Success! Full CardBus/EXCA on PCI->Cardbus Bridge + DbAU1500

Success! Full CardBus/EXCA on PCI->Cardbus Bridge + DbAU1500

[Jeff Baitis]

Everyone:

Thank you very much for helping this green hand get up to speed on the MIPS
platform.  I have successfully configured card services to work with the
current linux_2_4 CVS, in conjunction with a TI PCI1510 PCI->CardBus bridge.

There are a few card services options that you will need, in order to replicate
my work:

1. The pcmcia_core cis_speed needs to be set to a fairly low value.
   I have successfully used `modprobe pcmcia_core cis_speed=10` and 
   `modprobe pcmcia_core cis_speed=1.`

2. The PCMCIA memory window must map into the memory window assigned
   by the PCI device autoconfiguration. Since my `lspci -v` shows:

   00:0d.0 CardBus bridge: Texas Instruments: Unknown device ac56
       Subsystem: Unknown device 5678:1234
       Flags: bus master, medium devsel, latency 168, IRQ 1
       Memory at 40000000 (32-bit, non-prefetchable) [size=4K]
       Bus: primary=00, secondary=05, subordinate=00, sec-latency=176
       Memory window 0: 40001000-40002000 (prefetchable)
       Memory window 1: 40400000-407ff000
       I/O window 0: 00004000-000040ff
       I/O window 1: 00004400-000044ff
       16-bit legacy interface ports at 0001
 
   I configured /etc/pcmcia/config.opts as follows:

       #
       # Local PCMCIA Configuration File
       #
       #----------------------------------------------------------------------
       
       # System resources available for PCMCIA devices
       # remember to modprobe pcmcia_core cis_speed=10
       
       include port 0x100-0x4ff, port 0xc00-0xcff
       include memory 0x40000000-0x40ffffff

       #-------------------------- eof 


Special thanks to Pete for answering so many of my questions.


I hope you find this information useful!



Best regards,

Jeff



-- 
         Jeffrey Baitis - Associate Software Engineer

                    Evolution Robotics, Inc.
                     130 West Union Street
                       Pasadena CA 91103

 tel: 626.535.2776  |  fax: 626.535.2777  |  baitisj@evolution.com 

Re: Success! Full CardBus/EXCA on PCI->Cardbus Bridge + DbAU1500

[Pete Popov]

On Fri, 2003-03-14 at 12:23, Jeff Baitis wrote:
> Everyone:
> 
> Thank you very much for helping this green hand get up to speed on the MIPS
> platform.  I have successfully configured card services to work with the
> current linux_2_4 CVS, in conjunction with a TI PCI1510 PCI->CardBus bridge.
> 
> There are a few card services options that you will need, in order to replicate
> my work:
> 
> 1. The pcmcia_core cis_speed needs to be set to a fairly low value.
>    I have successfully used `modprobe pcmcia_core cis_speed=10` and 
>    `modprobe pcmcia_core cis_speed=1.`
> 
> 2. The PCMCIA memory window must map into the memory window assigned
>    by the PCI device autoconfiguration. Since my `lspci -v` shows:
> 
>    00:0d.0 CardBus bridge: Texas Instruments: Unknown device ac56
>        Subsystem: Unknown device 5678:1234
>        Flags: bus master, medium devsel, latency 168, IRQ 1
>        Memory at 40000000 (32-bit, non-prefetchable) [size=4K]
>        Bus: primary=00, secondary=05, subordinate=00, sec-latency=176
>        Memory window 0: 40001000-40002000 (prefetchable)
>        Memory window 1: 40400000-407ff000
>        I/O window 0: 00004000-000040ff
>        I/O window 1: 00004400-000044ff
>        16-bit legacy interface ports at 0001
>  
>    I configured /etc/pcmcia/config.opts as follows:
> 
>        #
>        # Local PCMCIA Configuration File
>        #
>        #----------------------------------------------------------------------
>        
>        # System resources available for PCMCIA devices
>        # remember to modprobe pcmcia_core cis_speed=10
>        
>        include port 0x100-0x4ff, port 0xc00-0xcff
>        include memory 0x40000000-0x40ffffff
> 
>        #-------------------------- eof 

Yep, I had to do that way back then when I got the same sort of setup
working.  Good job figuring that out :)

Just to confirm, this setup works with the current linux-mips.org plus
the above info?  No other patches are required, correct?

