[v5 2/3] arm: dts: ls1021a: fix that FlexTimer cannot wakeup system in deep sleep

[Biwen Li]

The patch fixes a bug that FlexTimer cannot
wakeup system in deep sleep.

Signed-off-by: Biwen Li <biwen.li at nxp.com>
---
Change in v5:
	- none

Change in v4:
	- update property name
	  fsl,ippdexpcr-alt-addr -> fsl,ippdexpcr1-alt-addr

Change in v3:
  	- update property name
	  fsl,rcpm-scfg -> fsl,ippdexpcr-alt-addr
  	  
Change in v2:
  	- none

 arch/arm/boot/dts/ls1021a.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index 816e2926c448..6659d83c3aa2 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -988,6 +988,12 @@
 			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 0x0 0x51c>;
 		};
 
 		ftm_alarm0: timer0 at 29d0000 {
-- 
2.17.1