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ptp: Add a ptp clock driver for IDT ClockMatrix. 

The IDT ClockMatrix (TM) family includes integrated devices that provide
eight PLL channels.  Each PLL channel can be independently configured as a
frequency synthesizer, jitter attenuator, digitally controlled
oscillator (DCO), or a digital phase lock loop (DPLL).  Typically
these devices are used as timing references and clock sources for PTP
applications.  This patch adds support for the device.

Co-developed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Vincent Cheng <vincent.cheng.xh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vincent Cheng 2019-10-31 23:20:07 -04:00 committed by David S. Miller
parent 5c5e7aac63
commit 3a6ba7dc77
5 changed files with 2201 additions and 0 deletions
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12
drivers/ptp/Kconfig
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@ -119,4 +119,16 @@ config PTP_1588_CLOCK_KVM
To compile this driver as a module, choose M here: the module
will be called ptp_kvm.
config PTP_1588_CLOCK_IDTCM
tristate "IDT CLOCKMATRIX as PTP clock"
select PTP_1588_CLOCK
default n
help
This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP
clock. This clock is only useful if your time stamping MAC
is connected to the IDT chip.
To compile this driver as a module, choose M here: the module
will be called ptp_clockmatrix.
endmenu

1
drivers/ptp/Makefile
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@ -12,3 +12,4 @@ obj-$(CONFIG_PTP_1588_CLOCK_KVM) += ptp_kvm.o
obj-$(CONFIG_PTP_1588_CLOCK_QORIQ) += ptp-qoriq.o
ptp-qoriq-y += ptp_qoriq.o
ptp-qoriq-$(CONFIG_DEBUG_FS) += ptp_qoriq_debugfs.o
obj-$(CONFIG_PTP_1588_CLOCK_IDTCM) += ptp_clockmatrix.o

659
drivers/ptp/idt8a340_reg.h Normal file
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@ -0,0 +1,659 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/* idt8a340_reg.h
*
* Originally generated by regen.tcl on Thu Feb 14 19:23:44 PST 2019
* https://github.com/richardcochran/regen
*
* Hand modified to include some HW registers.
* Based on 4.8.0, SCSR rev C commit a03c7ae5
*/
#ifndef HAVE_IDT8A340_REG
#define HAVE_IDT8A340_REG
#define PAGE_ADDR_BASE 0x0000
#define PAGE_ADDR 0x00fc
#define HW_REVISION 0x8180
#define REV_ID 0x007a
#define HW_DPLL_0 (0x8a00)
#define HW_DPLL_1 (0x8b00)
#define HW_DPLL_2 (0x8c00)
#define HW_DPLL_3 (0x8d00)
#define HW_DPLL_TOD_SW_TRIG_ADDR__0 (0x080)
#define HW_DPLL_TOD_CTRL_1 (0x089)