I think I'll start an Alchemy/AMD FAQ or something in my directory and
put this information there. Thanks!

Pete

Re: Success! Full CardBus/EXCA on PCI->Cardbus Bridge + DbAU1500

[Jeff Baitis]

On Fri, Mar 14, 2003 at 01:34:28PM -0800, Pete Popov wrote:

> Yep, I had to do that way back then when I got the same sort of setup
> working.  Good job figuring that out :)
> 
> Just to confirm, this setup works with the current linux-mips.org plus
> the above info?  No other patches are required, correct?
> 
> I think I'll start an Alchemy/AMD FAQ or something in my directory and
> put this information there. Thanks!

The patches that I'm using:

Pete's 36bit_addr_2.4.21-pre4.patch
Pete's 64bit_pcmcia.patch

Additionally, I had to apply the patch to include/asm-mips/io.h in order
to get the hermes/orinoco drivers to compile. (I posted this patch earlier, and
someone suggested that the SLOW_DOWN_IO; call was not necessary). Find it below.

I have some other patches applied; they should not affect PCMCIA. I'll check
out clean source and patch it with this bare minimum, and let you know
if something else is required.

Thanks, Pete -- a FAQ about your patches will really help people who are
starting out on the Alchemy platform.

Regards,

Jeff


  Index: io.h
  ===================================================================
  RCS file: /home/cvs/linux/include/asm-mips/io.h,v
  retrieving revision 1.29.2.20
  diff -u -r1.29.2.20 io.h
  --- io.h        25 Feb 2003 22:03:12 -0000      1.29.2.20
  +++ io.h        14 Mar 2003 21:50:14 -0000
  @@ -332,12 +332,25 @@
          SLOW_DOWN_IO;                                                   \
   } while(0)
  °
  -#define outw_p(val,port)                                               \
  -do {                                                                   \
  -       *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) = \
  -               __ioswab16(val);                                        \
  -       SLOW_DOWN_IO;                                                   \
  -} while(0)
  +/* baitisj */
  +static inline u16 outw_p(u16 val, unsigned long port)
  +{
  +    register u16 retval;
  +    do {
  +        retval = *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) =
  +            __ioswab16(val);
  +        SLOW_DOWN_IO;
  +    } while(0);
  +    return retval;
  +}
  +/*°°
  + *  #define outw_p(val,port)                                           \
  + *  do {                                                                       \
  + *     *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) = \
  + *             __ioswab16(val);                                        \
  + *     SLOW_DOWN_IO;                                                   \
  + *  } while(0)
  + */
  °
   #define outl_p(val,port)                                               \
   do {                                                                   \
  
> On Fri, 2003-03-14 at 12:23, Jeff Baitis wrote:
> > Everyone:
> > 
> > Thank you very much for helping this green hand get up to speed on the MIPS
> > platform.  I have successfully configured card services to work with the
> > current linux_2_4 CVS, in conjunction with a TI PCI1510 PCI->CardBus bridge.
> > 
> > There are a few card services options that you will need, in order to replicate
> > my work:
> > 
> > 1. The pcmcia_core cis_speed needs to be set to a fairly low value.
> >    I have successfully used `modprobe pcmcia_core cis_speed=10` and 
> >    `modprobe pcmcia_core cis_speed=1.`
> > 
> > 2. The PCMCIA memory window must map into the memory window assigned
> >    by the PCI device autoconfiguration. Since my `lspci -v` shows:
> > 
> >    00:0d.0 CardBus bridge: Texas Instruments: Unknown device ac56
> >        Subsystem: Unknown device 5678:1234
> >        Flags: bus master, medium devsel, latency 168, IRQ 1
> >        Memory at 40000000 (32-bit, non-prefetchable) [size=4K]
> >        Bus: primary=00, secondary=05, subordinate=00, sec-latency=176
> >        Memory window 0: 40001000-40002000 (prefetchable)
> >        Memory window 1: 40400000-407ff000
> >        I/O window 0: 00004000-000040ff
> >        I/O window 1: 00004400-000044ff
> >        16-bit legacy interface ports at 0001
> >  
> >    I configured /etc/pcmcia/config.opts as follows:
> > 
> >        #
> >        # Local PCMCIA Configuration File
> >        #
> >        #----------------------------------------------------------------------
> >        
> >        # System resources available for PCMCIA devices
> >        # remember to modprobe pcmcia_core cis_speed=10
> >        
> >        include port 0x100-0x4ff, port 0xc00-0xcff
> >        include memory 0x40000000-0x40ffffff
> > 
> >        #-------------------------- eof 
> 
> 
> Pete
> 
> 
> 

-- 
         Jeffrey Baitis - Associate Software Engineer

                    Evolution Robotics, Inc.
                     130 West Union Street
                       Pasadena CA 91103

 tel: 626.535.2776  |  fax: 626.535.2777  |  baitisj@evolution.com 

Re: Success! Full CardBus/EXCA on PCI->Cardbus Bridge + DbAU1500

[Pete Popov]

Jeff,

I don't touch generic files, especially io.h :), so Ralf will have to
decide whether to apply the patch or not.

