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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/arm/mach-omap1/clock.h
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/*

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 *  linux/arch/arm/mach-omap1/clock.h

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 *

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 *  Copyright (C) 2004 - 2005, 2009 Nokia corporation

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 *  Written by Tuukka Tikkanen <[email protected]>

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 *  Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 */

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#ifndef __ARCH_ARM_MACH_OMAP1_CLOCK_H

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#define __ARCH_ARM_MACH_OMAP1_CLOCK_H

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#include <linux/clk.h>

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#include <plat/clock.h>

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extern int __init omap1_clk_init(void);

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extern int omap1_clk_enable(struct clk *clk);

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extern void omap1_clk_disable(struct clk *clk);

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extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate);

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extern int omap1_clk_set_rate(struct clk *clk, unsigned long rate);

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extern unsigned long omap1_ckctl_recalc(struct clk *clk);

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extern int omap1_set_sossi_rate(struct clk *clk, unsigned long rate);

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extern unsigned long omap1_sossi_recalc(struct clk *clk);

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extern unsigned long omap1_ckctl_recalc_dsp_domain(struct clk *clk);

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extern int omap1_clk_set_rate_dsp_domain(struct clk *clk, unsigned long rate);

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extern int omap1_set_uart_rate(struct clk *clk, unsigned long rate);

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extern unsigned long omap1_uart_recalc(struct clk *clk);

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extern int omap1_set_ext_clk_rate(struct clk *clk, unsigned long rate);

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extern long omap1_round_ext_clk_rate(struct clk *clk, unsigned long rate);

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extern void omap1_init_ext_clk(struct clk *clk);

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extern int omap1_select_table_rate(struct clk *clk, unsigned long rate);

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extern long omap1_round_to_table_rate(struct clk *clk, unsigned long rate);

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extern int omap1_clk_set_rate_ckctl_arm(struct clk *clk, unsigned long rate);

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extern long omap1_clk_round_rate_ckctl_arm(struct clk *clk, unsigned long rate);

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extern unsigned long omap1_watchdog_recalc(struct clk *clk);

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#ifdef CONFIG_OMAP_RESET_CLOCKS

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extern void omap1_clk_disable_unused(struct clk *clk);

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#else

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#define omap1_clk_disable_unused	NULL

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#endif

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struct uart_clk {

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	struct clk	clk;

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	unsigned long	sysc_addr;

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};

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/* Provide a method for preventing idling some ARM IDLECT clocks */

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struct arm_idlect1_clk {

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	struct clk	clk;

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	unsigned long	no_idle_count;

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	__u8		idlect_shift;

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};

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/* ARM_CKCTL bit shifts */

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#define CKCTL_PERDIV_OFFSET	0

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#define CKCTL_LCDDIV_OFFSET	2

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#define CKCTL_ARMDIV_OFFSET	4

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#define CKCTL_DSPDIV_OFFSET	6

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#define CKCTL_TCDIV_OFFSET	8

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#define CKCTL_DSPMMUDIV_OFFSET	10

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/*#define ARM_TIMXO		12*/

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#define EN_DSPCK		13

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/*#define ARM_INTHCK_SEL	14*/ /* Divide-by-2 for mpu inth_ck */

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/* DSP_CKCTL bit shifts */

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#define CKCTL_DSPPERDIV_OFFSET	0

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/* ARM_IDLECT2 bit shifts */

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#define EN_WDTCK	0

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#define EN_XORPCK	1

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#define EN_PERCK	2

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#define EN_LCDCK	3

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#define EN_LBCK		4 /* Not on 1610/1710 */

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/*#define EN_HSABCK	5*/

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#define EN_APICK	6

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#define EN_TIMCK	7

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#define DMACK_REQ	8

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#define EN_GPIOCK	9 /* Not on 1610/1710 */

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/*#define EN_LBFREECK	10*/

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#define EN_CKOUT_ARM	11

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/* ARM_IDLECT3 bit shifts */

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#define EN_OCPI_CK	0

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#define EN_TC1_CK	2

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#define EN_TC2_CK	4

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/* DSP_IDLECT2 bit shifts (0,1,2 are same as for ARM_IDLECT2) */

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#define EN_DSPTIMCK	5

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/* Various register defines for clock controls scattered around OMAP chip */

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#define SDW_MCLK_INV_BIT	2	/* In ULPD_CLKC_CTRL */

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#define USB_MCLK_EN_BIT		4	/* In ULPD_CLKC_CTRL */

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#define USB_HOST_HHC_UHOST_EN	9	/* In MOD_CONF_CTRL_0 */

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#define SWD_ULPD_PLL_CLK_REQ	1	/* In SWD_CLK_DIV_CTRL_SEL */

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#define COM_ULPD_PLL_CLK_REQ	1	/* In COM_CLK_DIV_CTRL_SEL */

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#define SWD_CLK_DIV_CTRL_SEL	0xfffe0874

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#define COM_CLK_DIV_CTRL_SEL	0xfffe0878

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#define SOFT_REQ_REG		0xfffe0834

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#define SOFT_REQ_REG2		0xfffe0880

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extern __u32 arm_idlect1_mask;

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extern struct clk *api_ck_p, *ck_dpll1_p, *ck_ref_p;

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extern const struct clkops clkops_dspck;

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extern const struct clkops clkops_dummy;

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extern const struct clkops clkops_uart_16xx;

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extern const struct clkops clkops_generic;

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#endif

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