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 /* Support both device trees and ATAGs. */
  21 #define CONFIG_CMDLINE_TAG
  22 #define CONFIG_SETUP_MEMORY_TAGS
  23 #define CONFIG_INITRD_TAG
  24
  25 /*
  26  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
  27  * relocated itself to higher in memory by the time this value is used.
  28  * However, set this to a 32MB offset to allow for easier Linux kernel
  29  * booting as the default is often used as the kernel load address.
  30  */
  31 #define CONFIG_SYS_LOAD_ADDR            0x82000000
  32
  33 /*
  34  * We setup defaults based on constraints from the Linux kernel, which should
  35  * also be safe elsewhere.  We have the default load at 32MB into DDR (for
  36  * the kernel), FDT above 128MB (the maximum location for the end of the
  37  * kernel), and the ramdisk 512KB above that (allowing for hopefully never
  38  * seen large trees).  We say all of this must be within the first 256MB
  39  * as that will normally be within the kernel lowmem and thus visible via
  40  * bootm_size and we only run on platforms with 256MB or more of memory.
  41  */
  42 #define DEFAULT_LINUX_BOOT_ENV \
  43         "loadaddr=0x82000000\0" \
  44         "kernel_addr_r=0x82000000\0" \
  45         "fdtaddr=0x88000000\0" \
  46         "fdt_addr_r=0x88000000\0" \
  47         "rdaddr=0x88080000\0" \
  48         "ramdisk_addr_r=0x88080000\0" \
  49         "scriptaddr=0x80000000\0" \
  50         "pxefile_addr_r=0x80100000\0" \
  51         "bootm_size=0x10000000\0" \
  52         "boot_fdt=try\0"
  53
  54 #define DEFAULT_MMC_TI_ARGS \
  55         "mmcdev=0\0" \
  56         "mmcrootfstype=ext4 rootwait\0" \
  57         "finduuid=part uuid mmc ${bootpart} uuid\0" \
  58         "args_mmc=run finduuid;setenv bootargs console=${console} " \
  59                 "${optargs} " \
  60                 "root=PARTUUID=${uuid} rw " \
  61                 "rootfstype=${mmcrootfstype}\0" \
  62         "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
  63         "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
  64                 "source ${loadaddr}\0" \
  65         "bootenvfile=uEnv.txt\0" \
  66         "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \
  67                 "env import -t ${loadaddr} ${filesize}\0" \
  68         "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}\0" \
  69         "loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
  70         "loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
  71         "envboot=mmc dev ${mmcdev}; " \
  72                 "if mmc rescan; then " \
  73                         "echo SD/MMC found on device ${mmcdev};" \
  74                         "if run loadbootscript; then " \
  75                                 "run bootscript;" \
  76                         "else " \
  77                                 "if run loadbootenv; then " \
  78                                         "echo Loaded env from ${bootenvfile};" \
  79                                         "run importbootenv;" \
  80                                 "fi;" \
  81                                 "if test -n $uenvcmd; then " \
  82                                         "echo Running uenvcmd ...;" \
  83                                         "run uenvcmd;" \
  84                                 "fi;" \
  85                         "fi;" \
  86                 "fi;\0" \
  87         "mmcloados=run args_mmc; " \
  88                 "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
  89                         "if run loadfdt; then " \
  90                                 "bootz ${loadaddr} - ${fdtaddr}; " \
  91                         "else " \
  92                                 "if test ${boot_fdt} = try; then " \
  93                                         "bootz; " \
  94                                 "else " \
  95                                         "echo WARN: Cannot load the DT; " \
  96                                 "fi; " \
  97                         "fi; " \
  98                 "else " \
  99                         "bootz; " \
 100                 "fi;\0" \
 101         "mmcboot=mmc dev ${mmcdev}; " \
 102                 "setenv devnum ${mmcdev}; " \
 103                 "setenv devtype mmc; " \
 104                 "if mmc rescan; then " \
 105                         "echo SD/MMC found on device ${mmcdev};" \
 106                         "if run loadimage; then " \
 107                                 "if test ${boot_fit} -eq 1; then " \
 108                                         "run loadfit; " \
 109                                 "else " \
 110                                         "run mmcloados;" \
 111                                 "fi;" \
 112                         "fi;" \
 113                 "fi;\0" \
 114
 115 #define DEFAULT_FIT_TI_ARGS \
 116         "boot_fit=0\0" \
 117         "fit_loadaddr=0x88000000\0" \
 118         "fit_bootfile=fitImage.itb\0" \
 119         "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \
 120         "loadfit=run args_mmc; bootm ${loadaddr}#${fdtfile};\0" \
 121
 122 /*
 123  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
 124  * we say (for simplicity) that we have 1 bank, always, even when
 125  * we have more.  We always start at 0x80000000, and we place the
 126  * initial stack pointer in our SRAM. Otherwise, we can define
 127  * CONFIG_NR_DRAM_BANKS before including this file.
