/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright ( C ) ST Ericsson SA 2011
*
* STE Ux500 PRCMU API
*/
#ifndef __MACH_PRCMU_H
#define __MACH_PRCMU_H
#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <linux/err.h>
#include <dt-bindings/mfd/dbx500-prcmu.h> /* For clock identifiers */
/* Offset for the firmware version within the TCPM */
#define DB8500_PRCMU_FW_VERSION_OFFSET 0 xA4
#define DBX540_PRCMU_FW_VERSION_OFFSET 0 xA8
/* PRCMU Wakeup defines */
enum prcmu_wakeup_index {
PRCMU_WAKEUP_INDEX_RTC,
PRCMU_WAKEUP_INDEX_RTT0,
PRCMU_WAKEUP_INDEX_RTT1,
PRCMU_WAKEUP_INDEX_HSI0,
PRCMU_WAKEUP_INDEX_HSI1,
PRCMU_WAKEUP_INDEX_USB,
PRCMU_WAKEUP_INDEX_ABB,
PRCMU_WAKEUP_INDEX_ABB_FIFO,
PRCMU_WAKEUP_INDEX_ARM,
PRCMU_WAKEUP_INDEX_CD_IRQ,
NUM_PRCMU_WAKEUP_INDICES
};
#define PRCMU_WAKEUP(_name) (BIT(PRCMU_WAKEUP_INDEX_## _name))
/* EPOD (power domain) IDs */
/*
* DB8500 EPODs
* - EPOD_ID_SVAMMDSP : power domain for SVA MMDSP
* - EPOD_ID_SVAPIPE : power domain for SVA pipe
* - EPOD_ID_SIAMMDSP : power domain for SIA MMDSP
* - EPOD_ID_SIAPIPE : power domain for SIA pipe
* - EPOD_ID_SGA : power domain for SGA
* - EPOD_ID_B2R2_MCDE : power domain for B2R2 and MCDE
* - EPOD_ID_ESRAM12 : power domain for ESRAM 1 and 2
* - EPOD_ID_ESRAM34 : power domain for ESRAM 3 and 4
* - NUM_EPOD_ID : number of power domains
*
* TODO : These should be prefixed .
*/
#define EPOD_ID_SVAMMDSP 0
#define EPOD_ID_SVAPIPE 1
#define EPOD_ID_SIAMMDSP 2
#define EPOD_ID_SIAPIPE 3
#define EPOD_ID_SGA 4
#define EPOD_ID_B2R2_MCDE 5
#define EPOD_ID_ESRAM12 6
#define EPOD_ID_ESRAM34 7
#define NUM_EPOD_ID 8
/*
* state definition for EPOD ( power domain )
* - EPOD_STATE_NO_CHANGE : The EPOD should remain unchanged
* - EPOD_STATE_OFF : The EPOD is switched off
* - EPOD_STATE_RAMRET : The EPOD is switched off with its internal RAM in
* retention
* - EPOD_STATE_ON_CLK_OFF : The EPOD is switched on , clock is still off
* - EPOD_STATE_ON : Same as above , but with clock enabled
*/
#define EPOD_STATE_NO_CHANGE 0 x00
#define EPOD_STATE_OFF 0 x01
#define EPOD_STATE_RAMRET 0 x02
#define EPOD_STATE_ON_CLK_OFF 0 x03
#define EPOD_STATE_ON 0 x04
/*
* CLKOUT sources
*/
#define PRCMU_CLKSRC_CLK38M 0 x00
#define PRCMU_CLKSRC_ACLK 0 x01
#define PRCMU_CLKSRC_SYSCLK 0 x02
#define PRCMU_CLKSRC_LCDCLK 0 x03
#define PRCMU_CLKSRC_SDMMCCLK 0 x04
#define PRCMU_CLKSRC_TVCLK 0 x05
#define PRCMU_CLKSRC_TIMCLK 0 x06
#define PRCMU_CLKSRC_CLK009 0 x07
/* These are only valid for CLKOUT1: */
#define PRCMU_CLKSRC_SIAMMDSPCLK 0 x40
#define PRCMU_CLKSRC_I2CCLK 0 x41
#define PRCMU_CLKSRC_MSP02CLK 0 x42
#define PRCMU_CLKSRC_ARMPLL_OBSCLK 0 x43
#define PRCMU_CLKSRC_HSIRXCLK 0 x44
#define PRCMU_CLKSRC_HSITXCLK 0 x45
#define PRCMU_CLKSRC_ARMCLKFIX 0 x46
#define PRCMU_CLKSRC_HDMICLK 0 x47
/**
* enum prcmu_wdog_id - PRCMU watchdog IDs
* @ PRCMU_WDOG_ALL : use all timers
* @ PRCMU_WDOG_CPU1 : use first CPU timer only
* @ PRCMU_WDOG_CPU2 : use second CPU timer conly
*/
enum prcmu_wdog_id {
PRCMU_WDOG_ALL = 0 x00,
PRCMU_WDOG_CPU1 = 0 x01,
PRCMU_WDOG_CPU2 = 0 x02,
};
/**
* enum ape_opp - APE OPP states definition
* @ APE_OPP_INIT :
* @ APE_NO_CHANGE : The APE operating point is unchanged
* @ APE_100_OPP : The new APE operating point is ape100opp
* @ APE_50_OPP : 50 %
* @ APE_50_PARTLY_25_OPP : 50 % , except some clocks at 25 % .
*/
enum ape_opp {
APE_OPP_INIT = 0 x00,
APE_NO_CHANGE = 0 x01,
APE_100_OPP = 0 x02,
APE_50_OPP = 0 x03,
APE_50_PARTLY_25_OPP = 0 xFF,
};
/**
* enum arm_opp - ARM OPP states definition
* @ ARM_OPP_INIT :
* @ ARM_NO_CHANGE : The ARM operating point is unchanged
* @ ARM_100_OPP : The new ARM operating point is arm100opp
* @ ARM_50_OPP : The new ARM operating point is arm50opp
* @ ARM_MAX_OPP : Operating point is " max " ( more than 100 )
* @ ARM_MAX_FREQ100OPP : Set max opp if available , else 100
* @ ARM_EXTCLK : The new ARM operating point is armExtClk
*/
enum arm_opp {
ARM_OPP_INIT = 0 x00,
ARM_NO_CHANGE = 0 x01,
ARM_100_OPP = 0 x02,
ARM_50_OPP = 0 x03,
ARM_MAX_OPP = 0 x04,
ARM_MAX_FREQ100OPP = 0 x05,
ARM_EXTCLK = 0 x07
};
/**
* enum ddr_opp - DDR OPP states definition
* @ DDR_100_OPP : The new DDR operating point is ddr100opp
* @ DDR_50_OPP : The new DDR operating point is ddr50opp
* @ DDR_25_OPP : The new DDR operating point is ddr25opp
*/
enum ddr_opp {
DDR_100_OPP = 0 x00,
DDR_50_OPP = 0 x01,
DDR_25_OPP = 0 x02,
};
/*
* Definitions for controlling ESRAM0 in deep sleep .
*/
#define ESRAM0_DEEP_SLEEP_STATE_OFF 1
#define ESRAM0_DEEP_SLEEP_STATE_RET 2
/**
* enum ddr_pwrst - DDR power states definition
* @ DDR_PWR_STATE_UNCHANGED : SDRAM and DDR controller state is unchanged
* @ DDR_PWR_STATE_ON :
* @ DDR_PWR_STATE_OFFLOWLAT :
* @ DDR_PWR_STATE_OFFHIGHLAT :
*/
enum ddr_pwrst {
DDR_PWR_STATE_UNCHANGED = 0 x00,
DDR_PWR_STATE_ON = 0 x01,
DDR_PWR_STATE_OFFLOWLAT = 0 x02,
DDR_PWR_STATE_OFFHIGHLAT = 0 x03
};
#define DB8500_PRCMU_LEGACY_OFFSET 0 xDD4
#define PRCMU_FW_PROJECT_U8500 2
#define PRCMU_FW_PROJECT_U8400 3
#define PRCMU_FW_PROJECT_U9500 4 /* Customer specific */
#define PRCMU_FW_PROJECT_U8500_MBB 5
#define PRCMU_FW_PROJECT_U8500_C1 6
#define PRCMU_FW_PROJECT_U8500_C2 7
#define PRCMU_FW_PROJECT_U8500_C3 8
#define PRCMU_FW_PROJECT_U8500_C4 9
#define PRCMU_FW_PROJECT_U9500_MBL 10
#define PRCMU_FW_PROJECT_U8500_SSG1 11 /* Samsung specific */
#define PRCMU_FW_PROJECT_U8500_MBL2 12 /* Customer specific */
#define PRCMU_FW_PROJECT_U8520 13
#define PRCMU_FW_PROJECT_U8420 14
#define PRCMU_FW_PROJECT_U8500_SSG2 15 /* Samsung specific */
#define PRCMU_FW_PROJECT_U8420_SYSCLK 17
#define PRCMU_FW_PROJECT_A9420 20
/* [32..63] 9540 and derivatives */
#define PRCMU_FW_PROJECT_U9540 32
/* [64..95] 8540 and derivatives */
#define PRCMU_FW_PROJECT_L8540 64
/* [96..126] 8580 and derivatives */
#define PRCMU_FW_PROJECT_L8580 96
#define PRCMU_FW_PROJECT_NAME_LEN 20
struct prcmu_fw_version {
u32 project; /* Notice, project shifted with 8 on ux540 */
u8 api_version;
u8 func_version;
u8 errata;
char project_name[PRCMU_FW_PROJECT_NAME_LEN];
};
#include <linux/mfd/db8500-prcmu.h>
#if defined (CONFIG_UX500_SOC_DB8500)
static inline void __init prcmu_early_init(void )
{
db8500_prcmu_early_init();
}
static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
bool keep_ap_pll)
{
return db8500_prcmu_set_power_state(state, keep_ulp_clk,
keep_ap_pll);
}
static inline u8 prcmu_get_power_state_result(void )
{
return db8500_prcmu_get_power_state_result();
}
static inline int prcmu_set_epod(u16 epod_id, u8 epod_state)
{
return db8500_prcmu_set_epod(epod_id, epod_state);
}
static inline void prcmu_enable_wakeups(u32 wakeups)
{
db8500_prcmu_enable_wakeups(wakeups);
}
static inline void prcmu_disable_wakeups(void )
{
prcmu_enable_wakeups(0 );
}
static inline void prcmu_config_abb_event_readout(u32 abb_events)
{
db8500_prcmu_config_abb_event_readout(abb_events);
}
static inline void prcmu_get_abb_event_buffer(void __iomem **buf)
{
db8500_prcmu_get_abb_event_buffer(buf);
}
int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size);
int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size);
int prcmu_abb_write_masked(u8 slave, u8 reg, u8 *value, u8 *mask, u8 size);
int prcmu_config_clkout(u8 clkout, u8 source, u8 div);
static inline int prcmu_request_clock(u8 clock, bool enable)
{
return db8500_prcmu_request_clock(clock, enable);
}
unsigned long prcmu_clock_rate(u8 clock);
long prcmu_round_clock_rate(u8 clock, unsigned long rate);
int prcmu_set_clock_rate(u8 clock, unsigned long rate);
static inline int prcmu_get_ddr_opp(void )
{
return db8500_prcmu_get_ddr_opp();
}
static inline int prcmu_set_arm_opp(u8 opp)
{
return db8500_prcmu_set_arm_opp(opp);
}
static inline int prcmu_get_arm_opp(void )
{
return db8500_prcmu_get_arm_opp();
}
static inline int prcmu_set_ape_opp(u8 opp)
{
return db8500_prcmu_set_ape_opp(opp);
}
static inline int prcmu_get_ape_opp(void )
{
return db8500_prcmu_get_ape_opp();
}
static inline int prcmu_request_ape_opp_100_voltage(bool enable)
{
return db8500_prcmu_request_ape_opp_100_voltage(enable);
}
static inline void prcmu_system_reset(u16 reset_code)
{
db8500_prcmu_system_reset(reset_code);
}
static inline u16 prcmu_get_reset_code(void )
{
return db8500_prcmu_get_reset_code();
}
int prcmu_ac_wake_req(void );
void prcmu_ac_sleep_req(void );
static inline void prcmu_modem_reset(void )
{
db8500_prcmu_modem_reset();
}
static inline bool prcmu_is_ac_wake_requested(void )
{
return db8500_prcmu_is_ac_wake_requested();
}
static inline int prcmu_config_esram0_deep_sleep(u8 state)
{
return db8500_prcmu_config_esram0_deep_sleep(state);
}
static inline int prcmu_config_hotdog(u8 threshold)
{
return db8500_prcmu_config_hotdog(threshold);
}
static inline int prcmu_config_hotmon(u8 low, u8 high)
{
return db8500_prcmu_config_hotmon(low, high);
}
static inline int prcmu_start_temp_sense(u16 cycles32k)
{
return db8500_prcmu_start_temp_sense(cycles32k);
}
static inline int prcmu_stop_temp_sense(void )
{
return db8500_prcmu_stop_temp_sense();
}
static inline u32 prcmu_read(unsigned int reg)
{
return db8500_prcmu_read(reg);
}
static inline void prcmu_write(unsigned int reg, u32 value)
{
db8500_prcmu_write(reg, value);
}
static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value)
{
db8500_prcmu_write_masked(reg, mask, value);
}
static inline int prcmu_enable_a9wdog(u8 id)
{
return db8500_prcmu_enable_a9wdog(id);
}
static inline int prcmu_disable_a9wdog(u8 id)
{
return db8500_prcmu_disable_a9wdog(id);
}
static inline int prcmu_kick_a9wdog(u8 id)
{
return db8500_prcmu_kick_a9wdog(id);
}
static inline int prcmu_load_a9wdog(u8 id, u32 timeout)
{
return db8500_prcmu_load_a9wdog(id, timeout);
}
static inline int prcmu_config_a9wdog(u8 num, bool sleep_auto_off)
{
return db8500_prcmu_config_a9wdog(num, sleep_auto_off);
}
#else
static inline void prcmu_early_init(void ) {}
static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
bool keep_ap_pll)
{
return 0 ;
}
static inline int prcmu_set_epod(u16 epod_id, u8 epod_state)
{
return 0 ;
}
static inline void prcmu_enable_wakeups(u32 wakeups) {}
static inline void prcmu_disable_wakeups(void ) {}
static inline int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size)
{
return -ENOSYS;
}
static inline int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size)
{
return -ENOSYS;
}
static inline int prcmu_abb_write_masked(u8 slave, u8 reg, u8 *value, u8 *mask,
u8 size)
{
return -ENOSYS;
}
static inline int prcmu_config_clkout(u8 clkout, u8 source, u8 div)
{
return 0 ;
}
static inline int prcmu_request_clock(u8 clock, bool enable)
{
return 0 ;
}
static inline long prcmu_round_clock_rate(u8 clock, unsigned long rate)
{
return 0 ;
}
static inline int prcmu_set_clock_rate(u8 clock, unsigned long rate)
{
return 0 ;
}
static inline unsigned long prcmu_clock_rate(u8 clock)
{
return 0 ;
}
static inline int prcmu_set_ape_opp(u8 opp)
{
return 0 ;
}
static inline int prcmu_get_ape_opp(void )
{
return APE_100_OPP;
}
static inline int prcmu_request_ape_opp_100_voltage(bool enable)
{
return 0 ;
}
static inline int prcmu_set_arm_opp(u8 opp)
{
return 0 ;
}
static inline int prcmu_get_arm_opp(void )
{
return ARM_100_OPP;
}
static inline int prcmu_get_ddr_opp(void )
{
return DDR_100_OPP;
}
static inline void prcmu_system_reset(u16 reset_code) {}
static inline u16 prcmu_get_reset_code(void )
{
return 0 ;
}
static inline int prcmu_ac_wake_req(void )
{
return 0 ;
}
static inline void prcmu_ac_sleep_req(void ) {}
static inline void prcmu_modem_reset(void ) {}
static inline bool prcmu_is_ac_wake_requested(void )
{
return false ;
}
static inline int prcmu_config_esram0_deep_sleep(u8 state)
{
return 0 ;
}
static inline void prcmu_config_abb_event_readout(u32 abb_events) {}
static inline void prcmu_get_abb_event_buffer(void __iomem **buf)
{
*buf = NULL;
}
static inline int prcmu_config_hotdog(u8 threshold)
{
return 0 ;
}
static inline int prcmu_config_hotmon(u8 low, u8 high)
{
return 0 ;
}
static inline int prcmu_start_temp_sense(u16 cycles32k)
{
return 0 ;
}
static inline int prcmu_stop_temp_sense(void )
{
return 0 ;
}
static inline u32 prcmu_read(unsigned int reg)
{
return 0 ;
}
static inline void prcmu_write(unsigned int reg, u32 value) {}
static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value) {}
#endif
static inline void prcmu_set(unsigned int reg, u32 bits)
{
prcmu_write_masked(reg, bits, bits);
}
static inline void prcmu_clear(unsigned int reg, u32 bits)
{
prcmu_write_masked(reg, bits, 0 );
}
/* PRCMU QoS APE OPP class */
#define PRCMU_QOS_APE_OPP 1
#define PRCMU_QOS_DDR_OPP 2
#define PRCMU_QOS_ARM_OPP 3
#define PRCMU_QOS_DEFAULT_VALUE -1
static inline int prcmu_qos_add_requirement(int prcmu_qos_class,
char *name, s32 value)
{
return 0 ;
}
static inline int prcmu_qos_update_requirement(int prcmu_qos_class,
char *name, s32 new_value)
{
return 0 ;
}
static inline void prcmu_qos_remove_requirement(int prcmu_qos_class, char *name)
{
}
#endif /* __MACH_PRCMU_H */
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