diff options
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/cclock33xx_data.c | 961 |
1 files changed, 961 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c new file mode 100644 index 000000000000..ea64ad606759 --- /dev/null +++ b/arch/arm/mach-omap2/cclock33xx_data.c @@ -0,0 +1,961 @@ +/* + * 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-private.h> +#include <linux/clkdev.h> +#include <linux/io.h> + +#include "am33xx.h" +#include "soc.h" +#include "iomap.h" +#include "clock.h" +#include "control.h" +#include "cm.h" +#include "cm33xx.h" +#include "cm-regbits-33xx.h" +#include "prm.h" + +/* Modulemode control */ +#define AM33XX_MODULEMODE_HWCTRL_SHIFT 0 +#define AM33XX_MODULEMODE_SWCTRL_SHIFT 1 + +/*LIST_HEAD(clocks);*/ + +/* Root clocks */ + +/* RTC 32k */ +DEFINE_CLK_FIXED_RATE(clk_32768_ck, CLK_IS_ROOT, 32768, 0x0); + +/* On-Chip 32KHz RC OSC */ +DEFINE_CLK_FIXED_RATE(clk_rc32k_ck, CLK_IS_ROOT, 32000, 0x0); + +/* Crystal input clks */ +DEFINE_CLK_FIXED_RATE(virt_19200000_ck, CLK_IS_ROOT, 19200000, 0x0); + +DEFINE_CLK_FIXED_RATE(virt_24000000_ck, CLK_IS_ROOT, 24000000, 0x0); + +DEFINE_CLK_FIXED_RATE(virt_25000000_ck, CLK_IS_ROOT, 25000000, 0x0); + +DEFINE_CLK_FIXED_RATE(virt_26000000_ck, CLK_IS_ROOT, 26000000, 0x0); + +/* Oscillator clock */ +/* 19.2, 24, 25 or 26 MHz */ +static const char *sys_clkin_ck_parents[] = { + "virt_19200000_ck", "virt_24000000_ck", "virt_25000000_ck", + "virt_26000000_ck", +}; + +/* + * 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 + * + */ +DEFINE_CLK_MUX(sys_clkin_ck, sys_clkin_ck_parents, NULL, 0x0, + AM33XX_CTRL_REGADDR(AM33XX_CONTROL_STATUS), + AM33XX_CONTROL_STATUS_SYSBOOT1_SHIFT, + AM33XX_CONTROL_STATUS_SYSBOOT1_WIDTH, + 0, NULL); + +/* External clock - 12 MHz */ +DEFINE_CLK_FIXED_RATE(tclkin_ck, CLK_IS_ROOT, 12000000, 0x0); + +/* Module clocks and DPLL outputs */ + +/* 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 = 2047, + .max_divider = 128, + .min_divider = 1, +}; + +/* CLKDCOLDO output */ +static const char *dpll_core_ck_parents[] = { + "sys_clkin_ck", +}; + +static struct clk dpll_core_ck; + +static const struct clk_ops dpll_core_ck_ops = { + .recalc_rate = &omap3_dpll_recalc, + .get_parent = &omap2_init_dpll_parent, +}; + +static struct clk_hw_omap dpll_core_ck_hw = { + .hw = { + .clk = &dpll_core_ck, + }, + .dpll_data = &dpll_core_dd, + .ops = &clkhwops_omap3_dpll, +}; + +DEFINE_STRUCT_CLK(dpll_core_ck, dpll_core_ck_parents, dpll_core_ck_ops); + +static const char *dpll_core_x2_ck_parents[] = { + "dpll_core_ck", +}; + +static struct clk dpll_core_x2_ck; + +static const struct clk_ops dpll_x2_ck_ops = { + .recalc_rate = &omap3_clkoutx2_recalc, +}; + +static struct clk_hw_omap dpll_core_x2_ck_hw = { + .hw = { + .clk = &dpll_core_x2_ck, + }, + .flags = CLOCK_CLKOUTX2, +}; + +DEFINE_STRUCT_CLK(dpll_core_x2_ck, dpll_core_x2_ck_parents, dpll_x2_ck_ops); + +DEFINE_CLK_DIVIDER(dpll_core_m4_ck, "dpll_core_x2_ck", &dpll_core_x2_ck, + 0x0, AM33XX_CM_DIV_M4_DPLL_CORE, + AM33XX_HSDIVIDER_CLKOUT1_DIV_SHIFT, + AM33XX_HSDIVIDER_CLKOUT1_DIV_WIDTH, CLK_DIVIDER_ONE_BASED, + NULL); + +DEFINE_CLK_DIVIDER(dpll_core_m5_ck, "dpll_core_x2_ck", &dpll_core_x2_ck, + 0x0, AM33XX_CM_DIV_M5_DPLL_CORE, + AM33XX_HSDIVIDER_CLKOUT2_DIV_SHIFT, + AM33XX_HSDIVIDER_CLKOUT2_DIV_WIDTH, + CLK_DIVIDER_ONE_BASED, NULL); + +DEFINE_CLK_DIVIDER(dpll_core_m6_ck, "dpll_core_x2_ck", &dpll_core_x2_ck, + 