Messages in this thread Patch in this message | | | From | Chris Packham <> | Subject | [PATCH v3 3/4] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers | Date | Wed, 12 May 2021 09:20:51 +1200 |
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The i2c controllers on the P1010 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 P1010 Chip Errata Rev L.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> ---
Notes: Changes in v3: - New
arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi index c2717f31925a..ccda0a91abf0 100644 --- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi @@ -122,7 +122,15 @@ memory-controller@2000 { }; /include/ "pq3-i2c-0.dtsi" + i2c@3000 { + fsl,i2c-erratum-a004447; + }; + /include/ "pq3-i2c-1.dtsi" + i2c@3100 { + fsl,i2c-erratum-a004447; + }; + /include/ "pq3-duart-0.dtsi" /include/ "pq3-espi-0.dtsi" spi0: spi@7000 { -- 2.31.1
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