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 /* 21 * We typically do not contain NOR flash. In the cases where we do, we 22 * undefine this later. 23 */ 24 #define CONFIG_SYS_NO_FLASH 25 26 /* Support both device trees and ATAGs. */ 27 #define CONFIG_CMDLINE_TAG 28 #define CONFIG_SETUP_MEMORY_TAGS 29 #define CONFIG_INITRD_TAG 30 31 /* 32 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 33 * relocated itself to higher in memory by the time this value is used. 34 * However, set this to a 32MB offset to allow for easier Linux kernel 35 * booting as the default is often used as the kernel load address. 36 */ 37 #define CONFIG_SYS_LOAD_ADDR 0x82000000 38 39 /* 40 * We setup defaults based on constraints from the Linux kernel, which should 41 * also be safe elsewhere. We have the default load at 32MB into DDR (for 42 * the kernel), FDT above 128MB (the maximum location for the end of the 43 * kernel), and the ramdisk 512KB above that (allowing for hopefully never 44 * seen large trees). We say all of this must be within the first 256MB 45 * as that will normally be within the kernel lowmem and thus visible via 46 * bootm_size and we only run on platforms with 256MB or more of memory. 47 */ 48 #define DEFAULT_LINUX_BOOT_ENV \ 49 "loadaddr=0x82000000\0" \ 50 "kernel_addr_r=0x82000000\0" \ 51 "fdtaddr=0x88000000\0" \ 52 "fdt_addr_r=0x88000000\0" \ 53 "rdaddr=0x88080000\0" \ 54 "ramdisk_addr_r=0x88080000\0" \ 55 "scriptaddr=0x80000000\0" \ 56 "pxefile_addr_r=0x80100000\0" \ 57 "bootm_size=0x10000000\0" 58 59 #define DEFAULT_MMC_TI_ARGS \ 60 "mmcdev=0\0" \ 61 "mmcrootfstype=ext4 rootwait\0" \ 62 "finduuid=part uuid mmc 0:2 uuid\0" \ 63 "args_mmc=run finduuid;setenv bootargs console=${console} " \ 64 "${optargs} " \ 65 "root=PARTUUID=${uuid} rw " \ 66 "rootfstype=${mmcrootfstype}\0" \ 67 "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \ 68 "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \ 69 "source ${loadaddr}\0" \ 70 "bootenvfile=uEnv.txt\0" \ 71 "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \ 72 "env import -t ${loadaddr} ${filesize}\0" \ 73 "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \ 74 "envboot=mmc dev ${mmcdev}; " \ 75 "if mmc rescan; then " \ 76 "echo SD/MMC found on device ${mmcdev};" \ 77 "if run loadbootscript; then " \ 78 "run bootscript;" \ 79 "else " \ 80 "if run loadbootenv; then " \ 81 "echo Loaded env from ${bootenvfile};" \ 82 "run importbootenv;" \ 83 "fi;" \ 84 "if test -n $uenvcmd; then " \ 85 "echo Running uenvcmd ...;" \ 86 "run uenvcmd;" \ 87 "fi;" \ 88 "fi;" \ 89 "fi;\0" \ 90 91 /* 92 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 93 * we say (for simplicity) that we have 1 bank, always, even when 94 * we have more. We always start at 0x80000000, and we place the 95 * initial stack pointer in our SRAM. Otherwise, we can define 96 * CONFIG_NR_DRAM_BANKS before including this file. 97 */ 98 #ifndef CONFIG_NR_DRAM_BANKS 99 #define CONFIG_NR_DRAM_BANKS 1 100 #endif 101 #define CONFIG_SYS_SDRAM_BASE 0x80000000 102 103 #ifndef CONFIG_SYS_INIT_SP_ADDR 104 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 105 GENERATED_GBL_DATA_SIZE) 106 #endif 107 108 /* Timer information. */ 109 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 110 111 /* I2C IP block */ 112 #define CONFIG_I2C 113 #define CONFIG_SYS_I2C 114 115 /* MMC/SD IP block */ 116 #define CONFIG_MMC 117 #define CONFIG_GENERIC_MMC 118 #define CONFIG_CMD_MMC 119 120 /* McSPI IP block */ 121 #define CONFIG_SPI 122 123 /* GPIO block */ 124 125 /* 126 * The following are general good-enough settings for U-Boot. We set a 127 * large malloc pool as we generally have a lot of DDR, and we opt for 128 * function over binary size in the main portion of U-Boot as this is 129 * generally easily constrained later if needed. We enable the config 130 * options that give us information in the environment about what board 131 * we are on so we do not need to rely on the command prompt. We set a 132 * console baudrate of 115200 and use the default baud rate table. 133 */ 134 #ifdef CONFIG_DFU_MMC 135 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE) 136 #else 137 #define CONFIG_SYS_MALLOC_LEN (16 << 20) 138 #endif 139 #define CONFIG_SYS_CONSOLE_INFO_QUIET 140 #define CONFIG_BAUDRATE 115200 141 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 142 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 143 144 /* As stated above, the following choices are optional. */ 145 #define CONFIG_SYS_LONGHELP 146 #define CONFIG_AUTO_COMPLETE 147 #define CONFIG_CMDLINE_EDITING 148 #define CONFIG_VERSION_VARIABLE 149 150 /* We set the max number of command args high to avoid HUSH bugs. */ 151 #define CONFIG_SYS_MAXARGS 64 152 153 /* Console I/O Buffer Size */ 154 #define CONFIG_SYS_CBSIZE 512 155 /* Print Buffer Size */ 156 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 157 + sizeof(CONFIG_SYS_PROMPT) + 16) 158 /* Boot Argument Buffer Size */ 159 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 160 161 /* 162 * When we have SPI, NOR or NAND flash we expect to be making use of 163 * mtdparts, both for ease of use in U-Boot and for passing information 164 * on to the Linux kernel. 