1 /*
2 * Exynos4210 Power Management Unit (PMU) Emulation
3 *
4 * Copyright (C) 2011 Samsung Electronics Co Ltd.
5 * Maksim Kozlov <m.kozlov@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 /*
22 * This model implements PMU registers just as a bulk of memory. Currently,
23 * the only reason this device exists is that secondary CPU boot loader
24 * uses PMU INFORM5 register as a holding pen.
25 */
26
27 #include "qemu/osdep.h"
28 #include "hw/sysbus.h"
29 #include "migration/vmstate.h"
30 #include "qemu/module.h"
31 #include "sysemu/runstate.h"
32 #include "qom/object.h"
33
34 #ifndef DEBUG_PMU
35 #define DEBUG_PMU 0
36 #endif
37
38 #ifndef DEBUG_PMU_EXTEND
39 #define DEBUG_PMU_EXTEND 0
40 #endif
41
42 #if DEBUG_PMU
43 #define PRINT_DEBUG(fmt, args...) \
44 do { \
45 fprintf(stderr, " [%s:%d] "fmt, __func__, __LINE__, ##args); \
46 } while (0)
47
48 #if DEBUG_PMU_EXTEND
49 #define PRINT_DEBUG_EXTEND(fmt, args...) \
50 do { \
51 fprintf(stderr, " [%s:%d] "fmt, __func__, __LINE__, ##args); \
52 } while (0)
53 #else
54 #define PRINT_DEBUG_EXTEND(fmt, args...) do {} while (0)
55 #endif /* EXTEND */
56
57 #else
58 #define PRINT_DEBUG(fmt, args...) do {} while (0)
59 #define PRINT_DEBUG_EXTEND(fmt, args...) do {} while (0)
60 #endif
61
62 /*
63 * Offsets for PMU registers
64 */
65 #define OM_STAT 0x0000 /* OM status register */
66 #define RTC_CLKO_SEL 0x000C /* Controls RTCCLKOUT */
67 #define GNSS_RTC_OUT_CTRL 0x0010 /* Controls GNSS_RTC_OUT */
68 /* Decides whether system-level low-power mode is used. */
69 #define SYSTEM_POWER_DOWN_CTRL 0x0200
70 /* Sets control options for CENTRAL_SEQ */
71 #define SYSTEM_POWER_DOWN_OPTION 0x0208
72 #define SWRESET 0x0400 /* Generate software reset */
73 #define RST_STAT 0x0404 /* Reset status register */
74 #define WAKEUP_STAT 0x0600 /* Wakeup status register */
75 #define EINT_WAKEUP_MASK 0x0604 /* Configure External INTerrupt mask */
76 #define WAKEUP_MASK 0x0608 /* Configure wakeup source mask */
77 #define HDMI_PHY_CONTROL 0x0700 /* HDMI PHY control register */
78 #define USBDEVICE_PHY_CONTROL 0x0704 /* USB Device PHY control register */
79 #define USBHOST_PHY_CONTROL 0x0708 /* USB HOST PHY control register */
80 #define DAC_PHY_CONTROL 0x070C /* DAC control register */
81 #define MIPI_PHY0_CONTROL 0x0710 /* MIPI PHY control register */
82 #define MIPI_PHY1_CONTROL 0x0714 /* MIPI PHY control register */
83 #define ADC_PHY_CONTROL 0x0718 /* TS-ADC control register */
84 #define PCIe_PHY_CONTROL 0x071C /* TS-PCIe control register */
85 #define SATA_PHY_CONTROL 0x0720 /* TS-SATA control register */
86 #define INFORM0 0x0800 /* Information register 0 */
87 #define INFORM1 0x0804 /* Information register 1 */
88 #define INFORM2 0x0808 /* Information register 2 */
89 #define INFORM3 0x080C /* Information register 3 */
90 #define INFORM4 0x0810 /* Information register 4 */
91 #define INFORM5 0x0814 /* Information register 5 */
