rtl/gfx/firmware: implement bootloader

1 files changed, 28 insertions, 8 deletions

diff --git a/rtl/gfx/gfx_xbar_sched.sv b/rtl/gfx/gfx_xbar_sched.sv
index 5661012..32305cd 100644
--- a/rtl/gfx/gfx_xbar_sched.sv
+++ b/rtl/gfx/gfx_xbar_sched.sv
@@ -7,28 +7,34 @@ import gfx::*;
 	       if_axil.s sched,
 
 	       if_axil.m debug,
-	       if_axil.m bootrom,
-	       if_axil.m shader_0
+	                 bootrom,
+	                 shader_0,
+	                 host_ctrl
 );
 
-	localparam word BOOTROM_MASK  = 32'hfff0_0000;
-	localparam word DEBUG_BASE    = 32'h0020_0000;
-	localparam word DEBUG_MASK    = 32'hfff0_0000;
-	localparam word SHADER_0_BASE = 32'h0100_0000;
-	localparam word SHADER_0_MASK = 32'hfff0_0000;
+	localparam word
+		BOOTROM_MASK   = 32'hfff0_0000,
+		DEBUG_BASE     = 32'h0020_0000,
+		DEBUG_MASK     = 32'hfff0_0000,
+		HOST_CTRL_BASE = 32'h0030_0000,
+		HOST_CTRL_MASK = 32'hfff0_0000,
+		SHADER_0_BASE  = 32'h0100_0000,
+		SHADER_0_MASK  = 32'hfff0_0000;
 
 	defparam xbar.NM = 1; 
-	defparam xbar.NS = 3;
+	defparam xbar.NS = 4;
 	defparam xbar.OPT_LOWPOWER = 0; 
 
 	defparam xbar.SLAVE_ADDR = {
 		SHADER_0_BASE,
+		HOST_CTRL_BASE,
 		DEBUG_BASE,
 		BOOTROM_BASE
 	};
 
 	defparam xbar.SLAVE_MASK = {
 		SHADER_0_MASK,
+		HOST_CTRL_MASK,
 		DEBUG_MASK,
 		BOOTROM_MASK
 	};
@@ -64,34 +70,40 @@ import gfx::*;
 
 		.M_AXI_AWADDR({
 			shader_0.awaddr,
+			host_ctrl.awaddr,
 			debug.awaddr,
 			bootrom.awaddr
 		}),
 		.M_AXI_AWPROT(),
 		.M_AXI_AWVALID({
 			shader_0.awvalid,
+			host_ctrl.awvalid,
 			debug.awvalid,
 			bootrom.awvalid
 		}),
 		.M_AXI_AWREADY({
 			shader_0.awready,
+			host_ctrl.awready,
 			debug.awready,
 			bootrom.awready
 		}),
 
 		.M_AXI_WDATA({
 			shader_0.wdata,
+			host_ctrl.wdata,
 			debug.wdata,
 			bootrom.wdata
 		}),
 		.M_AXI_WSTRB(),
 		.M_AXI_WVALID({
 			shader_0.wvalid,
+			host_ctrl.wvalid,
 			debug.wvalid,
 			bootrom.wvalid
 		}),
 		.M_AXI_WREADY({
 			shader_0.wready,
+			host_ctrl.wready,
 			debug.wready,
 			bootrom.wready
 		}),
@@ -99,45 +111,53 @@ import gfx::*;
 		.M_AXI_BRESP('0),
 		.M_AXI_BVALID({
 			shader_0.bvalid,
+			host_ctrl.bvalid,
 			debug.bvalid,
 			bootrom.bvalid
 		}),
 		.M_AXI_BREADY({
 			shader_0.bready,
+			host_ctrl.bready,
 			debug.bready,
 			bootrom.bready
 		}),
 
 		.M_AXI_ARADDR({
 			shader_0.araddr,
+			host_ctrl.araddr,
 			debug.araddr,
 			bootrom.araddr
 		}),
 		.M_AXI_ARPROT(),
 		.M_AXI_ARVALID({
 			shader_0.arvalid,
+			host_ctrl.arvalid,
 			debug.arvalid,
 			bootrom.arvalid
 		}),
 		.M_AXI_ARREADY({
 			shader_0.arready,
+			host_ctrl.arready,
 			debug.arready,
 			bootrom.arready
 		}),
 
 		.M_AXI_RDATA({
 			shader_0.rdata,
+			host_ctrl.rdata,
 			debug.rdata,
 			bootrom.rdata
 		}),
 		.M_AXI_RRESP('0),
 		.M_AXI_RVALID({
 			shader_0.rvalid,
+			host_ctrl.rvalid,
 			debug.rvalid,
 			bootrom.rvalid
 		}),
 		.M_AXI_RREADY({
 			shader_0.rready,
+			host_ctrl.rready,
 			debug.rready,
 			bootrom.rready
 		})