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dt-bindings: mailbox: Add Tegra HSP binding

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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 <[email protected]>
Acked-by: Stephen Warren <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Jon Hunter <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
This commit is contained in:
Joseph Lo 2016-07-05 17:04:22 +08:00 • committed by Thierry Reding
commit e983940270
2 changed files with 76 additions and 0 deletions
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24
include/dt-bindings/mailbox/tegra186-hsp.h Normal file
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/*
* 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