Re: Tegra freezes when touching ungated MMIO regions

2016-12-01 Thread Mikko Perttunen
On 12/01/2016 06:47 PM, Ralf Ramsauer wrote: Hi Stephen, On 12/01/2016 05:04 PM, Stephen Warren wrote: On 12/01/2016 07:15 AM, Ralf Ramsauer wrote: Hi, I observed that touching MMIO regions of Tegra devices with its corresponding clock gate deactivated immediately freezes the whole system. No

Re: Tegra freezes when touching ungated MMIO regions

2016-12-01 Thread Ralf Ramsauer
Hi Stephen, On 12/01/2016 05:04 PM, Stephen Warren wrote: > On 12/01/2016 07:15 AM, Ralf Ramsauer wrote: >> Hi, >> >> I observed that touching MMIO regions of Tegra devices with its >> corresponding clock gate deactivated immediately freezes the whole >> system. No kernel panic, nothing. >> >> I t

Re: Tegra freezes when touching ungated MMIO regions

2016-12-01 Thread Stephen Warren
On 12/01/2016 07:15 AM, Ralf Ramsauer wrote: Hi, I observed that touching MMIO regions of Tegra devices with its corresponding clock gate deactivated immediately freezes the whole system. No kernel panic, nothing. I tested this behavior with a small kernel module, find it attached. A few second

Tegra freezes when touching ungated MMIO regions

2016-12-01 Thread Ralf Ramsauer
Hi, I observed that touching MMIO regions of Tegra devices with its corresponding clock gate deactivated immediately freezes the whole system. No kernel panic, nothing. I tested this behavior with a small kernel module, find it attached. A few seconds after loading this module, the whole device f