yair/u-boot-tk1-som
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Add a mailbox driver framework/uclass

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A mailbox is a hardware mechanism for transferring small message and/or
notifications between the CPU on which U-Boot runs and some other device
such as an auxilliary CPU running firmware or a hardware module.

This patch defines a standard API that connects mailbox clients to mailbox
providers (drivers). Initially, DT is the only supported method for
connecting the two.

The DT binding specification (mailbox.txt) was taken from Linux kernel
v4.5's Documentation/devicetree/bindings/mailbox/mailbox.txt.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren
2016-05-13 15:50:29 -06:00
committed by Simon Glass
parent 1163625898
commit 6238935d01
9 changed files with 431 additions and 0 deletions
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drivers/Kconfig
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@@ -30,6 +30,8 @@ source "drivers/input/Kconfig"
source "drivers/led/Kconfig"
source "drivers/mailbox/Kconfig"
source "drivers/memory/Kconfig"
source "drivers/misc/Kconfig"