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 /* Support both device trees and ATAGs. */ 21 #define CONFIG_CMDLINE_TAG 22 #define CONFIG_SETUP_MEMORY_TAGS 23 #define CONFIG_INITRD_TAG 24 25 /* 26 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 27 * relocated itself to higher in memory by the time this value is used. 28 * However, set this to a 32MB offset to allow for easier Linux kernel 29 * booting as the default is often used as the kernel load address. 30 */ 31 #define CONFIG_SYS_LOAD_ADDR 0x82000000 32 33 /* 34 * We setup defaults based on constraints from the Linux kernel, which should 35 * also be safe elsewhere. We have the default load at 32MB into DDR (for 36 * the kernel), FDT above 128MB (the maximum location for the end of the 37 * kernel), and the ramdisk 512KB above that (allowing for hopefully never 38 * seen large trees). We say all of this must be within the first 256MB 39 * as that will normally be within the kernel lowmem and thus visible via 40 * bootm_size and we only run on platforms with 256MB or more of memory. 41 */ 42 #define DEFAULT_LINUX_BOOT_ENV \ 43 "loadaddr=0x82000000\0" \ 44 "kernel_addr_r=0x82000000\0" \ 45 "fdtaddr=0x88000000\0" \ 46 "fdt_addr_r=0x88000000\0" \ 47 "rdaddr=0x88080000\0" \ 48 "ramdisk_addr_r=0x88080000\0" \ 49 "scriptaddr=0x80000000\0" \ 50 "pxefile_addr_r=0x80100000\0" \ 51 "bootm_size=0x10000000\0" \ 52 "boot_fdt=try\0" 53 54 #define DEFAULT_MMC_TI_ARGS \ 55 "mmcdev=0\0" \ 56 "mmcrootfstype=ext4 rootwait\0" \ 57 "finduuid=part uuid mmc ${bootpart} uuid\0" \ 58 "args_mmc=run finduuid;setenv bootargs console=${console} " \ 59 "${optargs} " \ 60 "root=PARTUUID=${uuid} rw " \ 61 "rootfstype=${mmcrootfstype}\0" \ 62 "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \ 63 "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \ 64 "source ${loadaddr}\0" \ 65 "bootenvfile=uEnv.txt\0" \ 66 "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \ 67 "env import -t ${loadaddr} ${filesize}\0" \ 68 "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \ 69 "loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \ 70 "loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \ 71 "envboot=mmc dev ${mmcdev}; " \ 72 "if mmc rescan; then " \ 73 "echo SD/MMC found on device ${mmcdev};" \ 74 "if run loadbootscript; then " \ 75 "run bootscript;" \ 76 "else " \ 77 "if run loadbootenv; then " \ 78 "echo Loaded env from ${bootenvfile};" \ 79 "run importbootenv;" \ 80 "fi;" \ 81 "if test -n $uenvcmd; then " \ 82 "echo Running uenvcmd ...;" \ 83 "run uenvcmd;" \ 84 "fi;" \ 85 "fi;" \ 86 "fi;\0" \ 87 "mmcloados=run args_mmc; " \ 88 "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ 89 "if run loadfdt; then " \ 90 "bootz ${loadaddr} - ${fdtaddr}; " \ 91 "else " \ 92 "if test ${boot_fdt} = try; then " \ 93 "bootz; " \ 94 "else " \ 95 "echo WARN: Cannot load the DT; " \ 96 "fi; " \ 97 "fi; " \ 98 "else " \ 99 "bootz; " \ 100 "fi;\0" \ 101 "mmcboot=mmc dev ${mmcdev}; " \ 102 "setenv devnum ${mmcdev}; " \ 103 "setenv devtype mmc; " \ 104 "if mmc rescan; then " \ 105 "echo SD/MMC found on device ${mmcdev};" \ 106 "if run loadimage; then " \ 107 "if test ${boot_fit} -eq 1; then " \ 108 "run loadfit; " \ 109 "else " \ 110 "run mmcloados;" \ 111 "fi;" \ 112 "fi;" \ 113 "fi;\0" \ 114 115 #define DEFAULT_FIT_TI_ARGS \ 116 "boot_fit=0\0" \ 117 "fit_loadaddr=0x88000000\0" \ 118 "fit_bootfile=fitImage.itb\0" \ 119 "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \ 120 "args_fit=setenv bootargs console=${console} \0" \ 121 "loadfit=run args_fit; bootm ${loadaddr}#${fdtfile};\0" \ 122 123 /* 124 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 125 * we say (for simplicity) that we have 1 bank, always, even when 126 * we have more. We always start at 0x80000000, and we place the 127 * initial stack pointer in our SRAM. Otherwise, we can define 128 * CONFIG_NR_DRAM_BANKS before including this file. 129 */ 130 #ifndef CONFIG_NR_DRAM_BANKS 131 #define CONFIG_NR_DRAM_BANKS 1 132 #endif 133 #define CONFIG_SYS_SDRAM_BASE 0x80000000 134 135 #ifndef CONFIG_SYS_INIT_SP_ADDR 136 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 137 GENERATED_GBL_DATA_SIZE) 138 #endif 139 140 /* Timer information. */ 141 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 142 143 /* 144 * Disable DM_* for SPL build and can be re-enabled after adding 145 * DM support in SPL 146 */ 147 #ifdef CONFIG_SPL_BUILD 148 #undef CONFIG_DM_I2C 149 #endif 150 151 /* I2C IP block */ 152 #define CONFIG_I2C 153 #ifndef CONFIG_DM_I2C 154 #define CONFIG_SYS_I2C 155 #else 156 /* 157 * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client 158 * devices are adopted to DM 159 */ 160 #define CONFIG_DM_I2C_COMPAT 161 #endif 162 163 /* McSPI IP block */ 164 #define CONFIG_SPI 165 166 /* GPIO block */ 167 168 /* 169 * The following are general good-enough settings for U-Boot. We set a 170 * large malloc pool as we generally have a lot of DDR, and we opt for 171 * function over binary size in the main portion of U-Boot as this is 172 * generally easily constrained later if needed. We enable the config 173 * options that give us information in the environment about what board 174 * we are on so we do not need to rely on the command prompt. We set a 175 * console baudrate of 115200 and use the default baud rate table. 