From ba72b5a49957d92bfa7101a67e2414e166847291 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 20 Jun 2018 15:06:19 -0300 Subject: [PATCH] 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 Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx51.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi index 3f65492..d5ba31e 100644 --- a/arch/arm/boot/dts/imx51.dtsi +++ b/arch/arm/boot/dts/imx51.dtsi @@ -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>; -- 2.7.4