Change in coreboot[master]: mb/siemens/mc_ehl2: Move RTC RX6110SA from SMBus to I2C2

[Mario Scheithauer (Code Review)]

Mario Scheithauer has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/58112 )

Change subject: mb/siemens/mc_ehl2: Move RTC RX6110SA from SMBus to I2C2
......................................................................

mb/siemens/mc_ehl2: Move RTC RX6110SA from SMBus to I2C2

This board have the RTC RX6110SA connected to the I2C2 instead of SMBus
as in mc_ehl1. Set the bus speed for I2C2 to 100 kHz, since this RTC
only supports the standard speed.

Change-Id: I679c6397fa0d213a25eebaf8a9e0bda9941acd26
Signed-off-by: Mario Scheithauer 
---
M src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
1 file changed, 23 insertions(+), 17 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/12/58112/1

diff --git a/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb b/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
index be98a15..859f08b 100644
--- a/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
+++ b/src/mainboard/siemens/mc_ehl/variants/mc_ehl2/devicetree.cb
@@ -135,6 +135,12 @@
    register "PchTsnGbeLinkSpeed" = "Tsn_2_5_Gbps"
    register "PchTsnGbeSgmiiEnable" = "1"

+	register "common_soc_config" = "{
+		.i2c[2] = {
+			.speed = I2C_SPEED_STANDARD,
+		},
+	}"
+
    device domain 0 on
    	device pci 00.0 on	end # Host Bridge
    	device pci 02.0 on	end # Integrated Graphics Device
@@ -173,7 +179,22 @@

device pci 15.0 off	end # I2C0
    	device pci 15.1 on	end # I2C1
-		device pci 15.2 off	end # I2C2
+		device pci 15.2 on	    # I2C2
+			# Enable external RTC chip
+			chip drivers/i2c/rx6110sa
+				register "bus_speed" = "I2C_SPEED_STANDARD"
+				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"
+				register "user_day" = "01"
+				register "user_weekday" = "4"
+				device i2c 0x32 on end  # RTC RX6110 SA
+			end
+		end
    	device pci 15.3 off	end # I2C3

device pci 16.0 on	end # Management Engine Interface 1
@@ -240,22 +261,7 @@
    	device pci 1f.1 on	end # P2SB
    	device pci 1f.2 hidden	end # Power Management Controller
    	device pci 1f.3 off	end # Intel cAVS/HDA
-		device pci 1f.4	on	    # SMBus
-			# Enable external RTC chip
-			chip drivers/i2c/rx6110sa
-				register "bus_speed" = "I2C_SPEED_STANDARD"
-				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"
-				register "user_day" = "01"
-				register "user_weekday" = "4"
-				device i2c 0x32 on end  # RTC RX6110 SA
-			end
-		end
+		device pci 1f.4	on	end # SMBus
    	device pci 1f.5 on	end # PCH SPI (flash & TPM)
    	device pci 1f.7 off	end # PCH Intel Trace Hub
    end