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_OF_LIBFDT
  28 #define CONFIG_CMDLINE_TAG
  29 #define CONFIG_SETUP_MEMORY_TAGS
  30 #define CONFIG_INITRD_TAG
  31
  32 /*
  33  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
  34  * relocated itself to higher in memory by the time this value is used.
  35  * However, set this to a 32MB offset to allow for easier Linux kernel
  36  * booting as the default is often used as the kernel load address.
  37  */
  38 #define CONFIG_SYS_LOAD_ADDR            0x82000000
  39
  40 /*
  41  * We setup defaults based on constraints from the Linux kernel, which should
  42  * also be safe elsewhere.  We have the default load at 32MB into DDR (for
  43  * the kernel), FDT above 128MB (the maximum location for the end of the
  44  * kernel), and the ramdisk 512KB above that (allowing for hopefully never
  45  * seen large trees).  We say all of this must be within the first 256MB
  46  * as that will normally be within the kernel lowmem and thus visible via
  47  * bootm_size and we only run on platforms with 256MB or more of memory.
  48  */
  49 #define DEFAULT_LINUX_BOOT_ENV \
  50         "loadaddr=0x82000000\0" \
  51         "kernel_addr_r=0x82000000\0" \
  52         "fdtaddr=0x88000000\0" \
  53         "fdt_addr_r=0x88000000\0" \
  54         "rdaddr=0x88080000\0" \
  55         "ramdisk_addr_r=0x88080000\0" \
  56         "scriptaddr=0x80000000\0" \
  57         "pxefile_addr_r=0x80100000\0" \
  58         "bootm_size=0x10000000\0"
  59
  60 #define DEFAULT_MMC_TI_ARGS \
  61         "mmcdev=0\0" \
  62         "mmcrootfstype=ext4 rootwait\0" \
  63         "finduuid=part uuid mmc 0:2 uuid\0" \
  64         "args_mmc=run finduuid;setenv bootargs console=${console} " \
  65                 "${optargs} " \
  66                 "root=PARTUUID=${uuid} rw " \
  67                 "rootfstype=${mmcrootfstype}\0"
  68
  69 /*
  70  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
  71  * we say (for simplicity) that we have 1 bank, always, even when
  72  * we have more.  We always start at 0x80000000, and we place the
  73  * initial stack pointer in our SRAM. Otherwise, we can define
  74  * CONFIG_NR_DRAM_BANKS before including this file.
  75  */
  76 #ifndef CONFIG_NR_DRAM_BANKS
  77 #define CONFIG_NR_DRAM_BANKS            1
  78 #endif
  79 #define CONFIG_SYS_SDRAM_BASE           0x80000000
  80
  81 #ifndef CONFIG_SYS_INIT_SP_ADDR
  82 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
  83                                                 GENERATED_GBL_DATA_SIZE)
  84 #endif
  85
  86 /* Timer information. */
  87 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
  88
  89 /* I2C IP block */
  90 #define CONFIG_I2C
  91 #define CONFIG_CMD_I2C
  92 #define CONFIG_SYS_I2C
  93
  94 /* MMC/SD IP block */
  95 #define CONFIG_MMC
  96 #define CONFIG_GENERIC_MMC
  97 #define CONFIG_CMD_MMC
  98
  99 /* McSPI IP block */
 100 #define CONFIG_SPI
 101 #define CONFIG_CMD_SPI
 102
 103 /* GPIO block */
 104 #define CONFIG_CMD_GPIO
 105
 106 /*
 107  * The following are general good-enough settings for U-Boot.  We set a
 108  * large malloc pool as we generally have a lot of DDR, and we opt for
 109  * function over binary size in the main portion of U-Boot as this is
 110  * generally easily constrained later if needed.  We enable the config
 111  * options that give us information in the environment about what board
 112  * we are on so we do not need to rely on the command prompt.  We set a
 113  * console baudrate of 115200 and use the default baud rate table.
 114  */
 115 #ifdef CONFIG_DFU_MMC
 116 #define CONFIG_SYS_MALLOC_LEN   ((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE)
 117 #else
 118 #define CONFIG_SYS_MALLOC_LEN   (16 << 20)
 119 #endif
 120 #define CONFIG_SYS_HUSH_PARSER
 121 #define CONFIG_SYS_CONSOLE_INFO_QUIET
 122 #define CONFIG_BAUDRATE                 115200
 123 #define CONFIG_ENV_VARS_UBOOT_CONFIG    /* Strongly encouraged */
 124 #define CONFIG_ENV_OVERWRITE            /* Overwrite ethaddr / serial# */
 125
 126 /* As stated above, the following choices are optional. */
 127 #define CONFIG_SYS_LONGHELP
 128 #define CONFIG_AUTO_COMPLETE
 129 #define CONFIG_CMDLINE_EDITING
 130 #define CONFIG_VERSION_VARIABLE
 131
 132 /* We set the max number of command args high to avoid HUSH bugs. */
 133 #define CONFIG_SYS_MAXARGS              64
 134
 135 /* Console I/O Buffer Size */
 136 #define CONFIG_SYS_CBSIZE               512
 137 /* Print Buffer Size */
 138 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE \
 139                                         + sizeof(CONFIG_SYS_PROMPT) + 16)
 140 /* Boot Argument Buffer Size */
 141 #define CONFIG_SYS_BARGSIZE             CONFIG_SYS_CBSIZE
 142
 143 /*
 144  * When we have SPI, NOR or NAND flash we expect to be making use of
 145  * mtdparts, both for ease of use in U-Boot and for passing information
 146  * on to the Linux kernel.
