| Message ID | 20200929082234.36619-1-ran.wang_1@nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/5] Documentation: dt: binding: fsl: Add 'fsl, ippdexpcr1-alt-reg' property | expand |
Hi Rob, On Tuesday, September 29, 2020 4:23 PM, Ran Wang wrote: > > From: Biwen Li <biwen.li@nxp.com> > > The 'fsl,ippdexpcr1-alt-reg' property is used to handle an errata A-008646 on > LS1021A. > > Signed-off-by: Biwen Li <biwen.li@nxp.com> > Signed-off-by: Ran Wang <ran.wang_1@nxp.com> > --- > Change in v3: > - Simplize related proterty definition and rename it. Could you please comment for this version? Thanks in advance. Regards, Ran > Change in v2: > - None > > Documentation/devicetree/bindings/soc/fsl/rcpm.txt | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > index 5a33619..62a22fc 100644 > --- a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > @@ -34,6 +34,9 @@ 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-reg : The property is trying to workaround a > + hardware issue (found on SoC LS1021A only), if pressent, RCPM driver > + will use SCFG_SPARECR8 as a shadow register for RCPM_IPPDEXPCR1. > > Example: > The RCPM node for T4240: > @@ -43,6 +46,15 @@ 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>; > + fsl,ippdexpcr1-alt-reg; > + }; > + > + > * 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
diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt index 5a33619..62a22fc 100644 --- a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt @@ -34,6 +34,9 @@ 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-reg : The property is trying to workaround a + hardware issue (found on SoC LS1021A only), if pressent, RCPM driver + will use SCFG_SPARECR8 as a shadow register for RCPM_IPPDEXPCR1. Example: The RCPM node for T4240: @@ -43,6 +46,15 @@ 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>; + fsl,ippdexpcr1-alt-reg; + }; + + * Freescale RCPM Wakeup Source Device Tree Bindings ------------------------------------------- Required fsl,rcpm-wakeup property should be added to a device node if the device