From: Robert Jordens <jordens@gmail.com>
Date: Thu, 4 Jul 2013 07:06:55 +0000 (-0600)
Subject: add initial ztex_115d platform
X-Git-Tag: 24jan2021_ls180~2099^2~400
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bfdc14fbc3a7dce4a5185d5c825fc7c4b0c44658;p=litex.git

add initial ztex_115d platform
---

diff --git a/mibuild/platforms/ztex_115d.py b/mibuild/platforms/ztex_115d.py
new file mode 100644
index 00000000..8889b1d5
--- /dev/null
+++ b/mibuild/platforms/ztex_115d.py
@@ -0,0 +1,112 @@
+from mibuild.generic_platform import *
+from mibuild.xilinx_ise import XilinxISEPlatform, CRG_SE
+
+_io = [
+		("clk_fx", 0, Pins("L22"), IOStandard("LVCMOS33")),
+		("clk_if", 0, Pins("K20"), IOStandard("LVCMOS33")),
+		("rst", 0, Pins("A18")),
+		# PROG_B and DONE: AA1 U16
+
+		("fx2", 0,
+			Subsignal("sloe", Pins("U15"), Drive(12)), # M1
+			Subsignal("slrd", Pins("N22"), Drive(12)),
+			Subsignal("slwr", Pins("M22"), Drive(12)),
+			Subsignal("pktend", Pins("AB5"), Drive(12)), # CSO
+			Subsignal("fifoadr", Pins("W17 Y18"), Drive(12)), # CCLK M0
+			Subsignal("cont", Pins("G20")),
+			Subsignal("fd", Pins("Y17 V13 W13 AA8 AB8 W6 Y6 Y9 "
+				"V21 V22 U20 U22 R20 R22 P18 P19")),
+			Subsignal("flag", Pins("F20 F19 F18 AB17")), # - - - CSI/MOSI
+			Subsignal("rdy25", Pins("M21 K21 K22 J21")),
+			Subsignal("ctl35", Pins("D19 E20 N20")),
+			Subsignal("int45", Pins("C18 V17")),
+			Subsignal("pc", Pins("G20 T10 V5 AB9 G19 H20 H19 H18")),
+			# - DOUT/BUSY INIT_B RDWR_B DO CS CLK DI
+			IOStandard("LVCMOS33")),
+
+		("mm", 0,
+			Subsignal("a", Pins("M20 M19 M18 N19 T19 T21 T22 R19 ",
+						"P20 P21 P22 J22 H21 H22 G22 F21")),
+			Subsignal("d", Pins("D20 C20 C19 B21 B20 J19 K19 L19"), Drive(2)),
+			Subsignal("wr_n", Pins("C22")),
+			Subsignal("rd_n", Pins("D21")),
+			Subsignal("psen_n", Pins("D22")),
+			IOStandard("LVCMOS33")),
+
+		("serial", 0,
+			Subsignal("tx", Pins("B22"), Misc("SLEW=QUIETIO")),
+			Subsignal("rx", Pins("A21"), Misc("PULLDOWN")),
+			IOStandard("LVCMOS33")),
+
+		("ddram_clock", 0,
+			Subsignal("p", Pins("F2"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("n", Pins("F1"), Misc("OUT_TERM=UNTUNED_50")),
+			IOStandard("SSTL18_II")),
+
+		("ddram", 0,
+			Subsignal("dqs", Pins("L3 T2"), IOStandard("SSTL18_II"), # DIFF_
+					Misc("IN_TERM=NONE")),
+			Subsignal("dqs_n", Pins("L1 T1"), IOStandard("SSTL18_II"), # DIFF_
+					Misc("IN_TERM=NONE")),
+			Subsignal("dm", Pins("H1 H2"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("dq", Pins("M1 M2 J1 K2 J3 K1 N3 N1 "
+					"U1 U3 P1 R3 P2 R1 V2 V1"), Misc("IN_TERM=NONE")),
+			Subsignal("ras_n", Pins("N4"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("cas_n", Pins("P3"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("a", Pins("M5 K6 B1 J4 L4 K3 M4 K5 G3 G1 K4 C3 C1"),
+					Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("ba", Pins("E3 E1 D1"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("cke", Pins("J6"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("cs_n", Pins("H6")), # NC!
+			Subsignal("odt", Pins("M3"), Misc("OUT_TERM=UNTUNED_50")),
+			Subsignal("we_n", Pins("D2")),
+			Subsignal("rzq", Pins("AA2")),
+			Subsignal("zio", Pins("Y2")),
+			IOStandard("SSTL18_II")),
+
+		("i2c", 0,
+			Subsignal("scl", Pins("F22")),
+			Subsignal("sda", Pins("E22")),
+			IOStandard("LVCMOS33")),
+
+		("sd", 0,
+			Subsignal("sck", Pins("H11")),
+			Subsignal("d3", Pins("H14")),
+			Subsignal("d", Pins("P10")),
+			Subsignal("d1", Pins("T18")),
+			Subsignal("d2", Pins("R17")),
+			Subsignal("cmd", Pins("H13")),
+			IOStandard("LVCMOS33")),
+
+]
+
+class Platform(XilinxISEPlatform):
+	def __init__(self):
+		XilinxISEPlatform.__init__(self, "xc6slx150-3csg484", _io,
+				lambda p: CRG_SE(p, "clk_if", "rst"))
+		self.add_platform_command("""
+CONFIG VCCAUX = "2.5";
+""")
+
+	def do_finalize(self, fragment):
+		try:
+			self.add_platform_command("""
+NET "{clk_if}" TNM_NET = "GRPclkif";
+TIMESPEC "TSclkif" = PERIOD "GRPclkif" 20 ns HIGH 50%;
+""", clk_if=self.lookup_request("clk_if"))
+		except ConstraintError:
+			pass
+
+		try:
+			clk_if = self.lookup_request("clk_if")
+			clk_fx = self.lookup_request("clk_fx")
+			self.add_platform_command("""
+NET "{clk_if}" TNM_NET = "GRPclk_if";
+NET "{clk_fx}" TNM_NET = "GRPclk_fx";
+TIMESPEC "TSclk_fx" = PERIOD "GRPclk_fx" 20.83333 ns HIGH 50%;
+TIMESPEC "TSclk_if" = PERIOD "GRPclk_if" 20 ns HIGH 50%;
+TIMESPEC "TSclk_fx2if" = FROM "GRPclk_fx" TO "GRPclk_if" 3 ns DATAPATHONLY;
+TIMESPEC "TSclk_if2fx" = FROM "GRPclk_if" TO "GRPclk_fx" 3 ns DATAPATHONLY;
+""", clk_if=clk_if, clk_fx=clk_fx)
+		except ContraintError:
+			pass