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 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 71 * we say (for simplicity) that we have 1 bank, always, even when 72 * we have more. We always start at 0x80000000, and we place the 73 * initial stack pointer in our SRAM. Otherwise, we can define 74 * CONFIG_NR_DRAM_BANKS before including this file. 75 */ 76 #ifndef CONFIG_NR_DRAM_BANKS 77 #define CONFIG_NR_DRAM_BANKS 1 78 #endif 79 #define CONFIG_SYS_SDRAM_BASE 0x80000000 80 81 #ifndef CONFIG_SYS_INIT_SP_ADDR 82 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 83 GENERATED_GBL_DATA_SIZE) 84 #endif 85 86 /* Timer information. */ 87 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 88 89 /* I2C IP block */ 90 #define CONFIG_I2C 91 #define CONFIG_CMD_I2C 92 #define CONFIG_SYS_I2C 93 94 /* MMC/SD IP block */ 95 #define CONFIG_MMC 96 #define CONFIG_GENERIC_MMC 97 #define CONFIG_CMD_MMC 98 99 /* McSPI IP block */ 100 #define CONFIG_SPI 101 #define CONFIG_CMD_SPI 102 103 /* GPIO block */ 104 #define CONFIG_CMD_GPIO 105 106 /* 107 * The following are general good-enough settings for U-Boot. We set a 108 * large malloc pool as we generally have a lot of DDR, and we opt for 109 * function over binary size in the main portion of U-Boot as this is 110 * generally easily constrained later if needed. We enable the config 111 * options that give us information in the environment about what board 112 * we are on so we do not need to rely on the command prompt. We set a 113 * console baudrate of 115200 and use the default baud rate table. 114 */ 115 #ifdef CONFIG_DFU_MMC 116 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE) 117 #else 118 #define CONFIG_SYS_MALLOC_LEN (16 << 20) 119 #endif 120 #define CONFIG_SYS_HUSH_PARSER 121 #define CONFIG_SYS_CONSOLE_INFO_QUIET 122 #define CONFIG_BAUDRATE 115200 123 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 124 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 125 126 /* As stated above, the following choices are optional. */ 127 #define CONFIG_SYS_LONGHELP 128 #define CONFIG_AUTO_COMPLETE 129 #define CONFIG_CMDLINE_EDITING 130 #define CONFIG_VERSION_VARIABLE 131 132 /* We set the max number of command args high to avoid HUSH bugs. */ 133 #define CONFIG_SYS_MAXARGS 64 134 135 /* Console I/O Buffer Size */ 136 #define CONFIG_SYS_CBSIZE 512 137 /* Print Buffer Size */ 138 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 139 + sizeof(CONFIG_SYS_PROMPT) + 16) 140 /* Boot Argument Buffer Size */ 141 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 142 143 /* 144 * When we have SPI, NOR or NAND flash we expect to be making use of 145 * mtdparts, both for ease of use in U-Boot and for passing information 146 * on to the Linux kernel. 147 */ 148 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI) 149 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 150 #define CONFIG_CMD_MTDPARTS 151 #endif 152 153 #define CONFIG_CMD_ASKENV 154 #define CONFIG_CMD_BOOTZ 155 #define CONFIG_SUPPORT_RAW_INITRD 156 157 /* 158 * Common filesystems support. When we have removable storage we 159 * enabled a number of useful commands and support. 160 */ 161 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 162 #define CONFIG_DOS_PARTITION 163 #define CONFIG_CMD_FAT 164 #define CONFIG_FAT_WRITE 165 #define CONFIG_CMD_EXT2 166 #define CONFIG_CMD_EXT4 167 #define CONFIG_CMD_FS_GENERIC 168 #define CONFIG_PARTITION_UUIDS 169 #define CONFIG_CMD_PART 170 #endif 171 172 /* 173 * Our platforms make use of SPL to initalize the hardware (primarily 174 * memory) enough for full U-Boot to be loaded. We also support Falcon 175 * Mode so that the Linux kernel can be booted directly from SPL 176 * instead, if desired. We make use of the general SPL framework found 177 * under common/spl/. Given our generally common memory map, we set a 178 * number of