1 /* 2 * ti_armv7_common.h 3 * 4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/ 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 * 8 * The various ARMv7 SoCs from TI all share a number of IP blocks when 9 * implementing a given feature. Rather than define these in every 10 * board or even SoC common file, we define a common file to be re-used 11 * in all cases. While technically true that some of these details are 12 * configurable at the board design, they are common throughout SoC 13 * reference platforms as well as custom designs and become de facto 14 * standards. 15 */ 16 17 #ifndef __CONFIG_TI_ARMV7_COMMON_H__ 18 #define __CONFIG_TI_ARMV7_COMMON_H__ 19 20 /* Common define for many platforms. */ 21 #define CONFIG_SYS_GENERIC_BOARD 22 23 /* 24 * We typically do not contain NOR flash. In the cases where we do, we 25 * undefine this later. 26 */ 27 #define CONFIG_SYS_NO_FLASH 28 29 /* Support both device trees and ATAGs. */ 30 #define CONFIG_OF_LIBFDT 31 #define CONFIG_CMDLINE_TAG 32 #define CONFIG_SETUP_MEMORY_TAGS 33 #define CONFIG_INITRD_TAG 34 35 /* 36 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 37 * relocated itself to higher in memory by the time this value is used. 38 * However, set this to a 32MB offset to allow for easier Linux kernel 39 * booting as the default is often used as the kernel load address. 40 */ 41 #define CONFIG_SYS_LOAD_ADDR 0x82000000 42 43 /* 44 * We setup defaults based on constraints from the Linux kernel, which should 45 * also be safe elsewhere. We have the default load at 32MB into DDR (for 46 * the kernel), FDT above 128MB (the maximum location for the end of the 47 * kernel), and the ramdisk 512KB above that (allowing for hopefully never 48 * seen large trees). We say all of this must be within the first 256MB 49 * as that will normally be within the kernel lowmem and thus visible via 50 * bootm_size and we only run on platforms with 256MB or more of memory. 51 */ 52 #define DEFAULT_LINUX_BOOT_ENV \ 53 "loadaddr=0x82000000\0" \ 54 "kernel_addr_r=0x82000000\0" \ 55 "fdtaddr=0x88000000\0" \ 56 "fdt_addr_r=0x88000000\0" \ 57 "rdaddr=0x88080000\0" \ 58 "ramdisk_addr_r=0x88080000\0" \ 59 "bootm_size=0x10000000\0" 60 61 /* 62 * Default to a quick boot delay. 63 */ 64 #define CONFIG_BOOTDELAY 1 65 66 /* 67 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 68 * we say (for simplicity) that we have 1 bank, always, even when 69 * we have more. We always start at 0x80000000, and we place the 70 * initial stack pointer in our SRAM. Otherwise, we can define 71 * CONFIG_NR_DRAM_BANKS before including this file. 72 */ 73 #ifndef CONFIG_NR_DRAM_BANKS 74 #define CONFIG_NR_DRAM_BANKS 1 75 #endif 76 #define CONFIG_SYS_SDRAM_BASE 0x80000000 77 78 #ifndef CONFIG_SYS_INIT_SP_ADDR 79 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 80 GENERATED_GBL_DATA_SIZE) 81 #endif 82 83 /* Timer information. */ 84 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 85 86 /* I2C IP block */ 87 #define CONFIG_I2C 88 #define CONFIG_CMD_I2C 89 #define CONFIG_SYS_I2C 90 91 /* MMC/SD IP block */ 92 #define CONFIG_MMC 93 #define CONFIG_GENERIC_MMC 94 #define CONFIG_CMD_MMC 95 96 /* McSPI IP block */ 97 #define CONFIG_SPI 98 #define CONFIG_CMD_SPI 99 100 /* GPIO block */ 101 #define CONFIG_CMD_GPIO 102 103 /* 104 * The following are general good-enough settings for U-Boot. We set a 105 * large malloc pool as we generally have a lot of DDR, and we opt for 106 * function over binary size in the main portion of U-Boot as this is 107 * generally easily constrained later if needed. We enable the config 108 * options that give us information in the environment about what board 109 * we are on so we do not need to rely on the command prompt. We set a 110 * console baudrate of 115200 and use the default baud rate table. 111 */ 112 #ifdef CONFIG_DFU_MMC 113 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE) 114 #else 115 #define CONFIG_SYS_MALLOC_LEN (16 << 20) 116 #endif 117 #define CONFIG_SYS_HUSH_PARSER 118 #define CONFIG_SYS_PROMPT "U-Boot# " 119 #define CONFIG_SYS_CONSOLE_INFO_QUIET 120 #define CONFIG_BAUDRATE 115200 121 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 122 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 123 124 /* As stated above, the following choices are optional. */ 125 #define CONFIG_SYS_LONGHELP 126 #define CONFIG_AUTO_COMPLETE 127 #define CONFIG_CMDLINE_EDITING 128 #define CONFIG_VERSION_VARIABLE 129 130 /* We set the max number of command args high to avoid HUSH bugs. */ 131 #define CONFIG_SYS_MAXARGS 64 132 133 /* Console I/O Buffer Size */ 134 #define CONFIG_SYS_CBSIZE 512 135 /* Print Buffer Size */ 136 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 137 + sizeof(CONFIG_SYS_PROMPT) + 16) 138 /* Boot Argument Buffer Size */ 139 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 140 141 /* 142 * When we have SPI, NOR or NAND flash we expect to be making use of 143 * mtdparts, both for ease of use in U-Boot and for passing information 144 * on to the Linux kernel. 