On 13 May 2016 at 15:50, Stephen Warren <[email protected]> wrote: > From: Stephen Warren <[email protected]> > > 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 <[email protected]> > --- > v2: > * Use timer_get_us() rather than get_ticks() and conversion code. > * Explicitly mention that mailbox messages are fixed size. > * Spell out IPC. > * Fix typos. > > I'll send a sandbox test for this as a separate patch. > > doc/device-tree-bindings/mailbox/mailbox.txt | 32 ++++++ > drivers/Kconfig | 2 + > drivers/Makefile | 1 + > drivers/mailbox/Kconfig | 13 +++ > drivers/mailbox/Makefile | 5 + > drivers/mailbox/mailbox-uclass.c | 145 ++++++++++++++++++++++++++ > include/dm/uclass-id.h | 1 + > include/mailbox_client.h | 149 > +++++++++++++++++++++++++++ > include/mailbox_uclass.h | 83 +++++++++++++++ > 9 files changed, 431 insertions(+) > create mode 100644 doc/device-tree-bindings/mailbox/mailbox.txt > create mode 100644 drivers/mailbox/Kconfig > create mode 100644 drivers/mailbox/Makefile > create mode 100644 drivers/mailbox/mailbox-uclass.c > create mode 100644 include/mailbox_client.h > create mode 100644 include/mailbox_uclass.h
Acked-by: Simon Glass <[email protected]> _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
