964 lines
28 KiB
C
964 lines
28 KiB
C
/*
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* AM33XX Clock data
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*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
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* Vaibhav Hiremath <hvaibhav@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/clk-private.h>
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#include <linux/clkdev.h>
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#include <linux/io.h>
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#include "am33xx.h"
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#include "soc.h"
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#include "iomap.h"
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#include "clock.h"
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#include "control.h"
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#include "cm.h"
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#include "cm33xx.h"
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#include "cm-regbits-33xx.h"
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#include "prm.h"
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/* Modulemode control */
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#define AM33XX_MODULEMODE_HWCTRL_SHIFT 0
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#define AM33XX_MODULEMODE_SWCTRL_SHIFT 1
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/*LIST_HEAD(clocks);*/
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/* Root clocks */
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/* RTC 32k */
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DEFINE_CLK_FIXED_RATE(clk_32768_ck, CLK_IS_ROOT, 32768, 0x0);
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/* On-Chip 32KHz RC OSC */
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DEFINE_CLK_FIXED_RATE(clk_rc32k_ck, CLK_IS_ROOT, 32000, 0x0);
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/* Crystal input clks */
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DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0);
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DEFINE_CLK_FIXED_RATE(virt_24000000_ck, CLK_IS_ROOT, 24000000, 0x0);
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DEFINE_CLK_FIXED_RATE(virt_25000000_ck, CLK_IS_ROOT, 25000000, 0x0);
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DEFINE_CLK_FIXED_RATE(virt_26000000_ck, CLK_IS_ROOT, 26000000, 0x0);
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/* Oscillator clock */
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/* 19.2, 24, 25 or 26 MHz */
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static const char *sys_clkin_ck_parents[] = {
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"virt_19200000_ck", "virt_24000000_ck", "virt_25000000_ck",
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"virt_26000000_ck",
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};
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/*
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* sys_clk in: input to the dpll and also used as funtional clock for,
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* adc_tsc, smartreflex0-1, timer1-7, mcasp0-1, dcan0-1, cefuse
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*
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*/
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DEFINE_CLK_MUX(sys_clkin_ck, sys_clkin_ck_parents, NULL, 0x0,
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AM33XX_CTRL_REGADDR(AM33XX_CONTROL_STATUS),
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AM33XX_CONTROL_STATUS_SYSBOOT1_SHIFT,
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AM33XX_CONTROL_STATUS_SYSBOOT1_WIDTH,
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0, NULL);
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/* External clock - 12 MHz */
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DEFINE_CLK_FIXED_RATE(tclkin_ck, CLK_IS_ROOT, 12000000, 0x0);
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/* Module clocks and DPLL outputs */
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/* DPLL_CORE */
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static struct dpll_data dpll_core_dd = {
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.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_CORE,
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.clk_bypass = &sys_clkin_ck,
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.clk_ref = &sys_clkin_ck,
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.control_reg = AM33XX_CM_CLKMODE_DPLL_CORE,
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.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
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.idlest_reg = AM33XX_CM_IDLEST_DPLL_CORE,
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.mult_mask = AM33XX_DPLL_MULT_MASK,
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.div1_mask = AM33XX_DPLL_DIV_MASK,
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.enable_mask = AM33XX_DPLL_EN_MASK,
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.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
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.max_multiplier = 2047,
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.max_divider = 128,
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.min_divider = 1,
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};
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/* CLKDCOLDO output */
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static const char *dpll_core_ck_parents[] = {
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"sys_clkin_ck",
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};
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static struct clk dpll_core_ck;
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static const struct clk_ops dpll_core_ck_ops = {
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.recalc_rate = &omap3_dpll_recalc,
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.get_parent = &omap2_init_dpll_parent,
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};
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static struct clk_hw_omap dpll_core_ck_hw = {
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.hw = {
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.clk = &dpll_core_ck,
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},
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.dpll_data = &dpll_core_dd,
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.ops = &clkhwops_omap3_dpll,
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};
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DEFINE_STRUCT_CLK(dpll_core_ck, dpll_core_ck_parents, dpll_core_ck_ops);
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static const char *dpll_core_x2_ck_parents[] = {
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"dpll_core_ck",
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};
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static struct clk dpll_core_x2_ck;
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static const struct clk_ops dpll_x2_ck_ops = {
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.recalc_rate = &omap3_clkoutx2_recalc,
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};
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static struct clk_hw_omap dpll_core_x2_ck_hw = {
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.hw = {
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.clk = &dpll_core_x2_ck,
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},
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.flags = CLOCK_CLKOUTX2,
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};
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DEFINE_STRUCT_CLK(dpll_core_x2_ck, dpll_core_x2_ck_parents, dpll_x2_ck_ops);
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DEFINE_CLK_DIVIDER(dpll_core_m4_ck, "dpll_core_x2_ck", &dpll_core_x2_ck,
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0x0, AM33XX_CM_DIV_M4_DPLL_CORE,
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AM33XX_HSDIVIDER_CLKOUT1_DIV_SHIFT,
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AM33XX_HSDIVIDER_CLKOUT1_DIV_WIDTH, CLK_DIVIDER_ONE_BASED,
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NULL);
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DEFINE_CLK_DIVIDER(dpll_core_m5_ck, "dpll_core_x2_ck", &dpll_core_x2_ck,
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0x0, AM33XX_CM_DIV_M5_DPLL_CORE,
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AM33XX_HSDIVIDER_CLKOUT2_DIV_SHIFT,
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AM33XX_HSDIVIDER_CLKOUT2_DIV_WIDTH,
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CLK_DIVIDER_ONE_BASED, NULL);
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DEFINE_CLK_DIVIDER(dpll_core_m6_ck, "dpll_core_x2_ck", &dpll_core_x2_ck,
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0x0, AM33XX_CM_DIV_M6_DPLL_CORE,
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AM33XX_HSDIVIDER_CLKOUT3_DIV_SHIFT,
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AM33XX_HSDIVIDER_CLKOUT3_DIV_WIDTH,
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CLK_DIVIDER_ONE_BASED, NULL);
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/* DPLL_MPU */
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static struct dpll_data dpll_mpu_dd = {
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.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_MPU,
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.clk_bypass = &sys_clkin_ck,
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.clk_ref = &sys_clkin_ck,
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.control_reg = AM33XX_CM_CLKMODE_DPLL_MPU,
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.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
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.idlest_reg = AM33XX_CM_IDLEST_DPLL_MPU,
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.mult_mask = AM33XX_DPLL_MULT_MASK,
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.div1_mask = AM33XX_DPLL_DIV_MASK,
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.enable_mask = AM33XX_DPLL_EN_MASK,
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.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
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.max_multiplier = 2047,
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.max_divider = 128,
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.min_divider = 1,
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};
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/* CLKOUT: fdpll/M2 */
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static struct clk dpll_mpu_ck;
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static const struct clk_ops dpll_mpu_ck_ops = {
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.enable = &omap3_noncore_dpll_enable,
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.disable = &omap3_noncore_dpll_disable,
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.recalc_rate = &omap3_dpll_recalc,
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.round_rate = &omap2_dpll_round_rate,
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.set_rate = &omap3_noncore_dpll_set_rate,
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.get_parent = &omap2_init_dpll_parent,
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};
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static struct clk_hw_omap dpll_mpu_ck_hw = {
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.hw = {
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.clk = &dpll_mpu_ck,
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},
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.dpll_data = &dpll_mpu_dd,
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.ops = &clkhwops_omap3_dpll,
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};
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DEFINE_STRUCT_CLK(dpll_mpu_ck, dpll_core_ck_parents, dpll_mpu_ck_ops);
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/*
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* TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2
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* and ALT_CLK1/2)
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*/
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DEFINE_CLK_DIVIDER(dpll_mpu_m2_ck, "dpll_mpu_ck", &dpll_mpu_ck,
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0x0, AM33XX_CM_DIV_M2_DPLL_MPU, AM33XX_DPLL_CLKOUT_DIV_SHIFT,
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AM33XX_DPLL_CLKOUT_DIV_WIDTH, CLK_DIVIDER_ONE_BASED, NULL);
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/* DPLL_DDR */
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static struct dpll_data dpll_ddr_dd = {
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.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_DDR,
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.clk_bypass = &sys_clkin_ck,
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.clk_ref = &sys_clkin_ck,
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.control_reg = AM33XX_CM_CLKMODE_DPLL_DDR,
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.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
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.idlest_reg = AM33XX_CM_IDLEST_DPLL_DDR,
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.mult_mask = AM33XX_DPLL_MULT_MASK,
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.div1_mask = AM33XX_DPLL_DIV_MASK,
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.enable_mask = AM33XX_DPLL_EN_MASK,
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.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
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.max_multiplier = 2047,
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.max_divider = 128,
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.min_divider = 1,
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};
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/* CLKOUT: fdpll/M2 */
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static struct clk dpll_ddr_ck;
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static const struct clk_ops dpll_ddr_ck_ops = {
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.recalc_rate = &omap3_dpll_recalc,
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.get_parent = &omap2_init_dpll_parent,
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.round_rate = &omap2_dpll_round_rate,
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.set_rate = &omap3_noncore_dpll_set_rate,
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};
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static struct clk_hw_omap dpll_ddr_ck_hw = {
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.hw = {
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.clk = &dpll_ddr_ck,
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},
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.dpll_data = &dpll_ddr_dd,
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.ops = &clkhwops_omap3_dpll,
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};
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DEFINE_STRUCT_CLK(dpll_ddr_ck, dpll_core_ck_parents, dpll_ddr_ck_ops);
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/*
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* TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2
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* and ALT_CLK1/2)
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*/
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DEFINE_CLK_DIVIDER(dpll_ddr_m2_ck, "dpll_ddr_ck", &dpll_ddr_ck,
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0x0, AM33XX_CM_DIV_M2_DPLL_DDR,
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AM33XX_DPLL_CLKOUT_DIV_SHIFT, AM33XX_DPLL_CLKOUT_DIV_WIDTH,
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CLK_DIVIDER_ONE_BASED, NULL);
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/* emif_fck functional clock */
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DEFINE_CLK_FIXED_FACTOR(dpll_ddr_m2_div2_ck, "dpll_ddr_m2_ck", &dpll_ddr_m2_ck,
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0x0, 1, 2);
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/* DPLL_DISP */
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static struct dpll_data dpll_disp_dd = {
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.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_DISP,
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.clk_bypass = &sys_clkin_ck,
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.clk_ref = &sys_clkin_ck,
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.control_reg = AM33XX_CM_CLKMODE_DPLL_DISP,
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.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
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.idlest_reg = AM33XX_CM_IDLEST_DPLL_DISP,
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.mult_mask = AM33XX_DPLL_MULT_MASK,
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.div1_mask = AM33XX_DPLL_DIV_MASK,
