1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 2 /* 3 * This header provides constants for binding 3 * This header provides constants for binding nvidia,tegra186-hsp. 4 */ 4 */ 5 5 6 #ifndef _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H 6 #ifndef _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H 7 #define _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H 7 #define _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H 8 8 9 /* 9 /* 10 * These define the type of mailbox that is to 10 * These define the type of mailbox that is to be used (doorbell, shared 11 * mailbox, shared semaphore or arbitrated sem 11 * mailbox, shared semaphore or arbitrated semaphore). 12 */ 12 */ 13 #define TEGRA_HSP_MBOX_TYPE_DB 0x0 13 #define TEGRA_HSP_MBOX_TYPE_DB 0x0 14 #define TEGRA_HSP_MBOX_TYPE_SM 0x1 14 #define TEGRA_HSP_MBOX_TYPE_SM 0x1 15 #define TEGRA_HSP_MBOX_TYPE_SS 0x2 15 #define TEGRA_HSP_MBOX_TYPE_SS 0x2 16 #define TEGRA_HSP_MBOX_TYPE_AS 0x3 16 #define TEGRA_HSP_MBOX_TYPE_AS 0x3 17 17 18 /* 18 /* 19 * These define the types of shared mailbox su << 20 */ << 21 #define TEGRA_HSP_MBOX_TYPE_SM_128BIT (1 << 8) << 22 << 23 /* << 24 * These defines represent the bit associated 19 * These defines represent the bit associated with the given master ID in the 25 * doorbell registers. 20 * doorbell registers. 26 */ 21 */ 27 #define TEGRA_HSP_DB_MASTER_CCPLEX 17 22 #define TEGRA_HSP_DB_MASTER_CCPLEX 17 28 #define TEGRA_HSP_DB_MASTER_BPMP 19 23 #define TEGRA_HSP_DB_MASTER_BPMP 19 29 24 30 /* 25 /* 31 * Shared mailboxes are unidirectional, so the 26 * Shared mailboxes are unidirectional, so the direction needs to be specified 32 * in the device tree. 27 * in the device tree. 33 */ 28 */ 34 #define TEGRA_HSP_SM_MASK 0x00ffffff 29 #define TEGRA_HSP_SM_MASK 0x00ffffff 35 #define TEGRA_HSP_SM_FLAG_RX (0 << 31) 30 #define TEGRA_HSP_SM_FLAG_RX (0 << 31) 36 #define TEGRA_HSP_SM_FLAG_TX (1 << 31) 31 #define TEGRA_HSP_SM_FLAG_TX (1 << 31) 37 32 38 #define TEGRA_HSP_SM_RX(x) (TEGRA_HSP_SM_FLAG_ 33 #define TEGRA_HSP_SM_RX(x) (TEGRA_HSP_SM_FLAG_RX | ((x) & TEGRA_HSP_SM_MASK)) 39 #define TEGRA_HSP_SM_TX(x) (TEGRA_HSP_SM_FLAG_ 34 #define TEGRA_HSP_SM_TX(x) (TEGRA_HSP_SM_FLAG_TX | ((x) & TEGRA_HSP_SM_MASK)) 40 35 41 #endif 36 #endif 42 37
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