RE: [PATCH 1/5] Documentation: dt: binding: fsl: Add 'fsl,ippdexpcr1-alt-addr' property
From: Leo Li <hidden>
Date: 2020-09-21 22:20:08
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-----Original Message----- From: Ran Wang <redacted> Sent: Wednesday, September 16, 2020 3:18 AM To: Leo Li <redacted>; Rob Herring <robh+dt@kernel.org>; Shawn Guo [off-list ref] Cc: linuxppc-dev@lists.ozlabs.org; linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; Biwen Li [off-list ref]; Ran Wang [off-list ref] Subject: [PATCH 1/5] Documentation: dt: binding: fsl: Add 'fsl,ippdexpcr1-alt- addr' property From: Biwen Li <redacted> 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.
quoted hunk ↗ jump to hunk
Signed-off-by: Biwen Li <redacted> Signed-off-by: Ran Wang <redacted> --- Documentation/devicetree/bindings/soc/fsl/rcpm.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txtb/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 thedevice -- 2.7.4