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#include <console/console.h>
#include <uart8250.h>
#include <pc80/mc146818rtc.h>
/* Base Address */
#ifndef TTYS0_BASE
#define TTYS0_BASE 0x3f8
#endif
#ifndef TTYS0_BAUD
#define TTYS0_BAUD 115200
#endif
#ifndef TTYS0_DIV
#if ((115200%TTYS0_BAUD) != 0)
#error Bad ttys0 baud rate
#endif
#define TTYS0_DIV (115200/TTYS0_BAUD)
#endif
/* Line Control Settings */
#ifndef TTYS0_LCS
/* Set 8bit, 1 stop bit, no parity */
#define TTYS0_LCS 0x3
#endif
#define UART_LCS TTYS0_LCS
void ttyS0_init(void)
{
static unsigned char div[8]={1,2,3,6,12,24,48,96};
int b_index=0;
unsigned int divisor=TTYS0_DIV;
if(get_option(&b_index,"baud_rate")==0) {
divisor=div[b_index];
}
uart8250_init(TTYS0_BASE, divisor, TTYS0_LCS);
}
void ttyS0_tx_byte(unsigned char data)
{
uart8250_tx_byte(TTYS0_BASE, data);
}
unsigned char ttyS0_rx_byte(void)
{
return uart8250_rx_byte(TTYS0_BASE);
}
int ttyS0_tst_byte(void)
{
return uart8250_can_rx_byte(TTYS0_BASE);
}
static struct console_driver uart8250_console __console = {
.init = ttyS0_init,
.tx_byte = ttyS0_tx_byte,
.rx_byte = ttyS0_rx_byte,
.tst_byte = ttyS0_tst_byte,
};
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