#define HW_DPLL_TOD_CTRL_2 (0x08A)
#define HW_DPLL_TOD_OVR__0 (0x098)
#define HW_DPLL_TOD_OUT_0__0 (0x0B0)
#define HW_Q0_Q1_CH_SYNC_CTRL_0 (0xa740)
#define HW_Q0_Q1_CH_SYNC_CTRL_1 (0xa741)
#define HW_Q2_Q3_CH_SYNC_CTRL_0 (0xa742)
#define HW_Q2_Q3_CH_SYNC_CTRL_1 (0xa743)
#define HW_Q4_Q5_CH_SYNC_CTRL_0 (0xa744)
#define HW_Q4_Q5_CH_SYNC_CTRL_1 (0xa745)
#define HW_Q6_Q7_CH_SYNC_CTRL_0 (0xa746)
#define HW_Q6_Q7_CH_SYNC_CTRL_1 (0xa747)
#define HW_Q8_CH_SYNC_CTRL_0 (0xa748)
#define HW_Q8_CH_SYNC_CTRL_1 (0xa749)
#define HW_Q9_CH_SYNC_CTRL_0 (0xa74a)
#define HW_Q9_CH_SYNC_CTRL_1 (0xa74b)
#define HW_Q10_CH_SYNC_CTRL_0 (0xa74c)
#define HW_Q10_CH_SYNC_CTRL_1 (0xa74d)
#define HW_Q11_CH_SYNC_CTRL_0 (0xa74e)
#define HW_Q11_CH_SYNC_CTRL_1 (0xa74f)
#define SYNC_SOURCE_DPLL0_TOD_PPS 0x14
#define SYNC_SOURCE_DPLL1_TOD_PPS 0x15
#define SYNC_SOURCE_DPLL2_TOD_PPS 0x16
#define SYNC_SOURCE_DPLL3_TOD_PPS 0x17
#define SYNCTRL1_MASTER_SYNC_RST BIT(7)
#define SYNCTRL1_MASTER_SYNC_TRIG BIT(5)
#define SYNCTRL1_TOD_SYNC_TRIG BIT(4)
#define SYNCTRL1_FBDIV_FRAME_SYNC_TRIG BIT(3)
#define SYNCTRL1_FBDIV_SYNC_TRIG BIT(2)
#define SYNCTRL1_Q1_DIV_SYNC_TRIG BIT(1)
#define SYNCTRL1_Q0_DIV_SYNC_TRIG BIT(0)
#define RESET_CTRL 0xc000
#define SM_RESET 0x0012
#define SM_RESET_CMD 0x5A
#define GENERAL_STATUS 0xc014
#define HW_REV_ID 0x000A
#define BOND_ID 0x000B
#define HW_CSR_ID 0x000C
#define HW_IRQ_ID 0x000E
#define MAJ_REL 0x0010
#define MIN_REL 0x0011
#define HOTFIX_REL 0x0012
#define PIPELINE_ID 0x0014
#define BUILD_ID 0x0018
#define JTAG_DEVICE_ID 0x001c
#define PRODUCT_ID 0x001e
#define STATUS 0xc03c
#define USER_GPIO0_TO_7_STATUS 0x008a
#define USER_GPIO8_TO_15_STATUS 0x008b
#define GPIO_USER_CONTROL 0xc160
#define GPIO0_TO_7_OUT 0x0000
#define GPIO8_TO_15_OUT 0x0001
#define STICKY_STATUS_CLEAR 0xc164
#define GPIO_TOD_NOTIFICATION_CLEAR 0xc16c
#define ALERT_CFG 0xc188
#define SYS_DPLL_XO 0xc194
#define SYS_APLL 0xc19c
#define INPUT_0 0xc1b0
#define INPUT_1 0xc1c0
#define INPUT_2 0xc1d0
#define INPUT_3 0xc200
#define INPUT_4 0xc210
#define INPUT_5 0xc220
#define INPUT_6 0xc230
#define INPUT_7 0xc240
#define INPUT_8 0xc250
#define INPUT_9 0xc260
#define INPUT_10 0xc280
#define INPUT_11 0xc290
#define INPUT_12 0xc2a0
#define INPUT_13 0xc2b0
#define INPUT_14 0xc2c0
#define INPUT_15 0xc2d0
#define REF_MON_0 0xc2e0
#define REF_MON_1 0xc2ec
#define REF_MON_2 0xc300
#define REF_MON_3 0xc30c
#define REF_MON_4 0xc318
#define REF_MON_5 0xc324
#define REF_MON_6 0xc330
#define REF_MON_7 0xc33c
#define REF_MON_8 0xc348
#define REF_MON_9 0xc354
#define REF_MON_10 0xc360
#define REF_MON_11 0xc36c
#define REF_MON_12 0xc380
#define REF_MON_13 0xc38c
#define REF_MON_14 0xc398
#define REF_MON_15 0xc3a4
#define DPLL_0 0xc3b0
#define DPLL_CTRL_REG_0 0x0002
#define DPLL_CTRL_REG_1 0x0003
#define DPLL_CTRL_REG_2 0x0004
#define DPLL_TOD_SYNC_CFG 0x0031
#define DPLL_COMBO_SLAVE_CFG_0 0x0032
#define DPLL_COMBO_SLAVE_CFG_1 0x0033
#define DPLL_SLAVE_REF_CFG 0x0034
#define DPLL_REF_MODE 0x0035
#define DPLL_PHASE_MEASUREMENT_CFG 0x0036
#define DPLL_MODE 0x0037
#define DPLL_1 0xc400
#define DPLL_2 0xc438
#define DPLL_3 0xc480
#define DPLL_4 0xc4b8
#define DPLL_5 0xc500
#define DPLL_6 0xc538
#define DPLL_7 0xc580
#define SYS_DPLL 0xc5b8
#define DPLL_CTRL_0 0xc600
#define DPLL_CTRL_DPLL_MANU_REF_CFG 0x0001
#define DPLL_CTRL_1 0xc63c
#define DPLL_CTRL_2 0xc680
#define DPLL_CTRL_3 0xc6bc
#define DPLL_CTRL_4 0xc700
#define DPLL_CTRL_5 0xc73c
#define DPLL_CTRL_6 0xc780
#define DPLL_CTRL_7 0xc7bc
#define SYS_DPLL_CTRL 0xc800
#define DPLL_PHASE_0 0xc818
/* Signed 42-bit FFO in units of 2^(-53) */
#define DPLL_WR_PHASE 0x0000
#define DPLL_PHASE_1 0xc81c
#define DPLL_PHASE_2 0xc820
#define DPLL_PHASE_3 0xc824
#define DPLL_PHASE_4 0xc828
#define DPLL_PHASE_5 0xc82c
#define DPLL_PHASE_6 0xc830
#define DPLL_PHASE_7 0xc834
#define DPLL_FREQ_0 0xc838
/* Signed 42-bit FFO in units of 2^(-53) */
#define DPLL_WR_FREQ 0x0000
#define DPLL_FREQ_1 0xc840
#define DPLL_FREQ_2 0xc848
#define DPLL_FREQ_3 0xc850
#define DPLL_FREQ_4 0xc858
#define DPLL_FREQ_5 0xc860
#define DPLL_FREQ_6 0xc868
#define DPLL_FREQ_7 0xc870
#define DPLL_PHASE_PULL_IN_0 0xc880
#define PULL_IN_OFFSET 0x0000 /* Signed 32 bit */
#define PULL_IN_SLOPE_LIMIT 0x0004 /* Unsigned 24 bit */
#define PULL_IN_CTRL 0x0007
#define DPLL_PHASE_PULL_IN_1 0xc888
#define DPLL_PHASE_PULL_IN_2 0xc890
#define DPLL_PHASE_PULL_IN_3 0xc898
#define DPLL_PHASE_PULL_IN_4 0xc8a0
#define DPLL_PHASE_PULL_IN_5 0xc8a8
#define DPLL_PHASE_PULL_IN_6 0xc8b0
#define DPLL_PHASE_PULL_IN_7 0xc8b8
#define GPIO_CFG 0xc8c0
#define GPIO_CFG_GBL 0x0000
#define GPIO_0 0xc8c2
#define GPIO_DCO_INC_DEC 0x0000
#define GPIO_OUT_CTRL_0 0x0001
#define GPIO_OUT_CTRL_1 0x0002
#define GPIO_TOD_TRIG 0x0003
#define GPIO_DPLL_INDICATOR 0x0004
#define GPIO_LOS_INDICATOR 0x0005
#define GPIO_REF_INPUT_DSQ_0 0x0006
#define GPIO_REF_INPUT_DSQ_1 0x0007
#define GPIO_REF_INPUT_DSQ_2 0x0008
#define GPIO_REF_INPUT_DSQ_3 0x0009
#define GPIO_MAN_CLK_SEL_0 0x000a
