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ARM: dts: OMAP3: reduce GPMC mapped registers address space

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Currently the OMAP General-Purpose Memory Controller (GPMC) device
node maps 16 MB of address space for its hardware registers.

This is because the OMAP Technical Reference Manual says that the
GPMC module register address space size is 16 MB. But in practice
the maximum address offset used by a GPMC register is 0x02d0.

So, there is no need to map such a big address space for GPMC regs.

This change was suggested by Jon Hunter [1].

[1]: https://patchwork.kernel.org/patch/2057111/

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
This commit is contained in:
Javier Martinez Canillas 2013-02-27 02:30:51 +01:00 committed by Benoit Cousson
parent 6e8489dffd
commit 41644e75c5
1 changed files with 1 additions and 1 deletions
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2
arch/arm/boot/dts/omap3.dtsi
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@ -431,7 +431,7 @@
gpmc: gpmc@6e000000 {
compatible = "ti,omap3430-gpmc";
ti,hwmods = "gpmc";
reg = <0x6e000000 0x1000000>;
reg = <0x6e000000 0x02d0>;
interrupts = <20>;
gpmc,num-cs = <8>;
gpmc,num-waitpins = <4>;