From 681d7400c79237538f9114328349efe8964dbe41 Mon Sep 17 00:00:00 2001
From: morgan <mc@m-labs.hk>
Date: Mon, 3 Jun 2024 15:58:13 +0800
Subject: [PATCH] FMCIO: add cxp_4r adepter io

---
 src/gateware/coaxpress_4r.py | 87 ++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/gateware/coaxpress_4r.py

diff --git a/src/gateware/coaxpress_4r.py b/src/gateware/coaxpress_4r.py
new file mode 100644
index 0000000..e763c79
--- /dev/null
+++ b/src/gateware/coaxpress_4r.py
@@ -0,0 +1,87 @@
+from migen.build.generic_platform import *
+
+fmc_adapter_io = [
+
+    # CoaXPress high speed link
+    ("CXP_HS", 0,
+        Subsignal("txp", Pins("HPC:DP0_C2M_P")),
+        Subsignal("txn", Pins("HPC:DP0_C2M_N")),
+        Subsignal("rxp", Pins("HPC:DP0_M2C_P")),
+        Subsignal("rxn", Pins("HPC:DP0_M2C_N")),
+    ),
+    ("CXP_HS", 1,
+        Subsignal("txp", Pins("HPC:DP1_C2M_P")),
+        Subsignal("txn", Pins("HPC:DP1_C2M_N")),
+        Subsignal("rxp", Pins("HPC:DP1_M2C_P")),
+        Subsignal("rxn", Pins("HPC:DP1_M2C_N")),
+    ),
+    ("CXP_HS", 2,
+        Subsignal("txp", Pins("HPC:DP2_C2M_P")),
+        Subsignal("txn", Pins("HPC:DP2_C2M_N")),
+        Subsignal("rxp", Pins("HPC:DP2_M2C_P")),
+        Subsignal("rxn", Pins("HPC:DP2_M2C_n")),
+    ),
+    ("CXP_HS", 3,
+        Subsignal("txp", Pins("HPC:DP3_C2M_P")),
+        Subsignal("txn", Pins("HPC:DP3_C2M_N")),
+        Subsignal("rxp", Pins("HPC:DP3_M2C_P")),
+        Subsignal("rxn", Pins("HPC:DP3_M2C_N")),
+    ),
+
+    # CoaXPress low speed link
+    ("CXP_LS", 0, Pins("HPC:LA00_CC_P"), IOStandard("LVCMOS25")),
+    ("CXP_LS", 1, Pins("HPC:LA01_CC_N"), IOStandard("LVCMOS25")),
+    ("CXP_LS", 2, Pins("HPC:LA01_CC_P"), IOStandard("LVCMOS25")),
+    ("CXP_LS", 3, Pins("HPC:LA02_N"), IOStandard("LVCMOS25")),
+
+    # CoaXPress green and red LED
+    ("CXP_LED", 0,
+        Subsignal("green", Pins("HPC:LA11_P"), IOStandard("LVCMOS25")),
+        Subsignal("red", Pins("HPC:LA11_N"), IOStandard("LVCMOS25")),
+    ),
+    ("CXP_LED", 1,
+        Subsignal("green", Pins("HPC:LA12_P"), IOStandard("LVCMOS25")),
+        Subsignal("red", Pins("HPC:LA12_N"), IOStandard("LVCMOS25")),
+    ),
+    ("CXP_LED", 2,
+        Subsignal("green", Pins("HPC:LA13_P"), IOStandard("LVCMOS25")),
+        Subsignal("red", Pins("HPC:LA13_N"), IOStandard("LVCMOS25")),
+    ),
+    ("CXP_LED", 3,
+        Subsignal("green", Pins("HPC:LA14_P"), IOStandard("LVCMOS25")),
+        Subsignal("red", Pins("HPC:LA14_N"), IOStandard("LVCMOS25")),
+    ),
+
+    # Power over CoaXPress 
+    ("PoCXP", 0,
+        Subsignal("enable", Pins("HPC:LA21_N"), IOStandard("LVCMOS25")),
+        Subsignal("alert", Pins("HPC:LA18_CC_P"), IOStandard("LVCMOS25")),
+    ),
+    ("PoCXP", 1,
+        Subsignal("enable", Pins("HPC:LA21_P"), IOStandard("LVCMOS25")),
+        Subsignal("alert", Pins("HPC:LA19_N"), IOStandard("LVCMOS25")),
+    ),
+    ("PoCXP", 2,
+        Subsignal("enable", Pins("HPC:LA22_N"), IOStandard("LVCMOS25")),
+        Subsignal("alert", Pins("HPC:LA19_P"), IOStandard("LVCMOS25")),
+    ),
+    ("PoCXP", 3,
+        Subsignal("enable", Pins("HPC:LA22_P"), IOStandard("LVCMOS25")),
+        Subsignal("alert", Pins("HPC:LA20_N"), IOStandard("LVCMOS25")),
+    ),
+
+    ("i2c_fmc", 0,
+        Subsignal("scl", Pins("HPC:IIC_SCL")),
+        Subsignal("sda", Pins("HPC:IIC_SDA")),
+        IOStandard("LVCMOS25")
+    ),
+
+    ("3V3", 0, Pins("HPC:PG_M2C")),
+    ("GND", 0, Pins("HPC:PRSNT_M2C_L HPC:CLK0_M2C_P")),
+    ("VADJ", 0, Pins("HPC:GBTCLK1_M2C_N CLK0_M2C_N")),
+
+    ("clk125_fmc", 0,
+        Subsignal("p", Pins("HPC:GBTCLK0_M2C_P")),
+        Subsignal("n", Pins("HPC:GBTCLK0_M2C_n")),
+    ),
+]