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https://github.com/AsahiLinux/u-boot
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3919aa1722
This patch configures U-Boot SPL for DHCOR SoM to permit DFU upload of
SPL and subsequent u-boot.itb for recovery or commissioning purposes.
To start U-Boot on DHCOR based board, e.g. Avenger96, proceed as follows:
- Install dfu-util on the host PC (in debian this is package 'dfu-util')
- Power off the Avenger96 board.
- Connect both USB-serial console and USB-OTG microB ports to host PC.
- Switch Avenger96 to USB boot mode -- BOOT0..2 switches all set to 0.
- Power on the Avenger96 board.
- Verify using '$ dmesg' that a new device has been detected as follows:
New USB device found, idVendor=0483, idProduct=df11, bcdDevice= 2.00
New USB device strings: Mfr=1, Product=2, SerialNumber=3
Product: DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000
Manufacturer: STMicroelectronics
- Upload U-Boot SPL:
$ dfu-util -a 1 -D u-boot-spl.stm32
- Upload U-Boot proper:
$ dfu-util -a 0 -D u-boot.itb
- At this point, SPL will wait for user to press "Ctrl-C" on serial
console. When ready to interact with U-Boot, press Ctrl-C to start
the bootloader.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
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/*
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* Copyright (C) 2020 Marek Vasut <marex@denx.de>
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*
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* Configuration settings for the DH STM32MP15x SoMs
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*/
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#ifndef __CONFIG_STM32MP15_DH_DHSOM_H__
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#define __CONFIG_STM32MP15_DH_DHSOM_H__
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/* PHY needs a longer autoneg timeout */
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#define PHY_ANEG_TIMEOUT 20000
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#ifdef CONFIG_SPL_BUILD
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"dfu_alt_info_ram=u-boot.itb ram " \
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__stringify(CONFIG_SPL_LOAD_FIT_ADDRESS) \
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" 0x800000\0"
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#endif
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#define STM32MP_BOARD_EXTRA_ENV \
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"usb_pgood_delay=1000\0" \
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"update_sf=" /* Erase SPI NOR and install U-Boot from SD */ \
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"setexpr loadaddr1 ${loadaddr} + 0x1000000 && " \
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"load mmc 0:4 ${loadaddr1} /boot/u-boot-spl.stm32 && " \
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"env set filesize1 ${filesize} && " \
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"load mmc 0:4 ${loadaddr} /boot/u-boot.itb && " \
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"sf probe && sf erase 0 0x200000 && " \
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"sf update ${loadaddr1} 0 ${filesize1} && " \
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"sf update ${loadaddr1} 0x40000 ${filesize1} && " \
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"sf update ${loadaddr} 0x80000 ${filesize} && " \
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"env set filesize1 && env set loadaddr1\0"
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#include <configs/stm32mp15_common.h>
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#define CONFIG_SPL_TARGET "u-boot.itb"
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#endif
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