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.enable_mask = AM33XX_DPLL_EN_MASK,
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.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
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.max_multiplier = 2047,
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.max_divider = 128,
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.min_divider = 1,
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};
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/* CLKOUT: fdpll/M2 */
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static struct clk dpll_disp_ck;
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static struct clk_hw_omap dpll_disp_ck_hw = {
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.hw = {
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.clk = &dpll_disp_ck,
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},
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.dpll_data = &dpll_disp_dd,
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.ops = &clkhwops_omap3_dpll,
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};
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DEFINE_STRUCT_CLK(dpll_disp_ck, dpll_core_ck_parents, dpll_ddr_ck_ops);
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/*
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* TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2
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* and ALT_CLK1/2)
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*/
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DEFINE_CLK_DIVIDER(dpll_disp_m2_ck, "dpll_disp_ck", &dpll_disp_ck,
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CLK_SET_RATE_PARENT, AM33XX_CM_DIV_M2_DPLL_DISP,
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AM33XX_DPLL_CLKOUT_DIV_SHIFT, AM33XX_DPLL_CLKOUT_DIV_WIDTH,
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CLK_DIVIDER_ONE_BASED, NULL);
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/* DPLL_PER */
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static struct dpll_data dpll_per_dd = {
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.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_PERIPH,
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.clk_bypass = &sys_clkin_ck,
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.clk_ref = &sys_clkin_ck,
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.control_reg = AM33XX_CM_CLKMODE_DPLL_PER,
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.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
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.idlest_reg = AM33XX_CM_IDLEST_DPLL_PER,
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.mult_mask = AM33XX_DPLL_MULT_PERIPH_MASK,
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.div1_mask = AM33XX_DPLL_PER_DIV_MASK,
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.enable_mask = AM33XX_DPLL_EN_MASK,
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.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
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.max_multiplier = 2047,
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.max_divider = 128,
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.min_divider = 1,
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.flags = DPLL_J_TYPE,
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};
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/* CLKDCOLDO */
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static struct clk dpll_per_ck;
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static struct clk_hw_omap dpll_per_ck_hw = {
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.hw = {
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.clk = &dpll_per_ck,
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},
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.dpll_data = &dpll_per_dd,
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.ops = &clkhwops_omap3_dpll,
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};
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DEFINE_STRUCT_CLK(dpll_per_ck, dpll_core_ck_parents, dpll_ddr_ck_ops);
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/* CLKOUT: fdpll/M2 */
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DEFINE_CLK_DIVIDER(dpll_per_m2_ck, "dpll_per_ck", &dpll_per_ck, 0x0,
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AM33XX_CM_DIV_M2_DPLL_PER, AM33XX_DPLL_CLKOUT_DIV_SHIFT,
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AM33XX_DPLL_CLKOUT_DIV_WIDTH, CLK_DIVIDER_ONE_BASED,
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NULL);
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DEFINE_CLK_FIXED_FACTOR(dpll_per_m2_div4_wkupdm_ck, "dpll_per_m2_ck",
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&dpll_per_m2_ck, 0x0, 1, 4);
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DEFINE_CLK_FIXED_FACTOR(dpll_per_m2_div4_ck, "dpll_per_m2_ck",
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&dpll_per_m2_ck, 0x0, 1, 4);
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DEFINE_CLK_FIXED_FACTOR(dpll_core_m4_div2_ck, "dpll_core_m4_ck",
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&dpll_core_m4_ck, 0x0, 1, 2);
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DEFINE_CLK_FIXED_FACTOR(l4_rtc_gclk, "dpll_core_m4_ck", &dpll_core_m4_ck, 0x0,
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1, 2);
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DEFINE_CLK_FIXED_FACTOR(clk_24mhz, "dpll_per_m2_ck", &dpll_per_m2_ck, 0x0, 1,
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8);
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/*
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* Below clock nodes describes clockdomains derived out
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* of core clock.
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*/
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static const struct clk_ops clk_ops_null = {
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};
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static const char *l3_gclk_parents[] = {
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"dpll_core_m4_ck"
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};
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static struct clk l3_gclk;
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DEFINE_STRUCT_CLK_HW_OMAP(l3_gclk, NULL);
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DEFINE_STRUCT_CLK(l3_gclk, l3_gclk_parents, clk_ops_null);
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static struct clk l4hs_gclk;
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DEFINE_STRUCT_CLK_HW_OMAP(l4hs_gclk, NULL);
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DEFINE_STRUCT_CLK(l4hs_gclk, l3_gclk_parents, clk_ops_null);
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static const char *l3s_gclk_parents[] = {
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"dpll_core_m4_div2_ck"
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};
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static struct clk l3s_gclk;
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DEFINE_STRUCT_CLK_HW_OMAP(l3s_gclk, NULL);
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DEFINE_STRUCT_CLK(l3s_gclk, l3s_gclk_parents, clk_ops_null);
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static struct clk l4fw_gclk;
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DEFINE_STRUCT_CLK_HW_OMAP(l4fw_gclk, NULL);
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DEFINE_STRUCT_CLK(l4fw_gclk, l3s_gclk_parents, clk_ops_null);
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static struct clk l4ls_gclk;
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DEFINE_STRUCT_CLK_HW_OMAP(l4ls_gclk, NULL);
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DEFINE_STRUCT_CLK(l4ls_gclk, l3s_gclk_parents, clk_ops_null);
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static struct clk sysclk_div_ck;
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DEFINE_STRUCT_CLK_HW_OMAP(sysclk_div_ck, NULL);
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DEFINE_STRUCT_CLK(sysclk_div_ck, l3_gclk_parents, clk_ops_null);
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/*
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* In order to match the clock domain with hwmod clockdomain entry,
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* separate clock nodes is required for the modules which are
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* directly getting their funtioncal clock from sys_clkin.
