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_OMAP 22 #define CONFIG_OMAP_COMMON 23 #define CONFIG_SYS_GENERIC_BOARD 24 25 /* 26 * We typically do not contain NOR flash. In the cases where we do, we 27 * undefine this later. 28 */ 29 #define CONFIG_SYS_NO_FLASH 30 31 /* Support both device trees and ATAGs. */ 32 #define CONFIG_OF_LIBFDT 33 #define CONFIG_CMDLINE_TAG 34 #define CONFIG_SETUP_MEMORY_TAGS 35 #define CONFIG_INITRD_TAG 36 37 /* 38 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 39 * relocated itself to higher in memory by the time this value is used. 40 * However, set this to a 32MB offset to allow for easier Linux kernel 41 * booting as the default is often used as the kernel load address. 42 */ 43 #define CONFIG_SYS_LOAD_ADDR 0x82000000 44 45 /* 46 * We setup defaults based on constraints from the Linux kernel, which should 47 * also be safe elsewhere. We have the default load at 32MB into DDR (for 48 * the kernel), FDT above 128MB (the maximum location for the end of the 49 * kernel), and the ramdisk 512KB above that (allowing for hopefully never 50 * seen large trees). We say all of this must be within the first 256MB 51 * as that will normally be within the kernel lowmem and thus visible via 52 * bootm_size and we only run on platforms with 256MB or more of memory. 53 */ 54 #define DEFAULT_LINUX_BOOT_ENV \ 55 "loadaddr=0x82000000\0" \ 56 "kernel_addr_r=0x82000000\0" \ 57 "fdtaddr=0x88000000\0" \ 58 "fdt_addr_r=0x88000000\0" \ 59 "rdaddr=0x88080000\0" \ 60 "ramdisk_addr_r=0x88080000\0" \ 61 "bootm_size=0x10000000\0" 62 63 /* 64 * Default to a quick boot delay. 65 */ 66 #define CONFIG_BOOTDELAY 1 67 68 /* 69 * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined, 70 * we say (for simplicity) that we have 1 bank, always, even when 71 * we have more. We always start at 0x80000000, and we place the 72 * initial stack pointer in our SRAM. Otherwise, we can define 73 * CONFIG_NR_DRAM_BANKS before including this file. 74 */ 75 #ifndef CONFIG_NR_DRAM_BANKS 76 #define CONFIG_NR_DRAM_BANKS 1 77 #endif 78 #define CONFIG_SYS_SDRAM_BASE 0x80000000 79 #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 80 GENERATED_GBL_DATA_SIZE) 81 82 /* Timer information. */ 83 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 84 85 /* I2C IP block */ 86 #define CONFIG_I2C 87 #define CONFIG_CMD_I2C 88 #define CONFIG_SYS_I2C 89 #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 90 #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 91 #define CONFIG_SYS_I2C_OMAP24XX 92 93 /* MMC/SD IP block */ 94 #define CONFIG_MMC 95 #define CONFIG_GENERIC_MMC 96 #define CONFIG_OMAP_HSMMC 97 #define CONFIG_CMD_MMC 98 99 /* McSPI IP block */ 100 #define CONFIG_SPI 101 #define CONFIG_OMAP3_SPI 102 #define CONFIG_CMD_SPI 103 104 /* GPIO block */ 105 #define CONFIG_OMAP_GPIO 106 #define CONFIG_CMD_GPIO 107 108 /* 109 * GPMC NAND block. We support 1 device and the physical address to 110 * access CS0 at is 0x8000000. 111 */ 112 #ifdef CONFIG_NAND 113 #define CONFIG_NAND_OMAP_GPMC 114 #ifndef CONFIG_SYS_NAND_BASE 115 #define CONFIG_SYS_NAND_BASE 0x8000000 116 #endif 117 #define CONFIG_SYS_MAX_NAND_DEVICE 1 118 #define CONFIG_CMD_NAND 119 #endif 120 121 /* 122 * The following are general good-enough settings for U-Boot. We set a 123 * large malloc pool as we generally have a lot of DDR, and we opt for 124 * function over binary size in the main portion of U-Boot as this is 125 * generally easily constrained later if needed. We enable the config 126 * options that give us information in the environment about what board 127 * we are on so we do not need to rely on the command prompt. We set a 128 * console baudrate of 115200 and use the default baud rate table. 129 */ 130 #ifdef CONFIG_DFU_MMC 131 #define CONFIG_SYS_MALLOC_LEN ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE) 132 #else 133 #define CONFIG_SYS_MALLOC_LEN (16 << 20) 134 #endif 135 #define CONFIG_SYS_HUSH_PARSER 136 #define CONFIG_SYS_PROMPT "U-Boot# " 137 #define CONFIG_SYS_CONSOLE_INFO_QUIET 138 #define CONFIG_BAUDRATE 115200 139 #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */ 140 #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ 141 142 /* As stated above, the following choices are optional. */ 143 #define CONFIG_SYS_LONGHELP 144 #define CONFIG_AUTO_COMPLETE 145 #define CONFIG_CMDLINE_EDITING 146 #define CONFIG_VERSION_VARIABLE 147 148 /* We set the max number of command args high to avoid HUSH bugs. */ 149 #define CONFIG_SYS_MAXARGS 64 150 151 /* Console I/O Buffer Size */ 152 #define CONFIG_SYS_CBSIZE 512 153 /* Print Buffer Size */ 154 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \ 155 + sizeof(CONFIG_SYS_PROMPT) + 16) 156 /* Boot Argument Buffer Size */ 157 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 158 159 /* 160 * When we have SPI, NOR or NAND flash we expect to be making use of 161 * mtdparts, both for ease of use in U-Boot and for passing information 162 * on to the Linux kernel. 