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