165 */ 166 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 167 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 168 #define CONFIG_CMD_MTDPARTS 169 #endif 170 171 #define CONFIG_CMD_ASKENV 172 #define CONFIG_CMD_BOOTZ 173 #define CONFIG_SUPPORT_RAW_INITRD 174 175 /* 176 * Common filesystems support. When we have removable storage we 177 * enabled a number of useful commands and support. 178 */ 179 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 180 #define CONFIG_DOS_PARTITION 181 #define CONFIG_CMD_FAT 182 #define CONFIG_FAT_WRITE 183 #define CONFIG_CMD_EXT2 184 #define CONFIG_CMD_EXT4 185 #define CONFIG_CMD_FS_GENERIC 186 #define CONFIG_PARTITION_UUIDS 187 #define CONFIG_CMD_PART 188 #endif 189 190 /* 191 * Our platforms make use of SPL to initalize the hardware (primarily 192 * memory) enough for full U-Boot to be loaded. We also support Falcon 193 * Mode so that the Linux kernel can be booted directly from SPL 194 * instead, if desired. We make use of the general SPL framework found 195 * under common/spl/. Given our generally common memory map, we set a 196 * number of related defaults and sizes here. 197 */ 198 #if !defined(CONFIG_NOR_BOOT) && \ 199 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 200 #define CONFIG_SPL_FRAMEWORK 201 #define CONFIG_SPL_OS_BOOT 202 203 /* 204 * Place the image at the start of the ROM defined image space (per 205 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 206 * downloaded image area. We initalize DRAM as soon as we can so that 207 * we can place stack, malloc and BSS there. We load U-Boot itself into 208 * memory at 0x80800000 for legacy reasons (to not conflict with older 209 * SPLs). We have our BSS be placed 2MiB after this, to allow for the 210 * default Linux kernel address of 0x80008000 to work with most sized 211 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the 212 * end of the BSS area. We suggest that the stack be placed at 32MiB after 213 * the start of DRAM to allow room for all of the above (handled in Kconfig). 214 */ 215 #ifndef CONFIG_SYS_TEXT_BASE 216 #define CONFIG_SYS_TEXT_BASE 0x80800000 217 #endif 218 #ifndef CONFIG_SPL_BSS_START_ADDR 219 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 220 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 221 #endif 222 #ifndef CONFIG_SYS_SPL_MALLOC_START 223 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 224 CONFIG_SPL_BSS_MAX_SIZE) 225 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 226 #endif 227 228 /* RAW SD card / eMMC locations. */ 229 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 230 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 231 232 /* FAT sd card locations. */ 233 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 234 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 235 236 #ifdef CONFIG_SPL_OS_BOOT 237 /* FAT */ 238 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 239 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 240 241 /* RAW SD card / eMMC */ 242 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 243 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 244 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 245 246 /* spl export command */ 247 #define CONFIG_CMD_SPL 248 #endif 249 250 #ifdef CONFIG_MMC 251 #define CONFIG_SPL_LIBDISK_SUPPORT 252 #define CONFIG_SPL_MMC_SUPPORT 253 #define CONFIG_SPL_FAT_SUPPORT 254 #define CONFIG_SPL_EXT_SUPPORT 255 #endif 256 257 #define CONFIG_SYS_THUMB_BUILD 258 259 /* General parts of the framework, required. */ 260 #define CONFIG_SPL_I2C_SUPPORT 261 #define CONFIG_SPL_LIBCOMMON_SUPPORT 262 #define CONFIG_SPL_LIBGENERIC_SUPPORT 263 #define CONFIG_SPL_SERIAL_SUPPORT 264 #define CONFIG_SPL_POWER_SUPPORT 265 #define CONFIG_SPL_GPIO_SUPPORT 266 #define CONFIG_SPL_BOARD_INIT 267 268 #ifdef CONFIG_NAND 269 #define CONFIG_SPL_NAND_SUPPORT 270 #define CONFIG_SPL_NAND_BASE 271 #define CONFIG_SPL_NAND_DRIVERS 272 #define CONFIG_SPL_NAND_ECC 273 #define CONFIG_SPL_MTD_SUPPORT 274 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 275 #endif 276 #endif /* !CONFIG_NOR_BOOT */ 277 278 /* Generic Environment Variables */ 279 280 #ifdef CONFIG_CMD_NET 281 #define NETARGS \ 282 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 283 "::off\0" \ 284 "nfsopts=nolock\0" \ 285 "rootpath=/export/rootfs\0" \ 286 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 287 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 288 "netargs=setenv bootargs console=${console} " \ 289 "${optargs} " \ 290 "root=/dev/nfs " \ 291 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 292 "ip=dhcp\0" \ 293 "netboot=echo Booting from network ...; " \ 294 "setenv autoload no; " \ 295 "dhcp; " \ 296 "run netloadimage; " \ 297 "run netloadfdt; " \ 298 "run netargs; " \ 299 "bootz ${loadaddr} - ${fdtaddr}\0" 300 #else 301 #define NETARGS "" 302 #endif 303 304 #include <config_distro_defaults.h> 305 #define CONFIG_CMD_EXT4_WRITE 306 307 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 308