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
  59 #define DEFAULT_MMC_TI_ARGS \
  60         "mmcdev=0\0" \
  61         "mmcrootfstype=ext4 rootwait\0" \
  62         "finduuid=part uuid mmc ${bootpart} uuid\0" \
  63         "args_mmc=run finduuid;setenv bootargs console=${console} " \
  64                 "${optargs} " \
  65                 "root=PARTUUID=${uuid} rw " \
  66                 "rootfstype=${mmcrootfstype}\0" \
  67         "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
  68         "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
  69                 "source ${loadaddr}\0" \
  70         "bootenvfile=uEnv.txt\0" \
  71         "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \
  72                 "env import -t ${loadaddr} ${filesize}\0" \
  73         "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \
  74         "envboot=mmc dev ${mmcdev}; " \
  75                 "if mmc rescan; then " \
  76                         "echo SD/MMC found on device ${mmcdev};" \
  77                         "if run loadbootscript; then " \
  78                                 "run bootscript;" \
  79                         "else " \
  80                                 "if run loadbootenv; then " \
  81                                         "echo Loaded env from ${bootenvfile};" \
  82                                         "run importbootenv;" \
  83                                 "fi;" \
  84                                 "if test -n $uenvcmd; then " \
  85                                         "echo Running uenvcmd ...;" \
  86                                         "run uenvcmd;" \
  87                                 "fi;" \
  88                         "fi;" \
  89                 "fi;\0" \
  90
  91 /*
  92  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
  93  * we say (for simplicity) that we have 1 bank, always, even when
  94  * we have more.  We always start at 0x80000000, and we place the
  95  * initial stack pointer in our SRAM. Otherwise, we can define
  96  * CONFIG_NR_DRAM_BANKS before including this file.
  97  */
  98 #ifndef CONFIG_NR_DRAM_BANKS
  99 #define CONFIG_NR_DRAM_BANKS            1
 100 #endif
 101 #define CONFIG_SYS_SDRAM_BASE           0x80000000
 102
 103 #ifndef CONFIG_SYS_INIT_SP_ADDR
 104 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
 105                                                 GENERATED_GBL_DATA_SIZE)
 106 #endif
 107
 108 /* Timer information. */
 109 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
 110
 111 /*
 112  * Disable DM_* for SPL build and can be re-enabled after adding
 113  * DM support in SPL
 114  */
 115 #ifdef CONFIG_SPL_BUILD
 116 #undef CONFIG_DM_I2C
 117 #endif
 118
 119 /* I2C IP block */
 120 #define CONFIG_I2C
 121 #ifndef CONFIG_DM_I2C
 122 #define CONFIG_SYS_I2C
 123 #else
 124 /*
 125  * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
 126  * devices are adopted to DM
 127  */
 128 #define CONFIG_DM_I2C_COMPAT
 129 #endif
 130
 131 /* MMC/SD IP block */
 132 #define CONFIG_MMC
 133 #define CONFIG_GENERIC_MMC
 134
 135 /* McSPI IP block */
 136 #define CONFIG_SPI
 137
 138 /* GPIO block */
 139
 140 /*
 141  * The following are general good-enough settings for U-Boot.  We set a
 142  * large malloc pool as we generally have a lot of DDR, and we opt for
 143  * function over binary size in the main portion of U-Boot as this is
 144  * generally easily constrained later if needed.  We enable the config
 145  * options that give us information in the environment about what board
 146  * we are on so we do not need to rely on the command prompt.  We set a
 147  * console baudrate of 115200 and use the default baud rate table.
 148  */
 149 #define CONFIG_SYS_MALLOC_LEN           SZ_32M
 150 #define CONFIG_BAUDRATE                 115200
 151 #define CONFIG_ENV_VARS_UBOOT_CONFIG    /* Strongly encouraged */
 152 #define CONFIG_ENV_OVERWRITE            /* Overwrite ethaddr / serial# */
 153
 154 /* As stated above, the following choices are optional. */
 155 #define CONFIG_SYS_LONGHELP
 156 #define CONFIG_AUTO_COMPLETE
 157 #define CONFIG_CMDLINE_EDITING
 158
 159 /* We set the max number of command args high to avoid HUSH bugs. */
 160 #define CONFIG_SYS_MAXARGS              64
 161
 162 /* Console I/O Buffer Size */
 163 #define CONFIG_SYS_CBSIZE               512
 164 /* Print Buffer Size */
 165 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE \
 166                                         + sizeof(CONFIG_SYS_PROMPT) + 16)
 167 /* Boot Argument Buffer Size */
 168 #define CONFIG_SYS_BARGSIZE             CONFIG_SYS_CBSIZE
 169
 170 /*
 171  * When we have SPI, NOR or NAND flash we expect to be making use of
 172  * mtdparts, both for ease of use in U-Boot and for passing information
 173  * on to the Linux kernel.
