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linux/arch/arm/mach-omap2/clock33xx_data.c

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/*
* AM33XX Clock data
*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
* Vaibhav Hiremath <hvaibhav@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/clk.h>
#include <plat/clkdev_omap.h>
#include <plat/am33xx.h>
#include "iomap.h"
#include "control.h"
#include "clock.h"
#include "cm.h"
#include "cm33xx.h"
#include "cm-regbits-33xx.h"
#include "prm.h"
/* Maximum DPLL multiplier, divider values for AM33XX */
#define AM33XX_MAX_DPLL_MULT 2047
#define AM33XX_MAX_DPLL_DIV 128
/* Modulemode control */
#define AM33XX_MODULEMODE_HWCTRL 0
#define AM33XX_MODULEMODE_SWCTRL 1
/* 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.
*/
static inline void am33xx_init_timer_parent(struct clk *clk)
{
omap2_clksel_set_parent(clk, clk->parent);
}
/* Root clocks */
/* RTC 32k */
static struct clk clk_32768_ck = {
.name = "clk_32768_ck",
.clkdm_name = "l4_rtc_clkdm",
.rate = 32768,
.ops = &clkops_null,
};
/* On-Chip 32KHz RC OSC */
static struct clk clk_rc32k_ck = {
.name = "clk_rc32k_ck",
.rate = 32000,
.ops = &clkops_null,
};
/* Crystal input clks */
static struct clk virt_24000000_ck = {
.name = "virt_24000000_ck",
.rate = 24000000,
.ops = &clkops_null,
};
static struct clk virt_25000000_ck = {
.name = "virt_25000000_ck",
.rate = 25000000,
.ops = &clkops_null,
};
/* Oscillator clock */
/* 19.2, 24, 25 or 26 MHz */
static const struct clksel sys_clkin_sel[] = {
{ .parent = &virt_19200000_ck, .rates = div_1_0_rates },
{ .parent = &virt_24000000_ck, .rates = div_1_1_rates },
{ .parent = &virt_25000000_ck, .rates = div_1_2_rates },
{ .parent = &virt_26000000_ck, .rates = div_1_3_rates },
{ .parent = NULL },
};
/* External clock - 12 MHz */
static struct clk tclkin_ck = {
.name = "tclkin_ck",
.rate = 12000000,
.ops = &clkops_null,
};
/*
* sys_clk in: input to the dpll and also used as funtional clock for,
* adc_tsc, smartreflex0-1, timer1-7, mcasp0-1, dcan0-1, cefuse
*
*/
static struct clk sys_clkin_ck = {
.name = "sys_clkin_ck",
.parent = &virt_24000000_ck,
.init = &omap2_init_clksel_parent,
.clksel_reg = AM33XX_CTRL_REGADDR(AM33XX_CONTROL_STATUS),
.clksel_mask = AM33XX_CONTROL_STATUS_SYSBOOT1_MASK,
.clksel = sys_clkin_sel,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
/* DPLL_CORE */
static struct dpll_data dpll_core_dd = {
.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_CORE,
.clk_bypass = &sys_clkin_ck,
.clk_ref = &sys_clkin_ck,
.control_reg = AM33XX_CM_CLKMODE_DPLL_CORE,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
.idlest_reg = AM33XX_CM_IDLEST_DPLL_CORE,
.mult_mask = AM33XX_DPLL_MULT_MASK,
.div1_mask = AM33XX_DPLL_DIV_MASK,
.enable_mask = AM33XX_DPLL_EN_MASK,
.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
.max_multiplier = AM33XX_MAX_DPLL_MULT,
.max_divider = AM33XX_MAX_DPLL_DIV,
.min_divider = 1,
};
/* CLKDCOLDO output */
