[U-Boot] [PATCH] ARM: bcm283x mbox: Fix send status register

[Stephen Warren]

On 7/16/19 5:09 AM, matthias.bgg at kernel.org wrote:
> From: Fabian Vogt <fvogt at suse.com>
> 
> Before we can send a message to the mailbox we have to check that there
> is space to do so. Therefore we poll the status register. But up to now
> the wrong status register, the one of mailbox 0, was checked. Fix this
> by polling the status regiser of mailbox 1.

This sounds plausible at least (I didn't check which of mbox 0/1 was 
TX/RX), so,
Acked-by: Stephen Warren <swarren at wwwdotorg.org>