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<TITLE>RE: Device tree BSP</TITLE>
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<P><FONT SIZE=2>I'm not exactly sure what you're trying to do here, but it doesn't look right to me.<BR>
In particular, why would I have to have a separate core for these functions?<BR>
Furthermore, I'm sure there must be some generic mechanisms that can/should be used for these kind of things.<BR>
In general, we shouldn't reinvent the wheel here..<BR>
<BR>
CC'ing devicetree-discuss@ozlabs.org, which is really the best place to ask such questions.<BR>
<BR>
Steve<BR>
<BR>
-----Original Message-----<BR>
From: Michal Simek [<A HREF="mailto:michal.simek@petalogix.com">mailto:michal.simek@petalogix.com</A>]<BR>
Sent: Tue 6/30/2009 4:18 AM<BR>
To: John Williams; John Linn; David DeBonis; Stephen Neuendorffer<BR>
Subject: Device tree BSP<BR>
<BR>
Hi all,<BR>
<BR>
I need to talk to you about names for at least one new compatible<BR>
property name.<BR>
It is for heartbeat led gpio and (not important now) reset gpio.<BR>
Currently linux kernel takes<BR>
first gpio for heartbeat led which needn't be led gpio that's why we<BR>
need to specify which gpio<BR>
node is for it. I think we can't used it aliases because in case you<BR>
enable gpio linux driver<BR>
heartbeat go away because that node had gpio compatible property.<BR>
<BR>
Our proposed compatible names are xlnx,heartbeat-gpio-1.00.a and<BR>
xlnx,reset-gpio-1.00.a<BR>
which replaced all gpio compatible properties. Below are two parts of<BR>
fragments.<BR>
<BR>
LEDs_8Bit: gpio@42000000 {<BR>
compatible = "xlnx,heartbeat-gpio-1.00.a";<BR>
reg = < 0x42000000 0x10000 >;<BR>
xlnx,all-inputs = <0x0>;<BR>
<BR>
Push_Buttons: gpio@42600000 {<BR>
compatible = "xlnx,reset-gpio-1.00.a";<BR>
interrupt-parent = <&xps_intc_0>;<BR>
interrupts = < 4 2 >;<BR>
<BR>
If you agree with heartbeat name, I will change it in linux kernel code.<BR>
<BR>
Thanks,<BR>
Michal<BR>
<BR>
--<BR>
Michal Simek, Ing. (M.Eng)<BR>
PetaLogix - Linux Solutions for a Reconfigurable World<BR>
w: www.petalogix.com p: +61-7-30090663,+42-0-721842854 f: +61-7-30090663<BR>
<BR>
<BR>
<BR>
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