0x0, AM33XX_CM_DIV_M6_DPLL_CORE, + AM33XX_HSDIVIDER_CLKOUT3_DIV_SHIFT, + AM33XX_HSDIVIDER_CLKOUT3_DIV_WIDTH, + CLK_DIVIDER_ONE_BASED, NULL); + + +/* 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 = 2047, + .max_divider = 128, + .min_divider = 1, +}; + +/* CLKOUT: fdpll/M2 */ +static struct clk dpll_mpu_ck; + +static const struct clk_ops dpll_mpu_ck_ops = { + .enable = &omap3_noncore_dpll_enable, + .disable = &omap3_noncore_dpll_disable, + .recalc_rate = &omap3_dpll_recalc, + .round_rate = &omap2_dpll_round_rate, + .set_rate = &omap3_noncore_dpll_set_rate, + .get_parent = &omap2_init_dpll_parent, +}; + +static struct clk_hw_omap dpll_mpu_ck_hw = { + .hw = { + .clk = &dpll_mpu_ck, + }, + .dpll_data = &dpll_mpu_dd, + .ops = &clkhwops_omap3_dpll, +}; + +DEFINE_STRUCT_CLK(dpll_mpu_ck, dpll_core_ck_parents, dpll_mpu_ck_ops); + +/* + * TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2 + * and ALT_CLK1/2) + */ +DEFINE_CLK_DIVIDER(dpll_mpu_m2_ck, "dpll_mpu_ck", &dpll_mpu_ck, + 0x0, AM33XX_CM_DIV_M2_DPLL_MPU, AM33XX_DPLL_CLKOUT_DIV_SHIFT, + AM33XX_DPLL_CLKOUT_DIV_WIDTH, CLK_DIVIDER_ONE_BASED, NULL); + +/* 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 = 2047, + .max_divider = 128, + .min_divider = 1, +}; + +/* CLKOUT: fdpll/M2 */ +static struct clk dpll_ddr_ck; + +static const struct clk_ops dpll_ddr_ck_ops = { + .recalc_rate = &omap3_dpll_recalc, + .get_parent = &omap2_init_dpll_parent, + .round_rate = &omap2_dpll_round_rate, + .set_rate = &omap3_noncore_dpll_set_rate, +}; + +static struct clk_hw_omap dpll_ddr_ck_hw = { + .hw = { + .clk = &dpll_ddr_ck, + }, + .dpll_data = &dpll_ddr_dd, + .ops = &clkhwops_omap3_dpll, +}; + +DEFINE_STRUCT_CLK(dpll_ddr_ck, dpll_core_ck_parents, dpll_ddr_ck_ops); + +/* + * TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2 + * and ALT_CLK1/2) + */ +DEFINE_CLK_DIVIDER(dpll_ddr_m2_ck, "dpll_ddr_ck", &dpll_ddr_ck, + 0x0, AM33XX_CM_DIV_M2_DPLL_DDR, + AM33XX_DPLL_CLKOUT_DIV_SHIFT, AM33XX_DPLL_CLKOUT_DIV_WIDTH, + CLK_DIVIDER_ONE_BASED, NULL); + +/* emif_fck functional clock */ +DEFINE_CLK_FIXED_FACTOR(dpll_ddr_m2_div2_ck, "dpll_ddr_m2_ck", &dpll_ddr_m2_ck, + 0x0, 1, 2); + +/* 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 = 2047, + .max_divider = 128, + .min_divider = 1, +}; + +/* CLKOUT: fdpll/M2 */ +static struct clk dpll_disp_ck; + +static struct clk_hw_omap dpll_disp_ck_hw = { + .hw = { + .clk = &dpll_disp_ck, + }, + .dpll_data = &dpll_disp_dd, + .ops = &clkhwops_omap3_dpll, +}; + +DEFINE_STRUCT_CLK(dpll_disp_ck, dpll_core_ck_parents, dpll_ddr_ck_ops); + +/* + * TODO: Add clksel here (sys_clkin, CORE_CLKOUTM6, PER_CLKOUTM2 + * and ALT_CLK1/2) + */ +DEFINE_CLK_DIVIDER(dpll_disp_m2_ck, "dpll_disp_ck", &dpll_disp_ck, 0x0, + AM33XX_CM_DIV_M2_DPLL_DISP, AM33XX_DPLL_CLKOUT_DIV_SHIFT, + AM33XX_DPLL_CLKOUT_DIV_WIDTH, CLK_DIVIDER_ONE_BASED, NULL); + +/* 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 = 2047, + .max_divider = 128, + .min_divider = 1, + .flags = DPLL_J_TYPE, +}; + +/* CLKDCOLDO */ +static struct clk dpll_per_ck; + +static struct clk_hw_omap dpll_per_ck_hw = { + .hw = { + .clk = &dpll_per_ck, + }, + .dpll_data = &dpll_per_dd, + .ops = &clkhwops_omap3_dpll, +}; + +DEFINE_STRUCT_CLK(dpll_per_ck, dpll_core_ck_parents, dpll_ddr_ck_ops); + +/* CLKOUT: