include/configs/ti_armv7_common.h

   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_CMDLINE_TAG
  28 #define CONFIG_SETUP_MEMORY_TAGS
  29 #define CONFIG_INITRD_TAG
  30
  31 /*
  32  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
  33  * relocated itself to higher in memory by the time this value is used.
  34  * However, set this to a 32MB offset to allow for easier Linux kernel
  35  * booting as the default is often used as the kernel load address.
  36  */
  37 #define CONFIG_SYS_LOAD_ADDR            0x82000000
  38
  39 /*
  40  * We setup defaults based on constraints from the Linux kernel, which should
  41  * also be safe elsewhere.  We have the default load at 32MB into DDR (for
  42  * the kernel), FDT above 128MB (the maximum location for the end of the
  43  * kernel), and the ramdisk 512KB above that (allowing for hopefully never
  44  * seen large trees).  We say all of this must be within the first 256MB
  45  * as that will normally be within the kernel lowmem and thus visible via
  46  * bootm_size and we only run on platforms with 256MB or more of memory.
  47  */
  48 #define DEFAULT_LINUX_BOOT_ENV \
  49         "loadaddr=0x82000000\0" \
  50         "kernel_addr_r=0x82000000\0" \
  51         "fdtaddr=0x88000000\0" \
  52         "fdt_addr_r=0x88000000\0" \
  53         "rdaddr=0x88080000\0" \
  54         "ramdisk_addr_r=0x88080000\0" \
  55         "scriptaddr=0x80000000\0" \
  56         "pxefile_addr_r=0x80100000\0" \
  57         "bootm_size=0x10000000\0" \
  58         "boot_fdt=try\0"
  59
  60 #define DEFAULT_MMC_TI_ARGS \
  61         "mmcdev=0\0" \
  62         "mmcrootfstype=ext4 rootwait\0" \
  63         "finduuid=part uuid mmc ${bootpart} uuid\0" \
  64         "args_mmc=run finduuid;setenv bootargs console=${console} " \
  65                 "${optargs} " \
  66                 "root=PARTUUID=${uuid} rw " \
  67                 "rootfstype=${mmcrootfstype}\0" \
  68         "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
  69         "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
  70                 "source ${loadaddr}\0" \
  71         "bootenvfile=uEnv.txt\0" \
  72         "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \
  73                 "env import -t ${loadaddr} ${filesize}\0" \
  74         "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \
  75         "loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
  76         "loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
  77         "envboot=mmc dev ${mmcdev}; " \
  78                 "if mmc rescan; then " \
  79                         "echo SD/MMC found on device ${mmcdev};" \
  80                         "if run loadbootscript; then " \
  81                                 "run bootscript;" \
  82                         "else " \
  83                                 "if run loadbootenv; then " \
  84                                         "echo Loaded env from ${bootenvfile};" \
  85                                         "run importbootenv;" \
  86                                 "fi;" \
  87                                 "if test -n $uenvcmd; then " \
  88                                         "echo Running uenvcmd ...;" \
  89                                         "run uenvcmd;" \
  90                                 "fi;" \
  91                         "fi;" \
  92                 "fi;\0" \
  93         "mmcloados=run args_mmc; " \
  94                 "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
  95                         "if run loadfdt; then " \
  96                                 "bootz ${loadaddr} - ${fdtaddr}; " \
  97                         "else " \
  98                                 "if test ${boot_fdt} = try; then " \
  99                                         "bootz; " \
 100                                 "else " \
 101                                         "echo WARN: Cannot load the DT; " \
 102                                 "fi; " \
 103                         "fi; " \
 104                 "else " \
 105                         "bootz; " \
 106                 "fi;\0" \
 107         "mmcboot=mmc dev ${mmcdev}; " \
 108                 "setenv devnum ${mmcdev}; " \
 109                 "setenv devtype mmc; " \
 110                 "if mmc rescan; then " \
 111                         "echo SD/MMC found on device ${mmcdev};" \
 112                         "if run loadimage; then " \
 113                                 "if test ${boot_fit} -eq 1; then " \
 114                                         "run loadfit; " \
 115                                 "else " \
 116                                         "run mmcloados;" \
 117                                 "fi;" \
 118                         "fi;" \
 119                 "fi;\0" \
 120
 121 #define DEFAULT_FIT_TI_ARGS \
 122         "boot_fit=0\0" \
 123         "fit_loadaddr=0x88000000\0" \
 124         "fit_bootfile=fitImage.itb\0" \
 125         "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \
 126         "args_fit=setenv bootargs console=${console} \0" \
 127         "loadfit=run args_fit; bootm ${loadaddr}#${fdtfile};\0" \
 128
 129 /*
 130  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
 131  * we say (for simplicity) that we have 1 bank, always, even when
 132  * we have more.  We always start at 0x80000000, and we place the
 133  * initial stack pointer in our SRAM. Otherwise, we can define
 134  * CONFIG_NR_DRAM_BANKS before including this file.
