From: Biwen Li <biwen.li@xxxxxxx>
The 'fsl,ippdexpcr1-alt-addr' property is used to handle an errata A-008646
on LS1021A
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
