Re: Forcing IDE to work in PIO mode

[Manish Lachwani <mlachwani@mvista.com>]

The pcmcia support for the SWARM is provided by 
drivers/pcmcia/sibyte_generic.c in 2.4.26

This file (and may be others it depends on) does not exist in 2.6

Thanks
Manish Lachwani



Muruga Ganapathy wrote:
> Manish, 
> 
> My previous mail was based on the sources from kernerl.org and the dmesg
> below. 
> 
> Thanks
> G.Muruganandam
> 
> =======================================================
> Linux version 2.4.27-sb1-swarm-bn (root@hattusa) (gcc version 3.3.4 (Debian
> 
> 1:34
> 
> swarm setup: M41T81 RTC detected.
> 
> This kernel optimized for board runs with CFE
> 
> Determined physical RAM map:
> 
>  memory: 003b0000 @ 00000000 (usable)
> 
>  memory: 0f254400 @ 00c36c00 (usable)
> 
>  memory: 00886c00 @ 003b0000 (reserved)
> 
> hm, page 003b0000 reserved twice.
> 
> hm, page 003b1000 reserved twice.
> 
> Initial ramdisk at: 0x803b0000 (8940544 bytes)
> 
> On node 0 totalpages: 65163
> 
> zone(0): 65163 pages.
> 
> zone(1): 0 pages.
> 
> zone(2): 0 pages.
> 
> Kernel command line: root=/dev/ram console=duart0 initrd=886C00@803B0000
> 
> Console: colour dummy device 80x25
> 
> Calibrating delay loop... 532.48 BogoMIPS
> 
> Memory: 245068k/251920k available (2077k kernel code, 6860k reserved, 120k
> 
> data)
> 
> Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
> 
> Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
> 
> Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> 
> Buffer cache hash table entries: 16384 (order: 4, 65536 bytes)
> 
> Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
> 
> Checking for 'wait' instruction...  unavailable.
> 
> POSIX conformance testing by UNIFIX
> 
> Detected 2 available CPU(s)
> 
> Starting CPU 1... Slave cpu booted successfully
> 
> Waiting on wait_init_idle (map = 0x2)
> 
> All processors have done init_idle
> 
> PCI: Skipping PCI probe.  Bus is not initialized.
> 
> Linux NET4.0 for Linux 2.4
> 
> Based upon Swansea University Computer Society NET3.039
> 
> Initializing RT netlink socket
> 
> Starting kswapd
> 
> VFS: Disk quotas vdquot_6.5.1
> 
> Journalled Block Device driver loaded
> 
> devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
> 
> devfs: boot_options: 0x0
> 
> Dummy keyboard driver installed.
> 
> pty: 256 Unix98 ptys configured
> 
> Generic MIPS RTC Driver v1.0
> 
> RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
> 
> eth0: SiByte Ethernet at 0x10064000, address: 00-02-4C-FE-0D-D6
> 
> eth0: enabling TCP rcv checksum
> 
> eth1: SiByte Ethernet at 0x10065000, address: 00-02-4C-FE-0D-D7
> 
> eth1: enabling TCP rcv checksum
> 
> Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
> 
> ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
> 
> SiByte onboard IDE configured as device 0
> 
> Linux Kernel Card Services 3.1.22
> 
>   options:  [pci] [cardbus]
> 
> sibyte-pcmcia: Looking up addr 0x10061130: 0x03ff (IO size)
> 
> sibyte-pcmcia: Looking up addr 0x10061230: 0x1100 (IO Base Address)
> 
> sibyte-pcmcia: Memory region 0x11000000 of size 0x04000000 requested.
> 
> sibyte-pcmcia: Setting up "sb1250pc" procfs entry
> 
> SiByte onboard PCMCIA-IDE configured as device 1
> 
> mice: PS/2 mouse device common for all mice
> 
> Initializing Cryptographic API
> 
> NET4: Linux TCP/IP 1.0 for NET4.0
> 
> IP: routing cache hash table of 2048 buckets, 16Kbytes
> 
> TCP: Hash tables configured (established 16384 bind 16384)
> 
> 
> 
> 
> 
> 
>>Please point me to the 2.4.26 or 2.4.27 code that you are referring to
>>
>>Thanks
>>Manish Lachwani
>>
>>Muruga Ganapathy wrote:
>>
>>>Manish, 
>>>
>>>Thanks for the pointer.
>>>
>>>I am looking for the PCMCIA-IDE driver for the SWARM board in 2.6.x
>>>I did see this driver in 2.4.26/27 but not in 2.6.10.
>>>
>>>Do you have any suggestions on porting the PCMCIA-IDE driver from 2.4.27
>>>to 2.6.x?
>>>
>>>Regards
>>>G.Muruganandam
>>>
>>>
>>>
>>>>I had posted a patch to this mailing list a few days back. The patch 
>>>>applies cleanly to the current tree and is currently checked in: 
>>>>drivers/ide/mips/swarm.c
>>>>
>>>>Using this patch, Broadcom SWARM IDE works well
>>>>
>>>>Thanks
>>>>Manish Lachwani
>>>>
>>>>Muruga Ganapathy wrote:
>>>>
>>>>
>>>>>Thanks Manish for the information.  
>>>>>
>>>>>BTW, do you have patch to make the swarm IDE work in 2.6.6-rc3 
>>>>>
>>>>>Regards 
>>>>>G.Muruganandam 
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>Muruga Ganapathy wrote: 
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hello,  
>>>>>>>
>>>>>>>How do I force the IDE to work in the PIO mode by including the  
>>>>>>>option like "hdb=noprobe" in the setup.c? 
>>>>>>>
>>>>>>>
>>>>>>>My kernel version is 2.6.6 
>>>>>>>
>>>>>>>Thanks 
>>>>>>>G.Muruganandam 
>>>>>>>
>>>>>>
>>>>>>
>>>>>>Hello ! 
>>>>>>
>>>>>>I would have thought "ide=nodma" at the command line would have 
>>>>>
>>>>>worked 
>>>>>
>>>>>
>>>>>
>>>>>>Thanks 
>>>>>>Manish Lachwani 
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>************************************************************* 
>>>>>GDA Technologies, Inc.		 
>>>>>1010 Rincon Circle  
>>>>>San Jose CA, 95131 
>>>>>Phone	(408) 432-3090 
>>>>>Fax	(408) 432-3091 
>>>>>
>>>>>Accelerate Your Innovation	 
>>>>>************************************************************** 
>>>>
> **