static struct clk dpll_core_ck = {
.name = "dpll_core_ck",
.parent = &sys_clkin_ck,
.dpll_data = &dpll_core_dd,
.init = &omap2_init_dpll_parent,
.ops = &clkops_omap3_core_dpll_ops,
.recalc = &omap3_dpll_recalc,
};
static struct clk dpll_core_x2_ck = {
.name = "dpll_core_x2_ck",
.parent = &dpll_core_ck,
.flags = CLOCK_CLKOUTX2,
.ops = &clkops_null,
.recalc = &omap3_clkoutx2_recalc,
};
static const struct clksel dpll_core_m4_div[] = {
{ .parent = &dpll_core_x2_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_core_m4_ck = {
.name = "dpll_core_m4_ck",
.parent = &dpll_core_x2_ck,
.init = &omap2_init_clksel_parent,
.clksel = dpll_core_m4_div,
.clksel_reg = AM33XX_CM_DIV_M4_DPLL_CORE,
.clksel_mask = AM33XX_HSDIVIDER_CLKOUT1_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
static const struct clksel dpll_core_m5_div[] = {
{ .parent = &dpll_core_x2_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_core_m5_ck = {
.name = "dpll_core_m5_ck",
.parent = &dpll_core_x2_ck,
.init = &omap2_init_clksel_parent,
.clksel = dpll_core_m5_div,
.clksel_reg = AM33XX_CM_DIV_M5_DPLL_CORE,
.clksel_mask = AM33XX_HSDIVIDER_CLKOUT2_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
static const struct clksel dpll_core_m6_div[] = {
{ .parent = &dpll_core_x2_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_core_m6_ck = {
.name = "dpll_core_m6_ck",
.parent = &dpll_core_x2_ck,
.init = &omap2_init_clksel_parent,
.clksel = dpll_core_m6_div,
.clksel_reg = AM33XX_CM_DIV_M6_DPLL_CORE,
.clksel_mask = AM33XX_HSDIVIDER_CLKOUT3_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
/* DPLL_MPU */
static struct dpll_data dpll_mpu_dd = {
.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_MPU,
.clk_bypass = &sys_clkin_ck,
.clk_ref = &sys_clkin_ck,
.control_reg = AM33XX_CM_CLKMODE_DPLL_MPU,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
.idlest_reg = AM33XX_CM_IDLEST_DPLL_MPU,
.mult_mask = AM33XX_DPLL_MULT_MASK,
.div1_mask = AM33XX_DPLL_DIV_MASK,
.enable_mask = AM33XX_DPLL_EN_MASK,
.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
.max_multiplier = AM33XX_MAX_DPLL_MULT,
.max_divider = AM33XX_MAX_DPLL_DIV,
.min_divider = 1,
};
/* CLKOUT: fdpll/M2 */
static struct clk dpll_mpu_ck = {
.name = "dpll_mpu_ck",
.parent = &sys_clkin_ck,
.dpll_data = &dpll_mpu_dd,
.init = &omap2_init_dpll_parent,
.ops = &clkops_omap3_noncore_dpll_ops,
.recalc = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
};
/*
* TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2
* and ALT_CLK1/2)
*/
static const struct clksel dpll_mpu_m2_div[] = {
{ .parent = &dpll_mpu_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_mpu_m2_ck = {
.name = "dpll_mpu_m2_ck",
.clkdm_name = "mpu_clkdm",
.parent = &dpll_mpu_ck,
.clksel = dpll_mpu_m2_div,
.clksel_reg = AM33XX_CM_DIV_M2_DPLL_MPU,
.clksel_mask = AM33XX_DPLL_CLKOUT_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
/* DPLL_DDR */
static struct dpll_data dpll_ddr_dd = {
.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_DDR,
.clk_bypass = &sys_clkin_ck,
.clk_ref = &sys_clkin_ck,
.control_reg = AM33XX_CM_CLKMODE_DPLL_DDR,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
.idlest_reg = AM33XX_CM_IDLEST_DPLL_DDR,
.mult_mask = AM33XX_DPLL_MULT_MASK,
.div1_mask = AM33XX_DPLL_DIV_MASK,
.enable_mask = AM33XX_DPLL_EN_MASK,
.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
.max_multiplier = AM33XX_MAX_DPLL_MULT,
.max_divider = AM33XX_MAX_DPLL_DIV,
.min_divider = 1,
};
/* CLKOUT: fdpll/M2 */
static struct clk dpll_ddr_ck = {
.name = "dpll_ddr_ck",
.parent = &sys_clkin_ck,
.dpll_data = &dpll_ddr_dd,
.init = &omap2_init_dpll_parent,
.ops = &clkops_null,
.recalc = &omap3_dpll_recalc,
};
/*
* TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2
* and ALT_CLK1/2)
*/
static const struct clksel dpll_ddr_m2_div[] = {
{ .parent = &dpll_ddr_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_ddr_m2_ck = {
.name = "dpll_ddr_m2_ck",
.parent = &dpll_ddr_ck,
.clksel = dpll_ddr_m2_div,
.clksel_reg = AM33XX_CM_DIV_M2_DPLL_DDR,
.clksel_mask = AM33XX_DPLL_CLKOUT_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
/* emif_fck functional clock */
static struct clk dpll_ddr_m2_div2_ck = {
.name = "dpll_ddr_m2_div2_ck",
.clkdm_name = "l3_clkdm",
.parent = &dpll_ddr_m2_ck,
.ops = &clkops_null,
.fixed_div = 2,
.recalc = &omap_fixed_divisor_recalc,
};
/* DPLL_DISP */
static struct dpll_data dpll_disp_dd = {
.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_DISP,
.clk_bypass = &sys_clkin_ck,
.clk_ref = &sys_clkin_ck,
.control_reg = AM33XX_CM_CLKMODE_DPLL_DISP,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
.idlest_reg = AM33XX_CM_IDLEST_DPLL_DISP,
.mult_mask = AM33XX_DPLL_MULT_MASK,
.div1_mask = AM33XX_DPLL_DIV_MASK,
.enable_mask = AM33XX_DPLL_EN_MASK,
.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
.max_multiplier = AM33XX_MAX_DPLL_MULT,
.max_divider = AM33XX_MAX_DPLL_DIV,
.min_divider = 1,
};
/* CLKOUT: fdpll/M2 */
static struct clk dpll_disp_ck = {
.name = "dpll_disp_ck",
.parent = &sys_clkin_ck,
.dpll_data = &dpll_disp_dd,
.init = &omap2_init_dpll_parent,
.ops = &clkops_null,
.recalc = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
};
/*
* TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2
* and ALT_CLK1/2)
*/
static const struct clksel dpll_disp_m2_div[] = {
{ .parent = &dpll_disp_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_disp_m2_ck = {
.name = "dpll_disp_m2_ck",
.parent = &dpll_disp_ck,
.clksel = dpll_disp_m2_div,
.clksel_reg = AM33XX_CM_DIV_M2_DPLL_DISP,
.clksel_mask = AM33XX_DPLL_CLKOUT_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
/* DPLL_PER */
static struct dpll_data dpll_per_dd = {
.mult_div1_reg = AM33XX_CM_CLKSEL_DPLL_PERIPH,
.clk_bypass = &sys_clkin_ck,
.clk_ref = &sys_clkin_ck,
.control_reg = AM33XX_CM_CLKMODE_DPLL_PER,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
.idlest_reg = AM33XX_CM_IDLEST_DPLL_PER,
.mult_mask = AM33XX_DPLL_MULT_PERIPH_MASK,
.div1_mask = AM33XX_DPLL_PER_DIV_MASK,
.enable_mask = AM33XX_DPLL_EN_MASK,
.idlest_mask = AM33XX_ST_DPLL_CLK_MASK,
.max_multiplier = AM33XX_MAX_DPLL_MULT,
.max_divider = AM33XX_MAX_DPLL_DIV,
.min_divider = 1,
.flags = DPLL_J_TYPE,
};
/* CLKDCOLDO */
static struct clk dpll_per_ck = {
.name = "dpll_per_ck",
.parent = &sys_clkin_ck,
.dpll_data = &dpll_per_dd,
.init = &omap2_init_dpll_parent,
.ops = &clkops_null,
.recalc = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
};
/* CLKOUT: fdpll/M2 */
static const struct clksel dpll_per_m2_div[] = {
{ .parent = &dpll_per_ck, .rates = div31_1to31_rates },
{ .parent = NULL },
};
static struct clk dpll_per_m2_ck = {
.name = "dpll_per_m2_ck",
.parent = &dpll_per_ck,
.clksel = dpll_per_m2_div,
.clksel_reg = AM33XX_CM_DIV_M2_DPLL_PER,
.clksel_mask = AM33XX_DPLL_CLKOUT_DIV_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
static struct clk dpll_per_m2_div4_wkupdm_ck = {
.name = "dpll_per_m2_div4_wkupdm_ck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &dpll_per_m2_ck,
.fixed_div = 4,
.ops = &clkops_null,
.recalc = &omap_fixed_divisor_recalc,
};
static struct clk dpll_per_m2_div4_ck = {
.name = "dpll_per_m2_div4_ck",
.clkdm_name = "l4ls_clkdm",
.parent = &dpll_per_m2_ck,
.fixed_div = 4,
.ops = &clkops_null,
.recalc = &omap_fixed_divisor_recalc,
};
static struct clk l3_gclk = {
.name = "l3_gclk",
.clkdm_name = "l3_clkdm",
.parent = &dpll_core_m4_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk dpll_core_m4_div2_ck = {
.name = "dpll_core_m4_div2_ck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &dpll_core_m4_ck,
.ops = &clkops_null,
.fixed_div = 2,
.recalc = &omap_fixed_divisor_recalc,
};
static struct clk l4_rtc_gclk = {
.name = "l4_rtc_gclk",
.parent = &dpll_core_m4_ck,
.ops = &clkops_null,
.fixed_div = 2,
.recalc = &omap_fixed_divisor_recalc,
};
static struct clk clk_24mhz = {
.name = "clk_24mhz",
.parent = &dpll_per_m2_ck,
.fixed_div = 8,
.ops = &clkops_null,
.recalc = &omap_fixed_divisor_recalc,
};
/*
* Below clock nodes describes clockdomains derived out
* of core clock.
*/
static struct clk l4hs_gclk = {
.name = "l4hs_gclk",
.clkdm_name = "l4hs_clkdm",
.parent = &dpll_core_m4_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk l3s_gclk = {
.name = "l3s_gclk",
.clkdm_name = "l3s_clkdm",
.parent = &dpll_core_m4_div2_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk l4fw_gclk = {
.name = "l4fw_gclk",
.clkdm_name = "l4fw_clkdm",
.parent = &dpll_core_m4_div2_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk l4ls_gclk = {
.name = "l4ls_gclk",
.clkdm_name = "l4ls_clkdm",
.parent = &dpll_core_m4_div2_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk sysclk_div_ck = {
.name = "sysclk_div_ck",
.parent = &dpll_core_m4_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
/*
* In order to match the clock domain with hwmod clockdomain entry,
* separate clock nodes is required for the modules which are
* directly getting their funtioncal clock from sys_clkin.
