Re: [PATCH 1/2] Move Virtex-II Pro / ML300 port over to the platform bus.
From: Grant Likely <hidden>
Date: 2005-12-06 21:13:06
Rick Moleres wrote:
Grant, Would it be possible for me to take a closer look at the work you're doing in this regard? We've been hatching some ideas around with ways to separate the dependency on xparamters.h/_g.c files to accommodate run-time configuration, but our workload and priorities haven't allowed us to spend much time here.
Certainly. I'm getting my env cleaned up today, and I'll be sending patches to the mailing list shortly. Essentially what I'm doing is making any non-xilinx code get parameters from platform bus devices instead of xparameters.h (Things like processor speed, interrupts, etc). This of course is only a first step. It allows xparameters to change w/o recompiling the world. Xilinx drivers are another matter since each of them include xparameters directly.
We're taking a baby step towards that by just moving _LookupConfig out of the main driver .c file and adding a new _Init function that takes a _Config structure as an argument rather than depend internally on the _g.c table.
You're making me happy here. :)
It would be nice to know, though, that work we're doing won't completely conflict with work others like yourself are doing.
It doesn't sound like it will. A _Config struct could be built up from data in the platform device (or embedded in the platform device itself). Once the flattened device tree work is in, we could build up the whole thing from data provided by the bootloader. No recompile needed at all. :) g.
-----Original Message----- From: linuxppc-embedded-bounces@ozlabs.org [mailto:linuxppc-embedded-bounces@ozlabs.org] On Behalf Of Grant Likely Sent: Monday, December 05, 2005 9:52 AM To: Peter Korsgaard; linuxppc-embedded Subject: Re: [PATCH 1/2] Move Virtex-II Pro / ML300 port over to the platform bus. Peter Korsgaard wrote:quoted
On 9/20/05, Grant Likely [off-list ref] wrote:quoted
On 9/20/05, Peter Korsgaard [off-list ref] wrote:quoted
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" " == Grant Likely [off-list ref] writes:Hi,quoted
This is a large patch that moves the ML300 to the platform bus. It also isolates most of the linux tree from changes to the xparameters.h file. Ultimately, the goal is to move everything over to the flattened device tree for telling the kernel about devices. That way xparameters.h can go away entirely for the kernel proper. (Isolated to the bootloader)