Thanks a lot Anton,
I was confused with "ata-generic" entry at p...@3.0 node.
Now the things are pretty much clear..
Earlier we thought that IORD and IOWR pins would be from GPIO, so thought
had to do bit-banging. But after going through the schematics, we come to
know that pins could be from LGPL0/1.
On Mon, Aug 2, 2010 at 11:29 PM, Anton Vorontsov <cbouatmai...@gmail.com>wrote:
> On Mon, Aug 02, 2010 at 07:44:22PM +0530, Atul Deshmukh wrote:
> > Thanks a lot Anton,
> > From the dts entry given below,
> >
> > local...@e0005000 {
> > #address-cells = <2>;
> > #size-cells = <1>;
> > compatible = "fsl,mpc8349e-localbus",
> > "fsl,pq2pro-localbus";
> > reg = <0xe0005000 0xd8>;
> > ranges = <0x3 0x0 0xf0000000 0x210>;
> > p...@3,0 {
> > compatible = "fsl,mpc8349emitx-pata",
> > "ata-generic";
> > reg = <0x3 0x0 0x10 0x3 0x20c 0x4>;
> > reg-shift = <1>;
> > pio-mode = <6>;
> > interrupts = <23 0x8>;
> > interrupt-parent = <&ipic>;
> > };
> > };
> >
> >
> The driver is drivers/ata/pata_of_platform.c.
>
> > controls PCI-based IDE-controller where we can plug in our CF card...Am I
> > right???
>
> Nope, no PCI involved. CF is almost* directly connected to
> the localbus.
>
> > But in our design we don't use any controller we directly connects CF
> card
> > to local bus where UPM controls it..
>
> Yes, that's exactly how CF is done on MPC8349EmITX boards.
>
> > Can you please explain how the interface is implemented in MPC8349..
>
> Via localbus + UPM.
>
> * 'almost' is because there are some buffers and inverters, see
> schematics:
>
> http://www.freescale.com/files/32bit/hardware_tools/schematics/MPC8349EMITXESCH.pdf
>
> --
> Anton Vorontsov
> email: cbouatmai...@gmail.com
> irc://irc.freenode.net/bd2
>
--
Regards,
Atul
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