platform/wavelet3d: implement sched domain crossbar

1 files changed, 127 insertions, 0 deletions

diff --git a/platform/wavelet3d/gfx_xbar_sched.sv b/platform/wavelet3d/gfx_xbar_sched.sv
new file mode 100644
index 0000000..f2bd9f9
--- /dev/null
+++ b/platform/wavelet3d/gfx_xbar_sched.sv
@@ -0,0 +1,127 @@
+module gfx_xbar_sched
+import gfx::*;
+(
+	input  logic      clk,
+	                  srst_n,
+
+	       gfx_axil.s sched,
+	       gfx_axil.m bootrom,
+	       gfx_axil.m shader_0
+);
+
+	localparam word BOOTROM_BASE  = 32'h0008_0000;
+	localparam word BOOTROM_MASK  = 32'hfff8_0000;
+	localparam word SHADER_0_BASE = 32'h0010_0000;
+	localparam word SHADER_0_MASK = 32'hfff0_0000;
+
+	defparam xbar.NM = 1; 
+	defparam xbar.NS = 2; 
+	defparam xbar.OPT_LOWPOWER = 0; 
+
+	defparam xbar.SLAVE_ADDR = {
+		SHADER_0_BASE,
+		BOOTROM_BASE
+	};
+
+	defparam xbar.SLAVE_MASK = {
+		SHADER_0_MASK,
+		BOOTROM_MASK
+	};
+
+	axilxbar xbar
+	(
+		.S_AXI_ACLK(clk),
+		.S_AXI_ARESETN(srst_n),
+
+		.S_AXI_AWVALID(sched.awvalid),
+		.S_AXI_AWREADY(sched.awready),
+		.S_AXI_AWADDR(sched.awaddr),
+		.S_AXI_AWPROT('0),
+
+		.S_AXI_WVALID(sched.wvalid),
+		.S_AXI_WREADY(sched.wready),
+		.S_AXI_WDATA(sched.wdata),
+		.S_AXI_WSTRB('1),
+
+		.S_AXI_BVALID(sched.bvalid),
+		.S_AXI_BREADY(sched.bready),
+		.S_AXI_BRESP(),
+
+		.S_AXI_ARVALID(sched.arvalid),
+		.S_AXI_ARREADY(sched.arready),
+		.S_AXI_ARADDR(sched.araddr),
+		.S_AXI_ARPROT('0),
+
+		.S_AXI_RVALID(sched.rvalid),
+		.S_AXI_RREADY(sched.rready),
+		.S_AXI_RDATA(sched.rdata),
+		.S_AXI_RRESP(),
+
+		.M_AXI_AWADDR({
+			shader_0.awaddr,
+			bootrom.awaddr
+		}),
+		.M_AXI_AWPROT(),
+		.M_AXI_AWVALID({
+			shader_0.awvalid,
+			bootrom.awvalid
+		}),
+		.M_AXI_AWREADY({
+			shader_0.awready,
+			bootrom.awready
+		}),
+
+		.M_AXI_WDATA({
+			shader_0.wdata,
+			bootrom.wdata
+		}),
+		.M_AXI_WSTRB(),
+		.M_AXI_WVALID({
+			shader_0.wvalid,
+			bootrom.wvalid
+		}),
+		.M_AXI_WREADY({
+			shader_0.wready,
+			bootrom.wready
+		}),
+
+		.M_AXI_BRESP('0),
+		.M_AXI_BVALID({
+			shader_0.bvalid,
+			bootrom.bvalid
+		}),
+		.M_AXI_BREADY({
+			shader_0.bready,
+			bootrom.bready
+		}),
+
+		.M_AXI_ARADDR({
+			shader_0.araddr,
+			bootrom.araddr
+		}),
+		.M_AXI_ARPROT(),
+		.M_AXI_ARVALID({
+			shader_0.arvalid,
+			bootrom.arvalid
+		}),
+		.M_AXI_ARREADY({
+			shader_0.arready,
+			bootrom.arready
+		}),
+
+		.M_AXI_RDATA({
+			shader_0.rdata,
+			bootrom.rdata
+		}),
+		.M_AXI_RRESP('0),
+		.M_AXI_RVALID({
+			shader_0.rvalid,
+			bootrom.rvalid
+		}),
+		.M_AXI_RREADY({
+			shader_0.rready,
+			bootrom.rready
+		})
+	);
+
+endmodule