Package: flash-kernel
Version: 3.79
Severity: wishlist
Tags: patch
Dear Maintainer,
The SolidRun CuBox has very good support in Mainline Linux.
Thus it is a great candidate for supporting it in Debian.
As I see it there are only 2 blockers right now:
- missing conifg options in the kernel package
- missing entry in flash-kernel
In this bug I'd like to solve the latter.
The board comes with a pretty old version of U-Boot that does support neither
bootz nor distro_boot.
This is why we need:
- a custom boot.scr
- uImage with appended DTB
- uInitrd
- a way to set root= cmdline option
I have come up with the database entry below, and this preliminary boot-script:
setenv loadaddr 0x02000000
setenv loadaddrrd 0x20000000
setenv bootargs console=ttyS0,115200n8
${fstype}load ${device_name} 0:${partition} ${loadaddr} /boot/uImage
${fstype}load ${device_name} 0:${partition} ${loadaddrrd} /boot/uInitrd
bootm $loadaddr $loadaddrrd
I am running U-Boot 2009.08-dirty (Mar 09 2013 - 18:15:45) Marvell version:
5.4.4 NQ SR1.
It comes with a prepopulated bootcmd environment variable that tries out:
- usb sata(ide) mmc
- partitions 1,2
- directores / and /boot
to find a boot.scr.
At the time of loading it, these variables are set accordingly:
device_name, partition, directory, fstype
which can be used in our boot.scr.
One important thing that is missing, is bootargs!
We need to set: console, root, rootfstype, rootwait
- rootfstype could be gathered from fstype
- any ideas how to generate the root= option?
Ideally we could use UUID= there!
Or does Bootloader-Sets-Incorrect-Root: yes help here?
Please let me know if I can provide any additional details, or if you have
something for me to test.
One note about testing: Can I get flash-kernel to work with a custom built
kernel, as long as the necessary config options are not enabled in -armmp?
Yours sincerely
Josua Mayer
-- System Information:
Debian Release: 9.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: armhf (armv7l)
Kernel: Linux 4.9.45-dove-cubox (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages flash-kernel depends on:
ii debconf [debconf-2.0] 1.5.61
ii devio 1.2-1.2+b1
ii initramfs-tools 0.130
ii linux-base 4.5
ii mtd-utils 1:2.0.0-1
ii ucf 3.0036
Versions of packages flash-kernel recommends:
ii u-boot-tools 2016.11+dfsg1-4
flash-kernel suggests no packages.
-- Configuration Files:
/etc/flash-kernel/db changed:
Machine: SolidRun CuBox
Kernel-Flavors: armmp
DTB-Id: dove-cubox.dtb
DTB-Append: yes
Boot-Kernel-Path: /boot/uImage
Boot-Initrd-Path: /boot/uInitrd
U-Boot-Kernel-Address: 0x00008000
U-Boot-Initrd-Address: 0x0
Boot-Script-Path: /boot/boot.scr
U-Boot-Script-Name: bootscr.cubox
Required-Packages: u-boot-tools
Bootloader-Sets-Incorrect-Root: yes
Machine: SolidRun CuBox (Engineering Sample)
Kernel-Flavors: armmp
DTB-Id: dove-cubox-es.dtb
DTB-Append: yes
Boot-Kernel-Path: /boot/uImage
Boot-Initrd-Path: /boot/uInitrd
U-Boot-Kernel-Address: 0x00008000
U-Boot-Initrd-Address: 0x0
Boot-Script-Path: /boot/boot.scr
U-Boot-Script-Name: bootscr.cubox
Required-Packages: u-boot-tools
Bootloader-Sets-Incorrect-Root: yes
-- debconf information excluded
