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 <services/arm_arch_svc.h>
11 
12 #include <plat_private.h>
13 #include <plat_startup.h>
14 #include <pm_api_sys.h>
15 
16 /**
17  * plat_is_smccc_feature_available() - This function checks whether SMCCC
18  *                                     feature is availabile for platform.
19  * @fid: SMCCC function id.
20  *
21  * Return: SMC_ARCH_CALL_SUCCESS - if SMCCC feature is available.
22  *         SMC_ARCH_CALL_NOT_SUPPORTED - Otherwise.
23  *
24  */
plat_is_smccc_feature_available(u_register_t fid)25 int32_t plat_is_smccc_feature_available(u_register_t fid)
26 {
27 	switch (fid) {
28 	case SMCCC_ARCH_SOC_ID:
29 		return SMC_ARCH_CALL_SUCCESS;
30 	default:
31 		return SMC_ARCH_CALL_NOT_SUPPORTED;
32 	}
33 }
34 
35 /**
36  * plat_get_soc_version() - Get the SOC version of the platform.
37  *
38  * Return: SiP defined SoC version in JEP-106.
39  *
40  * This function is called when the SoC_ID_type == 0.
41  * For further details please refer to section 7.4 of SMC Calling Convention.
42  */
plat_get_soc_version(void)43 int32_t plat_get_soc_version(void)
44 {
45 	uint32_t manfid;
46 
47 	manfid = SOC_ID_SET_JEP_106(JEDEC_XILINX_BKID, JEDEC_XILINX_MFID);
48 
49 	return (int32_t)(manfid | (platform_version & SOC_ID_IMPL_DEF_MASK));
50 }
51 
52 /**
53  * plat_get_soc_revision() - Get the SOC revision for the platform.
54  *
55  * Return: SiP defined SoC revision.
56  *
57  * This function is called when the  SoC_ID_type == 1
58  * For further details please refer to section 7.4 of SMC Calling Convention
59  */
plat_get_soc_revision(void)60 int32_t plat_get_soc_revision(void)
61 {
62 	return (platform_id & SOC_ID_REV_MASK);
63 }
64