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                                 "run mmcloados;" \
 114                         "fi;" \
 115                 "fi;\0" \
 116
 117 /*
 118  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
 119  * we say (for simplicity) that we have 1 bank, always, even when
 120  * we have more.  We always start at 0x80000000, and we place the
 121  * initial stack pointer in our SRAM. Otherwise, we can define
 122  * CONFIG_NR_DRAM_BANKS before including this file.
 123  */
 124 #ifndef CONFIG_NR_DRAM_BANKS
 125 #define CONFIG_NR_DRAM_BANKS            1
 126 #endif
 127 #define CONFIG_SYS_SDRAM_BASE           0x80000000
 128
 129 #ifndef CONFIG_SYS_INIT_SP_ADDR
 130 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
 131                                                 GENERATED_GBL_DATA_SIZE)
 132 #endif
 133
 134 /* Timer information. */
 135 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
 136
 137 /*
 138  * Disable DM_* for SPL build and can be re-enabled after adding
 139  * DM support in SPL
 140  */
 141 #ifdef CONFIG_SPL_BUILD
 142 #undef CONFIG_DM_I2C
 143 #endif
 144
 145 /* I2C IP block */
 146 #define CONFIG_I2C
 147 #ifndef CONFIG_DM_I2C
 148 #define CONFIG_SYS_I2C
 149 #else
 150 /*
 151  * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
 152  * devices are adopted to DM
 153  */
 154 #define CONFIG_DM_I2C_COMPAT
 155 #endif
 156
 157 /* MMC/SD IP block */
 158 #define CONFIG_MMC
 159 #define CONFIG_GENERIC_MMC
 160
 161 /* McSPI IP block */
 162 #define CONFIG_SPI
 163
 164 /* GPIO block */
 165
 166 /*
 167  * The following are general good-enough settings for U-Boot.  We set a
 168  * large malloc pool as we generally have a lot of DDR, and we opt for
 169  * function over binary size in the main portion of U-Boot as this is
 170  * generally easily constrained later if needed.  We enable the config
 171  * options that give us information in the environment about what board
 172  * we are on so we do not need to rely on the command prompt.  We set a
 173  * console baudrate of 115200 and use the default baud rate table.
 174  */
 175 #define CONFIG_SYS_MALLOC_LEN           SZ_32M
 176 #define CONFIG_BAUDRATE                 115200
 177 #define CONFIG_ENV_VARS_UBOOT_CONFIG    /* Strongly encouraged */
 178 #define CONFIG_ENV_OVERWRITE            /* Overwrite ethaddr / serial# */
 179
 180 /* As stated above, the following choices are optional. */
 181 #define CONFIG_SYS_LONGHELP
 182 #define CONFIG_AUTO_COMPLETE
 183 #define CONFIG_CMDLINE_EDITING
 184
 185 /* We set the max number of command args high to avoid HUSH bugs. */
 186 #define CONFIG_SYS_MAXARGS              64
 187
 188 /* Console I/O Buffer Size */
 189 #define CONFIG_SYS_CBSIZE               512
 190 /* Print Buffer Size */
 191 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE \
 192                                         + sizeof(CONFIG_SYS_PROMPT) + 16)
 193 /* Boot Argument Buffer Size */
 194 #define CONFIG_SYS_BARGSIZE             CONFIG_SYS_CBSIZE
 195
 196 /*
 197  * When we have SPI, NOR or NAND flash we expect to be making use of
 198  * mtdparts, both for ease of use in U-Boot and for passing information
 199  * on to the Linux kernel.
 200  */
 201 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
 202 #define CONFIG_MTD_DEVICE               /* Required for mtdparts */
 203 #define CONFIG_CMD_MTDPARTS
 204 #endif
 205
 206 #define CONFIG_SUPPORT_RAW_INITRD
 207
 208 /*
 209  * Common filesystems support.  When we have removable storage we
 210  * enabled a number of useful commands and support.