 128  */
 129 #ifndef CONFIG_NR_DRAM_BANKS
 130 #define CONFIG_NR_DRAM_BANKS            1
 131 #endif
 132 #define CONFIG_SYS_SDRAM_BASE           0x80000000
 133
 134 #ifndef CONFIG_SYS_INIT_SP_ADDR
 135 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
 136                                                 GENERATED_GBL_DATA_SIZE)
 137 #endif
 138
 139 /* Timer information. */
 140 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
 141
 142 /*
 143  * Disable DM_* for SPL build and can be re-enabled after adding
 144  * DM support in SPL
 145  */
 146 #ifdef CONFIG_SPL_BUILD
 147 #undef CONFIG_DM_I2C
 148 #endif
 149
 150 /* I2C IP block */
 151 #define CONFIG_I2C
 152 #ifndef CONFIG_DM_I2C
 153 #define CONFIG_SYS_I2C
 154 #else
 155 /*
 156  * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
 157  * devices are adopted to DM
 158  */
 159 #define CONFIG_DM_I2C_COMPAT
 160 #endif
 161
 162 /* McSPI IP block */
 163 #define CONFIG_SPI
 164
 165 /* GPIO block */
 166
 167 /*
 168  * The following are general good-enough settings for U-Boot.  We set a
 169  * large malloc pool as we generally have a lot of DDR, and we opt for
 170  * function over binary size in the main portion of U-Boot as this is
 171  * generally easily constrained later if needed.  We enable the config
 172  * options that give us information in the environment about what board
 173  * we are on so we do not need to rely on the command prompt.  We set a
 174  * console baudrate of 115200 and use the default baud rate table.
 175  */
 176 #define CONFIG_SYS_MALLOC_LEN           SZ_32M
 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               1024
 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_FAT_WRITE
 214 #endif
 215
 216 /*
 217  * Our platforms make use of SPL to initalize the hardware (primarily
 218  * memory) enough for full U-Boot to be loaded. We make use of the general
 219  * SPL framework found under common/spl/.  Given our generally common memory
 220  * map, we set a number of related defaults and sizes here.
 221  */
 222 #if !defined(CONFIG_NOR_BOOT) && \
 223         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
 224 #define CONFIG_SPL_FRAMEWORK
 225
 226 /*
 227  * We also support Falcon Mode so that the Linux kernel can be booted
 228  * directly from SPL. This is not currently available on HS devices.
 229  */
 230
 231 /*
 232  * Place the image at the start of the ROM defined image space (per
 233  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 234  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
 235  * soon as we can so that we can place stack, malloc and BSS there.  We load
 236  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
 237  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
 238  * the default Linux kernel address of 0x80008000 to work with most sized
 239  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
 240  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
 241  * start of DRAM to allow room for all of the above (handled in Kconfig).
 242  */
 243 #ifndef CONFIG_SYS_TEXT_BASE
 244 #define CONFIG_SYS_TEXT_BASE            0x80800000
 245 #endif
 246 #ifndef CONFIG_SPL_BSS_START_ADDR
 247 #define CONFIG_SPL_BSS_START_ADDR       0x80a00000
 248 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 249 #endif
 250 #ifndef CONFIG_SYS_SPL_MALLOC_START
 251 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 252                                          CONFIG_SPL_BSS_MAX_SIZE)
 253 #define CONFIG_SYS_SPL_MALLOC_SIZE      SZ_8M
 254 #endif
 255 #ifndef CONFIG_SPL_MAX_SIZE
 256 #define CONFIG_SPL_MAX_SIZE             (SRAM_SCRATCH_SPACE_ADDR - \
 257                                          CONFIG_SPL_TEXT_BASE)
 258 #endif
 259
 260
 261 /* FAT sd card locations. */
 262 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION      1
 263 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
 264
 265 #ifdef CONFIG_SPL_OS_BOOT
 266 /* FAT */
 267 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME          "uImage"
 268 #define CONFIG_SPL_FS_LOAD_ARGS_NAME            "args"
 269
 270 /* RAW SD card / eMMC */
 271 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900   /* address 0x120000 */
 272 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR   0x80    /* address 0x10000 */
 273 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS  0x80    /* 64KiB */
 274
 275 /* spl export command */
 276 #define CONFIG_CMD_SPL
 277 #endif
 278
 279 /* General parts of the framework, required. */
 280 #define CONFIG_SPL_BOARD_INIT
 281
 282 #ifdef CONFIG_NAND
 283 #define CONFIG_SPL_NAND_BASE
 284 #define CONFIG_SPL_NAND_DRIVERS
 285 #define CONFIG_SPL_NAND_ECC
 286 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 287 #endif
 288 #endif /* !CONFIG_NOR_BOOT */
 289
 290 /* Generic Environment Variables */
 291
 292 #ifdef CONFIG_CMD_NET
 293 #define NETARGS \
 294         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 295                 "::off\0" \
 296         "nfsopts=nolock\0" \
 297         "rootpath=/export/rootfs\0" \
 298         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 299         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 300         "netargs=setenv bootargs console=${console} " \
 301                 "${optargs} " \
 302                 "root=/dev/nfs " \
 303                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 304                 "ip=dhcp\0" \
 305         "netboot=echo Booting from network ...; " \
 306                 "setenv autoload no; " \
 307                 "dhcp; " \
 308                 "run netloadimage; " \
 309                 "run netloadfdt; " \
 310                 "run netargs; " \
 311                 "bootz ${loadaddr} - ${fdtaddr}\0"
 312 #else
 313 #define NETARGS ""
 314 #endif
 315
 316 #include <config_distro_defaults.h>
 317
 318 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */