Hello,
Just tried to book chromebook images version 253.
Usb wont boot sayin no kernel found, maybe so trick is required?
VbTryLoadKernel() start, get_info_flags=0x1
USB: Register 1313 NbrPorts 3
USB EHCI 1.00
2 USB Device(s) found
USB: Register 1313 NbrPorts 3
USB EHCI 1.00
2 USB Device(s) found
scanning bus for storage devices... 1 Storage Device(s) found
MMC: no card present
mmc_init err -16, time 1986
boot_device_mmc.c: boot_device_mmc_scan: mmc_init fail
MMC Device 4 not found
VbTryLoadKernel() found 0 disks
VbSetRecoveryRequest(90)
VbBootDeveloper() - no kernel found on USB
utility.c: VbExBeep: About to beep for 250 ms at 200 Hz.
VbSetRecoveryRequest(0)
leaving VbDisplayScreenFromGBB() with 0
VbBootDeveloper() - trying fixed disk
>From SD i can reach u-boot, it said unknow partition for mmc dev 1 and
detect capacity is wrong.
snow # mmc dev 1
dwmci_send_cmd: DATA ERROR!
dwmci_send_cmd: DATA ERROR!
switch to partitions #0, OK
mmc1 is current device
snow # mmc info
Device: EXYNOS DWMMC
Manufacturer ID: 3
OEM: 5344
Name: SL08G
Tran Speed: 50000000
Rd Block Len: 512
SD version 3.0
High Capacity: Yes
Capacity: w.4 GiB
Bus Width: 4-bit
snow # mmc part
## Unknown partition table
snow #
If i try to use SD card and USB stick at same time, mainline u-boot
start only XHCI hub and wont detect any storage devices here:
U-Boot 2015.01-rc2 (Dec 01 2014 - 21:54:38) for snow
CPU: Exynos5250@1700MHz
Board: Google Snow
I2C: ready
DRAM: 2 GiB
trace: copying 000ad9c0 bytes of early data from 50000000 to bedef000
trace: enabled
Board PMIC init
TPS>5090 PMIC init
MMC: EXYNOS DWMMC: 0, GXYNOS DWMMC: 1
SF: Detectmd GD25LQ32 with page size 256 Bytes, erase size 4 KiBl total 4 MiB
*** Warning - bad CRC, using default environment
Exynos DP init done
RKɽ͵ec-keyb
_ut: lcd
Err: lcd
Net: No ethernet found.
Hit any key`to stop autoboot: 0
mmc - MMC sub system
Usage:
mmc info - display info of the current MMC device
mmc read addr blk# cnt
mmc write addr blk# cnt
mmc erase blk# cnt
mmc rescan
mmc part - lists available partition on current mmc device
mmc dev [dev] [part] - show or set current mmc device [partition]
mmc list - lists available devices
mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode
- Set the BOOT_BUS_WIDTH field of the specified device
mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>
- Change sizes of boot and RPMB partitions of specifiel device
mmc partconf dev boot_ack boot_partition partition_access
- Change the bits of the PARTITION_CONFIG field of the specified device
mmc rst-function dev value
- Change the RST_n_FUNCTION field of the specified device
WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.
mmc setdsr <value> - set DWR register value
snow # usb storage
USB is stoppel. Please issue 'usb start' first.
snow # usb start
(Re)start USB...
USB0: Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
snow # usb storage
No storage devices, perhaps not 'usb start'ed..?
snow #
On Wed, Dec 3, 2014 at 5:19 PM, Guillaume Gardet
<[email protected]> wrote:
> Le 02/12/2014 13:57, Guillaume Gardet a écrit :
>>
>> Le 02/12/2014 00:34, Alexander Graf a écrit :
>>>
>>>
>>> On 02.12.14 00:19, Misha Komarovsky wrote:
>>>>
>>>> Hello,
>>>> I found that kernel or dtb file in current Chromebook contrib factory
>>>> image, tested on version 245, have boot problems. After kernel start
>>>> no signs of activity on stdout or serial console.
>>>>
>>>> If i replace linux.vmx and dtb on lxboot partition and modules on
>>>> lxroot with same files from 12.3 dist image for chromebook im able to
>>>> boot and pass installation fine.
>>>>
>>>> Also after installation and reboot, sd card not bootable at all, first
>>>> partition on sdcard changed type code to 0700 and size to 32mb,
>>>> probably cgpt script failed to fix it after installation for some
>>>> reason.
>>>>
>>>> Bundled armsoc x11 driver fail to start because it is for abi 13 not abi
>>>> 18.
>
>
> I updated armsoc driver just now from 0.0.1 to 1.1.0. It may help. :)
>
>>> That does indeed sound pretty broken. I think someone needs to sit down
>>> and check which of all those components is already done well enough
>>> upstream to drop our hacks.
>>>
>>> For example, I think u-boot has upstream snow support now, so we could
>>> just use that. The kernel should be ok as well.
>>
>>
>> Current Factory u-boot-snow (2015.01-rc2) does boot but is not really
>> usable. It seems there is a problem to access SD card. But LCD and keyboard
>> are working fine. :)
>>
>> I will have a look at it.
>
>
> With some patches, I am able to use a USB stick (no external SD) with
> upstream u-boot-snow and Factory kernel-lpae does boot !
> On kernel start, you must wait a little bit because at the beginning, there
> is just a black screen, followed later by a normal screen and a blue YaST
> Firstboot screen. :)
>
> But the are some problems:
> * upstream u-boot does not handle external SD card for an unknown reason
> (internal eMMC is usable). Downstream u-boot has no bootz support.
> * keyboard does not work under Linux (you must use an USB keyboard).
> * Second boot is deeply broken. U-Boot is not launched at all because "cgpt"
> command is applied to /dev/mmcblk0 (internal eMMC) instead of /dev/sda (USB
> stick) (Kiwi bug?). Once this one manually fixed, u-boot load the kernel and
> then hang with a black screen. Probably due to missing modules in dracut
> initrd. (I will submit a JeOS update once tested)
> * No wifi (at least on 1st boot)
>
> I will send an update (and SR) once tests are passed.
>
>
> Guillaume
>
--
Best Regards,
Misha Komarovskiy
zombahatgmaildotcom
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