Re: [patch] HWUART instead of BTUART on the h5550 (workaround for Bluetooth UART overruns)

On Fri, 2005-03-11 at 11:23 -0800, Erik Hovland wrote:
> So, those in the know. Will you acquiesce to the different irq skip hack
> or would you rather see serial.c fixed before this gets resolved? What
> about the possibility of commenting out BTUART irq at 21 and putting
> HWUART there instead (not sure if there are h/w limitations)? But it
> seems like an obvious way to go since we won't be using BTUART with this
> arrangement.

I would prefer to see serial.c get fixed than change all the irq
numbers, unless the former would be a huge amount of work.

Putting the HWUART at irq 21 would involve gruesome hacks to the pxa255
irqchip code. At the moment, all the irq numbers correspond to bit
positions in the interrupt controller registers (with a constant offset,
which is the PXA_IRQ_SKIP value). Changing the irq number of just one
peripheral would require special-case code.

p.
Received on Fri Mar 11 2005 - 14:38:03 EST