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Commit e6015c1f authored by Seungwon Jeon's avatar Seungwon Jeon Committed by Kukjin Kim
Browse files

ARM: dts: disable MDMA1 node for exynos5420 



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: default avatarSeungwon Jeon <tgih.jun@samsung.com>
Tested-by: default avatarJavi Merino <javi.merino@arm.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 989ff3fd

arch/arm/boot/dts/exynos5420-arndale-octa.dts

+0 −12
Original line number Original line Diff line number Diff line
@@ -364,16 +364,4 @@ 
			gpio-key,wakeup;

			gpio-key,wakeup;

		};

		};

	};

	};



	amba {

		mdma1: mdma@11C10000 {

			/*

			 * 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";

		};

	};

};
 
};

arch/arm/boot/dts/exynos5420.dtsi

+7 −0
Original line number Original line Diff line number Diff line
@@ -336,6 +336,13 @@ 
			#dma-cells = <1>;

			#dma-cells = <1>;

			#dma-channels = <8>;

			#dma-channels = <8>;

			#dma-requests = <1>;

			#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";

		};

		};

	};

	};