Commit ba72b5a4 authored Jun 20, 2018 by Fabio Estevam Committed by Shawn Guo Jul 01, 2018

ARM: dts: imx51: Add aipstz nodes



Currently when trying to use the 'devmem' tool to read/write
registers the following bus error is observed:

[   82.689185] Unhandled fault: external abort on non-linefetch (0x1018) at 0xb6ff10c4
[   82.697071] pgd = (ptrval)
[   82.699920] [b6ff10c4] *pgd=a87c5831, *pte=73fa8383, *ppte=73fa8a33
Bus error

Add the aipstz nodes, so that the following function from
imx51_dt_init() can work properly:

	imx_aips_allow_unprivileged_access("fsl,imx51-aipstz");

After adding these nodes, 'devmem' tool can work correctly,
which is very useful for debugging purposes.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

parent 4a23e6ee

arch/arm/boot/dts/imx51.dtsi

+10 −0

Original line number	Diff line number	Diff line
		@@ -250,6 +250,11 @@
		};
		};

		aipstz1: bridge@73f00000 {
		compatible = "fsl,imx51-aipstz";
		reg = <0x73f00000 0x60>;
		};

		usbotg: usb@73f80000 {
		compatible = "fsl,imx51-usb", "fsl,imx27-usb";
		reg = <0x73f80000 0x0200>;
		@@ -435,6 +440,11 @@
		reg = <0x80000000 0x10000000>;
		ranges;

		aipstz2: bridge@83f00000 {
		compatible = "fsl,imx51-aipstz";
		reg = <0x83f00000 0x60>;
		};

		iim: iim@83f98000 {
		compatible = "fsl,imx51-iim", "fsl,imx27-iim";
		reg = <0x83f98000 0x4000>;

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