path: root/arch/arm/mach-omap2/clock34xx.c

/*
 * OMAP3-specific clock framework functions
 *
 * Copyright (C) 2007-2008 Texas Instruments, Inc.
 * Copyright (C) 2007-2009 Nokia Corporation
 *
 * Written by Paul Walmsley
 * Testing and integration fixes by Jouni Högander
 *
 * Parts of this code are based on code written by
 * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu
 *
 * 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/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/limits.h>
#include <linux/bitops.h>

#include <mach/cpu.h>
#include <mach/clock.h>
#include <mach/sram.h>
#include <asm/div64.h>
#include <asm/clkdev.h>

#include <mach/sdrc.h>
#include "clock.h"
#include "prm.h"
#include "prm-regbits-34xx.h"
#include "cm.h"
#include "cm-regbits-34xx.h"

static const struct clkops clkops_noncore_dpll_ops;

static void omap3430es2_clk_ssi_find_idlest(struct clk *clk,
					    void __iomem **idlest_reg,
					    u8 *idlest_bit);
static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk,
					    void __iomem **idlest_reg,
					    u8 *idlest_bit);
static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk,
						    void __iomem **idlest_reg,
						    u8 *idlest_bit);

static const struct clkops clkops_omap3430es2_ssi_wait = {
	.enable		= omap2_dflt_clk_enable,
	.disable	= omap2_dflt_clk_disable,
	.find_idlest	= omap3430es2_clk_ssi_find_idlest,
	.find_companion = omap2_clk_dflt_find_companion,
};

static const struct clkops clkops_omap3430es2_hsotgusb_wait = {
	.enable		= omap2_dflt_clk_enable,
	.disable	= omap2_dflt_clk_disable,
	.find_idlest	= omap3430es2_clk_hsotgusb_find_idlest,
	.find_companion = omap2_clk_dflt_find_companion,
};

static const struct clkops clkops_omap3430es2_dss_usbhost_wait = {
	.enable		= omap2_dflt_clk_enable,
	.disable	= omap2_dflt_clk_disable,
	.find_idlest	= omap3430es2_clk_dss_usbhost_find_idlest,
	.find_companion = omap2_clk_dflt_find_companion,
};

#include "clock34xx.h"

struct omap_clk {
	u32		cpu;
	struct clk_lookup lk;
};

#define CLK(dev, con, ck, cp) 		\
	{				\
		 .cpu = cp,		\
		.lk = {			\
			.dev_id = dev,	\
			.con_id = con,	\
			.clk = ck,	\
		},			\
	}

#define CK_343X		(1 << 0)
#define CK_3430ES1	(1 << 1)
#define CK_3430ES2	(1 << 2)

static struct omap_clk omap34xx_clks[] = {
	CLK(NULL,	"omap_32k_fck",	&omap_32k_fck,	CK_343X),
	CLK(NULL,	"virt_12m_ck",	&virt_12m_ck,	CK_343X),
	CLK(NULL,	"virt_13m_ck",	&virt_13m_ck,	CK_343X),
	CLK(NULL,	"virt_16_8m_ck", &virt_16_8m_ck, CK_3430ES2),
	CLK(NULL,	"virt_19_2m_ck", &virt_19_2m_ck, CK_343X),
	CLK(NULL,	"virt_26m_ck",	&virt_26m_ck,	CK_343X),
	CLK(NULL,	"virt_38_4m_ck", &virt_38_4m_ck, CK_343X),
	CLK(NULL,	"osc_sys_ck",	&osc_sys_ck,	CK_343X),
	CLK(NULL,	"sys_ck",	&sys_ck,	CK_343X),
	CLK(NULL,	"sys_altclk",	&sys_altclk,	CK_343X),
	CLK(NULL,	"mcbsp_clks",	&mcbsp_clks,	CK_343X),
	CLK(NULL,	"sys_clkout1",	&sys_clkout1,</