Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx> --- arch/arm/mach-clps711x/Kconfig | 13 +++++++++++++ arch/arm/mach-clps711x/lowlevel.c | 4 ++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig index f0adeda..d2873b4 100644 --- a/arch/arm/mach-clps711x/Kconfig +++ b/arch/arm/mach-clps711x/Kconfig @@ -10,6 +10,19 @@ config MACH_CLEP7212 endchoice +menu "CLPS711X specific settings" + +config CLPS711X_CPU_PLL_MULT + int "CPU PLL multiplier (20-50)" + range 20 50 + default "40" + help + Define CPU PLL multiplier. PLL is calculated by formula: + PLL Frequency = (PLL Multiplier / 2) * 3686400 Hz + Default value is 40, for achieve 73 MHz. + +endmenu + config BOARDINFO default "Cirrus Logic CLEP7212" if MACH_CLEP7212 diff --git a/arch/arm/mach-clps711x/lowlevel.c b/arch/arm/mach-clps711x/lowlevel.c index 0249c60..245ac93 100644 --- a/arch/arm/mach-clps711x/lowlevel.c +++ b/arch/arm/mach-clps711x/lowlevel.c @@ -18,10 +18,10 @@ #include <mach/clps711x.h> #define MAIN_CLOCK 3686400 -#define CPU_SPEED 92160000 +#define CPU_SPEED ((CONFIG_CLPS711X_CPU_PLL_MULT * MAIN_CLOCK) / 2) #define BUS_SPEED (CPU_SPEED / 2) -#define PLL_VALUE (((CPU_SPEED * 2) / MAIN_CLOCK) << 24) +#define PLL_VALUE (CONFIG_CLPS711X_CPU_PLL_MULT << 24) #define SDRAM_REFRESH_RATE (64 * (BUS_SPEED / (8192 * 1000))) void __naked __bare_init barebox_arm_reset_vector(void) -- 1.7.3.4 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