92 #define INFORM6 0x0818 /* Information register 6 */
93 #define INFORM7 0x081C /* Information register 7 */
94 #define PMU_DEBUG 0x0A00 /* PMU debug register */
95 /* Registers to set system-level low-power option */
96 #define ARM_CORE0_SYS_PWR_REG 0x1000
97 #define ARM_CORE1_SYS_PWR_REG 0x1010
98 #define ARM_COMMON_SYS_PWR_REG 0x1080
99 #define ARM_CPU_L2_0_SYS_PWR_REG 0x10C0
100 #define ARM_CPU_L2_1_SYS_PWR_REG 0x10C4
101 #define CMU_ACLKSTOP_SYS_PWR_REG 0x1100
102 #define CMU_SCLKSTOP_SYS_PWR_REG 0x1104
103 #define CMU_RESET_SYS_PWR_REG 0x110C
104 #define APLL_SYSCLK_SYS_PWR_REG 0x1120
105 #define MPLL_SYSCLK_SYS_PWR_REG 0x1124
106 #define VPLL_SYSCLK_SYS_PWR_REG 0x1128
107 #define EPLL_SYSCLK_SYS_PWR_REG 0x112C
108 #define CMU_CLKSTOP_GPS_ALIVE_SYS_PWR_REG 0x1138
109 #define CMU_RESET_GPS_ALIVE_SYS_PWR_REG 0x113C
110 #define CMU_CLKSTOP_CAM_SYS_PWR_REG 0x1140
111 #define CMU_CLKSTOP_TV_SYS_PWR_REG 0x1144
112 #define CMU_CLKSTOP_MFC_SYS_PWR_REG 0x1148
113 #define CMU_CLKSTOP_G3D_SYS_PWR_REG 0x114C
114 #define CMU_CLKSTOP_LCD0_SYS_PWR_REG 0x1150
115 #define CMU_CLKSTOP_LCD1_SYS_PWR_REG 0x1154
116 #define CMU_CLKSTOP_MAUDIO_SYS_PWR_REG 0x1158
117 #define CMU_CLKSTOP_GPS_SYS_PWR_REG 0x115C
118 #define CMU_RESET_CAM_SYS_PWR_REG 0x1160
119 #define CMU_RESET_TV_SYS_PWR_REG 0x1164
120 #define CMU_RESET_MFC_SYS_PWR_REG 0x1168
121 #define CMU_RESET_G3D_SYS_PWR_REG 0x116C
122 #define CMU_RESET_LCD0_SYS_PWR_REG 0x1170
123 #define CMU_RESET_LCD1_SYS_PWR_REG 0x1174
124 #define CMU_RESET_MAUDIO_SYS_PWR_REG 0x1178
125 #define CMU_RESET_GPS_SYS_PWR_REG 0x117C
126 #define TOP_BUS_SYS_PWR_REG 0x1180
127 #define TOP_RETENTION_SYS_PWR_REG 0x1184
128 #define TOP_PWR_SYS_PWR_REG 0x1188
129 #define LOGIC_RESET_SYS_PWR_REG 0x11A0
130 #define OneNANDXL_MEM_SYS_PWR_REG 0x11C0
131 #define MODEMIF_MEM_SYS_PWR_REG 0x11C4
132 #define USBDEVICE_MEM_SYS_PWR_REG 0x11CC
133 #define SDMMC_MEM_SYS_PWR_REG 0x11D0
134 #define CSSYS_MEM_SYS_PWR_REG 0x11D4
135 #define SECSS_MEM_SYS_PWR_REG 0x11D8
136 #define PCIe_MEM_SYS_PWR_REG 0x11E0
137 #define SATA_MEM_SYS_PWR_REG 0x11E4
138 #define PAD_RETENTION_DRAM_SYS_PWR_REG 0x1200
139 #define PAD_RETENTION_MAUDIO_SYS_PWR_REG 0x1204
140 #define PAD_RETENTION_GPIO_SYS_PWR_REG 0x1220
141 #define PAD_RETENTION_UART_SYS_PWR_REG 0x1224
142 #define PAD_RETENTION_MMCA_SYS_PWR_REG 0x1228
143 #define PAD_RETENTION_MMCB_SYS_PWR_REG 0x122C
144 #define PAD_RETENTION_EBIA_SYS_PWR_REG 0x1230
145 #define PAD_RETENTION_EBIB_SYS_PWR_REG 0x1234
146 #define PAD_ISOLATION_SYS_PWR_REG 0x1240
147 #define PAD_ALV_SEL_SYS_PWR_REG 0x1260
148 #define XUSBXTI_SYS_PWR_REG 0x1280
149 #define XXTI_SYS_PWR_REG 0x1284
150 #define EXT_REGULATOR_SYS_PWR_REG 0x12C0
151 #define GPIO_MODE_SYS_PWR_REG 0x1300
152 #define GPIO_MODE_MAUDIO_SYS_PWR_REG 0x1340
153 #define CAM_SYS_PWR_REG 0x1380
154 #define TV_SYS_PWR_REG 0x1384
155 #define MFC_SYS_PWR_REG 0x1388
156 #define G3D_SYS_PWR_REG 0x138C
