include/configs/ti_armv7_common.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * ti_armv7_common.h
   4  *
   5  * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
   6  *
   7  * The various ARMv7 SoCs from TI all share a number of IP blocks when
   8  * implementing a given feature.  Rather than define these in every
   9  * board or even SoC common file, we define a common file to be re-used
  10  * in all cases.  While technically true that some of these details are
  11  * configurable at the board design, they are common throughout SoC
  12  * reference platforms as well as custom designs and become de facto
  13  * standards.
  14  */
  15
  16 #ifndef __CONFIG_TI_ARMV7_COMMON_H__
  17 #define __CONFIG_TI_ARMV7_COMMON_H__
  18
  19 /*
  20  * We setup defaults based on constraints from the Linux kernel, which should
  21  * also be safe elsewhere.  We have the default load at 32MB into DDR (for
  22  * the kernel), FDT above 128MB (the maximum location for the end of the
  23  * kernel), and the ramdisk 512KB above that (allowing for hopefully never
  24  * seen large trees).  We say all of this must be within the first 256MB
  25  * as that will normally be within the kernel lowmem and thus visible via
  26  * bootm_size and we only run on platforms with 256MB or more of memory.
  27  *
  28  * As a temporary storage for DTBO blobs (which should be applied into DTB
  29  * blob), we use the location 15.5 MB above the ramdisk. If someone wants to
  30  * use ramdisk bigger than 15.5 MB, then DTBO can be loaded and applied to DTB
  31  * blob before loading the ramdisk, as DTBO location is only used as a temporary
  32  * storage, and can be re-used after 'fdt apply' command is done.
  33  */
  34 #define DEFAULT_LINUX_BOOT_ENV \
  35         "loadaddr=0x82000000\0" \
  36         "kernel_addr_r=0x82000000\0" \
  37         "fdtaddr=0x88000000\0" \
  38         "dtboaddr=0x89000000\0" \
  39         "fdt_addr_r=0x88000000\0" \
  40         "fdtoverlay_addr_r=0x89000000\0" \
  41         "rdaddr=0x88080000\0" \
  42         "ramdisk_addr_r=0x88080000\0" \
  43         "scriptaddr=0x80000000\0" \
  44         "pxefile_addr_r=0x80100000\0" \
  45         "bootm_size=0x10000000\0" \
  46         "boot_fdt=try\0"
  47
  48 #define DEFAULT_FIT_TI_ARGS \
  49         "boot_fit=0\0" \
  50         "addr_fit=0x90000000\0" \
  51         "name_fit=fitImage\0" \
  52         "update_to_fit=setenv loadaddr ${addr_fit}; setenv bootfile ${name_fit}\0" \
  53         "get_overlaystring=" \
  54                 "for overlay in $name_overlays;" \
  55                 "do;" \
  56                 "setenv overlaystring ${overlaystring}'#'${overlay};" \
  57                 "done;\0" \
  58         "get_fit_config=setexpr name_fit_config gsub / _ conf-${fdtfile}\0" \
  59         "run_fit=run get_fit_config; bootm ${addr_fit}#${name_fit_config}${overlaystring}\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 #define CFG_SYS_SDRAM_BASE              0x80000000
  69
  70 /* If DM_I2C, enable non-DM I2C support */
  71
  72 /*
  73  * The following are general good-enough settings for U-Boot.  We set a
  74  * large malloc pool as we generally have a lot of DDR, and we opt for
  75  * function over binary size in the main portion of U-Boot as this is
  76  * generally easily constrained later if needed.  We enable the config
  77  * options that give us information in the environment about what board
  78  * we are on so we do not need to rely on the command prompt.  We set a
  79  * console baudrate of 115200 and use the default baud rate table.
  80  */
  81
  82 /* As stated above, the following choices are optional. */
  83
  84 /* Console I/O Buffer Size */
  85 /*
  86  * When we have SPI, NOR or NAND flash we expect to be making use of
  87  * mtdparts, both for ease of use in U-Boot and for passing information
  88  * on to the Linux kernel.
  89  */
  90
  91 /*
  92  * Our platforms make use of SPL to initalize the hardware (primarily
  93  * memory) enough for full U-Boot to be loaded. We make use of the general
  94  * SPL framework found under common/spl/.  Given our generally common memory
  95  * map, we set a number of related defaults and sizes here.