fdpll/M2 */ +DEFINE_CLK_DIVIDER(dpll_per_m2_ck, "dpll_per_ck", &dpll_per_ck, 0x0, + AM33XX_CM_DIV_M2_DPLL_PER, AM33XX_DPLL_CLKOUT_DIV_SHIFT, + AM33XX_DPLL_CLKOUT_DIV_WIDTH, CLK_DIVIDER_ONE_BASED, + NULL); + +DEFINE_CLK_FIXED_FACTOR(dpll_per_m2_div4_wkupdm_ck, "dpll_per_m2_ck", + &dpll_per_m2_ck, 0x0, 1, 4); + +DEFINE_CLK_FIXED_FACTOR(dpll_per_m2_div4_ck, "dpll_per_m2_ck", + &dpll_per_m2_ck, 0x0, 1, 4); + +DEFINE_CLK_FIXED_FACTOR(dpll_core_m4_div2_ck, "dpll_core_m4_ck", + &dpll_core_m4_ck, 0x0, 1, 2); + +DEFINE_CLK_FIXED_FACTOR(l4_rtc_gclk, "dpll_core_m4_ck", &dpll_core_m4_ck, 0x0, + 1, 2); + +DEFINE_CLK_FIXED_FACTOR(clk_24mhz, "dpll_per_m2_ck", &dpll_per_m2_ck, 0x0, 1, + 8); + +/* + * Below clock nodes describes clockdomains derived out + * of core clock. + */ +static const struct clk_ops clk_ops_null = { +}; + +static const char *l3_gclk_parents[] = { + "dpll_core_m4_ck" +}; + +static struct clk l3_gclk; +DEFINE_STRUCT_CLK_HW_OMAP(l3_gclk, NULL); +DEFINE_STRUCT_CLK(l3_gclk, l3_gclk_parents, clk_ops_null); + +static struct clk l4hs_gclk; +DEFINE_STRUCT_CLK_HW_OMAP(l4hs_gclk, NULL); +DEFINE_STRUCT_CLK(l4hs_gclk, l3_gclk_parents, clk_ops_null); + +static const char *l3s_gclk_parents[] = { + "dpll_core_m4_div2_ck" +}; + +static struct clk l3s_gclk; +DEFINE_STRUCT_CLK_HW_OMAP(l3s_gclk, NULL); +DEFINE_STRUCT_CLK(l3s_gclk, l3s_gclk_parents, clk_ops_null); + +static struct clk l4fw_gclk; +DEFINE_STRUCT_CLK_HW_OMAP(l4fw_gclk, NULL); +DEFINE_STRUCT_CLK(l4fw_gclk, l3s_gclk_parents, clk_ops_null); + +static struct clk l4ls_gclk; +DEFINE_STRUCT_CLK_HW_OMAP(l4ls_gclk, NULL); +DEFINE_STRUCT_CLK(l4ls_gclk, l3s_gclk_parents, clk_ops_null); + +static struct clk sysclk_div_ck; +DEFINE_STRUCT_CLK_HW_OMAP(sysclk_div_ck, NULL); +DEFINE_STRUCT_CLK(sysclk_div_ck, l3_gclk_parents, clk_ops_null); + +/* + * 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; +DEFINE_STRUCT_CLK_HW_OMAP(adc_tsc_fck, NULL); +DEFINE_STRUCT_CLK(adc_tsc_fck, dpll_core_ck_parents, clk_ops_null); + +static struct clk dcan0_fck; +DEFINE_STRUCT_CLK_HW_OMAP(dcan0_fck, NULL); +DEFINE_STRUCT_CLK(dcan0_fck, dpll_core_ck_parents, clk_ops_null); + +static struct clk dcan1_fck; +DEFINE_STRUCT_CLK_HW_OMAP(dcan1_fck, NULL); +DEFINE_STRUCT_CLK(dcan1_fck, dpll_core_ck_parents, clk_ops_null); + +static struct clk mcasp0_fck; +DEFINE_STRUCT_CLK_HW_OMAP(mcasp0_fck, NULL); +DEFINE_STRUCT_CLK(mcasp0_fck, dpll_core_ck_parents, clk_ops_null); + +static struct clk mcasp1_fck; +DEFINE_STRUCT_CLK_HW_OMAP(mcasp1_fck, NULL); +DEFINE_STRUCT_CLK(mcasp1_fck, dpll_core_ck_parents, clk_ops_null); + +static struct clk smartreflex0_fck; +DEFINE_STRUCT_CLK_HW_OMAP(smartreflex0_fck, NULL); +DEFINE_STRUCT_CLK(smartreflex0_fck, dpll_core_ck_parents, clk_ops_null); + +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(lcd_gclk, lcd_ck_parents, gpio_fck_ops); + +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", + .clksel = wdt_clkmux_sel, + .clksel_reg = AM33XX_CLKSEL_WDT1_CLK, + .clksel_mask = AM33XX_CLKSEL_0_1_MASK, +}; + +DEFINE_STRUCT_CLK(wdt1_fck, wdt_ck_parents, gpio_fck_ops); + +/* + * 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("cpu0", NULL, &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_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; +} |