157 #define LCD0_SYS_PWR_REG 0x1390
158 #define LCD1_SYS_PWR_REG 0x1394
159 #define MAUDIO_SYS_PWR_REG 0x1398
160 #define GPS_SYS_PWR_REG 0x139C
161 #define GPS_ALIVE_SYS_PWR_REG 0x13A0
162 #define ARM_CORE0_CONFIGURATION 0x2000 /* Configure power mode of ARM_CORE0 */
163 #define ARM_CORE0_STATUS 0x2004 /* Check power mode of ARM_CORE0 */
164 #define ARM_CORE0_OPTION 0x2008 /* Sets control options for ARM_CORE0 */
165 #define ARM_CORE1_CONFIGURATION 0x2080 /* Configure power mode of ARM_CORE1 */
166 #define ARM_CORE1_STATUS 0x2084 /* Check power mode of ARM_CORE1 */
167 #define ARM_CORE1_OPTION 0x2088 /* Sets control options for ARM_CORE0 */
168 #define ARM_COMMON_OPTION 0x2408 /* Sets control options for ARM_COMMON */
169 /* Configure power mode of ARM_CPU_L2_0 */
170 #define ARM_CPU_L2_0_CONFIGURATION 0x2600
171 #define ARM_CPU_L2_0_STATUS 0x2604 /* Check power mode of ARM_CPU_L2_0 */
172 /* Configure power mode of ARM_CPU_L2_1 */
173 #define ARM_CPU_L2_1_CONFIGURATION 0x2620
174 #define ARM_CPU_L2_1_STATUS 0x2624 /* Check power mode of ARM_CPU_L2_1 */
175 /* Sets control options for PAD_RETENTION_MAUDIO */
176 #define PAD_RETENTION_MAUDIO_OPTION 0x3028
177 /* Sets control options for PAD_RETENTION_GPIO */
178 #define PAD_RETENTION_GPIO_OPTION 0x3108
179 /* Sets control options for PAD_RETENTION_UART */
180 #define PAD_RETENTION_UART_OPTION 0x3128
181 /* Sets control options for PAD_RETENTION_MMCA */
182 #define PAD_RETENTION_MMCA_OPTION 0x3148
183 /* Sets control options for PAD_RETENTION_MMCB */
184 #define PAD_RETENTION_MMCB_OPTION 0x3168
185 /* Sets control options for PAD_RETENTION_EBIA */
186 #define PAD_RETENTION_EBIA_OPTION 0x3188
187 /* Sets control options for PAD_RETENTION_EBIB */
188 #define PAD_RETENTION_EBIB_OPTION 0x31A8
189 #define PS_HOLD_CONTROL 0x330C /* PS_HOLD control register */
190 #define XUSBXTI_CONFIGURATION 0x3400 /* Configure the pad of XUSBXTI */
191 #define XUSBXTI_STATUS 0x3404 /* Check the pad of XUSBXTI */
192 /* Sets time required for XUSBXTI to be stabilized */
193 #define XUSBXTI_DURATION 0x341C
194 #define XXTI_CONFIGURATION 0x3420 /* Configure the pad of XXTI */
195 #define XXTI_STATUS 0x3424 /* Check the pad of XXTI */
196 /* Sets time required for XXTI to be stabilized */
197 #define XXTI_DURATION 0x343C
198 /* Sets time required for EXT_REGULATOR to be stabilized */
199 #define EXT_REGULATOR_DURATION 0x361C
200 #define CAM_CONFIGURATION 0x3C00 /* Configure power mode of CAM */
201 #define CAM_STATUS 0x3C04 /* Check power mode of CAM */
202 #define CAM_OPTION 0x3C08 /* Sets control options for CAM */
203 #define TV_CONFIGURATION 0x3C20 /* Configure power mode of TV */
204 #define TV_STATUS 0x3C24 /* Check power mode of TV */
205 #define TV_OPTION 0x3C28 /* Sets control options for TV */
206 #define MFC_CONFIGURATION 0x3C40 /* Configure power mode of MFC */
207 #define MFC_STATUS 0x3C44 /* Check power mode of MFC */
