1/*
 2 * OMAP2+ Clock Management prototypes
 3 *
 4 * Copyright (C) 2007-2009 Texas Instruments, Inc.
 5 * Copyright (C) 2007-2009 Nokia Corporation
 6 *
 7 * Written by Paul Walmsley
 8 *
 9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13#ifndef __ARCH_ASM_MACH_OMAP2_CM_H
14#define __ARCH_ASM_MACH_OMAP2_CM_H
15
16/*
17 * MAX_MODULE_READY_TIME: max duration in microseconds to wait for the
18 * PRCM to request that a module exit the inactive state in the case of
19 * OMAP2 & 3.
20 * In the case of OMAP4 this is the max duration in microseconds for the
21 * module to reach the functionnal state from an inactive state.
22 */
23#define MAX_MODULE_READY_TIME		2000
24
 
 
 
 
 
 
 
 
 
 
25/*
26 * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for
27 * the PRCM to request that a module enter the inactive state in the
28 * case of OMAP2 & 3.  In the case of OMAP4 this is the max duration
29 * in microseconds for the module to reach the inactive state from
30 * a functional state.
31 * XXX FSUSB on OMAP4430 takes ~4ms to idle after reset during
32 * kernel init.
33 */
34#define MAX_MODULE_DISABLE_TIME		5000
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
35
36#endif

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * OMAP2+ Clock Management prototypes
 4 *
 5 * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
 6 * Copyright (C) 2007-2009 Nokia Corporation
 7 *
 8 * Written by Paul Walmsley
 
 
 
 
 9 */
10#ifndef __ARCH_ASM_MACH_OMAP2_CM_H
11#define __ARCH_ASM_MACH_OMAP2_CM_H
12
13/*
14 * MAX_MODULE_READY_TIME: max duration in microseconds to wait for the
15 * PRCM to request that a module exit the inactive state in the case of
16 * OMAP2 & 3.
17 * In the case of OMAP4 this is the max duration in microseconds for the
18 * module to reach the functionnal state from an inactive state.
19 */
20#define MAX_MODULE_READY_TIME		2000
21
22# ifndef __ASSEMBLER__
23#include <linux/clk/ti.h>
24
25#include "prcm-common.h"
26
27extern struct omap_domain_base cm_base;
28extern struct omap_domain_base cm2_base;
29extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
30# endif
31
32/*
33 * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for
34 * the PRCM to request that a module enter the inactive state in the
35 * case of OMAP2 & 3.  In the case of OMAP4 this is the max duration
36 * in microseconds for the module to reach the inactive state from
37 * a functional state.
38 * XXX FSUSB on OMAP4430 takes ~4ms to idle after reset during
39 * kernel init.
40 */
41#define MAX_MODULE_DISABLE_TIME		5000
42
43# ifndef __ASSEMBLER__
44
45/**
46 * struct cm_ll_data - fn ptrs to per-SoC CM function implementations
47 * @split_idlest_reg: ptr to the SoC CM-specific split_idlest_reg impl
48 * @wait_module_ready: ptr to the SoC CM-specific wait_module_ready impl
49 * @wait_module_idle: ptr to the SoC CM-specific wait_module_idle impl
50 * @module_enable: ptr to the SoC CM-specific module_enable impl
51 * @module_disable: ptr to the SoC CM-specific module_disable impl
52 * @xlate_clkctrl: ptr to the SoC CM-specific clkctrl xlate addr impl
53 */
54struct cm_ll_data {
55	int (*split_idlest_reg)(struct clk_omap_reg *idlest_reg, s16 *prcm_inst,
56				u8 *idlest_reg_id);
57	int (*wait_module_ready)(u8 part, s16 prcm_mod, u16 idlest_reg,
58				 u8 idlest_shift);
59	int (*wait_module_idle)(u8 part, s16 prcm_mod, u16 idlest_reg,
60				u8 idlest_shift);
61	void (*module_enable)(u8 mode, u8 part, u16 inst, u16 clkctrl_offs);
62	void (*module_disable)(u8 part, u16 inst, u16 clkctrl_offs);
63	u32 (*xlate_clkctrl)(u8 part, u16 inst, u16 clkctrl_offs);
64};
65
66extern int cm_split_idlest_reg(struct clk_omap_reg *idlest_reg, s16 *prcm_inst,
67			       u8 *idlest_reg_id);
68int omap_cm_wait_module_ready(u8 part, s16 prcm_mod, u16 idlest_reg,
69			      u8 idlest_shift);
70int omap_cm_wait_module_idle(u8 part, s16 prcm_mod, u16 idlest_reg,
71			     u8 idlest_shift);
72int omap_cm_module_enable(u8 mode, u8 part, u16 inst, u16 clkctrl_offs);
73int omap_cm_module_disable(u8 part, u16 inst, u16 clkctrl_offs);
74u32 omap_cm_xlate_clkctrl(u8 part, u16 inst, u16 clkctrl_offs);
75extern int cm_register(const struct cm_ll_data *cld);
76extern int cm_unregister(const struct cm_ll_data *cld);
77int omap_cm_init(void);
78int omap2_cm_base_init(void);
79
80# endif
81
82#endif