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-rw-r--r--src/mainboard/google/brya/variants/uldren/overridetree.cb45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/uldren/overridetree.cb b/src/mainboard/google/brya/variants/uldren/overridetree.cb
index 63e14c56fb..9ca61b7c4e 100644
--- a/src/mainboard/google/brya/variants/uldren/overridetree.cb
+++ b/src/mainboard/google/brya/variants/uldren/overridetree.cb
@@ -1,6 +1,51 @@
chip soc/intel/alderlake
register "sagv" = "SaGv_Enabled"
+ # EMMC Tx CMD Delay
+ # Refer to EDS-Vol2-42.3.7.
+ # [14:8] steps of delay for DDR mode, each 125ps, range: 0 - 39.
+ # [6:0] steps of delay for SDR mode, each 125ps, range: 0 - 39.
+ register "common_soc_config.emmc_dll.emmc_tx_cmd_cntl" = "0x00000505"
+
+ # EMMC TX DATA Delay 1
+ # Refer to EDS-Vol2-42.3.8.
+ # [14:8] steps of delay for HS400, each 125ps, range: 0 - 78.
+ # [6:0] steps of delay for SDR104/HS200, each 125ps, range: 0 - 79.
+ register "common_soc_config.emmc_dll.emmc_tx_data_cntl1" = "0x00000a12"
+
+ # EMMC TX DATA Delay 2
+ # Refer to EDS-Vol2-42.3.9.
+ # [30:24] steps of delay for SDR50, each 125ps, range: 0 - 79.
+ # [22:16] steps of delay for DDR50, each 125ps, range: 0 - 78.
+ # [14:8] steps of delay for SDR25/HS50, each 125ps, range: 0 -79.
+ # [6:0] steps of delay for SDR12, each 125ps. Range: 0 - 79.
+ register "common_soc_config.emmc_dll.emmc_tx_data_cntl2" = "0x1c292828"
+
+ # EMMC RX CMD/DATA Delay 1
+ # Refer to EDS-Vol2-42.3.10.
+ # [30:24] steps of delay for SDR50, each 125ps, range: 0 - 119.
+ # [22:16] steps of delay for DDR50, each 125ps, range: 0 - 78.
+ # [14:8] steps of delay for SDR25/HS50, each 125ps, range: 0 - 119.
+ # [6:0] steps of delay for SDR12, each 125ps, range: 0 - 119.
+ register "common_soc_config.emmc_dll.emmc_rx_cmd_data_cntl1" = "0x1c175a3b"
+
+ # EMMC RX CMD/DATA Delay 2
+ # Refer to EDS-Vol2-42.3.12.
+ # [17:16] stands for Rx Clock before Output Buffer,
+ # 00: Rx clock after output buffer,
+ # 01: Rx clock before output buffer,
+ # 10: Automatic selection based on working mode.
+ # 11: Reserved
+ # [14:8] steps of delay for Auto Tuning Mode, each 125ps, range: 0 - 39.
+ # [6:0] steps of delay for HS200, each 125ps, range: 0 - 79.
+ register "common_soc_config.emmc_dll.emmc_rx_cmd_data_cntl2" = "0x00010023"
+
+ # EMMC Rx Strobe Delay
+ # Refer to EDS-Vol2-42.3.11.
+ # [14:8] Rx Strobe Delay DLL 1(HS400 Mode), each 125ps, range: 0 - 39.
+ # [6:0] Rx Strobe Delay DLL 2(HS400 Mode), each 125ps, range: 0 - 39.
+ register "common_soc_config.emmc_dll.emmc_rx_strobe_cntl" = "0x00011111"
+
# SOC Aux orientation override:
# This is a bitfield that corresponds to up to 4 TCSS ports.
# Bits (0,1) allocated for TCSS Port1 configuration and Bits (2,3)for TCSS Port2.