONFIG_PL01X_SERIAL
  97 #define CONFIG_CONS_INDEX               0
  98 #define CONFIG_BAUDRATE                 115200
  99
 100 /* Console configuration */
 101 #define CONFIG_SYS_CBSIZE               1024
 102 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE +            \
 103                                          sizeof(CONFIG_SYS_PROMPT) + 16)
 104
 105 /* Environment */
 106 #define CONFIG_ENV_SIZE                 SZ_16K
 107 #define CONFIG_ENV_IS_IN_FAT
 108 #define FAT_ENV_INTERFACE               "mmc"
 109 #define FAT_ENV_DEVICE_AND_PART         "0:1"
 110 #define FAT_ENV_FILE                    "uboot.env"
 111 #define CONFIG_FAT_WRITE
 112 #define CONFIG_ENV_VARS_UBOOT_CONFIG
 113 #define CONFIG_SYS_LOAD_ADDR            0x1000000
 114 #define CONFIG_CONSOLE_MUX
 115 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
 116
 117 /* Shell */
 118 #define CONFIG_SYS_MAXARGS              8
 119 #define CONFIG_SYS_PROMPT               "U-Boot> "
 120 #define CONFIG_COMMAND_HISTORY
 121
 122 /* Commands */
 123 #define CONFIG_CMD_GPIO
 124 #define CONFIG_CMD_MMC
 125 #define CONFIG_PARTITION_UUIDS
 126 #define CONFIG_CMD_PART
 127
 128 /* Device tree support */
 129 #define CONFIG_OF_BOARD_SETUP
 130 /* ATAGs support for bootm/bootz */
 131 #define CONFIG_SETUP_MEMORY_TAGS
 132 #define CONFIG_CMDLINE_TAG
 133 #define CONFIG_INITRD_TAG
 134
 135 #include <config_distro_defaults.h>
 136
 137 /* Environment */
 138 #define ENV_DEVICE_SETTINGS \
 139         "stdin=serial,lcd\0" \
 140         "stdout=serial,lcd\0" \
 141         "stderr=serial,lcd\0"
 142
 143 /*
 144  * Memory layout for where various images get loaded by boot scripts:
 145  *
 146  * scriptaddr can be pretty much anywhere that doesn't conflict with something
 147  *   else. Put it low in memory to avoid conflicts.
 148  *
 149  * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
 150  *   something else. Put it low in memory to avoid conflicts.
 151  *
 152  * kernel_addr_r must be within the first 128M of RAM in order for the
 153  *   kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
 154  *   decompress itself to 0x8000 after the start of RAM, kernel_addr_r
 155  *   should not overlap that area, or the kernel will have to copy itself
 156  *   somewhere else before decompression. Similarly, the address of any other
 157  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
 158  *   this up to 16M allows for a sizable kernel to be decompressed below the
 159  *   compressed load address.
 160  *
 161  * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
 162  *   the compressed kernel to be up to 16M too.
 163  *
 164  * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
 165  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
 166  */
 167 #define ENV_MEM_LAYOUT_SETTINGS \
 168         "scriptaddr=0x00000000\0" \
 169         "pxefile_addr_r=0x00100000\0" \
 170         "kernel_addr_r=0x01000000\0" \
 171         "fdt_addr_r=0x02000000\0" \
 172         "ramdisk_addr_r=0x02100000\0" \
 173
 174 #define BOOT_TARGET_DEVICES(func) \
 175         func(MMC, mmc, 0) \
 176         func(USB, usb, 0) \
 177         func(PXE, pxe, na) \
 178         func(DHCP, dhcp, na)
 179 #include <config_distro_bootcmd.h>
 180
 181 #define CONFIG_EXTRA_ENV_SETTINGS \
 182         ENV_DEVICE_SETTINGS \
 183         ENV_MEM_LAYOUT_SETTINGS \
 184         BOOTENV
 185
 186 #define CONFIG_BOOTDELAY 2
 187
 188 #endif