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 "boot_fdt=try\0" 59 60 #define DEFAULT_MMC_TI_ARGS \ 61 "mmcdev=0\0" \ 62 "mmcrootfstype=ext4 rootwait\0" \ 63 "finduuid=part uuid mmc ${bootpart} uuid\0" \ 64 "args_mmc=run finduuid;setenv bootargs console=${console} " \ 65 "${optargs} " \ 66 "root=PARTUUID=${uuid} rw " \ 67 "rootfstype=${mmcrootfstype}\0" \ 68 "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \ 69 "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \ 70 "source ${loadaddr}\0" \ 71 "bootenvfile=uEnv.txt\0" \ 72 "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \ 73 "env import -t ${loadaddr} ${filesize}\0" \ 74 "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \ 75 "loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \ 76 "loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \ 77 "envboot=mmc dev ${mmcdev}; " \ 78 "if mmc rescan; then " \ 79 "echo SD/MMC found on device ${mmcdev};" \ 80 "if run loadbootscript; then " \ 81 "run bootscript;" \ 82 "else " \ 83 "if run loadbootenv; then " \ 84 "echo Loaded env from ${bootenvfile};" \ 85 "run importbootenv;" \ 86 "fi;" \ 87 "if test -n $uenvcmd; then " \ 88 "echo Running uenvcmd ...;" \ 89 "run uenvcmd;" \ 90 "fi;" \ 91 "fi;" \ 92 "fi;\0" \ 93 "mmcloados=run args_mmc; " \ 94 "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ 95 "if run loadfdt; then " \ 96 "bootz ${loadaddr} - ${fdtaddr}; " \ 97 "else " \ 98 "if test ${boot_fdt} = try; then " \ 99 "bootz; " \ 100 "else " \ 101 "echo WARN: Cannot load the DT; " \ 102 "fi; " \ 103 "fi; " \ 104 "else " \ 105 "bootz; " \ 106 "fi;\0" \ 107 "mmcboot=mmc dev ${mmcdev}; " \ 108 "setenv devnum ${mmcdev}; " \ 109 "setenv devtype mmc; " \ 110 "if mmc rescan; then " \ 111 "echo SD/MMC found on device ${mmcdev};" \ 112 "if run loadimage; then " \ 113 "if test ${boot_fit} -eq 1; then " \ 114 "run loadfit; " \ 115 "else " \ 116 "run mmcloados;" \ 117 "fi;" \ 118 "fi;" \ 119 "fi;\0" \ 120 121 #define DEFAULT_FIT_TI_ARGS \ 122 "boot_fit=0\0" \ 123 "fit_loadaddr=0x88000000\0" \ 124 "fit_bootfile=fitImage.itb\0" \ 125 "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \ 126 "args_fit=setenv bootargs console=${console} \0" \ 127 "loadfit=run args_fit; bootm ${loadaddr}#${fdtfile};\0" \ 128 129 /* 130 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 131 * we say (for simplicity) that we have 1 bank, always, even when 132 * we have more. We always start at 0x80000000, and we place the 133 * initial stack pointer in our SRAM. Otherwise, we can define 134 * CONFIG_NR_DRAM_BANKS before including this file. 135 */ 136 #ifndef CONFIG_NR_DRAM_BANKS 137 #define CONFIG_NR_DRAM_BANKS 1 138 #endif 139 #define CONFIG_SYS_SDRAM_BASE 0x80000000 140 141 #ifndef CONFIG_SYS_INIT_SP_ADDR 142 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 143 GENERATED_GBL_DATA_SIZE) 144 #endif 145 146 /* Timer information. */ 147 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 148 149 /* 150 * Disable DM_* for SPL build and can be re-enabled after adding 151 * DM support in SPL 152 */ 153 #ifdef CONFIG_SPL_BUILD 154 #undef CONFIG_DM_I2C 155 #endif 156 157 /* I2C IP block */ 158 #define CONFIG_I2C 159 #ifndef CONFIG_DM_I2C 160 #define CONFIG_SYS_I2C 161 #else 162 /* 163 * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client 164 * devices are adopted to DM 165 */ 166 #define CONFIG_DM_I2C_COMPAT 167 #endif 168 169 /* MMC/SD IP block */ 170 #define CONFIG_GENERIC_MMC 171 172 /* McSPI IP block */ 173 #define CONFIG_SPI 174 175 /* GPIO block */ 176 177 /* 178 * The following are general good-enough settings for U-Boot. We set a 179 * large malloc pool as we generally have a lot of DDR, and we opt for 180 * function over binary size in the main portion of U-Boot as this is 181 * generally easily constrained later if needed. We enable the config 182 * options that give us information in the environment about what board 183 * we are on so we do not need to rely on the command prompt. We set a 184 * console baudrate of 115200 and use the default baud rate table. 185 */ 186 #define CONFIG_SYS_MALLOC_LEN SZ_32M 187 #define CONFIG_BAUDRATE 115200 188 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 189 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 190 191 /* As stated above, the following choices are optional. */ 192 #define CONFIG_SYS_LONGHELP 193 #define CONFIG_AUTO_COMPLETE 194 #define CONFIG_CMDLINE_EDITING 195 196 /* We set the max number of command args high to avoid HUSH bugs. */ 197 #define CONFIG_SYS_MAXARGS 64 198 199 /* Console I/O Buffer Size */ 200 #define CONFIG_SYS_CBSIZE 1024 201 /* Print Buffer Size */ 202 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 203 + sizeof(CONFIG_SYS_PROMPT) + 16) 204 /* Boot Argument Buffer Size */ 205 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 206 207 /* 208 * When we have SPI, NOR or NAND flash we expect to be making use of 209 * mtdparts, both for ease of use in U-Boot and for passing information 210 * on to the Linux kernel. 