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72c7884092
BSEC services should return SMC error codes as other IDs (defined in stm32mp1_smc.h) and not BSEC driver ones. So that non-secure caller is able to treat them correctly. In global SMC handler, unknown ID should also return a value from this definition list, and not the generic one, which seems not well adapted for our needs. Two unsigned values initializations are also changed from 0 to 0U. Change-Id: Ib6fd3866a748cefad1d13d48f7be38241621023e Signed-off-by: Yann Gautier <yann.gautier@st.com> Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* Copyright (c) 2016-2021, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef STM32MP1_SMC_H
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#define STM32MP1_SMC_H
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/*
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* SMC function IDs for STM32 Service queries
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* STM32 SMC services use the space between 0x82000000 and 0x8200FFFF
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* like this is defined in SMC calling Convention by ARM
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* for SiP (silicon Partner)
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* https://developer.arm.com/docs/den0028/latest
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*/
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/* Secure Service access from Non-secure */
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/*
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* STM32_SMC_BSEC call API
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*
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* Argument a0: (input) SMCC ID
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* (output) status return code
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* Argument a1: (input) Service ID (STM32_SMC_BSEC_xxx)
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* Argument a2: (input) OTP index
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* (output) OTP read value, if applicable
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* Argument a3: (input) OTP value if applicable
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*/
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#define STM32_SMC_BSEC 0x82001003
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/*
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* STM32_SIP_SMC_SCMI_AGENT0
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* STM32_SIP_SMC_SCMI_AGENT1
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* Process SCMI message pending in SCMI shared memory buffer.
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*
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* Argument a0: (input) SMCC ID
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*/
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#define STM32_SIP_SMC_SCMI_AGENT0 0x82002000
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#define STM32_SIP_SMC_SCMI_AGENT1 0x82002001
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/* SMC function IDs for SiP Service queries */
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#define STM32_SIP_SVC_CALL_COUNT 0x8200ff00
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#define STM32_SIP_SVC_UID 0x8200ff01
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/* 0x8200ff02 is reserved */
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#define STM32_SIP_SVC_VERSION 0x8200ff03
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/* STM32 SiP Service Calls version numbers */
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#define STM32_SIP_SVC_VERSION_MAJOR 0x0
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#define STM32_SIP_SVC_VERSION_MINOR 0x1
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/* Number of STM32 SiP Calls implemented */
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#define STM32_COMMON_SIP_NUM_CALLS 3
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/* Service for BSEC */
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#define STM32_SMC_READ_SHADOW 0x01
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#define STM32_SMC_PROG_OTP 0x02
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#define STM32_SMC_WRITE_SHADOW 0x03
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#define STM32_SMC_READ_OTP 0x04
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/* SMC error codes */
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#define STM32_SMC_OK 0x00000000U
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#define STM32_SMC_NOT_SUPPORTED 0xFFFFFFFFU
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#define STM32_SMC_FAILED 0xFFFFFFFEU
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#define STM32_SMC_INVALID_PARAMS 0xFFFFFFFDU
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#endif /* STM32MP1_SMC_H */
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