mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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fb2fc9204f
Convert most of the magic numbers in mach-omap1/clock_data.c to use macros. Clean up a few comments to conform with Documentation/CodingStyle. Mark the current clkops_uart as being OMAP16xx-only, and add some comments to indicate that it does not belong there, for future cleanup. This patch should not cause any functional changes. Signed-off-by: Paul Walmsley <paul@pwsan.com>
114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/*
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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 <tuukka.tikkanen@elektrobit.com>
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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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