211 */ 212 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 213 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 214 #define CONFIG_CMD_MTDPARTS 215 #endif 216 217 #define CONFIG_SUPPORT_RAW_INITRD 218 219 /* 220 * Common filesystems support. When we have removable storage we 221 * enabled a number of useful commands and support. 222 */ 223 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 224 #define CONFIG_FAT_WRITE 225 #endif 226 227 /* 228 * Our platforms make use of SPL to initalize the hardware (primarily 229 * memory) enough for full U-Boot to be loaded. We make use of the general 230 * SPL framework found under common/spl/. Given our generally common memory 231 * map, we set a number of related defaults and sizes here. 232 */ 233 #if !defined(CONFIG_NOR_BOOT) && \ 234 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 235 #define CONFIG_SPL_FRAMEWORK 236 237 /* 238 * We also support Falcon Mode so that the Linux kernel can be booted 239 * directly from SPL. This is not currently available on HS devices. 240 */ 241 242 /* 243 * Place the image at the start of the ROM defined image space (per 244 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 245 * downloaded image area minus 1KiB for scratch space. We initalize DRAM as 246 * soon as we can so that we can place stack, malloc and BSS there. We load 247 * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict 248 * with older SPLs). We have our BSS be placed 2MiB after this, to allow for 249 * the default Linux kernel address of 0x80008000 to work with most sized 250 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end 251 * of the BSS area. We suggest that the stack be placed at 32MiB after the 252 * start of DRAM to allow room for all of the above (handled in Kconfig). 253 */ 254 #ifndef CONFIG_SYS_TEXT_BASE 255 #define CONFIG_SYS_TEXT_BASE 0x80800000 256 #endif 257 #ifndef CONFIG_SPL_BSS_START_ADDR 258 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 259 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 260 #endif 261 #ifndef CONFIG_SYS_SPL_MALLOC_START 262 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 263 CONFIG_SPL_BSS_MAX_SIZE) 264 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M 265 #endif 266 #ifndef CONFIG_SPL_MAX_SIZE 267 #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \ 268 CONFIG_SPL_TEXT_BASE) 269 #endif 270 271 272 /* FAT sd card locations. */ 273 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 274 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 275 276 #ifdef CONFIG_SPL_OS_BOOT 277 /* FAT */ 278 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 279 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 280 281 /* RAW SD card / eMMC */ 282 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 283 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 284 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 285 286 /* spl export command */ 287 #define CONFIG_CMD_SPL 288 #endif 289 290 #define CONFIG_SYS_THUMB_BUILD 291 292 /* General parts of the framework, required. */ 293 #define CONFIG_SPL_BOARD_INIT 294 295 #ifdef CONFIG_NAND 296 #define CONFIG_SPL_NAND_BASE 297 #define CONFIG_SPL_NAND_DRIVERS 298 #define CONFIG_SPL_NAND_ECC 299 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 300 #endif 301 #endif /* !CONFIG_NOR_BOOT */ 302 303 /* Generic Environment Variables */ 304 305 #ifdef CONFIG_CMD_NET 306 #define NETARGS \ 307 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 308 "::off\0" \ 309 "nfsopts=nolock\0" \ 310 "rootpath=/export/rootfs\0" \ 311 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 312 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 313 "netargs=setenv bootargs console=${console} " \ 314 "${optargs} " \ 315 "root=/dev/nfs " \ 316 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 317 "ip=dhcp\0" \ 318 "netboot=echo Booting from network ...; " \ 319 "setenv autoload no; " \ 320 "dhcp; " \ 321 "run netloadimage; " \ 322 "run netloadfdt; " \ 323 "run netargs; " \ 324 "bootz ${loadaddr} - ${fdtaddr}\0" 325 #else 326 #define NETARGS "" 327 #endif 328 329 #include <config_distro_defaults.h> 330 331 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 332