Currently, when BR2_LINUX_KERNEL_INSTALL_TARGET=y is selected, issuing
a "saveenv" command in the U-Boot prompt may lead to rootfs corruption.
When BR2_LINUX_KERNEL_INSTALL_TARGET is not selected, then
board/freescale/common/imx/genimage.cfg.template is used as per the logic
inside board/freescale/common/imx/post-image.sh.
board/freescale/common/imx/genimage.cfg.template correctly puts the
rootfs at a safe offset.
With BR2_LINUX_KERNEL_INSTALL_TARGET=y, then
board/freescale/common/imx/genimage.cfg.template_no_boot_part or
board/freescale/common/imx/genimage.cfg.template_no_boot_part_spl
are used and no offset to the rootfs is given, which may cause U-Boot
environment area to write into the rootfs area, causing the rootfs
corruption.
Avoid this problem by placing the rootfs at an 8MB offset, just like
it is done in board/freescale/common/imx/genimage.cfg.
Tested on a imx6qp-wandboard and also on a custom imx6ull based board.
"saveenv" does not corrupt the rootfs anymore after this change.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
For boards like imx7d-pico, u-boot.img changes to u-boot-dtb.img in
U-Boot v2019.07. Therefore, we need to pick u-boot.img or u-boot-dtb.img
depending on the board configuration.
Just like was done in commit 52344e556f for the generic genimage
template, replace the U-Boot file name with UBOOTBIN, which is set
according to the BR2_TARGET_UBOOT_FORMAT_* option. We also need to set
the correct value for this variable for the u-boot.img and
u-boot-dtb.img cases.
While we're at it, rename the partition from 'u-boot-img' to 'u-boot',
to stay consistent with the generic genimage template.
Signed-off-by: Joris Offouga <offougajoris@gmail.com>
[Arnout: correct u-boot.img condition, rework commit log]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Modern U-Boot assumes a layout where the first partition is an ext2 and
the kernel and dtb can be found in /boot. In other words, a layout
without boot partition.
Add a genimage.cfg template for the freescale defconfigs with such a
layout.
For now, only the layout with SPL+u-boot.img is added. It's unlikely that
the u-boot.imx approach will be used.
Signed-off-by: Joris Offouga <offougajoris@gmail.com>
Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Tested-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
