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Date: Mon, 16 Jun 2003 10:44:07 +0300
From: "O.Sezer" <sezero@superonline.com>
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To: linux-kernel@vger.kernel.org
CC: alan@redhat.com
Subject: siimage base clock detection
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Hello Alan, all:

With 2.4.21-ac1, my cmd680 is detected with a base clock
o1 100, instead of 133 whict, I think, as it should be.
The card is an ata133 raid card. In my earlier tries with
mandrake's 2.4.21-pre4q13, the base clock was reported
correctly. The hard disk attached to is a udma100 one, yes,
but I think "base clock" is supposed to report the capability
of the controller not the drive (I may be wrong of course).
Lspci reports the card as:

00:0a.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 02)
	Subsystem: CMD Technology Inc: Unknown device 3680
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- 
<PERR-
	Latency: 32, cache line size 01
	Interrupt: pin A routed to IRQ 4
	Region 0: I/O ports at d000 [size=8]
	Region 1: I/O ports at b800 [size=4]
	Region 2: I/O ports at b400 [size=8]
	Region 3: I/O ports at b000 [size=4]
	Region 4: I/O ports at a800 [size=16]
	Region 5: Memory at d5800000 (32-bit, non-prefetchable) [size=256]
	Expansion ROM at <unassigned> [disabled] [size=512K]
	Capabilities: <available only to root>


Relevant parts of dmesg:

SiI680: IDE controller at PCI slot 00:0a.0
SiI680: chipset revision 2
SiI680: not 100% native mode: will probe irqs later
SiI680: BASE CLOCK == 100
     ide2: MMIO-DMA , BIOS settings: hde:pio, hdf:pio
     ide3: MMIO-DMA , BIOS settings: hdg:pio, hdh:pio
[...]
hde: ST320014A, ATA DISK drive
blk: queue c0380918, I/O limit 4095Mb (mask 0xffffffff)
ide1 at 0x170-0x177,0x376 on irq 15
ide2 at 0xe09e2080-0xe09e2087,0xe09e208a on irq 4
hde: attached ide-disk driver.
hde: host protected area => 1
hde: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=38792/16/63, UDMA(100)
Partition check:
  /dev/ide/host2/bus0/target0/lun0: [PTBL] [2434/255/63] p1 p2 < p5 > p3 p4

Thanks in advance,

O. Sezer