Feature #11677: Test hardware support with Debian on ARM chromebook

Feature #11677

Test hardware support with Debian on ARM chromebook

Added by Dr_Whax 2016-08-20 12:19:20 . Updated 2019-08-31 13:56:15 .

Status:

Resolved

Priority:

Normal

Assignee:

Category:

Target version:

Start date:

2016-08-20

Due date:

% Done:

10%

Feature Branch:

Type of work:

Research

Blueprint:

Starter:

Affected tool:

Deliverable for:

Description

We want to test hardware support with debian on ARM chromebooks, this specific model is an Chromebook c201.

Subtasks

History

#1 Updated by LABRADOR 2017-01-28 16:05:45

Chromebook Asus C201 (veyron-speedy) w/ libreboot

CPU: Rockchip RK3288
RAM: 4GB

works with Debian testing (since mainline kernel 4.8):

$ uname -a
Linux generic 4.9.0-1-armmp-lpae #1 SMP Debian 4.9.2-2 (2017-01-12) armv7l GNU/Linux

working:

Touchpad (manually insmod […]elan_i2c.ko)
Wifi (firmware-brcm80211 from non-free)

flaws:

eMMC support still (linux 4.9) unreliable (cf. https://wiki.debian.org/InstallingDebianOn/Asus/C201#Mainline_Linux_Kernel)

Kernel installation procedure (cf. https://wiki.debian.org/InstallingDebianOn/Asus/C201#Mainline_Linux_Kernel):
[/boot is part of rootfs, /dev/mmcblk0p2 is not mounted]

# cgpt show /dev/mmcblk0
       start        size    part  contents
           0           1          PMBR (Boot GUID: C75051E3-15D4-B24C-AE5E-4011F51A74AE)
           1           1          Pri GPT header
           2          32          Pri GPT table
     4476992    26275776       1  Label: "STATE"
                                  Type: Linux data
                                  UUID: 0E35E859-6F3E-1449-B5D2-BA81F89340DE
       20480       65504       2  Label: "KERN-A"
                                  Type: ChromeOS kernel
                                  UUID: 5F800574-E6D5-E744-83D7-8D4480686376
                                  Attr: priority=15 tries=5 successful=1
     4476928          32       3  Label: "ROOT-A"
                                  Type: ChromeOS rootfs
                                  UUID: 0A33BE8A-CFE7-8D45-9787-31AE05B7882C
       85984          32       4  Label: "KERN-B"
                                  Type: ChromeOS kernel
                                  UUID: 198DFC6C-A67E-1543-B8A1-A5A5D81355D2
                                  Attr: priority=0 tries=0 successful=0
      282624          32       5  Label: "ROOT-B"
                                  Type: ChromeOS rootfs
                                  UUID: 86304895-396C-BE49-8E8D-D3DC0199E198
       16448           1       6  Label: "KERN-C"
                                  Type: ChromeOS kernel
                                  UUID: CB9BDECB-1C9D-CD43-A17F-CA434AAED815
                                  Attr: priority=0 tries=0 successful=0
       16449           1       7  Label: "ROOT-C"
                                  Type: ChromeOS rootfs
                                  UUID: 91C78600-7DED-5D4E-BE46-4AFE8A64BABB
       86016       32768       8  Label: "OEM"
                                  Type: Linux data
                                  UUID: 29EE74F6-63D0-7C47-87CF-A864C666F7AD
       16450           1       9  Label: "reserved"
                                  Type: ChromeOS reserved
                                  UUID: 017E3776-32B4-3C44-AFE1-5D013E7C3054
       16451           1      10  Label: "reserved"
                                  Type: ChromeOS reserved
                                  UUID: 88BE3A30-5B96-DD45-BA10-4D54BEC90494
          64       16384      11  Label: "RWFW"
                                  Type: ChromeOS firmware
                                  UUID: 148731FB-76B7-214C-946A-657DBB577EC8
      249856       32768      12  Label: "EFI-SYSTEM"
                                  Type: EFI System Partition
                                  UUID: C75051E3-15D4-B24C-AE5E-4011F51A74AE
    30785503          32          Sec GPT table
    30785535           1          Sec GPT header

# cp /usr/lib/linux-image-4.9.0-1-armmp-lpae/rk3288-veyron-speedy.dtb /boot/
# cat /boot/debian-4.9.0-1.its
/dts-v1/;

/ {
    description = "Linux kernel image with one or more FDT blobs";
    #address-cells = <1>;
    images {
        kernel@1{
            description = "vmlinuz";
            data = /incbin/("vmlinuz-4.9.0-1-armmp-lpae");
            type = "kernel_noload";
            arch = "arm";
            os = "linux";
            compression = "none";
            hash@1{
                algo = "sha1";
            };
        };
        fdt@1{
            description = "dtb";
            data = /incbin/("rk3288-veyron-speedy.dtb");
            type = "flat_dt";
            arch = "arm";
            compression = "none";
            hash@1{
                algo = "sha1";
            };
        };
        ramdisk@1{
            description = "initrd.img";
            data = /incbin/("initrd.img-4.9.0-1-armmp-lpae");
            type = "ramdisk";
            arch = "arm";
            os = "linux";
            compression = "none";
            hash@1{
                algo = "sha1";
            };
        };
    };
    configurations {
        default = "conf@1";
        conf@1{
            kernel = "kernel@1";
            fdt = "fdt@1";
                ramdisk = "ramdisk@1";
        };
    };
};

# mkimage -f debian-4.9.0-1.its debian-4.9.0-1.itb

# cat /boot/kernel.flags
console=tty1 nosplash root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 lsm.module_locking=0

# cat /boot/sign-kernel.sh
vbutil_kernel --pack /boot/vmlinuz.signed \
--keyblock /usr/share/vboot/devkeys/kernel.keyblock \
--version 1 \
--signprivate /usr/share/vboot/devkeys/kernel_data_key.vbprivk \
--bootloader /boot/kernel.flags \
--config /boot/kernel.flags \
--vmlinuz /boot/debian-4.9.0-1.itb \
--arch arm

# sh /boot/sign-kernel.sh

# dd if=/boot/vmlinuz.signed of=/dev/mmcblk0p2

not working/not tested: