omap3 gpmc: irq-20 could not claim: err -2

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux