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