Quelle clock.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux / arch / arm / mach - omap1 / clock . h
*
* Copyright ( C ) 2004 - 2005 , 2009 Nokia corporation
* Written by Tuukka Tikkanen < tuukka . tikkanen @ elektrobit . com >
* Based on clocks . h by Tony Lindgren , Gordon McNutt and RidgeRun , Inc
*/
#ifndef __ARCH_ARM_MACH_OMAP1_CLOCK_H
#define __ARCH_ARM_MACH_OMAP1_CLOCK_H
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
struct module;
struct omap1_clk;
struct omap_clk {
u16 cpu;
struct clk_lookup lk;
};
#define CLK(dev, con, ck, cp) \
{ \
.cpu = cp, \
.lk = { \
.dev_id = dev, \
.con_id = con, \
.clk_hw = ck, \
}, \
}
/* Platform flags for the clkdev-OMAP integration code */
#define CK_310 (1 << 0 )
#define CK_7XX (1 << 1 ) /* 7xx, 850 */
#define CK_1510 (1 << 2 )
#define CK_16XX (1 << 3 ) /* 16xx, 17xx, 5912 */
#define CK_1710 (1 << 4 ) /* 1710 extra for rate selection */
/**
* struct clkops - some clock function pointers
* @ enable : fn ptr that enables the current clock in hardware
* @ disable : fn ptr that enables the current clock in hardware
* @ allow_idle : fn ptr that enables autoidle for the current clock in hardware
*/
struct clkops {
int (*enable)(struct omap1_clk *clk);
void (*disable)(struct omap1_clk *clk);
};
/*
* struct clk . flags possibilities
*
* XXX document the rest of the clock flags here
*/
#define ENABLE_REG_32BIT (1 << 0 ) /* Use 32-bit access */
#define CLOCK_IDLE_CONTROL (1 << 1 )
#define CLOCK_NO_IDLE_PARENT (1 << 2 )
/**
* struct omap1_clk - OMAP1 struct clk
* @ hw : struct clk_hw for common clock framework integration
* @ ops : struct clkops * for this clock
* @ rate : current clock rate
* @ enable_reg : register to write to enable the clock ( see @ enable_bit )
* @ recalc : fn ptr that returns the clock ' s current rate
* @ set_rate : fn ptr that can change the clock ' s current rate
* @ round_rate : fn ptr that can round the clock ' s current rate
* @ init : fn ptr to do clock - specific initialization
* @ enable_bit : bitshift to write to enable / disable the clock ( see @ enable_reg )
* @ fixed_div : when > 0 , this clock ' s rate is its parent ' s rate / @ fixed_div
* @ flags : see " struct clk . flags possibilities " above
* @ rate_offset : bitshift for rate selection bitfield ( OMAP1 only )
*/
struct omap1_clk {
struct clk_hw hw;
const struct clkops *ops;
unsigned long rate;
void __iomem *enable_reg;
unsigned long (*recalc)(struct omap1_clk *clk, unsigned long rate);
int (*set_rate)(struct omap1_clk *clk, unsigned long rate,
unsigned long p_rate);
long (*round_rate)(struct omap1_clk *clk, unsigned long rate,
unsigned long *p_rate);
int (*init)(struct omap1_clk *clk);
u8 enable_bit;
u8 fixed_div;
u8 flags;
u8 rate_offset;
};
#define to_omap1_clk(_hw) container_of(_hw, struct omap1_clk, hw)
void propagate_rate(struct omap1_clk *clk);
unsigned long followparent_recalc(struct omap1_clk *clk, unsigned long p_rate);
unsigned long omap_fixed_divisor_recalc(struct omap1_clk *clk, unsigned long p_rate);
extern struct omap1_clk dummy_ck;
int omap1_clk_init(void );
void omap1_clk_late_init(void );
unsigned long omap1_ckctl_recalc(struct omap1_clk *clk, unsigned long p_rate);
long omap1_round_sossi_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
int omap1_set_sossi_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
unsigned long omap1_sossi_recalc(struct omap1_clk *clk, unsigned long p_rate);