208 #define MFC_OPTION 0x3C48 /* Sets control options for MFC */
209 #define G3D_CONFIGURATION 0x3C60 /* Configure power mode of G3D */
210 #define G3D_STATUS 0x3C64 /* Check power mode of G3D */
211 #define G3D_OPTION 0x3C68 /* Sets control options for G3D */
212 #define LCD0_CONFIGURATION 0x3C80 /* Configure power mode of LCD0 */
213 #define LCD0_STATUS 0x3C84 /* Check power mode of LCD0 */
214 #define LCD0_OPTION 0x3C88 /* Sets control options for LCD0 */
215 #define LCD1_CONFIGURATION 0x3CA0 /* Configure power mode of LCD1 */
216 #define LCD1_STATUS 0x3CA4 /* Check power mode of LCD1 */
217 #define LCD1_OPTION 0x3CA8 /* Sets control options for LCD1 */
218 #define GPS_CONFIGURATION 0x3CE0 /* Configure power mode of GPS */
219 #define GPS_STATUS 0x3CE4 /* Check power mode of GPS */
220 #define GPS_OPTION 0x3CE8 /* Sets control options for GPS */
221 #define GPS_ALIVE_CONFIGURATION 0x3D00 /* Configure power mode of GPS */
222 #define GPS_ALIVE_STATUS 0x3D04 /* Check power mode of GPS */
223 #define GPS_ALIVE_OPTION 0x3D08 /* Sets control options for GPS */
224
225 #define EXYNOS4210_PMU_REGS_MEM_SIZE 0x3d0c
226
227 typedef struct Exynos4210PmuReg {
228 const char *name; /* for debug only */
229 uint32_t offset;
230 uint32_t reset_value;
231 } Exynos4210PmuReg;
232
233 static const Exynos4210PmuReg exynos4210_pmu_regs[] = {
234 {"OM_STAT", OM_STAT, 0x00000000},
235 {"RTC_CLKO_SEL", RTC_CLKO_SEL, 0x00000000},
236 {"GNSS_RTC_OUT_CTRL", GNSS_RTC_OUT_CTRL, 0x00000001},
237 {"SYSTEM_POWER_DOWN_CTRL", SYSTEM_POWER_DOWN_CTRL, 0x00010000},
238 {"SYSTEM_POWER_DOWN_OPTION", SYSTEM_POWER_DOWN_OPTION, 0x03030000},
239 {"SWRESET", SWRESET, 0x00000000},
240 {"RST_STAT", RST_STAT, 0x00000000},
241 {"WAKEUP_STAT", WAKEUP_STAT, 0x00000000},
242 {"EINT_WAKEUP_MASK", EINT_WAKEUP_MASK, 0x00000000},
243 {"WAKEUP_MASK", WAKEUP_MASK, 0x00000000},
244 {"HDMI_PHY_CONTROL", HDMI_PHY_CONTROL, 0x00960000},
245 {"USBDEVICE_PHY_CONTROL", USBDEVICE_PHY_CONTROL, 0x00000000},
246 {"USBHOST_PHY_CONTROL", USBHOST_PHY_CONTROL, 0x00000000},
247 {"DAC_PHY_CONTROL", DAC_PHY_CONTROL, 0x00000000},
248 {"MIPI_PHY0_CONTROL", MIPI_PHY0_CONTROL, 0x00000000},
249 {"MIPI_PHY1_CONTROL", MIPI_PHY1_CONTROL, 0x00000000},
250 {"ADC_PHY_CONTROL", ADC_PHY_CONTROL, 0x00000001},
251 {"PCIe_PHY_CONTROL", PCIe_PHY_CONTROL, 0x00000000},
252 {"SATA_PHY_CONTROL", SATA_PHY_CONTROL, 0x00000000},
253 {"INFORM0", INFORM0, 0x00000000},
254 {"INFORM1", INFORM1, 0x00000000},
255 {"INFORM2", INFORM2, 0x00000000},
256 {"INFORM3", INFORM3, 0x00000000},
257 {"INFORM4", INFORM4, 0x00000000},
258 {"INFORM5", INFORM5, 0x00000000},
259 {"INFORM6", INFORM6, 0x00000000},
260 {"INFORM7", INFORM7, 0x00000000},
261 {"PMU_DEBUG", PMU_DEBUG, 0x00000000},
262 {"ARM_CORE0_SYS_PWR_REG", ARM_CORE0_SYS_PWR_REG, 0xFFFFFFFF},
263 {"ARM_CORE1_SYS_PWR_REG", ARM_CORE1_SYS_PWR_REG, 0xFFFFFFFF},
264 {"ARM_COMMON_SYS_PWR_REG", ARM_COMMON_SYS_PWR_REG, 0xFFFFFFFF},
