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git01.mediatek.com / filogic / atf / d5ec3672af315a0530eff636b0149dc7429a2148 / . / plat / mediatek / mt8173 / drivers / spm / spm_hotplug.c
blob: b89cd9765a9ad1c059f8c390059fdb5440647b3b [file] [log] [blame]
developer65014b82015-04-13 14:47:57 +0800[diff] [blame]1/*
2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * Neither the name of ARM nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific
16 * prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30#include <mmio.h>
31#include <mt8173_def.h>
32#include <platform.h>
33#include <spm.h>
34#include <spm_hotplug.h>
35#include <spm_mcdi.h>
36
37/*
38 * System Power Manager (SPM) is a hardware module, which controls cpu or
39 * system power for different power scenarios using different firmware.
40 * This driver controls the cpu power in cpu hotplug flow.
41 */
42
developer69a03832015-11-16 14:33:35 +0800[diff] [blame]43#define PCM_HOTPLUG_VALID_MASK 0x0000ff00
developer65014b82015-04-13 14:47:57 +0800[diff] [blame]44#define PCM_HOTPLUG_VALID_SHIFT 0x8
45
46/**********************************************************
47 * PCM sequence for CPU hotplug
48 **********************************************************/
49static const unsigned int hotplug_binary[] = {
50 0x1900001f, 0x1020020c, 0x1950001f, 0x1020020c, 0xa9400005, 0x00000001,
51 0xe1000005, 0x1910001f, 0x10006720, 0x814c9001, 0xd82000e5, 0x17c07c1f,
52 0x1900001f, 0x10001220, 0x1950001f, 0x10001220, 0xa15f0405, 0xe1000005,
53 0x1900001f, 0x10001228, 0x1950001f, 0x10001228, 0x810f1401, 0xd8200244,
54 0x17c07c1f, 0xe2e0006d, 0xe2e0002d, 0x1a00001f, 0x100062b8, 0x1910001f,
55 0x100062b8, 0xa9000004, 0x00000001, 0xe2000004, 0x1910001f, 0x100062b8,
56 0x81142804, 0xd8200444, 0x17c07c1f, 0xe2e0002c, 0xe2e0003c, 0xe2e0003e,
57 0xe2e0003a, 0xe2e00032, 0x1910001f, 0x1000660c, 0x81079001, 0x1950001f,
58 0x10006610, 0x81479401, 0xa1001404, 0xd8000584, 0x17c07c1f, 0x1900001f,
59 0x10006404, 0x1950001f, 0x10006404, 0xa1568405, 0xe1000005, 0xf0000000,
60 0x17c07c1f, 0x1900001f, 0x10006404, 0x1950001f, 0x10006404, 0x89400005,
61 0x0000dfff, 0xe1000005, 0xe2e00036, 0xe2e0003e, 0x1910001f, 0x1000660c,
62 0x81079001, 0x1950001f, 0x10006610, 0x81479401, 0x81001404, 0xd82008c4,
63 0x17c07c1f, 0xe2e0002e, 0x1a00001f, 0x100062b8, 0x1910001f, 0x100062b8,
64 0x89000004, 0x0000fffe, 0xe2000004, 0x1910001f, 0x100062b8, 0x81142804,
65 0xd8000ae4, 0x17c07c1f, 0xe2e0006e, 0xe2e0004e, 0xe2e0004c, 0xe2e0004d,
66 0x1900001f, 0x10001220, 0x1950001f, 0x10001220, 0x89400005, 0xbfffffff,
67 0xe1000005, 0x1900001f, 0x10001228, 0x1950001f, 0x10001228, 0x810f1401,
68 0xd8000ce4, 0x17c07c1f, 0x1900001f, 0x1020020c, 0x1950001f, 0x1020020c,
69 0x89400005, 0xfffffffe, 0xe1000005, 0xf0000000, 0x17c07c1f, 0x1212841f,
70 0xe2e00036, 0xe2e0003e, 0x1380201f, 0xe2e0003c, 0xe2a00000, 0x1b80001f,
71 0x20000080, 0xe2e0007c, 0x1b80001f, 0x20000003, 0xe2e0005c, 0xe2e0004c,
72 0xe2e0004d, 0xf0000000, 0x17c07c1f, 0xe2e0004f, 0xe2e0006f, 0xe2e0002f,
73 0xe2a00001, 0x1b80001f, 0x20000080, 0xe2e0002e, 0xe2e0003e, 0xe2e00032,
74 0xf0000000, 0x17c07c1f, 0x1212841f, 0xe2e00026, 0xe2e0002e, 0x1380201f,
75 0x1a00001f, 0x100062b4, 0x1910001f, 0x100062b4, 0x81322804, 0xe2000004,
76 0x81202804, 0xe2000004, 0x1b80001f, 0x20000034, 0x1910001f, 0x100062b4,
77 0x81142804, 0xd8001404, 0x17c07c1f, 0xe2e0000e, 0xe2e0000c, 0xe2e0000d,
78 0xf0000000, 0x17c07c1f, 0xe2e0002d, 0x1a00001f, 0x100062b4, 0x1910001f,
79 0x100062b4, 0xa1002804, 0xe2000004, 0xa1122804, 0xe2000004, 0x1b80001f,
