paltforms/de10nano: simplify IO constraints (for consistency with others platforms).

litex_boards/platforms/de10nano.py

@@ -18,7 +18,7 @@ _io = [
     ("user_led", 3, Pins("V15"),  IOStandard("3.3-V LVTTL")),
     ("user_led", 4, Pins("AF26"), IOStandard("3.3-V LVTTL")),
     ("user_led", 5, Pins("AE26"), IOStandard("3.3-V LVTTL")),
-    ("user_led", 6, Pins("Y16"), IOStandard("3.3-V LVTTL")),
+    ("user_led", 6, Pins("Y16"),  IOStandard("3.3-V LVTTL")),
     ("user_led", 7, Pins("AA23"), IOStandard("3.3-V LVTTL")),
 
     ("key", 0, Pins("AH17"), IOStandard("3.3-V LVTTL")),
@@ -30,15 +30,13 @@ _io = [
     ("user_sw", 3, Pins("W20"), IOStandard("3.3-V LVTTL")),
 
     ("serial", 0,
-        Subsignal("tx", Pins("AH9")), # User I/O port on Mister
-        Subsignal("rx", Pins("AG11")),# User I/O port on Mister
-         IOStandard("3.3-V LVTTL"), Misc("WEAK_PULL_UP_RESISTOR ON"), Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\"")
+        Subsignal("tx", Pins("AH9"),  IOStandard("3.3-V LVTTL")), # User I/O port on Mister
+        Subsignal("rx", Pins("AG11"), IOStandard("3.3-V LVTTL"))  # User I/O port on Mister
     ),
 
     ("serial", 1,
-        Subsignal("tx", Pins("AF13")),  # Arduino_IO1
-        Subsignal("rx", Pins("AG13")),  # Arduino_IO0
-        IOStandard("3.3-V LVTTL"), Misc("WEAK_PULL_UP_RESISTOR ON"), Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\"")
+        Subsignal("tx", Pins("AF13"), IOStandard("3.3-V LVTTL")),  # Arduino_IO1
+        Subsignal("rx", Pins("AG13"), IOStandard("3.3-V LVTTL"))   # Arduino_IO0
     ),
 
     ("g_sensor", 0,
@@ -57,14 +55,15 @@ _io = [
     ),
 
     ("hdmi", 0,
-        Subsignal("tx_d_r", Pins("AS12 AE12 W8 Y8 AD11 AD10 AE11 Y5"), Misc("FAST_OUTPUT_REGISTER ON")),
-        Subsignal("tx_d_g", Pins("AF10 Y4 AE9 AB4 AE7 AF6 AF8 AF5"), Misc("FAST_OUTPUT_REGISTER ON")),
-        Subsignal("tx_d_b", Pins("AE4 AH2 AH4 AH5 AH6 AG6 AF9 AE8"), Misc("FAST_OUTPUT_REGISTER ON")),
-        Subsignal("tx_clk", Pins("AG5"), Misc("FAST_OUTPUT_REGISTER ON")),
-        Subsignal("tx_de",  Pins("AD19"), Misc("FAST_OUTPUT_REGISTER ON")),
-        Subsignal("tx_hs",  Pins("T8"), Misc("FAST_OUTPUT_REGISTER ON")),
-        Subsignal("tx_vs",  Pins("V13"), Misc("FAST_OUTPUT_REGISTER ON")),
+        Subsignal("tx_d_r", Pins("AS12 AE12 W8 Y8 AD11 AD10 AE11 Y5")),
+        Subsignal("tx_d_g", Pins("AF10 Y4 AE9 AB4 AE7 AF6 AF8 AF5")),
+        Subsignal("tx_d_b", Pins("AE4 AH2 AH4 AH5 AH6 AG6 AF9 AE8")),
+        Subsignal("tx_clk", Pins("AG5")),
+        Subsignal("tx_de",  Pins("AD19")),
+        Subsignal("tx_hs",  Pins("T8")),
+        Subsignal("tx_vs",  Pins("V13")),
         Subsignal("tx_int", Pins("AF11")),
+        Misc("FAST_OUTPUT_REGISTER ON"),
         IOStandard("3.3-V LVTTL")
     ),
 
@@ -92,38 +91,38 @@ _mister_sdram_module_io = [
             "AC22 C12 AB26 AD17 D12")),
         Subsignal("dq",  Pins(
             "E8    V12 D11  W12 AH13  D8 AH14 AF7",
-            "AE24 AD23 AE6 AE23 AG14 AD5  AF4 AH3"),
-            Misc("FAST_OUTPUT_ENABLE_REGISTER ON"), Misc("FAST_INPUT_REGISTER ON")),
+            "AE24 AD23 AE6 AE23 AG14 AD5  AF4 AH3")),
         Subsignal("ba",    Pins("Y17 AB25")),
         Subsignal("cas_n", Pins("AA18")),
         Subsignal("cs_n",  Pins("Y18")),
         Subsignal("ras_n", Pins("W14")),
         Subsignal("we_n",  Pins("AA19")),
-        IOStandard("3.3-V LVTTL"), Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""), Misc("FAST_OUTPUT_REGISTER ON"), Misc("ALLOW_SYNCH_CTRL_USAGE OFF")
+        Misc("FAST_OUTPUT_REGISTER ON"),
+        IOStandard("3.3-V LVTTL"),
     ),
 
     ("spisdcard", 0,
         Subsignal("clk",  Pins("AH26")),
-        Subsignal("mosi", Pins("AF27")),
         Subsignal("cs_n", Pins("AF28")),
-        Subsignal("miso", Pins("AF25")),
-        IOStandard("3.3-V LVTTL"), Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""), Misc("WEAK_PULL_UP_RESISTOR ON")
+        Subsignal("mosi", Pins("AF27"), Misc("WEAK_PULL_UP_RESISTOR ON")),
+        Subsignal("miso", Pins("AF25"), Misc("WEAK_PULL_UP_RESISTOR ON")),
+        IOStandard("3.3-V LVTTL")
     ),
-    
+
     ("sdcard", 0,
         Subsignal("data", Pins("AF25 AF23 AD26 AF28"), Misc("WEAK_PULL_UP_RESISTOR ON")),
         Subsignal("cmd", Pins("AF27"), Misc("WEAK_PULL_UP_RESISTOR ON")),
         Subsignal("clk", Pins("AH26")),
-        Subsignal("cd", Pins("AH7"), Misc("WEAK_PULL_UP_RESISTOR ON")),
-        IOStandard("3.3-V LVTTL"), Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""), 
+        Subsignal("cd", Pins("AH7")),
+        Misc("FAST_OUTPUT_REGISTER ON"),
+        IOStandard("3.3-V LVTTL"),
     ),
 
-
     ("mister_outputs", 0,
         Subsignal("led_user",  Pins("Y15")),
         Subsignal("led_hdd",   Pins("AA15")),
         Subsignal("led_power", Pins("AG28")),
-        IOStandard("3.3-V LVTTL"), Misc("WEAK_PULL_UP_RESISTOR ON"), Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\"")
+        IOStandard("3.3-V LVTTL")
     ),
 
     ("vga", 0,
@@ -132,8 +131,8 @@ _mister_sdram_module_io = [
         Subsignal("blue", Pins("AG21 AA20 AE22 AF22 AH23 AH21")),
         Subsignal("hsync", Pins("AH22")),
         Subsignal("vsync",  Pins("AG24")),
-        Subsignal("en",  Pins("AH27"), Misc("WEAK_PULL_UP_RESISTOR ON")),
-        IOStandard("3.3-V LVTTL"), Misc("CURRENT_STRENGTH_NEW 8MA")
+        Subsignal("en",  Pins("AH27")),
+        IOStandard("3.3-V LVTTL")
     ),
 ]