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ARM: dts: disable MDMA1 node for exynos5420 

commit e6015c1f8a upstream.

This change places MDMA1 in disabled node for Exynos5420.
If MDMA1 region is configured with secure mode, it makes
the boot failure with the following on smdk5420 board.
("Unhandled fault: imprecise external abort (0x1406) at 0x00000000")
Thus, arndale-octa board don't need to do the same thing anymore.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tushar Behera <tushar.b@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Seungwon Jeon 2014-05-09 07:02:33 +09:00 committed by Greg Kroah-Hartman
parent bbae7add62
commit fa3a80d024
1 changed files with 7 additions and 0 deletions
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7
arch/arm/boot/dts/exynos5420.dtsi
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@ -323,6 +323,13 @@
#dma-cells = <1>;
#dma-channels = <8>;
#dma-requests = <1>;
/*
* MDMA1 can support both secure and non-secure
* AXI transactions. When this is enabled in the kernel
* for boards that run in secure mode, we are getting
* imprecise external aborts causing the kernel to oops.
*/
status = "disabled";
};
};