80 0x20000080, 0x1910001f, 0x100062b4, 0x81142804, 0xd82016a4, 0x17c07c1f,
81 0xe2e0002f, 0xe2e0002b, 0xe2e00023, 0x1380201f, 0xe2e00022, 0xf0000000,
82 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
83 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
84 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
85 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
86 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
87 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
88 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
89 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
90 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
91 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
92 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
93 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
94 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
95 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
96 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
97 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
98 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
99 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
100 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
101 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
102 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
103 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
104 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
105 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
106 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
107 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
108 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
109 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
110 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
111 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
112 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
113 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
114 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
115 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
116 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
117 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
118 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
119 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
120 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
121 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
122 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
123 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
124 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
125 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
126 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
127 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
128 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
129 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
130 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
131 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
132 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
133 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
134 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f, 0x17c07c1f,
135 0x17c07c1f, 0x17c07c1f, 0x1840001f, 0x00000001, 0x1840001f, 0x00000001,
136 0x1840001f, 0x00000001, 0xa1d48407, 0x1b00001f, 0x2f7be75f, 0xe8208000,
137 0x10006354, 0xfffe7b47, 0xa1d10407, 0x1b80001f, 0x20000020, 0x17c07c1f,
138 0x1910001f, 0x10006b00, 0x81461001, 0xb14690a1, 0xd82044e5, 0x17c07c1f,
139 0x1910001f, 0x10006610, 0x81079001, 0xd80044e4, 0x17c07c1f, 0x1990001f,
