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linux-next/arch/arm/mach-omap2/cm.h
Paul Walmsley d9a16f9ab9 ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
Split omap2_set_globals_prcm() into PRM, CM, and PRCM_MPU variants, since
these are all separate IP blocks.  This should make it easier to move the
PRM, CM, PRCM_MPU code into drivers/ in future patchsets.

At this point arch/arm/plat-omap/include/plat/prcm.h is empty; a
subsequent patch will remove it, and remove the #include from all the
files that #include it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00

65 lines
2.0 KiB
C

/*
* OMAP2+ Clock Management prototypes
*
* Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
* Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#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__
extern void __iomem *cm_base;
extern void __iomem *cm2_base;
extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
# 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 ~4ms 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
*/
struct cm_ll_data {
int (*split_idlest_reg)(void __iomem *idlest_reg, s16 *prcm_inst,
u8 *idlest_reg_id);
int (*wait_module_ready)(s16 prcm_mod, u8 idlest_id, u8 idlest_shift);
};
extern int cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
u8 *idlest_reg_id);
extern int cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift);
extern int cm_register(struct cm_ll_data *cld);
extern int cm_unregister(struct cm_ll_data *cld);
# endif
#endif