DM368 中断问题

专家好:        

       现在我们使用FPGA向DM368gio0发出中断信息。但是368总是读不到中断信息。    

       以下是设置，    

       //disable all interrupt    

       davinci_writel(0x0,0x01C48000+0x18);//INTC_EINT0 = 0    

       davinci_writel(0x0,0x01C48000+0x1c);//INTC_EINT1 = 0    

       //interrupt disable immediately    

       davinci_writel(0x0,0x01C48000+0x20);//INTC_INTCTL = 0    

       //set interrupt44 prioritization(FIQ)    

       davinci_writel(0x0,0x01C48000+0x44);//INTC_INTPRI5 = 0    

       //clear interrupt     davinci_writel(0xffffffff,0x01C48000+0x0);//INTC_FIQ0    

       davinci_writel(0xffffffff,0x01C48000+0x4);//INTC_FIQ1    

       davinci_writel(0xffffffff,0x01C48000+0x8);//INTC_IRQ0    

       davinci_writel(0xffffffff,0x01C48000+0xc);//INTC_IRQ1    

       //enablse all interrupt    

       davinci_writel(0xffffffff,0x01C48000+0x18);//INTC_EINT0 = 0    

       davinci_writel(0xffffffff,0x01C48000+0x1c);//INTC_EINT1 = 0

       //read FIQ/IRQ    

       davinci_readl(0x01C48000+0x0);    

       davinci_readl(0x01C48000+0x4);    

       davinci_readl(0x01C48000+0x8);    

       davinci_readl(0x01C48000+0xC);

       结果:      

       INTC_FIQ0:0xffffffff    

       INTC_FIQ1:0xffffffff    

       INTC_IRQ0:0xffffffff    

       INTC_IRQ1:0xffffffff

       请专家分析下，谢谢！

kooking：

没有看到pinmux的相关设置，是不是要先设置pinmux