avr: Remove F_CPU compile time definition

Directly use the Kconfig defined CONFIG_CLOCK_FREQ in the code and
avoid defining F_CPU.  Also, remove the unnecessary O2 option - that
is already the default from the main makefile.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-03-28 12:11:02 -04:00
parent 31e78c90e2
commit 18f4d343f5
3 changed files with 7 additions and 5 deletions

View file

@ -30,10 +30,12 @@ serial_init(void)
{
if (CONFIG_SERIAL_BAUD_U2X) {
UCSR0A = 1<<U2X0;
UBRR0 = DIV_ROUND_CLOSEST(F_CPU, 8UL * CONFIG_SERIAL_BAUD) - 1UL;
UBRR0 = DIV_ROUND_CLOSEST(
CONFIG_CLOCK_FREQ, 8UL * CONFIG_SERIAL_BAUD) - 1UL;
} else {
UCSR0A = 0;
UBRR0 = DIV_ROUND_CLOSEST(F_CPU, 16UL * CONFIG_SERIAL_BAUD) - 1UL;
UBRR0 = DIV_ROUND_CLOSEST(
CONFIG_CLOCK_FREQ, 16UL * CONFIG_SERIAL_BAUD) - 1UL;
}
UCSR0C = (1<<UCSZ01) | (1<<UCSZ00);