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| author | Ben Dooks <ben@simtec.co.uk> | 2009-07-30 23:23:32 +0100 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-07-30 23:22:53 +0100 |
| commit | baf6b281cfa7259ab2d1148b879850f699520bc6 (patch) | |
| tree | b13b8a031f66c9d015c03e8fb63ecac8df3671b6 | |
| parent | 0345b51c6a4bfaf6c066b8055d02116432b6a0c9 (diff) | |
| download | kernel_samsung_smdk4412-baf6b281cfa7259ab2d1148b879850f699520bc6.zip kernel_samsung_smdk4412-baf6b281cfa7259ab2d1148b879850f699520bc6.tar.gz kernel_samsung_smdk4412-baf6b281cfa7259ab2d1148b879850f699520bc6.tar.bz2 | |
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>
| -rw-r--r-- | arch/arm/mach-s3c2440/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2440/mach-osiris.c | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index 3cb12e3..8ae1b28 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -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 diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c index cba064b..2105a41 100644 --- a/arch/arm/mach-s3c2440/mach-osiris.c +++ b/arch/arm/mach-s3c2440/mach-osiris.c @@ -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)); |