On 09/14/2014 12:00 PM, Hans de Goede wrote:
Hi Karsten,
Thanks for testing this!
On 09/14/2014 05:43 PM, Karsten Merker wrote:
Hello,
I am currently testing the new bootcmd handling introduced at
http://git.denx.de/?p=u-boot.git;a=commit;h=8cc96848f0a467922820895b6b2363b0c64163b5
on a sunxi-based system running u-boot v2014.10-rc2.
When installing to MMC, everything works as expected; the
boot.scr on the first MMC partition is found and executed.
When installing to a SATA disk, the following happens:
U-Boot 2014.10-rc2 (Sep 04 2014 - 07:32:33) Allwinner Technology
CPU: Allwinner A20 (SUN7I)
I2C: ready
DRAM: 2 GiB
MMC: SUNXI SD/MMC: 0
In: serial
Out: serial
Err: serial
SCSI: SUNXI SCSI INIT
Target spinup took 0 ms.
AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: ncq stag pm led clo only pmp pio slum part ccc apst
Net: dwmac.1c50000
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0...
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
SCSI device 0:
Device 0: device type unknown
... is now current device
Scanning scsi 0...
** Bad device size - scsi 0 **
** Bad device size - scsi 0 **
** Bad device size - scsi 0 **
** Bad device size - scsi 0 **
** Bad device size - scsi 0 **
** Bad device size - scsi 0 **
[...]
The last block is the output of running ${scsi_boot}:
sun7i# printenv scsi_boot
scsi_boot=if scsi dev ${devnum}; then setenv devtype scsi; run
scan_dev_for_boot; fi
What appears to be missing here, is a previous 'scsi scan' command.
When prepending it to ${scsi_boot}, everything works as expected:
sun7i# printenv scsi_boot
scsi_boot=scsi scan; if scsi dev 0; then setenv devtype scsi; run
scan_dev_for_boot; fi
sun7i# run scsi_boot
scanning bus for devices...
Device 0: (0:0) Vendor: ATA Prod.: HGST HTS541010A9 Rev: JA0O
Type: Hard Disk
Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)
Found 1 device(s).
SCSI device 0:
Device 0: (0:0) Vendor: ATA Prod.: HGST HTS541010A9 Rev: JA0O
Type: Hard Disk
Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)
... is now current device
Scanning scsi 0...
Found U-Boot script /boot.scr
2033 bytes read in 20 ms (98.6 KiB/s)
## Executing script at 43100000
Could you add a 'scsi scan' command to the generic bootcmd
handling infrastructure?
A good question, I wonder if this is something which would be considered
SoC specific, or if all SoCs need this though?
Stephen (added to the To) what is your take on this ?
Hmmm. 'mmc_dev' detects the media each time it's executed. However, I
suppose that's appropriate because each MMC controller is connected 1:1
with a device. Such automatic scanning might not be a good idea for
larger buses where scanning could take a long time. Perhaps you can copy
the style of $usb_boot, and prefix a "run $scsi_init" onto the front of
it in the same way?
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