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u-boot/arch/arm/include/asm/arch-mx7ulp/scg.h

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imx: mx7ulp: Add clock framework and functions Add a clock framework to support SCG1/PCC2/PCC3 for A7 to support get/set clock source, divider, clock rate and parent source. Users need to include pcc.h to use the APIs to for peripherals clock. Each peripheral clock is defined in enum pcc_clk type. SCG relevants APIs are defined in scg.h which supports clock rate get, PLL/PFD enablement and settings, and all SCG clock initialization. User need use enum scg_clk to access each clock source. In clock.c, we initialize necessary clocks at u-boot s_init and implement the clock functions used by driver modules to operate clocks dynamically. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Ye Li <ye.li@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
2017-02-22 08:21:42 +00:00
/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_ARCH_SCG_H
#define _ASM_ARCH_SCG_H
#include <common.h>
#ifdef CONFIG_CLK_DEBUG
#define clk_debug(fmt, args...) printf(fmt, ##args)
#else
#define clk_debug(fmt, args...)
#endif
#define SCG_CCR_SCS_SHIFT (24)
#define SCG_CCR_SCS_MASK ((0xFUL) << SCG_CCR_SCS_SHIFT)
#define SCG_CCR_DIVCORE_SHIFT (16)
#define SCG_CCR_DIVCORE_MASK ((0xFUL) << SCG_CCR_DIVCORE_SHIFT)
#define SCG_CCR_DIVPLAT_SHIFT (12)
#define SCG_CCR_DIVPLAT_MASK ((0xFUL) << SCG_CCR_DIVPLAT_SHIFT)
#define SCG_CCR_DIVEXT_SHIFT (8)
#define SCG_CCR_DIVEXT_MASK ((0xFUL) << SCG_CCR_DIVEXT_SHIFT)
#define SCG_CCR_DIVBUS_SHIFT (4)
#define SCG_CCR_DIVBUS_MASK ((0xFUL) << SCG_CCR_DIVBUS_SHIFT)
#define SCG_CCR_DIVSLOW_SHIFT (0)
#define SCG_CCR_DIVSLOW_MASK ((0xFUL) << SCG_CCR_DIVSLOW_SHIFT)
/* SCG DDR Clock Control Register */
#define SCG_DDRCCR_DDRCS_SHIFT (24)
#define SCG_DDRCCR_DDRCS_MASK ((0x1UL) << SCG_DDRCCR_DDRCS_SHIFT)
#define SCG_DDRCCR_DDRDIV_SHIFT (0)
#define SCG_DDRCCR_DDRDIV_MASK ((0x7UL) << SCG_DDRCCR_DDRDIV_SHIFT)
/* SCG NIC Clock Control Register */
#define SCG_NICCCR_NICCS_SHIFT (28)
#define SCG_NICCCR_NICCS_MASK ((0x1UL) << SCG_NICCCR_NICCS_SHIFT)
#define SCG_NICCCR_NIC0_DIV_SHIFT (24)
#define SCG_NICCCR_NIC0_DIV_MASK ((0xFUL) << SCG_NICCCR_NIC0_DIV_SHIFT)
#define SCG_NICCCR_GPU_DIV_SHIFT (20)
#define SCG_NICCCR_GPU_DIV_MASK ((0xFUL) << SCG_NICCCR_GPU_DIV_SHIFT)
#define SCG_NICCCR_NIC1_DIV_SHIFT (16)
#define SCG_NICCCR_NIC1_DIV_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIV_SHIFT)
#define SCG_NICCCR_NIC1_DIVEXT_SHIFT (8)