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*/
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static struct clk adc_tsc_fck;
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DEFINE_STRUCT_CLK_HW_OMAP(adc_tsc_fck, NULL);
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DEFINE_STRUCT_CLK(adc_tsc_fck, dpll_core_ck_parents, clk_ops_null);
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static struct clk dcan0_fck;
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DEFINE_STRUCT_CLK_HW_OMAP(dcan0_fck, NULL);
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DEFINE_STRUCT_CLK(dcan0_fck, dpll_core_ck_parents, clk_ops_null);
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static struct clk dcan1_fck;
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DEFINE_STRUCT_CLK_HW_OMAP(dcan1_fck, NULL);
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DEFINE_STRUCT_CLK(dcan1_fck, dpll_core_ck_parents, clk_ops_null);
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static struct clk mcasp0_fck;
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DEFINE_STRUCT_CLK_HW_OMAP(mcasp0_fck, NULL);
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DEFINE_STRUCT_CLK(mcasp0_fck, dpll_core_ck_parents, clk_ops_null);
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static struct clk mcasp1_fck;
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DEFINE_STRUCT_CLK_HW_OMAP(mcasp1_fck, NULL);
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DEFINE_STRUCT_CLK(mcasp1_fck, dpll_core_ck_parents, clk_ops_null);
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static struct clk smartreflex0_fck;
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DEFINE_STRUCT_CLK_HW_OMAP(smartreflex0_fck, NULL);
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DEFINE_STRUCT_CLK(smartreflex0_fck, dpll_core_ck_parents, clk_ops_null);
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|
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static struct clk smartreflex1_fck;
|
|
DEFINE_STRUCT_CLK_HW_OMAP(smartreflex1_fck, NULL);
|
|
DEFINE_STRUCT_CLK(smartreflex1_fck, dpll_core_ck_parents, clk_ops_null);
|
|
|
|
/*
|
|
* Modules clock nodes
|
|
*
|
|
* The following clock leaf nodes are added for the moment because:
|
|
*
|
|
* - hwmod data is not present for these modules, either hwmod
|
|
* control is not required or its not populated.
|
|
* - Driver code is not yet migrated to use hwmod/runtime pm
|
|
* - Modules outside kernel access (to disable them by default)
|
|
*
|
|
* - debugss
|
|
* - mmu (gfx domain)
|
|
* - cefuse
|
|
* - usbotg_fck (its additional clock and not really a modulemode)
|
|
* - ieee5000
|
|
*/
|
|
DEFINE_CLK_GATE(debugss_ick, "dpll_core_m4_ck", &dpll_core_m4_ck, 0x0,
|
|
AM33XX_CM_WKUP_DEBUGSS_CLKCTRL, AM33XX_MODULEMODE_SWCTRL_SHIFT,
|
|
0x0, NULL);
|
|
|
|
DEFINE_CLK_GATE(mmu_fck, "dpll_core_m4_ck", &dpll_core_m4_ck, 0x0,
|
|
AM33XX_CM_GFX_MMUDATA_CLKCTRL, AM33XX_MODULEMODE_SWCTRL_SHIFT,
|
|
0x0, NULL);
|
|
|
|
DEFINE_CLK_GATE(cefuse_fck, "sys_clkin_ck", &sys_clkin_ck, 0x0,
|
|
AM33XX_CM_CEFUSE_CEFUSE_CLKCTRL, AM33XX_MODULEMODE_SWCTRL_SHIFT,
|
|
0x0, NULL);
|
|
|
|
/*
|
|
* clkdiv32 is generated from fixed division of 732.4219
|
|
*/
|
|
DEFINE_CLK_FIXED_FACTOR(clkdiv32k_ck, "clk_24mhz", &clk_24mhz, 0x0, 1, 732);
|
|
|
|
DEFINE_CLK_GATE(clkdiv32k_ick, "clkdiv32k_ck", &clkdiv32k_ck, 0x0,
|
|
AM33XX_CM_PER_CLKDIV32K_CLKCTRL, AM33XX_MODULEMODE_SWCTRL_SHIFT,
|
|
0x0, NULL);
|
|
|
|
/* "usbotg_fck" is an additional clock and not really a modulemode */
|
|
DEFINE_CLK_GATE(usbotg_fck, "dpll_per_ck", &dpll_per_ck, 0x0,
|
|
AM33XX_CM_CLKDCOLDO_DPLL_PER, AM33XX_ST_DPLL_CLKDCOLDO_SHIFT,
|
|
0x0, NULL);
|
|
|
|
DEFINE_CLK_GATE(ieee5000_fck, "dpll_core_m4_div2_ck", &dpll_core_m4_div2_ck,
|
|
0x0, AM33XX_CM_PER_IEEE5000_CLKCTRL,
|
|
AM33XX_MODULEMODE_SWCTRL_SHIFT, 0x0, NULL);
|
|
|
|
/* Timers */
|
|
static const struct clksel timer1_clkmux_sel[] = {
|
|
{ .parent = &sys_clkin_ck, .rates = div_1_0_rates },
|
|
{ .parent = &clkdiv32k_ick, .rates = div_1_1_rates },
|
|
{ .parent = &tclkin_ck, .rates = div_1_2_rates },
|
|
{ .parent = &clk_rc32k_ck, .rates = div_1_3_rates },
|
|
{ .parent = &clk_32768_ck, .rates = div_1_4_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static const char *timer1_ck_parents[] = {
|
|
"sys_clkin_ck", "clkdiv32k_ick", "tclkin_ck", "clk_rc32k_ck",
|
|
"clk_32768_ck",
