1 /* 2 * Copyright (c) 2023, Advanced Micro Devices, Inc. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <common/debug.h> 8 #include <lib/mmio.h> 9 #include <lib/smccc.h> 10 #include <plat/common/platform.h> 11 #include <services/arm_arch_svc.h> 12 13 #include <plat_private.h> 14 #include <plat_startup.h> 15 #include <pm_api_sys.h> 16 17 /** 18 * plat_is_smccc_feature_available() - This function checks whether SMCCC 19 * feature is availabile for platform. 20 * @fid: SMCCC function id. 21 * 22 * Return: SMC_ARCH_CALL_SUCCESS - if SMCCC feature is available. 23 * SMC_ARCH_CALL_NOT_SUPPORTED - Otherwise. 24 * 25 */ 26 int32_t plat_is_smccc_feature_available(u_register_t fid) 27 { 28 int32_t ret = 0; 29 30 switch (fid) { 31 case SMCCC_ARCH_SOC_ID: 32 ret = SMC_ARCH_CALL_SUCCESS; 33 break; 34 default: 35 ret = SMC_ARCH_CALL_NOT_SUPPORTED; 36 } 37 38 return ret; 39 } 40 41 /** 42 * plat_get_soc_version() - Get the SOC version of the platform. 43 * 44 * Return: SiP defined SoC version in JEP-106. 45 * 46 * This function is called when the SoC_ID_type == 0. 47 * For further details please refer to section 7.4 of SMC Calling Convention. 48 */ 49 int32_t plat_get_soc_version(void) 50 { 51 uint32_t manfid; 52 53 manfid = SOC_ID_SET_JEP_106(JEDEC_XILINX_BKID, JEDEC_XILINX_MFID); 54 55 return (int32_t)(manfid | (platform_version & SOC_ID_IMPL_DEF_MASK)); 56 } 57 58 /** 59 * plat_get_soc_revision() - Get the SOC revision for the platform. 60 * 61 * Return: SiP defined SoC revision. 62 * 63 * This function is called when the SoC_ID_type == 1 64 * For further details please refer to section 7.4 of SMC Calling Convention 65 */ 66 int32_t plat_get_soc_revision(void) 67 { 68 return (int32_t)(platform_id & SOC_ID_REV_MASK); 69 } 70