diff options
| -rw-r--r-- | src/mainboard/google/reef/devicetree.cb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/devicetree.cb b/src/mainboard/google/reef/devicetree.cb index f442872bd3..9775dc80c8 100644 --- a/src/mainboard/google/reef/devicetree.cb +++ b/src/mainboard/google/reef/devicetree.cb @@ -6,6 +6,31 @@ chip soc/intel/apollolake register "pcie_rp4_clkreq_pin" = "0" # wifi/bt + # EMMC TX DATA Delay 1# + # 0x0C[14:8] stands for 12*125 = 1500 pSec delay for HS400 + # 0x11[6:0] stands for 17*125 = 2125 pSec delay for SDR104/HS200 + register "emmc_tx_data_cntl1" = "0x0C11" # HS400 required + + # EMMC TX DATA Delay 2# + # 0x1C[30:24] stands for 28*125 = 3500 pSec delay for SDR50 + # 0x1C[22:16] stands for 28*125 = 3500 pSec delay for DDR50 + # 0x1C[14:8] stands for 28*125 = 3500 pSec delay for SDR25/HS50 + # 0x00[6:0] stands for 0 delay for SDR12/Compatibility mode + register "emmc_tx_data_cntl2" = "0x1c1c1c00" + + # EMMC RX CMD/DATA Delay 1# + # 0x1C[30:24] stands for 28*125 = 3500 pSec delay for SDR50 + # 0x1C[22:16] stands for 28*125 = 3500 pSec delay for DDR50 + # 0x1C[14:8] stands for 28*125 = 3500 pSec delay for SDR25/HS50 + # 0x00[6:0] stands for 0 delay for SDR12/Compatibility + register "emmc_rx_cmd_data_cntl1" = "0x1c1c1c00" + + # EMMC RX CMD/DATA Delay 2# + # 0x01[17:16] stands for Rx Clock before Output Buffer + # 0x00[14:8] stands for 0 delay for Auto Tuning Mode + # 0x1C[6:0] stands for 28*125 = 3500 pSec delay for SDR104/HS200 + register "emmc_rx_cmd_data_cntl2" = "0x1001c" + device domain 0 on device pci 00.0 on end # - Host Bridge device pci 00.1 on end # - DPTF |