1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2016, Wind River System 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #ifndef PLATFORM_SMC_H 29 #define PLATFORM_SMC_H 30 31 #include <sm/optee_smc.h> 32 33 /* 34 * Read SLCR (System Level Control Register) 35 * 36 * Call register usage: 37 * a0 SMC Function ID, ZYNQ7K_SMC_SLCR_READ 38 * a1 Register offset 39 * a2-7 Not used 40 * 41 * Normal return register usage: 42 * a0 OPTEE_SMC_RETURN_OK 43 * a1 Value read back 44 * a2-3 Not used 45 * a4-7 Preserved 46 * 47 * OPTEE_SMC_RETURN_EBADCMD on Invalid input offset: 48 * a0 OPTEE_SMC_RETURN_EBADCMD 49 * a1 Undefined value 50 * a2-3 Not used 51 * a4-7 Preserved 52 */ 53 #define ZYNQ7K_SMC_FUNCID_SLCR_READ 0x100 54 #define ZYNQ7K_SMC_SLCR_READ \ 55 OPTEE_SMC_CALL_VAL(OPTEE_SMC_32, OPTEE_SMC_FAST_CALL, \ 56 OPTEE_SMC_OWNER_OEM, ZYNQ7K_SMC_FUNCID_SLCR_READ) 57 58 /* 59 * Write SLCR (System Level Control Register) 60 * 61 * Call register usage: 62 * a0 SMC Function ID, ZYNQ7K_SMC_SLCR_READ 63 * a1 Register offset 64 * a2 Value to write 65 * a3-7 Not used 66 * 67 * Normal return register usage: 68 * a0 OPTEE_SMC_RETURN_OK 69 * a1-3 Not used 70 * a4-7 Preserved 71 * 72 * OPTEE_SMC_RETURN_EBADCMD on Invalid input offset: 73 * a0 OPTEE_SMC_RETURN_EBADCMD 74 * a1-3 Not used 75 * a4-7 Preserved 76 */ 77 #define ZYNQ7K_SMC_FUNCID_SLCR_WRITE 0x101 78 #define ZYNQ7K_SMC_SLCR_WRITE \ 79 OPTEE_SMC_CALL_VAL(OPTEE_SMC_32, OPTEE_SMC_FAST_CALL, \ 80 OPTEE_SMC_OWNER_OEM, ZYNQ7K_SMC_FUNCID_SLCR_WRITE) 81 82 #endif /* PLATFORM_SMC_H */ 83