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