Reorganize resource taxonomy.

The current hierarchy isn't particularly well suited to resources
like SDRAM or NOR flash, so make it much less fine-grained but easier
to use and less nitpicky.

1 files changed, 0 insertions, 20 deletions

diff --git a/nmigen_boards/dev/sram.py b/nmigen_boards/dev/sram.py
deleted file mode 100644
index 14e31ce..0000000
--- a/nmigen_boards/dev/sram.py
+++ /dev/null
@@ -1,20 +0,0 @@
-from nmigen.build import *
-
-
-__all__ = ["SRAMResource"]
-
-
-def SRAMResource(*args, cs, oe=None, we, a, d, dm=None, attrs=None):
-    io = []
-    io.append(Subsignal("cs", PinsN(cs, dir="o", assert_width=1)))
-    if oe is not None:
-        # Asserted WE# deactivates the D output buffers, so WE# can be used to replace OE#.
-        io.append(Subsignal("oe", PinsN(oe, dir="o", assert_width=1)))
-    io.append(Subsignal("we", PinsN(we, dir="o", assert_width=1)))
-    io.append(Subsignal("a", Pins(a, dir="o")))
-    io.append(Subsignal("d", Pins(d, dir="io")))
-    if dm is not None:
-        io.append(Subsignal("dm", PinsN(dm, dir="o"))) # dm="LB# UB#"
-    if attrs is not None:
-        io.append(attrs)
-    return Resource.family(*args, default_name="sram", ios=io)