163 */ 164 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) 165 #define CONFIG_MTD_DEVICE /* Required for mtdparts */ 166 #define CONFIG_CMD_MTDPARTS 167 #endif 168 169 #define CONFIG_CMD_ASKENV 170 #define CONFIG_CMD_BOOTZ 171 #define CONFIG_SUPPORT_RAW_INITRD 172 173 /* 174 * Common filesystems support. When we have removable storage we 175 * enabled a number of useful commands and support. 176 */ 177 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE) 178 #define CONFIG_DOS_PARTITION 179 #define CONFIG_CMD_FAT 180 #define CONFIG_FAT_WRITE 181 #define CONFIG_CMD_EXT2 182 #define CONFIG_CMD_EXT4 183 #define CONFIG_CMD_FS_GENERIC 184 #define CONFIG_PARTITION_UUIDS 185 #define CONFIG_CMD_PART 186 #endif 187 188 /* 189 * Our platforms make use of SPL to initalize the hardware (primarily 190 * memory) enough for full U-Boot to be loaded. We also support Falcon 191 * Mode so that the Linux kernel can be booted directly from SPL 192 * instead, if desired. We make use of the general SPL framework found 193 * under common/spl/. Given our generally common memory map, we set a 194 * number of related defaults and sizes here. 195 */ 196 #if !defined(CONFIG_NOR_BOOT) && \ 197 !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX)) 198 #define CONFIG_SPL_FRAMEWORK 199 #define CONFIG_SPL_OS_BOOT 200 201 /* 202 * Place the image at the start of the ROM defined image space (per 203 * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined 204 * downloaded image area. We initalize DRAM as soon as we can so that 205 * we can place stack, malloc and BSS there. We load U-Boot itself into 206 * memory at 0x80800000 for legacy reasons (to not conflict with older 207 * SPLs). We have our BSS be placed 2MiB after this, to allow for the 208 * default Linux kernel address of 0x80008000 to work with most sized 209 * kernels, in the Falcon Mode case. We have the SPL malloc pool at the 210 * end of the BSS area. We suggest that the stack be placed at 32MiB after 211 * the start of DRAM to allow room for all of the above (handled in Kconfig). 212 */ 213 #ifndef CONFIG_SYS_TEXT_BASE 214 #define CONFIG_SYS_TEXT_BASE 0x80800000 215 #endif 216 #ifndef CONFIG_SPL_BSS_START_ADDR 217 #define CONFIG_SPL_BSS_START_ADDR 0x80a00000 218 #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 219 #endif 220 #ifndef CONFIG_SYS_SPL_MALLOC_START 221 #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 222 CONFIG_SPL_BSS_MAX_SIZE) 223 #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 224 #endif 225 226 /* RAW SD card / eMMC locations. */ 227 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */ 228 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */ 229 230 /* FAT sd card locations. */ 231 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 232 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" 233 234 #ifdef CONFIG_SPL_OS_BOOT 235 /* FAT */ 236 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage" 237 #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args" 238 239 /* RAW SD card / eMMC */ 240 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900 /* address 0x120000 */ 241 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x80 /* address 0x10000 */ 242 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x80 /* 64KiB */ 243 244 /* spl export command */ 245 #define CONFIG_CMD_SPL 246 #endif 247 248 #ifdef CONFIG_MMC 249 #define CONFIG_SPL_LIBDISK_SUPPORT 250 #define CONFIG_SPL_MMC_SUPPORT 251 #define CONFIG_SPL_FAT_SUPPORT 252 #define CONFIG_SPL_EXT_SUPPORT 253 #endif 254 255 #ifdef CONFIG_SPL_BUILD 256 #define CONFIG_SYS_THUMB_BUILD /* Thumbs mode to save space in SPL */ 257 #endif 258 259 /* General parts of the framework, required. */ 260 #define CONFIG_SPL_I2C_SUPPORT 261 #define CONFIG_SPL_LIBCOMMON_SUPPORT 262 #define CONFIG_SPL_LIBGENERIC_SUPPORT 263 #define CONFIG_SPL_SERIAL_SUPPORT 264 #define CONFIG_SPL_GPIO_SUPPORT 265 #define CONFIG_SPL_BOARD_INIT 266 267 #ifdef CONFIG_NAND 268 #define CONFIG_SPL_NAND_SUPPORT 269 #define CONFIG_SPL_NAND_BASE 270 #define CONFIG_SPL_NAND_DRIVERS 271 #define CONFIG_SPL_NAND_ECC 272 #define CONFIG_SPL_MTD_SUPPORT 273 #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE 274 #endif 275 #endif /* !CONFIG_NOR_BOOT */ 276 277 /* Generic Environment Variables */ 278 279 #ifdef CONFIG_CMD_NET 280 #define NETARGS \ 281 "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \ 282 "::off\0" \ 283 "nfsopts=nolock\0" \ 284 "rootpath=/export/rootfs\0" \ 285 "netloadimage=tftp ${loadaddr} ${bootfile}\0" \ 286 "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \ 287 "netargs=setenv bootargs console=${console} " \ 288 "${optargs} " \ 289 "root=/dev/nfs " \ 290 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \ 291 "ip=dhcp\0" \ 292 "netboot=echo Booting from network ...; " \ 293 "setenv autoload no; " \ 294 "dhcp; " \ 295 "run netloadimage; " \ 296 "run netloadfdt; " \ 297 "run netargs; " \ 298 "bootz ${loadaddr} - ${fdtaddr}\0" 299 #else 300 #define NETARGS "" 301 #endif 302 303 #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */ 304