related defaults and sizes here. 179 */ 180 #if !defined(CONFIG_NOR_BOOT) && \ 181 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 182 #define CONFIG_SPL_FRAMEWORK 183 #define CONFIG_SPL_OS_BOOT 184 185 /* 186 * Place the image at the start of the ROM defined image space (per 187 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 188 * downloaded image area. We initalize DRAM as soon as we can so that 189 * we can place stack, malloc and BSS there. We load U-Boot itself into 190 * memory at 0x80800000 for legacy reasons (to not conflict with older 191 * SPLs). We have our BSS be placed 2MiB after this, to allow for the 192 * default Linux kernel address of 0x80008000 to work with most sized 193 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the 194 * end of the BSS area. We suggest that the stack be placed at 32MiB after 195 * the start of DRAM to allow room for all of the above (handled in Kconfig). 196 */ 197 #ifndef CONFIG_SYS_TEXT_BASE 198 #define CONFIG_SYS_TEXT_BASE 0x80800000 199 #endif 200 #ifndef CONFIG_SPL_BSS_START_ADDR 201 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 202 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 203 #endif 204 #ifndef CONFIG_SYS_SPL_MALLOC_START 205 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 206 CONFIG_SPL_BSS_MAX_SIZE) 207 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 208 #endif 209 210 /* RAW SD card / eMMC locations. */ 211 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 212 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 213 214 /* FAT sd card locations. */ 215 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 216 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 217 218 #ifdef CONFIG_SPL_OS_BOOT 219 /* FAT */ 220 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 221 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 222 223 /* RAW SD card / eMMC */ 224 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 225 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 226 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 227 228 /* spl export command */ 229 #define CONFIG_CMD_SPL 230 #endif 231 232 #ifdef CONFIG_MMC 233 #define CONFIG_SPL_LIBDISK_SUPPORT 234 #define CONFIG_SPL_MMC_SUPPORT 235 #define CONFIG_SPL_FAT_SUPPORT 236 #define CONFIG_SPL_EXT_SUPPORT 237 #endif 238 239 #define CONFIG_SYS_THUMB_BUILD 240 241 /* General parts of the framework, required. */ 242 #define CONFIG_SPL_I2C_SUPPORT 243 #define CONFIG_SPL_LIBCOMMON_SUPPORT 244 #define CONFIG_SPL_LIBGENERIC_SUPPORT 245 #define CONFIG_SPL_SERIAL_SUPPORT 246 #define CONFIG_SPL_POWER_SUPPORT 247 #define CONFIG_SPL_GPIO_SUPPORT 248 #define CONFIG_SPL_BOARD_INIT 249 250 #ifdef CONFIG_NAND 251 #define CONFIG_SPL_NAND_SUPPORT 252 #define CONFIG_SPL_NAND_BASE 253 #define CONFIG_SPL_NAND_DRIVERS 254 #define CONFIG_SPL_NAND_ECC 255 #define CONFIG_SPL_MTD_SUPPORT 256 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 257 #endif 258 #endif /* !CONFIG_NOR_BOOT */ 259 260 /* Generic Environment Variables */ 261 262 #ifdef CONFIG_CMD_NET 263 #define NETARGS \ 264 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 265 "::off\0" \ 266 "nfsopts=nolock\0" \ 267 "rootpath=/export/rootfs\0" \ 268 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 269 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 270 "netargs=setenv bootargs console=${console} " \ 271 "${optargs} " \ 272 "root=/dev/nfs " \ 273 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 274 "ip=dhcp\0" \ 275 "netboot=echo Booting from network ...; " \ 276 "setenv autoload no; " \ 277 "dhcp; " \ 278 "run netloadimage; " \ 279 "run netloadfdt; " \ 280 "run netargs; " \ 281 "bootz ${loadaddr} - ${fdtaddr}\0" 282 #else 283 #define NETARGS "" 284 #endif 285 286 #include <config_distro_defaults.h> 287 288 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 289