|
|
};
|
|
|
|
static struct clk timer1_fck;
|
|
|
|
static const struct clk_ops timer1_fck_ops = {
|
|
.recalc_rate = &omap2_clksel_recalc,
|
|
.get_parent = &omap2_clksel_find_parent_index,
|
|
.set_parent = &omap2_clksel_set_parent,
|
|
.init = &omap2_init_clk_clkdm,
|
|
};
|
|
|
|
static struct clk_hw_omap timer1_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer1_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer1_clkmux_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER1MS_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_2_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer1_fck, timer1_ck_parents, timer1_fck_ops);
|
|
|
|
static const struct clksel timer2_to_7_clk_sel[] = {
|
|
{ .parent = &tclkin_ck, .rates = div_1_0_rates },
|
|
{ .parent = &sys_clkin_ck, .rates = div_1_1_rates },
|
|
{ .parent = &clkdiv32k_ick, .rates = div_1_2_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static const char *timer2_to_7_ck_parents[] = {
|
|
"tclkin_ck", "sys_clkin_ck", "clkdiv32k_ick",
|
|
};
|
|
|
|
static struct clk timer2_fck;
|
|
|
|
static struct clk_hw_omap timer2_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer2_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer2_to_7_clk_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER2_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer2_fck, timer2_to_7_ck_parents, timer1_fck_ops);
|
|
|
|
static struct clk timer3_fck;
|
|
|
|
static struct clk_hw_omap timer3_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer3_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer2_to_7_clk_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER3_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer3_fck, timer2_to_7_ck_parents, timer1_fck_ops);
|
|
|
|
static struct clk timer4_fck;
|
|
|
|
static struct clk_hw_omap timer4_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer4_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer2_to_7_clk_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER4_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer4_fck, timer2_to_7_ck_parents, timer1_fck_ops);
|
|
|
|
static struct clk timer5_fck;
|
|
|
|
static struct clk_hw_omap timer5_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer5_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer2_to_7_clk_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER5_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer5_fck, timer2_to_7_ck_parents, timer1_fck_ops);
|
|
|
|
static struct clk timer6_fck;
|
|
|
|
static struct clk_hw_omap timer6_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer6_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer2_to_7_clk_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER6_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer6_fck, timer2_to_7_ck_parents, timer1_fck_ops);
|
|
|
|
static struct clk timer7_fck;
|
|
|
|
static struct clk_hw_omap timer7_fck_hw = {
|
|
.hw = {
|
|
.clk = &timer7_fck,
|
|
},
|
|
.clkdm_name = "l4ls_clkdm",
|
|
.clksel = timer2_to_7_clk_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_TIMER7_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(timer7_fck, timer2_to_7_ck_parents, timer1_fck_ops);
|
|
|
|
DEFINE_CLK_FIXED_FACTOR(cpsw_125mhz_gclk,
|
|
"dpll_core_m5_ck",
|
|
&dpll_core_m5_ck,
|
|
0x0,
|
|
1, 2);
|
|
|
|
static const struct clk_ops cpsw_fck_ops = {
|
|
.recalc_rate = &omap2_clksel_recalc,
|
|
.get_parent = &omap2_clksel_find_parent_index,
|
|
.set_parent = &omap2_clksel_set_parent,
|
|
};
|
|
|
|
static const struct clksel cpsw_cpts_rft_clkmux_sel[] = {
|
|
{ .parent = &dpll_core_m5_ck, .rates = div_1_0_rates },
|
|
{ .parent = &dpll_core_m4_ck, .rates = div_1_1_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static const char *cpsw_cpts_rft_ck_parents[] = {
|
|
"dpll_core_m5_ck", "dpll_core_m4_ck",
|
|
};
|
|
|
|
static struct clk cpsw_cpts_rft_clk;
|
|
|
|
static struct clk_hw_omap cpsw_cpts_rft_clk_hw = {
|
|
.hw = {
|
|
.clk = &cpsw_cpts_rft_clk,
|
|
},
|
|
.clkdm_name = "cpsw_125mhz_clkdm",
|
|
.clksel = cpsw_cpts_rft_clkmux_sel,
|
|
.clksel_reg = AM33XX_CM_CPTS_RFT_CLKSEL,
|
|
.clksel_mask = AM33XX_CLKSEL_0_0_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(cpsw_cpts_rft_clk, cpsw_cpts_rft_ck_parents, cpsw_fck_ops);
|
|
|
|
|
|
/* gpio */
|
|
static const char *gpio0_ck_parents[] = {
|
|
"clk_rc32k_ck", "clk_32768_ck", "clkdiv32k_ick",
|
|
};
|
|
|
|
static const struct clksel gpio0_dbclk_mux_sel[] = {
|
|
{ .parent = &clk_rc32k_ck, .rates = div_1_0_rates },
|
|
{ .parent = &clk_32768_ck, .rates = div_1_1_rates },
|
|
{ .parent = &clkdiv32k_ick, .rates = div_1_2_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static const struct clk_ops gpio_fck_ops = {
|
|
.recalc_rate = &omap2_clksel_recalc,
|
|
.get_parent = &omap2_clksel_find_parent_index,
|
|
.set_parent = &omap2_clksel_set_parent,
|
|
.init = &omap2_init_clk_clkdm,
|
|
};
|
|
|
|
static struct clk gpio0_dbclk_mux_ck;
|
|
|
|
static struct clk_hw_omap gpio0_dbclk_mux_ck_hw = {
|
|
.hw = {
|
|
.clk = &gpio0_dbclk_mux_ck,
|
|
},
|
|
.clkdm_name = "l4_wkup_clkdm",
|
|
.clksel = gpio0_dbclk_mux_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_GPIO0_DBCLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(gpio0_dbclk_mux_ck, gpio0_ck_parents, gpio_fck_ops);
|
|
|
|
DEFINE_CLK_GATE(gpio0_dbclk, "gpio0_dbclk_mux_ck", &gpio0_dbclk_mux_ck, 0x0,
|
|
AM33XX_CM_WKUP_GPIO0_CLKCTRL,
|
|
AM33XX_OPTFCLKEN_GPIO0_GDBCLK_SHIFT, 0x0, NULL);
|
|
|
|
DEFINE_CLK_GATE(gpio1_dbclk, "clkdiv32k_ick", &clkdiv32k_ick, 0x0,
|
|
AM33XX_CM_PER_GPIO1_CLKCTRL,
|
|
AM33XX_OPTFCLKEN_GPIO_1_GDBCLK_SHIFT, 0x0, NULL);
|
|
|
|
DEFINE_CLK_GATE(gpio2_dbclk, "clkdiv32k_ick", &clkdiv32k_ick, 0x0,
|
|
AM33XX_CM_PER_GPIO2_CLKCTRL,
|
|
AM33XX_OPTFCLKEN_GPIO_2_GDBCLK_SHIFT, 0x0, NULL);
|
|
|
|
DEFINE_CLK_GATE(gpio3_dbclk, "clkdiv32k_ick", &clkdiv32k_ick, 0x0,
|
|
AM33XX_CM_PER_GPIO3_CLKCTRL,
|
|
AM33XX_OPTFCLKEN_GPIO_3_GDBCLK_SHIFT, 0x0, NULL);
|
|
|
|
|
|
static const char *pruss_ck_parents[] = {
|
|
"l3_gclk", "dpll_disp_m2_ck",
|
|
};
|
|
|
|
static const struct clksel pruss_ocp_clk_mux_sel[] = {
|
|
{ .parent = &l3_gclk, .rates = div_1_0_rates },
|
|
{ .parent = &dpll_disp_m2_ck, .rates = div_1_1_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static struct clk pruss_ocp_gclk;
|
|
|
|
static struct clk_hw_omap pruss_ocp_gclk_hw = {
|
|
.hw = {
|
|
.clk = &pruss_ocp_gclk,
|
|
},
|
|
.clkdm_name = "pruss_ocp_clkdm",
|
|
.clksel = pruss_ocp_clk_mux_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_PRUSS_OCP_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_0_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(pruss_ocp_gclk, pruss_ck_parents, gpio_fck_ops);
|
|
|
|
static const char *lcd_ck_parents[] = {
|
|
"dpll_disp_m2_ck", "dpll_core_m5_ck", "dpll_per_m2_ck",
|
|
};
|
|
|
|
static const struct clksel lcd_clk_mux_sel[] = {
|
|
{ .parent = &dpll_disp_m2_ck, .rates = div_1_0_rates },
|
|
{ .parent = &dpll_core_m5_ck, .rates = div_1_1_rates },
|
|
{ .parent = &dpll_per_m2_ck, .rates = div_1_2_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static struct clk lcd_gclk;
|
|
|
|
static struct clk_hw_omap lcd_gclk_hw = {
|
|
.hw = {
|
|
.clk = &lcd_gclk,
|
|
},
|
|
.clkdm_name = "lcdc_clkdm",
|
|
.clksel = lcd_clk_mux_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_LCDC_PIXEL_CLK,
|
|
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK_FLAGS(lcd_gclk, lcd_ck_parents,
|
|
gpio_fck_ops, CLK_SET_RATE_PARENT);
|
|
|
|
DEFINE_CLK_FIXED_FACTOR(mmc_clk, "dpll_per_m2_ck", &dpll_per_m2_ck, 0x0, 1, 2);
|
|
|
|
static const char *gfx_ck_parents[] = {
|
|
"dpll_core_m4_ck", "dpll_per_m2_ck",
|
|
};
|
|
|
|
static const struct clksel gfx_clksel_sel[] = {
|
|
{ .parent = &dpll_core_m4_ck, .rates = div_1_0_rates },
|
|
{ .parent = &dpll_per_m2_ck, .rates = div_1_1_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static struct clk gfx_fclk_clksel_ck;
|
|
|
|
static struct clk_hw_omap gfx_fclk_clksel_ck_hw = {
|
|
.hw = {
|
|
.clk = &gfx_fclk_clksel_ck,
|
|
},
|
|
.clksel = gfx_clksel_sel,
|
|
.clksel_reg = AM33XX_CLKSEL_GFX_FCLK,
|
|
.clksel_mask = AM33XX_CLKSEL_GFX_FCLK_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(gfx_fclk_clksel_ck, gfx_ck_parents, gpio_fck_ops);
|
|
|
|
static const struct clk_div_table div_1_0_2_1_rates[] = {
|
|
{ .div = 1, .val = 0, },
|
|
{ .div = 2, .val = 1, },
|
|
{ .div = 0 },
|
|
};
|
|
|
|
DEFINE_CLK_DIVIDER_TABLE(gfx_fck_div_ck, "gfx_fclk_clksel_ck",
|
|
&gfx_fclk_clksel_ck, 0x0, AM33XX_CLKSEL_GFX_FCLK,
|
|
AM33XX_CLKSEL_0_0_SHIFT, AM33XX_CLKSEL_0_0_WIDTH,
|
|
0x0, div_1_0_2_1_rates, NULL);
|
|
|
|
static const char *sysclkout_ck_parents[] = {
|
|
"clk_32768_ck", "l3_gclk", "dpll_ddr_m2_ck", "dpll_per_m2_ck",
|
|
"lcd_gclk",
|
|
};
|
|
|
|
static const struct clksel sysclkout_pre_sel[] = {
|
|
{ .parent = &clk_32768_ck, .rates = div_1_0_rates },
|
|
{ .parent = &l3_gclk, .rates = div_1_1_rates },
|
|
{ .parent = &dpll_ddr_m2_ck, .rates = div_1_2_rates },
|
|
{ .parent = &dpll_per_m2_ck, .rates = div_1_3_rates },
|
|
{ .parent = &lcd_gclk, .rates = div_1_4_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static struct clk sysclkout_pre_ck;
|
|
|
|
static struct clk_hw_omap sysclkout_pre_ck_hw = {
|
|
.hw = {
|
|
.clk = &sysclkout_pre_ck,
|
|
},
|
|
.clksel = sysclkout_pre_sel,
|
|
.clksel_reg = AM33XX_CM_CLKOUT_CTRL,
|
|
.clksel_mask = AM33XX_CLKOUT2SOURCE_MASK,
|
|
};
|
|
|
|
DEFINE_STRUCT_CLK(sysclkout_pre_ck, sysclkout_ck_parents, gpio_fck_ops);
|
|
|
|
/* Divide by 8 clock rates with default clock is 1/1*/
|
|
static const struct clk_div_table div8_rates[] = {
|
|
{ .div = 1, .val = 0, },
|
|
{ .div = 2, .val = 1, },
|
|
{ .div = 3, .val = 2, },
|
|
{ .div = 4, .val = 3, },
|
|
{ .div = 5, .val = 4, },
|
|
{ .div = 6, .val = 5, },
|
|
{ .div = 7, .val = 6, },
|
|
{ .div = 8, .val = 7, },
|
|
{ .div = 0 },
|
|
};
|
|
|
|
DEFINE_CLK_DIVIDER_TABLE(clkout2_div_ck, "sysclkout_pre_ck", &sysclkout_pre_ck,
|
|
0x0, AM33XX_CM_CLKOUT_CTRL, AM33XX_CLKOUT2DIV_SHIFT,
|
|
AM33XX_CLKOUT2DIV_WIDTH, 0x0, div8_rates, NULL);
|
|
|
|
DEFINE_CLK_GATE(clkout2_ck, "clkout2_div_ck", &clkout2_div_ck, 0x0,
|
|
AM33XX_CM_CLKOUT_CTRL, AM33XX_CLKOUT2EN_SHIFT, 0x0, NULL);
|
|
|
|
static const char *wdt_ck_parents[] = {
|
|
"clk_rc32k_ck", "clkdiv32k_ick",
|
|
};
|
|
|
|
static const struct clksel wdt_clkmux_sel[] = {
|
|
{ .parent = &clk_rc32k_ck, .rates = div_1_0_rates },
|
|
{ .parent = &clkdiv32k_ick, .rates = div_1_1_rates },
|
|
{ .parent = NULL },
|
|
};
|
|
|
|
static struct clk wdt1_fck;
|
|
|
|
static struct clk_hw_omap wdt1_fck_hw = {
|
|
.hw = {
|
|
.clk = &wdt1_fck,
|
|
},
|
|
.clkdm_name = "l4_wkup_clkdm",
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.clksel = wdt_clkmux_sel,
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.clksel_reg = AM33XX_CLKSEL_WDT1_CLK,
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.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
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};
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DEFINE_STRUCT_CLK(wdt1_fck, wdt_ck_parents, gpio_fck_ops);
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/*
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* clkdev
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*/
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static struct omap_clk am33xx_clks[] = {
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CLK(NULL, "clk_32768_ck", &clk_32768_ck, CK_AM33XX),
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CLK(NULL, "clk_rc32k_ck", &clk_rc32k_ck, CK_AM33XX),
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CLK(NULL, "virt_19200000_ck", &virt_19200000_ck, CK_AM33XX),
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CLK(NULL, "virt_24000000_ck", &virt_24000000_ck, CK_AM33XX),
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CLK(NULL, "virt_25000000_ck", &virt_25000000_ck, CK_AM33XX),
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|
CLK(NULL, "virt_26000000_ck", &virt_26000000_ck, CK_AM33XX),
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CLK(NULL, "sys_clkin_ck", &sys_clkin_ck, CK_AM33XX),
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CLK(NULL, "tclkin_ck", &tclkin_ck, CK_AM33XX),
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CLK(NULL, "dpll_core_ck", &dpll_core_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_core_x2_ck", &dpll_core_x2_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_core_m4_ck", &dpll_core_m4_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_core_m5_ck", &dpll_core_m5_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_core_m6_ck", &dpll_core_m6_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck, CK_AM33XX),
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|
CLK("cpu0", NULL, &dpll_mpu_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_ddr_ck", &dpll_ddr_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_ddr_m2_ck", &dpll_ddr_m2_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_ddr_m2_div2_ck", &dpll_ddr_m2_div2_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_disp_ck", &dpll_disp_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_disp_m2_ck", &dpll_disp_m2_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_per_ck", &dpll_per_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_per_m2_ck", &dpll_per_m2_ck, CK_AM33XX),
