mirror of
https://github.com/brain-hackers/u-boot-brain
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cf04d0326b
Updating the Multiplier and Dividers value for all DPLLs. Safest OPP is read from DEV ATTRIBUTE register. Accoring to the value returned the MPU DPLL is locked. At different OPPs follwoing are the MPU locked frequencies. OPP50 300MHz OPP100 600MHz OPP120 720MHz OPPTB 800MHz OPPNT 1000MHz According to the latest DM following is the OPP table dependencies: VDD_CORE VDD_MPU OPP50 OPP50 OPP50 OPP100 OPP100 OPP50 OPP100 OPP100 OPP100 OPP120 So at different OPPs of MPU it is safest to lock CORE at OPP_NOM. Following are the DPLL locking frequencies at OPP NOM: Core locks at 1000MHz Per locks at 960MHz LPDDR2 locks at 266MHz DDR3 locks at 400MHz Touching AM33xx files also to get DPLL values specific to board but no functionality difference. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/*
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* clock.h
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*
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* clock header
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*
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* Copyright (C) 2011, Texas Instruments Incorporated - http://www.ti.com/
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _CLOCKS_H_
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#define _CLOCKS_H_
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#include <asm/arch/clocks_am33xx.h>
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#ifdef CONFIG_TI81XX
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#include <asm/arch/clock_ti81xx.h>
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#endif
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#define LDELAY 1000000
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/*CM_<clock_domain>__CLKCTRL */
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#define CD_CLKCTRL_CLKTRCTRL_SHIFT 0
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#define CD_CLKCTRL_CLKTRCTRL_MASK 3
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#define CD_CLKCTRL_CLKTRCTRL_NO_SLEEP 0
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#define CD_CLKCTRL_CLKTRCTRL_SW_SLEEP 1
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#define CD_CLKCTRL_CLKTRCTRL_SW_WKUP 2
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/* CM_<clock_domain>_<module>_CLKCTRL */
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#define MODULE_CLKCTRL_MODULEMODE_SHIFT 0
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#define MODULE_CLKCTRL_MODULEMODE_MASK 3
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#define MODULE_CLKCTRL_IDLEST_SHIFT 16
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#define MODULE_CLKCTRL_IDLEST_MASK (3 << 16)
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#define MODULE_CLKCTRL_MODULEMODE_SW_DISABLE 0
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#define MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN 2
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#define MODULE_CLKCTRL_IDLEST_FULLY_FUNCTIONAL 0
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#define MODULE_CLKCTRL_IDLEST_TRANSITIONING 1
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#define MODULE_CLKCTRL_IDLEST_IDLE 2
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#define MODULE_CLKCTRL_IDLEST_DISABLED 3
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/* CM_CLKMODE_DPLL */
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#define CM_CLKMODE_DPLL_REGM4XEN_SHIFT 11
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#define CM_CLKMODE_DPLL_REGM4XEN_MASK (1 << 11)
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#define CM_CLKMODE_DPLL_LPMODE_EN_SHIFT 10
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#define CM_CLKMODE_DPLL_LPMODE_EN_MASK (1 << 10)
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#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_SHIFT 9
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#define CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK (1 << 9)
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#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_SHIFT 8
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#define CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK (1 << 8)
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#define CM_CLKMODE_DPLL_RAMP_RATE_SHIFT 5
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#define CM_CLKMODE_DPLL_RAMP_RATE_MASK (0x7 << 5)
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#define CM_CLKMODE_DPLL_EN_SHIFT 0
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#define CM_CLKMODE_DPLL_EN_MASK (0x7 << 0)
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#define CM_CLKMODE_DPLL_DPLL_EN_SHIFT 0
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#define CM_CLKMODE_DPLL_DPLL_EN_MASK 7
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#define DPLL_EN_STOP 1
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#define DPLL_EN_MN_BYPASS 4
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#define DPLL_EN_LOW_POWER_BYPASS 5
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#define DPLL_EN_LOCK 7
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/* CM_IDLEST_DPLL fields */
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#define ST_DPLL_CLK_MASK 1
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/* CM_CLKSEL_DPLL */
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#define CM_CLKSEL_DPLL_M_SHIFT 8
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#define CM_CLKSEL_DPLL_M_MASK (0x7FF << 8)
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#define CM_CLKSEL_DPLL_N_SHIFT 0
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#define CM_CLKSEL_DPLL_N_MASK 0x7F
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struct dpll_params {
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u32 m;
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u32 n;
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s8 m2;
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s8 m3;
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s8 m4;
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s8 m5;
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s8 m6;
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};
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struct dpll_regs {
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u32 cm_clkmode_dpll;
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u32 cm_idlest_dpll;
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u32 cm_autoidle_dpll;
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u32 cm_clksel_dpll;
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u32 cm_div_m2_dpll;
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u32 cm_div_m3_dpll;
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u32 cm_div_m4_dpll;
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u32 cm_div_m5_dpll;
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u32 cm_div_m6_dpll;
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};
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extern const struct dpll_regs dpll_mpu_regs;
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extern const struct dpll_regs dpll_core_regs;
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extern const struct dpll_regs dpll_per_regs;
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extern const struct dpll_regs dpll_ddr_regs;
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extern struct cm_wkuppll *const cmwkup;
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const struct dpll_params *get_dpll_mpu_params(void);
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const struct dpll_params *get_dpll_core_params(void);
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const struct dpll_params *get_dpll_per_params(void);
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const struct dpll_params *get_dpll_ddr_params(void);
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void do_setup_dpll(const struct dpll_regs *, const struct dpll_params *);
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void prcm_init(void);
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void enable_basic_clocks(void);
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void do_enable_clocks(u32 *const *, u32 *const *, u8);
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#endif
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