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https://github.com/AsahiLinux/u-boot
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42ec247e69
We use to use /dev/mmcbl0p7 as root partition, and pass it to kernel by cmdline, but the mmc number in kernel in not fixed, we need to change the bootargs to adapt it from time to time. We can use the UUID to fix it, the ID is from: https://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/ ARM 32bit: 69dad710-2ce4-4e3c-b16c-21a1d49abed3 ARM 64bit: b921b045-1df0-41c3-af44-4c6f280d3fae Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* (C) Copyright 2016 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _ROCKCHIP_COMMON_H_
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#define _ROCKCHIP_COMMON_H_
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#include <linux/sizes.h>
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#ifndef CONFIG_SPL_BUILD
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#include <config_distro_defaults.h>
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/* First try to boot from SD (index 0), then eMMC (index 1 */
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#ifdef CONFIG_CMD_USB
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#define BOOT_TARGET_DEVICES(func) \
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func(MMC, mmc, 0) \
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func(MMC, mmc, 1) \
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func(USB, usb, 0) \
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func(PXE, pxe, na) \
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func(DHCP, dchp, na)
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#else
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#define BOOT_TARGET_DEVICES(func) \
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func(MMC, mmc, 0) \
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func(MMC, mmc, 1) \
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func(PXE, pxe, na) \
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func(DHCP, dchp, na)
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#endif
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#define CONFIG_RANDOM_UUID
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#ifdef CONFIG_ARM64
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#define ROOT_UUID "B921B045-1DF0-41C3-AF44-4C6F280D3FAE;\0"
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#else
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#define ROOT_UUID "69DAD710-2CE4-4E3C-B16C-21A1D49ABED3;\0"
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#endif
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#define PARTS_DEFAULT \
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"uuid_disk=${uuid_gpt_disk};" \
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"name=loader1,start=32K,size=4000K,uuid=${uuid_gpt_loader1};" \
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"name=reserved1,size=64K,uuid=${uuid_gpt_reserved1};" \
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"name=reserved2,size=4M,uuid=${uuid_gpt_reserved2};" \
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"name=loader2,size=4MB,uuid=${uuid_gpt_loader2};" \
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"name=atf,size=4M,uuid=${uuid_gpt_atf};" \
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"name=boot,size=112M,bootable,uuid=${uuid_gpt_boot};" \
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"name=rootfs,size=-,uuid="ROOT_UUID
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#endif
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#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
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/* SPL @ 32k for 34k
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* u-boot directly after @ 68k for 400k or so
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* ENV @ 992k
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*/
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#define CONFIG_ENV_OFFSET ((1024-32) * 1024)
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#else
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/* SPL @ 32k for ~36k
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* ENV @ 96k
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* u-boot @ 128K
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*/
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#define CONFIG_ENV_OFFSET (96 * 1024)
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#endif
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#define CONFIG_DISPLAY_BOARDINFO_LATE
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#endif /* _ROCKCHIP_COMMON_H_ */
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