*/
static struct clk adc_tsc_fck = {
.name = "adc_tsc_fck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk dcan0_fck = {
.name = "dcan0_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk dcan1_fck = {
.name = "dcan1_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk mcasp0_fck = {
.name = "mcasp0_fck",
.clkdm_name = "l3s_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk mcasp1_fck = {
.name = "mcasp1_fck",
.clkdm_name = "l3s_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk smartreflex0_fck = {
.name = "smartreflex0_fck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk smartreflex1_fck = {
.name = "smartreflex1_fck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &sys_clkin_ck,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
/*
* 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
*/
static struct clk debugss_ick = {
.name = "debugss_ick",
.clkdm_name = "l3_aon_clkdm",
.parent = &dpll_core_m4_ck,
.ops = &clkops_omap2_dflt,
.enable_reg = AM33XX_CM_WKUP_DEBUGSS_CLKCTRL,
.enable_bit = AM33XX_MODULEMODE_SWCTRL,
.recalc = &followparent_recalc,
};
static struct clk mmu_fck = {
.name = "mmu_fck",
.clkdm_name = "gfx_l3_clkdm",
.parent = &dpll_core_m4_ck,
.ops = &clkops_omap2_dflt,
.enable_reg = AM33XX_CM_GFX_MMUDATA_CLKCTRL,
.enable_bit = AM33XX_MODULEMODE_SWCTRL,
.recalc = &followparent_recalc,
};
static struct clk cefuse_fck = {
.name = "cefuse_fck",
.clkdm_name = "l4_cefuse_clkdm",
.parent = &sys_clkin_ck,
.enable_reg = AM33XX_CM_CEFUSE_CEFUSE_CLKCTRL,
.enable_bit = AM33XX_MODULEMODE_SWCTRL,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
/*
* clkdiv32 is generated from fixed division of 732.4219
*/
static struct clk clkdiv32k_ick = {
.name = "clkdiv32k_ick",
.clkdm_name = "clk_24mhz_clkdm",
.rate = 32768,
.parent = &clk_24mhz,
.enable_reg = AM33XX_CM_PER_CLKDIV32K_CLKCTRL,
.enable_bit = AM33XX_MODULEMODE_SWCTRL,
.ops = &clkops_omap2_dflt,
};
static struct clk usbotg_fck = {
.name = "usbotg_fck",
.clkdm_name = "l3s_clkdm",
.parent = &dpll_per_ck,
.enable_reg = AM33XX_CM_CLKDCOLDO_DPLL_PER,
.enable_bit = AM33XX_ST_DPLL_CLKDCOLDO_SHIFT,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
static struct clk ieee5000_fck = {
.name = "ieee5000_fck",
.clkdm_name = "l3s_clkdm",
.parent = &dpll_core_m4_div2_ck,
.enable_reg = AM33XX_CM_PER_IEEE5000_CLKCTRL,
.enable_bit = AM33XX_MODULEMODE_SWCTRL,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
/* 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 struct clk timer1_fck = {
.name = "timer1_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &omap2_init_clksel_parent,
.clksel = timer1_clkmux_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER1MS_CLK,
.clksel_mask = AM33XX_CLKSEL_0_2_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
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 struct clk timer2_fck = {
.name = "timer2_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &omap2_init_clksel_parent,
.clksel = timer2_to_7_clk_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER2_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk timer3_fck = {
