9abd5f0555
This patch adds a common clock driver for Silicon Labs Si5351a/b/c i2c programmable clock generators. Currently, the driver does not support VXCO feature of si5351b. Passing platform_data or DT bindings selectively allows to overwrite stored Si5351 configuration which is very helpful for clock generators with empty eeprom configuration. Corresponding device tree binding documentation is also added. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Daniel Mack <zonque@gmail.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Michal Bachraty <michal.bachraty@streamunlimited.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
155 lines
5.3 KiB
C
155 lines
5.3 KiB
C
/*
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* clk-si5351.h: Silicon Laboratories Si5351A/B/C I2C Clock Generator
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*
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* Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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* Rabeeh Khoury <rabeeh@solid-run.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _CLK_SI5351_H_
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#define _CLK_SI5351_H_
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#define SI5351_BUS_BASE_ADDR 0x60
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#define SI5351_PLL_VCO_MIN 600000000
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#define SI5351_PLL_VCO_MAX 900000000
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#define SI5351_MULTISYNTH_MIN_FREQ 1000000
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#define SI5351_MULTISYNTH_DIVBY4_FREQ 150000000
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#define SI5351_MULTISYNTH_MAX_FREQ 160000000
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#define SI5351_MULTISYNTH67_MAX_FREQ SI5351_MULTISYNTH_DIVBY4_FREQ
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#define SI5351_CLKOUT_MIN_FREQ 8000
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#define SI5351_CLKOUT_MAX_FREQ SI5351_MULTISYNTH_MAX_FREQ
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#define SI5351_CLKOUT67_MAX_FREQ SI5351_MULTISYNTH67_MAX_FREQ
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#define SI5351_PLL_A_MIN 15
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#define SI5351_PLL_A_MAX 90
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#define SI5351_PLL_B_MAX (SI5351_PLL_C_MAX-1)
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#define SI5351_PLL_C_MAX 1048575
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#define SI5351_MULTISYNTH_A_MIN 6
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#define SI5351_MULTISYNTH_A_MAX 1800
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#define SI5351_MULTISYNTH67_A_MAX 254
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#define SI5351_MULTISYNTH_B_MAX (SI5351_MULTISYNTH_C_MAX-1)
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#define SI5351_MULTISYNTH_C_MAX 1048575
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#define SI5351_MULTISYNTH_P1_MAX ((1<<18)-1)
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#define SI5351_MULTISYNTH_P2_MAX ((1<<20)-1)
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#define SI5351_MULTISYNTH_P3_MAX ((1<<20)-1)
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#define SI5351_DEVICE_STATUS 0
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#define SI5351_INTERRUPT_STATUS 1
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#define SI5351_INTERRUPT_MASK 2
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#define SI5351_STATUS_SYS_INIT (1<<7)
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#define SI5351_STATUS_LOL_B (1<<6)
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#define SI5351_STATUS_LOL_A (1<<5)
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#define SI5351_STATUS_LOS (1<<4)
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#define SI5351_OUTPUT_ENABLE_CTRL 3
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#define SI5351_OEB_PIN_ENABLE_CTRL 9
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#define SI5351_PLL_INPUT_SOURCE 15
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#define SI5351_CLKIN_DIV_MASK (3<<6)
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#define SI5351_CLKIN_DIV_1 (0<<6)
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#define SI5351_CLKIN_DIV_2 (1<<6)
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#define SI5351_CLKIN_DIV_4 (2<<6)
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#define SI5351_CLKIN_DIV_8 (3<<6)
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#define SI5351_PLLB_SOURCE (1<<3)
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#define SI5351_PLLA_SOURCE (1<<2)
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#define SI5351_CLK0_CTRL 16
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#define SI5351_CLK1_CTRL 17
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#define SI5351_CLK2_CTRL 18
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#define SI5351_CLK3_CTRL 19
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#define SI5351_CLK4_CTRL 20
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#define SI5351_CLK5_CTRL 21
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#define SI5351_CLK6_CTRL 22
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#define SI5351_CLK7_CTRL 23
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#define SI5351_CLK_POWERDOWN (1<<7)
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#define SI5351_CLK_INTEGER_MODE (1<<6)
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#define SI5351_CLK_PLL_SELECT (1<<5)
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#define SI5351_CLK_INVERT (1<<4)
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#define SI5351_CLK_INPUT_MASK (3<<2)
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#define SI5351_CLK_INPUT_XTAL (0<<2)
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#define SI5351_CLK_INPUT_CLKIN (1<<2)
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#define SI5351_CLK_INPUT_MULTISYNTH_0_4 (2<<2)
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#define SI5351_CLK_INPUT_MULTISYNTH_N (3<<2)
