[coreboot-gerrit] Change in ...coreboot[master]: mb/google/octopus: Override emmc DLL values for Ampton

[Kane Chen (Code Review)]

Kane Chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31048

Change subject: mb/google/octopus: Override emmc DLL values for Ampton
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mb/google/octopus: Override emmc DLL values for Ampton

New emmc DLL values for Ampton

BUG=b:122307153
TEST=Boot to OS on 5 systems

Change-Id: Iadd58d254f4bb384f483c2c3e5615f7569d5211c
Signed-off-by: Kane Chen 
---
M src/mainboard/google/octopus/variants/ampton/overridetree.cb
1 file changed, 41 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/48/31048/1

diff --git a/src/mainboard/google/octopus/variants/ampton/overridetree.cb b/src/mainboard/google/octopus/variants/ampton/overridetree.cb
index 1b4b9ba..10ff7d7 100644
--- a/src/mainboard/google/octopus/variants/ampton/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/ampton/overridetree.cb
@@ -1,5 +1,46 @@
 chip soc/intel/apollolake

+	# EMMC Tx CMD Delay
+	# Refer to EDS-Vol2-16.32.
+	# [14:8] steps of delay for DDR mode, each 125ps.
+	# [6:0] steps of delay for SDR mode, each 125ps.
+	register "emmc_tx_cmd_cntl" = "0x505"
+
+	# EMMC TX DATA Delay 1
+	# Refer to EDS-Vol2-16.33.
+	# [14:8] steps of delay for HS400, each 125ps.
+	# [6:0] steps of delay for SDR104/HS200, each 125ps.
+	register "emmc_tx_data_cntl1" = "0x0a0c"
+
+	# EMMC TX DATA Delay 2
+	# Refer to EDS-Vol2-16.34.
+	# [30:24] steps of delay for SDR50, each 125ps.
+	# [22:16] steps of delay for DDR50, each 125ps.
+	# [14:8] steps of delay for SDR25/HS50, each 125ps.
+	# [6:0] steps of delay for SDR12, each 125ps.
+	register "emmc_tx_data_cntl2" = "0x1c292929"
+
+	# EMMC RX CMD/DATA Delay 1
+	# Refer to EDS-Vol2-16.35.
+	# [30:24] steps of delay for SDR50, each 125ps.
+	# [22:16] steps of delay for DDR50, each 125ps.
+	# [14:8] steps of delay for SDR25/HS50, each 125ps.
+	# [6:0] steps of delay for SDR12, each 125ps.
+	register "emmc_rx_cmd_data_cntl1" = "0x001a1c1c"
+
+	# EMMC RX CMD/DATA Delay 2
+	# Refer to EDS-Vol2-16.37.
+	# [17:16] stands for Rx Clock before Output Buffer
+	# [14:8] steps of delay for Auto Tuning Mode, each 125ps.
+	# [6:0] steps of delay for HS200, each 125ps.
+	register "emmc_rx_cmd_data_cntl2" = "0x10026"
+
+	# EMMC Rx Strobe Delay
+	# Refer to EDS-Vol2-16.36.
+	# [14:8] Rx Strobe Delay DLL 1(HS400 Mode), each 125ps.
+	# [6:0] Rx Strobe Delay DLL 2(HS400 Mode), each 125ps.
+	register "emmc_rx_strobe_cntl" = "0x0a0a"
+
    register "common_soc_config" = "{
    	.gspi[0] = {
    		.speed_mhz = 1,