265 {"ARM_CPU_L2_0_SYS_PWR_REG", ARM_CPU_L2_0_SYS_PWR_REG, 0xFFFFFFFF},
266 {"ARM_CPU_L2_1_SYS_PWR_REG", ARM_CPU_L2_1_SYS_PWR_REG, 0xFFFFFFFF},
267 {"CMU_ACLKSTOP_SYS_PWR_REG", CMU_ACLKSTOP_SYS_PWR_REG, 0xFFFFFFFF},
268 {"CMU_SCLKSTOP_SYS_PWR_REG", CMU_SCLKSTOP_SYS_PWR_REG, 0xFFFFFFFF},
269 {"CMU_RESET_SYS_PWR_REG", CMU_RESET_SYS_PWR_REG, 0xFFFFFFFF},
270 {"APLL_SYSCLK_SYS_PWR_REG", APLL_SYSCLK_SYS_PWR_REG, 0xFFFFFFFF},
271 {"MPLL_SYSCLK_SYS_PWR_REG", MPLL_SYSCLK_SYS_PWR_REG, 0xFFFFFFFF},
272 {"VPLL_SYSCLK_SYS_PWR_REG", VPLL_SYSCLK_SYS_PWR_REG, 0xFFFFFFFF},
273 {"EPLL_SYSCLK_SYS_PWR_REG", EPLL_SYSCLK_SYS_PWR_REG, 0xFFFFFFFF},
274 {"CMU_CLKSTOP_GPS_ALIVE_SYS_PWR_REG", CMU_CLKSTOP_GPS_ALIVE_SYS_PWR_REG,
275 0xFFFFFFFF},
276 {"CMU_RESET_GPS_ALIVE_SYS_PWR_REG", CMU_RESET_GPS_ALIVE_SYS_PWR_REG,
277 0xFFFFFFFF},
278 {"CMU_CLKSTOP_CAM_SYS_PWR_REG", CMU_CLKSTOP_CAM_SYS_PWR_REG, 0xFFFFFFFF},
279 {"CMU_CLKSTOP_TV_SYS_PWR_REG", CMU_CLKSTOP_TV_SYS_PWR_REG, 0xFFFFFFFF},
280 {"CMU_CLKSTOP_MFC_SYS_PWR_REG", CMU_CLKSTOP_MFC_SYS_PWR_REG, 0xFFFFFFFF},
281 {"CMU_CLKSTOP_G3D_SYS_PWR_REG", CMU_CLKSTOP_G3D_SYS_PWR_REG, 0xFFFFFFFF},
282 {"CMU_CLKSTOP_LCD0_SYS_PWR_REG", CMU_CLKSTOP_LCD0_SYS_PWR_REG, 0xFFFFFFFF},
283 {"CMU_CLKSTOP_LCD1_SYS_PWR_REG", CMU_CLKSTOP_LCD1_SYS_PWR_REG, 0xFFFFFFFF},
284 {"CMU_CLKSTOP_MAUDIO_SYS_PWR_REG", CMU_CLKSTOP_MAUDIO_SYS_PWR_REG,
285 0xFFFFFFFF},
286 {"CMU_CLKSTOP_GPS_SYS_PWR_REG", CMU_CLKSTOP_GPS_SYS_PWR_REG, 0xFFFFFFFF},
287 {"CMU_RESET_CAM_SYS_PWR_REG", CMU_RESET_CAM_SYS_PWR_REG, 0xFFFFFFFF},
288 {"CMU_RESET_TV_SYS_PWR_REG", CMU_RESET_TV_SYS_PWR_REG, 0xFFFFFFFF},
289 {"CMU_RESET_MFC_SYS_PWR_REG", CMU_RESET_MFC_SYS_PWR_REG, 0xFFFFFFFF},
290 {"CMU_RESET_G3D_SYS_PWR_REG", CMU_RESET_G3D_SYS_PWR_REG, 0xFFFFFFFF},
291 {"CMU_RESET_LCD0_SYS_PWR_REG", CMU_RESET_LCD0_SYS_PWR_REG, 0xFFFFFFFF},
292 {"CMU_RESET_LCD1_SYS_PWR_REG", CMU_RESET_LCD1_SYS_PWR_REG, 0xFFFFFFFF},
293 {"CMU_RESET_MAUDIO_SYS_PWR_REG", CMU_RESET_MAUDIO_SYS_PWR_REG, 0xFFFFFFFF},
294 {"CMU_RESET_GPS_SYS_PWR_REG", CMU_RESET_GPS_SYS_PWR_REG, 0xFFFFFFFF},
295 {"TOP_BUS_SYS_PWR_REG", TOP_BUS_SYS_PWR_REG, 0xFFFFFFFF},
296 {"TOP_RETENTION_SYS_PWR_REG", TOP_RETENTION_SYS_PWR_REG, 0xFFFFFFFF},
297 {"TOP_PWR_SYS_PWR_REG", TOP_PWR_SYS_PWR_REG, 0xFFFFFFFF},
298 {"LOGIC_RESET_SYS_PWR_REG", LOGIC_RESET_SYS_PWR_REG, 0xFFFFFFFF},
299 {"OneNANDXL_MEM_SYS_PWR_REG", OneNANDXL_MEM_SYS_PWR_REG, 0xFFFFFFFF},
300 {"MODEMIF_MEM_SYS_PWR_REG", MODEMIF_MEM_SYS_PWR_REG, 0xFFFFFFFF},
301 {"USBDEVICE_MEM_SYS_PWR_REG", USBDEVICE_MEM_SYS_PWR_REG, 0xFFFFFFFF},
302 {"SDMMC_MEM_SYS_PWR_REG", SDMMC_MEM_SYS_PWR_REG, 0xFFFFFFFF},
303 {"CSSYS_MEM_SYS_PWR_REG", CSSYS_MEM_SYS_PWR_REG, 0xFFFFFFFF},
304 {"SECSS_MEM_SYS_PWR_REG", SECSS_MEM_SYS_PWR_REG, 0xFFFFFFFF},
305 {"PCIe_MEM_SYS_PWR_REG", PCIe_MEM_SYS_PWR_REG, 0xFFFFFFFF},
306 {"SATA_MEM_SYS_PWR_REG", SATA_MEM_SYS_PWR_REG, 0xFFFFFFFF},
307 {"PAD_RETENTION_DRAM_SYS_PWR_REG", PAD_RETENTION_DRAM_SYS_PWR_REG,
