blob: 04b13525b9cf5c8efdd9b8c3fea38d29525eb4e0 (
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (c) 2020-2021 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <mhu_juno.hpp>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstring>
namespace Mailbox {
MHUJuno::MHUJuno(const uint32_t baseAddress) {
baseAddr = reinterpret_cast<volatile uint32_t *>(baseAddress);
}
void MHUJuno::handleMessage() {
clearMessage();
notify();
}
MHUJuno::~MHUJuno() {}
// Doorbell only
bool MHUJuno::sendMessage() {
write(CPU1_INTR_SET, 1);
return true;
}
// Doorbell only
void MHUJuno::clearMessage() {
write(CPU0_INTR_CLR, 0xF);
}
bool MHUJuno::verifyHardware() {
uint32_t pidr0 = read(PIDR0);
uint32_t pidr1 = read(PIDR1);
uint32_t pidr2 = read(PIDR2);
uint32_t pidr3 = read(PIDR3);
uint32_t pidr4 = read(PIDR4);
uint32_t cidr0 = read(CIDR0);
uint32_t cidr1 = read(CIDR1);
uint32_t cidr2 = read(CIDR2);
uint32_t cidr3 = read(CIDR3);
if (pidr0 != 0x56 || pidr1 != 0xb8 || pidr2 != 0x0b || pidr3 != 0x00 || pidr4 != 0x04 || cidr0 != 0x0d ||
cidr1 != 0xf0 || cidr2 != 0x05 || cidr3 != 0xb1) {
return false;
}
return true;
}
void MHUJuno::write(const uint32_t offset, const uint32_t value) {
write32(baseAddr, offset, value);
}
uint32_t MHUJuno::read(const uint32_t offset) {
return read32(baseAddr, offset);
}
} // namespace Mailbox
|