unsigned long omap1_ckctl_recalc_dsp_domain(struct omap1_clk *clk, unsigned long p_rate);
int omap1_clk_set_rate_dsp_domain(struct omap1_clk *clk, unsigned long rate,
unsigned long p_rate);
long omap1_round_uart_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
int omap1_set_uart_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
unsigned long omap1_uart_recalc(struct omap1_clk *clk, unsigned long p_rate);
int omap1_set_ext_clk_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
long omap1_round_ext_clk_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
int omap1_init_ext_clk(struct omap1_clk *clk);
int omap1_select_table_rate(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
long omap1_round_to_table_rate(struct omap1_clk *clk, unsigned long rate, unsigned long *p_rate);
int omap1_clk_set_rate_ckctl_arm(struct omap1_clk *clk, unsigned long rate, unsigned long p_rate);
long omap1_clk_round_rate_ckctl_arm(struct omap1_clk *clk, unsigned long rate,
unsigned long *p_rate);
struct uart_clk {
struct omap1_clk clk;
unsigned long sysc_addr;
};
/* Provide a method for preventing idling some ARM IDLECT clocks */
struct arm_idlect1_clk {
struct omap1_clk clk;
unsigned long no_idle_count;
__u8 idlect_shift;
};
/* ARM_CKCTL bit shifts */
#define CKCTL_PERDIV_OFFSET 0
#define CKCTL_LCDDIV_OFFSET 2
#define CKCTL_ARMDIV_OFFSET 4
#define CKCTL_DSPDIV_OFFSET 6
#define CKCTL_TCDIV_OFFSET 8
#define CKCTL_DSPMMUDIV_OFFSET 10
/*#define ARM_TIMXO 12*/
#define EN_DSPCK 13
/*#define ARM_INTHCK_SEL 14*/ /* Divide-by-2 for mpu inth_ck */
/* DSP_CKCTL bit shifts */
#define CKCTL_DSPPERDIV_OFFSET 0
/* ARM_IDLECT2 bit shifts */
#define EN_WDTCK 0
#define EN_XORPCK 1
#define EN_PERCK 2
#define EN_LCDCK 3
#define EN_LBCK 4 /* Not on 1610/1710 */
/*#define EN_HSABCK 5*/
#define EN_APICK 6
#define EN_TIMCK 7
#define DMACK_REQ 8
#define EN_GPIOCK 9 /* Not on 1610/1710 */
/*#define EN_LBFREECK 10*/
#define EN_CKOUT_ARM 11
/* ARM_IDLECT3 bit shifts */
#define EN_OCPI_CK 0
#define EN_TC1_CK 2
#define EN_TC2_CK 4
/* DSP_IDLECT2 bit shifts (0,1,2 are same as for ARM_IDLECT2) */
#define EN_DSPTIMCK 5
/* Various register defines for clock controls scattered around OMAP chip */
#define SDW_MCLK_INV_BIT 2 /* In ULPD_CLKC_CTRL */
#define USB_MCLK_EN_BIT 4 /* In ULPD_CLKC_CTRL */
#define USB_HOST_HHC_UHOST_EN 9 /* In MOD_CONF_CTRL_0 */
#define SWD_ULPD_PLL_CLK_REQ 1 /* In SWD_CLK_DIV_CTRL_SEL */
#define COM_ULPD_PLL_CLK_REQ 1 /* In COM_CLK_DIV_CTRL_SEL */
#define SWD_CLK_DIV_CTRL_SEL 0 xfffe0874
#define COM_CLK_DIV_CTRL_SEL 0 xfffe0878
#define SOFT_REQ_REG 0 xfffe0834
#define SOFT_REQ_REG2 0 xfffe0880
extern __u32 arm_idlect1_mask;
extern struct omap1_clk *api_ck_p, *ck_dpll1_p, *ck_ref_p;
extern const struct clkops clkops_dspck;
extern const struct clkops clkops_uart_16xx;
extern const struct clkops clkops_generic;
/* used for passing SoC type to omap1_{select,round_to}_table_rate() */
extern u32 cpu_mask;
extern const struct clk_ops omap1_clk_null_ops;
extern const struct clk_ops omap1_clk_gate_ops;
extern const struct clk_ops omap1_clk_rate_ops;
extern const struct clk_ops omap1_clk_full_ops;
#endif
Messung V0.5 in Prozent C=86 H=100 G=93
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-09-28)
¤
*© Formatika GbR, Deutschland
2026-10-10
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