 135  */
 136 #ifndef CONFIG_NR_DRAM_BANKS
 137 #define CONFIG_NR_DRAM_BANKS            1
 138 #endif
 139 #define CONFIG_SYS_SDRAM_BASE           0x80000000
 140
 141 #ifndef CONFIG_SYS_INIT_SP_ADDR
 142 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
 143                                                 GENERATED_GBL_DATA_SIZE)
 144 #endif
 145
 146 /* Timer information. */
 147 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
 148
 149 /*
 150  * Disable DM_* for SPL build and can be re-enabled after adding
 151  * DM support in SPL
 152  */
 153 #ifdef CONFIG_SPL_BUILD
 154 #undef CONFIG_DM_I2C
 155 #endif
 156
 157 /* I2C IP block */
 158 #define CONFIG_I2C
 159 #ifndef CONFIG_DM_I2C
 160 #define CONFIG_SYS_I2C
 161 #else
 162 /*
 163  * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
 164  * devices are adopted to DM
 165  */
 166 #define CONFIG_DM_I2C_COMPAT
 167 #endif
 168
 169 /* McSPI IP block */
 170 #define CONFIG_SPI
 171
 172 /* GPIO block */
 173
 174 /*
 175  * The following are general good-enough settings for U-Boot.  We set a
 176  * large malloc pool as we generally have a lot of DDR, and we opt for
 177  * function over binary size in the main portion of U-Boot as this is
 178  * generally easily constrained later if needed.  We enable the config
 179  * options that give us information in the environment about what board
 180  * we are on so we do not need to rely on the command prompt.  We set a
 181  * console baudrate of 115200 and use the default baud rate table.
 182  */
 183 #define CONFIG_SYS_MALLOC_LEN           SZ_32M
 184 #define CONFIG_BAUDRATE                 115200
 185 #define CONFIG_ENV_VARS_UBOOT_CONFIG    /* Strongly encouraged */
 186 #define CONFIG_ENV_OVERWRITE            /* Overwrite ethaddr / serial# */
 187
 188 /* As stated above, the following choices are optional. */
 189 #define CONFIG_SYS_LONGHELP
 190 #define CONFIG_AUTO_COMPLETE
 191 #define CONFIG_CMDLINE_EDITING
 192
 193 /* We set the max number of command args high to avoid HUSH bugs. */
 194 #define CONFIG_SYS_MAXARGS              64
 195
 196 /* Console I/O Buffer Size */
 197 #define CONFIG_SYS_CBSIZE               1024
 198 /* Print Buffer Size */
 199 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE \
 200                                         + sizeof(CONFIG_SYS_PROMPT) + 16)
 201 /* Boot Argument Buffer Size */
 202 #define CONFIG_SYS_BARGSIZE             CONFIG_SYS_CBSIZE
 203
 204 /*
 205  * When we have SPI, NOR or NAND flash we expect to be making use of
 206  * mtdparts, both for ease of use in U-Boot and for passing information
 207  * on to the Linux kernel.
 208  */
 209 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
 210 #define CONFIG_MTD_DEVICE               /* Required for mtdparts */
 211 #define CONFIG_CMD_MTDPARTS
 212 #endif
 213
 214 #define CONFIG_SUPPORT_RAW_INITRD
 215
 216 /*
 217  * Common filesystems support.  When we have removable storage we
 218  * enabled a number of useful commands and support.
 219  */
 220 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
 221 #define CONFIG_FAT_WRITE
 222 #endif
 223
 224 /*
 225  * Our platforms make use of SPL to initalize the hardware (primarily
 226  * memory) enough for full U-Boot to be loaded. We make use of the general
 227  * SPL framework found under common/spl/.  Given our generally common memory
 228  * map, we set a number of related defaults and sizes here.
 229  */
 230 #if !defined(CONFIG_NOR_BOOT) && \
 231         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
 232 #define CONFIG_SPL_FRAMEWORK
 233
 234 /*
 235  * We also support Falcon Mode so that the Linux kernel can be booted
 236  * directly from SPL. This is not currently available on HS devices.
 237  */
 238
 239 /*
 240  * Place the image at the start of the ROM defined image space (per
 241  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 242  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
 243  * soon as we can so that we can place stack, malloc and BSS there.  We load
 244  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
 245  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
 246  * the default Linux kernel address of 0x80008000 to work with most sized
 247  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
 248  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
 249  * start of DRAM to allow room for all of the above (handled in Kconfig).
 250  */
 251 #ifndef CONFIG_SYS_TEXT_BASE
 252 #define CONFIG_SYS_TEXT_BASE            0x80800000
 253 #endif
 254 #ifndef CONFIG_SPL_BSS_START_ADDR
 255 #define CONFIG_SPL_BSS_START_ADDR       0x80a00000
 256 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 257 #endif
 258 #ifndef CONFIG_SYS_SPL_MALLOC_START
 259 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 260                                          CONFIG_SPL_BSS_MAX_SIZE)
 261 #define CONFIG_SYS_SPL_MALLOC_SIZE      SZ_8M
 262 #endif
 263 #ifndef CONFIG_SPL_MAX_SIZE
 264 #define CONFIG_SPL_MAX_SIZE             (SRAM_SCRATCH_SPACE_ADDR - \
 265                                          CONFIG_SPL_TEXT_BASE)
 266 #endif
 267
 268
 269 /* FAT sd card locations. */
 270 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION      1
 271 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
 272
 273 #ifdef CONFIG_SPL_OS_BOOT
 274 /* FAT */
 275 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME          "uImage"
 276 #define CONFIG_SPL_FS_LOAD_ARGS_NAME            "args"
 277
 278 /* RAW SD card / eMMC */
 279 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900   /* address 0x120000 */
 280 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR   0x80    /* address 0x10000 */
 281 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS  0x80    /* 64KiB */
 282
 283 /* spl export command */
 284 #define CONFIG_CMD_SPL
 285 #endif
 286
 287 #define CONFIG_SYS_THUMB_BUILD
 288
 289 /* General parts of the framework, required. */
 290 #define CONFIG_SPL_BOARD_INIT
 291
 292 #ifdef CONFIG_NAND
 293 #define CONFIG_SPL_NAND_BASE
 294 #define CONFIG_SPL_NAND_DRIVERS
 295 #define CONFIG_SPL_NAND_ECC
 296 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 297 #endif
 298 #endif /* !CONFIG_NOR_BOOT */
 299
 300 /* Generic Environment Variables */
 301
 302 #ifdef CONFIG_CMD_NET
 303 #define NETARGS \
 304         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 305                 "::off\0" \
 306         "nfsopts=nolock\0" \
 307         "rootpath=/export/rootfs\0" \
 308         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 309         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 310         "netargs=setenv bootargs console=${console} " \
 311                 "${optargs} " \
 312                 "root=/dev/nfs " \
 313                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 314                 "ip=dhcp\0" \
 315         "netboot=echo Booting from network ...; " \
 316                 "setenv autoload no; " \
 317                 "dhcp; " \
 318                 "run netloadimage; " \
 319                 "run netloadfdt; " \
 320                 "run netargs; " \
 321                 "bootz ${loadaddr} - ${fdtaddr}\0"
 322 #else
 323 #define NETARGS ""
 324 #endif
 325
 326 #include <config_distro_defaults.h>
 327
 328 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */