ZYNQ linux笔记 --- Linux UIO框架下调用HLS ip核_linux调用hls ip

目标

编写了 HLS IP核，实现对图像的缩放，已通过HLS 仿真验证和裸机验证，想在Linux端调用该IP

工程构建

简单描述一下，vdma出来连接 resize ip核，resize ip核后面接 vid_out ip
resize ip核的 interrput 接口通过 xlconcat ip 连接到PS端中断接口IRQ，这一点很重要！

导出xsa文件，开始构建Linux

修改设备树和内核

修改设备树

生成的 pl.dtsi 部分内容如下

	amba_pl: amba_pl {
   
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "simple-bus";
		ranges ;
		axi4_resize_0: axi4_resize@40000000 {
   
			/* This is a place holder node for a custom IP, user may need to update the entries */
			clock-names = "ap_clk";
			clocks = <&clkc 16>;
			compatible = "xlnx,axi4-resize-1.0";
			interrupt-names = "interrupt";
			interrupt-parent = <&intc>;
			interrupts = <0 31 4>;
			reg = <0x40000000 0x10000>;
			xlnx,s-axi-control-addr-width = <0x
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16