145 */ 146 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 147 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 148 #define CONFIG_CMD_MTDPARTS 149 #endif 150 151 #define CONFIG_CMD_ASKENV 152 #define CONFIG_CMD_BOOTZ 153 #define CONFIG_SUPPORT_RAW_INITRD 154 155 /* 156 * Common filesystems support. When we have removable storage we 157 * enabled a number of useful commands and support. 158 */ 159 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 160 #define CONFIG_DOS_PARTITION 161 #define CONFIG_CMD_FAT 162 #define CONFIG_FAT_WRITE 163 #define CONFIG_CMD_EXT2 164 #define CONFIG_CMD_EXT4 165 #define CONFIG_CMD_FS_GENERIC 166 #define CONFIG_PARTITION_UUIDS 167 #define CONFIG_CMD_PART 168 #endif 169 170 /* 171 * Our platforms make use of SPL to initalize the hardware (primarily 172 * memory) enough for full U-Boot to be loaded. We also support Falcon 173 * Mode so that the Linux kernel can be booted directly from SPL 174 * instead, if desired. We make use of the general SPL framework found 175 * under common/spl/. Given our generally common memory map, we set a 176 * number of related defaults and sizes here. 177 */ 178 #if !defined(CONFIG_NOR_BOOT) && \ 179 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 180 #define CONFIG_SPL_FRAMEWORK 181 #define CONFIG_SPL_OS_BOOT 182 183 /* 184 * Place the image at the start of the ROM defined image space (per 185 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 186 * downloaded image area. We initalize DRAM as soon as we can so that 187 * we can place stack, malloc and BSS there. We load U-Boot itself into 188 * memory at 0x80800000 for legacy reasons (to not conflict with older 189 * SPLs). We have our BSS be placed 2MiB after this, to allow for the 190 * default Linux kernel address of 0x80008000 to work with most sized 191 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the 192 * end of the BSS area. We suggest that the stack be placed at 32MiB after 193 * the start of DRAM to allow room for all of the above (handled in Kconfig). 194 */ 195 #ifndef CONFIG_SYS_TEXT_BASE 196 #define CONFIG_SYS_TEXT_BASE 0x80800000 197 #endif 198 #ifndef CONFIG_SPL_BSS_START_ADDR 199 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 200 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 201 #endif 202 #ifndef CONFIG_SYS_SPL_MALLOC_START 203 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 204 CONFIG_SPL_BSS_MAX_SIZE) 205 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 206 #endif 207 208 /* RAW SD card / eMMC locations. */ 209 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 210 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 211 212 /* FAT sd card locations. */ 213 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 214 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 215 216 #ifdef CONFIG_SPL_OS_BOOT 217 /* FAT */ 218 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 219 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 220 221 /* RAW SD card / eMMC */ 222 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 223 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 224 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 225 226 /* spl export command */ 227 #define CONFIG_CMD_SPL 228 #endif 229 230 #ifdef CONFIG_MMC 231 #define CONFIG_SPL_LIBDISK_SUPPORT 232 #define CONFIG_SPL_MMC_SUPPORT 233 #define CONFIG_SPL_FAT_SUPPORT 234 #define CONFIG_SPL_EXT_SUPPORT 235 #endif 236 237 #define CONFIG_SYS_THUMB_BUILD 238 239 /* General parts of the framework, required. */ 240 #define CONFIG_SPL_I2C_SUPPORT 241 #define CONFIG_SPL_LIBCOMMON_SUPPORT 242 #define CONFIG_SPL_LIBGENERIC_SUPPORT 243 #define CONFIG_SPL_SERIAL_SUPPORT 244 #define CONFIG_SPL_POWER_SUPPORT 245 #define CONFIG_SPL_GPIO_SUPPORT 246 #define CONFIG_SPL_BOARD_INIT 247 248 #ifdef CONFIG_NAND 249 #define CONFIG_SPL_NAND_SUPPORT 250 #define CONFIG_SPL_NAND_BASE 251 #define CONFIG_SPL_NAND_DRIVERS 252 #define CONFIG_SPL_NAND_ECC 253 #define CONFIG_SPL_MTD_SUPPORT 254 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 255 #endif 256 #endif /* !CONFIG_NOR_BOOT */ 257 258 /* Generic Environment Variables */ 259 260 #ifdef CONFIG_CMD_NET 261 #define NETARGS \ 262 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 263 "::off\0" \ 264 "nfsopts=nolock\0" \ 265 "rootpath=/export/rootfs\0" \ 266 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 267 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 268 "netargs=setenv bootargs console=${console} " \ 269 "${optargs} " \ 270 "root=/dev/nfs " \ 271 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 272 "ip=dhcp\0" \ 273 "netboot=echo Booting from network ...; " \ 274 "setenv autoload no; " \ 275 "dhcp; " \ 276 "run netloadimage; " \ 277 "run netloadfdt; " \ 278 "run netargs; " \ 279 "bootz ${loadaddr} - ${fdtaddr}\0" 280 #else 281 #define NETARGS "" 282 #endif 283 284 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 285