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https://github.com/AsahiLinux/u-boot
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fb2b320593
Make the section protected by CONFIG_DISTRO_DEFAULTS macro clear. Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Signed-off-by: Nishanth Menon <nm@ti.com>
207 lines
6.7 KiB
C
207 lines
6.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* ti_armv7_common.h
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*
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* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
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*
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* The various ARMv7 SoCs from TI all share a number of IP blocks when
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* implementing a given feature. Rather than define these in every
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* board or even SoC common file, we define a common file to be re-used
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* in all cases. While technically true that some of these details are
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* configurable at the board design, they are common throughout SoC
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* reference platforms as well as custom designs and become de facto
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* standards.
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*/
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#ifndef __CONFIG_TI_ARMV7_COMMON_H__
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#define __CONFIG_TI_ARMV7_COMMON_H__
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/*
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* We setup defaults based on constraints from the Linux kernel, which should
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* also be safe elsewhere. We have the default load at 32MB into DDR (for
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* the kernel), FDT above 128MB (the maximum location for the end of the
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* kernel), and the ramdisk 512KB above that (allowing for hopefully never
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* seen large trees). We say all of this must be within the first 256MB
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* as that will normally be within the kernel lowmem and thus visible via
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* bootm_size and we only run on platforms with 256MB or more of memory.
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*
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* As a temporary storage for DTBO blobs (which should be applied into DTB
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* blob), we use the location 15.5 MB above the ramdisk. If someone wants to
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* use ramdisk bigger than 15.5 MB, then DTBO can be loaded and applied to DTB
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* blob before loading the ramdisk, as DTBO location is only used as a temporary
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* storage, and can be re-used after 'fdt apply' command is done.
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*/
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#define DEFAULT_LINUX_BOOT_ENV \
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"loadaddr=0x82000000\0" \
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"kernel_addr_r=0x82000000\0" \
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"fdtaddr=0x88000000\0" \
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"dtboaddr=0x89000000\0" \
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"fdt_addr_r=0x88000000\0" \
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"fdtoverlay_addr_r=0x89000000\0" \
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"rdaddr=0x88080000\0" \
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"ramdisk_addr_r=0x88080000\0" \
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"scriptaddr=0x80000000\0" \
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"pxefile_addr_r=0x80100000\0" \
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"bootm_size=0x10000000\0" \
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"boot_fdt=try\0"
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#define DEFAULT_FIT_TI_ARGS \
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"boot_fit=0\0" \
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"addr_fit=0x90000000\0" \
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"name_fit=fitImage\0" \
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"update_to_fit=setenv loadaddr ${addr_fit}; setenv bootfile ${name_fit}\0" \
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"get_overlaystring=" \
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"for overlay in $name_overlays;" \
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"do;" \
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"setenv overlaystring ${overlaystring}'#'${overlay};" \
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"done;\0" \
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"get_fit_config=setexpr name_fit_config gsub / _ conf-${fdtfile}\0" \
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"run_fit=run get_fit_config; bootm ${addr_fit}#${name_fit_config}${overlaystring}\0" \
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/*
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* DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
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* we say (for simplicity) that we have 1 bank, always, even when
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* we have more. We always start at 0x80000000, and we place the
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* initial stack pointer in our SRAM. Otherwise, we can define
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* CONFIG_NR_DRAM_BANKS before including this file.
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*/
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#define CFG_SYS_SDRAM_BASE 0x80000000
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/* If DM_I2C, enable non-DM I2C support */
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/*
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* The following are general good-enough settings for U-Boot. We set a
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* large malloc pool as we generally have a lot of DDR, and we opt for
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* function over binary size in the main portion of U-Boot as this is
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* generally easily constrained later if needed. We enable the config
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* options that give us information in the environment about what board
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* we are on so we do not need to rely on the command prompt. We set a
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* console baudrate of 115200 and use the default baud rate table.
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*/
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/* As stated above, the following choices are optional. */
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/* Console I/O Buffer Size */
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/*
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* When we have SPI, NOR or NAND flash we expect to be making use of
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* mtdparts, both for ease of use in U-Boot and for passing information
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* on to the Linux kernel.
