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1101 lines
29 KiB
C
1101 lines
29 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for IDT Versaclock 5/6
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*
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* Derived from code Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
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*/
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#include <common.h>
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#include <clk.h>
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#include <clk-uclass.h>
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#include <dm.h>
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#include <errno.h>
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#include <i2c.h>
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#include <dm/device_compat.h>
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#include <log.h>
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#include <linux/clk-provider.h>
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#include <linux/kernel.h>
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#include <linux/math64.h>
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#include <dt-bindings/clk/versaclock.h>
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/* VersaClock5 registers */
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#define VC5_OTP_CONTROL 0x00
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/* Factory-reserved register block */
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#define VC5_RSVD_DEVICE_ID 0x01
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#define VC5_RSVD_ADC_GAIN_7_0 0x02
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#define VC5_RSVD_ADC_GAIN_15_8 0x03
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#define VC5_RSVD_ADC_OFFSET_7_0 0x04
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#define VC5_RSVD_ADC_OFFSET_15_8 0x05
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#define VC5_RSVD_TEMPY 0x06
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#define VC5_RSVD_OFFSET_TBIN 0x07
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#define VC5_RSVD_GAIN 0x08
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#define VC5_RSVD_TEST_NP 0x09
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#define VC5_RSVD_UNUSED 0x0a
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#define VC5_RSVD_BANDGAP_TRIM_UP 0x0b
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#define VC5_RSVD_BANDGAP_TRIM_DN 0x0c
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#define VC5_RSVD_CLK_R_12_CLK_AMP_4 0x0d
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#define VC5_RSVD_CLK_R_34_CLK_AMP_4 0x0e
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#define VC5_RSVD_CLK_AMP_123 0x0f
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/* Configuration register block */
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#define VC5_PRIM_SRC_SHDN 0x10
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#define VC5_PRIM_SRC_SHDN_EN_XTAL BIT(7)
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#define VC5_PRIM_SRC_SHDN_EN_CLKIN BIT(6)
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#define VC5_PRIM_SRC_SHDN_EN_DOUBLE_XTAL_FREQ BIT(3)
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#define VC5_PRIM_SRC_SHDN_SP BIT(1)
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#define VC5_PRIM_SRC_SHDN_EN_GBL_SHDN BIT(0)
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#define VC5_VCO_BAND 0x11
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#define VC5_XTAL_X1_LOAD_CAP 0x12
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#define VC5_XTAL_X2_LOAD_CAP 0x13
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#define VC5_REF_DIVIDER 0x15
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#define VC5_REF_DIVIDER_SEL_PREDIV2 BIT(7)
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#define VC5_REF_DIVIDER_REF_DIV(n) ((n) & 0x3f)
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#define VC5_VCO_CTRL_AND_PREDIV 0x16
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#define VC5_VCO_CTRL_AND_PREDIV_BYPASS_PREDIV BIT(7)
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#define VC5_FEEDBACK_INT_DIV 0x17
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#define VC5_FEEDBACK_INT_DIV_BITS 0x18
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#define VC5_FEEDBACK_FRAC_DIV(n) (0x19 + (n))
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#define VC5_RC_CONTROL0 0x1e
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#define VC5_RC_CONTROL1 0x1f
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/* Register 0x20 is factory reserved */
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/* Output divider control for divider 1,2,3,4 */
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#define VC5_OUT_DIV_CONTROL(idx) (0x21 + ((idx) * 0x10))
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#define VC5_OUT_DIV_CONTROL_RESET BIT(7)
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#define VC5_OUT_DIV_CONTROL_SELB_NORM BIT(3)
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#define VC5_OUT_DIV_CONTROL_SEL_EXT BIT(2)
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#define VC5_OUT_DIV_CONTROL_INT_MODE BIT(1)
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#define VC5_OUT_DIV_CONTROL_EN_FOD BIT(0)
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#define VC5_OUT_DIV_FRAC(idx, n) (0x22 + ((idx) * 0x10) + (n))
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#define VC5_OUT_DIV_FRAC4_OD_SCEE BIT(1)
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#define VC5_OUT_DIV_STEP_SPREAD(idx, n) (0x26 + ((idx) * 0x10) + (n))
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#define VC5_OUT_DIV_SPREAD_MOD(idx, n) (0x29 + ((idx) * 0x10) + (n))
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#define VC5_OUT_DIV_SKEW_INT(idx, n) (0x2b + ((idx) * 0x10) + (n))
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#define VC5_OUT_DIV_INT(idx, n) (0x2d + ((idx) * 0x10) + (n))
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#define VC5_OUT_DIV_SKEW_FRAC(idx) (0x2f + ((idx) * 0x10))
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/* Registers 0x30, 0x40, 0x50 are factory reserved */
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/* Clock control register for clock 1,2 */
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#define VC5_CLK_OUTPUT_CFG(idx, n) (0x60 + ((idx) * 0x2) + (n))
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#define VC5_CLK_OUTPUT_CFG0_CFG_SHIFT 5
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#define VC5_CLK_OUTPUT_CFG0_CFG_MASK GENMASK(7, VC5_CLK_OUTPUT_CFG0_CFG_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_CFG_LVPECL (VC5_LVPECL)
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#define VC5_CLK_OUTPUT_CFG0_CFG_CMOS (VC5_CMOS)
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#define VC5_CLK_OUTPUT_CFG0_CFG_HCSL33 (VC5_HCSL33)
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#define VC5_CLK_OUTPUT_CFG0_CFG_LVDS (VC5_LVDS)
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#define VC5_CLK_OUTPUT_CFG0_CFG_CMOS2 (VC5_CMOS2)
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#define VC5_CLK_OUTPUT_CFG0_CFG_CMOSD (VC5_CMOSD)
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#define VC5_CLK_OUTPUT_CFG0_CFG_HCSL25 (VC5_HCSL25)
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#define VC5_CLK_OUTPUT_CFG0_PWR_SHIFT 3
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#define VC5_CLK_OUTPUT_CFG0_PWR_MASK GENMASK(4, VC5_CLK_OUTPUT_CFG0_PWR_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_PWR_18 (0 << VC5_CLK_OUTPUT_CFG0_PWR_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_PWR_25 (2 << VC5_CLK_OUTPUT_CFG0_PWR_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_PWR_33 (3 << VC5_CLK_OUTPUT_CFG0_PWR_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_SLEW_SHIFT 0
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#define VC5_CLK_OUTPUT_CFG0_SLEW_MASK GENMASK(1, VC5_CLK_OUTPUT_CFG0_SLEW_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_SLEW_80 (0 << VC5_CLK_OUTPUT_CFG0_SLEW_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_SLEW_85 (1 << VC5_CLK_OUTPUT_CFG0_SLEW_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_SLEW_90 (2 << VC5_CLK_OUTPUT_CFG0_SLEW_SHIFT)
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#define VC5_CLK_OUTPUT_CFG0_SLEW_100 (3 << VC5_CLK_OUTPUT_CFG0_SLEW_SHIFT)
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#define VC5_CLK_OUTPUT_CFG1_EN_CLKBUF BIT(0)
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#define VC5_CLK_OE_SHDN 0x68
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#define VC5_CLK_OS_SHDN 0x69
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#define VC5_GLOBAL_REGISTER 0x76
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#define VC5_GLOBAL_REGISTER_GLOBAL_RESET BIT(5)
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/* PLL/VCO runs between 2.5 GHz and 3.0 GHz */
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#define VC5_PLL_VCO_MIN 2500000000UL
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#define VC5_PLL_VCO_MAX 3000000000UL
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/* VC5 Input mux settings */
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#define VC5_MUX_IN_XIN BIT(0)
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#define VC5_MUX_IN_CLKIN BIT(1)
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/* Maximum number of clk_out supported by this driver */
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#define VC5_MAX_CLK_OUT_NUM 5
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/* Maximum number of FODs supported by this driver */
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#define VC5_MAX_FOD_NUM 4
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/* flags to describe chip features */
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/* chip has built-in oscilator */
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#define VC5_HAS_INTERNAL_XTAL BIT(0)
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/* chip has PFD requency doubler */
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#define VC5_HAS_PFD_FREQ_DBL BIT(1)
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/* Supported IDT VC5 models. */
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enum vc5_model {
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IDT_VC5_5P49V5923,
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IDT_VC5_5P49V5925,
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IDT_VC5_5P49V5933,
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IDT_VC5_5P49V5935,
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IDT_VC6_5P49V6901,
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IDT_VC6_5P49V6965,
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};
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/* Structure to describe features of a particular VC5 model */
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struct vc5_chip_info {
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const enum vc5_model model;
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const unsigned int clk_fod_cnt;
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const unsigned int clk_out_cnt;
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const u32 flags;
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};
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struct vc5_driver_data;
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struct vc5_hw_data {
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struct clk hw;
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struct vc5_driver_data *vc5;
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u32 div_int;
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u32 div_frc;
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unsigned int num;
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};
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struct vc5_out_data {
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struct clk hw;
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struct vc5_driver_data *vc5;
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unsigned int num;
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unsigned int clk_output_cfg0;
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unsigned int clk_output_cfg0_mask;
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};
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struct vc5_driver_data {
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struct udevice *i2c;
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const struct vc5_chip_info *chip_info;
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struct clk *pin_xin;
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struct clk *pin_clkin;
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unsigned char clk_mux_ins;
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struct clk clk_mux;
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struct clk clk_mul;
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struct clk clk_pfd;
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struct vc5_hw_data clk_pll;
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struct vc5_hw_data clk_fod[VC5_MAX_FOD_NUM];
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struct vc5_out_data clk_out[VC5_MAX_CLK_OUT_NUM];
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};
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static const struct vc5_chip_info idt_5p49v5923_info = {
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.model = IDT_VC5_5P49V5923,
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.clk_fod_cnt = 2,
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.clk_out_cnt = 3,
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.flags = 0,
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};
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static const struct vc5_chip_info idt_5p49v5925_info = {
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.model = IDT_VC5_5P49V5925,
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.clk_fod_cnt = 4,
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.clk_out_cnt = 5,
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.flags = 0,
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};
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static const struct vc5_chip_info idt_5p49v5933_info = {
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.model = IDT_VC5_5P49V5933,
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.clk_fod_cnt = 2,
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.clk_out_cnt = 3,
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.flags = VC5_HAS_INTERNAL_XTAL,
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};
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static const struct vc5_chip_info idt_5p49v5935_info = {
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.model = IDT_VC5_5P49V5935,
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.clk_fod_cnt = 4,
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.clk_out_cnt = 5,
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.flags = VC5_HAS_INTERNAL_XTAL,
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};
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static const struct vc5_chip_info idt_5p49v6901_info = {
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.model = IDT_VC6_5P49V6901,
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.clk_fod_cnt = 4,
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.clk_out_cnt = 5,
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.flags = VC5_HAS_PFD_FREQ_DBL,
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};
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static const struct vc5_chip_info idt_5p49v6965_info = {
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.model = IDT_VC6_5P49V6965,
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.clk_fod_cnt = 4,
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.clk_out_cnt = 5,
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.flags = 0,
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};
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static int vc5_update_bits(struct udevice *dev, unsigned int reg, unsigned int mask,
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unsigned int src)
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{
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int ret;
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unsigned char cache;
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ret = dm_i2c_read(dev, reg, &cache, 1);
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if (ret < 0)
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return ret;
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cache &= ~mask;
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cache |= mask & src;
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ret = dm_i2c_write(dev, reg, (uchar *)&cache, 1);
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return ret;
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}
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static unsigned long vc5_mux_get_rate(struct clk *hw)
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{
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return clk_get_rate(clk_get_parent(hw));
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}
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static int vc5_mux_set_parent(struct clk *hw, unsigned char index)
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{
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struct vc5_driver_data *vc5 = container_of(hw, struct vc5_driver_data, clk_mux);
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const u8 mask = VC5_PRIM_SRC_SHDN_EN_XTAL | VC5_PRIM_SRC_SHDN_EN_CLKIN;
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u8 src;
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if (index > 1 || !vc5->clk_mux_ins)
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return -EINVAL;
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if (vc5->clk_mux_ins == (VC5_MUX_IN_CLKIN | VC5_MUX_IN_XIN)) {
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if (index == 0)
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src = VC5_PRIM_SRC_SHDN_EN_XTAL;
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if (index == 1)
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src = VC5_PRIM_SRC_SHDN_EN_CLKIN;
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} else {
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if (index != 0)
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return -EINVAL;
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if (vc5->clk_mux_ins == VC5_MUX_IN_XIN)
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src = VC5_PRIM_SRC_SHDN_EN_XTAL;
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else if (vc5->clk_mux_ins == VC5_MUX_IN_CLKIN)
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src = VC5_PRIM_SRC_SHDN_EN_CLKIN;
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else /* Invalid; should have been caught by vc5_probe() */
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return -EINVAL;
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}
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return vc5_update_bits(vc5->i2c, VC5_PRIM_SRC_SHDN, mask, src);
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}
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static const struct clk_ops vc5_mux_ops = {
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.get_rate = vc5_mux_get_rate,
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};
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static unsigned long vc5_pfd_round_rate(struct clk *hw, unsigned long rate)
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{
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struct clk *clk_parent = clk_get_parent(hw);
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unsigned long parent_rate = clk_get_rate(clk_parent);
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unsigned long idiv;
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/* PLL cannot operate with input clock above 50 MHz. */
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if (rate > 50000000)
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return -EINVAL;
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/* CLKIN within range of PLL input, feed directly to PLL. */
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if (parent_rate <= 50000000)
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return parent_rate;
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idiv = DIV_ROUND_UP(parent_rate, rate);
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if (idiv > 127)
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return -EINVAL;
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return parent_rate / idiv;
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}
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static unsigned long vc5_pfd_recalc_rate(struct clk *hw)
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{
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struct vc5_driver_data *vc5 =
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container_of(hw, struct vc5_driver_data, clk_pfd);
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unsigned int prediv, div;
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struct clk *clk_parent = clk_get_parent(hw);
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unsigned long parent_rate = clk_get_rate(clk_parent);
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dm_i2c_read(vc5->i2c, VC5_VCO_CTRL_AND_PREDIV, (uchar *)&prediv, 1);
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/* The bypass_prediv is set, PLL fed from Ref_in directly. */
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if (prediv & VC5_VCO_CTRL_AND_PREDIV_BYPASS_PREDIV)
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return parent_rate;
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dm_i2c_read(vc5->i2c, VC5_REF_DIVIDER, (uchar *)&div, 1);
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/* The Sel_prediv2 is set, PLL fed from prediv2 (Ref_in / 2) */
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if (div & VC5_REF_DIVIDER_SEL_PREDIV2)
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return parent_rate / 2;
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else
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return parent_rate / VC5_REF_DIVIDER_REF_DIV(div);
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}
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static unsigned long vc5_pfd_set_rate(struct clk *hw, unsigned long rate)
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{
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struct vc5_driver_data *vc5 =
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container_of(hw, struct vc5_driver_data, clk_pfd);
