/* SPDX-License-Identifier: GPL-2.0+ */ /* * PTP hardware clock driver for the IDT ClockMatrix(TM) family of timing and * synchronization devices. * * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company. */ #ifndef PTP_IDTCLOCKMATRIX_H #define PTP_IDTCLOCKMATRIX_H #include #include "idt8a340_reg.h" #define FW_FILENAME "idtcm.bin" #define MAX_TOD (4) #define MAX_PLL (8) #define MAX_OUTPUT (12) #define MAX_ABS_WRITE_PHASE_PICOSECONDS (107374182350LL) #define TOD_MASK_ADDR (0xFFA5) #define DEFAULT_TOD_MASK (0x04) #define SET_U16_LSB(orig, val8) (orig = (0xff00 & (orig)) | (val8)) #define SET_U16_MSB(orig, val8) (orig = (0x00ff & (orig)) | (val8 << 8)) #define TOD0_PTP_PLL_ADDR (0xFFA8) #define TOD1_PTP_PLL_ADDR (0xFFA9) #define TOD2_PTP_PLL_ADDR (0xFFAA) #define TOD3_PTP_PLL_ADDR (0xFFAB) #define TOD0_OUT_ALIGN_MASK_ADDR (0xFFB0) #define TOD1_OUT_ALIGN_MASK_ADDR (0xFFB2) #define TOD2_OUT_ALIGN_MASK_ADDR (0xFFB4) #define TOD3_OUT_ALIGN_MASK_ADDR (0xFFB6) #define DEFAULT_OUTPUT_MASK_PLL0 (0x003) #define DEFAULT_OUTPUT_MASK_PLL1 (0x00c) #define DEFAULT_OUTPUT_MASK_PLL2 (0x030) #define DEFAULT_OUTPUT_MASK_PLL3 (0x0c0) #define DEFAULT_TOD0_PTP_PLL (0) #define DEFAULT_TOD1_PTP_PLL (1) #define DEFAULT_TOD2_PTP_PLL (2) #define DEFAULT_TOD3_PTP_PLL (3) #define POST_SM_RESET_DELAY_MS (3000) #define PHASE_PULL_IN_THRESHOLD_NS_DEPRECATED (150000) #define PHASE_PULL_IN_THRESHOLD_NS (15000) #define TOD_WRITE_OVERHEAD_COUNT_MAX (2) #define TOD_BYTE_COUNT (11) #define LOCK_TIMEOUT_MS (2000) #define LOCK_POLL_INTERVAL_MS (10) #define PEROUT_ENABLE_OUTPUT_MASK (0xdeadbeef) #define IDTCM_MAX_WRITE_COUNT (512) #define FULL_FW_CFG_BYTES (SCRATCH - GPIO_USER_CONTROL) #define FULL_FW_CFG_SKIPPED_BYTES (((SCRATCH >> 7) \ - (GPIO_USER_CONTROL >> 7)) \ * 4) /* 4 bytes skipped every 0x80 */ /* Values of DPLL_N.DPLL_MODE.PLL_MODE */ enum pll_mode { PLL_MODE_MIN = 0, PLL_MODE_NORMAL = PLL_MODE_MIN, PLL_MODE_WRITE_PHASE = 1, PLL_MODE_WRITE_FREQUENCY = 2, PLL_MODE_GPIO_INC_DEC = 3, PLL_MODE_SYNTHESIS = 4, PLL_MODE_PHASE_MEASUREMENT = 5, PLL_MODE_DISABLED = 6, PLL_MODE_MAX = PLL_MODE_DISABLED, }; enum hw_tod_write_trig_sel { HW_TOD_WR_TRIG_SEL_MIN = 0, HW_TOD_WR_TRIG_SEL_MSB = HW_TOD_WR_TRIG_SEL_MIN, HW_TOD_WR_TRIG_SEL_RESERVED = 1, HW_TOD_WR_TRIG_SEL_TOD_PPS = 2, HW_TOD_WR_TRIG_SEL_IRIGB_PPS = 3, HW_TOD_WR_TRIG_SEL_PWM_PPS = 4, HW_TOD_WR_TRIG_SEL_GPIO = 5, HW_TOD_WR_TRIG_SEL_FOD_SYNC = 6, WR_TRIG_SEL_MAX = HW_TOD_WR_TRIG_SEL_FOD_SYNC, }; /* 4.8.7 only */ enum scsr_tod_write_trig_sel { SCSR_TOD_WR_TRIG_SEL_DISABLE = 0, SCSR_TOD_WR_TRIG_SEL_IMMEDIATE = 1, SCSR_TOD_WR_TRIG_SEL_REFCLK = 2, SCSR_TOD_WR_TRIG_SEL_PWMPPS = 3, SCSR_TOD_WR_TRIG_SEL_TODPPS = 4, SCSR_TOD_WR_TRIG_SEL_SYNCFOD = 5, SCSR_TOD_WR_TRIG_SEL_GPIO = 6, SCSR_TOD_WR_TRIG_SEL_MAX = SCSR_TOD_WR_TRIG_SEL_GPIO, }; /* 4.8.7 only */ enum scsr_tod_write_type_sel { SCSR_TOD_WR_TYPE_SEL_ABSOLUTE = 0, SCSR_TOD_WR_TYPE_SEL_DELTA_PLUS = 1, SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS = 2, SCSR_TOD_WR_TYPE_SEL_MAX = SCSR_TOD_WR_TYPE_SEL_DELTA_MINUS, }; /* Values STATUS.DPLL_SYS_STATUS.DPLL_SYS_STATE */ enum dpll_state { DPLL_STATE_MIN = 0, DPLL_STATE_FREERUN = DPLL_STATE_MIN, DPLL_STATE_LOCKACQ = 1, DPLL_STATE_LOCKREC = 2, DPLL_STATE_LOCKED = 3, DPLL_STATE_HOLDOVER = 4, DPLL_STATE_OPEN_LOOP = 5, DPLL_STATE_MAX = DPLL_STATE_OPEN_LOOP, }; struct idtcm; struct idtcm_channel { struct ptp_clock_info caps; struct ptp_clock *ptp_clock; struct idtcm *idtcm; u16 dpll_phase; u16 dpll_freq; u16 dpll_n; u16 dpll_ctrl_n; u16 dpll_phase_pull_in; u16 tod_read_primary; u16 tod_write; u16 tod_n; u16 hw_dpll_n; enum pll_mode pll_mode; u8 pll; u16 output_mask; u8 output_phase_adj[MAX_OUTPUT][4]; }; struct idtcm { struct idtcm_channel channel[MAX_TOD]; struct i2c_client *client; u8 page_offset; u8 tod_mask; char version[16]; u8 deprecated; /* Overhead calculation for adjtime */ u8 calculate_overhead_flag; s64 tod_write_overhead_ns; ktime_t start_time; /* Protects I2C read/modify/write registers from concurrent access */ struct mutex reg_lock; }; struct idtcm_fwrc { u8 hiaddr; u8 loaddr; u8 value; u8 reserved; } __packed; #endif /* PTP_IDTCLOCKMATRIX_H */