On 22.12.2016 06:49, Moritz Fischer wrote:
> From: Moritz Fischer <mdf@xxxxxxxxxx>
>
> The Zynq Ultrascale MP uses version 1.4 of the Cadence IP core
> which fixes some silicon bugs that needed software workarounds
> in Version 1.0 that was used on Zynq systems.
>
> Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
> Cc: Michal Simek <michal.simek@xxxxxxxxxx>
> Cc: Sören Brinkmann <soren.brinkmann@xxxxxxxxxx>
> Cc: U-Boot List <u-boot@xxxxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> ---
>
> Hi Michal,
>
> I think this is a slip up and should be r1p14 for
> Ultrascale ZynqMP. drivers/i2c/i2c-cadence.c already uses this.
> I Cc'd the u-boot list, because the same change would be required there.
>
> Cheers,
>
> Moritz
>
> ---
> arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> index 68a90833..a5a5f91 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> @@ -175,7 +175,7 @@
> };
>
> i2c0: i2c@ff020000 {
> - compatible = "cdns,i2c-r1p10";
> + compatible = "cdns,i2c-r1p14";
I was checking this internally and p10 is doing something what p14
doesn't need to do. That's why this should be
compatible = "cdns,i2c-r1p14", "cdns,i2c-r1p10";
The same of course for u-boot where also p14 should be added to the driver.
Thanks,
Michal
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