From e983940270f10fe8551baf0098be76ea478294a3 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Tue, 5 Jul 2016 17:04:22 +0800 Subject: 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 Acked-by: Stephen Warren Acked-by: Rob Herring Acked-by: Jon Hunter Signed-off-by: Thierry Reding --- include/dt-bindings/mailbox/tegra186-hsp.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 include/dt-bindings/mailbox/tegra186-hsp.h (limited to 'include/dt-bindings/mailbox/tegra186-hsp.h') 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 -- cgit v1.2.3-59-g8ed1b