Hello, I'm getting the kernel log messages early in the bootup sequence (kernel 3.6.1 mainline) [ 0.121337] GPMC revision 5.0 [ 0.121582] gpmc: irq-20 could not claim: err -22 this is on beagleboard, which is calling omap_nand_flash_init(), so no omap_nand_platform_data specified in board file NAND still works since it is operated in NAND_OMAP_PREFETCH_POLLED mode; however, I'd like to try NAND_OMAP_PREFETCH_IRQ to see if it brings any performance gains just passing NAND_OMAP_PREFETCH_IRQ via gmpc_nand_init() hangs the kernel (I guess since the request_irq() failed earlier) another question is dev_ready which also seems to depend on IRQ also can you make any recommendation w.r.t NAND performance on OMAP? thanks, regards, p. -- Peter Meerwald +43-664-2444418 (mobile) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html