mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 21:02:19 +00:00
5e512d0785
This is stuff that does not fit well into another category and in
particular is not related to a particular board. The largest part
in here is extending the am33xx support in the omap platform.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=Qclg
-----END PGP SIGNATURE-----
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm soc-specific updates from Arnd Bergmann:
"This is stuff that does not fit well into another category and in
particular is not related to a particular board. The largest part in
here is extending the am33xx support in the omap platform."
Fix up trivial conflicts in arch/arm/mach-{imx/mach-mx35_3ds.c, tegra/Makefile}
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (74 commits)
ARM: LPC32xx: Add PWM support
ARM: LPC32xx: Add PWM clock
ARM: LPC32xx: Set system serial based on cpu unique id
ARM: vexpress: Config option for early printk console
ARM: vexpress: Add Device Tree for V2P-CA15_CA7 core tile
ARM: vexpress: Convert V2P-CA15 Device Tree to 64 bit addresses
ARM: vexpress: Add fixed regulator for SMSC
ARM: vexpress: Add missing SP804 interrupt in motherboard's DTS files
ARM: vexpress: Initial common clock support
ARM: SAMSUNG: Introduce Kconfig variable for Samsung custom clk API
ARM: EXYNOS: Add missing static storage class specifier in pmu.c file
ARM: EXYNOS: Make combiner_init function static
ARM: EXYNOS: Update HSOTG PHY clock setting for EXYNOS4X12
ARM: versatile: Make plat-versatile clock optional
ARM: vexpress: Check master site in daughterboard's sysctl operations
ARM: vexpress: remove automatic errata workaround selection
ARM: LPC32xx: Adjust to pl08x DMA interface changes
ARM: EXYNOS: Clear SYS_WDTRESET bit to use watchdog reset
ARM: imx: fix mx51 ehci setup errors
ARM: imx: make ehci power/oc polarities configurable
...
217 lines
8.3 KiB
C
217 lines
8.3 KiB
C
/*
|
|
* arch/arm/plat-omap/include/mach/clockdomain.h
|
|
*
|
|
* OMAP2/3 clockdomain framework functions
|
|
*
|
|
* Copyright (C) 2008 Texas Instruments, Inc.
|
|
* Copyright (C) 2008-2011 Nokia Corporation
|
|
*
|
|
* 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_ARM_MACH_OMAP2_CLOCKDOMAIN_H
|
|
#define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAIN_H
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/spinlock.h>
|
|
|
|
#include "powerdomain.h"
|
|
#include <plat/clock.h>
|
|
#include <plat/omap_hwmod.h>
|
|
#include <plat/cpu.h>
|
|
|
|
/*
|
|
* Clockdomain flags
|
|
*
|
|
* XXX Document CLKDM_CAN_* flags
|
|
*
|
|
* CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this
|
|
* clockdomain. (Currently, this applies to OMAP3 clockdomains only.)
|
|
* CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is
|
|
* active whenever the MPU is active. True for interconnects and
|
|
* the WKUP clockdomains.
|
|
*/
|
|
#define CLKDM_CAN_FORCE_SLEEP (1 << 0)
|
|
#define CLKDM_CAN_FORCE_WAKEUP (1 << 1)
|
|
#define CLKDM_CAN_ENABLE_AUTO (1 << 2)
|
|
#define CLKDM_CAN_DISABLE_AUTO (1 << 3)
|
|
#define CLKDM_NO_AUTODEPS (1 << 4)
|
|
#define CLKDM_ACTIVE_WITH_MPU (1 << 5)
|
|
|
|
#define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
|
|
#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)
|
|
#define CLKDM_CAN_HWSUP_SWSUP (CLKDM_CAN_SWSUP | CLKDM_CAN_HWSUP)
|
|
|
|
/**
|
|
* struct clkdm_autodep - clkdm deps to add when entering/exiting hwsup mode
|
|
* @clkdm: clockdomain to add wkdep+sleepdep on - set name member only
|
|
*
|
|
* A clockdomain that should have wkdeps and sleepdeps added when a
|
|
* clockdomain should stay active in hwsup mode; and conversely,
|
|
* removed when the clockdomain should be allowed to go inactive in
|
|
* hwsup mode.
