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/*
* OMAP2xxx APLL clock control functions
*
* Copyright (C) 2005-2008 Texas Instruments, Inc.
* Copyright (C) 2004-2010 Nokia Corporation
*
* Contacts:
* Richard Woodruff <r-woodruff2@ti.com>
* Paul Walmsley
*
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
* Gordon McNutt and RidgeRun, Inc.
*
* 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.
*/
#undef DEBUG
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/io.h>
#include "clock.h"
#include "clock2xxx.h"
#include "cm2xxx.h"
#include "cm-regbits-24xx.h"
/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */
#define EN_APLL_STOPPED 0
#define EN_APLL_LOCKED 3
/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */
#define APLLS_CLKIN_19_2MHZ 0
#define APLLS_CLKIN_13MHZ 2
#define APLLS_CLKIN_12MHZ 3
/* Private functions */
static void _apll96_allow_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll96_auto_low_power_stop();
}
static void _apll96_deny_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll96_disable_autoidle();
}
static void _apll54_allow_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll54_auto_low_power_stop();
}
static void _apll54_deny_idle(struct clk_hw_omap *clk)
{
omap2xxx_cm_set_apll54_disable_autoidle();
}
/* Public data */
const struct clk_hw_omap_ops clkhwops_apll54 = {
.allow_idle = _apll54_allow_idle,
.deny_idle = _apll54_deny_idle,
};
const struct clk_hw_omap_ops clkhwops_apll96 = {
.allow_idle = _apll96_allow_idle,
.deny_idle = _apll96_deny_idle,
};
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