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unsigned long idiv;
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u8 div;
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struct clk *clk_parent = clk_get_parent(hw);
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unsigned long parent_rate = clk_get_rate(clk_parent);
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/* CLKIN within range of PLL input, feed directly to PLL. */
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if (parent_rate <= 50000000) {
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vc5_update_bits(vc5->i2c, VC5_VCO_CTRL_AND_PREDIV,
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VC5_VCO_CTRL_AND_PREDIV_BYPASS_PREDIV,
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VC5_VCO_CTRL_AND_PREDIV_BYPASS_PREDIV);
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vc5_update_bits(vc5->i2c, VC5_REF_DIVIDER, 0xff, 0x00);
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return 0;
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}
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idiv = DIV_ROUND_UP(parent_rate, rate);
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/* We have dedicated div-2 predivider. */
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if (idiv == 2)
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div = VC5_REF_DIVIDER_SEL_PREDIV2;
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else
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div = VC5_REF_DIVIDER_REF_DIV(idiv);
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vc5_update_bits(vc5->i2c, VC5_REF_DIVIDER, 0xff, div);
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vc5_update_bits(vc5->i2c, VC5_VCO_CTRL_AND_PREDIV,
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VC5_VCO_CTRL_AND_PREDIV_BYPASS_PREDIV, 0);
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return 0;
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}
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static const struct clk_ops vc5_pfd_ops = {
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|
.round_rate = vc5_pfd_round_rate,
|
||
|
.get_rate = vc5_pfd_recalc_rate,
|
||
|
.set_rate = vc5_pfd_set_rate,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* VersaClock5 PLL/VCO
|
||
|
*/
|
||
|
static unsigned long vc5_pll_recalc_rate(struct clk *hw)
|
||
|
{
|
||
|
struct vc5_hw_data *hwdata = container_of(hw, struct vc5_hw_data, hw);
|
||
|
struct vc5_driver_data *vc = hwdata->vc5;
|
||
|
struct clk *clk_parent = clk_get_parent(hw);
|
||
|
unsigned long parent_rate = clk_get_rate(clk_parent);
|
||
|
u32 div_int, div_frc;
|
||
|
u8 fb[5];
|
||
|
|
||
|
dm_i2c_read(vc->i2c, VC5_FEEDBACK_INT_DIV, fb, 5);
|
||
|
|
||
|
div_int = (fb[0] << 4) | (fb[1] >> 4);
|
||
|
div_frc = (fb[2] << 16) | (fb[3] << 8) | fb[4];
|
||
|
|
||
|
/* The PLL divider has 12 integer bits and 24 fractional bits */
|
||
|
return (parent_rate * div_int) + ((parent_rate * div_frc) >> 24);
|
||
|
}
|
||
|
|
||
|
static unsigned long vc5_pll_round_rate(struct clk *hw, unsigned long rate)
|
||
|
{
|
||
|
struct clk *clk_parent = clk_get_parent(hw);
|
||
|
unsigned long parent_rate = clk_get_rate(clk_parent);
|
||
|
struct vc5_hw_data *hwdata = container_of(hw, struct vc5_hw_data, hw);
|
||
|
u32 div_int;
|
||
|
u64 div_frc;
|
||
|
|
||
|
if (rate < VC5_PLL_VCO_MIN)
|
||
|
rate = VC5_PLL_VCO_MIN;
|
||
|
if (rate > VC5_PLL_VCO_MAX)
|
||
|
rate = VC5_PLL_VCO_MAX;
|
||
|
|
||
|
/* Determine integer part, which is 12 bit wide */
|
||
|
div_int = rate / parent_rate;
|
||
|
if (div_int > 0xfff)
|
||
|
rate = parent_rate * 0xfff;
|
||
|
|
||
|
/* Determine best fractional part, which is 24 bit wide */
|
||
|
div_frc = rate % parent_rate;
|
||
|
div_frc *= BIT(24) - 1;
|
||
|
do_div(div_frc, parent_rate);
|
||
|
|
||
|
hwdata->div_int = div_int;
|
||
|
hwdata->div_frc = (u32)div_frc;
|
||
|
|
||
|
return (parent_rate * div_int) + ((parent_rate * div_frc) >> 24);
|
||
|
}
|
||
|
|
||
|
static unsigned long vc5_pll_set_rate(struct clk *hw, unsigned long rate)
|
||
|
{
|
||
|
struct vc5_hw_data *hwdata = container_of(hw, struct vc5_hw_data, hw);
|
||
|
struct vc5_driver_data *vc5 = hwdata->vc5;
|
||
|
u8 fb[5];
|
||
|
|
||
|
fb[0] = hwdata->div_int >> 4;
|
||
|
fb[1] = hwdata->div_int << 4;
|
||
|
fb[2] = hwdata->div_frc >> 16;
|
||
|
fb[3] = hwdata->div_frc >> 8;
|
||
|
fb[4] = hwdata->div_frc;
|
||
|
|
||
|
return dm_i2c_write(vc5->i2c, VC5_FEEDBACK_INT_DIV, fb, 5);
|
||
|
}
|
||
|
|
||
|
static const struct clk_ops vc5_pll_ops = {
|
||
|
.round_rate = vc5_pll_round_rate,
|
||
|
.get_rate = vc5_pll_recalc_rate,
|
||
|
.set_rate = vc5_pll_set_rate,
|
||
|
};
|
||
|
|
||
|
static unsigned long vc5_fod_recalc_rate(struct clk *hw)
|
||
|
{
|
||
|
struct vc5_hw_data *hwdata = container_of(hw, struct vc5_hw_data, hw);
|
||
|
struct vc5_driver_data *vc = hwdata->vc5;
|
||
|
struct clk *parent = &vc->clk_pll.hw;
|
||
|
unsigned long parent_rate = vc5_pll_recalc_rate(parent);
|
||
|
|
||
|
/* VCO frequency is divided by two before entering FOD */
|
||
|
u32 f_in = parent_rate / 2;
|
||
|
u32 div_int, div_frc;
|
||
|
u8 od_int[2];
|
||
|
u8 od_frc[4];
|
||
|
|
||
|
dm_i2c_read(vc->i2c, VC5_OUT_DIV_INT(hwdata->num, 0), od_int, 2);
|
||
|
dm_i2c_read(vc->i2c, VC5_OUT_DIV_FRAC(hwdata->num, 0), od_frc, 4);
|
||
|
|
||
|
div_int = (od_int[0] << 4) | (od_int[1] >> 4);
|
||
|
div_frc = (od_frc[0] << 22) | (od_frc[1] << 14) |
|
||
|
(od_frc[2] << 6) | (od_frc[3] >> 2);
|
||
|
|
||
|
/* Avoid division by zero if the output is not configured. */
|
||
|
if (div_int == 0 && div_frc == 0)
|
||
|
return 0;
|
||
|
|
||
|
/* The PLL divider has 12 integer bits and 30 fractional bits */
|
||
|
return div64_u64((u64)f_in << 24ULL, ((u64)div_int << 24ULL) + div_frc);
|
||
|
}
|
||
|
|
||
|
static unsigned long vc5_fod_round_rate(struct clk *hw, unsigned long rate)
|
||
|
{
|
||
|
struct vc5_hw_data *hwdata = container_of(hw, struct vc5_hw_data, hw);
|
||
|
struct vc5_driver_data *vc = hwdata->vc5;
|
||
|
struct clk *parent = &vc->clk_pll.hw;
|
||
|
unsigned long parent_rate = vc5_pll_recalc_rate(parent);
|
||
|
|
||
|
/* VCO frequency is divided by two before entering FOD */
|
||
|
u32 f_in = parent_rate / 2;
|
||
|
u32 div_int;
|
||
|
u64 div_frc;
|
||
|
|
||
|
/* Determine integer part, which is 12 bit wide */
|
||
|
div_int = f_in / rate;
|
||
|
|
||
|
/*
|
||
|
* WARNING: The clock chip does not output signal if the integer part
|
||
|
* of the divider is 0xfff and fractional part is non-zero.
|
||
|
* Clamp the divider at 0xffe to keep the code simple.
|
||
|
*/
|
||
|
if (div_int > 0xffe) {
|
||
|
div_int = 0xffe;
|
||
|
rate = f_in / div_int;
|
||
|
}
|
||
|
|
||
|
/* Determine best fractional part, which is 30 bit wide */
|
||
|
div_frc = f_in % rate;
|
||
|
div_frc <<= 24;
|
||
|
do_div(div_frc, rate);
|
||
|
|
||
|
hwdata->div_int = div_int;
|
||
|
hwdata->div_frc = (u32)div_frc;
|
||
|
|
||
|
return div64_u64((u64)f_in << 24ULL, ((u64)div_int << 24ULL) + div_frc);
|
||
|
}
|
||
|
|
||
|
static unsigned long vc5_fod_set_rate(struct clk *hw, unsigned long rate)
|
||
|
{
|
||
|
struct vc5_hw_data *hwdata = container_of(hw, struct vc5_hw_data, hw);
|
||
|
struct vc5_driver_data *vc5 = hwdata->vc5;
|
||
|
|
||
|
u8 data[14] = {
|
||
|
hwdata->div_frc >> 22, hwdata->div_frc >> 14,
|
||
|
hwdata->div_frc >> 6, hwdata->div_frc << 2,
|
||
|
0, 0, 0, 0, 0,
|
||
|
0, 0,
|
||
|
hwdata->div_int >> 4, hwdata->div_int << 4,
|
||
|
0
|
||
|
};
|
||
|
|
||
|
dm_i2c_write(vc5->i2c, VC5_OUT_DIV_FRAC(hwdata->num, 0), data, 14);
|
||
|
|
||
|
/*
|
||
|
* Toggle magic bit in undocumented register for unknown reason.
|
||
|
* This is what the IDT timing commander tool does and the chip
|
||
|
* datasheet somewhat implies this is needed, but the register
|
||
|
* and the bit is not documented.
|
||
|
*/
|
||
|
vc5_update_bits(vc5->i2c, VC5_GLOBAL_REGISTER,
|
||
|
VC5_GLOBAL_REGISTER_GLOBAL_RESET, 0);
|
||
|
vc5_update_bits(vc5->i2c, VC5_GLOBAL_REGISTER,
|
||
|
VC5_GLOBAL_REGISTER_GLOBAL_RESET,
|
||
|
VC5_GLOBAL_REGISTER_GLOBAL_RESET);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static const struct clk_ops vc5_fod_ops = {
|
||
|
.round_rate = vc5_fod_round_rate,
|
||
|
.get_rate = vc5_fod_recalc_rate,
|
||
|
.set_rate = vc5_fod_set_rate,
|
||
|
};
|
||
|
|
||
|
static int vc5_clk_out_prepare(struct clk *hw)
|
||
|
{
|
||
|
struct udevice *dev;
|
||
|
struct vc5_driver_data *vc5;
|
||
|
struct vc5_out_data *hwdata;
|
||
|
|
||
|
const u8 mask = VC5_OUT_DIV_CONTROL_SELB_NORM |
|
||
|
VC5_OUT_DIV_CONTROL_SEL_EXT |
|
||
|
VC5_OUT_DIV_CONTROL_EN_FOD;
|
||
|
unsigned int src;
|
||
|
int ret;
|
||
|
|
||
|
uclass_get_device_by_name(UCLASS_CLK, clk_hw_get_name(hw), &dev);
|
||
|
vc5 = dev_get_priv(dev);
|
||
|
hwdata = &vc5->clk_out[hw->id];
|
||
|
|
||
|
/*
|
||
|
* If the input mux is disabled, enable it first and
|
||
|
* select source from matching FOD.
|
||
|
*/
|
||
|
|
||
|
dm_i2c_read(vc5->i2c, VC5_OUT_DIV_CONTROL(hwdata->num), (uchar *)&src, 1);
|
||
|
|
||
|
if ((src & mask) == 0) {
|
||
|
src = VC5_OUT_DIV_CONTROL_RESET | VC5_OUT_DIV_CONTROL_EN_FOD;
|
||
|
ret = vc5_update_bits(vc5->i2c,
|
||
|
VC5_OUT_DIV_CONTROL(hwdata->num),
|
||
|
mask | VC5_OUT_DIV_CONTROL_RESET, src);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/* Enable the clock buffer */
|
||
|
vc5_update_bits(vc5->i2c, VC5_CLK_OUTPUT_CFG(hwdata->num, 1),
|
||
|
VC5_CLK_OUTPUT_CFG1_EN_CLKBUF,
|
||
|
VC5_CLK_OUTPUT_CFG1_EN_CLKBUF);
|
||
|
if (hwdata->clk_output_cfg0_mask) {
|
||
|
vc5_update_bits(vc5->i2c, VC5_CLK_OUTPUT_CFG(hwdata->num, 0),
|
||
|
hwdata->clk_output_cfg0_mask,
|
||
|
hwdata->clk_output_cfg0);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vc5_clk_out_unprepare(struct clk *hw)
|
||
|
{
|
||
|
struct udevice *dev;
|
||
|
struct vc5_driver_data *vc5;
|
||
|
struct vc5_out_data *hwdata;
|
||
|
int ret;
|
||
|
|
||
|
uclass_get_device_by_name(UCLASS_CLK, clk_hw_get_name(hw), &dev);
|
||
|
vc5 = dev_get_priv(dev);
|
||
|
hwdata = &vc5->clk_out[hw->id];
|
||
|
|
||
|
/* Disable the clock buffer */
|
||
|
ret = vc5_update_bits(vc5->i2c, VC5_CLK_OUTPUT_CFG(hwdata->num, 1),
|
||
|
VC5_CLK_OUTPUT_CFG1_EN_CLKBUF, 0);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int vc5_clk_out_set_parent(struct vc5_driver_data *vc, u8 num, u8 index)
|
||
|
{
|
||
|
const u8 mask = VC5_OUT_DIV_CONTROL_RESET |
|
||
|
VC5_OUT_DIV_CONTROL_SELB_NORM |
|
||
|
VC5_OUT_DIV_CONTROL_SEL_EXT |
|
||
|
VC5_OUT_DIV_CONTROL_EN_FOD;
|
||
|
const u8 extclk = VC5_OUT_DIV_CONTROL_SELB_NORM |
|
||
|
VC5_OUT_DIV_CONTROL_SEL_EXT;
|
||
|
u8 src = VC5_OUT_DIV_CONTROL_RESET;
|
||
|
|
||
|
if (index == 0)
|
||
|
src |= VC5_OUT_DIV_CONTROL_EN_FOD;
|
||
|
else
|
||
|
src |= extclk;
|
||
|
|
||
|
return vc5_update_bits(vc->i2c, VC5_OUT_DIV_CONTROL(num), mask, src);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* The device references to the Versaclock point to the head, so xlate needs to
|
||
|
* redirect it to clk_out[idx]
|
||
|
*/
|
||
|
static int vc5_clk_out_xlate(struct clk *hw, struct ofnode_phandle_args *args)
|
||
|
{
|
||
|
unsigned int idx = args->args[0];
|
||
|
|
||
|
if (args->args_count != 1) {
|
||
|
debug("Invaild args_count: %d\n", args->args_count);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
hw->id = idx;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static unsigned long vc5_clk_out_set_rate(struct clk *hw, unsigned long rate)
|
||
|
{
|
||
|
struct udevice *dev;
|
||
|
struct vc5_driver_data *vc;
|
||
|
struct clk *parent;
|
||
|
|
||
|
uclass_get_device_by_name(UCLASS_CLK, clk_hw_get_name(hw), &dev);
|
||
|
vc = dev_get_priv(dev);
|
||
|
parent = clk_get_parent(&vc->clk_out[hw->id].hw);
|
||
|
|
||
|
/* setting the output rate really means setting the parent FOD rate */
|
||
|
return clk_set_rate(parent, clk_round_rate(parent, rate));
|
||
|
}
|
||
|
|
||
|
static unsigned long vc5_clk_out_get_rate(struct clk *hw)
|
||
|
{
|
||
|
return clk_get_parent_rate(hw);
|
||
|
}
|
||
|
|
||
|
static const struct clk_ops vc5_clk_out_ops = {
|
||
|
.enable = vc5_clk_out_prepare,