|
|
*
|
|
* Autodeps are deprecated and should be removed after
|
|
* omap_hwmod-based fine-grained module idle control is added.
|
|
*/
|
|
struct clkdm_autodep {
|
|
union {
|
|
const char *name;
|
|
struct clockdomain *ptr;
|
|
} clkdm;
|
|
};
|
|
|
|
/**
|
|
* struct clkdm_dep - encode dependencies between clockdomains
|
|
* @clkdm_name: clockdomain name
|
|
* @clkdm: pointer to the struct clockdomain of @clkdm_name
|
|
* @wkdep_usecount: Number of wakeup dependencies causing this clkdm to wake
|
|
* @sleepdep_usecount: Number of sleep deps that could prevent clkdm from idle
|
|
*
|
|
* Statically defined. @clkdm is resolved from @clkdm_name at runtime and
|
|
* should not be pre-initialized.
|
|
*
|
|
* XXX Should also include hardware (fixed) dependencies.
|
|
*/
|
|
struct clkdm_dep {
|
|
const char *clkdm_name;
|
|
struct clockdomain *clkdm;
|
|
atomic_t wkdep_usecount;
|
|
atomic_t sleepdep_usecount;
|
|
};
|
|
|
|
/* Possible flags for struct clockdomain._flags */
|
|
#define _CLKDM_FLAG_HWSUP_ENABLED BIT(0)
|
|
|
|
/**
|
|
* struct clockdomain - OMAP clockdomain
|
|
* @name: clockdomain name
|
|
* @pwrdm: powerdomain containing this clockdomain
|
|
* @clktrctrl_reg: CLKSTCTRL reg for the given clock domain
|
|
* @clktrctrl_mask: CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg
|
|
* @flags: Clockdomain capability flags
|
|
* @_flags: Flags for use only by internal clockdomain code
|
|
* @dep_bit: Bit shift of this clockdomain's PM_WKDEP/CM_SLEEPDEP bit
|
|
* @prcm_partition: (OMAP4 only) PRCM partition ID for this clkdm's registers
|
|
* @cm_inst: (OMAP4 only) CM instance register offset
|
|
* @clkdm_offs: (OMAP4 only) CM clockdomain register offset
|
|
* @wkdep_srcs: Clockdomains that can be told to wake this powerdomain up
|
|
* @sleepdep_srcs: Clockdomains that can be told to keep this clkdm from inact
|
|
* @usecount: Usecount tracking
|
|
* @node: list_head to link all clockdomains together
|
|
*
|
|
* @prcm_partition should be a macro from mach-omap2/prcm44xx.h (OMAP4 only)
|
|
* @cm_inst should be a macro ending in _INST from the OMAP4 CM instance
|
|
* definitions (OMAP4 only)
|
|
* @clkdm_offs should be a macro ending in _CDOFFS from the OMAP4 CM instance
|
|
* definitions (OMAP4 only)
|
|
*/
|
|
struct clockdomain {
|
|
const char *name;
|
|
union {
|
|
const char *name;
|
|
struct powerdomain *ptr;
|
|
} pwrdm;
|
|
const u16 clktrctrl_mask;
|
|
const u8 flags;
|
|
u8 _flags;
|
|
const u8 dep_bit;
|
|
const u8 prcm_partition;
|
|
const s16 cm_inst;
|
|
const u16 clkdm_offs;
|
|
struct clkdm_dep *wkdep_srcs;
|
|
struct clkdm_dep *sleepdep_srcs;
|
|
atomic_t usecount;
|
|
struct list_head node;
|
|
spinlock_t lock;
|
|
};
|
|
|
|
/**
|
|
* struct clkdm_ops - Arch specific function implementations
|
|
* @clkdm_add_wkdep: Add a wakeup dependency between clk domains
|
|
* @clkdm_del_wkdep: Delete a wakeup dependency between clk domains
|
|
* @clkdm_read_wkdep: Read wakeup dependency state between clk domains
|
|
* @clkdm_clear_all_wkdeps: Remove all wakeup dependencies from the clk domain
|
|
* @clkdm_add_sleepdep: Add a sleep dependency between clk domains
|
|
* @clkdm_del_sleepdep: Delete a sleep dependency between clk domains
|
|
* @clkdm_read_sleepdep: Read sleep dependency state between clk domains
|
|
* @clkdm_clear_all_sleepdeps: Remove all sleep dependencies from the clk domain
