Re: PCMCIA on TQM8xxL

1) Define _IO_BASE and _IO_BASE_SIZE in arch/ppc/platforms/tqm8xxl.h
2) just copy and paste the line of code for the RPX to TQM8xxL section in
arch/ppc/kernel/m8xx_setup.c m8xx_map_io(), as you pointed. If there's no
#ifdef CONFIG_TQM8XXL (or something like that), just create one near the ones
already defined for FADS, RPX, MBX. For example, for my FADS board, its
section looks like this:

#ifdef CONFIG_FADS
	io_block_mapping(BCSR_ADDR, BCSR_ADDR, BCSR_SIZE, _PAGE_IO);
	io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
#endif

the first call to io_block_mapping() maps the EPLD's registers, the second the
PCMCIA address space. And that's it.

On Thursday 23 January 2003 08:16, Steven Scholz wrote:

Wolfgang Grandegger wrote:

quoted

On 01/23/2003 10:52 AM Steven Scholz wrote:

quoted

Hi there,

this is about PCMCIA on TQM8xxL using DENX ELDK 2.0 with DENX
linuxppc_2_4_devel CVS tree:

I am confused:

In order to get pcmcia working on mpc8xx one have to define a proper
_IO_BASE and then ioremap it early enough so the physical address
equals the virtual adress.

That fair enough, but I just can't find the place where _IO_BASE is
remapped for TQM8xxL.

It should be done in arch/ppc/kernel/m8xx_setup.c:m8xx_map_io(), but
there's no "#ifdef TQM8xxL" or something !?

Any ideas, why it should work at all?

Check "arch/ppc/platforms/tqm8xx.h", which is somehow include by
"include/asm-ppc/io.h".

Thanks for your reply.

I know _IO_BASE is defined in arch/ppc/platforms/tqm8xx.h.
But IMHO it's never ioremapped like it is done for  RPC Boards in
arch/ppc/kernel/m8xx_setup.c:m8xx_map_io():

#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC)
        io_block_mapping(RPX_CSR_ADDR, RPX_CSR_ADDR, RPX_CSR_SIZE,
_PAGE_IO); #if !defined(CONFIG_PCI)
        io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
#endif
#endif

That's what I don't understand!

My HW is similar to TQM8xx and I have to add something like
#if defined(CONFIG_MYBOARD)
        io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
#endif
to get PCMCIA working...

Steven

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