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https://github.com/brain-hackers/u-boot-brain
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![Marek Behún](/assets/img/avatar_default.png)
Make it possible to invoke rescue boot from U-Boot console, without having to press the factory reset button. This is needed when accessing the device remotely, for example. Achieve this by putting rescue command into `bootcmd_rescue` default environment variable and setting some distroboot environment variables to their default values when the factory button is pressed. Rescue boot from console can be invoked by running run bootcmd_rescue Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2017 Marek Behun <marek.behun@nic.cz>
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* Copyright (C) 2016 Tomas Hlavacek <tomas.hlavacek@nic.cz>
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*/
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#ifndef _CONFIG_TURRIS_OMNIA_H
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#define _CONFIG_TURRIS_OMNIA_H
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/*
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* High Level Configuration Options (easy to change)
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*/
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/*
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* TEXT_BASE needs to be below 16MiB, since this area is scrubbed
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* for DDR ECC byte filling in the SPL before loading the main
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* U-Boot into it.
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*/
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#define CONFIG_SYS_TCLK 250000000 /* 250MHz */
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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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/* Keep device tree and initrd in lower memory so the kernel can access them */
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#define RELOCATION_LIMITS_ENV_SETTINGS \
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"fdt_high=0x10000000\0" \
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"initrd_high=0x10000000\0"
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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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#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
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#ifdef CONFIG_MVEBU_SPL_BOOT_DEVICE_SPI
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/* SPL related SPI defines */
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# define CONFIG_SYS_U_BOOT_OFFS CONFIG_SYS_SPI_U_BOOT_OFFS
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#endif
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#ifdef CONFIG_MVEBU_SPL_BOOT_DEVICE_MMC
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/* SPL related MMC defines */
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# define CONFIG_SYS_MMC_U_BOOT_OFFS (160 << 10)
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# define CONFIG_SYS_U_BOOT_OFFS CONFIG_SYS_MMC_U_BOOT_OFFS
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# ifdef CONFIG_SPL_BUILD
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# define CONFIG_FIXED_SDHCI_ALIGNED_BUFFER 0x00180000 /* in SDRAM */
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# endif
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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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/* Include the common distro boot environment */
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#ifndef CONFIG_SPL_BUILD
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#ifdef CONFIG_MMC
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#define BOOT_TARGET_DEVICES_MMC(func) func(MMC, mmc, 0)
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#else
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#define BOOT_TARGET_DEVICES_MMC(func)
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#endif
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#ifdef CONFIG_USB_STORAGE
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#define BOOT_TARGET_DEVICES_USB(func) func(USB, usb, 0)
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#else
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#define BOOT_TARGET_DEVICES_USB(func)
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#endif
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#ifdef CONFIG_SCSI
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#define BOOT_TARGET_DEVICES_SCSI(func) func(SCSI, scsi, 0)
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#else
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#define BOOT_TARGET_DEVICES_SCSI(func)
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#endif
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#define BOOT_TARGET_DEVICES(func) \
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BOOT_TARGET_DEVICES_MMC(func) \
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BOOT_TARGET_DEVICES_SCSI(func) \
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BOOT_TARGET_DEVICES_USB(func) \
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func(PXE, pxe, na) \
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func(DHCP, dhcp, na)
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#define KERNEL_ADDR_R __stringify(0x1000000)
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#define FDT_ADDR_R __stringify(0x2000000)
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#define RAMDISK_ADDR_R __stringify(0x2200000)
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#define SCRIPT_ADDR_R __stringify(0x1800000)
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#define PXEFILE_ADDR_R __stringify(0x1900000)
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#define LOAD_ADDRESS_ENV_SETTINGS \
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"kernel_addr_r=" KERNEL_ADDR_R "\0" \
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"fdt_addr_r=" FDT_ADDR_R "\0" \
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"ramdisk_addr_r=" RAMDISK_ADDR_R "\0" \
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"scriptaddr=" SCRIPT_ADDR_R "\0" \
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"pxefile_addr_r=" PXEFILE_ADDR_R "\0"
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#include <config_distro_bootcmd.h>
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/*
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* The factory reset bootcommand on Omnia first sets all the front LEDs to green
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* and then tries to load the rescue image from SPI flash memory and boot it
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*/
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#define TURRIS_OMNIA_BOOTCMD_RESCUE \
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"i2c dev 2; " \
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"i2c mw 0x2a.1 0x3 0x1c 1; " \
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"i2c mw 0x2a.1 0x4 0x1c 1; " \
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"mw.l 0x01000000 0x00ff000c; " \
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"i2c write 0x01000000 0x2a.1 0x5 4 -s; " \
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"setenv bootargs \"earlyprintk console=ttyS0,115200" \
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" omniarescue=$omnia_reset rescue_mode=$omnia_reset\"; " \
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"sf probe; " \
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"sf read 0x1000000 0x100000 0x700000; " \
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"lzmadec 0x1000000 0x1700000; " \
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"if gpio input gpio@71_4; then " \
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"bootm 0x1700000#sfp; " \
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"else " \
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"bootm 0x1700000; " \
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"fi; " \
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"bootz 0x1000000"
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#define CONFIG_EXTRA_ENV_SETTINGS \
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RELOCATION_LIMITS_ENV_SETTINGS \
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LOAD_ADDRESS_ENV_SETTINGS \
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"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
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"console=ttyS0,115200\0" \
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"ethact=ethernet@34000\0" \
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"bootcmd_rescue=" TURRIS_OMNIA_BOOTCMD_RESCUE "\0" \
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BOOTENV
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#endif /* CONFIG_SPL_BUILD */
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#endif /* _CONFIG_TURRIS_OMNIA_H */
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