From: Ran Wang <ran.wang_1@nxp.com>
To: Li Yang <leoyang.li@nxp.com>, Rob Herring <robh+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org, Biwen Li <biwen.li@nxp.com>,
linux-kernel@vger.kernel.org, Ran Wang <ran.wang_1@nxp.com>,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] Documentation: dt: binding: fsl: Add 'fsl, ippdexpcr1-alt-addr' property
Date: Wed, 16 Sep 2020 16:18:27 +0800 [thread overview]
Message-ID: <20200916081831.24747-1-ran.wang_1@nxp.com> (raw)
From: Biwen Li <biwen.li@nxp.com>
The 'fsl,ippdexpcr1-alt-addr' 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>
---
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
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next reply other threads:[~2020-09-16 8:28 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-16 8:18 Ran Wang [this message]
2020-09-16 8:18 ` [PATCH 2/5] soc: fsl: handle RCPM errata A-008646 on SoC LS1021A Ran Wang
2020-09-21 22:42 ` Leo Li
2020-09-22 2:16 ` Ran Wang
2020-09-16 8:18 ` [PATCH 3/5] arm: dts: ls1021a: fix that FlexTimer cannot wakeup system in deep sleep Ran Wang
2020-09-21 22:58 ` Leo Li
2020-09-22 2:18 ` Ran Wang
2020-09-16 8:18 ` [PATCH 4/5] arm: dts: ls1021a: fix flextimer failed to wake system Ran Wang
2020-09-21 23:01 ` Leo Li
2020-09-16 8:18 ` [PATCH 5/5] arm: dts: ls1021a: fix rcpm failed to claim resource Ran Wang
2020-09-21 21:57 ` Leo Li
2020-09-21 22:20 ` [PATCH 1/5] Documentation: dt: binding: fsl: Add 'fsl,ippdexpcr1-alt-addr' property Leo Li
2020-09-22 2:12 ` Ran Wang
2020-09-23 2:32 ` Rob Herring
2020-09-23 6:44 ` Ran Wang
2020-09-27 7:23 ` Ran Wang
2020-09-28 13:56 ` Rob Herring
2020-09-29 0:34 ` Ran Wang
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