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Commit baf6b281 authored by Ben Dooks's avatar Ben Dooks Committed by Ben Dooks
Browse files

ARM: OSIRIS: CPUFREQ: Add CPU frequency scaling support 



Add CPU frequency scalling support to the Simtec Osiris.

Signed-off-by: default avatarBen Dooks <ben@simtec.co.uk>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 0345b51c

arch/arm/mach-s3c2440/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ config MACH_OSIRIS 
	select PM_SIMTEC if PM

	select S3C24XX_GPIO_EXTRA128

	select S3C2440_XTAL_12000000

	select S3C2410_IOTIMING if S3C2440_CPUFREQ

	select S3C_DEV_USB_HOST

	help

	  Say Y here if you are using the Simtec IM2440D20 module, also

arch/arm/mach-s3c2440/mach-osiris.c

+9 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
#include <asm/irq.h>

#include <asm/mach-types.h>



#include <plat/cpu-freq.h>

#include <plat/regs-serial.h>

#include <mach/regs-gpio.h>

#include <mach/regs-mem.h>
@@ -351,6 +352,12 @@ static struct clk *osiris_clocks[] __initdata = { 
	&s3c24xx_uclk,

};



static struct s3c_cpufreq_board __initdata osiris_cpufreq = {

	.refresh	= 7800, /* refresh period is 7.8usec */

	.auto_io	= 1,

	.need_io	= 1,

};



static void __init osiris_map_io(void)

{

	unsigned long flags;
@@ -402,6 +409,8 @@ static void __init osiris_init(void) 


	s3c_i2c0_set_platdata(NULL);



	s3c_cpufreq_setboard(&osiris_cpufreq);



	i2c_register_board_info(0, osiris_i2c_devs,

				ARRAY_SIZE(osiris_i2c_devs));