1 /*
2 * Copyright (c) 2022, MediaTek Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <common/debug.h>
8 #include <lib/mmio.h>
9 #include <mt_spm.h>
10 #include <mt_spm_conservation.h>
11 #include <mt_spm_internal.h>
12 #include <mt_spm_rc_internal.h>
13 #include <mt_spm_reg.h>
14 #include <mt_spm_resource_req.h>
15 #include <mt_spm_suspend.h>
16 #include <plat_pm.h>
17 #include <uart.h>
18
19 #define SPM_SUSPEND_SLEEP_PCM_FLAG \
20 (SPM_FLAG_DISABLE_INFRA_PDN | \
21 SPM_FLAG_DISABLE_VCORE_DVS | \
22 SPM_FLAG_DISABLE_VCORE_DFS | \
23 SPM_FLAG_USE_SRCCLKENO2)
24
25 #define SPM_SUSPEND_SLEEP_PCM_FLAG1 (0U)
26
27 #define SPM_SUSPEND_PCM_FLAG \
28 (SPM_FLAG_DISABLE_VCORE_DVS | \
29 SPM_FLAG_DISABLE_VCORE_DFS)
30
31 #define SPM_SUSPEND_PCM_FLAG1 (0U)
32
33 #define __WAKE_SRC_FOR_SUSPEND_COMMON__ \
34 (R12_PCM_TIMER | \
35 R12_KP_IRQ_B | \
36 R12_APWDT_EVENT_B | \
37 R12_CONN2AP_SPM_WAKEUP_B | \
38 R12_EINT_EVENT_B | \
39 R12_CONN_WDT_IRQ_B | \
40 R12_SSPM2SPM_WAKEUP_B | \
41 R12_SCP2SPM_WAKEUP_B | \
42 R12_ADSP2SPM_WAKEUP_B | \
43 R12_USBX_CDSC_B | \
44 R12_USBX_POWERDWN_B | \
45 R12_SYS_TIMER_EVENT_B | \
46 R12_EINT_EVENT_SECURE_B | \
47 R12_SYS_CIRQ_IRQ_B | \
48 R12_NNA_WAKEUP | \
49 R12_REG_CPU_WAKEUP)
50
51 #if defined(CFG_MICROTRUST_TEE_SUPPORT)
52 #define WAKE_SRC_FOR_SUSPEND (__WAKE_SRC_FOR_SUSPEND_COMMON__)
53 #else
54 #define WAKE_SRC_FOR_SUSPEND \
55 (__WAKE_SRC_FOR_SUSPEND_COMMON__ | \
56 R12_SEJ_EVENT_B)
57 #endif
58
59 static struct pwr_ctrl suspend_ctrl = {
60 .wake_src = WAKE_SRC_FOR_SUSPEND,
61
62 /* Auto-gen Start */
63
64 /* SPM_AP_STANDBY_CON */
65 .reg_wfi_op = 0,
66 .reg_wfi_type = 0,
67 .reg_mp0_cputop_idle_mask = 0,
68 .reg_mp1_cputop_idle_mask = 0,
69 .reg_mcusys_idle_mask = 0,
70 .reg_md_apsrc_1_sel = 0,
71 .reg_md_apsrc_0_sel = 0,
72 .reg_conn_apsrc_sel = 0,
73
74 /* SPM_SRC6_MASK */
75 .reg_ccif_event_infra_req_mask_b = 0,
76 .reg_ccif_event_apsrc_req_mask_b = 0,
77
78 /* SPM_SRC_REQ */
79 .reg_spm_apsrc_req = 0,
80 .reg_spm_f26m_req = 0,
81 .reg_spm_infra_req = 0,
82 .reg_spm_vrf18_req = 0,
83 .reg_spm_ddren_req = 0,
84 .reg_spm_dvfs_req = 0,
85 .reg_spm_sw_mailbox_req = 0,
86 .reg_spm_sspm_mailbox_req = 0,
87 .reg_spm_adsp_mailbox_req = 0,
88 .reg_spm_scp_mailbox_req = 0,
89
90 /* SPM_SRC_MASK */
91 .reg_md_0_srcclkena_mask_b = 0,
92 .reg_md_0_infra_req_mask_b = 0,
93 .reg_md_0_apsrc_req_mask_b = 0,
94 .reg_md_0_vrf18_req_mask_b = 0,
95 .reg_md_0_ddren_req_mask_b = 0,
96 .reg_md_1_srcclkena_mask_b = 0,
97 .reg_md_1_infra_req_mask_b = 0,
98 .reg_md_1_apsrc_req_mask_b = 0,
99 .reg_md_1_vrf18_req_mask_b = 0,
100 .reg_md_1_ddren_req_mask_b = 0,
101 .reg_conn_srcclkena_mask_b = 1,
102 .reg_conn_srcclkenb_mask_b = 0,
103 .reg_conn_infra_req_mask_b = 1,
104 .reg_conn_apsrc_req_mask_b = 1,
105 .reg_conn_vrf18_req_mask_b = 1,
106 .reg_conn_ddren_req_mask_b = 1,
107 .reg_conn_vfe28_mask_b = 0,
108 .reg_srcclkeni_srcclkena_mask_b = 1,
109 .reg_srcclkeni_infra_req_mask_b = 1,
110 .reg_infrasys_apsrc_req_mask_b = 0,
