Re: Using GPIO

arch/ppc/syslib/virtex_devices.c:

// 0 is LEDS_4BIT, 1 is LEDS_POSITIONS, 2 is PUSH_BUTTONS_POSITION
#define XPAR_GPIO(num) { \
   .name = "xilinx_gpio", \
   .id = num, \
   .num_resources = 2, \

That was a 2.
If anybody wants to make a patch out of those few lines of code, I couldn't figure out how to do this with git... But I will use a more general GPIO approach as soon as I can put my hands on our custom card.

   .resource = (struct resource[]) { \
       { \
           .start = XPAR_GPIO_##num##_BASEADDR, \
           .end = XPAR_GPIO_##num##_HIGHADDR, \
           .flags = IORESOURCE_MEM, \
       }, \
       { \
           .start = XPAR_INTC_0_GPIO_##num##_VEC_ID, \
           .flags = IORESOURCE_IRQ, \
       }, \
   }, \
}
[...]
     /* GPIO instances */
#if defined(XPAR_GPIO_0_BASEADDR)
     XPAR_GPIO(0),
#endif
#if defined(XPAR_GPIO_1_BASEADDR)
     XPAR_GPIO(1),
#endif
#if defined(XPAR_GPIO_2_BASEADDR)
     XPAR_GPIO(2),
#endif

-- 
Guillaume Dargaud
http://www.gdargaud.net/