| /* |
| * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef INTF_H |
| #define INTF_H |
| |
| /** |
| * Flags used in IPC req |
| */ |
| #define FLAG_DO_ACK (U(1) << 0) |
| #define FLAG_RING_DOORBELL (U(1) << 1) |
| |
| /* Bit 1 is designated for CCPlex in secure world */ |
| #define HSP_MASTER_CCPLEX_BIT (U(1) << 1) |
| /* Bit 19 is designated for BPMP in non-secure world */ |
| #define HSP_MASTER_BPMP_BIT (U(1) << 19) |
| /* Timeout to receive response from BPMP is 1 sec */ |
| #define TIMEOUT_RESPONSE_FROM_BPMP_US U(1000000) /* in microseconds */ |
| |
| /** |
| * IVC protocol defines and command/response frame |
| */ |
| |
| /** |
| * IVC specific defines |
| */ |
| #define IVC_CMD_SZ_BYTES U(128) |
| #define IVC_DATA_SZ_BYTES U(120) |
| |
| /** |
| * Holds frame data for an IPC request |
| */ |
| struct frame_data { |
| /* Identification as to what kind of data is being transmitted */ |
| uint32_t mrq; |
| |
| /* Flags for slave as to how to respond back */ |
| uint32_t flags; |
| |
| /* Actual data being sent */ |
| uint8_t data[IVC_DATA_SZ_BYTES]; |
| }; |
| |
| /** |
| * Commands send to the BPMP firmware |
| */ |
| |
| /** |
| * MRQ code to issue a module reset command to BPMP |
| */ |
| #define MRQ_RESET U(20) |
| |
| /** |
| * Reset sub-commands |
| */ |
| #define CMD_RESET_ASSERT U(1) |
| #define CMD_RESET_DEASSERT U(2) |
| #define CMD_RESET_MODULE U(3) |
| |
| /** |
| * Used by the sender of an #MRQ_RESET message to request BPMP to |
| * assert or deassert a given reset line. |
| */ |
| struct __attribute__((packed)) mrq_reset_request { |
| /* reset action to perform (mrq_reset_commands) */ |
| uint32_t cmd; |
| /* id of the reset to affected */ |
| uint32_t reset_id; |
| }; |
| |
| #endif /* INTF_H */ |