1 /* 2 * (C) Copyright 2012 Stephen Warren 3 * 4 * SPDX-License-Identifier: GPL-2.0 5 */ 6 7 #ifndef __CONFIG_H 8 #define __CONFIG_H 9 10 #include <linux/sizes.h> 11 12 /* Architecture, CPU, etc.*/ 13 #define CONFIG_SYS_GENERIC_BOARD 14 #define CONFIG_BCM2835 15 #define CONFIG_ARCH_CPU_INIT 16 #define CONFIG_SYS_DCACHE_OFF 17 /* 18 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC, 19 * so 2708 has historically been used rather than a dedicated 2835 ID. 20 */ 21 #define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 22 23 /* Memory layout */ 24 #define CONFIG_NR_DRAM_BANKS 1 25 #define CONFIG_SYS_SDRAM_BASE 0x00000000 26 #define CONFIG_SYS_TEXT_BASE 0x00008000 27 #define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE 28 /* 29 * The board really has 256M. However, the VC (VideoCore co-processor) shares 30 * the RAM, and uses a configurable portion at the top. We tell U-Boot that a 31 * smaller amount of RAM is present in order to avoid stomping on the area 32 * the VC uses. 33 */ 34 #define CONFIG_SYS_SDRAM_SIZE SZ_128M 35 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ 36 CONFIG_SYS_SDRAM_SIZE - \ 37 GENERATED_GBL_DATA_SIZE) 38 #define CONFIG_SYS_MALLOC_LEN SZ_4M 39 #define CONFIG_SYS_MEMTEST_START 0x00100000 40 #define CONFIG_SYS_MEMTEST_END 0x00200000 41 #define CONFIG_LOADADDR 0x00200000 42 43 /* Flash */ 44 #define CONFIG_SYS_NO_FLASH 45 46 /* Devices */ 47 /* GPIO */ 48 #define CONFIG_BCM2835_GPIO 49 /* LCD */ 50 #define CONFIG_LCD 51 #define CONFIG_LCD_DT_SIMPLEFB 52 #define LCD_BPP LCD_COLOR16 53 /* 54 * Prevent allocation of RAM for FB; the real FB address is queried 55 * dynamically from the VideoCore co-processor, and comes from RAM 56 * not owned by the ARM CPU. 57 */ 58 #define CONFIG_FB_ADDR 0 59 #define CONFIG_VIDEO_BCM2835 60 #define CONFIG_SYS_WHITE_ON_BLACK 61 62 /* SD/MMC configuration */ 63 #define CONFIG_GENERIC_MMC 64 #define CONFIG_MMC 65 #define CONFIG_SDHCI 66 #define CONFIG_MMC_SDHCI_IO_ACCESSORS 67 #define CONFIG_BCM2835_SDHCI 68 69 #define CONFIG_CMD_USB 70 #ifdef CONFIG_CMD_USB 71 #define CONFIG_USB_DWC2 72 #define CONFIG_USB_DWC2_REG_ADDR 0x20980000 73 #define CONFIG_USB_STORAGE 74 #define CONFIG_USB_HOST_ETHER 75 #define CONFIG_USB_ETHER_SMSC95XX 76 #define CONFIG_MISC_INIT_R 77 #endif 78 79 /* Console UART */ 80 #define CONFIG_PL01X_SERIAL 81 #define CONFIG_CONS_INDEX 0 82 #define CONFIG_BAUDRATE 115200 83 84 /* Console configuration */ 85 #define CONFIG_SYS_CBSIZE 1024 86 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ 87 sizeof(CONFIG_SYS_PROMPT) + 16) 88 89 /* Environment */ 90 #define CONFIG_ENV_SIZE SZ_16K 91 #define CONFIG_ENV_IS_IN_FAT 92 #define FAT_ENV_INTERFACE "mmc" 93 #define FAT_ENV_DEVICE_AND_PART "0:1" 94 #define FAT_ENV_FILE "uboot.env" 95 #define CONFIG_FAT_WRITE 96 #define CONFIG_ENV_VARS_UBOOT_CONFIG 97 #define CONFIG_SYS_LOAD_ADDR 0x1000000 98 #define CONFIG_CONSOLE_MUX 99 #define CONFIG_SYS_CONSOLE_IS_IN_ENV 100 101 /* Shell */ 102 #define CONFIG_SYS_MAXARGS 8 103 #define CONFIG_SYS_PROMPT "U-Boot> " 104 #define CONFIG_COMMAND_HISTORY 105 106 /* Commands */ 107 #include <config_cmd_default.h> 108 #define CONFIG_CMD_GPIO 109 #define CONFIG_CMD_MMC 110 #define CONFIG_PARTITION_UUIDS 111 #define CONFIG_CMD_PART 112 113 /* Device tree support */ 114 #define CONFIG_OF_BOARD_SETUP 115 /* ATAGs support for bootm/bootz */ 116 #define CONFIG_SETUP_MEMORY_TAGS 117 #define CONFIG_CMDLINE_TAG 118 #define CONFIG_INITRD_TAG 119 120 #include <config_distro_defaults.h> 121 122 /* Some things don't make sense on this HW or yet */ 123 #undef CONFIG_CMD_FPGA 124 125 /* Environment */ 126 #define ENV_DEVICE_SETTINGS \ 127 "stdin=serial,lcd\0" \ 128 "stdout=serial,lcd\0" \ 129 "stderr=serial,lcd\0" 130 131 /* 132 * Memory layout for where various images get loaded by boot scripts: 133 * 134 * scriptaddr can be pretty much anywhere that doesn't conflict with something 135 * else. Put it low in memory to avoid conflicts. 136 * 137 * pxefile_addr_r can be pretty much anywhere that doesn't conflict with 138 * something else. Put it low in memory to avoid conflicts. 139 * 140 * kernel_addr_r must be within the first 128M of RAM in order for the 141 * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will 142 * decompress itself to 0x8000 after the start of RAM, kernel_addr_r 143 * should not overlap that area, or the kernel will have to copy itself 144 * somewhere else before decompression. Similarly, the address of any other 145 * data passed to the kernel shouldn't overlap the start of RAM. Pushing 146 * this up to 16M allows for a sizable kernel to be decompressed below the 147 * compressed load address. 148 * 149 * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for 150 * the compressed kernel to be up to 16M too. 151 * 152 * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows 153 * for the FDT/DTB to be up to 1M, which is hopefully plenty. 154 */ 155 #define ENV_MEM_LAYOUT_SETTINGS \ 156 "scriptaddr=0x00000000\0" \ 157 "pxefile_addr_r=0x00100000\0" \ 158 "kernel_addr_r=0x01000000\0" \ 159 "fdt_addr_r=0x02000000\0" \ 160 "ramdisk_addr_r=0x02100000\0" \ 161 162 #define BOOT_TARGET_DEVICES(func) \ 163 func(MMC, mmc, 0) \ 164 func(USB, usb, 0) \ 165 func(PXE, pxe, na) \ 166 func(DHCP, dhcp, na) 167 #include <config_distro_bootcmd.h> 168 169 #define CONFIG_EXTRA_ENV_SETTINGS \ 170 ENV_DEVICE_SETTINGS \ 171 ENV_MEM_LAYOUT_SETTINGS \ 172 BOOTENV 173 174 #define CONFIG_BOOTDELAY 2 175 176 #endif 177