308 0xFFFFFFFF},
309 {"PAD_RETENTION_MAUDIO_SYS_PWR_REG", PAD_RETENTION_MAUDIO_SYS_PWR_REG,
310 0xFFFFFFFF},
311 {"PAD_RETENTION_GPIO_SYS_PWR_REG", PAD_RETENTION_GPIO_SYS_PWR_REG,
312 0xFFFFFFFF},
313 {"PAD_RETENTION_UART_SYS_PWR_REG", PAD_RETENTION_UART_SYS_PWR_REG,
314 0xFFFFFFFF},
315 {"PAD_RETENTION_MMCA_SYS_PWR_REG", PAD_RETENTION_MMCA_SYS_PWR_REG,
316 0xFFFFFFFF},
317 {"PAD_RETENTION_MMCB_SYS_PWR_REG", PAD_RETENTION_MMCB_SYS_PWR_REG,
318 0xFFFFFFFF},
319 {"PAD_RETENTION_EBIA_SYS_PWR_REG", PAD_RETENTION_EBIA_SYS_PWR_REG,
320 0xFFFFFFFF},
321 {"PAD_RETENTION_EBIB_SYS_PWR_REG", PAD_RETENTION_EBIB_SYS_PWR_REG,
322 0xFFFFFFFF},
323 {"PAD_ISOLATION_SYS_PWR_REG", PAD_ISOLATION_SYS_PWR_REG, 0xFFFFFFFF},
324 {"PAD_ALV_SEL_SYS_PWR_REG", PAD_ALV_SEL_SYS_PWR_REG, 0xFFFFFFFF},
325 {"XUSBXTI_SYS_PWR_REG", XUSBXTI_SYS_PWR_REG, 0xFFFFFFFF},
326 {"XXTI_SYS_PWR_REG", XXTI_SYS_PWR_REG, 0xFFFFFFFF},
327 {"EXT_REGULATOR_SYS_PWR_REG", EXT_REGULATOR_SYS_PWR_REG, 0xFFFFFFFF},
328 {"GPIO_MODE_SYS_PWR_REG", GPIO_MODE_SYS_PWR_REG, 0xFFFFFFFF},
329 {"GPIO_MODE_MAUDIO_SYS_PWR_REG", GPIO_MODE_MAUDIO_SYS_PWR_REG, 0xFFFFFFFF},
330 {"CAM_SYS_PWR_REG", CAM_SYS_PWR_REG, 0xFFFFFFFF},
331 {"TV_SYS_PWR_REG", TV_SYS_PWR_REG, 0xFFFFFFFF},
332 {"MFC_SYS_PWR_REG", MFC_SYS_PWR_REG, 0xFFFFFFFF},
333 {"G3D_SYS_PWR_REG", G3D_SYS_PWR_REG, 0xFFFFFFFF},
334 {"LCD0_SYS_PWR_REG", LCD0_SYS_PWR_REG, 0xFFFFFFFF},
335 {"LCD1_SYS_PWR_REG", LCD1_SYS_PWR_REG, 0xFFFFFFFF},
336 {"MAUDIO_SYS_PWR_REG", MAUDIO_SYS_PWR_REG, 0xFFFFFFFF},
337 {"GPS_SYS_PWR_REG", GPS_SYS_PWR_REG, 0xFFFFFFFF},
338 {"GPS_ALIVE_SYS_PWR_REG", GPS_ALIVE_SYS_PWR_REG, 0xFFFFFFFF},
339 {"ARM_CORE0_CONFIGURATION", ARM_CORE0_CONFIGURATION, 0x00000003},
340 {"ARM_CORE0_STATUS", ARM_CORE0_STATUS, 0x00030003},
341 {"ARM_CORE0_OPTION", ARM_CORE0_OPTION, 0x01010001},
342 {"ARM_CORE1_CONFIGURATION", ARM_CORE1_CONFIGURATION, 0x00000003},
343 {"ARM_CORE1_STATUS", ARM_CORE1_STATUS, 0x00030003},
344 {"ARM_CORE1_OPTION", ARM_CORE1_OPTION, 0x01010001},
345 {"ARM_COMMON_OPTION", ARM_COMMON_OPTION, 0x00000001},
346 {"ARM_CPU_L2_0_CONFIGURATION", ARM_CPU_L2_0_CONFIGURATION, 0x00000003},
347 {"ARM_CPU_L2_0_STATUS", ARM_CPU_L2_0_STATUS, 0x00000003},
348 {"ARM_CPU_L2_1_CONFIGURATION", ARM_CPU_L2_1_CONFIGURATION, 0x00000003},
349 {"ARM_CPU_L2_1_STATUS", ARM_CPU_L2_1_STATUS, 0x00000003},
350 {"PAD_RETENTION_MAUDIO_OPTION", PAD_RETENTION_MAUDIO_OPTION, 0x00000000},
351 {"PAD_RETENTION_GPIO_OPTION", PAD_RETENTION_GPIO_OPTION, 0x00000000},
352 {"PAD_RETENTION_UART_OPTION", PAD_RETENTION_UART_OPTION, 0x00000000},
353 {"PAD_RETENTION_MMCA_OPTION", PAD_RETENTION_MMCA_OPTION, 0x00000000},
354 {"PAD_RETENTION_MMCB_OPTION", PAD_RETENTION_MMCB_OPTION, 0x00000000},
355 {"PAD_RETENTION_EBIA_OPTION", PAD_RETENTION_EBIA_OPTION, 0x00000000},
356 {"PAD_RETENTION_EBIB_OPTION", PAD_RETENTION_EBIB_OPTION, 0x00000000},
357 /*
358 * PS_HOLD_CONTROL: reset value and manually toggle high the DATA bit.