 147  */
 148 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
 149 #define CONFIG_MTD_DEVICE               /* Required for mtdparts */
 150 #define CONFIG_CMD_MTDPARTS
 151 #endif
 152
 153 #define CONFIG_CMD_ASKENV
 154 #define CONFIG_CMD_BOOTZ
 155 #define CONFIG_SUPPORT_RAW_INITRD
 156
 157 /*
 158  * Common filesystems support.  When we have removable storage we
 159  * enabled a number of useful commands and support.
 160  */
 161 #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
 162 #define CONFIG_DOS_PARTITION
 163 #define CONFIG_CMD_FAT
 164 #define CONFIG_FAT_WRITE
 165 #define CONFIG_CMD_EXT2
 166 #define CONFIG_CMD_EXT4
 167 #define CONFIG_CMD_FS_GENERIC
 168 #define CONFIG_PARTITION_UUIDS
 169 #define CONFIG_CMD_PART
 170 #endif
 171
 172 /*
 173  * Our platforms make use of SPL to initalize the hardware (primarily
 174  * memory) enough for full U-Boot to be loaded.  We also support Falcon
 175  * Mode so that the Linux kernel can be booted directly from SPL
 176  * instead, if desired.  We make use of the general SPL framework found
 177  * under common/spl/.  Given our generally common memory map, we set a
 178  * number of related defaults and sizes here.
 179  */
 180 #if !defined(CONFIG_NOR_BOOT) && \
 181         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
 182 #define CONFIG_SPL_FRAMEWORK
 183 #define CONFIG_SPL_OS_BOOT
 184
 185 /*
 186  * Place the image at the start of the ROM defined image space (per
 187  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 188  * downloaded image area.  We initalize DRAM as soon as we can so that
 189  * we can place stack, malloc and BSS there.  We load U-Boot itself into
 190  * memory at 0x80800000 for legacy reasons (to not conflict with older
 191  * SPLs).  We have our BSS be placed 2MiB after this, to allow for the
 192  * default Linux kernel address of 0x80008000 to work with most sized
 193  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the
 194  * end of the BSS area.  We suggest that the stack be placed at 32MiB after
 195  * the start of DRAM to allow room for all of the above (handled in Kconfig).
 196  */
 197 #ifndef CONFIG_SYS_TEXT_BASE
 198 #define CONFIG_SYS_TEXT_BASE            0x80800000
 199 #endif
 200 #ifndef CONFIG_SPL_BSS_START_ADDR
 201 #define CONFIG_SPL_BSS_START_ADDR       0x80a00000
 202 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 203 #endif
 204 #ifndef CONFIG_SYS_SPL_MALLOC_START
 205 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 206                                          CONFIG_SPL_BSS_MAX_SIZE)
 207 #define CONFIG_SYS_SPL_MALLOC_SIZE      CONFIG_SYS_MALLOC_LEN
 208 #endif
 209
 210 /* RAW SD card / eMMC locations. */
 211 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address 0x60000 */
 212 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS      0x200 /* 256 KB */
 213
 214 /* FAT sd card locations. */
 215 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION      1
 216 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
 217
 218 #ifdef CONFIG_SPL_OS_BOOT
 219 /* FAT */
 220 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME          "uImage"
 221 #define CONFIG_SPL_FS_LOAD_ARGS_NAME            "args"
 222
 223 /* RAW SD card / eMMC */
 224 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x900   /* address 0x120000 */
 225 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR   0x80    /* address 0x10000 */
 226 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS  0x80    /* 64KiB */
 227
 228 /* spl export command */
 229 #define CONFIG_CMD_SPL
 230 #endif
 231
 232 #ifdef CONFIG_MMC
 233 #define CONFIG_SPL_LIBDISK_SUPPORT
 234 #define CONFIG_SPL_MMC_SUPPORT
 235 #define CONFIG_SPL_FAT_SUPPORT
 236 #define CONFIG_SPL_EXT_SUPPORT
 237 #endif
 238
 239 #define CONFIG_SYS_THUMB_BUILD
 240
 241 /* General parts of the framework, required. */
 242 #define CONFIG_SPL_I2C_SUPPORT
 243 #define CONFIG_SPL_LIBCOMMON_SUPPORT
 244 #define CONFIG_SPL_LIBGENERIC_SUPPORT
 245 #define CONFIG_SPL_SERIAL_SUPPORT
 246 #define CONFIG_SPL_POWER_SUPPORT
 247 #define CONFIG_SPL_GPIO_SUPPORT
 248 #define CONFIG_SPL_BOARD_INIT
 249
 250 #ifdef CONFIG_NAND
 251 #define CONFIG_SPL_NAND_SUPPORT
 252 #define CONFIG_SPL_NAND_BASE
 253 #define CONFIG_SPL_NAND_DRIVERS
 254 #define CONFIG_SPL_NAND_ECC
 255 #define CONFIG_SPL_MTD_SUPPORT
 256 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 257 #endif
 258 #endif /* !CONFIG_NOR_BOOT */
 259
 260 /* Generic Environment Variables */
 261
 262 #ifdef CONFIG_CMD_NET
 263 #define NETARGS \
 264         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 265                 "::off\0" \
 266         "nfsopts=nolock\0" \
 267         "rootpath=/export/rootfs\0" \
 268         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 269         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 270         "netargs=setenv bootargs console=${console} " \
 271                 "${optargs} " \
 272                 "root=/dev/nfs " \
 273                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 274                 "ip=dhcp\0" \
 275         "netboot=echo Booting from network ...; " \
 276                 "setenv autoload no; " \
 277                 "dhcp; " \
 278                 "run netloadimage; " \
 279                 "run netloadfdt; " \
 280                 "run netargs; " \
 281                 "bootz ${loadaddr} - ${fdtaddr}\0"
 282 #else
 283 #define NETARGS ""
 284 #endif
 285
 286 #include <config_distro_defaults.h>
 287
 288 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */