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_FIT_TI_ARGS \
  55         "boot_fit=0\0" \
  56         "fit_loadaddr=0x87000000\0" \
  57         "fit_bootfile=fitImage\0" \
  58         "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \
  59         "loadfit=run args_mmc; bootm ${loadaddr}#${fdtfile};\0" \
  60
  61 /*
  62  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
  63  * we say (for simplicity) that we have 1 bank, always, even when
  64  * we have more.  We always start at 0x80000000, and we place the
  65  * initial stack pointer in our SRAM. Otherwise, we can define
  66  * CONFIG_NR_DRAM_BANKS before including this file.
  67  */
  68 #ifndef CONFIG_NR_DRAM_BANKS
  69 #define CONFIG_NR_DRAM_BANKS            1
  70 #endif
  71 #define CONFIG_SYS_SDRAM_BASE           0x80000000
  72
  73 #ifndef CONFIG_SYS_INIT_SP_ADDR
  74 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
  75                                                 GENERATED_GBL_DATA_SIZE)
  76 #endif
  77
  78 /* Timer information. */
  79 #define CONFIG_SYS_PTV                  2       /* Divisor: 2^(PTV+1) => 8 */
  80
  81 /*
  82  * Disable DM_* for SPL build and can be re-enabled after adding
  83  * DM support in SPL
  84  */
  85 #ifdef CONFIG_SPL_BUILD
  86 #undef CONFIG_DM_I2C
  87 #endif
  88
  89 /* I2C IP block */
  90 #define CONFIG_I2C
  91 #ifndef CONFIG_DM_I2C
  92 #define CONFIG_SYS_I2C
  93 #else
  94 /*
  95  * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
  96  * devices are adopted to DM
  97  */
  98 #define CONFIG_DM_I2C_COMPAT
  99 #endif
 100
 101 /* McSPI IP block */
 102 #define CONFIG_SPI
 103
 104 /* GPIO block */
 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 #define CONFIG_SYS_MALLOC_LEN           SZ_32M
 116 #define CONFIG_ENV_OVERWRITE            /* Overwrite ethaddr / serial# */
 117
 118 /* As stated above, the following choices are optional. */
 119
 120 /* We set the max number of command args high to avoid HUSH bugs. */
 121 #define CONFIG_SYS_MAXARGS              64
 122
 123 /* Console I/O Buffer Size */
 124 #define CONFIG_SYS_CBSIZE               1024
 125 /* Boot Argument Buffer Size */
 126 #define CONFIG_SYS_BARGSIZE             CONFIG_SYS_CBSIZE
 127
 128 /*
 129  * When we have SPI, NOR or NAND flash we expect to be making use of
 130  * mtdparts, both for ease of use in U-Boot and for passing information
 131  * on to the Linux kernel.
 132  */
 133 #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
 134 #define CONFIG_MTD_DEVICE               /* Required for mtdparts */
 135 #endif
 136
 137 /*
 138  * Our platforms make use of SPL to initalize the hardware (primarily
 139  * memory) enough for full U-Boot to be loaded. We make use of the general
 140  * SPL framework found under common/spl/.  Given our generally common memory
 141  * map, we set a number of related defaults and sizes here.
 142  */
 143 #if !defined(CONFIG_NOR_BOOT) && \
 144         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
 145
 146 /*
 147  * We also support Falcon Mode so that the Linux kernel can be booted
 148  * directly from SPL. This is not currently available on HS devices.
 149  */
 150
 151 /*
 152  * Place the image at the start of the ROM defined image space (per
 153  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 154  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
 155  * soon as we can so that we can place stack, malloc and BSS there.  We load
 156  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
 157  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
 158  * the default Linux kernel address of 0x80008000 to work with most sized
 159  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
 160  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
 161  * start of DRAM to allow room for all of the above (handled in Kconfig).
 162  */
 163 #ifndef CONFIG_SPL_BSS_START_ADDR
 164 #define CONFIG_SPL_BSS_START_ADDR       0x80a00000
 165 #define CONFIG_SPL_BSS_MAX_SIZE         0x80000         /* 512 KB */
 166 #endif
 167 #ifndef CONFIG_SYS_SPL_MALLOC_START
 168 #define CONFIG_SYS_SPL_MALLOC_START     (CONFIG_SPL_BSS_START_ADDR + \
 169                                          CONFIG_SPL_BSS_MAX_SIZE)
 170 #define CONFIG_SYS_SPL_MALLOC_SIZE      SZ_8M
 171 #endif
 172 #ifndef CONFIG_SPL_MAX_SIZE
 173 #define CONFIG_SPL_MAX_SIZE             (SRAM_SCRATCH_SPACE_ADDR - \
 174                                          CONFIG_SPL_TEXT_BASE)
 175 #endif
 176
 177
 178 /* FAT sd card locations. */
 179 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION      1
 180 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
 181
 182 #ifdef CONFIG_SPL_OS_BOOT
 183 /* FAT */
 184 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME          "uImage"
 185 #define CONFIG_SPL_FS_LOAD_ARGS_NAME            "args"
 186
 187 /* RAW SD card / eMMC */
 188 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x1700  /* address 0x2E0000 */
 189 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR   0x1500  /* address 0x2A0000 */
 190 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS  0x200   /* 256KiB */
 191 #endif
 192
 193 /* General parts of the framework, required. */
 194
 195 #ifdef CONFIG_NAND
 196 #define CONFIG_SPL_NAND_BASE
 197 #define CONFIG_SPL_NAND_DRIVERS
 198 #define CONFIG_SPL_NAND_ECC
 199 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 200 #endif
 201 #endif /* !CONFIG_NOR_BOOT */
 202
 203 /* Generic Environment Variables */
 204
 205 #ifdef CONFIG_CMD_NET
 206 #define NETARGS \
 207         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 208                 "::off\0" \
 209         "nfsopts=nolock\0" \
 210         "rootpath=/export/rootfs\0" \
 211         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 212         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 213         "netargs=setenv bootargs console=${console} " \
 214                 "${optargs} " \
 215                 "root=/dev/nfs " \
 216                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 217                 "ip=dhcp\0" \
 218         "netboot=echo Booting from network ...; " \
 219                 "setenv autoload no; " \
 220                 "dhcp; " \
 221                 "run netloadimage; " \
 222                 "run netloadfdt; " \
 223                 "run netargs; " \
 224                 "bootz ${loadaddr} - ${fdtaddr}\0"
 225 #else
 226 #define NETARGS ""
 227 #endif
 228
 229 #include <config_distro_defaults.h>
 230
 231 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */