xilinx-gpio 41200000.gpio: Input clock not found不識別AXI-GPIO問題

芯片爲zynq7010

將zynq的linux系統 linux-xlnx-xilinx-v2016.4 更新到 linux-xlnx-xlnx_rebase_v4.14  時，啓動系統，出現了以下錯誤

xilinx-gpio 41200000.gpio: Input clock not found
xilinx-gpio: probe of 41200000.gpio failed with error -2
xilinx-gpio 41210000.gpio: Input clock not found
xilinx-gpio: probe of 41210000.gpio failed with error -2

查看發現了一個帖子，發現設備樹需要添加上時鐘   clocks = <&clkc 15>;

帖子鏈接如下：

https://forums.xilinx.com/t5/7-Series-FPGAs/axi-gpio-broken-in-Petalinux-2018-1/td-p/886206

 

修改後發現還是不行，同樣提示錯誤，後發現還需添加     clock-names = "s_axi_aclk";    具體如下：

axi_gpio_0: gpio@41200000 {
			#gpio-cells = <2>;
			#interrupt-cells = <2>;
			clock-names = "s_axi_aclk";
			clocks = <&clkc 15>;
			compatible = "xlnx,xps-gpio-1.00.a";
			gpio-controller ;
			interrupt-controller ;
			interrupt-parent = <&intc>;
			interrupts = <0 29 4>;
			reg = <0x41200000 0x10000>;
			xlnx,all-inputs = <0x1>;
			xlnx,all-inputs-2 = <0x0>;
			xlnx,all-outputs = <0x0>;
			xlnx,all-outputs-2 = <0x0>;
			xlnx,dout-default = <0x00000000>;
			xlnx,dout-default-2 = <0x00000000>;
			xlnx,gpio-width = <0x2>;
			xlnx,gpio2-width = <0x1>;
			xlnx,interrupt-present = <0x1>;
			xlnx,is-dual = <0x0>;
			xlnx,tri-default = <0xFFFFFFFF>;
			xlnx,tri-default-2 = <0xFFFFFFFF>;
		};

更新完成後，還發現一個問題，系統打印如下：

XGpio: /amba_pl/gpio@41200000: registered, base is 1022
XGpio: /amba_pl/gpio@41210000: registered, base is 1021

AXI-GPIO識別號從原來的904、903變成了1022、1021