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 187