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 if (fid == SMCCC_ARCH_SOC_ID) { 31 ret = SMC_ARCH_CALL_SUCCESS; 32 } else { 33 ret = SMC_ARCH_CALL_NOT_SUPPORTED; 34 } 35 36 return ret; 37 } 38 39 /** 40 * plat_get_soc_version() - Get the SOC version of the platform. 41 * 42 * Return: SiP defined SoC version in JEP-106. 43 * 44 * This function is called when the SoC_ID_type == 0. 45 * For further details please refer to section 7.4 of SMC Calling Convention. 46 */ 47 int32_t plat_get_soc_version(void) 48 { 49 uint32_t manfid; 50 51 manfid = SOC_ID_SET_JEP_106(JEDEC_XILINX_BKID, JEDEC_XILINX_MFID); 52 53 return (int32_t)(manfid | (platform_version & SOC_ID_IMPL_DEF_MASK)); 54 } 55 56 /** 57 * plat_get_soc_revision() - Get the SOC revision for the platform. 58 * 59 * Return: SiP defined SoC revision. 60 * 61 * This function is called when the SoC_ID_type == 1 62 * For further details please refer to section 7.4 of SMC Calling Convention 63 */ 64 int32_t plat_get_soc_revision(void) 65 { 66 return (int32_t)(platform_id & SOC_ID_REV_MASK); 67 } 68