 211  */
 212 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
 213 #define CONFIG_DOS_PARTITION
 214 #define CONFIG_FAT_WRITE
 215 #define CONFIG_PARTITION_UUIDS
 216 #define CONFIG_CMD_PART
 217 #endif
 218
 219 /*
 220  * Our platforms make use of SPL to initalize the hardware (primarily
 221  * memory) enough for full U-Boot to be loaded. We make use of the general
 222  * SPL framework found under common/spl/.  Given our generally common memory
 223  * map, we set a number of related defaults and sizes here.
 224  */
 225 #if !defined(CONFIG_NOR_BOOT) && \
 226         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
 227 #define CONFIG_SPL_FRAMEWORK
 228
 229 /*
 230  * We also support Falcon Mode so that the Linux kernel can be booted
 231  * directly from SPL. This is not currently available on HS devices.
 232  */
 233
 234 /*
 235  * Place the image at the start of the ROM defined image space (per
 236  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 237  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
 238  * soon as we can so that we can place stack, malloc and BSS there.  We load
 239  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
 240  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
 241  * the default Linux kernel address of 0x80008000 to work with most sized
 242  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
 243  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
 244  * start of DRAM to allow room for all of the above (handled in Kconfig).
 245  */
 246 #ifndef CONFIG_SYS_TEXT_BASE
 247 #define CONFIG_SYS_TEXT_BASE            0x80800000
 248 #endif
 249 #ifndef CONFIG_SPL_BSS_START_ADDR
 250 #define CONFIG_SPL_BSS_START_ADDR       0x80a00000
 251 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 252 #endif
 253 #ifndef CONFIG_SYS_SPL_MALLOC_START
 254 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 255                                          CONFIG_SPL_BSS_MAX_SIZE)
 256 #define CONFIG_SYS_SPL_MALLOC_SIZE      SZ_8M
 257 #endif
 258 #ifndef CONFIG_SPL_MAX_SIZE
 259 #define CONFIG_SPL_MAX_SIZE             (SRAM_SCRATCH_SPACE_ADDR - \
 260                                          CONFIG_SPL_TEXT_BASE)
 261 #endif
 262
 263
 264 /* FAT sd card locations. */
 265 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION      1
 266 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
 267
 268 #ifdef CONFIG_SPL_OS_BOOT
 269 /* FAT */
 270 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME          "uImage"
 271 #define CONFIG_SPL_FS_LOAD_ARGS_NAME            "args"
 272
 273 /* RAW SD card / eMMC */
 274 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900   /* address 0x120000 */
 275 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR   0x80    /* address 0x10000 */
 276 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS  0x80    /* 64KiB */
 277
 278 /* spl export command */
 279 #define CONFIG_CMD_SPL
 280 #endif
 281
 282 #define CONFIG_SYS_THUMB_BUILD
 283
 284 /* General parts of the framework, required. */
 285 #define CONFIG_SPL_BOARD_INIT
 286
 287 #ifdef CONFIG_NAND
 288 #define CONFIG_SPL_NAND_BASE
 289 #define CONFIG_SPL_NAND_DRIVERS
 290 #define CONFIG_SPL_NAND_ECC
 291 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 292 #endif
 293 #endif /* !CONFIG_NOR_BOOT */
 294
 295 /* Generic Environment Variables */
 296
 297 #ifdef CONFIG_CMD_NET
 298 #define NETARGS \
 299         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 300                 "::off\0" \
 301         "nfsopts=nolock\0" \
 302         "rootpath=/export/rootfs\0" \
 303         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 304         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 305         "netargs=setenv bootargs console=${console} " \
 306                 "${optargs} " \
 307                 "root=/dev/nfs " \
 308                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 309                 "ip=dhcp\0" \
 310         "netboot=echo Booting from network ...; " \
 311                 "setenv autoload no; " \
 312                 "dhcp; " \
 313                 "run netloadimage; " \
 314                 "run netloadfdt; " \
 315                 "run netargs; " \
 316                 "bootz ${loadaddr} - ${fdtaddr}\0"
 317 #else
 318 #define NETARGS ""
 319 #endif
 320
 321 #include <config_distro_defaults.h>
 322
 323 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */