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| author | Joseph Lo <josephl@nvidia.com> | 2016-07-05 12:04:22 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-11-15 17:52:58 +0300 |
| commit | e983940270f10fe8551baf0098be76ea478294a3 (patch) | |
| tree | 4faddf10c6ee4dac5e7f6ca425fd3bc8927faf76 /include/dt-bindings/mailbox | |
| parent | 15326c1ad8b357fe8684a1d00c094b4f985c1808 (diff) | |
| download | linux-e983940270f10fe8551baf0098be76ea478294a3.tar.xz | |
dt-bindings: mailbox: Add Tegra HSP binding
Add DT binding for the Hardware Synchronization Primitives (HSP). The
HSP is designed for the processors to share resources and communicate
with one another. A set of hardware synchronization primitives for
interprocessor communication (IPC) is provided. IPC protocols can use
use these hardware synchronization primitives when operating between
processors in an AMP configuration.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/dt-bindings/mailbox')
| -rw-r--r-- | include/dt-bindings/mailbox/tegra186-hsp.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/dt-bindings/mailbox/tegra186-hsp.h b/include/dt-bindings/mailbox/tegra186-hsp.h new file mode 100644 index 000000000000..f5d66e5f5f10 --- /dev/null +++ b/include/dt-bindings/mailbox/tegra186-hsp.h @@ -0,0 +1,24 @@ +/* + * This header provides constants for binding nvidia,tegra186-hsp. + */ + +#ifndef _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H +#define _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H + +/* + * These define the type of mailbox that is to be used (doorbell, shared + * mailbox, shared semaphore or arbitrated semaphore). + */ +#define TEGRA_HSP_MBOX_TYPE_DB 0x0 +#define TEGRA_HSP_MBOX_TYPE_SM 0x1 +#define TEGRA_HSP_MBOX_TYPE_SS 0x2 +#define TEGRA_HSP_MBOX_TYPE_AS 0x3 + +/* + * These defines represent the bit associated with the given master ID in the + * doorbell registers. + */ +#define TEGRA_HSP_DB_MASTER_CCPLEX 17 +#define TEGRA_HSP_DB_MASTER_BPMP 19 + +#endif |