xref: /arm-trusted-firmware/plat/arm/css/sgi/sgi_interconnect.c (revision 91f16700b400a8c0651d24a598fc48ee2997a0d7)
1*91f16700Schasinglulu /*
2*91f16700Schasinglulu  * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
3*91f16700Schasinglulu  *
4*91f16700Schasinglulu  * SPDX-License-Identifier: BSD-3-Clause
5*91f16700Schasinglulu  */
6*91f16700Schasinglulu 
7*91f16700Schasinglulu #include <arch_helpers.h>
8*91f16700Schasinglulu #include <common/debug.h>
9*91f16700Schasinglulu #include <plat/arm/common/plat_arm.h>
10*91f16700Schasinglulu 
11*91f16700Schasinglulu /*
12*91f16700Schasinglulu  * For SGI575 which support FCM (with automatic interconnect enter/exit),
13*91f16700Schasinglulu  * we should not do anything in these interface functions.
14*91f16700Schasinglulu  * They are used to override the weak functions in cci drivers.
15*91f16700Schasinglulu  */
16*91f16700Schasinglulu 
17*91f16700Schasinglulu /******************************************************************************
18*91f16700Schasinglulu  * Helper function to initialize ARM interconnect driver.
19*91f16700Schasinglulu  *****************************************************************************/
20*91f16700Schasinglulu void __init plat_arm_interconnect_init(void)
21*91f16700Schasinglulu {
22*91f16700Schasinglulu }
23*91f16700Schasinglulu 
24*91f16700Schasinglulu /******************************************************************************
25*91f16700Schasinglulu  * Helper function to place current master into coherency
26*91f16700Schasinglulu  *****************************************************************************/
27*91f16700Schasinglulu void plat_arm_interconnect_enter_coherency(void)
28*91f16700Schasinglulu {
29*91f16700Schasinglulu }
30*91f16700Schasinglulu 
31*91f16700Schasinglulu /******************************************************************************
32*91f16700Schasinglulu  * Helper function to remove current master from coherency
33*91f16700Schasinglulu  *****************************************************************************/
34*91f16700Schasinglulu void plat_arm_interconnect_exit_coherency(void)
35*91f16700Schasinglulu {
36*91f16700Schasinglulu }
37