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7c335a91f0
- When OPTEE OS is present and if it support the busfreq
for the running the i.MX, the busfreq is executed in
the OPTEE OS by calling a specific SMC function
- Only a WFE function is copied into the OCRAM to
synchronize all Cores in multi-core devices
- OPTEE OS add a DT property 'busfreq=1' in the 'firmware/optee'
node to indicate the busfreq support
Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Signed-off-by: Arulpandiyan Vadivel <arulpandiyan_vadivel@mentor.com>
37 lines
840 B
C
37 lines
840 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright 2018 NXP
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __SMC_SIP_H__
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#define __SMC_SIP_H__
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#include <linux/arm-smccc.h>
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/*
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* Macro definition building the OPTEE SMC Code function
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* for a Fast Call, SIP operation
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*/
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#define OPTEE_SMC_FAST_CALL_SIP_VAL(func_num) \
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ARM_SMCCC_CALL_VAL( \
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ARM_SMCCC_FAST_CALL, \
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ARM_SMCCC_SMC_32, \
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ARM_SMCCC_OWNER_SIP, \
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(func_num))
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/*
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* Definition of the i.MX SMC SIP Operations
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* Operation value must be aligned with i.MX OPTEE
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* SIP definitions
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*/
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/* Busfreq operation */
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#define IMX_SIP_BUSFREQ_CHANGE 6
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#endif /* __SMC_SIP_H__ */
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