2 * Copyright (C) ST Ericsson SA 2011
4 * License Terms: GNU General Public License v2
11 #include <linux/interrupt.h>
12 #include <linux/notifier.h>
13 #include <linux/err.h>
15 #include <dt-bindings/mfd/dbx500-prcmu.h> /* For clock identifiers */
17 /* Offset for the firmware version within the TCPM */
18 #define DB8500_PRCMU_FW_VERSION_OFFSET 0xA4
19 #define DBX540_PRCMU_FW_VERSION_OFFSET 0xA8
21 /* PRCMU Wakeup defines */
22 enum prcmu_wakeup_index
{
23 PRCMU_WAKEUP_INDEX_RTC
,
24 PRCMU_WAKEUP_INDEX_RTT0
,
25 PRCMU_WAKEUP_INDEX_RTT1
,
26 PRCMU_WAKEUP_INDEX_HSI0
,
27 PRCMU_WAKEUP_INDEX_HSI1
,
28 PRCMU_WAKEUP_INDEX_USB
,
29 PRCMU_WAKEUP_INDEX_ABB
,
30 PRCMU_WAKEUP_INDEX_ABB_FIFO
,
31 PRCMU_WAKEUP_INDEX_ARM
,
32 PRCMU_WAKEUP_INDEX_CD_IRQ
,
33 NUM_PRCMU_WAKEUP_INDICES
35 #define PRCMU_WAKEUP(_name) (BIT(PRCMU_WAKEUP_INDEX_##_name))
37 /* EPOD (power domain) IDs */
41 * - EPOD_ID_SVAMMDSP: power domain for SVA MMDSP
42 * - EPOD_ID_SVAPIPE: power domain for SVA pipe
43 * - EPOD_ID_SIAMMDSP: power domain for SIA MMDSP
44 * - EPOD_ID_SIAPIPE: power domain for SIA pipe
45 * - EPOD_ID_SGA: power domain for SGA
46 * - EPOD_ID_B2R2_MCDE: power domain for B2R2 and MCDE
47 * - EPOD_ID_ESRAM12: power domain for ESRAM 1 and 2
48 * - EPOD_ID_ESRAM34: power domain for ESRAM 3 and 4
49 * - NUM_EPOD_ID: number of power domains
51 * TODO: These should be prefixed.
53 #define EPOD_ID_SVAMMDSP 0
54 #define EPOD_ID_SVAPIPE 1
55 #define EPOD_ID_SIAMMDSP 2
56 #define EPOD_ID_SIAPIPE 3
58 #define EPOD_ID_B2R2_MCDE 5
59 #define EPOD_ID_ESRAM12 6
60 #define EPOD_ID_ESRAM34 7
64 * state definition for EPOD (power domain)
65 * - EPOD_STATE_NO_CHANGE: The EPOD should remain unchanged
66 * - EPOD_STATE_OFF: The EPOD is switched off
67 * - EPOD_STATE_RAMRET: The EPOD is switched off with its internal RAM in
69 * - EPOD_STATE_ON_CLK_OFF: The EPOD is switched on, clock is still off
70 * - EPOD_STATE_ON: Same as above, but with clock enabled
72 #define EPOD_STATE_NO_CHANGE 0x00
73 #define EPOD_STATE_OFF 0x01
74 #define EPOD_STATE_RAMRET 0x02
75 #define EPOD_STATE_ON_CLK_OFF 0x03
76 #define EPOD_STATE_ON 0x04
81 #define PRCMU_CLKSRC_CLK38M 0x00
82 #define PRCMU_CLKSRC_ACLK 0x01
83 #define PRCMU_CLKSRC_SYSCLK 0x02
84 #define PRCMU_CLKSRC_LCDCLK 0x03
85 #define PRCMU_CLKSRC_SDMMCCLK 0x04
86 #define PRCMU_CLKSRC_TVCLK 0x05
87 #define PRCMU_CLKSRC_TIMCLK 0x06
88 #define PRCMU_CLKSRC_CLK009 0x07
89 /* These are only valid for CLKOUT1: */
90 #define PRCMU_CLKSRC_SIAMMDSPCLK 0x40
91 #define PRCMU_CLKSRC_I2CCLK 0x41
92 #define PRCMU_CLKSRC_MSP02CLK 0x42
93 #define PRCMU_CLKSRC_ARMPLL_OBSCLK 0x43
94 #define PRCMU_CLKSRC_HSIRXCLK 0x44
95 #define PRCMU_CLKSRC_HSITXCLK 0x45
96 #define PRCMU_CLKSRC_ARMCLKFIX 0x46
97 #define PRCMU_CLKSRC_HDMICLK 0x47
100 * enum prcmu_wdog_id - PRCMU watchdog IDs
101 * @PRCMU_WDOG_ALL: use all timers
102 * @PRCMU_WDOG_CPU1: use first CPU timer only
103 * @PRCMU_WDOG_CPU2: use second CPU timer conly
106 PRCMU_WDOG_ALL
= 0x00,
107 PRCMU_WDOG_CPU1
= 0x01,
108 PRCMU_WDOG_CPU2
= 0x02,
112 * enum ape_opp - APE OPP states definition
114 * @APE_NO_CHANGE: The APE operating point is unchanged
115 * @APE_100_OPP: The new APE operating point is ape100opp
117 * @APE_50_PARTLY_25_OPP: 50%, except some clocks at 25%.
121 APE_NO_CHANGE
= 0x01,
124 APE_50_PARTLY_25_OPP
= 0xFF,
128 * enum arm_opp - ARM OPP states definition
130 * @ARM_NO_CHANGE: The ARM operating point is unchanged
131 * @ARM_100_OPP: The new ARM operating point is arm100opp
132 * @ARM_50_OPP: The new ARM operating point is arm50opp
133 * @ARM_MAX_OPP: Operating point is "max" (more than 100)
134 * @ARM_MAX_FREQ100OPP: Set max opp if available, else 100
135 * @ARM_EXTCLK: The new ARM operating point is armExtClk
139 ARM_NO_CHANGE
= 0x01,
143 ARM_MAX_FREQ100OPP
= 0x05,
148 * enum ddr_opp - DDR OPP states definition
149 * @DDR_100_OPP: The new DDR operating point is ddr100opp
150 * @DDR_50_OPP: The new DDR operating point is ddr50opp
151 * @DDR_25_OPP: The new DDR operating point is ddr25opp
160 * Definitions for controlling ESRAM0 in deep sleep.
162 #define ESRAM0_DEEP_SLEEP_STATE_OFF 1
163 #define ESRAM0_DEEP_SLEEP_STATE_RET 2
166 * enum ddr_pwrst - DDR power states definition
167 * @DDR_PWR_STATE_UNCHANGED: SDRAM and DDR controller state is unchanged
169 * @DDR_PWR_STATE_OFFLOWLAT:
170 * @DDR_PWR_STATE_OFFHIGHLAT:
173 DDR_PWR_STATE_UNCHANGED
= 0x00,
174 DDR_PWR_STATE_ON
= 0x01,
175 DDR_PWR_STATE_OFFLOWLAT
= 0x02,
176 DDR_PWR_STATE_OFFHIGHLAT
= 0x03
179 #define DB8500_PRCMU_LEGACY_OFFSET 0xDD4
183 bool enable_set_ddr_opp
;
184 bool enable_ape_opp_100_voltage
;
185 struct ab8500_platform_data
*ab_platdata
;
191 #define PRCMU_FW_PROJECT_U8500 2
192 #define PRCMU_FW_PROJECT_U8400 3
193 #define PRCMU_FW_PROJECT_U9500 4 /* Customer specific */
194 #define PRCMU_FW_PROJECT_U8500_MBB 5
195 #define PRCMU_FW_PROJECT_U8500_C1 6
196 #define PRCMU_FW_PROJECT_U8500_C2 7
197 #define PRCMU_FW_PROJECT_U8500_C3 8
198 #define PRCMU_FW_PROJECT_U8500_C4 9
199 #define PRCMU_FW_PROJECT_U9500_MBL 10
200 #define PRCMU_FW_PROJECT_U8500_MBL 11 /* Customer specific */
201 #define PRCMU_FW_PROJECT_U8500_MBL2 12 /* Customer specific */
202 #define PRCMU_FW_PROJECT_U8520 13
203 #define PRCMU_FW_PROJECT_U8420 14
204 #define PRCMU_FW_PROJECT_A9420 20
205 /* [32..63] 9540 and derivatives */
206 #define PRCMU_FW_PROJECT_U9540 32
207 /* [64..95] 8540 and derivatives */
208 #define PRCMU_FW_PROJECT_L8540 64
209 /* [96..126] 8580 and derivatives */
210 #define PRCMU_FW_PROJECT_L8580 96
212 #define PRCMU_FW_PROJECT_NAME_LEN 20
213 struct prcmu_fw_version
{
214 u32 project
; /* Notice, project shifted with 8 on ux540 */
218 char project_name
[PRCMU_FW_PROJECT_NAME_LEN
];
221 #include <linux/mfd/db8500-prcmu.h>
223 #if defined(CONFIG_UX500_SOC_DB8500)
225 static inline void prcmu_early_init(u32 phy_base
, u32 size
)
227 return db8500_prcmu_early_init(phy_base
, size
);
230 static inline int prcmu_set_power_state(u8 state
, bool keep_ulp_clk
,
233 return db8500_prcmu_set_power_state(state
, keep_ulp_clk
,
237 static inline u8
prcmu_get_power_state_result(void)
239 return db8500_prcmu_get_power_state_result();
242 static inline int prcmu_set_epod(u16 epod_id
, u8 epod_state
)
244 return db8500_prcmu_set_epod(epod_id
, epod_state
);
247 static inline void prcmu_enable_wakeups(u32 wakeups
)
249 db8500_prcmu_enable_wakeups(wakeups
);
252 static inline void prcmu_disable_wakeups(void)
254 prcmu_enable_wakeups(0);
257 static inline void prcmu_config_abb_event_readout(u32 abb_events
)
259 db8500_prcmu_config_abb_event_readout(abb_events
);
262 static inline void prcmu_get_abb_event_buffer(void __iomem
**buf
)
264 db8500_prcmu_get_abb_event_buffer(buf
);
267 int prcmu_abb_read(u8 slave
, u8 reg
, u8
*value
, u8 size
);
268 int prcmu_abb_write(u8 slave
, u8 reg
, u8
*value
, u8 size
);
269 int prcmu_abb_write_masked(u8 slave
, u8 reg
, u8
*value
, u8
*mask
, u8 size
);
271 int prcmu_config_clkout(u8 clkout
, u8 source
, u8 div
);
273 static inline int prcmu_request_clock(u8 clock
, bool enable
)
275 return db8500_prcmu_request_clock(clock
, enable
);
278 unsigned long prcmu_clock_rate(u8 clock
);
279 long prcmu_round_clock_rate(u8 clock
, unsigned long rate
);
280 int prcmu_set_clock_rate(u8 clock
, unsigned long rate
);
282 static inline int prcmu_set_ddr_opp(u8 opp
)
284 return db8500_prcmu_set_ddr_opp(opp
);
286 static inline int prcmu_get_ddr_opp(void)
288 return db8500_prcmu_get_ddr_opp();
291 static inline int prcmu_set_arm_opp(u8 opp
)
293 return db8500_prcmu_set_arm_opp(opp
);
296 static inline int prcmu_get_arm_opp(void)
298 return db8500_prcmu_get_arm_opp();
301 static inline int prcmu_set_ape_opp(u8 opp
)
303 return db8500_prcmu_set_ape_opp(opp
);
306 static inline int prcmu_get_ape_opp(void)
308 return db8500_prcmu_get_ape_opp();
311 static inline int prcmu_request_ape_opp_100_voltage(bool enable
)
313 return db8500_prcmu_request_ape_opp_100_voltage(enable
);
316 static inline void prcmu_system_reset(u16 reset_code
)
318 return db8500_prcmu_system_reset(reset_code
);
321 static inline u16
prcmu_get_reset_code(void)
323 return db8500_prcmu_get_reset_code();
326 int prcmu_ac_wake_req(void);
327 void prcmu_ac_sleep_req(void);
328 static inline void prcmu_modem_reset(void)
330 return db8500_prcmu_modem_reset();
333 static inline bool prcmu_is_ac_wake_requested(void)
335 return db8500_prcmu_is_ac_wake_requested();
338 static inline int prcmu_set_display_clocks(void)
340 return db8500_prcmu_set_display_clocks();
343 static inline int prcmu_disable_dsipll(void)
345 return db8500_prcmu_disable_dsipll();
348 static inline int prcmu_enable_dsipll(void)
