mirror of
https://github.com/AsahiLinux/u-boot
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2226ca1734
Now that proper load and execution addresses are set in v1 kwbimage we can use it for loading and booting U-Boot proper. Use the new spl_parse_board_header() function to implement parsing the kwbimage v1 header. Use information from this header to locate offset and size of the U-Boot proper binary, instead of using the legacy U-Boot header which is prepended to the U-Boot proper binary stored at fixed offset. This has the advantage that we do not need to relay on legacy U-Boot header anymore and therefore U-Boot proper binary can be stored at any offset, as is the case when loading & booting U-Boot proper by BootROM. The CONFIG_SYS_U_BOOT_OFFS option is therefore not used by SPL code anymore. Also allow to compile U-Boot SPL without CONFIG_SPL_SPI_FLASH_SUPPORT, CONFIG_SPL_MMC_SUPPORT or CONFIG_SPL_SATA_SUPPORT set. In this case BootROM is used for loading and executing U-Boot proper. This reduces the size of U-Boot's SPL image. By default these config options are enabled and so BootROM loading is not used. In some cases BootROM reads from SPI NOR at lower speed than U-Boot SPL. So people can decide whether they want to have smaller SPL binary at the cost of slower boot. Therefore dependency on CONFIG_SPL_DM_SPI, CONFIG_SPL_SPI_FLASH_SUPPORT, CONFIG_SPL_SPI_LOAD, CONFIG_SPL_SPI_SUPPORT, CONFIG_SPL_DM_GPIO, CONFIG_SPL_DM_MMC, CONFIG_SPL_GPIO_SUPPORT, CONFIG_SPL_LIBDISK_SUPPORT, CONFIG_SPL_MMC_SUPPORT, CONFIG_SPL_SATA_SUPPORT and CONFIG_SPL_LIBDISK_SUPPORT is changed from strict to related "imply" (which can be selectivelly turned off and causes booting via BootROM). Options CONFIG_SYS_SPI_U_BOOT_OFFS, CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR and CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET have to to be set to zero as they define the location where kwbimage header starts. It is the location where BootROM expects start of the kwbimage from which it reads, parses and executes SPL part. The same applies to option CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR, which has to be set to one. Update all config files to set correct values of these options and set CONFIG_SYS_U_BOOT_OFFS to the correct value - the offset where U-Boot proper starts. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2014 Stefan Roese <sr@denx.de>
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*/
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#ifndef _CONFIG_DB_88F6820_AMC_H
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#define _CONFIG_DB_88F6820_AMC_H
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/*
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* High Level Configuration Options (easy to change)
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*/
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#define CONFIG_SYS_TCLK 200000000 /* 200MHz */
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/* USB/EHCI configuration */
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#define CONFIG_EHCI_IS_TDI
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/* Environment in SPI NOR flash */
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#define PHY_ANEG_TIMEOUT 8000 /* PHY needs a longer aneg time */
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/* PCIe support */
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#ifndef CONFIG_SPL_BUILD
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#define CONFIG_PCI_SCAN_SHOW
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#endif
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/* NAND */
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#define CONFIG_SYS_NAND_ONFI_DETECTION
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/* Keep device tree and initrd in lower memory so the kernel can access them */
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"fdt_high=0x10000000\0" \
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"initrd_high=0x10000000\0"
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/* SPL */
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/*
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* Select the boot device here
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*
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* Currently supported are:
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* SPL_BOOT_SPI_NOR_FLASH - Booting via SPI NOR flash
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*
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* MMC is not populated on this board.
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* NAND support may be added in the future.
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*/
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#define SPL_BOOT_SPI_NOR_FLASH 1
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#define CONFIG_SPL_BOOT_DEVICE SPL_BOOT_SPI_NOR_FLASH
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/* Defines for SPL */
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#define CONFIG_SPL_SIZE (140 << 10)
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#define CONFIG_SPL_MAX_SIZE (CONFIG_SPL_SIZE - 0x0030)
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#define CONFIG_SPL_BSS_START_ADDR (0x40000000 + CONFIG_SPL_SIZE)
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#define CONFIG_SPL_BSS_MAX_SIZE (16 << 10)
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#ifdef CONFIG_SPL_BUILD
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#define CONFIG_SYS_MALLOC_SIMPLE
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#endif
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#define CONFIG_SPL_STACK (0x40000000 + ((192 - 16) << 10))
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#define CONFIG_SPL_BOOTROM_SAVE (CONFIG_SPL_STACK + 4)
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#if CONFIG_SPL_BOOT_DEVICE == SPL_BOOT_SPI_NOR_FLASH
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/* SPL related SPI defines */
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#define CONFIG_SYS_U_BOOT_OFFS 0x24000
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#endif
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/*
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* mv-common.h should be defined after CMD configs since it used them
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* to enable certain macros
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*/
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#include "mv-common.h"
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#undef CONFIG_SYS_MAXARGS
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#define CONFIG_SYS_MAXARGS 96
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#endif /* _CONFIG_DB_88F6820_AMC_H */
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