Broadcom OSB4 IDE Controller
Hello,
I'm using Debian Etch 4.0 defaut kernel on IBM Netfinity 7100
System. It has builtin "Broadcom OSB4 IDE Controller"; the controller
is detected properly, but its using PIO Mode (33 MHz) for IDE so the I/
O is very slow. Can anyone tell me how i can enable my IDE will full
speed.
"lspci" Output:
00:00.0 Host bridge: Broadcom CNB20HE Host Bridge (rev 21)
00:00.1 Host bridge: Broadcom CNB20HE Host Bridge (rev 01)
00:00.2 Host bridge: Broadcom CNB20HE Host Bridge
00:00.3 Host bridge: Broadcom CNB20HE Host Bridge
00:01.0 SCSI storage controller: Adaptec AIC-7896U2/7897U2
00:01.1 SCSI storage controller: Adaptec AIC-7896U2/7897U2
00:05.0 Ethernet controller: Advanced Micro Devices [AMD] 79c970
[PCnet32 LANCE] (rev 43)
00:06.0 VGA compatible controller: S3 Inc. Trio 64 3D (rev 01)
00:0f.0 ISA bridge: Broadcom OSB4 South Bridge (rev 4f)
00:0f.1 IDE interface: Broadcom OSB4 IDE Controller
00:0f.2 USB Controller: Broadcom OSB4/CSB5 OHCI USB Controller (rev
04)
02:04.0 SCSI storage controller: IBM SCSI RAID Adapter [ServeRAID]
(rev 0d)
"dmesg | grep ide" Output:
ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
teja@bitsfoss:~$ dmesg | grep ide
BIOS-provided physical RAM map:
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
CPU: After generic identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After vendor identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After generic identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After vendor identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After generic identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After vendor identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After generic identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
CPU: After vendor identify, caps: 0383fbff 00000000 00000000 00000000
00000000 00000000 00000000
Boot video device is 0000:00:06.0
ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
aic7896/97: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
aic7896/97: Ultra2 Wide Channel B, SCSI Id=7, 32/253 SCBs
target1:0:2: wide asynchronous
ide0: BM-DMA at 0x0840-0x0847, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0x0848-0x084f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
Thanks in advance,
regards,
Teja
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