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 /* Common define for many platforms. */ 21 #define CONFIG_SYS_GENERIC_BOARD 22 23 /* 24 * We typically do not contain NOR flash. In the cases where we do, we 25 * undefine this later. 26 */ 27 #define CONFIG_SYS_NO_FLASH 28 29 /* Support both device trees and ATAGs. */ 30 #define CONFIG_OF_LIBFDT 31 #define CONFIG_CMDLINE_TAG 32 #define CONFIG_SETUP_MEMORY_TAGS 33 #define CONFIG_INITRD_TAG 34 35 /* 36 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 37 * relocated itself to higher in memory by the time this value is used. 38 * However, set this to a 32MB offset to allow for easier Linux kernel 39 * booting as the default is often used as the kernel load address. 40 */ 41 #define CONFIG_SYS_LOAD_ADDR 0x82000000 42 43 /* 44 * We setup defaults based on constraints from the Linux kernel, which should 45 * also be safe elsewhere. We have the default load at 32MB into DDR (for 46 * the kernel), FDT above 128MB (the maximum location for the end of the 47 * kernel), and the ramdisk 512KB above that (allowing for hopefully never 48 * seen large trees). We say all of this must be within the first 256MB 49 * as that will normally be within the kernel lowmem and thus visible via 50 * bootm_size and we only run on platforms with 256MB or more of memory. 51 */ 52 #define DEFAULT_LINUX_BOOT_ENV \ 53 "loadaddr=0x82000000\0" \ 54 "kernel_addr_r=0x82000000\0" \ 55 "fdtaddr=0x88000000\0" \ 56 "fdt_addr_r=0x88000000\0" \ 57 "rdaddr=0x88080000\0" \ 58 "ramdisk_addr_r=0x88080000\0" \ 59 "scriptaddr=0x80000000\0" \ 60 "pxefile_addr_r=0x80100000\0" \ 61 "bootm_size=0x10000000\0" 62 63 #define DEFAULT_MMC_TI_ARGS \ 64 "mmcdev=0\0" \ 65 "mmcrootfstype=ext4 rootwait\0" \ 66 "finduuid=part uuid mmc 0:2 uuid\0" \ 67 "args_mmc=run finduuid;setenv bootargs console=${console} " \ 68 "${optargs} " \ 69 "root=PARTUUID=${uuid} rw " \ 70 "rootfstype=${mmcrootfstype}\0" 71 72 /* 73 * Default to a quick boot delay. 74 */ 75 #define CONFIG_BOOTDELAY 1 76 77 /* 78 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 79 * we say (for simplicity) that we have 1 bank, always, even when 80 * we have more. We always start at 0x80000000, and we place the 81 * initial stack pointer in our SRAM. Otherwise, we can define 82 * CONFIG_NR_DRAM_BANKS before including this file. 83 */ 84 #ifndef CONFIG_NR_DRAM_BANKS 85 #define CONFIG_NR_DRAM_BANKS 1 86 #endif 87 #define CONFIG_SYS_SDRAM_BASE 0x80000000 88 89 #ifndef CONFIG_SYS_INIT_SP_ADDR 90 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 91 GENERATED_GBL_DATA_SIZE) 92 #endif 93 94 /* Timer information. */ 95 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 96 97 /* I2C IP block */ 98 #define CONFIG_I2C 99 #define CONFIG_CMD_I2C 100 #define CONFIG_SYS_I2C 101 102 /* MMC/SD IP block */ 103 #define CONFIG_MMC 104 #define CONFIG_GENERIC_MMC 105 #define CONFIG_CMD_MMC 106 107 /* McSPI IP block */ 108 #define CONFIG_SPI 109 #define CONFIG_CMD_SPI 110 111 /* GPIO block */ 112 #define CONFIG_CMD_GPIO 113 114 /* 115 * The following are general good-enough settings for U-Boot. We set a 116 * large malloc pool as we generally have a lot of DDR, and we opt for 117 * function over binary size in the main portion of U-Boot as this is 118 * generally easily constrained later if needed. We enable the config 119 * options that give us information in the environment about what board 120 * we are on so we do not need to rely on the command prompt. We set a 121 * console baudrate of 115200 and use the default baud rate table. 122 */ 123 #ifdef CONFIG_DFU_MMC 124 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE) 125 #else 126 #define CONFIG_SYS_MALLOC_LEN (16 << 20) 127 #endif 128 #define CONFIG_SYS_HUSH_PARSER 129 #define CONFIG_SYS_CONSOLE_INFO_QUIET 130 #define CONFIG_BAUDRATE 115200 131 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 132 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 133 134 /* As stated above, the following choices are optional. */ 135 #define CONFIG_SYS_LONGHELP 136 #define CONFIG_AUTO_COMPLETE 137 #define CONFIG_CMDLINE_EDITING 138 #define CONFIG_VERSION_VARIABLE 139 140 /* We set the max number of command args high to avoid HUSH bugs. */ 141 #define CONFIG_SYS_MAXARGS 64 142 143 /* Console I/O Buffer Size */ 144 #define CONFIG_SYS_CBSIZE 512 145 /* Print Buffer Size */ 146 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 147 + sizeof(CONFIG_SYS_PROMPT) + 16) 148 /* Boot Argument Buffer Size */ 149 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 150 151 /* 152 * When we have SPI, NOR or NAND flash we expect to be making use of 153 * mtdparts, both for ease of use in U-Boot and for passing information 154 * on to the Linux kernel. 