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