.name = "timer3_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &am33xx_init_timer_parent,
.clksel = timer2_to_7_clk_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER3_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk timer4_fck = {
.name = "timer4_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &omap2_init_clksel_parent,
.clksel = timer2_to_7_clk_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER4_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk timer5_fck = {
.name = "timer5_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &omap2_init_clksel_parent,
.clksel = timer2_to_7_clk_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER5_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk timer6_fck = {
.name = "timer6_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &am33xx_init_timer_parent,
.clksel = timer2_to_7_clk_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER6_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk timer7_fck = {
.name = "timer7_fck",
.clkdm_name = "l4ls_clkdm",
.parent = &sys_clkin_ck,
.init = &omap2_init_clksel_parent,
.clksel = timer2_to_7_clk_sel,
.clksel_reg = AM33XX_CLKSEL_TIMER7_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk cpsw_125mhz_gclk = {
.name = "cpsw_125mhz_gclk",
.clkdm_name = "cpsw_125mhz_clkdm",
.parent = &dpll_core_m5_ck,
.ops = &clkops_null,
.fixed_div = 2,
.recalc = &omap_fixed_divisor_recalc,
};
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 struct clk cpsw_cpts_rft_clk = {
.name = "cpsw_cpts_rft_clk",
.clkdm_name = "cpsw_125mhz_clkdm",
.parent = &dpll_core_m5_ck,
.clksel = cpsw_cpts_rft_clkmux_sel,
.clksel_reg = AM33XX_CM_CPTS_RFT_CLKSEL,
.clksel_mask = AM33XX_CLKSEL_0_0_MASK,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
/* gpio */
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 struct clk gpio0_dbclk_mux_ck = {
.name = "gpio0_dbclk_mux_ck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &clk_rc32k_ck,
.init = &omap2_init_clksel_parent,
.clksel = gpio0_dbclk_mux_sel,
.clksel_reg = AM33XX_CLKSEL_GPIO0_DBCLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
static struct clk gpio0_dbclk = {
.name = "gpio0_dbclk",
.clkdm_name = "l4_wkup_clkdm",
.parent = &gpio0_dbclk_mux_ck,
.enable_reg = AM33XX_CM_WKUP_GPIO0_CLKCTRL,
.enable_bit = AM33XX_OPTFCLKEN_GPIO0_GDBCLK_SHIFT,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
static struct clk gpio1_dbclk = {
.name = "gpio1_dbclk",
.clkdm_name = "l4ls_clkdm",
.parent = &clkdiv32k_ick,
.enable_reg = AM33XX_CM_PER_GPIO1_CLKCTRL,
.enable_bit = AM33XX_OPTFCLKEN_GPIO_1_GDBCLK_SHIFT,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
static struct clk gpio2_dbclk = {
.name = "gpio2_dbclk",
.clkdm_name = "l4ls_clkdm",
.parent = &clkdiv32k_ick,
.enable_reg = AM33XX_CM_PER_GPIO2_CLKCTRL,
.enable_bit = AM33XX_OPTFCLKEN_GPIO_2_GDBCLK_SHIFT,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
static struct clk gpio3_dbclk = {
.name = "gpio3_dbclk",
.clkdm_name = "l4ls_clkdm",
.parent = &clkdiv32k_ick,
.enable_reg = AM33XX_CM_PER_GPIO3_CLKCTRL,
.enable_bit = AM33XX_OPTFCLKEN_GPIO_3_GDBCLK_SHIFT,
.ops = &clkops_omap2_dflt,
.recalc = &followparent_recalc,
};
