From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- include/dt-bindings/mailbox/tegra186-hsp.h | 41 ++++++++++++++++++++++++++++++ 1 file changed, 41 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 000000000..b9ccae2aa --- /dev/null +++ b/include/dt-bindings/mailbox/tegra186-hsp.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * 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 define the types of shared mailbox supported based on data size. + */ +#define TEGRA_HSP_MBOX_TYPE_SM_128BIT (1 << 8) + +/* + * 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 + +/* + * Shared mailboxes are unidirectional, so the direction needs to be specified + * in the device tree. + */ +#define TEGRA_HSP_SM_MASK 0x00ffffff +#define TEGRA_HSP_SM_FLAG_RX (0 << 31) +#define TEGRA_HSP_SM_FLAG_TX (1 << 31) + +#define TEGRA_HSP_SM_RX(x) (TEGRA_HSP_SM_FLAG_RX | ((x) & TEGRA_HSP_SM_MASK)) +#define TEGRA_HSP_SM_TX(x) (TEGRA_HSP_SM_FLAG_TX | ((x) & TEGRA_HSP_SM_MASK)) + +#endif -- cgit v1.2.3