arch: add MCU_RAW_FREQ for ATmega48P

Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
1 files changed, 5 insertions(+), 0 deletions(-)

M arch/atmega48p.h
M arch/atmega48p.h +5 -0
@@ 23,6 23,11 @@ 
 #ifndef AVR_COMMON_ARCH_ATMEGA48P_H
 #define AVR_COMMON_ARCH_ATMEGA48P_H
 
+/* the built-in oscillator runs at 8MHz */
+#ifndef MCU_RAW_FREQ
+#define MCU_RAW_FREQ	8000000
+#endif
+
 #define RAM_START_ADDR	0x100
 #define RAM_END_ADDR	0x2ff