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|
CLK(NULL, "dpll_per_m2_div4_wkupdm_ck", &dpll_per_m2_div4_wkupdm_ck, CK_AM33XX),
|
|
CLK(NULL, "dpll_per_m2_div4_ck", &dpll_per_m2_div4_ck, CK_AM33XX),
|
|
CLK(NULL, "adc_tsc_fck", &adc_tsc_fck, CK_AM33XX),
|
|
CLK(NULL, "cefuse_fck", &cefuse_fck, CK_AM33XX),
|
|
CLK(NULL, "clkdiv32k_ck", &clkdiv32k_ck, CK_AM33XX),
|
|
CLK(NULL, "clkdiv32k_ick", &clkdiv32k_ick, CK_AM33XX),
|
|
CLK(NULL, "dcan0_fck", &dcan0_fck, CK_AM33XX),
|
|
CLK("481cc000.d_can", NULL, &dcan0_fck, CK_AM33XX),
|
|
CLK(NULL, "dcan1_fck", &dcan1_fck, CK_AM33XX),
|
|
CLK("481d0000.d_can", NULL, &dcan1_fck, CK_AM33XX),
|
|
CLK(NULL, "debugss_ick", &debugss_ick, CK_AM33XX),
|
|
CLK(NULL, "pruss_ocp_gclk", &pruss_ocp_gclk, CK_AM33XX),
|
|
CLK(NULL, "mcasp0_fck", &mcasp0_fck, CK_AM33XX),
|
|
CLK(NULL, "mcasp1_fck", &mcasp1_fck, CK_AM33XX),
|
|
CLK(NULL, "mmu_fck", &mmu_fck, CK_AM33XX),
|
|
CLK(NULL, "smartreflex0_fck", &smartreflex0_fck, CK_AM33XX),
|
|
CLK(NULL, "smartreflex1_fck", &smartreflex1_fck, CK_AM33XX),
|
|
CLK(NULL, "timer1_fck", &timer1_fck, CK_AM33XX),
|
|
CLK(NULL, "timer2_fck", &timer2_fck, CK_AM33XX),
|
|
CLK(NULL, "timer3_fck", &timer3_fck, CK_AM33XX),
|
|
CLK(NULL, "timer4_fck", &timer4_fck, CK_AM33XX),
|
|
CLK(NULL, "timer5_fck", &timer5_fck, CK_AM33XX),
|
|
CLK(NULL, "timer6_fck", &timer6_fck, CK_AM33XX),
|
|
CLK(NULL, "timer7_fck", &timer7_fck, CK_AM33XX),
|
|
CLK(NULL, "usbotg_fck", &usbotg_fck, CK_AM33XX),
|
|
CLK(NULL, "ieee5000_fck", &ieee5000_fck, CK_AM33XX),
|
|
CLK(NULL, "wdt1_fck", &wdt1_fck, CK_AM33XX),
|
|
CLK(NULL, "l4_rtc_gclk", &l4_rtc_gclk, CK_AM33XX),
|
|
CLK(NULL, "l3_gclk", &l3_gclk, CK_AM33XX),
|
|
CLK(NULL, "dpll_core_m4_div2_ck", &dpll_core_m4_div2_ck, CK_AM33XX),
|
|
CLK(NULL, "l4hs_gclk", &l4hs_gclk, CK_AM33XX),
|
|
CLK(NULL, "l3s_gclk", &l3s_gclk, CK_AM33XX),
|
|
CLK(NULL, "l4fw_gclk", &l4fw_gclk, CK_AM33XX),
|
|
CLK(NULL, "l4ls_gclk", &l4ls_gclk, CK_AM33XX),
|
|
CLK(NULL, "clk_24mhz", &clk_24mhz, CK_AM33XX),
|
|
CLK(NULL, "sysclk_div_ck", &sysclk_div_ck, CK_AM33XX),
|
|
CLK(NULL, "cpsw_125mhz_gclk", &cpsw_125mhz_gclk, CK_AM33XX),
|
|
CLK(NULL, "cpsw_cpts_rft_clk", &cpsw_cpts_rft_clk, CK_AM33XX),
|
|
CLK(NULL, "gpio0_dbclk_mux_ck", &gpio0_dbclk_mux_ck, CK_AM33XX),
|
|
CLK(NULL, "gpio0_dbclk", &gpio0_dbclk, CK_AM33XX),
|
|
CLK(NULL, "gpio1_dbclk", &gpio1_dbclk, CK_AM33XX),
|
|
CLK(NULL, "gpio2_dbclk", &gpio2_dbclk, CK_AM33XX),
|
|
CLK(NULL, "gpio3_dbclk", &gpio3_dbclk, CK_AM33XX),
|
|
CLK(NULL, "lcd_gclk", &lcd_gclk, CK_AM33XX),
|
|
CLK(NULL, "mmc_clk", &mmc_clk, CK_AM33XX),
|
|
CLK(NULL, "gfx_fclk_clksel_ck", &gfx_fclk_clksel_ck, CK_AM33XX),
|
|
CLK(NULL, "gfx_fck_div_ck", &gfx_fck_div_ck, CK_AM33XX),
|
|
CLK(NULL, "sysclkout_pre_ck", &sysclkout_pre_ck, CK_AM33XX),
|
|
CLK(NULL, "clkout2_div_ck", &clkout2_div_ck, CK_AM33XX),
|
|
CLK(NULL, "timer_32k_ck", &clkdiv32k_ick, CK_AM33XX),
|
|
CLK(NULL, "timer_sys_ck", &sys_clkin_ck, CK_AM33XX),
|
|
};
|
|
|
|
|
|
static const char *enable_init_clks[] = {
|
|
"dpll_ddr_m2_ck",
|
|
"dpll_mpu_m2_ck",
|
|
"l3_gclk",
|
|
"l4hs_gclk",
|
|
"l4fw_gclk",
|
|
"l4ls_gclk",
|
|
};
|
|
|
|
int __init am33xx_clk_init(void)
|
|
{
|
|
struct omap_clk *c;
|
|
u32 cpu_clkflg;
|
|
|
|
if (soc_is_am33xx()) {
|
|
cpu_mask = RATE_IN_AM33XX;
|
|
cpu_clkflg = CK_AM33XX;
|
|
}
|
|
|
|
for (c = am33xx_clks; c < am33xx_clks + ARRAY_SIZE(am33xx_clks); c++) {
|
|
if (c->cpu & cpu_clkflg) {
|
|
clkdev_add(&c->lk);
|
|
if (!__clk_init(NULL, c->lk.clk))
|
|
omap2_init_clk_hw_omap_clocks(c->lk.clk);
|
|
}
|
|
}
|
|
|
|
omap2_clk_disable_autoidle_all();
|
|
|
|
omap2_clk_enable_init_clocks(enable_init_clks,
|
|
ARRAY_SIZE(enable_init_clks));
|
|
|
|
/* TRM ERRATA: Timer 3 & 6 default parent (TCLKIN) may not be always
|
|
* physically present, in such a case HWMOD enabling of
|
|
* clock would be failure with default parent. And timer
|
|
* probe thinks clock is already enabled, this leads to
|
|
* crash upon accessing timer 3 & 6 registers in probe.
|
|
* Fix by setting parent of both these timers to master
|
|
* oscillator clock.
|
|
*/
|
|
|
|
clk_set_parent(&timer3_fck, &sys_clkin_ck);
|
|
clk_set_parent(&timer6_fck, &sys_clkin_ck);
|
|
|
|
return 0;
|
|
}
|