|
||
|
.disable = vc5_clk_out_unprepare,
|
||
|
.set_rate = vc5_clk_out_set_rate,
|
||
|
.get_rate = vc5_clk_out_get_rate,
|
||
|
};
|
||
|
|
||
|
static const struct clk_ops vc5_clk_out_sel_ops = {
|
||
|
.enable = vc5_clk_out_prepare,
|
||
|
.disable = vc5_clk_out_unprepare,
|
||
|
.get_rate = vc5_clk_out_get_rate,
|
||
|
};
|
||
|
|
||
|
static const struct clk_ops vc5_clk_ops = {
|
||
|
.enable = vc5_clk_out_prepare,
|
||
|
.disable = vc5_clk_out_unprepare,
|
||
|
.of_xlate = vc5_clk_out_xlate,
|
||
|
.set_rate = vc5_clk_out_set_rate,
|
||
|
.get_rate = vc5_clk_out_get_rate,
|
||
|
};
|
||
|
|
||
|
static int vc5_map_index_to_output(const enum vc5_model model,
|
||
|
const unsigned int n)
|
||
|
{
|
||
|
switch (model) {
|
||
|
case IDT_VC5_5P49V5933:
|
||
|
return (n == 0) ? 0 : 3;
|
||
|
case IDT_VC5_5P49V5923:
|
||
|
case IDT_VC5_5P49V5925:
|
||
|
case IDT_VC5_5P49V5935:
|
||
|
case IDT_VC6_5P49V6901:
|
||
|
case IDT_VC6_5P49V6965:
|
||
|
default:
|
||
|
return n;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static int vc5_update_mode(ofnode np_output,
|
||
|
struct vc5_out_data *clk_out)
|
||
|
{
|
||
|
u32 value;
|
||
|
|
||
|
if (!ofnode_read_u32(np_output, "idt,mode", &value)) {
|
||
|
clk_out->clk_output_cfg0_mask |= VC5_CLK_OUTPUT_CFG0_CFG_MASK;
|
||
|
switch (value) {
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_LVPECL:
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_CMOS:
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_HCSL33:
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_LVDS:
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_CMOS2:
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_CMOSD:
|
||
|
case VC5_CLK_OUTPUT_CFG0_CFG_HCSL25:
|
||
|
clk_out->clk_output_cfg0 |=
|
||
|
value << VC5_CLK_OUTPUT_CFG0_CFG_SHIFT;
|
||
|
break;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vc5_update_power(ofnode np_output, struct vc5_out_data *clk_out)
|
||
|
{
|
||
|
u32 value;
|
||
|
|
||
|
if (!ofnode_read_u32(np_output, "idt,voltage-microvolt", &value)) {
|
||
|
clk_out->clk_output_cfg0_mask |= VC5_CLK_OUTPUT_CFG0_PWR_MASK;
|
||
|
switch (value) {
|
||
|
case 1800000:
|
||
|
clk_out->clk_output_cfg0 |= VC5_CLK_OUTPUT_CFG0_PWR_18;
|
||
|
break;
|
||
|
case 2500000:
|
||
|
clk_out->clk_output_cfg0 |= VC5_CLK_OUTPUT_CFG0_PWR_25;
|
||
|
break;
|
||
|
case 3300000:
|
||
|
clk_out->clk_output_cfg0 |= VC5_CLK_OUTPUT_CFG0_PWR_33;
|
||
|
break;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vc5_map_cap_value(u32 femtofarads)
|
||
|
{
|
||
|
int mapped_value;
|
||
|
|
||
|
/*
|
||
|
* The datasheet explicitly states 9000 - 25000 with 0.5pF
|
||
|
* steps, but the Programmer's guide shows the steps are 0.430pF.
|
||
|
* After getting feedback from Renesas, the .5pF steps were the
|
||
|
* goal, but 430nF was the actual values.
|
||
|
* Because of this, the actual range goes to 22760 instead of 25000
|
||
|
*/
|
||
|
if (femtofarads < 9000 || femtofarads > 22760)
|
||
|
return -EINVAL;
|
||
|
|
||
|
/*
|
||
|
* The Programmer's guide shows XTAL[5:0] but in reality,
|
||
|
* XTAL[0] and XTAL[1] are both LSB which makes the math
|
||
|
* strange. With clarfication from Renesas, setting the
|
||
|
* values should be simpler by ignoring XTAL[0]
|
||
|
*/
|
||
|
mapped_value = DIV_ROUND_CLOSEST(femtofarads - 9000, 430);
|
||
|
|
||
|
/*
|
||
|
* Since the calculation ignores XTAL[0], there is one
|
||
|
* special case where mapped_value = 32. In reality, this means
|
||
|
* the real mapped value should be 111111b. In other cases,
|
||
|
* the mapped_value needs to be shifted 1 to the left.
|
||
|
*/
|
||
|
if (mapped_value > 31)
|
||
|
mapped_value = 0x3f;
|
||
|
else
|
||
|
mapped_value <<= 1;
|
||
|
|
||
|
return mapped_value;
|
||
|
}
|
||
|
|
||
|
static int vc5_update_cap_load(ofnode node, struct vc5_driver_data *vc5)
|
||
|
{
|
||
|
u32 value;
|
||
|
int mapped_value;
|
||
|
|
||
|
if (!ofnode_read_u32(node, "idt,xtal-load-femtofarads", &value)) {
|
||
|
mapped_value = vc5_map_cap_value(value);
|
||
|
|
||
|
if (mapped_value < 0)
|
||
|
return mapped_value;
|
||
|
|
||
|
/*
|
||
|
* The mapped_value is really the high 6 bits of
|
||
|
* VC5_XTAL_X1_LOAD_CAP and VC5_XTAL_X2_LOAD_CAP, so
|
||
|
* shift the value 2 places.
|
||
|
*/
|
||
|
vc5_update_bits(vc5->i2c, VC5_XTAL_X1_LOAD_CAP, ~0x03, mapped_value << 2);
|
||
|
vc5_update_bits(vc5->i2c, VC5_XTAL_X2_LOAD_CAP, ~0x03, mapped_value << 2);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vc5_update_slew(ofnode np_output, struct vc5_out_data *clk_out)
|
||
|
{
|
||
|
u32 value;
|
||
|
|
||
|
if (!ofnode_read_u32(np_output, "idt,slew-percent", &value)) {
|
||
|
clk_out->clk_output_cfg0_mask |= VC5_CLK_OUTPUT_CFG0_SLEW_MASK;
|
||
|
|
||
|
switch (value) {
|
||
|
case 80:
|
||
|
clk_out->clk_output_cfg0 |= VC5_CLK_OUTPUT_CFG0_SLEW_80;
|
||
|
break;
|
||
|
case 85:
|
||
|
clk_out->clk_output_cfg0 |= VC5_CLK_OUTPUT_CFG0_SLEW_85;
|
||
|
break;
|
||
|
case 90:
|
||
|
clk_out->clk_output_cfg0 |= VC5_CLK_OUTPUT_CFG0_SLEW_90;
|
||
|
break;
|
||
|
case 100:
|
||
|
clk_out->clk_output_cfg0 |=
|
||
|
VC5_CLK_OUTPUT_CFG0_SLEW_100;
|
||
|
break;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vc5_get_output_config(struct udevice *dev,
|
||
|
struct vc5_out_data *clk_out)
|
||
|
{
|
||
|
ofnode np_output;
|
||
|
char child_name[5];
|
||
|
int ret = 0;
|
||
|
|
||
|
sprintf(child_name, "OUT%d", clk_out->num + 1);
|
||
|
|
||
|
np_output = dev_read_subnode(dev, child_name);
|
||
|
|
||
|
if (!ofnode_valid(np_output)) {
|
||
|
dev_dbg(dev, "Invalid clock output configuration OUT%d\n",
|
||
|
clk_out->num + 1);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
ret = vc5_update_mode(np_output, clk_out);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = vc5_update_power(np_output, clk_out);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = vc5_update_slew(np_output, clk_out);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static char *versaclock_get_name(const char *dev_name, const char *clk_name, int index)
|
||
|
{
|
||
|
int length;
|
||
|
char *buf;
|
||
|
|
||
|
if (index < 0)
|
||
|
length = snprintf(NULL, 0, "%s.%s", dev_name, clk_name) + 1;
|
||
|
else
|
||
|
length = snprintf(NULL, 0, "%s.%s%d", dev_name, clk_name, index) + 1;
|
||
|
|
||
|
buf = malloc(length);
|
||
|
if (!buf)
|
||
|
ERR_PTR(-ENOMEM);
|
||
|
|
||
|
if (index < 0)
|
||
|
snprintf(buf, length, "%s.%s", dev_name, clk_name);
|
||
|
else
|
||
|
snprintf(buf, length, "%s.%s%d", dev_name, clk_name, index);
|
||
|
|
||
|
return buf;
|
||
|
}
|
||
|
|
||
|
int versaclock_probe(struct udevice *dev)
|
||
|
{
|
||
|
struct vc5_driver_data *vc5 = dev_get_priv(dev);
|
||
|
struct vc5_chip_info *chip = (void *)dev_get_driver_data(dev);
|
||
|
unsigned int n, idx = 0;
|
||
|
char *mux_name, *pfd_name, *pll_name, *outsel_name;
|
||
|
char *out_name[VC5_MAX_CLK_OUT_NUM];
|
||
|
char *fod_name[VC5_MAX_FOD_NUM];
|
||
|
int ret;
|
||
|
u64 val;
|
||
|
|
||
|
val = (u64)dev_read_addr_ptr(dev);
|
||
|
ret = i2c_get_chip(dev->parent, val, 1, &vc5->i2c);
|
||
|
|
||
|
if (ret) {
|
||
|
dev_dbg(dev, "I2C probe failed.\n");
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
vc5->chip_info = chip;
|
||
|
vc5->pin_xin = devm_clk_get(dev, "xin");
|
||
|
|
||
|
if (IS_ERR(vc5->pin_xin))
|
||
|
dev_dbg(dev, "failed to get xin clock\n");
|
||
|
|
||
|
ret = clk_enable(vc5->pin_xin);
|
||
|
if (ret)
|
||
|
dev_dbg(dev, "failed to enable XIN clock\n");
|
||
|
|
||
|
vc5->pin_clkin = devm_clk_get(dev, "clkin");
|
||
|
|
||
|
/* Register clock input mux */
|
||
|
if (!IS_ERR(vc5->pin_xin)) {
|
||
|
vc5->clk_mux_ins |= VC5_MUX_IN_XIN;
|
||
|
} else if (vc5->chip_info->flags & VC5_HAS_INTERNAL_XTAL) {
|
||
|
if (IS_ERR(vc5->pin_xin))
|
||
|
return PTR_ERR(vc5->pin_xin);
|
||
|
vc5->clk_mux_ins |= VC5_MUX_IN_XIN;
|
||
|
}
|
||
|
|
||
|
mux_name = versaclock_get_name(dev->name, "mux", -1);
|
||
|
if (IS_ERR(mux_name))
|
||
|
return PTR_ERR(mux_name);
|
||
|
|
||
|
clk_register(&vc5->clk_mux, "versaclock-mux", mux_name, vc5->pin_xin->dev->name);
|
||
|
|
||
|
if (!IS_ERR(vc5->pin_xin))
|
||
|
vc5_mux_set_parent(&vc5->clk_mux, 1);
|
||
|
else
|
||
|
vc5_mux_set_parent(&vc5->clk_mux, 0);
|
||
|
|
||
|
/* Configure Optional Loading Capacitance for external XTAL */
|
||
|
if (!(vc5->chip_info->flags & VC5_HAS_INTERNAL_XTAL)) {
|
||
|
ret = vc5_update_cap_load(dev_ofnode(dev), vc5);
|
||
|
if (ret)
|
||
|
dev_dbg(dev, "failed to vc5_update_cap_load\n");
|
||
|
}
|
||
|
|
||
|
/* Register PFD */
|
||
|
pfd_name = versaclock_get_name(dev->name, "pfd", -1);
|
||
|
if (IS_ERR(pfd_name)) {
|
||
|
ret = PTR_ERR(pfd_name);
|
||
|
goto free_mux;
|
||
|
}
|
||
|
|
||
|
ret = clk_register(&vc5->clk_pfd, "versaclock-pfd", pfd_name, vc5->clk_mux.dev->name);
|
||
|
if (ret)
|
||
|
goto free_pfd;
|
||
|
|
||
|
/* Register PLL */
|
||
|
vc5->clk_pll.num = 0;
|
||
|
vc5->clk_pll.vc5 = vc5;
|
||
|
pll_name = versaclock_get_name(dev->name, "pll", -1);
|
||
|
if (IS_ERR(pll_name)) {
|
||
|
ret = PTR_ERR(pll_name);
|
||
|
goto free_pfd;
|
||
|
}
|
||
|
|
||
|
ret = clk_register(&vc5->clk_pll.hw, "versaclock-pll", pll_name, vc5->clk_pfd.dev->name);
|
||
|
if (ret)
|
||
|
goto free_pll;
|
||
|
|
||
|
/* Register FODs */
|
||
|
for (n = 0; n < vc5->chip_info->clk_fod_cnt; n++) {
|
||
|
fod_name[n] = versaclock_get_name(dev->name, "fod", n);
|
||
|
if (IS_ERR(pll_name)) {
|
||
|
ret = PTR_ERR(fod_name[n]);
|
||
|
goto free_fod;
|
||
|
}
|
||
|
idx = vc5_map_index_to_output(vc5->chip_info->model, n);
|
||
|
vc5->clk_fod[n].num = idx;
|
||
|
vc5->clk_fod[n].vc5 = vc5;
|
||
|
ret = clk_register(&vc5->clk_fod[n].hw, "versaclock-fod", fod_name[n],
|
||
|
vc5->clk_pll.hw.dev->name);
|
||
|
if (ret)
|
||
|
goto free_fod;
|
||
|
}
|
||
|
|
||
|
/* Register MUX-connected OUT0_I2C_SELB output */
|
||
|
vc5->clk_out[0].num = idx;
|
||
|
vc5->clk_out[0].vc5 = vc5;
|
||
|
outsel_name = versaclock_get_name(dev->name, "out0_sel_i2cb", -1);
|
||
|
if (IS_ERR(outsel_name)) {
|
||
|
ret = PTR_ERR(outsel_name);
|
||
|
goto free_fod;
|
||
|
};
|
||
|
|
||
|
ret = clk_register(&vc5->clk_out[0].hw, "versaclock-outsel", outsel_name,
|
||
|
vc5->clk_mux.dev->name);
|
||
|
if (ret)
|
||
|
goto free_selb;
|
||
|
|
||
|
/* Register FOD-connected OUTx outputs */
|
||
|
for (n = 1; n < vc5->chip_info->clk_out_cnt; n++) {
|
||
|
idx = vc5_map_index_to_output(vc5->chip_info->model, n - 1);
|
||
|
out_name[n] = versaclock_get_name(dev->name, "out", n);
|
||
|
if (IS_ERR(out_name[n])) {
|
||
|
ret = PTR_ERR(out_name[n]);
|
||
|
goto free_selb;
|
||
|
}
|
||
|
vc5->clk_out[n].num = idx;
|
||
|
vc5->clk_out[n].vc5 = vc5;
|
||
|
ret = clk_register(&vc5->clk_out[n].hw, "versaclock-out", out_name[n],
|
||
|
vc5->clk_fod[idx].hw.dev->name);
|
||
|
if (ret)
|
||
|
goto free_out;
|
||
|
vc5_clk_out_set_parent(vc5, idx, 0);
|
||
|
|
||
|
/* Fetch Clock Output configuration from DT (if specified) */
|
||
|
ret = vc5_get_output_config(dev, &vc5->clk_out[n]);
|
||
|
if (ret) {
|
||
|
dev_dbg(dev, "failed to vc5_get_output_config()\n");
|
||
|
goto free_out;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
free_out:
|
||
|
for (n = 1; n < vc5->chip_info->clk_out_cnt; n++) {
|
||
|
clk_free(&vc5->clk_out[n].hw);
|
||
|
free(out_name[n]);
|
||
|
}
|
||
|
free_selb:
|
||
|
clk_free(&vc5->clk_out[0].hw);
|
||
|
free(outsel_name);
|
||
|
free_fod:
|
||
|
for (n = 0; n < vc5->chip_info->clk_fod_cnt; n++) {
|
||
|
clk_free(&vc5->clk_fod[n].hw);
|
||
|
free(fod_name[n]);
|
||
|
}
|
||
|
free_pll:
|
||
|
clk_free(&vc5->clk_pll.hw);
|
||
|
free(pll_name);
|
||
|
free_pfd:
|
||
|
clk_free(&vc5->clk_pfd);
|
||
|
free(pfd_name);
|
||
|
free_mux:
|
||
|
clk_free(&vc5->clk_mux);
|
||
|
free(mux_name);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static const struct udevice_id versaclock_ids[] = {
|
||
|
{ .compatible = "idt,5p49v5923", .data = (ulong)&idt_5p49v5923_info },
|
||
|
{ .compatible = "idt,5p49v5925", .data = (ulong)&idt_5p49v5925_info },
|
||
|
{ .compatible = "idt,5p49v5933", .data = (ulong)&idt_5p49v5933_info },
|
||
|
{ .compatible = "idt,5p49v5935", .data = (ulong)&idt_5p49v5935_info },
|
||
|
{ .compatible = "idt,5p49v6901", .data = (ulong)&idt_5p49v6901_info },
|
||
|
{ .compatible = "idt,5p49v6965", .data = (ulong)&idt_5p49v6965_info },
|
||
|
{},
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock) = {
|
||
|
.name = "versaclock",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_clk_ops,
|
||
|
.of_match = versaclock_ids,
|
||
|
.probe = versaclock_probe,
|
||
|
.priv_auto = sizeof(struct vc5_driver_data),
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock_mux) = {
|
||
|
.name = "versaclock-mux",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_mux_ops,
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock_pfd) = {
|
||
|
.name = "versaclock-pfd",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_pfd_ops,
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock_pll) = {
|
||
|
.name = "versaclock-pll",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_pll_ops,
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock_fod) = {
|
||
|
.name = "versaclock-fod",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_fod_ops,
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock_out) = {
|
||
|
.name = "versaclock-out",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_clk_out_ops,
|
||
|
};
|
||
|
|
||
|
U_BOOT_DRIVER(versaclock_outsel) = {
|
||
|
.name = "versaclock-outsel",
|
||
|
.id = UCLASS_CLK,
|
||
|
.ops = &vc5_clk_out_sel_ops,
|
||
|
};
|