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#define SI5351_CLK_DRIVE_STRENGTH_MASK (3<<0)
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#define SI5351_CLK_DRIVE_STRENGTH_2MA (0<<0)
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#define SI5351_CLK_DRIVE_STRENGTH_4MA (1<<0)
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#define SI5351_CLK_DRIVE_STRENGTH_6MA (2<<0)
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#define SI5351_CLK_DRIVE_STRENGTH_8MA (3<<0)
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#define SI5351_CLK3_0_DISABLE_STATE 24
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#define SI5351_CLK7_4_DISABLE_STATE 25
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#define SI5351_CLK_DISABLE_STATE_LOW 0
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#define SI5351_CLK_DISABLE_STATE_HIGH 1
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#define SI5351_CLK_DISABLE_STATE_FLOAT 2
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#define SI5351_CLK_DISABLE_STATE_NEVER 3
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#define SI5351_PARAMETERS_LENGTH 8
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#define SI5351_PLLA_PARAMETERS 26
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#define SI5351_PLLB_PARAMETERS 34
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#define SI5351_CLK0_PARAMETERS 42
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#define SI5351_CLK1_PARAMETERS 50
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#define SI5351_CLK2_PARAMETERS 58
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#define SI5351_CLK3_PARAMETERS 66
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#define SI5351_CLK4_PARAMETERS 74
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#define SI5351_CLK5_PARAMETERS 82
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#define SI5351_CLK6_PARAMETERS 90
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#define SI5351_CLK7_PARAMETERS 91
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#define SI5351_CLK6_7_OUTPUT_DIVIDER 92
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#define SI5351_OUTPUT_CLK_DIV_MASK (7 << 4)
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#define SI5351_OUTPUT_CLK6_DIV_MASK (7 << 0)
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#define SI5351_OUTPUT_CLK_DIV_SHIFT 4
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#define SI5351_OUTPUT_CLK_DIV6_SHIFT 0
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#define SI5351_OUTPUT_CLK_DIV_1 0
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#define SI5351_OUTPUT_CLK_DIV_2 1
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#define SI5351_OUTPUT_CLK_DIV_4 2
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#define SI5351_OUTPUT_CLK_DIV_8 3
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#define SI5351_OUTPUT_CLK_DIV_16 4
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#define SI5351_OUTPUT_CLK_DIV_32 5
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#define SI5351_OUTPUT_CLK_DIV_64 6
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#define SI5351_OUTPUT_CLK_DIV_128 7
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#define SI5351_OUTPUT_CLK_DIVBY4 (3<<2)
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#define SI5351_SSC_PARAM0 149
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#define SI5351_SSC_PARAM1 150
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#define SI5351_SSC_PARAM2 151
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#define SI5351_SSC_PARAM3 152
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#define SI5351_SSC_PARAM4 153
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#define SI5351_SSC_PARAM5 154
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#define SI5351_SSC_PARAM6 155
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#define SI5351_SSC_PARAM7 156
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#define SI5351_SSC_PARAM8 157
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#define SI5351_SSC_PARAM9 158
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#define SI5351_SSC_PARAM10 159
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#define SI5351_SSC_PARAM11 160
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#define SI5351_SSC_PARAM12 161
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#define SI5351_VXCO_PARAMETERS_LOW 162
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#define SI5351_VXCO_PARAMETERS_MID 163
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#define SI5351_VXCO_PARAMETERS_HIGH 164
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#define SI5351_CLK0_PHASE_OFFSET 165
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#define SI5351_CLK1_PHASE_OFFSET 166
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#define SI5351_CLK2_PHASE_OFFSET 167
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#define SI5351_CLK3_PHASE_OFFSET 168
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#define SI5351_CLK4_PHASE_OFFSET 169
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#define SI5351_CLK5_PHASE_OFFSET 170
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#define SI5351_PLL_RESET 177
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#define SI5351_PLL_RESET_B (1<<7)
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#define SI5351_PLL_RESET_A (1<<5)
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#define SI5351_CRYSTAL_LOAD 183
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#define SI5351_CRYSTAL_LOAD_MASK (3<<6)
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#define SI5351_CRYSTAL_LOAD_6PF (1<<6)
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#define SI5351_CRYSTAL_LOAD_8PF (2<<6)
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#define SI5351_CRYSTAL_LOAD_10PF (3<<6)
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#define SI5351_FANOUT_ENABLE 187
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#define SI5351_CLKIN_ENABLE (1<<7)
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#define SI5351_XTAL_ENABLE (1<<6)
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#define SI5351_MULTISYNTH_ENABLE (1<<4)
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#endif
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