111 .reg_infrasys_ddren_req_mask_b = 1,
112 .reg_sspm_srcclkena_mask_b = 1,
113 .reg_sspm_infra_req_mask_b = 1,
114 .reg_sspm_apsrc_req_mask_b = 1,
115 .reg_sspm_vrf18_req_mask_b = 1,
116 .reg_sspm_ddren_req_mask_b = 1,
117
118 /* SPM_SRC2_MASK */
119 .reg_scp_srcclkena_mask_b = 1,
120 .reg_scp_infra_req_mask_b = 1,
121 .reg_scp_apsrc_req_mask_b = 1,
122 .reg_scp_vrf18_req_mask_b = 1,
123 .reg_scp_ddren_req_mask_b = 1,
124 .reg_audio_dsp_srcclkena_mask_b = 1,
125 .reg_audio_dsp_infra_req_mask_b = 1,
126 .reg_audio_dsp_apsrc_req_mask_b = 1,
127 .reg_audio_dsp_vrf18_req_mask_b = 1,
128 .reg_audio_dsp_ddren_req_mask_b = 1,
129 .reg_ufs_srcclkena_mask_b = 1,
130 .reg_ufs_infra_req_mask_b = 1,
131 .reg_ufs_apsrc_req_mask_b = 1,
132 .reg_ufs_vrf18_req_mask_b = 1,
133 .reg_ufs_ddren_req_mask_b = 1,
134 .reg_disp0_apsrc_req_mask_b = 1,
135 .reg_disp0_ddren_req_mask_b = 1,
136 .reg_disp1_apsrc_req_mask_b = 1,
137 .reg_disp1_ddren_req_mask_b = 1,
138 .reg_gce_infra_req_mask_b = 1,
139 .reg_gce_apsrc_req_mask_b = 1,
140 .reg_gce_vrf18_req_mask_b = 1,
141 .reg_gce_ddren_req_mask_b = 1,
142 .reg_apu_srcclkena_mask_b = 0,
143 .reg_apu_infra_req_mask_b = 0,
144 .reg_apu_apsrc_req_mask_b = 0,
145 .reg_apu_vrf18_req_mask_b = 0,
146 .reg_apu_ddren_req_mask_b = 0,
147 .reg_cg_check_srcclkena_mask_b = 0,
148 .reg_cg_check_apsrc_req_mask_b = 0,
149 .reg_cg_check_vrf18_req_mask_b = 0,
150 .reg_cg_check_ddren_req_mask_b = 0,
151
152 /* SPM_SRC3_MASK */
153 .reg_dvfsrc_event_trigger_mask_b = 1,
154 .reg_sw2spm_wakeup_mask_b = 0,
155 .reg_adsp2spm_wakeup_mask_b = 0,
156 .reg_sspm2spm_wakeup_mask_b = 0,
157 .reg_scp2spm_wakeup_mask_b = 0,
158 .reg_csyspwrup_ack_mask = 1,
159 .reg_spm_reserved_srcclkena_mask_b = 0,
160 .reg_spm_reserved_infra_req_mask_b = 0,
161 .reg_spm_reserved_apsrc_req_mask_b = 0,
162 .reg_spm_reserved_vrf18_req_mask_b = 0,
163 .reg_spm_reserved_ddren_req_mask_b = 0,
164 .reg_mcupm_srcclkena_mask_b = 0,
165 .reg_mcupm_infra_req_mask_b = 0,
166 .reg_mcupm_apsrc_req_mask_b = 0,
167 .reg_mcupm_vrf18_req_mask_b = 0,
168 .reg_mcupm_ddren_req_mask_b = 0,
169 .reg_msdc0_srcclkena_mask_b = 1,
170 .reg_msdc0_infra_req_mask_b = 1,
171 .reg_msdc0_apsrc_req_mask_b = 1,
172 .reg_msdc0_vrf18_req_mask_b = 1,
173 .reg_msdc0_ddren_req_mask_b = 1,
174 .reg_msdc1_srcclkena_mask_b = 1,
175 .reg_msdc1_infra_req_mask_b = 1,
176 .reg_msdc1_apsrc_req_mask_b = 1,
177 .reg_msdc1_vrf18_req_mask_b = 1,
178 .reg_msdc1_ddren_req_mask_b = 1,
179
180 /* SPM_SRC4_MASK */
181 .reg_ccif_event_srcclkena_mask_b = 0,
182 .reg_bak_psri_srcclkena_mask_b = 0,
183 .reg_bak_psri_infra_req_mask_b = 0,
184 .reg_bak_psri_apsrc_req_mask_b = 0,
185 .reg_bak_psri_vrf18_req_mask_b = 0,
186 .reg_bak_psri_ddren_req_mask_b = 0,
187 .reg_dramc_md32_infra_req_mask_b = 0,
188 .reg_dramc_md32_vrf18_req_mask_b = 0,
189 .reg_conn_srcclkenb2pwrap_mask_b = 0,
190 .reg_dramc_md32_apsrc_req_mask_b = 0,
191
192 /* SPM_SRC5_MASK */
193 .reg_mcusys_merge_apsrc_req_mask_b = 0x83,