 174  */
 175 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
 176 #define CONFIG_MTD_DEVICE               /* Required for mtdparts */
 177 #define CONFIG_CMD_MTDPARTS
 178 #endif
 179
 180 #define CONFIG_SUPPORT_RAW_INITRD
 181
 182 /*
 183  * Common filesystems support.  When we have removable storage we
 184  * enabled a number of useful commands and support.
 185  */
 186 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
 187 #define CONFIG_DOS_PARTITION
 188 #define CONFIG_FAT_WRITE
 189 #define CONFIG_PARTITION_UUIDS
 190 #define CONFIG_CMD_PART
 191 #endif
 192
 193 /*
 194  * Our platforms make use of SPL to initalize the hardware (primarily
 195  * memory) enough for full U-Boot to be loaded. We make use of the general
 196  * SPL framework found under common/spl/.  Given our generally common memory
 197  * map, we set a number of related defaults and sizes here.
 198  */
 199 #if !defined(CONFIG_NOR_BOOT) && \
 200         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
 201 #define CONFIG_SPL_FRAMEWORK
 202
 203 /*
 204  * We also support Falcon Mode so that the Linux kernel can be booted
 205  * directly from SPL. This is not currently available on HS devices.
 206  */
 207
 208 /*
 209  * Place the image at the start of the ROM defined image space (per
 210  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 211  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
 212  * soon as we can so that we can place stack, malloc and BSS there.  We load
 213  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
 214  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
 215  * the default Linux kernel address of 0x80008000 to work with most sized
 216  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
 217  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
 218  * start of DRAM to allow room for all of the above (handled in Kconfig).
 219  */
 220 #ifndef CONFIG_SYS_TEXT_BASE
 221 #define CONFIG_SYS_TEXT_BASE            0x80800000
 222 #endif
 223 #ifndef CONFIG_SPL_BSS_START_ADDR
 224 #define CONFIG_SPL_BSS_START_ADDR       0x80a00000
 225 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 226 #endif
 227 #ifndef CONFIG_SYS_SPL_MALLOC_START
 228 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 229                                          CONFIG_SPL_BSS_MAX_SIZE)
 230 #define CONFIG_SYS_SPL_MALLOC_SIZE      SZ_8M
 231 #endif
 232 #ifndef CONFIG_SPL_MAX_SIZE
 233 #define CONFIG_SPL_MAX_SIZE             (SRAM_SCRATCH_SPACE_ADDR - \
 234                                          CONFIG_SPL_TEXT_BASE)
 235 #endif
 236
 237
 238 /* RAW SD card / eMMC locations. */
 239 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */
 240 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS      0x200 /* 256 KB */
 241
 242 /* FAT sd card locations. */
 243 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION      1
 244 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
 245
 246 #ifdef CONFIG_SPL_OS_BOOT
 247 /* FAT */
 248 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME          "uImage"
 249 #define CONFIG_SPL_FS_LOAD_ARGS_NAME            "args"
 250
 251 /* RAW SD card / eMMC */
 252 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900   /* address 0x120000 */
 253 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR   0x80    /* address 0x10000 */
 254 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS  0x80    /* 64KiB */
 255
 256 /* spl export command */
 257 #define CONFIG_CMD_SPL
 258 #endif
 259
 260 #define CONFIG_SYS_THUMB_BUILD
 261
 262 /* General parts of the framework, required. */
 263 #define CONFIG_SPL_BOARD_INIT
 264
 265 #ifdef CONFIG_NAND
 266 #define CONFIG_SPL_NAND_BASE
 267 #define CONFIG_SPL_NAND_DRIVERS
 268 #define CONFIG_SPL_NAND_ECC
 269 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 270 #endif
 271 #endif /* !CONFIG_NOR_BOOT */
 272
 273 /* Generic Environment Variables */
 274
 275 #ifdef CONFIG_CMD_NET
 276 #define NETARGS \
 277         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 278                 "::off\0" \
 279         "nfsopts=nolock\0" \
 280         "rootpath=/export/rootfs\0" \
 281         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 282         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 283         "netargs=setenv bootargs console=${console} " \
 284                 "${optargs} " \
 285                 "root=/dev/nfs " \
 286                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 287                 "ip=dhcp\0" \
 288         "netboot=echo Booting from network ...; " \
 289                 "setenv autoload no; " \
 290                 "dhcp; " \
 291                 "run netloadimage; " \
 292                 "run netloadfdt; " \
 293                 "run netargs; " \
 294                 "bootz ${loadaddr} - ${fdtaddr}\0"
 295 #else
 296 #define NETARGS ""
 297 #endif
 298
 299 #include <config_distro_defaults.h>
 300
 301 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */