/* SPDX-License-Identifier: GPL-2.0-only */
/*
* OMAP2 + Clock Management prototypes
*
* Copyright ( C ) 2007 - 2009 , 2012 Texas Instruments , Inc .
* Copyright ( C ) 2007 - 2009 Nokia Corporation
*
* Written by Paul Walmsley
*/
#ifndef __ARCH_ASM_MACH_OMAP2_CM_H
#define __ARCH_ASM_MACH_OMAP2_CM_H
/*
* MAX_MODULE_READY_TIME : max duration in microseconds to wait for the
* PRCM to request that a module exit the inactive state in the case of
* OMAP2 & 3 .
* In the case of OMAP4 this is the max duration in microseconds for the
* module to reach the functionnal state from an inactive state .
*/
#define MAX_MODULE_READY_TIME 2000
# ifndef __ASSEMBLER__
#include <linux/clk/ti.h>
#include "prcm-common.h"
extern struct omap_domain_base cm_base;
extern struct omap_domain_base cm2_base;
# endif
/*
* MAX_MODULE_DISABLE_TIME : max duration in microseconds to wait for
* the PRCM to request that a module enter the inactive state in the
* case of OMAP2 & 3 . In the case of OMAP4 this is the max duration
* in microseconds for the module to reach the inactive state from
* a functional state .
* XXX FSUSB on OMAP4430 takes ~ 4 ms to idle after reset during
* kernel init .
*/
#define MAX_MODULE_DISABLE_TIME 5000
# ifndef __ASSEMBLER__
/**
* struct cm_ll_data - fn ptrs to per - SoC CM function implementations
* @ split_idlest_reg : ptr to the SoC CM - specific split_idlest_reg impl
* @ wait_module_ready : ptr to the SoC CM - specific wait_module_ready impl
* @ wait_module_idle : ptr to the SoC CM - specific wait_module_idle impl
* @ module_enable : ptr to the SoC CM - specific module_enable impl
* @ module_disable : ptr to the SoC CM - specific module_disable impl
* @ xlate_clkctrl : ptr to the SoC CM - specific clkctrl xlate addr impl
*/
struct cm_ll_data {
int (*split_idlest_reg)(struct clk_omap_reg *idlest_reg, s16 *prcm_inst,
u8 *idlest_reg_id);
int (*wait_module_ready)(u8 part, s16 prcm_mod, u16 idlest_reg,
u8 idlest_shift);
int (*wait_module_idle)(u8 part, s16 prcm_mod, u16 idlest_reg,
u8 idlest_shift);
void (*module_enable)(u8 mode, u8 part, u16 inst, u16 clkctrl_offs);
void (*module_disable)(u8 part, u16 inst, u16 clkctrl_offs);
u32 (*xlate_clkctrl)(u8 part, u16 inst, u16 clkctrl_offs);
};
extern int cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, s16 *prcm_inst,
u8 *idlest_reg_id);
int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg,
u8 idlest_shift);
int omap_cm_wait_module_idle(u8 part, s16 prcm_mod, u16 idlest_reg,
u8 idlest_shift);
int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs);
int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs);
u32 omap_cm_xlate_clkctrl(u8 part, u16 inst, u16 clkctrl_offs);
extern int cm_register(const struct cm_ll_data *cld);
extern int cm_unregister(const struct cm_ll_data *cld);
int omap_cm_init(void );
int omap2_cm_base_init(void );
# endif
#endif
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