359 * DATA bit high, set usually by bootloader, keeps system on.
360 */
361 {"PS_HOLD_CONTROL", PS_HOLD_CONTROL, 0x00005200 | BIT(8)},
362 {"XUSBXTI_CONFIGURATION", XUSBXTI_CONFIGURATION, 0x00000001},
363 {"XUSBXTI_STATUS", XUSBXTI_STATUS, 0x00000001},
364 {"XUSBXTI_DURATION", XUSBXTI_DURATION, 0xFFF00000},
365 {"XXTI_CONFIGURATION", XXTI_CONFIGURATION, 0x00000001},
366 {"XXTI_STATUS", XXTI_STATUS, 0x00000001},
367 {"XXTI_DURATION", XXTI_DURATION, 0xFFF00000},
368 {"EXT_REGULATOR_DURATION", EXT_REGULATOR_DURATION, 0xFFF03FFF},
369 {"CAM_CONFIGURATION", CAM_CONFIGURATION, 0x00000007},
370 {"CAM_STATUS", CAM_STATUS, 0x00060007},
371 {"CAM_OPTION", CAM_OPTION, 0x00000001},
372 {"TV_CONFIGURATION", TV_CONFIGURATION, 0x00000007},
373 {"TV_STATUS", TV_STATUS, 0x00060007},
374 {"TV_OPTION", TV_OPTION, 0x00000001},
375 {"MFC_CONFIGURATION", MFC_CONFIGURATION, 0x00000007},
376 {"MFC_STATUS", MFC_STATUS, 0x00060007},
377 {"MFC_OPTION", MFC_OPTION, 0x00000001},
378 {"G3D_CONFIGURATION", G3D_CONFIGURATION, 0x00000007},
379 {"G3D_STATUS", G3D_STATUS, 0x00060007},
380 {"G3D_OPTION", G3D_OPTION, 0x00000001},
381 {"LCD0_CONFIGURATION", LCD0_CONFIGURATION, 0x00000007},
382 {"LCD0_STATUS", LCD0_STATUS, 0x00060007},
383 {"LCD0_OPTION", LCD0_OPTION, 0x00000001},
384 {"LCD1_CONFIGURATION", LCD1_CONFIGURATION, 0x00000007},
385 {"LCD1_STATUS", LCD1_STATUS, 0x00060007},
386 {"LCD1_OPTION", LCD1_OPTION, 0x00000001},
387 {"GPS_CONFIGURATION", GPS_CONFIGURATION, 0x00000007},
388 {"GPS_STATUS", GPS_STATUS, 0x00060007},
389 {"GPS_OPTION", GPS_OPTION, 0x00000001},
390 {"GPS_ALIVE_CONFIGURATION", GPS_ALIVE_CONFIGURATION, 0x00000007},
391 {"GPS_ALIVE_STATUS", GPS_ALIVE_STATUS, 0x00060007},
392 {"GPS_ALIVE_OPTION", GPS_ALIVE_OPTION, 0x00000001},
393 };
394
395 #define PMU_NUM_OF_REGISTERS ARRAY_SIZE(exynos4210_pmu_regs)
396
397 #define TYPE_EXYNOS4210_PMU "exynos4210.pmu"
398 OBJECT_DECLARE_SIMPLE_TYPE(Exynos4210PmuState, EXYNOS4210_PMU)
399
400 struct Exynos4210PmuState {
401 SysBusDevice parent_obj;
402
403 MemoryRegion iomem;
404 uint32_t reg[PMU_NUM_OF_REGISTERS];
405 };
406
exynos4210_pmu_poweroff(void)407 static void exynos4210_pmu_poweroff(void)
408 {
409 PRINT_DEBUG("QEMU PMU: PS_HOLD bit down, powering off\n");
410 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
411 }
412
exynos4210_pmu_read(void * opaque,hwaddr offset,unsigned size)413 static uint64_t exynos4210_pmu_read(void *opaque, hwaddr offset,
414 unsigned size)
415 {
416 Exynos4210PmuState *s = (Exynos4210PmuState *)opaque;
417 const Exynos4210PmuReg *reg_p = exynos4210_pmu_regs;
418 unsigned int i;
419
420 for (i = 0; i < PMU_NUM_OF_REGISTERS; i++) {
421 if (reg_p->offset == offset) {
422 PRINT_DEBUG_EXTEND("%s [0x%04x] -> 0x%04x\n", reg_p->name,
423 (uint32_t)offset, s->reg[i]);
424 return s->reg[i];
425 }
426 reg_p++;
427 }
428 PRINT_DEBUG("QEMU PMU ERROR: bad read offset 0x%04x\n", (uint32_t)offset);
429 return 0;