#define GPIO_MAN_CLK_SEL_1 0x000b
#define GPIO_MAN_CLK_SEL_2 0x000c
#define GPIO_SLAVE 0x000d
#define GPIO_ALERT_OUT_CFG 0x000e
#define GPIO_TOD_NOTIFICATION_CFG 0x000f
#define GPIO_CTRL 0x0010
#define GPIO_1 0xc8d4
#define GPIO_2 0xc8e6
#define GPIO_3 0xc900
#define GPIO_4 0xc912
#define GPIO_5 0xc924
#define GPIO_6 0xc936
#define GPIO_7 0xc948
#define GPIO_8 0xc95a
#define GPIO_9 0xc980
#define GPIO_10 0xc992
#define GPIO_11 0xc9a4
#define GPIO_12 0xc9b6
#define GPIO_13 0xc9c8
#define GPIO_14 0xc9da
#define GPIO_15 0xca00
#define OUT_DIV_MUX 0xca12
#define OUTPUT_0 0xca14
/* FOD frequency output divider value */
#define OUT_DIV 0x0000
#define OUT_DUTY_CYCLE_HIGH 0x0004
#define OUT_CTRL_0 0x0008
#define OUT_CTRL_1 0x0009
/* Phase adjustment in FOD cycles */
#define OUT_PHASE_ADJ 0x000c
#define OUTPUT_1 0xca24
#define OUTPUT_2 0xca34
#define OUTPUT_3 0xca44
#define OUTPUT_4 0xca54
#define OUTPUT_5 0xca64
#define OUTPUT_6 0xca80
#define OUTPUT_7 0xca90
#define OUTPUT_8 0xcaa0
#define OUTPUT_9 0xcab0
#define OUTPUT_10 0xcac0
#define OUTPUT_11 0xcad0
#define SERIAL 0xcae0
#define PWM_ENCODER_0 0xcb00
#define PWM_ENCODER_1 0xcb08
#define PWM_ENCODER_2 0xcb10
#define PWM_ENCODER_3 0xcb18
#define PWM_ENCODER_4 0xcb20
#define PWM_ENCODER_5 0xcb28
#define PWM_ENCODER_6 0xcb30
#define PWM_ENCODER_7 0xcb38
#define PWM_DECODER_0 0xcb40
#define PWM_DECODER_1 0xcb48
#define PWM_DECODER_2 0xcb50
#define PWM_DECODER_3 0xcb58
#define PWM_DECODER_4 0xcb60
#define PWM_DECODER_5 0xcb68
#define PWM_DECODER_6 0xcb70
#define PWM_DECODER_7 0xcb80
#define PWM_DECODER_8 0xcb88
#define PWM_DECODER_9 0xcb90
#define PWM_DECODER_10 0xcb98
#define PWM_DECODER_11 0xcba0
#define PWM_DECODER_12 0xcba8
#define PWM_DECODER_13 0xcbb0
#define PWM_DECODER_14 0xcbb8
#define PWM_DECODER_15 0xcbc0
#define PWM_USER_DATA 0xcbc8
#define TOD_0 0xcbcc
/* Enable TOD counter, output channel sync and even-PPS mode */
#define TOD_CFG 0x0000
#define TOD_1 0xcbce
#define TOD_2 0xcbd0
#define TOD_3 0xcbd2
#define TOD_WRITE_0 0xcc00
/* 8-bit subns, 32-bit ns, 48-bit seconds */
#define TOD_WRITE 0x0000
/* Counter increments after TOD write is completed */
#define TOD_WRITE_COUNTER 0x000c
/* TOD write trigger configuration */
#define TOD_WRITE_SELECT_CFG_0 0x000d
/* TOD write trigger selection */
#define TOD_WRITE_CMD 0x000f
#define TOD_WRITE_1 0xcc10
#define TOD_WRITE_2 0xcc20
#define TOD_WRITE_3 0xcc30
#define TOD_READ_PRIMARY_0 0xcc40
/* 8-bit subns, 32-bit ns, 48-bit seconds */
#define TOD_READ_PRIMARY 0x0000
/* Counter increments after TOD write is completed */
#define TOD_READ_PRIMARY_COUNTER 0x000b
/* Read trigger configuration */
#define TOD_READ_PRIMARY_SEL_CFG_0 0x000c
/* Read trigger selection */
#define TOD_READ_PRIMARY_CMD 0x000e
#define TOD_READ_PRIMARY_1 0xcc50
#define TOD_READ_PRIMARY_2 0xcc60
#define TOD_READ_PRIMARY_3 0xcc80
#define TOD_READ_SECONDARY_0 0xcc90
#define TOD_READ_SECONDARY_1 0xcca0
#define TOD_READ_SECONDARY_2 0xccb0
#define TOD_READ_SECONDARY_3 0xccc0
#define OUTPUT_TDC_CFG 0xccd0
#define OUTPUT_TDC_0 0xcd00
#define OUTPUT_TDC_1 0xcd08
#define OUTPUT_TDC_2 0xcd10
#define OUTPUT_TDC_3 0xcd18
#define INPUT_TDC 0xcd20
#define SCRATCH 0xcf50
#define EEPROM 0xcf68
#define OTP 0xcf70
#define BYTE 0xcf80
/* Bit definitions for the MAJ_REL register */
#define MAJOR_SHIFT (1)
#define MAJOR_MASK (0x7f)
#define PR_BUILD BIT(0)
/* Bit definitions for the USER_GPIO0_TO_7_STATUS register */
#define GPIO0_LEVEL BIT(0)
#define GPIO1_LEVEL BIT(1)
#define GPIO2_LEVEL BIT(2)
#define GPIO3_LEVEL BIT(3)
#define GPIO4_LEVEL BIT(4)
#define GPIO5_LEVEL BIT(5)
#define GPIO6_LEVEL BIT(6)
#define GPIO7_LEVEL BIT(7)
/* Bit definitions for the USER_GPIO8_TO_15_STATUS register */
#define GPIO8_LEVEL BIT(0)
#define GPIO9_LEVEL BIT(1)
#define GPIO10_LEVEL BIT(2)
#define GPIO11_LEVEL BIT(3)
#define GPIO12_LEVEL BIT(4)
#define GPIO13_LEVEL BIT(5)
#define GPIO14_LEVEL BIT(6)
#define GPIO15_LEVEL BIT(7)
/* Bit definitions for the GPIO0_TO_7_OUT register */
#define GPIO0_DRIVE_LEVEL BIT(0)
#define GPIO1_DRIVE_LEVEL BIT(1)
#define GPIO2_DRIVE_LEVEL BIT(2)
#define GPIO3_DRIVE_LEVEL BIT(3)
#define GPIO4_DRIVE_LEVEL BIT(4)
#define GPIO5_DRIVE_LEVEL BIT(5)
#define GPIO6_DRIVE_LEVEL BIT(6)
#define GPIO7_DRIVE_LEVEL BIT(7)
/* Bit definitions for the GPIO8_TO_15_OUT register */
#define GPIO8_DRIVE_LEVEL BIT(0)
#define GPIO9_DRIVE_LEVEL BIT(1)
#define GPIO10_DRIVE_LEVEL BIT(2)
#define GPIO11_DRIVE_LEVEL BIT(3)
#define GPIO12_DRIVE_LEVEL BIT(4)
#define GPIO13_DRIVE_LEVEL BIT(5)
#define GPIO14_DRIVE_LEVEL BIT(6)
#define GPIO15_DRIVE_LEVEL BIT(7)
/* Bit definitions for the DPLL_TOD_SYNC_CFG register */
#define TOD_SYNC_SOURCE_SHIFT (1)
#define TOD_SYNC_SOURCE_MASK (0x3)
#define TOD_SYNC_EN BIT(0)
/* Bit definitions for the DPLL_MODE register */
#define WRITE_TIMER_MODE BIT(6)
#define PLL_MODE_SHIFT (3)
#define PLL_MODE_MASK (0x7)
#define STATE_MODE_SHIFT (0)
#define STATE_MODE_MASK (0x7)
/* Bit definitions for the GPIO_CFG_GBL register */
#define SUPPLY_MODE_SHIFT (0)
