Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#include <linux/console.h>
#include <linux/init.h>
#include <linux/serial_reg.h>
#include <asm/io.h>
 
#define PORT(offset) (0x3f8 + (offset))
 
static inline unsigned int serial_in(int offset)
{
	return inb(PORT(offset));
}
 
static inline void serial_out(int offset, int value)
{
	outb(value, PORT(offset));
}
 
int prom_putchar(char c)
{
	while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)
		;
 
	serial_out(UART_TX, c);
 
	return 1;
}