176 */ 177 #define CONFIG_SYS_MALLOC_LEN SZ_32M 178 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 179 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 180 181 /* As stated above, the following choices are optional. */ 182 #define CONFIG_SYS_LONGHELP 183 #define CONFIG_AUTO_COMPLETE 184 #define CONFIG_CMDLINE_EDITING 185 186 /* We set the max number of command args high to avoid HUSH bugs. */ 187 #define CONFIG_SYS_MAXARGS 64 188 189 /* Console I/O Buffer Size */ 190 #define CONFIG_SYS_CBSIZE 1024 191 /* Print Buffer Size */ 192 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 193 + sizeof(CONFIG_SYS_PROMPT) + 16) 194 /* Boot Argument Buffer Size */ 195 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 196 197 /* 198 * When we have SPI, NOR or NAND flash we expect to be making use of 199 * mtdparts, both for ease of use in U-Boot and for passing information 200 * on to the Linux kernel. 201 */ 202 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 203 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 204 #define CONFIG_CMD_MTDPARTS 205 #endif 206 207 #define CONFIG_SUPPORT_RAW_INITRD 208 209 /* 210 * Common filesystems support. When we have removable storage we 211 * enabled a number of useful commands and support. 212 */ 213 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 214 #define CONFIG_FAT_WRITE 215 #endif 216 217 /* 218 * Our platforms make use of SPL to initalize the hardware (primarily 219 * memory) enough for full U-Boot to be loaded. We make use of the general 220 * SPL framework found under common/spl/. Given our generally common memory 221 * map, we set a number of related defaults and sizes here. 222 */ 223 #if !defined(CONFIG_NOR_BOOT) && \ 224 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 225 #define CONFIG_SPL_FRAMEWORK 226 227 /* 228 * We also support Falcon Mode so that the Linux kernel can be booted 229 * directly from SPL. This is not currently available on HS devices. 230 */ 231 232 /* 233 * Place the image at the start of the ROM defined image space (per 234 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 235 * downloaded image area minus 1KiB for scratch space. We initalize DRAM as 236 * soon as we can so that we can place stack, malloc and BSS there. We load 237 * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict 238 * with older SPLs). We have our BSS be placed 2MiB after this, to allow for 239 * the default Linux kernel address of 0x80008000 to work with most sized 240 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end 241 * of the BSS area. We suggest that the stack be placed at 32MiB after the 242 * start of DRAM to allow room for all of the above (handled in Kconfig). 243 */ 244 #ifndef CONFIG_SYS_TEXT_BASE 245 #define CONFIG_SYS_TEXT_BASE 0x80800000 246 #endif 247 #ifndef CONFIG_SPL_BSS_START_ADDR 248 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 249 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 250 #endif 251 #ifndef CONFIG_SYS_SPL_MALLOC_START 252 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 253 CONFIG_SPL_BSS_MAX_SIZE) 254 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M 255 #endif 256 #ifndef CONFIG_SPL_MAX_SIZE 257 #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \ 258 CONFIG_SPL_TEXT_BASE) 259 #endif 260 261 262 /* FAT sd card locations. */ 263 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 264 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 265 266 #ifdef CONFIG_SPL_OS_BOOT 267 /* FAT */ 268 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 269 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 270 271 /* RAW SD card / eMMC */ 272 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 273 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 274 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 275 276 /* spl export command */ 277 #define CONFIG_CMD_SPL 278 #endif 279 280 /* General parts of the framework, required. */ 281 #define CONFIG_SPL_BOARD_INIT 282 283 #ifdef CONFIG_NAND 284 #define CONFIG_SPL_NAND_BASE 285 #define CONFIG_SPL_NAND_DRIVERS 286 #define CONFIG_SPL_NAND_ECC 287 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 288 #endif 289 #endif /* !CONFIG_NOR_BOOT */ 290 291 /* Generic Environment Variables */ 292 293 #ifdef CONFIG_CMD_NET 294 #define NETARGS \ 295 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 296 "::off\0" \ 297 "nfsopts=nolock\0" \ 298 "rootpath=/export/rootfs\0" \ 299 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 300 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 301 "netargs=setenv bootargs console=${console} " \ 302 "${optargs} " \ 303 "root=/dev/nfs " \ 304 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 305 "ip=dhcp\0" \ 306 "netboot=echo Booting from network ...; " \ 307 "setenv autoload no; " \ 308 "dhcp; " \ 309 "run netloadimage; " \ 310 "run netloadfdt; " \ 311 "run netargs; " \ 312 "bootz ${loadaddr} - ${fdtaddr}\0" 313 #else 314 #define NETARGS "" 315 #endif 316 317 #include <config_distro_defaults.h> 318 319 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 320