430 }
431
exynos4210_pmu_write(void * opaque,hwaddr offset,uint64_t val,unsigned size)432 static void exynos4210_pmu_write(void *opaque, hwaddr offset,
433 uint64_t val, unsigned size)
434 {
435 Exynos4210PmuState *s = (Exynos4210PmuState *)opaque;
436 const Exynos4210PmuReg *reg_p = exynos4210_pmu_regs;
437 unsigned int i;
438
439 for (i = 0; i < PMU_NUM_OF_REGISTERS; i++) {
440 if (reg_p->offset == offset) {
441 PRINT_DEBUG_EXTEND("%s <0x%04x> <- 0x%04x\n", reg_p->name,
442 (uint32_t)offset, (uint32_t)val);
443 s->reg[i] = val;
444 if ((offset == PS_HOLD_CONTROL) && ((val & BIT(8)) == 0)) {
445 /*
446 * We are interested only in setting data bit
447 * of PS_HOLD_CONTROL register to indicate power off request.
448 */
449 exynos4210_pmu_poweroff();
450 }
451 return;
452 }
453 reg_p++;
454 }
455 PRINT_DEBUG("QEMU PMU ERROR: bad write offset 0x%04x\n", (uint32_t)offset);
456 }
457
458 static const MemoryRegionOps exynos4210_pmu_ops = {
459 .read = exynos4210_pmu_read,
460 .write = exynos4210_pmu_write,
461 .endianness = DEVICE_NATIVE_ENDIAN,
462 .valid = {
463 .min_access_size = 4,
464 .max_access_size = 4,
465 .unaligned = false
466 }
467 };
468
exynos4210_pmu_reset(DeviceState * dev)469 static void exynos4210_pmu_reset(DeviceState *dev)
470 {
471 Exynos4210PmuState *s = EXYNOS4210_PMU(dev);
472 unsigned i;
473
474 /* Set default values for registers */
475 for (i = 0; i < PMU_NUM_OF_REGISTERS; i++) {
476 s->reg[i] = exynos4210_pmu_regs[i].reset_value;
477 }
478 }
479
exynos4210_pmu_init(Object * obj)480 static void exynos4210_pmu_init(Object *obj)
481 {
482 Exynos4210PmuState *s = EXYNOS4210_PMU(obj);
483 SysBusDevice *dev = SYS_BUS_DEVICE(obj);
484
485 /* memory mapping */
486 memory_region_init_io(&s->iomem, obj, &exynos4210_pmu_ops, s,
487 "exynos4210.pmu", EXYNOS4210_PMU_REGS_MEM_SIZE);
488 sysbus_init_mmio(dev, &s->iomem);
489 }
490
491 static const VMStateDescription exynos4210_pmu_vmstate = {
492 .name = "exynos4210.pmu",
493 .version_id = 1,
494 .minimum_version_id = 1,
495 .fields = (const VMStateField[]) {
496 VMSTATE_UINT32_ARRAY(reg, Exynos4210PmuState, PMU_NUM_OF_REGISTERS),
497 VMSTATE_END_OF_LIST()
498 }
499 };
500
exynos4210_pmu_class_init(ObjectClass * klass,void * data)501 static void exynos4210_pmu_class_init(ObjectClass *klass, void *data)
502 {
503 DeviceClass *dc = DEVICE_CLASS(klass);
504
505 device_class_set_legacy_reset(dc, exynos4210_pmu_reset);
506 dc->vmsd = &exynos4210_pmu_vmstate;
507 }
508
509 static const TypeInfo exynos4210_pmu_info = {
510 .name = TYPE_EXYNOS4210_PMU,
511 .parent = TYPE_SYS_BUS_DEVICE,
512 .instance_size = sizeof(Exynos4210PmuState),
513 .instance_init = exynos4210_pmu_init,
514 .class_init = exynos4210_pmu_class_init,
515 };
516
exynos4210_pmu_register(void)517 static void exynos4210_pmu_register(void)
518 {
519 type_register_static(&exynos4210_pmu_info);
520 }
521
522 type_init(exynos4210_pmu_register)
523