#define SUPPLY_MODE_MASK (0x3)
/* Bit definitions for the GPIO_DCO_INC_DEC register */
#define INCDEC_DPLL_INDEX_SHIFT (0)
#define INCDEC_DPLL_INDEX_MASK (0x7)
/* Bit definitions for the GPIO_OUT_CTRL_0 register */
#define CTRL_OUT_0 BIT(0)
#define CTRL_OUT_1 BIT(1)
#define CTRL_OUT_2 BIT(2)
#define CTRL_OUT_3 BIT(3)
#define CTRL_OUT_4 BIT(4)
#define CTRL_OUT_5 BIT(5)
#define CTRL_OUT_6 BIT(6)
#define CTRL_OUT_7 BIT(7)
/* Bit definitions for the GPIO_OUT_CTRL_1 register */
#define CTRL_OUT_8 BIT(0)
#define CTRL_OUT_9 BIT(1)
#define CTRL_OUT_10 BIT(2)
#define CTRL_OUT_11 BIT(3)
#define CTRL_OUT_12 BIT(4)
#define CTRL_OUT_13 BIT(5)
#define CTRL_OUT_14 BIT(6)
#define CTRL_OUT_15 BIT(7)
/* Bit definitions for the GPIO_TOD_TRIG register */
#define TOD_TRIG_0 BIT(0)
#define TOD_TRIG_1 BIT(1)
#define TOD_TRIG_2 BIT(2)
#define TOD_TRIG_3 BIT(3)
/* Bit definitions for the GPIO_DPLL_INDICATOR register */
#define IND_DPLL_INDEX_SHIFT (0)
#define IND_DPLL_INDEX_MASK (0x7)
/* Bit definitions for the GPIO_LOS_INDICATOR register */
#define REFMON_INDEX_SHIFT (0)
#define REFMON_INDEX_MASK (0xf)
/* Active level of LOS indicator, 0=low 1=high */
#define ACTIVE_LEVEL BIT(4)
/* Bit definitions for the GPIO_REF_INPUT_DSQ_0 register */
#define DSQ_INP_0 BIT(0)
#define DSQ_INP_1 BIT(1)
#define DSQ_INP_2 BIT(2)
#define DSQ_INP_3 BIT(3)
#define DSQ_INP_4 BIT(4)
#define DSQ_INP_5 BIT(5)
#define DSQ_INP_6 BIT(6)
#define DSQ_INP_7 BIT(7)
/* Bit definitions for the GPIO_REF_INPUT_DSQ_1 register */
#define DSQ_INP_8 BIT(0)
#define DSQ_INP_9 BIT(1)
#define DSQ_INP_10 BIT(2)
#define DSQ_INP_11 BIT(3)
#define DSQ_INP_12 BIT(4)
#define DSQ_INP_13 BIT(5)
#define DSQ_INP_14 BIT(6)
#define DSQ_INP_15 BIT(7)
/* Bit definitions for the GPIO_REF_INPUT_DSQ_2 register */
#define DSQ_DPLL_0 BIT(0)
#define DSQ_DPLL_1 BIT(1)
#define DSQ_DPLL_2 BIT(2)
#define DSQ_DPLL_3 BIT(3)
#define DSQ_DPLL_4 BIT(4)
#define DSQ_DPLL_5 BIT(5)
#define DSQ_DPLL_6 BIT(6)
#define DSQ_DPLL_7 BIT(7)
/* Bit definitions for the GPIO_REF_INPUT_DSQ_3 register */
#define DSQ_DPLL_SYS BIT(0)
#define GPIO_DSQ_LEVEL BIT(1)
/* Bit definitions for the GPIO_TOD_NOTIFICATION_CFG register */
#define DPLL_TOD_SHIFT (0)
#define DPLL_TOD_MASK (0x3)
#define TOD_READ_SECONDARY BIT(2)
#define GPIO_ASSERT_LEVEL BIT(3)
/* Bit definitions for the GPIO_CTRL register */
#define GPIO_FUNCTION_EN BIT(0)
#define GPIO_CMOS_OD_MODE BIT(1)
#define GPIO_CONTROL_DIR BIT(2)
#define GPIO_PU_PD_MODE BIT(3)
#define GPIO_FUNCTION_SHIFT (4)
