Bug#860304: Aw: Re: Bug#860304: [BUG 860304] flash-kernel: Incorrect installation path for dtbs
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
On 08/25/2017 05:31 PM, Vagrant Cascadian wrote:
> On 2017-08-24, Heinrich Schuchardt wrote:
>> is there really any need to keep /boot/dtbs/VERSION/ if we have
>> /boot/dtbs/VERSION/VENDOR/?
>
> Yes, if the u-boot version on the board sets fdtfile to BOARD.dtb.
>
> We have no way of knowing from flash-kernel what the u-boot on the
> board will set for fdtfile. The fdtfile variable may be
> VENDOR/BOARD.dtb or it may just be BOARD.dtb. In some boards,
> depending on which version of u-boot you're using, it could be
> either one.
>
> Supporting both is the only real way I can think of to handle those
> two common cases.
>
>
> live well, vagrant
>
I just want to make sure that we agree on the way we store and handle
the vendor directory.
In linux-next I found these two files:
arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
arch/arm/boot/dts/bcm2837-rpi-3-b.dts
both with model = "Raspberry Pi 3 Model B".
I suggest to have a single entry in all.db looking like this
Machine: Raspberry Pi 3 Model B
Kernel-Flavors: arm64 armmp armmp-lpae
DTB-Id: broadcom/bcm2837-rpi-3-b.dtb
U-Boot-Script-Name: bootscr.uboot-generic
Required-Packages: u-boot-tools
Boot-Script-Path: /boot/boot.scr
where the vendor directory is encoded in DTB-Id.
On a 64bit system flash-kernel will copy
/usr/lib/linux-image-4.12.0-1-arm64/broadcom/bcm2837-rpi-3-b.dtb to
/boot/dtbs/4.12.0-1-arm64/bcm2837-rpi-3-b.dtb.
It creates a link to
/boot/dtbs/4.12.0-1-arm64/broadcom/bcm2837-rpi-3-b.dtb.
On a 32bit system flash-kernel we copy
/usr/lib/linux-image-4.12.0-1-armmp/bcm2837-rpi-3-b.dtb to
/boot/dtbs/4.12.0-1-armmp/bcm2837-rpi-3-b.dtb.
We create a link to
/boot/dtbs/4.12.0-1-armmp/broadcom/bcm2837-rpi-3-b.dtb
because all.db has an entry with vendor directory.
For a 32bit only system we will have an entry like
Machine: Wandboard i.MX6 Quad Board
Kernel-Flavors: armmp
DTB-Id: imx6q-wandboard.dtb
Boot-Script-Path: /boot/boot.scr
U-Boot-Script-Name: bootscr.wandboard
Required-Packages: u-boot-tools
with no vendor directory given.
On a 32bit system flash-kernel we copy
/usr/lib/linux-image-4.12.0-1-armmp/imx6q-wandboard.dtb to
/boot/dtbs/4.12.0-1-arm64/imx6q-wandboard.dtb.
We do not create a link to
/boot/dtbs/4.12.0-1-armmp/freescale/imx6q-wandboard.dtb
because no vendor directory is provided in all.db.
Does this match your view?
Best regards
Heinrich
-----BEGIN PGP SIGNATURE-----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=GGNK
-----END PGP SIGNATURE-----
Reply to: