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 118 119 /* McSPI IP block */ 120 #define CONFIG_SPI 121 122 /* GPIO block */ 123 124 /* 125 * The following are general good-enough settings for U-Boot. We set a 126 * large malloc pool as we generally have a lot of DDR, and we opt for 127 * function over binary size in the main portion of U-Boot as this is 128 * generally easily constrained later if needed. We enable the config 129 * options that give us information in the environment about what board 130 * we are on so we do not need to rely on the command prompt. We set a 131 * console baudrate of 115200 and use the default baud rate table. 132 */ 133 #ifdef CONFIG_DFU_MMC 134 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE) 135 #else 136 #define CONFIG_SYS_MALLOC_LEN (16 << 20) 137 #endif 138 #define CONFIG_SYS_CONSOLE_INFO_QUIET 139 #define CONFIG_BAUDRATE 115200 140 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 141 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 142 143 /* As stated above, the following choices are optional. */ 144 #define CONFIG_SYS_LONGHELP 145 #define CONFIG_AUTO_COMPLETE 146 #define CONFIG_CMDLINE_EDITING 147 #define CONFIG_VERSION_VARIABLE 148 149 /* We set the max number of command args high to avoid HUSH bugs. */ 150 #define CONFIG_SYS_MAXARGS 64 151 152 /* Console I/O Buffer Size */ 153 #define CONFIG_SYS_CBSIZE 512 154 /* Print Buffer Size */ 155 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 156 + sizeof(CONFIG_SYS_PROMPT) + 16) 157 /* Boot Argument Buffer Size */ 158 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 159 160 /* 161 * When we have SPI, NOR or NAND flash we expect to be making use of 162 * mtdparts, both for ease of use in U-Boot and for passing information 163 * on to the Linux kernel. 164 */ 165 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 166 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 167 #define CONFIG_CMD_MTDPARTS 168 #endif 169 170 #define CONFIG_SUPPORT_RAW_INITRD 171 172 /* 173 * Common filesystems support. When we have removable storage we 174 * enabled a number of useful commands and support. 175 */ 176 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 177 #define CONFIG_DOS_PARTITION 178 #define CONFIG_FAT_WRITE 179 #define CONFIG_PARTITION_UUIDS 180 #define CONFIG_CMD_PART 181 #endif 182 183 /* 184 * Our platforms make use of SPL to initalize the hardware (primarily 185 * memory) enough for full U-Boot to be loaded. We also support Falcon 186 * Mode so that the Linux kernel can be booted directly from SPL 187 * instead, if desired. We make use of the general SPL framework found 188 * under common/spl/. Given our generally common memory map, we set a 189 * number of related defaults and sizes here. 190 */ 191 #if !defined(CONFIG_NOR_BOOT) && \ 192 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 193 #define CONFIG_SPL_FRAMEWORK 194 #define CONFIG_SPL_OS_BOOT 195 196 /* 197 * Place the image at the start of the ROM defined image space (per 198 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 199 * downloaded image area. We initalize DRAM as soon as we can so that 200 * we can place stack, malloc and BSS there. We load U-Boot itself into 201 * memory at 0x80800000 for legacy reasons (to not conflict with older 202 * SPLs). We have our BSS be placed 2MiB after this, to allow for the 203 * default Linux kernel address of 0x80008000 to work with most sized 204 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the 205 * end of the BSS area. We suggest that the stack be placed at 32MiB after 206 * the start of DRAM to allow room for all of the above (handled in Kconfig). 207 */ 208 #ifndef CONFIG_SYS_TEXT_BASE 209 #define CONFIG_SYS_TEXT_BASE 0x80800000 210 #endif 211 #ifndef CONFIG_SPL_BSS_START_ADDR 212 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 213 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 214 #endif 215 #ifndef CONFIG_SYS_SPL_MALLOC_START 216 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 217 CONFIG_SPL_BSS_MAX_SIZE) 218 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 219 #endif 220 221 /* RAW SD card / eMMC locations. */ 222 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 223 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 224 225 /* FAT sd card locations. */ 226 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 227 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 228 229 #ifdef CONFIG_SPL_OS_BOOT 230 /* FAT */ 231 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 232 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 233 234 /* RAW SD card / eMMC */ 235 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 236 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 237 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 238 239 /* spl export command */ 240 #define CONFIG_CMD_SPL 241 #endif 242 243 #ifdef CONFIG_MMC 244 #define CONFIG_SPL_LIBDISK_SUPPORT 245 #define CONFIG_SPL_MMC_SUPPORT 246 #define CONFIG_SPL_FAT_SUPPORT 247 #define CONFIG_SPL_EXT_SUPPORT 248 #endif 249 250 #define CONFIG_SYS_THUMB_BUILD 251 252 /* General parts of the framework, required. */ 253 #define CONFIG_SPL_I2C_SUPPORT 254 #define CONFIG_SPL_LIBCOMMON_SUPPORT 255 #define CONFIG_SPL_LIBGENERIC_SUPPORT 256 #define CONFIG_SPL_SERIAL_SUPPORT 257 #define CONFIG_SPL_POWER_SUPPORT 258 #define CONFIG_SPL_GPIO_SUPPORT 259 #define CONFIG_SPL_BOARD_INIT 260 261 #ifdef CONFIG_NAND 262 #define CONFIG_SPL_NAND_SUPPORT 263 #define CONFIG_SPL_NAND_BASE 264 #define CONFIG_SPL_NAND_DRIVERS 265 #define CONFIG_SPL_NAND_ECC 266 #define CONFIG_SPL_MTD_SUPPORT 267 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 268 #endif 269 #endif /* !CONFIG_NOR_BOOT */ 270 271 /* Generic Environment Variables */ 272 273 #ifdef CONFIG_CMD_NET 274 #define NETARGS \ 275 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 276 "::off\0" \ 277 "nfsopts=nolock\0" \ 278 "rootpath=/export/rootfs\0" \ 279 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 280 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 281 "netargs=setenv bootargs console=${console} " \ 282 "${optargs} " \ 283 "root=/dev/nfs " \ 284 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 285 "ip=dhcp\0" \ 286 "netboot=echo Booting from network ...; " \ 287 "setenv autoload no; " \ 288 "dhcp; " \ 289 "run netloadimage; " \ 290 "run netloadfdt; " \ 291 "run netargs; " \ 292 "bootz ${loadaddr} - ${fdtaddr}\0" 293 #else 294 #define NETARGS "" 295 #endif 296 297 #include <config_distro_defaults.h> 298 299 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 300