  96  */
  97 #if !defined(CONFIG_NOR_BOOT) && \
  98         !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
  99
 100 /*
 101  * We also support Falcon Mode so that the Linux kernel can be booted
 102  * directly from SPL. This is not currently available on HS devices.
 103  */
 104
 105 /*
 106  * Place the image at the start of the ROM defined image space (per
 107  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
 108  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
 109  * soon as we can so that we can place stack, malloc and BSS there.  We load
 110  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
 111  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
 112  * the default Linux kernel address of 0x80008000 to work with most sized
 113  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
 114  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
 115  * start of DRAM to allow room for all of the above (handled in Kconfig).
 116  */
 117
 118 #ifdef CONFIG_SPL_OS_BOOT
 119 /* FAT */
 120
 121 /* RAW SD card / eMMC */
 122 #endif
 123
 124 /* General parts of the framework, required. */
 125
 126 #ifdef CONFIG_MTD_RAW_NAND
 127 #define CFG_SYS_NAND_U_BOOT_START       CONFIG_TEXT_BASE
 128 #endif
 129 #endif /* !CONFIG_NOR_BOOT */
 130
 131 /* Generic Environment Variables */
 132
 133 #ifdef CONFIG_CMD_NET
 134 #define NETARGS \
 135         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 136                 "::off\0" \
 137         "nfsopts=nolock\0" \
 138         "rootpath=/export/rootfs\0" \
 139         "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 140         "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 141         "netargs=setenv bootargs console=${console} " \
 142                 "${optargs} " \
 143                 "root=/dev/nfs " \
 144                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 145                 "ip=dhcp\0" \
 146         "netboot=echo Booting from network ...; " \
 147                 "setenv autoload no; " \
 148                 "dhcp; " \
 149                 "run netloadimage; " \
 150                 "run netloadfdt; " \
 151                 "run netargs; " \
 152                 "bootz ${loadaddr} - ${fdtaddr}\0"
 153 #else
 154 #define NETARGS ""
 155 #endif
 156
 157 #ifdef CONFIG_ARM64
 158 #ifdef CONFIG_DISTRO_DEFAULTS
 159 #ifdef CONFIG_CMD_PXE
 160 # define BOOT_TARGET_PXE(func) func(PXE, pxe, na)
 161 #else
 162 # define BOOT_TARGET_PXE(func)
 163 #endif
 164
 165 #ifdef CONFIG_CMD_DHCP
 166 # define BOOT_TARGET_DHCP(func) func(DHCP, dhcp, na)
 167 #else
 168 # define BOOT_TARGET_DHCP(func)
 169 #endif
 170
 171 #ifdef CONFIG_CMD_MMC
 172 #define BOOT_TARGET_MMC(func) \
 173         func(TI_MMC, ti_mmc, na) \
 174         func(MMC, mmc, 0) \
 175         func(MMC, mmc, 1)
 176 #else
 177 #define BOOT_TARGET_MMC(func)
 178 #endif
 179
 180 #define BOOTENV_DEV_TI_MMC(devtypeu, devtypel, instance)
 181
 182 #define BOOTENV_DEV_NAME_TI_MMC(devtyeu, devtypel, instance)            \
 183         "ti_mmc "
 184
 185 #ifdef CONFIG_CMD_USB
 186 # define BOOT_TARGET_USB(func)  func(USB, usb, 0)
 187 #else
 188 # define BOOT_TARGET_USB(func)
 189 #endif
 190
 191 #define BOOT_TARGET_DEVICES(func) \
 192         BOOT_TARGET_MMC(func) \
 193         BOOT_TARGET_USB(func) \
 194         BOOT_TARGET_PXE(func) \
 195         BOOT_TARGET_DHCP(func)
 196
 197 #include <config_distro_bootcmd.h>
 198
 199 /* Incorporate settings into the U-Boot environment */
 200 #define CFG_EXTRA_ENV_SETTINGS                                  \
 201         BOOTENV
 202
 203 #endif /* CONFIG_DISTRO_DEFAULTS */
 204
 205 #endif /* CONFIG_ARM64 */
 206
 207 #endif  /* __CONFIG_TI_ARMV7_COMMON_H__ */