linux-kernel - Re: Libata PATA status

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Message-Id: <200707041332.00769.marc.dietrich@ap.physik.uni-giessen.de>
Date:	Wed, 4 Jul 2007 13:31:47 +0200
From:	Marc Dietrich <Marc.Dietrich@...physik.uni-giessen.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: Libata PATA status


Hi Alan,

Am Wednesday 04 July 2007 11:21 schrieben Sie:
> > I'd love to try to poke holes in the libata PATA support, but sadly
> > it doesn't look like any of my systems built-in ATA chipsets are
> > supported yet.  Has anyone started a rewrite of the PPC/PowerMac IDE
> > driver?  The current one is in "drivers/ide/ppc/pmac.c", and supports
> > these chipsets:

I'm using pata-cmd64x for a few month now on my G3 powermac. So far no 
problems except it only runs in UDMA/25 mode instead of UDMA/33 as the ide 
driver does. And of course - no cdrom or zip because they are connected to 
the Heathrow controller...

scsi0 : pata_cmd64x
scsi1 : pata_cmd64x
ata1: PATA max UDMA/25 cmd 0xfd63d090 ctl 0xfd63d082 bmdma 0xfd63d050 irq 0
ata2: PATA max UDMA/25 cmd 0xfd63d070 ctl 0xfd63d062 bmdma 0xfd63d058 irq 0
ata1.00: ata_hpa_resize 1: sectors = 312581808, hpa_sectors = 312581808
ata1.00: ATA-7: SAMSUNG SP1654N, BV100-50, max UDMA/100
ata1.00: 312581808 sectors, multi 16: LBA48
pata_cmd64x: active 3 recovery 1 setup 1.
ata1.00: ata_hpa_resize 1: sectors = 312581808, hpa_sectors = 312581808
ata1.00: configured for UDMA/25
scsi 0:0:0:0: Direct-Access     ATA      SAMSUNG SP1654N  BV10 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
 sda: [mac] sda1 sda2 sda3 sda4 sda5 sda6 sda7
sd 0:0:0:0: [sda] Attached SCSI disk

> I'm not aware of anyone having done any PPC ports yet, although a couple
> of people have asked and said they would look at it. Currently our
> coverage is incomplete for some embedded and obscure platforms, of which
> the macintrash is probably the least 'obscure'.
>
> Alan

Marc

-- 
	"It is a noble cause that we defend and not particular interests."
		 Lord Arthur Ponsonby, "Falsehood in Wartime: Propaganda Lies of the First 
World War", 1928
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