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https://github.com/ARM-software/arm-trusted-firmware.git
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fdaaaeb431
This change implements platform services for stm32mp1 to expose clock and reset controllers over SCMI clock and reset domain protocols in sp_min firmware. Requests execution use a fastcall SMC context using a SiP function ID. The setup allows the create SCMI channels by assigning a specific SiP SMC function ID for each channel/agent identifier defined. In this change, stm32mp1 exposes a single channel and hence expects single agent at a time. The input payload in copied in secure memory before the message in passed through the SCMI server drivers. BL32/sp_min is invoked for a single SCMI message processing and always returns with a synchronous response message passed back to the caller agent. This change fixes and updates STM32_COMMON_SIP_NUM_CALLS that was previously wrongly set 4 whereas only 1 SiP SMC function ID was to be counted. STM32_COMMON_SIP_NUM_CALLS is now set to 3 since the 2 added SiP SMC function IDs for SCMI services. Change-Id: Icb428775856b9aec00538172aea4cf11e609b033 Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright (c) 2016-2019, 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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#endif /* STM32MP1_SMC_H */
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