140 0x10006b00, 0x81421801, 0x82429801, 0x81402405, 0xd80044e5, 0x17c07c1f,
141 0x1a40001f, 0x100062b0, 0x1280041f, 0xc24007a0, 0x17c07c1f, 0x1910001f,
142 0x10006b00, 0x81449001, 0xd8204be5, 0x17c07c1f, 0x1910001f, 0x10006b00,
143 0x81009001, 0xd8204984, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81051001,
144 0xd8204be4, 0x17c07c1f, 0x1910001f, 0x10006720, 0x81489001, 0xd82046c5,
145 0x17c07c1f, 0x1a40001f, 0x10006218, 0x1a80001f, 0x10006264, 0xc24010e0,
146 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81051001, 0x1950001f, 0x10006610,
147 0x81451401, 0xa1001404, 0xd8004824, 0x17c07c1f, 0xd0004b00, 0x17c07c1f,
148 0x17c07c1f, 0x1910001f, 0x10006610, 0x81051001, 0xd8004be4, 0x17c07c1f,
149 0x1a40001f, 0x10006218, 0x1a80001f, 0x10006264, 0xc2400ee0, 0x17c07c1f,
150 0x1910001f, 0x10006b00, 0x89000004, 0xfffffdff, 0x1940001f, 0x10006b00,
151 0xe1400004, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81451001, 0xd8205305,
152 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81011001, 0xd82050a4, 0x17c07c1f,
153 0x1910001f, 0x10006610, 0x81059001, 0xd8205304, 0x17c07c1f, 0x1910001f,
154 0x10006720, 0x81491001, 0xd8204de5, 0x17c07c1f, 0x1a40001f, 0x1000621c,
155 0x1a80001f, 0x1000626c, 0xc24010e0, 0x17c07c1f, 0x1910001f, 0x1000660c,
156 0x81059001, 0x1950001f, 0x10006610, 0x81459401, 0xa1001404, 0xd8004f44,
157 0x17c07c1f, 0xd0005220, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610,
158 0x81059001, 0xd8005304, 0x17c07c1f, 0x1a40001f, 0x1000621c, 0x1a80001f,
159 0x1000626c, 0xc2400ee0, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x89000004,
160 0xfffffbff, 0x1940001f, 0x10006b00, 0xe1400004, 0x17c07c1f, 0x1910001f,
161 0x10006b00, 0x81459001, 0xd8205a25, 0x17c07c1f, 0x1910001f, 0x10006b00,
162 0x81019001, 0xd82057c4, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81061001,
163 0xd8205a24, 0x17c07c1f, 0x1910001f, 0x10006720, 0x81499001, 0xd8205505,
164 0x17c07c1f, 0x1a40001f, 0x10006220, 0x1a80001f, 0x10006274, 0xc24010e0,
165 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81061001, 0x1950001f, 0x10006610,
166 0x81461401, 0xa1001404, 0xd8005664, 0x17c07c1f, 0xd0005940, 0x17c07c1f,
167 0x17c07c1f, 0x1910001f, 0x10006610, 0x81061001, 0xd8005a24, 0x17c07c1f,
168 0x1a40001f, 0x10006220, 0x1a80001f, 0x10006274, 0xc2400ee0, 0x17c07c1f,
169 0x1910001f, 0x10006b00, 0x89000004, 0xfffff7ff, 0x1940001f, 0x10006b00,
170 0xe1400004, 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81461001, 0xd8206185,
171 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81021001, 0xd8205ec4, 0x17c07c1f,
172 0x1910001f, 0x10006610, 0x81081001, 0xd8206184, 0x17c07c1f, 0x1910001f,
173 0x10006720, 0x814a1001, 0xd8205c25, 0x17c07c1f, 0x1a40001f, 0x100062a0,
174 0x1280041f, 0xc2401540, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81081001,
175 0x1950001f, 0x10006610, 0x81481401, 0xa1001404, 0xd8005d64, 0x17c07c1f,
176 0xd00060a0, 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81479001,
177 0x81881001, 0x69a00006, 0x00000000, 0x81401805, 0xd8206185, 0x17c07c1f,
178 0x1a40001f, 0x100062a0, 0x1280041f, 0xc2401240, 0x17c07c1f, 0x1910001f,
179 0x10006b00, 0x89000004, 0xffffefff, 0x1940001f, 0x10006b00, 0xe1400004,
180 0x17c07c1f, 0x1910001f, 0x10006b00, 0x81469001, 0xd82068e5, 0x17c07c1f,
181 0x1910001f, 0x10006b00, 0x81029001, 0xd8206624, 0x17c07c1f, 0x1910001f,
182 0x10006610, 0x81089001, 0xd82068e4, 0x17c07c1f, 0x1910001f, 0x10006720,
183 0x814a9001, 0xd8206385, 0x17c07c1f, 0x1a40001f, 0x100062a4, 0x1290841f,
184 0xc2401540, 0x17c07c1f, 0x1910001f, 0x1000660c, 0x81089001, 0x1950001f,