#define GPIO_FUNCTION_MASK (0xf)
/* Bit definitions for the OUT_CTRL_1 register */
#define OUT_SYNC_DISABLE BIT(7)
#define SQUELCH_VALUE BIT(6)
#define SQUELCH_DISABLE BIT(5)
#define PAD_VDDO_SHIFT (2)
#define PAD_VDDO_MASK (0x7)
#define PAD_CMOSDRV_SHIFT (0)
#define PAD_CMOSDRV_MASK (0x3)
/* Bit definitions for the TOD_CFG register */
#define TOD_EVEN_PPS_MODE BIT(2)
#define TOD_OUT_SYNC_ENABLE BIT(1)
#define TOD_ENABLE BIT(0)
/* Bit definitions for the TOD_WRITE_SELECT_CFG_0 register */
#define WR_PWM_DECODER_INDEX_SHIFT (4)
#define WR_PWM_DECODER_INDEX_MASK (0xf)
#define WR_REF_INDEX_SHIFT (0)
#define WR_REF_INDEX_MASK (0xf)
/* Bit definitions for the TOD_WRITE_CMD register */
#define TOD_WRITE_SELECTION_SHIFT (0)
#define TOD_WRITE_SELECTION_MASK (0xf)
/* Bit definitions for the TOD_READ_PRIMARY_SEL_CFG_0 register */
#define RD_PWM_DECODER_INDEX_SHIFT (4)
#define RD_PWM_DECODER_INDEX_MASK (0xf)
#define RD_REF_INDEX_SHIFT (0)
#define RD_REF_INDEX_MASK (0xf)
/* Bit definitions for the TOD_READ_PRIMARY_CMD register */
#define TOD_READ_TRIGGER_MODE BIT(4)
#define TOD_READ_TRIGGER_SHIFT (0)
#define TOD_READ_TRIGGER_MASK (0xf)
#endif

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drivers/ptp/ptp_clockmatrix.c Normal file
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drivers/ptp/ptp_clockmatrix.h Normal file
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/* 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 <linux/ktime.h>
#include "idt8a340_reg.h"
#define FW_FILENAME "idtcm.bin"
#define MAX_PHC_PLL 4
#define PLL_MASK_ADDR (0xFFA5)
#define DEFAULT_PLL_MASK (0x04)
#define SET_U16_LSB(orig, val8) (orig = (0xff00 & (orig)) | (val8))
#define SET_U16_MSB(orig, val8) (orig = (0x00ff & (orig)) | (val8 << 8))
#define OUTPUT_MASK_PLL0_ADDR (0xFFB0)
#define OUTPUT_MASK_PLL1_ADDR (0xFFB2)
#define OUTPUT_MASK_PLL2_ADDR (0xFFB4)
#define OUTPUT_MASK_PLL3_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 POST_SM_RESET_DELAY_MS (3000)
#define PHASE_PULL_IN_THRESHOLD_NS (150000)
#define TOD_WRITE_OVERHEAD_COUNT_MAX (5)
#define TOD_BYTE_COUNT (11)
/* 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_MAX = PLL_MODE_PHASE_MEASUREMENT,
};
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,
};
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;
u16 output_mask;
};
struct idtcm {
struct idtcm_channel channel[MAX_PHC_PLL];
struct i2c_client *client;
u8 page_offset;
u8 pll_mask;
/* 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 */