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 /* McSPI IP block */ 170 #define CONFIG_SPI 171 172 /* GPIO block */ 173 174 /* 175 * The following are general good-enough settings for U-Boot. We set a 176 * large malloc pool as we generally have a lot of DDR, and we opt for 177 * function over binary size in the main portion of U-Boot as this is 178 * generally easily constrained later if needed. We enable the config 179 * options that give us information in the environment about what board 180 * we are on so we do not need to rely on the command prompt. We set a 181 * console baudrate of 115200 and use the default baud rate table. 182 */ 183 #define CONFIG_SYS_MALLOC_LEN SZ_32M 184 #define CONFIG_BAUDRATE 115200 185 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 186 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 187 188 /* As stated above, the following choices are optional. */ 189 #define CONFIG_SYS_LONGHELP 190 #define CONFIG_AUTO_COMPLETE 191 #define CONFIG_CMDLINE_EDITING 192 193 /* We set the max number of command args high to avoid HUSH bugs. */ 194 #define CONFIG_SYS_MAXARGS 64 195 196 /* Console I/O Buffer Size */ 197 #define CONFIG_SYS_CBSIZE 1024 198 /* Print Buffer Size */ 199 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 200 + sizeof(CONFIG_SYS_PROMPT) + 16) 201 /* Boot Argument Buffer Size */ 202 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 203 204 /* 205 * When we have SPI, NOR or NAND flash we expect to be making use of 206 * mtdparts, both for ease of use in U-Boot and for passing information 207 * on to the Linux kernel. 208 */ 209 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 210 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 211 #define CONFIG_CMD_MTDPARTS 212 #endif 213 214 #define CONFIG_SUPPORT_RAW_INITRD 215 216 /* 217 * Common filesystems support. When we have removable storage we 218 * enabled a number of useful commands and support. 219 */ 220 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 221 #define CONFIG_FAT_WRITE 222 #endif 223 224 /* 225 * Our platforms make use of SPL to initalize the hardware (primarily 226 * memory) enough for full U-Boot to be loaded. We make use of the general 227 * SPL framework found under common/spl/. Given our generally common memory 228 * map, we set a number of related defaults and sizes here. 229 */ 230 #if !defined(CONFIG_NOR_BOOT) && \ 231 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 232 #define CONFIG_SPL_FRAMEWORK 233 234 /* 235 * We also support Falcon Mode so that the Linux kernel can be booted 236 * directly from SPL. This is not currently available on HS devices. 237 */ 238 239 /* 240 * Place the image at the start of the ROM defined image space (per 241 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 242 * downloaded image area minus 1KiB for scratch space. We initalize DRAM as 243 * soon as we can so that we can place stack, malloc and BSS there. We load 244 * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict 245 * with older SPLs). We have our BSS be placed 2MiB after this, to allow for 246 * the default Linux kernel address of 0x80008000 to work with most sized 247 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end 248 * of the BSS area. We suggest that the stack be placed at 32MiB after the 249 * start of DRAM to allow room for all of the above (handled in Kconfig). 250 */ 251 #ifndef CONFIG_SYS_TEXT_BASE 252 #define CONFIG_SYS_TEXT_BASE 0x80800000 253 #endif 254 #ifndef CONFIG_SPL_BSS_START_ADDR 255 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 256 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 257 #endif 258 #ifndef CONFIG_SYS_SPL_MALLOC_START 259 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 260 CONFIG_SPL_BSS_MAX_SIZE) 261 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M 262 #endif 263 #ifndef CONFIG_SPL_MAX_SIZE 264 #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \ 265 CONFIG_SPL_TEXT_BASE) 266 #endif 267 268 269 /* FAT sd card locations. */ 270 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 271 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 272 273 #ifdef CONFIG_SPL_OS_BOOT 274 /* FAT */ 275 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 276 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 277 278 /* RAW SD card / eMMC */ 279 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 280 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 281 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 282 283 /* spl export command */ 284 #define CONFIG_CMD_SPL 285 #endif 286 287 #define CONFIG_SYS_THUMB_BUILD 288 289 /* General parts of the framework, required. */ 290 #define CONFIG_SPL_BOARD_INIT 291 292 #ifdef CONFIG_NAND 293 #define CONFIG_SPL_NAND_BASE 294 #define CONFIG_SPL_NAND_DRIVERS 295 #define CONFIG_SPL_NAND_ECC 296 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 297 #endif 298 #endif /* !CONFIG_NOR_BOOT */ 299 300 /* Generic Environment Variables */ 301 302 #ifdef CONFIG_CMD_NET 303 #define NETARGS \ 304 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 305 "::off\0" \ 306 "nfsopts=nolock\0" \ 307 "rootpath=/export/rootfs\0" \ 308 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 309 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 310 "netargs=setenv bootargs console=${console} " \ 311 "${optargs} " \ 312 "root=/dev/nfs " \ 313 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 314 "ip=dhcp\0" \ 315 "netboot=echo Booting from network ...; " \ 316 "setenv autoload no; " \ 317 "dhcp; " \ 318 "run netloadimage; " \ 319 "run netloadfdt; " \ 320 "run netargs; " \ 321 "bootz ${loadaddr} - ${fdtaddr}\0" 322 #else 323 #define NETARGS "" 324 #endif 325 326 #include <config_distro_defaults.h> 327 328 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 329