1 /*
2 * Copyright (c) 2022, MediaTek Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <arch_helpers.h>
8 #include <common/debug.h>
9 #include <mt_lp_rm.h>
10 #include <mt_spm.h>
11 #include <mt_spm_cond.h>
12 #include <mt_spm_conservation.h>
13 #include <mt_spm_constraint.h>
14 #include <mt_spm_idle.h>
15 #include <mt_spm_internal.h>
16 #include <mt_spm_notifier.h>
17 #include <mt_spm_rc_internal.h>
18 #include <mt_spm_reg.h>
19 #include <mt_spm_resource_req.h>
20 #include <mt_spm_suspend.h>
21 #include <plat_mtk_lpm.h>
22 #include <plat_pm.h>
23
24 #define CONSTRAINT_SYSPLL_ALLOW \
25 (MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF | \
26 MT_RM_CONSTRAINT_ALLOW_DRAM_S0 | \
27 MT_RM_CONSTRAINT_ALLOW_DRAM_S1 | \
28 MT_RM_CONSTRAINT_ALLOW_VCORE_LP)
29
30 #if (MTK_SPM_EXTENSION_PMIC_CONTROL == 6362)
31 #define SPM_FLAG_EXTRA_PMIC_CONTROL (SPM_FLAG_ENABLE_6362_CTRL)
32 #else
33 #define SPM_FLAG_EXTRA_PMIC_CONTROL (SPM_FLAG_ENABLE_6315_CTRL)
34 #endif
35
36 #define CONSTRAINT_SYSPLL_PCM_FLAG \
37 (SPM_FLAG_DISABLE_INFRA_PDN | \
38 SPM_FLAG_DISABLE_VCORE_DVS | \
39 SPM_FLAG_DISABLE_VCORE_DFS | \
40 SPM_FLAG_USE_SRCCLKENO2 | \
41 SPM_FLAG_SRAM_SLEEP_CTRL | \
42 SPM_FLAG_KEEP_CSYSPWRACK_HIGH | \
43 SPM_FLAG_USE_SRCCLKENO2)
44
45 #define CONSTRAINT_SYSPLL_PCM_FLAG1 (0U)
46 #define CONSTRAINT_SYSPLL_RESOURCE_REQ (MT_SPM_26M)
47
48 static struct mt_spm_cond_tables cond_syspll = {
49 .name = "syspll",
50 .table_cg = {
51 0x0385E03C, /* MTCMOS1 */
52 0x003F0100, /* INFRA0 */
53 0x08040802, /* INFRA1 */
54 0x06015641, /* INFRA2 */
55 0x00000000, /* INFRA3 */
56 0x00000000, /* INFRA4 */
57 0x00000000, /* INFRA5 */
58 0x03720820, /* MMSYS0 */
59 0x00000000, /* MMSYS1 */
60 0x00000000, /* MMSYS2 */
61 0x00015151, /* MMSYS3 */
62 },
63 .table_pll = 0U,
64 };
65
66 static struct mt_spm_cond_tables cond_syspll_res = {
67 .table_cg = {0U},
68 .table_pll = 0U,
69 };
70
71 static struct constraint_status status = {
72 .id = MT_RM_CONSTRAINT_ID_SYSPLL,
73 .valid = (MT_SPM_RC_VALID_SW |
74 MT_SPM_RC_VALID_COND_LATCH |
75 MT_SPM_RC_VALID_XSOC_BBLPM),
76 .cond_block = 0U,
77 .enter_cnt = 0U,
78 .cond_res = &cond_syspll_res,
79 };
80
spm_syspll_conduct(struct spm_lp_scen * spm_lp,unsigned int * resource_req)81 static void spm_syspll_conduct(struct spm_lp_scen *spm_lp,
82 unsigned int *resource_req)
83 {
84 spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_SYSPLL_PCM_FLAG;
85 spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_SYSPLL_PCM_FLAG1;
86
87 *resource_req |= CONSTRAINT_SYSPLL_RESOURCE_REQ;
88 }
89
spm_is_valid_rc_syspll(unsigned int cpu,int state_id)90 bool spm_is_valid_rc_syspll(unsigned int cpu, int state_id)
91 {
92 (void)cpu;
93 (void)state_id;
94
95 return ((status.cond_block == 0U) && IS_MT_RM_RC_READY(status.valid));
96 }
97
spm_update_rc_syspll(int state_id,int type,const void * val)98 int spm_update_rc_syspll(int state_id, int type, const void *val)
99 {
100 const struct mt_spm_cond_tables *tlb;
101 const struct mt_spm_cond_tables *tlb_check;
102 int res = MT_RM_STATUS_OK;
103
104 if (val == NULL) {
105 res = MT_RM_STATUS_BAD;
106 } else {
107 if (type == PLAT_RC_UPDATE_CONDITION) {
108 tlb = (const struct mt_spm_cond_tables *)val;
109 tlb_check = (const struct mt_spm_cond_tables *)&cond_syspll;
