11558Srgrimes/* SPDX-License-Identifier: GPL-2.0 */ 21558Srgrimes/* 31558Srgrimes * This header provides constants for binding nvidia,tegra186-hsp. 41558Srgrimes */ 51558Srgrimes 61558Srgrimes#ifndef _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H 71558Srgrimes#define _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H 81558Srgrimes 91558Srgrimes/* 101558Srgrimes * These define the type of mailbox that is to be used (doorbell, shared 111558Srgrimes * mailbox, shared semaphore or arbitrated semaphore). 121558Srgrimes */ 131558Srgrimes#define TEGRA_HSP_MBOX_TYPE_DB 0x0 141558Srgrimes#define TEGRA_HSP_MBOX_TYPE_SM 0x1 151558Srgrimes#define TEGRA_HSP_MBOX_TYPE_SS 0x2 161558Srgrimes#define TEGRA_HSP_MBOX_TYPE_AS 0x3 171558Srgrimes 181558Srgrimes/* 191558Srgrimes * These define the types of shared mailbox supported based on data size. 201558Srgrimes */ 211558Srgrimes#define TEGRA_HSP_MBOX_TYPE_SM_128BIT (1 << 8) 221558Srgrimes 231558Srgrimes/* 241558Srgrimes * These defines represent the bit associated with the given master ID in the 251558Srgrimes * doorbell registers. 261558Srgrimes */ 271558Srgrimes#define TEGRA_HSP_DB_MASTER_CCPLEX 17 281558Srgrimes#define TEGRA_HSP_DB_MASTER_BPMP 19 291558Srgrimes 301558Srgrimes/* 311558Srgrimes * Shared mailboxes are unidirectional, so the direction needs to be specified 321558Srgrimes * in the device tree. 331558Srgrimes */ 34114589Sobrien#define TEGRA_HSP_SM_MASK 0x00ffffff 351558Srgrimes#define TEGRA_HSP_SM_FLAG_RX (0 << 31) 3623675Speter#define TEGRA_HSP_SM_FLAG_TX (1 << 31) 37114589Sobrien 3841477Sjulian#define TEGRA_HSP_SM_RX(x) (TEGRA_HSP_SM_FLAG_RX | ((x) & TEGRA_HSP_SM_MASK)) 39114589Sobrien#define TEGRA_HSP_SM_TX(x) (TEGRA_HSP_SM_FLAG_TX | ((x) & TEGRA_HSP_SM_MASK)) 40114589Sobrien 411558Srgrimes#endif 421558Srgrimes