350 return db8500_prcmu_enable_dsipll();
353 static inline int prcmu_config_esram0_deep_sleep(u8 state
)
355 return db8500_prcmu_config_esram0_deep_sleep(state
);
358 static inline int prcmu_config_hotdog(u8 threshold
)
360 return db8500_prcmu_config_hotdog(threshold
);
363 static inline int prcmu_config_hotmon(u8 low
, u8 high
)
365 return db8500_prcmu_config_hotmon(low
, high
);
368 static inline int prcmu_start_temp_sense(u16 cycles32k
)
370 return db8500_prcmu_start_temp_sense(cycles32k
);
373 static inline int prcmu_stop_temp_sense(void)
375 return db8500_prcmu_stop_temp_sense();
378 static inline u32
prcmu_read(unsigned int reg
)
380 return db8500_prcmu_read(reg
);
383 static inline void prcmu_write(unsigned int reg
, u32 value
)
385 db8500_prcmu_write(reg
, value
);
388 static inline void prcmu_write_masked(unsigned int reg
, u32 mask
, u32 value
)
390 db8500_prcmu_write_masked(reg
, mask
, value
);
393 static inline int prcmu_enable_a9wdog(u8 id
)
395 return db8500_prcmu_enable_a9wdog(id
);
398 static inline int prcmu_disable_a9wdog(u8 id
)
400 return db8500_prcmu_disable_a9wdog(id
);
403 static inline int prcmu_kick_a9wdog(u8 id
)
405 return db8500_prcmu_kick_a9wdog(id
);
408 static inline int prcmu_load_a9wdog(u8 id
, u32 timeout
)
410 return db8500_prcmu_load_a9wdog(id
, timeout
);
413 static inline int prcmu_config_a9wdog(u8 num
, bool sleep_auto_off
)
415 return db8500_prcmu_config_a9wdog(num
, sleep_auto_off
);
419 static inline void prcmu_early_init(u32 phy_base
, u32 size
) {}
421 static inline int prcmu_set_power_state(u8 state
, bool keep_ulp_clk
,
427 static inline int prcmu_set_epod(u16 epod_id
, u8 epod_state
)
432 static inline void prcmu_enable_wakeups(u32 wakeups
) {}
434 static inline void prcmu_disable_wakeups(void) {}
436 static inline int prcmu_abb_read(u8 slave
, u8 reg
, u8
*value
, u8 size
)
441 static inline int prcmu_abb_write(u8 slave
, u8 reg
, u8
*value
, u8 size
)
446 static inline int prcmu_abb_write_masked(u8 slave
, u8 reg
, u8
*value
, u8
*mask
,
452 static inline int prcmu_config_clkout(u8 clkout
, u8 source
, u8 div
)
457 static inline int prcmu_request_clock(u8 clock
, bool enable
)
462 static inline long prcmu_round_clock_rate(u8 clock
, unsigned long rate
)
467 static inline int prcmu_set_clock_rate(u8 clock
, unsigned long rate
)
472 static inline unsigned long prcmu_clock_rate(u8 clock
)
477 static inline int prcmu_set_ape_opp(u8 opp
)
482 static inline int prcmu_get_ape_opp(void)
487 static inline int prcmu_request_ape_opp_100_voltage(bool enable
)
492 static inline int prcmu_set_arm_opp(u8 opp
)
497 static inline int prcmu_get_arm_opp(void)
502 static inline int prcmu_set_ddr_opp(u8 opp
)
507 static inline int prcmu_get_ddr_opp(void)
512 static inline void prcmu_system_reset(u16 reset_code
) {}
514 static inline u16
prcmu_get_reset_code(void)