194 .reg_mcusys_merge_ddren_req_mask_b = 0x83,
195 .reg_afe_srcclkena_mask_b = 1,
196 .reg_afe_infra_req_mask_b = 1,
197 .reg_afe_apsrc_req_mask_b = 1,
198 .reg_afe_vrf18_req_mask_b = 1,
199 .reg_afe_ddren_req_mask_b = 1,
200 .reg_msdc2_srcclkena_mask_b = 0,
201 .reg_msdc2_infra_req_mask_b = 0,
202 .reg_msdc2_apsrc_req_mask_b = 0,
203 .reg_msdc2_vrf18_req_mask_b = 0,
204 .reg_msdc2_ddren_req_mask_b = 0,
205
206 /* SPM_WAKEUP_EVENT_MASK */
207 .reg_wakeup_event_mask = 0x1383213,
208
209 /* SPM_WAKEUP_EVENT_EXT_MASK */
210 .reg_ext_wakeup_event_mask = 0xFFFFFFFF,
211
212 /* SPM_SRC7_MASK */
213 .reg_pcie_srcclkena_mask_b = 0,
214 .reg_pcie_infra_req_mask_b = 0,
215 .reg_pcie_apsrc_req_mask_b = 0,
216 .reg_pcie_vrf18_req_mask_b = 0,
217 .reg_pcie_ddren_req_mask_b = 0,
218 .reg_dpmaif_srcclkena_mask_b = 1,
219 .reg_dpmaif_infra_req_mask_b = 1,
220 .reg_dpmaif_apsrc_req_mask_b = 1,
221 .reg_dpmaif_vrf18_req_mask_b = 1,
222 .reg_dpmaif_ddren_req_mask_b = 1,
223
224 /* Auto-gen End */
225
226 /*sw flag setting */
227 .pcm_flags = SPM_SUSPEND_PCM_FLAG,
228 .pcm_flags1 = SPM_SUSPEND_PCM_FLAG1,
229 };
230
231 struct spm_lp_scen __spm_suspend = {
232 .pwrctrl = &suspend_ctrl,
233 };
234
mt_spm_suspend_mode_set(int mode)235 int mt_spm_suspend_mode_set(int mode)
236 {
237 if (mode == MT_SPM_SUSPEND_SLEEP) {
238 suspend_ctrl.pcm_flags = SPM_SUSPEND_SLEEP_PCM_FLAG;
239 suspend_ctrl.pcm_flags1 = SPM_SUSPEND_SLEEP_PCM_FLAG1;
240 } else {
241 suspend_ctrl.pcm_flags = SPM_SUSPEND_PCM_FLAG;
242 suspend_ctrl.pcm_flags1 = SPM_SUSPEND_PCM_FLAG1;
243 }
244
245 return 0;
246 }
247
mt_spm_suspend_enter(int state_id,unsigned int ext_opand,unsigned int resource_req)248 int mt_spm_suspend_enter(int state_id, unsigned int ext_opand,
249 unsigned int resource_req)
250 {
251 /* If FMAudio / ADSP is active, change to sleep suspend mode */
252 if ((ext_opand & MT_SPM_EX_OP_SET_SUSPEND_MODE) != 0U) {
253 mt_spm_suspend_mode_set(MT_SPM_SUSPEND_SLEEP);
254 }
255
256 /* Notify MCUPM that device is going suspend flow */
257 mmio_write_32(MCUPM_MBOX_OFFSET_PDN, MCUPM_POWER_DOWN);
258
259 /* Notify UART to sleep */
260 mt_uart_save();
261
262 return spm_conservation(state_id, ext_opand,
263 &__spm_suspend, resource_req);
264 }
265
mt_spm_suspend_resume(int state_id,unsigned int ext_opand,struct wake_status ** status)266 void mt_spm_suspend_resume(int state_id, unsigned int ext_opand,
267 struct wake_status **status)
268 {
269 spm_conservation_finish(state_id, ext_opand, &__spm_suspend, status);
270
271 /* Notify UART to wakeup */
272 mt_uart_restore();
273
274 /* Notify MCUPM that device leave suspend */
275 mmio_write_32(MCUPM_MBOX_OFFSET_PDN, 0);
276
277 /* If FMAudio / ADSP is active, change back to suspend mode */
278 if ((ext_opand & MT_SPM_EX_OP_SET_SUSPEND_MODE) != 0U) {
279 mt_spm_suspend_mode_set(MT_SPM_SUSPEND_SYSTEM_PDN);
280 }
281 }
282
mt_spm_suspend_init(void)283 void mt_spm_suspend_init(void)
284 {
285 spm_conservation_pwrctrl_init(__spm_suspend.pwrctrl);
286 }
287