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 = {
.name = "pruss_ocp_gclk",
.clkdm_name = "pruss_ocp_clkdm",
.parent = &l3_gclk,
.init = &omap2_init_clksel_parent,
.clksel = pruss_ocp_clk_mux_sel,
.clksel_reg = AM33XX_CLKSEL_PRUSS_OCP_CLK,
.clksel_mask = AM33XX_CLKSEL_0_0_MASK,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
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 = {
.name = "lcd_gclk",
.clkdm_name = "lcdc_clkdm",
.parent = &dpll_disp_m2_ck,
.init = &omap2_init_clksel_parent,
.clksel = lcd_clk_mux_sel,
.clksel_reg = AM33XX_CLKSEL_LCDC_PIXEL_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
static struct clk mmc_clk = {
.name = "mmc_clk",
.clkdm_name = "l4ls_clkdm",
.parent = &dpll_per_m2_ck,
.ops = &clkops_null,
.fixed_div = 2,
.recalc = &omap_fixed_divisor_recalc,
};
static struct clk mmc2_fck = {
.name = "mmc2_fck",
.clkdm_name = "l3s_clkdm",
.parent = &mmc_clk,
.ops = &clkops_null,
.recalc = &followparent_recalc,
};
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 = {
.name = "gfx_fclk_clksel_ck",
.parent = &dpll_core_m4_ck,
.clksel = gfx_clksel_sel,
.ops = &clkops_null,
.clksel_reg = AM33XX_CLKSEL_GFX_FCLK,
.clksel_mask = AM33XX_CLKSEL_GFX_FCLK_MASK,
.recalc = &omap2_clksel_recalc,
};
static const struct clksel_rate div_1_0_2_1_rates[] = {
{ .div = 1, .val = 0, .flags = RATE_IN_AM33XX },
{ .div = 2, .val = 1, .flags = RATE_IN_AM33XX },
{ .div = 0 },
};
static const struct clksel gfx_div_sel[] = {
{ .parent = &gfx_fclk_clksel_ck, .rates = div_1_0_2_1_rates },
{ .parent = NULL },
};
static struct clk gfx_fck_div_ck = {
.name = "gfx_fck_div_ck",
.clkdm_name = "gfx_l3_clkdm",
.parent = &gfx_fclk_clksel_ck,
.init = &omap2_init_clksel_parent,
.clksel = gfx_div_sel,
.clksel_reg = AM33XX_CLKSEL_GFX_FCLK,
.clksel_mask = AM33XX_CLKSEL_0_0_MASK,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
.ops = &clkops_null,
};
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 = {
.name = "sysclkout_pre_ck",
.parent = &clk_32768_ck,
.init = &omap2_init_clksel_parent,
.clksel = sysclkout_pre_sel,
.clksel_reg = AM33XX_CM_CLKOUT_CTRL,
.clksel_mask = AM33XX_CLKOUT2SOURCE_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
/* Divide by 8 clock rates with default clock is 1/1*/
static const struct clksel_rate div8_rates[] = {
{ .div = 1, .val = 0, .flags = RATE_IN_AM33XX },
{ .div = 2, .val = 1, .flags = RATE_IN_AM33XX },
{ .div = 3, .val = 2, .flags = RATE_IN_AM33XX },
{ .div = 4, .val = 3, .flags = RATE_IN_AM33XX },
{ .div = 5, .val = 4, .flags = RATE_IN_AM33XX },
{ .div = 6, .val = 5, .flags = RATE_IN_AM33XX },
{ .div = 7, .val = 6, .flags = RATE_IN_AM33XX },
{ .div = 8, .val = 7, .flags = RATE_IN_AM33XX },
{ .div = 0 },
};
static const struct clksel clkout2_div[] = {
{ .parent = &sysclkout_pre_ck, .rates = div8_rates },
{ .parent = NULL },
};
static struct clk clkout2_ck = {
.name = "clkout2_ck",
.parent = &sysclkout_pre_ck,
.ops = &clkops_omap2_dflt,
.clksel = clkout2_div,
.clksel_reg = AM33XX_CM_CLKOUT_CTRL,
.clksel_mask = AM33XX_CLKOUT2DIV_MASK,
.enable_reg = AM33XX_CM_CLKOUT_CTRL,
.enable_bit = AM33XX_CLKOUT2EN_SHIFT,
.recalc = &omap2_clksel_recalc,
.round_rate = &omap2_clksel_round_rate,