|
|
* @clkdm_sleep: Force a clockdomain to sleep
|
|
* @clkdm_wakeup: Force a clockdomain to wakeup
|
|
* @clkdm_allow_idle: Enable hw supervised idle transitions for clock domain
|
|
* @clkdm_deny_idle: Disable hw supervised idle transitions for clock domain
|
|
* @clkdm_clk_enable: Put the clkdm in right state for a clock enable
|
|
* @clkdm_clk_disable: Put the clkdm in right state for a clock disable
|
|
*/
|
|
struct clkdm_ops {
|
|
int (*clkdm_add_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int (*clkdm_del_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int (*clkdm_read_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int (*clkdm_clear_all_wkdeps)(struct clockdomain *clkdm);
|
|
int (*clkdm_add_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int (*clkdm_del_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int (*clkdm_read_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int (*clkdm_clear_all_sleepdeps)(struct clockdomain *clkdm);
|
|
int (*clkdm_sleep)(struct clockdomain *clkdm);
|
|
int (*clkdm_wakeup)(struct clockdomain *clkdm);
|
|
void (*clkdm_allow_idle)(struct clockdomain *clkdm);
|
|
void (*clkdm_deny_idle)(struct clockdomain *clkdm);
|
|
int (*clkdm_clk_enable)(struct clockdomain *clkdm);
|
|
int (*clkdm_clk_disable)(struct clockdomain *clkdm);
|
|
};
|
|
|
|
int clkdm_register_platform_funcs(struct clkdm_ops *co);
|
|
int clkdm_register_autodeps(struct clkdm_autodep *ia);
|
|
int clkdm_register_clkdms(struct clockdomain **c);
|
|
int clkdm_complete_init(void);
|
|
|
|
struct clockdomain *clkdm_lookup(const char *name);
|
|
|
|
int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user),
|
|
void *user);
|
|
struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm);
|
|
|
|
int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int clkdm_clear_all_wkdeps(struct clockdomain *clkdm);
|
|
int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
|
|
int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm);
|
|
|
|
void clkdm_allow_idle(struct clockdomain *clkdm);
|
|
void clkdm_deny_idle(struct clockdomain *clkdm);
|
|
bool clkdm_in_hwsup(struct clockdomain *clkdm);
|
|
|
|
int clkdm_wakeup(struct clockdomain *clkdm);
|
|
int clkdm_sleep(struct clockdomain *clkdm);
|
|
|
|
int clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk);
|
|
int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk);
|
|
int clkdm_hwmod_enable(struct clockdomain *clkdm, struct omap_hwmod *oh);
|
|
int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh);
|
|
|
|
extern void __init omap242x_clockdomains_init(void);
|
|
extern void __init omap243x_clockdomains_init(void);
|
|
extern void __init omap3xxx_clockdomains_init(void);
|
|
extern void __init am33xx_clockdomains_init(void);
|
|
extern void __init omap44xx_clockdomains_init(void);
|
|
extern void _clkdm_add_autodeps(struct clockdomain *clkdm);
|
|
extern void _clkdm_del_autodeps(struct clockdomain *clkdm);
|
|
|
|
extern struct clkdm_ops omap2_clkdm_operations;
|
|
extern struct clkdm_ops omap3_clkdm_operations;
|
|
extern struct clkdm_ops omap4_clkdm_operations;
|
|
extern struct clkdm_ops am33xx_clkdm_operations;
|
|
|
|
extern struct clkdm_dep gfx_24xx_wkdeps[];
|
|
extern struct clkdm_dep dsp_24xx_wkdeps[];
|
|
extern struct clockdomain wkup_common_clkdm;
|
|
|
|
#endif
|