#define SCG_NICCCR_NIC1_DIVEXT_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIVEXT_SHIFT)
#define SCG_NICCCR_NIC1_DIVBUS_SHIFT (4)
#define SCG_NICCCR_NIC1_DIVBUS_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIVBUS_SHIFT)
/* SCG NIC clock status register */
#define SCG_NICCSR_NICCS_SHIFT (28)
#define SCG_NICCSR_NICCS_MASK ((0x1UL) << SCG_NICCSR_NICCS_SHIFT)
#define SCG_NICCSR_NIC0DIV_SHIFT (24)
#define SCG_NICCSR_NIC0DIV_MASK ((0xFUL) << SCG_NICCSR_NIC0DIV_SHIFT)
#define SCG_NICCSR_GPUDIV_SHIFT (20)
#define SCG_NICCSR_GPUDIV_MASK ((0xFUL) << SCG_NICCSR_GPUDIV_SHIFT)
#define SCG_NICCSR_NIC1DIV_SHIFT (16)
#define SCG_NICCSR_NIC1DIV_MASK ((0xFUL) << SCG_NICCSR_NIC1DIV_SHIFT)
#define SCG_NICCSR_NIC1EXTDIV_SHIFT (8)
#define SCG_NICCSR_NIC1EXTDIV_MASK ((0xFUL) << SCG_NICCSR_NIC1EXTDIV_SHIFT)
#define SCG_NICCSR_NIC1BUSDIV_SHIFT (4)
#define SCG_NICCSR_NIC1BUSDIV_MASK ((0xFUL) << SCG_NICCSR_NIC1BUSDIV_SHIFT)
/* SCG Slow IRC Control Status Register */
#define SCG_SIRC_CSR_SIRCVLD_SHIFT (24)
#define SCG_SIRC_CSR_SIRCVLD_MASK ((0x1UL) << SCG_SIRC_CSR_SIRCVLD_SHIFT)
#define SCG_SIRC_CSR_SIRCEN_SHIFT (0)
#define SCG_SIRC_CSR_SIRCEN_MASK ((0x1UL) << SCG_SIRC_CSR_SIRCEN_SHIFT)
/* SCG Slow IRC Configuration Register */
#define SCG_SIRCCFG_RANGE_SHIFT (0)
#define SCG_SIRCCFG_RANGE_MASK ((0x1UL) << SCG_SIRCCFG_RANGE_SHIFT)
#define SCG_SIRCCFG_RANGE_4M ((0x0UL) << SCG_SIRCCFG_RANGE_SHIFT)
#define SCG_SIRCCFG_RANGE_16M ((0x1UL) << SCG_SIRCCFG_RANGE_SHIFT)
/* SCG Slow IRC Divide Register */
#define SCG_SIRCDIV_DIV3_SHIFT (16)
#define SCG_SIRCDIV_DIV3_MASK ((0x7UL) << SCG_SIRCDIV_DIV3_SHIFT)
#define SCG_SIRCDIV_DIV2_SHIFT (8)
#define SCG_SIRCDIV_DIV2_MASK ((0x7UL) << SCG_SIRCDIV_DIV2_SHIFT)
#define SCG_SIRCDIV_DIV1_SHIFT (0)
#define SCG_SIRCDIV_DIV1_MASK ((0x7UL) << SCG_SIRCDIV_DIV1_SHIFT)
/*
* FIRC/SIRC DIV1 ==> xIRC_PLAT_CLK
* FIRC/SIRC DIV2 ==> xIRC_BUS_CLK
* FIRC/SIRC DIV3 ==> xIRC_SLOW_CLK
*/
/* SCG Fast IRC Control Status Register */
#define SCG_FIRC_CSR_FIRCVLD_SHIFT (24)
#define SCG_FIRC_CSR_FIRCVLD_MASK ((0x1UL) << SCG_FIRC_CSR_FIRCVLD_SHIFT)
#define SCG_FIRC_CSR_FIRCEN_SHIFT (0)
#define SCG_FIRC_CSR_FIRCEN_MASK ((0x1UL) << SCG_FIRC_CSR_FIRCEN_SHIFT)
/* SCG Fast IRC Divide Register */
#define SCG_FIRCDIV_DIV3_SHIFT (16)
#define SCG_FIRCDIV_DIV3_MASK ((0x7UL) << SCG_FIRCDIV_DIV3_SHIFT)
#define SCG_FIRCDIV_DIV2_SHIFT (8)
#define SCG_FIRCDIV_DIV2_MASK ((0x7UL) << SCG_FIRCDIV_DIV2_SHIFT)
#define SCG_FIRCDIV_DIV1_SHIFT (0)
#define SCG_FIRCDIV_DIV1_MASK ((0x7UL) << SCG_FIRCDIV_DIV1_SHIFT)
#define SCG_FIRCCFG_RANGE_SHIFT (0)
#define SCG_FIRCCFG_RANGE_MASK ((0x3UL) << SCG_FIRCCFG_RANGE_SHIFT)
#define SCG_FIRCCFG_RANGE_SHIFT (0)
#define SCG_FIRCCFG_RANGE_48M ((0x0UL) << SCG_FIRCCFG_RANGE_SHIFT)
/* SCG System OSC Control Status Register */
#define SCG_SOSC_CSR_SOSCVLD_SHIFT (24)
#define SCG_SOSC_CSR_SOSCVLD_MASK ((0x1UL) << SCG_SOSC_CSR_SOSCVLD_SHIFT)
/* SCG Fast IRC Divide Register */
#define SCG_SOSCDIV_DIV3_SHIFT (16)
#define SCG_SOSCDIV_DIV3_MASK ((0x7UL) << SCG_SOSCDIV_DIV3_SHIFT)
#define SCG_SOSCDIV_DIV2_SHIFT (8)
#define SCG_SOSCDIV_DIV2_MASK ((0x7UL) << SCG_SOSCDIV_DIV2_SHIFT)
#define SCG_SOSCDIV_DIV1_SHIFT (0)
#define SCG_SOSCDIV_DIV1_MASK ((0x7UL) << SCG_SOSCDIV_DIV1_SHIFT)
/* SCG RTC OSC Control Status Register */
#define SCG_ROSC_CSR_ROSCVLD_SHIFT (24)
#define SCG_ROSC_CSR_ROSCVLD_MASK ((0x1UL) << SCG_ROSC_CSR_ROSCVLD_SHIFT)
#define SCG_SPLL_CSR_SPLLVLD_SHIFT (24)
#define SCG_SPLL_CSR_SPLLVLD_MASK ((0x1UL) << SCG_SPLL_CSR_SPLLVLD_SHIFT)
#define SCG_SPLL_CSR_SPLLEN_SHIFT (0)
#define SCG_SPLL_CSR_SPLLEN_MASK ((0x1UL) << SCG_SPLL_CSR_SPLLEN_SHIFT)
#define SCG_APLL_CSR_APLLEN_SHIFT (0)
#define SCG_APLL_CSR_APLLEN_MASK (0x1UL)
#define SCG_APLL_CSR_APLLVLD_MASK (0x01000000)
#define SCG_UPLL_CSR_UPLLVLD_MASK (0x01000000)
#define SCG_PLL_PFD3_GATE_MASK (0x80000000)
#define SCG_PLL_PFD2_GATE_MASK (0x00800000)
#define SCG_PLL_PFD1_GATE_MASK (0x00008000)
#define SCG_PLL_PFD0_GATE_MASK (0x00000080)
#define SCG_PLL_PFD3_VALID_MASK (0x40000000)
#define SCG_PLL_PFD2_VALID_MASK (0x00400000)
#define SCG_PLL_PFD1_VALID_MASK (0x00004000)
#define SCG_PLL_PFD0_VALID_MASK (0x00000040)
#define SCG_PLL_PFD0_FRAC_SHIFT (0)
#define SCG_PLL_PFD0_FRAC_MASK ((0x3F) << SCG_PLL_PFD0_FRAC_SHIFT)
#define SCG_PLL_PFD1_FRAC_SHIFT (8)
#define SCG_PLL_PFD1_FRAC_MASK ((0x3F) << SCG_PLL_PFD1_FRAC_SHIFT)
#define SCG_PLL_PFD2_FRAC_SHIFT (16)
#define SCG_PLL_PFD2_FRAC_MASK ((0x3F) << SCG_PLL_PFD2_FRAC_SHIFT)
#define SCG_PLL_PFD3_FRAC_SHIFT (24)
#define SCG_PLL_PFD3_FRAC_MASK ((0x3F) << SCG_PLL_PFD3_FRAC_SHIFT)
#define SCG_PLL_CFG_POSTDIV2_SHIFT (28)
#define SCG_PLL_CFG_POSTDIV2_MASK ((0xFUL) << SCG_PLL_CFG_POSTDIV2_SHIFT)
#define SCG_PLL_CFG_POSTDIV1_SHIFT (24)
#define SCG_PLL_CFG_POSTDIV1_MASK ((0xFUL) << SCG_PLL_CFG_POSTDIV1_SHIFT)
#define SCG_PLL_CFG_MULT_SHIFT (16)
#define SCG1_SPLL_CFG_MULT_MASK ((0x7FUL) << SCG_PLL_CFG_MULT_SHIFT)
#define SCG_APLL_CFG_MULT_MASK ((0x7FUL) << SCG_PLL_CFG_MULT_SHIFT)
#define SCG_PLL_CFG_PFDSEL_SHIFT (14)
#define SCG_PLL_CFG_PFDSEL_MASK ((0x3UL) << SCG_PLL_CFG_PFDSEL_SHIFT)
#define SCG_PLL_CFG_PREDIV_SHIFT (8)
#define SCG_PLL_CFG_PREDIV_MASK ((0x7UL) << SCG_PLL_CFG_PREDIV_SHIFT)
#define SCG_PLL_CFG_BYPASS_SHIFT (2)
/* 0: SPLL, 1: bypass */
#define SCG_PLL_CFG_BYPASS_MASK ((0x1UL) << SCG_PLL_CFG_BYPASS_SHIFT)
#define SCG_PLL_CFG_PLLSEL_SHIFT (1)
/* 0: pll, 1: pfd */
#define SCG_PLL_CFG_PLLSEL_MASK ((0x1UL) << SCG_PLL_CFG_PLLSEL_SHIFT)
#define SCG_PLL_CFG_CLKSRC_SHIFT (0)
/* 0: Sys-OSC, 1: FIRC */
#define SCG_PLL_CFG_CLKSRC_MASK ((0x1UL) << SCG_PLL_CFG_CLKSRC_SHIFT)
#define SCG0_SPLL_CFG_MULT_SHIFT (17)
/* 0: Multiplier = 20, 1: Multiplier = 22 */
#define SCG0_SPLL_CFG_MULT_MASK ((0x1UL) << SCG0_SPLL_CFG_MULT_SHIFT)
#define PLL_USB_EN_USB_CLKS_MASK (0x01 << 6)
#define PLL_USB_PWR_MASK (0x01 << 12)
#define PLL_USB_ENABLE_MASK (0x01 << 13)
#define PLL_USB_BYPASS_MASK (0x01 << 16)
#define PLL_USB_REG_ENABLE_MASK (0x01 << 21)
#define PLL_USB_DIV_SEL_MASK (0x07 << 22)
#define PLL_USB_LOCK_MASK (0x01 << 31)
enum scg_clk {
SCG_SOSC_CLK,
SCG_FIRC_CLK,
SCG_SIRC_CLK,
SCG_ROSC_CLK,
SCG_SIRC_DIV1_CLK,
SCG_SIRC_DIV2_CLK,
SCG_SIRC_DIV3_CLK,
SCG_FIRC_DIV1_CLK,
SCG_FIRC_DIV2_CLK,
SCG_FIRC_DIV3_CLK,
SCG_SOSC_DIV1_CLK,
SCG_SOSC_DIV2_CLK,
SCG_SOSC_DIV3_CLK,
SCG_CORE_CLK,
SCG_BUS_CLK,
SCG_SPLL_PFD0_CLK,
SCG_SPLL_PFD1_CLK,
SCG_SPLL_PFD2_CLK,
SCG_SPLL_PFD3_CLK,
SCG_DDR_CLK,
SCG_NIC0_CLK,
SCG_GPU_CLK,
SCG_NIC1_CLK,
SCG_NIC1_BUS_CLK,
SCG_NIC1_EXT_CLK,
SCG_APLL_PFD0_CLK,
SCG_APLL_PFD1_CLK,
SCG_APLL_PFD2_CLK,
SCG_APLL_PFD3_CLK,
USB_PLL_OUT,
MIPI_PLL_OUT
};
enum scg_sys_src {
SCG_SCS_SYS_OSC = 1,
SCG_SCS_SLOW_IRC,
SCG_SCS_FAST_IRC,
SCG_SCS_RTC_OSC,
SCG_SCS_AUX_PLL,
SCG_SCS_SYS_PLL,
SCG_SCS_USBPHY_PLL,
};
/* PLL supported by i.mx7ulp */
enum pll_clocks {
PLL_M4_SPLL, /* M4 SPLL */
PLL_M4_APLL, /* M4 APLL*/
PLL_A7_SPLL, /* A7 SPLL */
PLL_A7_APLL, /* A7 APLL */
PLL_USB, /* USB PLL*/
PLL_MIPI, /* MIPI PLL */
};
typedef struct scg_regs {
u32 verid; /* VERSION_ID */
u32 param; /* PARAMETER */
u32 rsvd11[2];
u32 csr; /* Clock Status Register */
u32 rccr; /* Run Clock Control Register */
u32 vccr; /* VLPR Clock Control Register */
u32 hccr; /* HSRUN Clock Control Register */
u32 clkoutcnfg; /* SCG CLKOUT Configuration Register */
u32 rsvd12[3];
u32 ddrccr; /* SCG DDR Clock Control Register */
u32 rsvd13[3];
u32 nicccr; /* NIC Clock Control Register */
u32 niccsr; /* NIC Clock Status Register */
u32 rsvd10[46];
u32 sosccsr; /* System OSC Control Status Register, offset 0x100 */
