path: root/arch/arm/mach-omap1/clock.c

/*
 *  linux/arch/arm/mach-omap1/clock.c
 *
 *  Copyright (C) 2004 - 2005 Nokia corporation
 *  Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
 *
 *  Modified to use omap shared clock framework by
 *  Tony Lindgren <tony@atomide.com>
 *
 * 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/module.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>

#include <asm/mach-types.h>
#include <asm/clkdev.h>

#include <mach/cpu.h>
#include <mach/usb.h>
#include <mach/clock.h>
#include <mach/sram.h>

static const struct clkops clkops_generic;
static const struct clkops clkops_uart;
static const struct clkops clkops_dspck;

#include "clock.h"

static int clk_omap1_dummy_enable(struct clk *clk)
{
	return 0;
}

static void clk_omap1_dummy_disable(struct clk *clk)
{
}

static const struct clkops clkops_dummy = {
	.enable = clk_omap1_dummy_enable,
	.disable = clk_omap1_dummy_disable,
};

static struct clk dummy_ck = {
	.name	= "dummy",
	.ops	= &clkops_dummy,
	.flags	= RATE_FIXED,
};

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_310	(1 << 0)
#define CK_730	(1 << 1)
#define CK_1510	(1 << 2)
#define CK_16XX	(1 << 3)

static struct omap_clk omap_clks[] = {
	/* non-ULPD clocks */
	CLK(NULL,	"ck_ref",	&ck_ref,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"ck_dpll1",	&ck_dpll1,	CK_16XX | CK_1510 | CK_310),
	/* CK_GEN1 clocks */
	CLK(NULL,	"ck_dpll1out",	&ck_dpll1out.clk, CK_16XX),
	CLK(NULL,	"ck_sossi",	&sossi_ck,	CK_16XX),
	CLK(NULL,	"arm_ck",	&arm_ck,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"armper_ck",	&armper_ck.clk,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"arm_gpio_ck",	&arm_gpio_ck,	CK_1510 | CK_310),
	CLK(NULL,	"armxor_ck",	&armxor_ck.clk,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"armtim_ck",	&armtim_ck.clk,	CK_16XX | CK_1510 | CK_310),
	CLK("omap_wdt",	"fck",		&armwdt_ck.clk,	CK_16XX | CK_1510 | CK_310),
	CLK("omap_wdt",	"ick",		&armper_ck.clk,	CK_16XX),
	CLK("omap_wdt", "ick",		&dummy_ck,	CK_1510 | CK_310),
	CLK(NULL,	"arminth_ck",	&arminth_ck1510, CK_1510 | CK_310),
	CLK(NULL,	"arminth_ck",	&arminth_ck16xx, CK_16XX),
	/* CK_GEN2 clocks */
	CLK(NULL,	"dsp_ck",	&dsp_ck,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"dspmmu_ck",	&dspmmu_ck,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"dspper_ck",	&dspper_ck,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"dspxor_ck",	&dspxor_ck,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"dsptim_ck",	&dsptim_ck,	CK_16XX | CK_1510 | CK_310),
	/* CK_GEN3 clocks */
	CLK(NULL,	"tc_ck",	&tc_ck.clk,	CK_16XX | CK_1510 | CK_310 | CK_730),
	CLK(NULL,	"tipb_ck",	&tipb_ck,	CK_1510 | CK_310),
	CLK(NULL,	"l3_ocpi_ck",	&l3_ocpi_ck,	CK_16XX),
	CLK(NULL,	"tc1_ck",	&tc1_ck,	CK_16XX),
	CLK(NULL,	"tc2_ck",	&tc2_ck,	CK_16XX),
	CLK(NULL,	"dma_ck",	&dma_ck,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"dma_lcdfree_ck", &dma_lcdfree_ck, CK_16XX),
	CLK(NULL,	"api_ck",	&api_ck.clk,	CK_16XX | CK_1510 | CK_310),
	CLK(NULL,	"lb_ck",	&lb_ck.clk,	CK_1510 | CK_310),
	CLK(NULL,	"rhea1_ck",	&rhea1_ck,	CK_16XX),
	CLK(NULL,	"rhea2_ck",	&rhea2_ck,	CK_16XX),
	CLK(NULL,	"lcd_ck",	&lcd_ck_16xx,	CK_16XX | CK_730),
	CLK(NULL,	"lcd_ck",	&lcd_ck_1510.clk, CK_1510 | CK_310),
	/* ULPD clocks */
	CLK(NULL,	"uart1_ck",	&uart1_1510,	CK_1510 | CK_310),
	CLK(NULL,	"uart1_ck",	&uart1_16xx.clk, CK_16XX),
	CLK(NULL,	"uart2_ck",	&uart2_ck,	CK_16XX |