Re: Forcing IDE to work in PIO mode

[Manish Lachwani <mlachwani@xxxxxxxxxx>]

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@xxxxxxxxxxxxx)
>
> 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 
> > > > >
> > > > >
> > > > > ************************************************************* 
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