110
111 status.cond_block =
112 mt_spm_cond_check(state_id, tlb, tlb_check,
113 ((status.valid &
114 MT_SPM_RC_VALID_COND_LATCH) != 0U) ?
115 (&cond_syspll_res) : (NULL));
116 } else {
117 res = MT_RM_STATUS_BAD;
118 }
119 }
120
121 return res;
122 }
123
spm_allow_rc_syspll(int state_id)124 unsigned int spm_allow_rc_syspll(int state_id)
125 {
126 (void)state_id;
127
128 return CONSTRAINT_SYSPLL_ALLOW;
129 }
130
spm_run_rc_syspll(unsigned int cpu,int state_id)131 int spm_run_rc_syspll(unsigned int cpu, int state_id)
132 {
133 unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
134 unsigned int allows = CONSTRAINT_SYSPLL_ALLOW;
135
136 (void)cpu;
137
138 if (IS_MT_SPM_RC_BBLPM_MODE(status.valid)) {
139 #ifdef MT_SPM_USING_SRCLKEN_RC
140 ext_op |= MT_SPM_EX_OP_SRCLKEN_RC_BBLPM;
141 #else
142 allows |= MT_RM_CONSTRAINT_ALLOW_BBLPM;
143 #endif
144 }
145
146 #ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
147 mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER, allows | (IS_PLAT_SUSPEND_ID(state_id) ?
148 (MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND) : (0U)));
149 #else
150 (void)allows;
151 #endif
152 if (IS_PLAT_SUSPEND_ID(state_id)) {
153 mt_spm_suspend_enter(state_id,
154 (MT_SPM_EX_OP_SET_WDT |
155 MT_SPM_EX_OP_HW_S1_DETECT |
156 MT_SPM_EX_OP_SET_SUSPEND_MODE),
157 CONSTRAINT_SYSPLL_RESOURCE_REQ);
158 } else {
159 mt_spm_idle_generic_enter(state_id, ext_op, spm_syspll_conduct);
160 }
161
162 return 0;
163 }
164
spm_reset_rc_syspll(unsigned int cpu,int state_id)165 int spm_reset_rc_syspll(unsigned int cpu, int state_id)
166 {
167 unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
168 unsigned int allows = CONSTRAINT_SYSPLL_ALLOW;
169
170 (void)cpu;
171
172 if (IS_MT_SPM_RC_BBLPM_MODE(status.valid)) {
173 #ifdef MT_SPM_USING_SRCLKEN_RC
174 ext_op |= MT_SPM_EX_OP_SRCLKEN_RC_BBLPM;
175 #else
176 allows |= MT_RM_CONSTRAINT_ALLOW_BBLPM;
177 #endif
178 }
179
180 #ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
181 mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, allows);
182 #else
183 (void)allows;
184 #endif
185 if (IS_PLAT_SUSPEND_ID(state_id)) {
186 mt_spm_suspend_resume(state_id,
187 (MT_SPM_EX_OP_SET_SUSPEND_MODE |
188 MT_SPM_EX_OP_SET_WDT |
189 MT_SPM_EX_OP_HW_S1_DETECT),
190 NULL);
191 } else {
192 mt_spm_idle_generic_resume(state_id, ext_op, NULL, NULL);
193 status.enter_cnt++;
194 }
195
196 return 0;
197 }
198
