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| author | Chris Packham <chris.packham@alliedtelesis.co.nz> | 2021-05-12 00:20:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-16 12:36:34 +0300 |
| commit | ff9b9756ceb945dae2f580497893fe91c481f52a (patch) | |
| tree | be32b9a19c5e9ec28f4bc9b67c107d5c9b5dde07 /arch/powerpc/boot/dts | |
| parent | 48ad312aeb7ca5405592efb3e80501a8a8160cf7 (diff) | |
| download | linux-ff9b9756ceb945dae2f580497893fe91c481f52a.tar.xz | |
powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers
[ Upstream commit 19ae697a1e4edf1d755b413e3aa38da65e2db23b ]
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>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc/boot/dts')
| -rw-r--r-- | arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi index af12ead88c5f..404f570ebe23 100644 --- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi @@ -122,7 +122,15 @@ }; /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 { |