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configs/orangepi_r1_defconfig: change to GPT partitions for root=PARTLABEL support

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GPT provides partition labels, which can be used to tell the kernel to find
the rootfs based on it (root=PARTLABEL=rootfs) as a nicer/more extensible
solution than the MBR disk signature / PARTUUID.

When using GPT, the name of the partition in genimage.cfg is used as the
label for that partition.

The default GPT partition table location unfortunately conflicts with the
SPL location, so move the 16KB GPT table after it.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[yann.morin.1998@free.fr: add the comment about 'rootfs']
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Peter Korsgaard 2021-01-25 09:11:30 +01:00 committed by Yann E. MORIN
parent 8beee9309f
commit 38d04e6b13
2 changed files with 8 additions and 4 deletions
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2
board/orangepi/orangepi-r1/boot.cmd
View File

@ -1,6 +1,6 @@
setenv fdt_high ffffffff
setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=feedc0de-02 rootwait
setenv bootargs console=ttyS0,115200 earlyprintk root=PARTLABEL=rootfs rootwait
fatload mmc 0 $kernel_addr_r zImage
fatload mmc 0 $fdt_addr_r sun8i-h2-plus-orangepi-r1.dtb

10
board/orangepi/orangepi-r1/genimage.cfg
View File

@ -13,15 +13,17 @@ image boot.vfat {
image sdcard.img {
hdimage {
# for root=PARTUUID=feedc0de-02 support
disk-signature = 0xfeedc0de
# for root=PARTLABEL support
gpt = true
# default GPT location conflicts with spl, move it after
gpt-location = 1M
}
partition u-boot {
in-partition-table = "no"
image = "u-boot-sunxi-with-spl.bin"
offset = 8192
size = 1040384 # 1MB - 8192
size = 1056768 # 1MB - 8192 + 16384 (GPT)
}
partition boot {
@ -30,6 +32,8 @@ image sdcard.img {
image = "boot.vfat"
}
# 'rootfs' will be used as the partition label, used
# with root=PARTLABEL=rootfs kernel commadn line
partition rootfs {
partition-type = 0x83
image = "rootfs.ext4"