[PATCH 2/5] Add legacy devices to mpc8641_hpcn.dts
Jon Loeliger
jdl at freescale.com
Thu May 17 02:37:01 EST 2007
On Tue, 2007-05-15 at 11:27, Wade Farnsworth wrote:
> This adds device nodes for the ISA devices on the MPC8641 HPCN to the
> dts. Additionally, it moves the node for the i8259 to the isa bus,
> since the i8259 is actually on that bus.
This is good. Couple of quick comments below.
> Index: linux-2.6-8641/arch/powerpc/boot/dts/mpc8641_hpcn.dts
> ===================================================================
> --- linux-2.6-8641.orig/arch/powerpc/boot/dts/mpc8641_hpcn.dts
> +++ linux-2.6-8641/arch/powerpc/boot/dts/mpc8641_hpcn.dts
> @@ -285,17 +285,45 @@
> + isa at f0 {
> + device_type = "isa";
> #interrupt-cells = <2>;
Yea, thanks. BTW, will this be sufficient to now identify the
primary controller and not doink with the legacy IO ports now?
Or is that being handled differently somehow?
> + #size-cells = <1>;
> + #address-cells = <2>;
> + reg = <f000 0 0 0 0>;
> + ranges = <1 0 01000000 0 0 00001000>;
> + interrupt-parent = <4d0>;
That 4d0 should likely be &i8259.
> + 8042 at 60 {
> + device_type = "8042";
> + reg = <1 60 1 1 64 1>;
> + interrupts = <1 3 c 3>;
> + interrupt-parent = <4d0>;
> + };
Ditto.
> + rtc at 70 {
> + device_type = "rtc";
> + reg = <1 70 2>;
> + };
Is "rtc" a standard OF device, or are we making up a
new thing that should be documented in booting-with-OF.txt ?
And is the plan to somehow use this entry in the future?
Thanks,
jdl
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