diff options
Diffstat (limited to 'arch/arm/include/asm/arch-am33xx/clock.h')
| -rw-r--r-- | arch/arm/include/asm/arch-am33xx/clock.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-am33xx/clock.h b/arch/arm/include/asm/arch-am33xx/clock.h new file mode 100644 index 0000000..dc7a9b1 --- /dev/null +++ b/arch/arm/include/asm/arch-am33xx/clock.h @@ -0,0 +1,134 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * clock.h + * + * clock header + * + * Copyright (C) 2011, Texas Instruments Incorporated - http://www.ti.com/ + */ + +#ifndef _CLOCKS_H_ +#define _CLOCKS_H_ + +#include <asm/arch/clocks_am33xx.h> +#include <asm/arch/hardware.h> + +#if defined(CONFIG_TI816X) || defined(CONFIG_TI814X) +#include <asm/arch/clock_ti81xx.h> +#endif + +#define LDELAY 1000000 + +/*CM_<clock_domain>__CLKCTRL */ +#define CD_CLKCTRL_CLKTRCTRL_SHIFT 0 +#define CD_CLKCTRL_CLKTRCTRL_MASK 3 + +#define CD_CLKCTRL_CLKTRCTRL_NO_SLEEP 0 +#define CD_CLKCTRL_CLKTRCTRL_SW_SLEEP 1 +#define CD_CLKCTRL_CLKTRCTRL_SW_WKUP 2 + +/* CM_<clock_domain>_<module>_CLKCTRL */ +#define MODULE_CLKCTRL_MODULEMODE_SHIFT 0 +#define MODULE_CLKCTRL_MODULEMODE_MASK 3 +#define MODULE_CLKCTRL_IDLEST_SHIFT 16 +#define MODULE_CLKCTRL_IDLEST_MASK (3 << 16) + +#define MODULE_CLKCTRL_MODULEMODE_SW_DISABLE 0 +#define MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN 2 + +#define MODULE_CLKCTRL_IDLEST_FULLY_FUNCTIONAL 0 +#define MODULE_CLKCTRL_IDLEST_TRANSITIONING 1 +#define MODULE_CLKCTRL_IDLEST_IDLE 2 +#define MODULE_CLKCTRL_IDLEST_DISABLED 3 + +/* CM_CLKMODE_DPLL */ +#define CM_CLKMODE_DPLL_SSC_EN_SHIFT 12 +#define CM_CLKMODE_DPLL_SSC_EN_MASK (1 << 12) +#define CM_CLKMODE_DPLL_SSC_ACK_MASK (1 << 13) +#define CM_CLKMODE_DPLL_SSC_DOWNSPREAD_MASK (1 << 14) +#define CM_CLKMODE_DPLL_SSC_TYPE_MASK (1 << 15) +#define CM_CLKMODE_DPLL_REGM4XEN_SHIFT 11 +#define CM_CLKMODE_DPLL_REGM4XEN_MASK (1 << 11) +#define CM_CLKMODE_DPLL_LPMODE_EN_SHIFT 10 +#define CM_CLKMODE_DPLL_LPMODE_EN_MASK (1 << 10) +#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_SHIFT 9 +#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK (1 << 9) +#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_SHIFT 8 +#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK (1 << 8) +#define CM_CLKMODE_DPLL_RAMP_RATE_SHIFT 5 +#define CM_CLKMODE_DPLL_RAMP_RATE_MASK (0x7 << 5) +#define CM_CLKMODE_DPLL_EN_SHIFT 0 +#define CM_CLKMODE_DPLL_EN_MASK (0x7 << 0) + +#define CM_CLKMODE_DPLL_DPLL_EN_SHIFT 0 +#define CM_CLKMODE_DPLL_DPLL_EN_MASK 7 + +#define DPLL_EN_STOP 1 +#define DPLL_EN_MN_BYPASS 4 +#define DPLL_EN_LOW_POWER_BYPASS 5 +#define DPLL_EN_LOCK 7 + +/* CM_IDLEST_DPLL fields */ +#define ST_DPLL_CLK_MASK 1 + +/* CM_CLKSEL_DPLL */ +#define CM_CLKSEL_DPLL_M_SHIFT 8 +#define CM_CLKSEL_DPLL_M_MASK (0x7FF << 8) +#define CM_CLKSEL_DPLL_N_SHIFT 0 +#define CM_CLKSEL_DPLL_N_MASK 0x7F + +struct dpll_params { + u32 m; + u32 n; + s8 m2; + s8 m3; + s8 m4; + s8 m5; + s8 m6; +}; + +struct dpll_regs { + u32 cm_clkmode_dpll; + u32 cm_idlest_dpll; + u32 cm_autoidle_dpll; + u32 cm_clksel_dpll; + u32 cm_div_m2_dpll; + u32 cm_div_m3_dpll; + u32 cm_div_m4_dpll; + u32 cm_div_m5_dpll; + u32 cm_div_m6_dpll; +}; + +extern const struct dpll_regs dpll_mpu_regs; +extern const struct dpll_regs dpll_core_regs; +extern const struct dpll_regs dpll_per_regs; +extern const struct dpll_regs dpll_ddr_regs; +extern const struct dpll_regs dpll_disp_regs; +extern const struct dpll_params dpll_mpu_opp[NUM_CRYSTAL_FREQ][NUM_OPPS]; +extern const struct dpll_params dpll_core_1000MHz[NUM_CRYSTAL_FREQ]; +extern const struct dpll_params dpll_per_192MHz[NUM_CRYSTAL_FREQ]; +extern const struct dpll_params dpll_ddr2_266MHz[NUM_CRYSTAL_FREQ]; +extern const struct dpll_params dpll_ddr3_303MHz[NUM_CRYSTAL_FREQ]; +extern const struct dpll_params dpll_ddr3_400MHz[NUM_CRYSTAL_FREQ]; + +extern struct cm_wkuppll *const cmwkup; + +const struct dpll_params *get_dpll_mpu_params(void); +const struct dpll_params *get_dpll_core_params(void); +const struct dpll_params *get_dpll_per_params(void); +const struct dpll_params *get_dpll_ddr_params(void); +void scale_vcores(void); +void do_setup_dpll(const struct dpll_regs *, const struct dpll_params *); +void prcm_init(void); +void enable_basic_clocks(void); + +void rtc_only_update_board_type(u32 btype); +u32 rtc_only_get_board_type(void); +void rtc_only_prcm_init(void); +void rtc_only_enable_basic_clocks(void); + +void do_enable_clocks(u32 *const *, u32 *const *, u8); +void do_disable_clocks(u32 *const *, u32 *const *, u8); + +void set_mpu_spreadspectrum(int permille); +#endif |