Messages in this thread | | | Date | Wed, 4 Sep 2013 10:59:09 -0700 | From | Tony Lindgren <> | Subject | Re: [PATCH v4 5/5] clk: dt: binding for basic gate clock |
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* Haojian Zhuang <haojian.zhuang@linaro.org> [130903 20:11]: > > We can see that it'll try to find static mapping. What's the static mapping? > If we define iotable in machine driver, we have the static mapping, just like > debug_ll. If we parse everything from DTS file, it'll always get a new virtual > address from vm area. So it always create a new page mapping even for one > register.
I may not follow you here.. But it seems that you've missing something with the static mapping: It's found based on the physical address. So if you create static mappings for your SoC with iotable_init(), those mappings will be available everywhere including drivers when you do ioremap().
Regards,
Tony
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