185 0x10006610, 0x81489401, 0xa1001404, 0xd80064c4, 0x17c07c1f, 0xd0006800,
186 0x17c07c1f, 0x17c07c1f, 0x1910001f, 0x10006610, 0x81479001, 0x81889001,
187 0x69a00006, 0x00000000, 0x81401805, 0xd82068e5, 0x17c07c1f, 0x1a40001f,
188 0x100062a4, 0x1290841f, 0xc2401240, 0x17c07c1f, 0x1910001f, 0x10006b00,
189 0x89000004, 0xffffdfff, 0x1940001f, 0x10006b00, 0xe1400004, 0x1910001f,
190 0x10006610, 0x81479001, 0x81881001, 0x69600005, 0x00000000, 0xa1401805,
191 0x81889001, 0xa1401805, 0xd8006bc5, 0x17c07c1f, 0x1910001f, 0x10006b00,
192 0x81421001, 0x82429001, 0x82802405, 0xd8206bca, 0x17c07c1f, 0x1a40001f,
193 0x100062b0, 0x1280041f, 0xc2400000, 0x17c07c1f, 0x1990001f, 0x10006b00,
194 0x89800006, 0x00003f00, 0x69200006, 0x00000000, 0xd82041e4, 0x17c07c1f,
195 0x1990001f, 0x10006320, 0x69200006, 0xbeefbeef, 0xd8006dc4, 0x17c07c1f,
196 0xd00041e0, 0x17c07c1f, 0x1910001f, 0x10006358, 0x810b1001, 0xd8006dc4,
197 0x17c07c1f, 0x1980001f, 0xdeaddead, 0x19c0001f, 0x01411820, 0xf0000000
198};
199static const struct pcm_desc hotplug_pcm = {
200 .version = "pcm_power_down_mt8173_V37",
201 .base = hotplug_binary,
202 .size = 888,
203 .sess = 2,
204 .replace = 0,
205};
206
207static struct pwr_ctrl hotplug_ctrl = {
208 .wake_src = 0,
209 .wake_src_md32 = 0,
210 .wfi_op = WFI_OP_OR,
211 .mcusys_idle_mask = 1,
212 .ca7top_idle_mask = 1,
213 .ca15top_idle_mask = 1,
214 .disp_req_mask = 1,
215 .mfg_req_mask = 1,
216 .md32_req_mask = 1,
217 .syspwreq_mask = 1,
218 .pcm_flags = 0,
219};
220
221static const struct spm_lp_scen spm_hotplug = {
222 .pcmdesc = &hotplug_pcm,
223 .pwrctrl = &hotplug_ctrl,
224};
225
226void spm_go_to_hotplug(void)
227{
228 const struct pcm_desc *pcmdesc = spm_hotplug.pcmdesc;
229 struct pwr_ctrl *pwrctrl = spm_hotplug.pwrctrl;
230
231 set_pwrctrl_pcm_flags(pwrctrl, 0);
232 spm_reset_and_init_pcm();
233 spm_kick_im_to_fetch(pcmdesc);
234 spm_set_power_control(pwrctrl);
235 spm_set_wakeup_event(pwrctrl);
236 spm_kick_pcm_to_run(pwrctrl);
237}
238
239void spm_clear_hotplug(void)
240{
241 /* Inform SPM that CPU wants to program CPU_WAKEUP_EVENT and
242 * DISABLE_CPU_DROM */
243
244 mmio_write_32(SPM_PCM_REG_DATA_INI, PCM_HANDSHAKE_SEND1);
245 mmio_write_32(SPM_PCM_PWR_IO_EN, PCM_RF_SYNC_R6);
246 mmio_write_32(SPM_PCM_PWR_IO_EN, 0);
247
248 /* Wait SPM's response, can't use sleep api */
249 while ((mmio_read_32(SPM_PCM_FSM_STA) & PCM_END_FSM_STA_MASK)
250 != PCM_END_FSM_STA_DEF)
251 ;
252
253 /* no hotplug pcm running */
254 clear_all_ready();
255}
256
257void spm_hotplug_on(unsigned long mpidr)
258{
259 unsigned long linear_id;
260
261 linear_id = platform_get_core_pos(mpidr);
262 spm_lock_get();
263 if (is_hotplug_ready() == 0) {
264 spm_mcdi_wakeup_all_cores();
265 mmio_clrbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK);
266 spm_go_to_hotplug();
267 set_hotplug_ready();
268 }
269 /* turn on CPUx */
270 mmio_clrsetbits_32(SPM_PCM_RESERVE,
271 PCM_HOTPLUG_VALID_MASK | (1 << linear_id),
272 1 << (linear_id + PCM_HOTPLUG_VALID_SHIFT));
273 spm_lock_release();
274}
275
276void spm_hotplug_off(unsigned long mpidr)
277{
278 unsigned long linear_id;
279
280 linear_id = platform_get_core_pos(mpidr);
281 spm_lock_get();
282 if (is_hotplug_ready() == 0) {
283 spm_mcdi_wakeup_all_cores();
284 mmio_clrbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK);
285 spm_go_to_hotplug();
286 set_hotplug_ready();
287 }
288 mmio_clrsetbits_32(SPM_PCM_RESERVE, PCM_HOTPLUG_VALID_MASK,
289 (1 << linear_id) |
290 (1 << (linear_id + PCM_HOTPLUG_VALID_SHIFT)));
291 spm_lock_release();
292}