流程
修改方法:
根据设备节点的compatible属性,
在驱动程序中构造/注册 platform_driver,
在 platform_driver 的 probe 函数中获得中断资源
1.给dm9000网卡指定中断
/*bank4*/
srom-cs4@20000000 {compatible = "simple-bus";#address-cells = <1>;#size-cells = <1>;reg = <0x20000000 0x8000000>;//起始地址 128Mranges;ethernet@20000000 {compatible = "davicom,dm9000";reg = <0x20000000 0x2 0x20000004 0x2>;interrupt-parent = <&gpf>;interrupts = <7 IRQ_TYPE_EDGE_RISING>;local-mac-address = [00 00 de ad be ef];davicom,no-eeprom;};};
仿照设备树–按键中断程序，在原驱动程序中添加
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>static int dm9000drv_probe(struct platform_device *pdev)
{struct device *dev = &pdev