mailbox: sprd: Add supplementary inbox support
Some sensors connected to Unisoc mailbox will send data very frequently. This makes channel 0 very busy and the messages from other remote cores not able to be handled as soon as possible. It's a trick (un-documented) from Unisoc ASIC designers to resolve this special requirement that an inbox assigned to one of the remote cores before was modified to be exposed to host cpu core. Then from host side, a supplementary inbox is added for transferring mass but not emergency messages from the remote cores, such as step counting sensor, with an independent FIFO and interrupt which is as same as channel 0. Meanwihle, inbox part of this channel is still kept for original remote core to use. Signed-off-by:Orson Zhai <orson.zhai@unisoc.com> Reviewed-by:
Baolin Wang <baolin.wang7@gmail.com> Signed-off-by:
Jassi Brar <jaswinder.singh@linaro.org>
parent
6203b954
Please register or sign in to comment