Pete

> Additionally, I had to apply the patch to include/asm-mips/io.h in order
> to get the hermes/orinoco drivers to compile. (I posted this patch earlier, and
> someone suggested that the SLOW_DOWN_IO; call was not necessary). Find it below.
> 
> I have some other patches applied; they should not affect PCMCIA. I'll check
> out clean source and patch it with this bare minimum, and let you know
> if something else is required.
> 
> Thanks, Pete -- a FAQ about your patches will really help people who are
> starting out on the Alchemy platform.
> 
> Regards,
> 
> Jeff
> 
> 
>   Index: io.h
>   ===================================================================
>   RCS file: /home/cvs/linux/include/asm-mips/io.h,v
>   retrieving revision 1.29.2.20
>   diff -u -r1.29.2.20 io.h
>   --- io.h        25 Feb 2003 22:03:12 -0000      1.29.2.20
>   +++ io.h        14 Mar 2003 21:50:14 -0000
>   @@ -332,12 +332,25 @@
>           SLOW_DOWN_IO;                                                   \
>    } while(0)
>   °
>   -#define outw_p(val,port)                                               \
>   -do {                                                                   \
>   -       *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) = \
>   -               __ioswab16(val);                                        \
>   -       SLOW_DOWN_IO;                                                   \
>   -} while(0)
>   +/* baitisj */
>   +static inline u16 outw_p(u16 val, unsigned long port)
>   +{
>   +    register u16 retval;
>   +    do {
>   +        retval = *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) =
>   +            __ioswab16(val);
>   +        SLOW_DOWN_IO;
>   +    } while(0);
>   +    return retval;
>   +}
>   +/*°°
>   + *  #define outw_p(val,port)                                           \
>   + *  do {                                                                       \
>   + *     *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) = \
>   + *             __ioswab16(val);                                        \
>   + *     SLOW_DOWN_IO;                                                   \
>   + *  } while(0)
>   + */
>   °
>    #define outl_p(val,port)                                               \
>    do {                                                                   \
>   

Re: Success! Full CardBus/EXCA on PCI->Cardbus Bridge + DbAU1500

[Juan Quintela]

>>>>> "pete" == Pete Popov <ppopov@mvista.com> writes:

Hi
>> Index: io.h
>> ===================================================================
>> RCS file: /home/cvs/linux/include/asm-mips/io.h,v
>> retrieving revision 1.29.2.20
>> diff -u -r1.29.2.20 io.h
>> --- io.h        25 Feb 2003 22:03:12 -0000      1.29.2.20
>> +++ io.h        14 Mar 2003 21:50:14 -0000
>> @@ -332,12 +332,25 @@
>> SLOW_DOWN_IO;                                                   \
>> } while(0)
>> °
>> -#define outw_p(val,port)                                               \
>> -do {                                                                   \
>> -       *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) = \
>> -               __ioswab16(val);                                        \
>> -       SLOW_DOWN_IO;                                                   \
>> -} while(0)
>> +/* baitisj */
>> +static inline u16 outw_p(u16 val, unsigned long port)
>> +{
>> +    register u16 retval;
>> +    do {
>> +        retval = *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) =
>> +            __ioswab16(val);
>> +        SLOW_DOWN_IO;
>> +    } while(0);
>> +    return retval;
>> +}

static inline u16 outw_p(u16 val, unsigned long port)
{
        u16 retval; 
        retval = *(volatile u16 *)(mips_io_port_base + __swizzle_addr_w(port)) =
               __ioswab16(val);
               SLOW_DOWN_IO;
        return retval;
}

while do construct inside a function shouldn't be needed when you have
a function.  And register is obsolete :)

Later, Juan.

-- 
In theory, practice and theory are the same, but in practice they 
are different -- Larry McVoy