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path: root/drivers/mailbox
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* libfdt: Bring in upstream stringlist functionsSimon Glass2016-10-13-3/+3
| | | | | | | | | | | | | | These have now landed upstream. The naming is different and in one case the function signature has changed. Update the code to match. This applies the following upstream commits by Thierry Reding <treding@nvidia.com> : 604e61e fdt: Add functions to retrieve strings 8702bd1 fdt: Add a function to get the index of a string 2218387 fdt: Add a function to count strings Signed-off-by: Simon Glass <sjg@chromium.org>
* ARM: tegra: adapt to latest HSP DT bindingStephen Warren2016-08-04-8/+39
| | | | | | | | | | The DT binding for the Tegra186 HSP module apparently wasn't quite final when I posted initial U-Boot support for it. Add the final DT binding doc and adapt all code and DT files to match it. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* mailbox: add Tegra186 HSP driverStephen Warren2016-06-19-0/+171
| | | | | | | | | | Tegra186's HSP module implements doorbells, mailboxes, semaphores, and shared interrupts. This patch provides a driver for HSP, and hooks it into the mailbox API. Currently, only doorbells are supported. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
* mailbox: rename headersStephen Warren2016-06-19-4/+4
| | | | | | | | Rename mailbox*.h to match the naming convention requested during review of the new reset subsystem. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* mailbox: implement a sandbox testStephen Warren2016-05-26-0/+167
| | | | | | | | | This adds a sandbox mailbox implementation (provider), a test client device, instantiates them both from Sandbox's DT, and adds a DM test that excercises everything. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> # v1
* Add a mailbox driver framework/uclassStephen Warren2016-05-26-0/+163
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>