Asus M2V-MX SE (VIA K8T890): SATA-II disk only detected as UDMA/100

Dear SATA subsystem folks,


please keep my address in CC list since I am not subscribed.

This is a reply to my message to the coreboot list [1] and I am adding
more current information to it.


Am Sonntag, den 19.06.2011, 20:30 +0200 schrieb Paul Menzel:

the ASUS M2V-MX SE HAS A VIA K8T890 chipset and the following BIOS
version is used.

        $ sudo dmidecode
        […]
        # dmidecode 2.9
        SMBIOS 2.4 present.
        49 structures occupying 1801 bytes.
        Table at 0x000F0740.
        
        Handle 0x0000, DMI type 0, 24 bytes
        BIOS Information
                Vendor: American Megatrends Inc.
                Version: 0304   
                Release Date: 10/30/2007
                Address: 0xF0000
                Runtime Size: 64 kB
                ROM Size: 512 kB
        […]

I had to replace my hard drive and bought a new SATA-II disk.
Unfortunately the full speed is not detected. Instead of UDMA/133 – as
was used with the old SATA-I disk – it is reporting UDMA/100.

        $ uname -a
        Linux joe 2.6.32-5-amd64 #1 SMP Tue Mar 8 22:49:26 UTC 2011 x86_64 GNU/Linux
        $ dmesg # new SATA-II disk
        […]
        [    0.792878] ata3: SATA max UDMA/133 cmd 0xec00 ctl 0xe880 bmdma 0xe400 irq 21
        [    0.792881] ata4: SATA max UDMA/133 cmd 0xe800 ctl 0xe480 bmdma 0xe408 irq 21
        […]
        [    1.384015] ata4: SATA link up 1.5 Gbps (SStatus 123 SControl 300)
        [    1.392019] usb 2-1: new low speed USB device using uhci_hcd and address 2
        [    1.548219] ata4.00: ATA-8: WDC WD20EARS-60MVWB0, 51.0AB51, max UDMA/100

Here seems to be the problematic line, that somehow the drive is
reporting the wrong maximum speed or the chipset does not detect it
correctly.

        [    1.548223] ata4.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
        [    1.556240] ata4.00: configured for UDMA/100
        [    1.556343] scsi 3:0:0:0: Direct-Access     ATA      WDC WD20EARS-60M 51.0 PQ: 0 ANSI: 5
        […]
        $ dmesg # old SATA-I disk
        [    0.779300] ata1: SATA max UDMA/133 cmd 0xec00 ctl 0xe880 bmdma 0xe400 irq 21
        [    0.779303] ata2: SATA max UDMA/133 cmd 0xe800 ctl 0xe480 bmdma 0xe408 irq 21
        […]
        [    0.980024] ata1: SATA link up 1.5 Gbps (SStatus 123 SControl 300)
        [    0.980427] ata3.00: configured for UDMA/33
        [    1.144418] ata1.00: ATA-8: Hitachi HDP725050GLA360, GM4OA52A, max UDMA/133
        [    1.144421] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 0/32)
        [    1.160414] ata1.00: configured for UDMA/133
        [    1.160566] scsi 0:0:0:0: Direct-Access     ATA      Hitachi HDP72505 GM4O PQ: 0 ANSI: 5
        [    1.364012] ata2: SATA link down 1.5 Gbps (SStatus 0 SControl 300)
        […]

[…]

The guy at the computer shop said that under MS Windows you have to set
a jumper to get this working and I also found that in the FAQ of Western
Digital Web site [2]. But setting the jumper did not change anything.
The `dmesg` output is the same.

Also looking at the VIA controllers on their site [2] it does not match
the one I am using, so this problem might not be related to this at all.

        $ lspci
        00:00.0 Host bridge: VIA Technologies, Inc. K8M890CE Host Bridge
        00:00.1 Host bridge: VIA Technologies, Inc. K8M890CE Host Bridge
        00:00.2 Host bridge: VIA Technologies, Inc. K8M890CE Host Bridge
        00:00.3 Host bridge: VIA Technologies, Inc. K8M890CE Host Bridge
        00:00.4 Host bridge: VIA Technologies, Inc. K8M890CE Host Bridge
        00:00.5 PIC: VIA Technologies, Inc. K8M890CE I/O APIC Interrupt Controller
        00:00.7 Host bridge: VIA Technologies, Inc. K8M890CE Host Bridge
        00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South]
        00:02.0 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller
        00:03.0 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller
        00:0f.0 IDE interface: VIA Technologies, Inc. Device 5372
        00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 07)
        00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
        00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
        00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
        00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev b0)
        00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 90)
        00:11.0 ISA bridge: VIA Technologies, Inc. VT8237S PCI to ISA Bridge
        00:11.7 Host bridge: VIA Technologies, Inc. VT8251 Ultra VLINK Controller
        00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 7c)
        00:13.0 Host bridge: VIA Technologies, Inc. VT8237A Host Bridge
        00:13.1 PCI bridge: VIA Technologies, Inc. VT8237A PCI to PCI Bridge
        00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
        00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
        00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
        00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
        01:00.0 VGA compatible controller: VIA Technologies, Inc. K8M890CE/K8N890CE [Chrome 9] (rev 11)
        20:01.0 Audio device: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 10)

This problem is reproducible with Linux kernel 2.6.32 and 2.6.39 on a
Debian Sid/unstable system.

Any insight or help is much appreciated. Searching for

	linux-ide sata II via chipset udma 100

did not find anything useful.


Thanks,

Paul


[1] http://www.coreboot.org/pipermail/coreboot/2011-June/065622.html
[2] http://wdc.custhelp.com/app/answers/detail/search/1/a_id/1337/c/130/p/227,294