diff options
Diffstat (limited to 'arch/arm/mach-ep93xx/include/mach/hardware.h')
| -rw-r--r-- | arch/arm/mach-ep93xx/include/mach/hardware.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/arm/mach-ep93xx/include/mach/hardware.h b/arch/arm/mach-ep93xx/include/mach/hardware.h index 2866297310b..349fa7cb72d 100644 --- a/arch/arm/mach-ep93xx/include/mach/hardware.h +++ b/arch/arm/mach-ep93xx/include/mach/hardware.h @@ -4,12 +4,23 @@ #ifndef __ASM_ARCH_HARDWARE_H #define __ASM_ARCH_HARDWARE_H -#include "ep93xx-regs.h" +#include <mach/ep93xx-regs.h> +#include <mach/platform.h> #define pcibios_assign_all_busses() 0 -#include "platform.h" +/* + * The EP93xx has two external crystal oscillators. To generate the + * required high-frequency clocks, the processor uses two phase-locked- + * loops (PLLs) to multiply the incoming external clock signal to much + * higher frequencies that are then divided down by programmable dividers + * to produce the needed clocks. The PLLs operate independently of one + * another. + */ +#define EP93XX_EXT_CLK_RATE 14745600 +#define EP93XX_EXT_RTC_RATE 32768 -#include "ts72xx.h" +#define EP93XX_KEYTCHCLK_DIV4 (EP93XX_EXT_CLK_RATE / 4) +#define EP93XX_KEYTCHCLK_DIV16 (EP93XX_EXT_CLK_RATE / 16) #endif |