.set_rate = &omap2_clksel_set_rate,
};
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 = {
.name = "wdt1_fck",
.clkdm_name = "l4_wkup_clkdm",
.parent = &clk_rc32k_ck,
.init = &omap2_init_clksel_parent,
.clksel = wdt_clkmux_sel,
.clksel_reg = AM33XX_CLKSEL_WDT1_CLK,
.clksel_mask = AM33XX_CLKSEL_0_1_MASK,
.ops = &clkops_null,
.recalc = &omap2_clksel_recalc,
};
/*
* clkdev
*/
static struct omap_clk am33xx_clks[] = {
CLK(NULL, "clk_32768_ck", &clk_32768_ck, CK_AM33XX),
CLK(NULL, "clk_rc32k_ck", &clk_rc32k_ck, CK_AM33XX),
CLK(NULL, "virt_19200000_ck", &virt_19200000_ck, CK_AM33XX),
CLK(NULL, "virt_24000000_ck", &virt_24000000_ck, CK_AM33XX),
CLK(NULL, "virt_25000000_ck", &virt_25000000_ck, CK_AM33XX),
CLK(NULL, "virt_26000000_ck", &virt_26000000_ck, CK_AM33XX),
CLK(NULL, "sys_clkin_ck", &sys_clkin_ck, CK_AM33XX),
CLK(NULL, "tclkin_ck", &tclkin_ck, CK_AM33XX),
CLK(NULL, "dpll_core_ck", &dpll_core_ck, CK_AM33XX),
CLK(NULL, "dpll_core_x2_ck", &dpll_core_x2_ck, CK_AM33XX),
CLK(NULL, "dpll_core_m4_ck", &dpll_core_m4_ck, CK_AM33XX),
CLK(NULL, "dpll_core_m5_ck", &dpll_core_m5_ck, CK_AM33XX),
CLK(NULL, "dpll_core_m6_ck", &dpll_core_m6_ck, CK_AM33XX),
CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck, CK_AM33XX),
CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck, CK_AM33XX),
CLK(NULL, "dpll_ddr_ck", &dpll_ddr_ck, CK_AM33XX),
CLK(NULL, "dpll_ddr_m2_ck", &dpll_ddr_m2_ck, CK_AM33XX),
CLK(NULL, "dpll_ddr_m2_div2_ck", &dpll_ddr_m2_div2_ck, CK_AM33XX),
CLK(NULL, "dpll_disp_ck", &dpll_disp_ck, CK_AM33XX),
CLK(NULL, "dpll_disp_m2_ck", &dpll_disp_m2_ck, CK_AM33XX),
CLK(NULL, "dpll_per_ck", &dpll_per_ck, CK_AM33XX),
CLK(NULL, "dpll_per_m2_ck", &dpll_per_m2_ck, CK_AM33XX),
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_ick", &clkdiv32k_ick, CK_AM33XX),
CLK(NULL, "dcan0_fck", &dcan0_fck, CK_AM33XX),
CLK(NULL, "dcan1_fck", &dcan1_fck, CK_AM33XX),
CLK(NULL, "debugss_ick", &debugss_ick, CK_AM33XX),
CLK(NULL, "pruss_ocp_gclk", &pruss_ocp_gclk, CK_AM33XX),
CLK("davinci-mcasp.0", NULL, &mcasp0_fck, CK_AM33XX),
CLK("davinci-mcasp.1", NULL, &mcasp1_fck, CK_AM33XX),
CLK("NULL", "mmc2_fck", &mmc2_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, "gpt1_fck", &timer1_fck, CK_AM33XX),
CLK(NULL, "gpt2_fck", &timer2_fck, CK_AM33XX),
CLK(NULL, "gpt3_fck", &timer3_fck, CK_AM33XX),
CLK(NULL, "gpt4_fck", &timer4_fck, CK_AM33XX),
CLK(NULL, "gpt5_fck", &timer5_fck, CK_AM33XX),
CLK(NULL, "gpt6_fck", &timer6_fck, CK_AM33XX),
CLK(NULL, "gpt7_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_ck", &clkout2_ck, CK_AM33XX),
};
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;
}
clk_init(&omap2_clk_functions);
for (c = am33xx_clks; c < am33xx_clks + ARRAY_SIZE(am33xx_clks); c++)
clk_preinit(c->lk.clk);
for (c = am33xx_clks; c < am33xx_clks + ARRAY_SIZE(am33xx_clks); c++) {
if (c->cpu & cpu_clkflg) {
clkdev_add(&c->lk);
clk_register(c->lk.clk);
omap2_init_clk_clkdm(c->lk.clk);
}
}
recalculate_root_clocks();
/*
* Only enable those clocks we will need, let the drivers
* enable other clocks as necessary
*/
clk_enable_init_clocks();
return 0;
}
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