| /* SPDX-License-Identifier: BSD-2-Clause */ |
| /* |
| * Copyright (c) 2016, Wind River System |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef PLATFORM_SMC_H |
| #define PLATFORM_SMC_H |
| |
| #include <sm/optee_smc.h> |
| |
| /* |
| * Read SLCR (System Level Control Register) |
| * |
| * Call register usage: |
| * a0 SMC Function ID, ZYNQ7K_SMC_SLCR_READ |
| * a1 Register offset |
| * a2-7 Not used |
| * |
| * Normal return register usage: |
| * a0 OPTEE_SMC_RETURN_OK |
| * a1 Value read back |
| * a2-3 Not used |
| * a4-7 Preserved |
| * |
| * OPTEE_SMC_RETURN_EBADCMD on Invalid input offset: |
| * a0 OPTEE_SMC_RETURN_EBADCMD |
| * a1 Undefined value |
| * a2-3 Not used |
| * a4-7 Preserved |
| */ |
| #define ZYNQ7K_SMC_FUNCID_SLCR_READ 0x100 |
| #define ZYNQ7K_SMC_SLCR_READ \ |
| OPTEE_SMC_CALL_VAL(OPTEE_SMC_32, OPTEE_SMC_FAST_CALL, \ |
| OPTEE_SMC_OWNER_OEM, ZYNQ7K_SMC_FUNCID_SLCR_READ) |
| |
| /* |
| * Write SLCR (System Level Control Register) |
| * |
| * Call register usage: |
| * a0 SMC Function ID, ZYNQ7K_SMC_SLCR_READ |
| * a1 Register offset |
| * a2 Value to write |
| * a3-7 Not used |
| * |
| * Normal return register usage: |
| * a0 OPTEE_SMC_RETURN_OK |
| * a1-3 Not used |
| * a4-7 Preserved |
| * |
| * OPTEE_SMC_RETURN_EBADCMD on Invalid input offset: |
| * a0 OPTEE_SMC_RETURN_EBADCMD |
| * a1-3 Not used |
| * a4-7 Preserved |
| */ |
| #define ZYNQ7K_SMC_FUNCID_SLCR_WRITE 0x101 |
| #define ZYNQ7K_SMC_SLCR_WRITE \ |
| OPTEE_SMC_CALL_VAL(OPTEE_SMC_32, OPTEE_SMC_FAST_CALL, \ |
| OPTEE_SMC_OWNER_OEM, ZYNQ7K_SMC_FUNCID_SLCR_WRITE) |
| |
| #endif /* PLATFORM_SMC_H */ |
