blob: 84a529f42a86c98b744ecb34540b485486426cbc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <ccn.h>
#include <plat_arm.h>
#include <platform_def.h>
static const unsigned char master_to_rn_id_map[] = {
PLAT_ARM_CLUSTER_TO_CCN_ID_MAP
};
static const ccn_desc_t arm_ccn_desc = {
.periphbase = PLAT_ARM_CCN_BASE,
.num_masters = ARRAY_SIZE(master_to_rn_id_map),
.master_to_rn_id_map = master_to_rn_id_map
};
CASSERT(PLAT_ARM_CLUSTER_COUNT == ARRAY_SIZE(master_to_rn_id_map),
assert_invalid_cluster_count_for_ccn_variant);
/******************************************************************************
* The following functions are defined as weak to allow a platform to override
* the way ARM CCN driver is initialised and used.
*****************************************************************************/
#pragma weak plat_arm_interconnect_init
#pragma weak plat_arm_interconnect_enter_coherency
#pragma weak plat_arm_interconnect_exit_coherency
/******************************************************************************
* Helper function to initialize ARM CCN driver.
*****************************************************************************/
void plat_arm_interconnect_init(void)
{
ccn_init(&arm_ccn_desc);
}
/******************************************************************************
* Helper function to place current master into coherency
*****************************************************************************/
void plat_arm_interconnect_enter_coherency(void)
{
ccn_enter_snoop_dvm_domain(1 << MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
}
/******************************************************************************
* Helper function to remove current master from coherency
*****************************************************************************/
void plat_arm_interconnect_exit_coherency(void)
{
ccn_exit_snoop_dvm_domain(1 << MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
}
|
