Change in coreboot[master]: mb/siemens/mc_apl1: Set up RTC backup mode to primary cell

[Werner Zeh (Code Review)]

Werner Zeh has uploaded this change for review. ( https://review.coreboot.org/20414

Change subject: mb/siemens/mc_apl1: Set up RTC backup mode to primary cell
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mb/siemens/mc_apl1: Set up RTC backup mode to primary cell

Set RX6110SA RTC backup mode to primary cell. This mode reduces the
backup current consumption of the RTC.

Change-Id: I7c0c26a0ed5d8f48587acc917f8bb1c5c2b8869a
Signed-off-by: Werner Zeh 
---
M src/mainboard/siemens/mc_apl1/devicetree.cb
1 file changed, 4 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/14/20414/1

diff --git a/src/mainboard/siemens/mc_apl1/devicetree.cb b/src/mainboard/siemens/mc_apl1/devicetree.cb
index 55734a2..3979870 100644
--- a/src/mainboard/siemens/mc_apl1/devicetree.cb
+++ b/src/mainboard/siemens/mc_apl1/devicetree.cb
@@ -65,7 +65,10 @@
    	device pci 16.0 on	# - I2C 0
    		# Enable external RTC chip
    		chip drivers/i2c/rx6110sa
-				register "cof_selection" = "0"
+				register "pmon_sampling" = "PMON_SAMPL_256_MS"
+				register "bks_on" = "0"
+				register "bks_off" = "1"
+				register "iocut_en" = "1"
    			register "set_user_date" = "1"
    			register "user_year" = "04"
    			register "user_month" = "07"