155 */ 156 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 157 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 158 #define CONFIG_CMD_MTDPARTS 159 #endif 160 161 #define CONFIG_CMD_ASKENV 162 #define CONFIG_CMD_BOOTZ 163 #define CONFIG_SUPPORT_RAW_INITRD 164 165 /* 166 * Common filesystems support. When we have removable storage we 167 * enabled a number of useful commands and support. 168 */ 169 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 170 #define CONFIG_DOS_PARTITION 171 #define CONFIG_CMD_FAT 172 #define CONFIG_FAT_WRITE 173 #define CONFIG_CMD_EXT2 174 #define CONFIG_CMD_EXT4 175 #define CONFIG_CMD_FS_GENERIC 176 #define CONFIG_PARTITION_UUIDS 177 #define CONFIG_CMD_PART 178 #endif 179 180 /* 181 * Our platforms make use of SPL to initalize the hardware (primarily 182 * memory) enough for full U-Boot to be loaded. We also support Falcon 183 * Mode so that the Linux kernel can be booted directly from SPL 184 * instead, if desired. We make use of the general SPL framework found 185 * under common/spl/. Given our generally common memory map, we set a 186 * number of related defaults and sizes here. 187 */ 188 #if !defined(CONFIG_NOR_BOOT) && \ 189 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 190 #define CONFIG_SPL_FRAMEWORK 191 #define CONFIG_SPL_OS_BOOT 192 193 /* 194 * Place the image at the start of the ROM defined image space (per 195 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 196 * downloaded image area. We initalize DRAM as soon as we can so that 197 * we can place stack, malloc and BSS there. We load U-Boot itself into 198 * memory at 0x80800000 for legacy reasons (to not conflict with older 199 * SPLs). We have our BSS be placed 2MiB after this, to allow for the 200 * default Linux kernel address of 0x80008000 to work with most sized 201 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the 202 * end of the BSS area. We suggest that the stack be placed at 32MiB after 203 * the start of DRAM to allow room for all of the above (handled in Kconfig). 204 */ 205 #ifndef CONFIG_SYS_TEXT_BASE 206 #define CONFIG_SYS_TEXT_BASE 0x80800000 207 #endif 208 #ifndef CONFIG_SPL_BSS_START_ADDR 209 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 210 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 211 #endif 212 #ifndef CONFIG_SYS_SPL_MALLOC_START 213 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 214 CONFIG_SPL_BSS_MAX_SIZE) 215 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 216 #endif 217 218 /* RAW SD card / eMMC locations. */ 219 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 220 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 221 222 /* FAT sd card locations. */ 223 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 224 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 225 226 #ifdef CONFIG_SPL_OS_BOOT 227 /* FAT */ 228 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 229 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 230 231 /* RAW SD card / eMMC */ 232 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 233 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 234 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 235 236 /* spl export command */ 237 #define CONFIG_CMD_SPL 238 #endif 239 240 #ifdef CONFIG_MMC 241 #define CONFIG_SPL_LIBDISK_SUPPORT 242 #define CONFIG_SPL_MMC_SUPPORT 243 #define CONFIG_SPL_FAT_SUPPORT 244 #define CONFIG_SPL_EXT_SUPPORT 245 #endif 246 247 #define CONFIG_SYS_THUMB_BUILD 248 249 /* General parts of the framework, required. */ 250 #define CONFIG_SPL_I2C_SUPPORT 251 #define CONFIG_SPL_LIBCOMMON_SUPPORT 252 #define CONFIG_SPL_LIBGENERIC_SUPPORT 253 #define CONFIG_SPL_SERIAL_SUPPORT 254 #define CONFIG_SPL_POWER_SUPPORT 255 #define CONFIG_SPL_GPIO_SUPPORT 256 #define CONFIG_SPL_BOARD_INIT 257 258 #ifdef CONFIG_NAND 259 #define CONFIG_SPL_NAND_SUPPORT 260 #define CONFIG_SPL_NAND_BASE 261 #define CONFIG_SPL_NAND_DRIVERS 262 #define CONFIG_SPL_NAND_ECC 263 #define CONFIG_SPL_MTD_SUPPORT 264 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 265 #endif 266 #endif /* !CONFIG_NOR_BOOT */ 267 268 /* Generic Environment Variables */ 269 270 #ifdef CONFIG_CMD_NET 271 #define NETARGS \ 272 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 273 "::off\0" \ 274 "nfsopts=nolock\0" \ 275 "rootpath=/export/rootfs\0" \ 276 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 277 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 278 "netargs=setenv bootargs console=${console} " \ 279 "${optargs} " \ 280 "root=/dev/nfs " \ 281 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 282 "ip=dhcp\0" \ 283 "netboot=echo Booting from network ...; " \ 284 "setenv autoload no; " \ 285 "dhcp; " \ 286 "run netloadimage; " \ 287 "run netloadfdt; " \ 288 "run netargs; " \ 289 "bootz ${loadaddr} - ${fdtaddr}\0" 290 #else 291 #define NETARGS "" 292 #endif 293 294 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 295