> -----Original Message-----
> From: Ran Wang <ran.wang_1@xxxxxxx>
> Sent: Wednesday, September 16, 2020 3:18 AM
> To: Leo Li <leoyang.li@xxxxxxx>; Rob Herring <robh+dt@xxxxxxxxxx>;
> Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Biwen Li
> <biwen.li@xxxxxxx>; Ran Wang <ran.wang_1@xxxxxxx>
> Subject: [PATCH 1/5] Documentation: dt: binding: fsl: Add 'fsl,ippdexpcr1-alt-
> addr' property
>
> From: Biwen Li <biwen.li@xxxxxxx>
>
> The 'fsl,ippdexpcr1-alt-addr' property is used to handle an errata A-008646 on
> LS1021A
It looks like the previous version of this patch has gotten the reviewed-by from Rob. It would be good to be added to the patch for new submission.
>
> Signed-off-by: Biwen Li <biwen.li@xxxxxxx>
> Signed-off-by: Ran Wang <ran.wang_1@xxxxxxx>
> ---
> Documentation/devicetree/bindings/soc/fsl/rcpm.txt | 19
> +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt
> b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt
> index 5a33619..1be58a3 100644
> --- a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt
> +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt
> @@ -34,6 +34,11 @@ Chassis Version Example Chips
> Optional properties:
> - little-endian : RCPM register block is Little Endian. Without it RCPM
> will be Big Endian (default case).
> + - fsl,ippdexpcr1-alt-addr : The property is related to a hardware issue
> + on SoC LS1021A and only needed on SoC LS1021A.
> + Must include 2 entries:
> + The first entry must be a link to the SCFG device node.
> + The 2nd entry must be offset of register IPPDEXPCR1 in SCFG.
>
> Example:
> The RCPM node for T4240:
> @@ -43,6 +48,20 @@ The RCPM node for T4240:
> #fsl,rcpm-wakeup-cells = <2>;
> };
>
> +The RCPM node for LS1021A:
> + rcpm: rcpm@1ee2140 {
> + compatible = "fsl,ls1021a-rcpm", "fsl,qoriq-rcpm-2.1+";
> + reg = <0x0 0x1ee2140 0x0 0x8>;
> + #fsl,rcpm-wakeup-cells = <2>;
> +
> + /*
> + * The second and third entry compose an alt offset
> + * address for IPPDEXPCR1(SCFG_SPARECR8)
> + */
> + fsl,ippdexpcr1-alt-addr = <&scfg 0x51c>;
> + };
> +
> +
> * Freescale RCPM Wakeup Source Device Tree Bindings
> -------------------------------------------
> Required fsl,rcpm-wakeup property should be added to a device node if the
> device
> --
> 2.7.4
