forked from Minki/linux
61f04ee83c
Looks like these patches were not tested that well.. Signed-off-by: Tony Lindgren <tony@atomide.com>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
|
|
* OMAP4 CM module functions
|
|
*
|
|
* Copyright (C) 2009 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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/list.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/atomic.h>
|
|
|
|
#include "cm.h"
|
|
|
|
/* XXX move this to cm.h */
|
|
/* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */
|
|
#define MAX_MODULE_READY_TIME 20000
|
|
|
|
/*
|
|
* OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK: isolates the IDLEST field in the
|
|
* CM_CLKCTRL register.
|
|
*/
|
|
#define OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK (0x2 << 16)
|
|
|
|
/*
|
|
* OMAP4 prcm_mod u32 fields contain packed data: the CM ID in bit 16 and
|
|
* the PRCM module offset address (from the CM module base) in bits 15-0.
|
|
*/
|
|
#define OMAP4_PRCM_MOD_CM_ID_SHIFT 16
|
|
#define OMAP4_PRCM_MOD_OFFS_MASK 0xffff
|
|
|
|
/**
|
|
* omap4_cm_wait_idlest_ready - wait for a module to leave idle or standby
|
|
* @prcm_mod: PRCM module offset (XXX example)
|
|
* @prcm_dev_offs: PRCM device offset (e.g. MCASP XXX example)
|
|
*
|
|
* XXX document
|
|
*/
|
|
int omap4_cm_wait_idlest_ready(u32 prcm_mod, u8 prcm_dev_offs)
|
|
{
|
|
/* FIXME: Add clock manager related code */
|
|
return 0;
|
|
}
|
|
|