On Thu, 2015-03-19 at 18:14 +0000, Mark Rutland wrote:
On Thu, Mar 19, 2015 at 04:45:48PM +0000, York Sun wrote:
From: Scott Wood scottwood@freescale.com
This lets us see the problems (close to) when they happen, rather than Linux hanging when it enables them prior to having a working console.
FYI, if the Linux driver for your UART supports earlycon, that should work since commit 7a9c43bed891d1f8 ("setup: Move unmask of async interrupts after possible earlycon setup").
I wrote this patch in the context of board bringup, where I was stuck using an older kernel. In any case, when U-Boot causes a problem we want to see it in U-Boot.
I hope that SError is masked again prior to entering Linux, as required by the boot protocol?
Doesn't look like it based on grepping for daifset.
Where is the boot protocol documented? Just for future reference -- I agree that leaving this enabled during the handover would be a bad thing.
Mark.
Signed-off-by: Scott Wood scottwood@freescale.com
York, where's your signoff since you're the one submitting the patch?
-Scott