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 ${bootpart} uuid\0" \ 63 "args_mmc=run finduuid;setenv bootargs console=${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 /* 112 * Disable DM_* for SPL build and can be re-enabled after adding 113 * DM support in SPL 114 */ 115 #ifdef CONFIG_SPL_BUILD 116 #undef CONFIG_DM_I2C 117 #endif 118 119 /* I2C IP block */ 120 #define CONFIG_I2C 121 #ifndef CONFIG_DM_I2C 122 #define CONFIG_SYS_I2C 123 #else 124 /* 125 * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client 126 * devices are adopted to DM 127 */ 128 #define CONFIG_DM_I2C_COMPAT 129 #endif 130 131 /* MMC/SD IP block */ 132 #define CONFIG_MMC 133 #define CONFIG_GENERIC_MMC 134 135 /* McSPI IP block */ 136 #define CONFIG_SPI 137 138 /* GPIO block */ 139 140 /* 141 * The following are general good-enough settings for U-Boot. We set a 142 * large malloc pool as we generally have a lot of DDR, and we opt for 143 * function over binary size in the main portion of U-Boot as this is 144 * generally easily constrained later if needed. We enable the config 145 * options that give us information in the environment about what board 146 * we are on so we do not need to rely on the command prompt. We set a 147 * console baudrate of 115200 and use the default baud rate table. 148 */ 149 #define CONFIG_SYS_MALLOC_LEN SZ_32M 150 #define CONFIG_BAUDRATE 115200 151 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 152 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 153 154 /* As stated above, the following choices are optional. */ 155 #define CONFIG_SYS_LONGHELP 156 #define CONFIG_AUTO_COMPLETE 157 #define CONFIG_CMDLINE_EDITING 158 159 /* We set the max number of command args high to avoid HUSH bugs. */ 160 #define CONFIG_SYS_MAXARGS 64 161 162 /* Console I/O Buffer Size */ 163 #define CONFIG_SYS_CBSIZE 512 164 /* Print Buffer Size */ 165 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 166 + sizeof(CONFIG_SYS_PROMPT) + 16) 167 /* Boot Argument Buffer Size */ 168 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 169 170 /* 171 * When we have SPI, NOR or NAND flash we expect to be making use of 172 * mtdparts, both for ease of use in U-Boot and for passing information 173 * on to the Linux kernel. 174 */ 175 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 176 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 177 #define CONFIG_CMD_MTDPARTS 178 #endif 179 180 #define CONFIG_SUPPORT_RAW_INITRD 181 182 /* 183 * Common filesystems support. When we have removable storage we 184 * enabled a number of useful commands and support. 185 */ 186 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 187 #define CONFIG_DOS_PARTITION 188 #define CONFIG_FAT_WRITE 189 #define CONFIG_PARTITION_UUIDS 190 #define CONFIG_CMD_PART 191 #endif 192 193 /* 194 * Our platforms make use of SPL to initalize the hardware (primarily 195 * memory) enough for full U-Boot to be loaded. We make use of the general 196 * SPL framework found under common/spl/. Given our generally common memory 197 * map, we set a number of related defaults and sizes here. 198 */ 199 #if !defined(CONFIG_NOR_BOOT) && \ 200 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 201 #define CONFIG_SPL_FRAMEWORK 202 203 /* 204 * We also support Falcon Mode so that the Linux kernel can be booted 205 * directly from SPL. This is not currently available on HS devices. 206 */ 207 208 /* 209 * Place the image at the start of the ROM defined image space (per 210 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 211 * downloaded image area minus 1KiB for scratch space. We initalize DRAM as 212 * soon as we can so that we can place stack, malloc and BSS there. We load 213 * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict 214 * with older SPLs). We have our BSS be placed 2MiB after this, to allow for 215 * the default Linux kernel address of 0x80008000 to work with most sized 216 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end 217 * of the BSS area. We suggest that the stack be placed at 32MiB after the 218 * start of DRAM to allow room for all of the above (handled in Kconfig). 219 */ 220 #ifndef CONFIG_SYS_TEXT_BASE 221 #define CONFIG_SYS_TEXT_BASE 0x80800000 222 #endif 223 #ifndef CONFIG_SPL_BSS_START_ADDR 224 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 225 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 226 #endif 227 #ifndef CONFIG_SYS_SPL_MALLOC_START 228 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 229 CONFIG_SPL_BSS_MAX_SIZE) 230 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M 231 #endif 232 #ifndef CONFIG_SPL_MAX_SIZE 233 #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \ 234 CONFIG_SPL_TEXT_BASE) 235 #endif 236 237 238 /* RAW SD card / eMMC locations. */ 239 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 240 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 241 242 /* FAT sd card locations. */ 243 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 244 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 245 246 #ifdef CONFIG_SPL_OS_BOOT 247 /* FAT */ 248 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 249 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 250 251 /* RAW SD card / eMMC */ 252 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 253 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 254 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 255 256 /* spl export command */ 257 #define CONFIG_CMD_SPL 258 #endif 259 260 #define CONFIG_SYS_THUMB_BUILD 261 262 /* General parts of the framework, required. */ 263 #define CONFIG_SPL_BOARD_INIT 264 265 #ifdef CONFIG_NAND 266 #define CONFIG_SPL_NAND_BASE 267 #define CONFIG_SPL_NAND_DRIVERS 268 #define CONFIG_SPL_NAND_ECC 269 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 270 #endif 271 #endif /* !CONFIG_NOR_BOOT */ 272 273 /* Generic Environment Variables */ 274 275 #ifdef CONFIG_CMD_NET 276 #define NETARGS \ 277 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 278 "::off\0" \ 279 "nfsopts=nolock\0" \ 280 "rootpath=/export/rootfs\0" \ 281 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 282 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 283 "netargs=setenv bootargs console=${console} " \ 284 "${optargs} " \ 285 "root=/dev/nfs " \ 286 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 287 "ip=dhcp\0" \ 288 "netboot=echo Booting from network ...; " \ 289 "setenv autoload no; " \ 290 "dhcp; " \ 291 "run netloadimage; " \ 292 "run netloadfdt; " \ 293 "run netargs; " \ 294 "bootz ${loadaddr} - ${fdtaddr}\0" 295 #else 296 #define NETARGS "" 297 #endif 298 299 #include <config_distro_defaults.h> 300 301 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 302