diff options
| author | Lubomir Rintel <lkundrak@v3.sk> | 2015-05-05 23:27:45 +0300 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2015-06-11 19:49:40 +0300 |
| commit | 0bae6af6d704f026d4938739786e0a69d50177ca (patch) | |
| tree | 7dfa97be22661926c4990cbafc4786f553ac247b /drivers/mailbox/Kconfig | |
| parent | d4b5c782b9f4ef5b3c34cb369989cc2fc68f7391 (diff) | |
| download | linux-0bae6af6d704f026d4938739786e0a69d50177ca.tar.xz | |
mailbox: Enable BCM2835 mailbox support
This mailbox driver provides a single mailbox channel to write 32-bit
values to the VPU and get a 32-bit response. The Raspberry Pi
firmware uses this mailbox channel to implement firmware calls, while
Roku 2 (despite being derived from the same firmware tree) doesn't.
The driver was originally submitted by Lubomir, based on the
out-of-tree 2708 mailbox driver. Eric Anholt fixed it up for
upstreaming, with the major functional change being that it now has no
notion of multiple channels (since that is a firmware-dependent
concept) and instead the raspberrypi-firmware driver will do that
bit-twiddling in its own messages.
[Jassi: made the 'mbox_chan_ops' struct as const and removed a redundant
variable]
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Craig McGeachie <slapdau@yahoo.com.au>
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'drivers/mailbox/Kconfig')
| -rw-r--r-- | drivers/mailbox/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig index 4a418d2f6564..e269f084497d 100644 --- a/drivers/mailbox/Kconfig +++ b/drivers/mailbox/Kconfig @@ -61,4 +61,13 @@ config ALTERA_MBOX An implementation of the Altera Mailbox soft core. It is used to send message between processors. Say Y here if you want to use the Altera mailbox support. + +config BCM2835_MBOX + tristate "BCM2835 Mailbox" + depends on ARCH_BCM2835 + help + An implementation of the BCM2385 Mailbox. It is used to invoke + the services of the Videocore. Say Y here if you want to use the + BCM2835 Mailbox. + endif |