[memutil] Increase max memory width to 256bit
- Required for OTBN memories
- Fixes #2504
Signed-off-by: Tom Roberts <tomroberts@lowrisc.org>
diff --git a/hw/dv/verilator/cpp/verilator_memutil.cc b/hw/dv/verilator/cpp/verilator_memutil.cc
index 6a22045..ba56351 100644
--- a/hw/dv/verilator/cpp/verilator_memutil.cc
+++ b/hw/dv/verilator/cpp/verilator_memutil.cc
@@ -45,8 +45,8 @@
size_t width_bit) {
MemArea mem = {.name = name, .location = location, .width_bit = width_bit};
- assert((width_bit <= 128) &&
- "TODO: Memory loading only supported up to 128 bits.");
+ assert((width_bit <= 256) &&
+ "TODO: Memory loading only supported up to 256 bits.");
auto ret = mem_register_.emplace(name, mem);
if (ret.second == false) {
diff --git a/hw/ip/prim/rtl/prim_util_memload.sv b/hw/ip/prim/rtl/prim_util_memload.sv
index 4392f0a..3b964fc 100644
--- a/hw/ip/prim/rtl/prim_util_memload.sv
+++ b/hw/ip/prim/rtl/prim_util_memload.sv
@@ -30,10 +30,10 @@
export "DPI-C" function simutil_verilator_set_mem;
function int simutil_verilator_set_mem(input int index,
- input bit [127:0] val);
+ input bit [255:0] val);
- // Function will only work for memories <= 128 bits
- if (Width > 128) begin
+ // Function will only work for memories <= 256 bits
+ if (Width > 256) begin
return 0;
end
