Re: [Qemu-devel] [PATCH] pl011: reset the fifo when enabled or disabled

2014-03-04 Thread Rob Herring
On Sun, Mar 2, 2014 at 2:20 PM, Peter Maydell wrote: > On 28 February 2014 00:57, Rob Herring wrote: >> From: Rob Herring >> >> Intermittent issues have been seen where no serial input occurs. It >> appears the pl011 gets in a state where the rx interrupt never fires >> because the rx interrupt

Re: [Qemu-devel] [PATCH] pl011: reset the fifo when enabled or disabled

2014-03-02 Thread Peter Maydell
On 28 February 2014 00:57, Rob Herring wrote: > From: Rob Herring > > Intermittent issues have been seen where no serial input occurs. It > appears the pl011 gets in a state where the rx interrupt never fires > because the rx interrupt only asserts when crossing the fifo trigger > level. The fifo

[Qemu-devel] [PATCH] pl011: reset the fifo when enabled or disabled

2014-02-27 Thread Rob Herring
From: Rob Herring Intermittent issues have been seen where no serial input occurs. It appears the pl011 gets in a state where the rx interrupt never fires because the rx interrupt only asserts when crossing the fifo trigger level. The fifo state appears to get out of sync when the pl011 is re-con