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 #define CONFIG_DM_SERIAL 38 39 /* Memory layout */ 40 #define CONFIG_NR_DRAM_BANKS 1 41 #define CONFIG_SYS_SDRAM_BASE 0x00000000 42 #define CONFIG_SYS_TEXT_BASE 0x00008000 43 #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE 44 /* 45 * The board really has 256M. However, the VC (VideoCore co-processor) shares 46 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a 47 * smaller amount of RAM is present in order to avoid stomping on the area 48 * the VC uses. 49 */ 50 #define CONFIG_SYS_SDRAM_SIZE SZ_128M 51 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ 52 CONFIG_SYS_SDRAM_SIZE - \ 53 GENERATED_GBL_DATA_SIZE) 54 #define CONFIG_SYS_MALLOC_LEN SZ_4M 55 #define CONFIG_SYS_MALLOC_F_LEN (1 << 10) 56 #define CONFIG_SYS_MEMTEST_START 0x00100000 57 #define CONFIG_SYS_MEMTEST_END 0x00200000 58 #define CONFIG_LOADADDR 0x00200000 59 60 /* Flash */ 61 #define CONFIG_SYS_NO_FLASH 62 63 /* Devices */ 64 /* GPIO */ 65 #define CONFIG_BCM2835_GPIO 66 /* LCD */ 67 #define CONFIG_LCD 68 #define CONFIG_LCD_DT_SIMPLEFB 69 #define LCD_BPP LCD_COLOR16 70 /* 71 * Prevent allocation of RAM for FB; the real FB address is queried 72 * dynamically from the VideoCore co-processor, and comes from RAM 73 * not owned by the ARM CPU. 74 */ 75 #define CONFIG_FB_ADDR 0 76 #define CONFIG_VIDEO_BCM2835 77 #define CONFIG_SYS_WHITE_ON_BLACK 78 79 /* SD/MMC configuration */ 80 #define CONFIG_GENERIC_MMC 81 #define CONFIG_MMC 82 #define CONFIG_SDHCI 83 #define CONFIG_MMC_SDHCI_IO_ACCESSORS 84 #define CONFIG_BCM2835_SDHCI 85 86 #define CONFIG_CMD_USB 87 #ifdef CONFIG_CMD_USB 88 #define CONFIG_USB_DWC2 89 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000 90 #define CONFIG_USB_STORAGE 91 #define CONFIG_USB_HOST_ETHER 92 #define CONFIG_USB_ETHER_SMSC95XX 93 #define CONFIG_MISC_INIT_R 94 #endif 95 96 /* Console UART */ 97 #define CONFIG_PL01X_SERIAL 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 194