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-rw-r--r--src/mainboard/siemens/mc_bdx1/Kconfig1
-rw-r--r--src/mainboard/siemens/mc_bdx1/devicetree.cb15
2 files changed, 15 insertions, 1 deletions
diff --git a/src/mainboard/siemens/mc_bdx1/Kconfig b/src/mainboard/siemens/mc_bdx1/Kconfig
index 960fe00b2e..e679eb590d 100644
--- a/src/mainboard/siemens/mc_bdx1/Kconfig
+++ b/src/mainboard/siemens/mc_bdx1/Kconfig
@@ -12,6 +12,7 @@ config BOARD_SPECIFIC_OPTIONS
select USE_SIEMENS_HWILIB
select DRIVER_INTEL_I210
select DRIVER_SIEMENS_NC_FPGA
+ select DRIVERS_I2C_PCF8523
config MAINBOARD_DIR
string
diff --git a/src/mainboard/siemens/mc_bdx1/devicetree.cb b/src/mainboard/siemens/mc_bdx1/devicetree.cb
index 30d99c22eb..804b78179a 100644
--- a/src/mainboard/siemens/mc_bdx1/devicetree.cb
+++ b/src/mainboard/siemens/mc_bdx1/devicetree.cb
@@ -9,7 +9,20 @@ chip soc/intel/fsp_broadwell_de
device pci 1d.0 on end # EHCI Controller
device pci 1f.0 on end # LPC Bridge
device pci 1f.2 on end # SATA Controller
- device pci 1f.3 on end # SMBus Controller
+ device pci 1f.3 on
+ # Enable external RTC chip
+ chip drivers/i2c/pcf8523
+ register "cap_sel" = "CAP_SEL_7_PF"
+ register "power_mode" = "PM_BAT_SW_OFF_LOW_DETECT_OFF"
+ register "cof_selection" = "COF_OFF"
+ register "set_user_date" = "1"
+ register "user_year" = "04"
+ register "user_month" = "07"
+ register "user_day" = "01"
+ register "user_weekday" = "0"
+ device i2c 0x68 on end # RTC PCF8523
+ end
+ end # SMBus Controller
device pci 1f.5 on end # SATA Controller
end
end