Hi, Le 17/06/2011 10:29, Alexei Ozhigov a écrit : > 2011/6/17 Prafulla Wadaskar<prafu...@marvell.com>: >> >> >>> -----Original Message----- >>> From: Philip Hands [mailto:p...@hands.com] >>> Sent: Friday, June 17, 2011 1:33 AM >>> To: Alexei Ozhigov >>> Cc: Prafulla Wadaskar; u-boot@lists.denx.de; Prabhanjan Sarnaik; Ashish >>> Karkare >>> Subject: Re: [U-Boot] OpenRD Ultimate SATA& SD >>> >>> On Thu, 16 Jun 2011 16:18:46 +0400, Alexei Ozhigov >>> <alexei.ozhi...@gmail.com> wrote: >>> ... >>>> >>>> I am experiencing the same problem with SATA right now with >>>> v2011.06-rc2 (tried also the latest master). If MVSATA_STATUS_TIMEOUT >>>> in mvsata_ide_initialize_port is ignored, SATA drive is found on the >>>> second port and I am able to read the drive's content. >>> >>> Inspired by what you say about timeouts, I thought perhaps increasing >>> the timeout from 10ms to 1s might make a difference -- that worked! >>> >>> ... except that now, it's working regardless :-( >>> >>> So, I've no idea if that's really related to what's going on, because >>> I've now gone as far as reducing the timeout to 5ms and it's _still_ >>> working fine, so perhaps some part of the SATA subsystem was in a state >>> that was somehow reset by waiting a bit longer for the startup once, and >>> that's somehow "fixed" it. >>> >>> It is still working despite powering down the machine for a while, so >>> I'm guessing whatever changed is something to do with the state of the >>> hard drive. >>> >>> Sadly that means that I've now lost the ability to test this, since >>> trying any of the versions that were previously failing now work. >>> >>> Anyway, Alexei, try increasing the timeout (i.e. the value being >>> assigned to timeleft) --- if that works for you too, it seems pretty >>> harmless, so might be appropriate for wider adoption. > > I have already tried longer timeouts for timeleft and it does not help. > > Also with timeout circumvention the SATA flash card I was hoping to > boot from (Transcend TS1GSDOM22V) is identified as follows: > > Bus 0: OK Bus 1: OK > Device 0: Model: TRANSCEND Firm: 20080128 Ser#: 20080407 00000005 > Type: Hard Disk > Capacity: 955.8 MB = 0.9 GB (1957536 x 512) > IDE read: device 0 not ready > IDE read: device 0 not ready > Device 1: Model: Firm: Ser#: > Type: Hard Disk > Capacity: not available > > And then the card cannot be read. First attempt shows "OK" although > the data written to memory are wrong, next attempts result in "device > 0 not ready". On the other hand, Linux (Debian ARM port) does not > recognize the card either. So if this problem is not related to > improper initialization, the question is how SATA flash differs from > regular SATA drives with respect to SATA controller in 88F6281 and if > it is actually possible to work with SATA flash on OpenRD.
Can you #define DEBUG at the start of common/cmd_ide.c and rerun the test? Amicalement, -- Albert. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
