kernel.git/drivers/mailbox/mailbox-altera.c, branch linux-4.0.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-4.0.y2015-02-06T05:28:27Zmailbox: Add Altera mailbox driver2015-02-06T05:28:27ZLey Foon Tan2015-02-04T08:32:18Zurn:sha1:f62092f6d77dfd9214ae753a24b76ba4ecd801d7
The Altera mailbox allows for interprocessor communication. It supports
only one channel and work as either sender or receiver.
Signed-off-by: Ley Foon Tan <lftan@altera.com>