powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers

The i2c controllers on the P2040/P2041 have an erratum where the
documented scheme for i2c bus recovery will not work (A-004447). A
different mechanism is needed which is documented in the P2040 Chip
Errata Rev Q (latest available at the time of writing).

Signed-off-by: Chris Packham <[email protected]>
Acked-by: Michael Ellerman <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

diff --git a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi
index 872e4485dc3f033876ee7d69f59fa0add91a1783..ddc018d42252f9c49eb994705d0dde3774bbaabb 100644 (file)
--- a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi
@@ -371,7 +371,23 @@
        };
 
 /include/ "qoriq-i2c-0.dtsi"
+       i2c@118000 {
+               fsl,i2c-erratum-a004447;
+       };
+
+       i2c@118100 {
+               fsl,i2c-erratum-a004447;
+       };
+
 /include/ "qoriq-i2c-1.dtsi"
+       i2c@119000 {
+               fsl,i2c-erratum-a004447;
+       };
+
+       i2c@119100 {
+               fsl,i2c-erratum-a004447;
+       };
+
 /include/ "qoriq-duart-0.dtsi"
 /include/ "qoriq-duart-1.dtsi"
 /include/ "qoriq-gpio-0.dtsi"