u32 soscdiv; /* System OSC Divide Register */
u32 sosccfg; /* System Oscillator Configuration Register */
u32 sosctest; /* System Oscillator Test Register */
u32 rsvd20[60];
u32 sirccsr; /* Slow IRC Control Status Register, offset 0x200 */
u32 sircdiv; /* Slow IRC Divide Register */
u32 sirccfg; /* Slow IRC Configuration Register */
u32 sirctrim; /* Slow IRC Trim Register */
u32 loptrim; /* Low Power Oscillator Trim Register */
u32 sirctest; /* Slow IRC Test Register */
u32 rsvd30[58];
u32 firccsr; /* Fast IRC Control Status Register, offset 0x300 */
u32 fircdiv;
u32 firccfg;
u32 firctcfg; /* Fast IRC Trim Configuration Register */
u32 firctriml; /* Fast IRC Trim Low Register */
u32 firctrimh;
u32 fircstat; /* Fast IRC Status Register */
u32 firctest; /* Fast IRC Test Register */
u32 rsvd40[56];
u32 rtccsr; /* RTC OSC Control Status Register, offset 0x400 */
u32 rsvd50[63];
u32 apllcsr; /* Auxiliary PLL Control Status Register, offset 0x500 */
u32 aplldiv; /* Auxiliary PLL Divider Register */
u32 apllcfg; /* Auxiliary PLL Configuration Register */
u32 apllpfd; /* Auxiliary PLL PFD Register */
u32 apllnum; /* Auxiliary PLL Numerator Register */
u32 aplldenom; /* Auxiliary PLL Denominator Register */
u32 apllss; /* Auxiliary PLL Spread Spectrum Register */
u32 rsvd60[55];
u32 apllock_cnfg; /* Auxiliary PLL LOCK Configuration Register */
u32 rsvd61[1];
u32 spllcsr; /* System PLL Control Status Register, offset 0x600 */
u32 splldiv; /* System PLL Divide Register */
u32 spllcfg; /* System PLL Configuration Register */
u32 spllpfd; /* System PLL Test Register */
u32 spllnum; /* System PLL Numerator Register */
u32 splldenom; /* System PLL Denominator Register */
u32 spllss; /* System PLL Spread Spectrum Register */
u32 rsvd70[55];
u32 spllock_cnfg; /* System PLL LOCK Configuration Register */
u32 rsvd71[1];
u32 upllcsr; /* USB PLL Control Status Register, offset 0x700 */
u32 uplldiv; /* USB PLL Divide Register */
u32 upllcfg; /* USB PLL Configuration Register */
} scg_t, *scg_p;
u32 scg_clk_get_rate(enum scg_clk clk);
int scg_enable_pll_pfd(enum scg_clk clk, u32 frac);
int scg_enable_usb_pll(bool usb_control);
u32 decode_pll(enum pll_clocks pll);
void scg_a7_rccr_init(void);
void scg_a7_spll_init(void);
void scg_a7_ddrclk_init(void);
void scg_a7_apll_init(void);
void scg_a7_firc_init(void);
void scg_a7_nicclk_init(void);
void scg_a7_sys_clk_sel(enum scg_sys_src clk);
void scg_a7_info(void);
void scg_a7_soscdiv_init(void);
#endif
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