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*/
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/*
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* Our platforms make use of SPL to initalize the hardware (primarily
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* memory) enough for full U-Boot to be loaded. We make use of the general
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* SPL framework found under common/spl/. Given our generally common memory
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* map, we set a number of related defaults and sizes here.
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*/
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#if !defined(CONFIG_NOR_BOOT) && \
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!(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
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/*
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* We also support Falcon Mode so that the Linux kernel can be booted
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* directly from SPL. This is not currently available on HS devices.
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*/
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/*
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* Place the image at the start of the ROM defined image space (per
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* CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
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* downloaded image area minus 1KiB for scratch space. We initalize DRAM as
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* soon as we can so that we can place stack, malloc and BSS there. We load
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* U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
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* with older SPLs). We have our BSS be placed 2MiB after this, to allow for
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* the default Linux kernel address of 0x80008000 to work with most sized
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* kernels, in the Falcon Mode case. We have the SPL malloc pool at the end
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* of the BSS area. We suggest that the stack be placed at 32MiB after the
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* start of DRAM to allow room for all of the above (handled in Kconfig).
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*/
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#ifdef CONFIG_SPL_OS_BOOT
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/* FAT */
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/* RAW SD card / eMMC */
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#endif
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/* General parts of the framework, required. */
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#ifdef CONFIG_MTD_RAW_NAND
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#define CFG_SYS_NAND_U_BOOT_START CONFIG_TEXT_BASE
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#endif
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#endif /* !CONFIG_NOR_BOOT */
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/* Generic Environment Variables */
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#ifdef CONFIG_CMD_NET
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#define NETARGS \
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"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
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"::off\0" \
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"nfsopts=nolock\0" \
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"rootpath=/export/rootfs\0" \
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"netloadimage=tftp ${loadaddr} ${bootfile}\0" \
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"netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
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"netargs=setenv bootargs console=${console} " \
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"${optargs} " \
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"root=/dev/nfs " \
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"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
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"ip=dhcp\0" \
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"netboot=echo Booting from network ...; " \
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"setenv autoload no; " \
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"dhcp; " \
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"run netloadimage; " \
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"run netloadfdt; " \
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"run netargs; " \
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"bootz ${loadaddr} - ${fdtaddr}\0"
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#else
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#define NETARGS ""
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#endif
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#ifdef CONFIG_ARM64
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#ifdef CONFIG_DISTRO_DEFAULTS
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#ifdef CONFIG_CMD_PXE
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# define BOOT_TARGET_PXE(func) func(PXE, pxe, na)
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#else
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# define BOOT_TARGET_PXE(func)
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#endif
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#ifdef CONFIG_CMD_DHCP
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# define BOOT_TARGET_DHCP(func) func(DHCP, dhcp, na)
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#else
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# define BOOT_TARGET_DHCP(func)
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#endif
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#ifdef CONFIG_CMD_MMC
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#define BOOT_TARGET_MMC(func) \
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func(TI_MMC, ti_mmc, na) \
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func(MMC, mmc, 0) \
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func(MMC, mmc, 1)
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#else
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#define BOOT_TARGET_MMC(func)
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#endif
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#define BOOTENV_DEV_TI_MMC(devtypeu, devtypel, instance)
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#define BOOTENV_DEV_NAME_TI_MMC(devtyeu, devtypel, instance) \
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"ti_mmc "
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#ifdef CONFIG_CMD_USB
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# define BOOT_TARGET_USB(func) func(USB, usb, 0)
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#else
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# define BOOT_TARGET_USB(func)
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#endif
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#define BOOT_TARGET_DEVICES(func) \
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BOOT_TARGET_MMC(func) \
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BOOT_TARGET_USB(func) \
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BOOT_TARGET_PXE(func) \
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BOOT_TARGET_DHCP(func)
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#include <config_distro_bootcmd.h>
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/* Incorporate settings into the U-Boot environment */
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#define CFG_EXTRA_ENV_SETTINGS \
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BOOTENV
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#endif /* CONFIG_DISTRO_DEFAULTS */
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#endif /* CONFIG_ARM64 */
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#endif /* __CONFIG_TI_ARMV7_COMMON_H__ */
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