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ARM: OSIRIS: CPUFREQ: Add CPU frequency scaling support
Add CPU frequency scalling support to the Simtec Osiris. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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2 changed files with 10 additions and 0 deletions
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@ -46,6 +46,7 @@ config MACH_OSIRIS
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select PM_SIMTEC if PM
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select S3C24XX_GPIO_EXTRA128
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select S3C2440_XTAL_12000000
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select S3C2410_IOTIMING if S3C2440_CPUFREQ
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select S3C_DEV_USB_HOST
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help
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Say Y here if you are using the Simtec IM2440D20 module, also
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@ -34,6 +34,7 @@
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <plat/cpu-freq.h>
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#include <plat/regs-serial.h>
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#include <mach/regs-gpio.h>
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#include <mach/regs-mem.h>
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@ -351,6 +352,12 @@ static struct clk *osiris_clocks[] __initdata = {
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&s3c24xx_uclk,
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};
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static struct s3c_cpufreq_board __initdata osiris_cpufreq = {
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.refresh = 7800, /* refresh period is 7.8usec */
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.auto_io = 1,
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.need_io = 1,
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};
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static void __init osiris_map_io(void)
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{
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unsigned long flags;
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@ -402,6 +409,8 @@ static void __init osiris_init(void)
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s3c_i2c0_set_platdata(NULL);
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s3c_cpufreq_setboard(&osiris_cpufreq);
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i2c_register_board_info(0, osiris_i2c_devs,
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ARRAY_SIZE(osiris_i2c_devs));
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