hello, I am writing a little test. I put all my RT things in a module : one ISR and one RT task. in init_module I call :
drv->data.regs = ioremap(0x04000000, 64*1024*1024); drv->data.gpio = ioremap(0x40E00000, 64*1024*1024); this is to acces registers rthal_irq_request(8, my_rt_isr, NULL, &(drv->data)); rthal_irq_enable(8); for the ISR in my interrupt routine I use : writel(1, data->gpio + 0x48); for hardware interrupt acknowledge but when my interrupt routine is called linux is freezing so i think that I am never going out of the ISR (I am 99.9% sure). I am not sure but I think that It is due to the hardware interrupt aknoledge... my question is : can I call "writel(1, data->gpio + 0x48);" in my ISR? is it good or not? is there an other way to access registers? thanks for your answers. PS firstly I was calling : "GEDR0 = 0x1;" but in RT task this macro doesn't work
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