519 static inline int prcmu_ac_wake_req(void)
524 static inline void prcmu_ac_sleep_req(void) {}
526 static inline void prcmu_modem_reset(void) {}
528 static inline bool prcmu_is_ac_wake_requested(void)
533 static inline int prcmu_set_display_clocks(void)
538 static inline int prcmu_disable_dsipll(void)
543 static inline int prcmu_enable_dsipll(void)
548 static inline int prcmu_config_esram0_deep_sleep(u8 state
)
553 static inline void prcmu_config_abb_event_readout(u32 abb_events
) {}
555 static inline void prcmu_get_abb_event_buffer(void __iomem
**buf
)
560 static inline int prcmu_config_hotdog(u8 threshold
)
565 static inline int prcmu_config_hotmon(u8 low
, u8 high
)
570 static inline int prcmu_start_temp_sense(u16 cycles32k
)
575 static inline int prcmu_stop_temp_sense(void)
580 static inline u32
prcmu_read(unsigned int reg
)
585 static inline void prcmu_write(unsigned int reg
, u32 value
) {}
587 static inline void prcmu_write_masked(unsigned int reg
, u32 mask
, u32 value
) {}
591 static inline void prcmu_set(unsigned int reg
, u32 bits
)
593 prcmu_write_masked(reg
, bits
, bits
);
596 static inline void prcmu_clear(unsigned int reg
, u32 bits
)
598 prcmu_write_masked(reg
, bits
, 0);
601 /* PRCMU QoS APE OPP class */
602 #define PRCMU_QOS_APE_OPP 1
603 #define PRCMU_QOS_DDR_OPP 2
604 #define PRCMU_QOS_ARM_OPP 3
605 #define PRCMU_QOS_DEFAULT_VALUE -1
607 #ifdef CONFIG_DBX500_PRCMU_QOS_POWER
609 unsigned long prcmu_qos_get_cpufreq_opp_delay(void);
610 void prcmu_qos_set_cpufreq_opp_delay(unsigned long);
611 void prcmu_qos_force_opp(int, s32
);
612 int prcmu_qos_requirement(int pm_qos_class
);
613 int prcmu_qos_add_requirement(int pm_qos_class
, char *name
, s32 value
);
614 int prcmu_qos_update_requirement(int pm_qos_class
, char *name
, s32 new_value
);
615 void prcmu_qos_remove_requirement(int pm_qos_class
, char *name
);
616 int prcmu_qos_add_notifier(int prcmu_qos_class
,
617 struct notifier_block
*notifier
);
618 int prcmu_qos_remove_notifier(int prcmu_qos_class
,
619 struct notifier_block
*notifier
);
623 static inline unsigned long prcmu_qos_get_cpufreq_opp_delay(void)
628 static inline void prcmu_qos_set_cpufreq_opp_delay(unsigned long n
) {}
630 static inline void prcmu_qos_force_opp(int prcmu_qos_class
, s32 i
) {}
632 static inline int prcmu_qos_requirement(int prcmu_qos_class
)
637 static inline int prcmu_qos_add_requirement(int prcmu_qos_class
,
638 char *name
, s32 value
)
643 static inline int prcmu_qos_update_requirement(int prcmu_qos_class
,
644 char *name
, s32 new_value
)
649 static inline void prcmu_qos_remove_requirement(int prcmu_qos_class
, char *name
)
653 static inline int prcmu_qos_add_notifier(int prcmu_qos_class
,
654 struct notifier_block
*notifier
)
658 static inline int prcmu_qos_remove_notifier(int prcmu_qos_class
,
659 struct notifier_block
*notifier
)
666 #endif /* __MACH_PRCMU_H */