Re: ATH9 driver issues on ARM64

Marc Zyngier
2016-12-08T18:07:10Z

On 08/12/16 15:29, Bharat Kumar Gogada wrote:

Two things:

> Here is the cat /proc/interrupts (after we do interface up):
>
> root@:~# ifconfig wlan0 up
> [ 1548.926601] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
> root@Xilinx-ZCU102-2016_3:~# cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> 1: 0 0 0 0 GICv2 29 Edge arch_timer
> 2: 19873 20058 19089 17435 GICv2 30 Edge arch_timer
> 12: 0 0 0 0 GICv2 156 Level zynqmp-dma
> 13: 0 0 0 0 GICv2 157 Level zynqmp-dma
> 14: 0 0 0 0 GICv2 158 Level zynqmp-dma
> 15: 0 0 0 0 GICv2 159 Level zynqmp-dma
> 16: 0 0 0 0 GICv2 160 Level zynqmp-dma
> 17: 0 0 0 0 GICv2 161 Level zynqmp-dma
> 18: 0 0 0 0 GICv2 162 Level zynqmp-dma
> 19: 0 0 0 0 GICv2 163 Level zynqmp-dma
> 20: 0 0 0 0 GICv2 164 Level Mali_GP_MMU, Mali_GP, Mali_PP0_MMU, Mali_PP0, Mali_PP1_MMU, Mali_PP1

I'm not even going to consider looking at something that is running out
of tree code. So please start things with a fresh kernel that doesn't
contain stuff we can't debug.

> 30: 0 0 0 0 GICv2 95 Level eth0, eth0
> 206: 314 0 0 0 GICv2 49 Level cdns-i2c
> 207: 40 0 0 0 GICv2 50 Level cdns-i2c
> 209: 0 0 0 0 GICv2 150 Level nwl_pcie:misc
> 214: 12 0 0 0 GICv2 47 Level ff0f0000.spi
> 215: 0 0 0 0 GICv2 58 Level ffa60000.rtc
> 216: 0 0 0 0 GICv2 59 Level ffa60000.rtc
> 217: 0 0 0 0 GICv2 165 Level ahci-ceva[fd0c0000.ahci]
> 218: 61 0 0 0 GICv2 81 Level mmc0
> 219: 0 0 0 0 GICv2 187 Level arm-smmu global fault
> 220: 471 0 0 0 GICv2 53 Level xuartps
> 223: 0 0 0 0 GICv2 154 Level fd4c0000.dma
> 224: 3 0 0 0 dummy 1 Edge ath9k

What is this "dummy" controller? And if that's supposed to be a legacy
interrupt from the PCI device, it has the wrong trigger.

Thanks,

M.
--
Jazz is not dead. It just smells funny...