cpufreq-pxa2xx.c File Reference

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/err.h>
#include <linux/regulator/consumer.h>
#include <linux/io.h>
#include <mach/pxa2xx-regs.h>
#include <mach/smemc.h>

Go to the source code of this file.

Data Structures
struct	pxa_freqs_t

Macros
#define	freq_debug   0
#define	SDRAM_TREF   64 /* standard 64ms SDRAM */
#define	CCLKCFG_TURBO   0x1
#define	CCLKCFG_FCS   0x2
#define	CCLKCFG_HALFTURBO   0x4
#define	CCLKCFG_FASTBUS   0x8
#define	MDREFR_DB2_MASK   (MDREFR_K2DB2 | MDREFR_K1DB2)
#define	MDREFR_DRI_MASK   0xFFF
#define	MDCNFG_DRAC2(mdcnfg)   (((mdcnfg) >> 21) & 0x3)
#define	MDCNFG_DRAC0(mdcnfg)   (((mdcnfg) >> 5) & 0x3)
#define	CCLKCFG   CCLKCFG_TURBO | CCLKCFG_FCS
#define	NUM_PXA25x_RUN_FREQS   ARRAY_SIZE(pxa255_run_freqs)
#define	NUM_PXA25x_TURBO_FREQS   ARRAY_SIZE(pxa255_turbo_freqs)
#define	PXA27x_CCCR(A, L, N2)   (A << 25 | N2 << 7 | L)
#define	CCLKCFG2(B, HT, T)
#define	NUM_PXA27x_FREQS   ARRAY_SIZE(pxa27x_freqs)

Functions
	module_param (pxa27x_maxfreq, uint, 0)
	MODULE_PARM_DESC (pxa27x_maxfreq,"Set the pxa27x maxfreq in MHz""(typically 624=>pxa270, 416=>pxa271, 520=>pxa272)")
	module_param (pxa255_turbo_table, uint, 0)
	MODULE_PARM_DESC (pxa255_turbo_table,"Selects the frequency table (0 = run table, !0 = turbo table)")
unsigned	get_clk_frequency_khz (int info)
	MODULE_AUTHOR ("Intrinsyc Software Inc.")
	MODULE_DESCRIPTION ("CPU frequency changing driver for the PXA architecture")
	MODULE_LICENSE ("GPL")
	module_init (pxa_cpu_init)
	module_exit (pxa_cpu_exit)

Macro Definition Documentation

#define CCLKCFG   CCLKCFG_TURBO | CCLKCFG_FCS

Definition at line 89 of file cpufreq-pxa2xx.c.

#define CCLKCFG2	(		B,
			HT,
			T
	)

Value:

(CCLKCFG_FCS | \
   ((B)  ? CCLKCFG_FASTBUS : 0) | \
   ((HT) ? CCLKCFG_HALFTURBO : 0) | \
   ((T)  ? CCLKCFG_TURBO : 0))

Definition at line 152 of file cpufreq-pxa2xx.c.

#define CCLKCFG_FASTBUS   0x8

Definition at line 78 of file cpufreq-pxa2xx.c.

#define CCLKCFG_FCS   0x2

Definition at line 76 of file cpufreq-pxa2xx.c.

#define CCLKCFG_HALFTURBO   0x4

Definition at line 77 of file cpufreq-pxa2xx.c.

#define CCLKCFG_TURBO   0x1

Definition at line 75 of file cpufreq-pxa2xx.c.

#define freq_debug   0

Definition at line 51 of file cpufreq-pxa2xx.c.

#define MDCNFG_DRAC0

(

mdcnfg

)

(((mdcnfg) >> 5) & 0x3)

Definition at line 83 of file cpufreq-pxa2xx.c.

#define MDCNFG_DRAC2

(

mdcnfg

)

(((mdcnfg) >> 21) & 0x3)

Definition at line 82 of file cpufreq-pxa2xx.c.

#define MDREFR_DB2_MASK   (MDREFR_K2DB2 | MDREFR_K1DB2)

Definition at line 79 of file cpufreq-pxa2xx.c.

#define MDREFR_DRI_MASK   0xFFF

Definition at line 80 of file cpufreq-pxa2xx.c.

#define NUM_PXA25x_RUN_FREQS   ARRAY_SIZE(pxa255_run_freqs)

Definition at line 113 of file cpufreq-pxa2xx.c.

#define NUM_PXA25x_TURBO_FREQS   ARRAY_SIZE(pxa255_turbo_freqs)

Definition at line 114 of file cpufreq-pxa2xx.c.

#define NUM_PXA27x_FREQS   ARRAY_SIZE(pxa27x_freqs)

Definition at line 168 of file cpufreq-pxa2xx.c.

#define PXA27x_CCCR	(		A,
			L,
			N2
	)		(A << 25 | N2 << 7 | L)

Definition at line 151 of file cpufreq-pxa2xx.c.

#define SDRAM_TREF   64 /* standard 64ms SDRAM */

Definition at line 72 of file cpufreq-pxa2xx.c.

Function Documentation

unsigned get_clk_frequency_khz

(

int

info

)

Definition at line 64 of file generic.c.

MODULE_AUTHOR

(

"Intrinsyc Software Inc."

)

MODULE_DESCRIPTION

(

"CPU frequency changing driver for the PXA architecture"

)

module_exit

(

pxa_cpu_exit

)

module_init

(

pxa_cpu_init

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	pxa27x_maxfreq	,
		uint	,
		0
	)

module_param	(	pxa255_turbo_table	,
		uint	,
		0
	)

MODULE_PARM_DESC	(	pxa27x_maxfreq	,
		"Set the pxa27x maxfreq in MHz""(typically 624=>pxa270, 416=>pxa271, 520=>pxa272)"
	)

MODULE_PARM_DESC	(	pxa255_turbo_table	,
		"Selects the frequency table (0 = run table, !0 = turbo table)"
	)