void uart_init(void)
{
#if CONFIG_USE_OPTION_TABLE
static const unsigned char divisor[] = { 1,2,3,6,12,24,48,96 };
unsigned ttys0_div, ttys0_index;
ttys0_index = read_option(CMOS_VSTART_baud_rate, CMOS_VLEN_baud_rate, 0);
ttys0_index &= 7;
ttys0_div = divisor[ttys0_index];
uart8250_init(CONFIG_TTYS0_BASE, ttys0_div, UART_LCS);
#else
uart8250_init(CONFIG_TTYS0_BASE, CONFIG_TTYS0_DIV, UART_LCS);
#endif
}
void uart_init(int idx)
{
unsigned int div;
div = uart_baudrate_divisor(default_baudrate(), BAUDRATE_REFCLK,
BAUDRATE_OVERSAMPLE);
uart8250_init(uart_platform_base(idx), div);
}
void uart_init(int idx)
{
unsigned int div;
div = uart_baudrate_divisor(default_baudrate(), uart_platform_refclk(),
uart_input_clock_divider());
uart8250_init(uart_platform_base(idx), div);
}
void uart_init(void)
{
/* TODO the divisor calculation is hard coded to standard UARTs. Some
* UARTs won't work with these values. This should be a property of the
* UART used, worst case a Kconfig variable. For now live with hard
* codes as the only devices that might be different are the iWave
* iRainbowG6 and the OXPCIe952 card (and the latter is memory mapped)
*/
unsigned int div = (115200 / CONFIG_TTYS0_BAUD);
#if !defined(__SMM__) && CONFIG_USE_OPTION_TABLE
static const unsigned char divisor[8] = { 1, 2, 3, 6, 12, 24, 48, 96 };
unsigned b_index = 0;
#if defined(__PRE_RAM__)
b_index = read_option(baud_rate, 0);
b_index &= 7;
div = divisor[b_index];
#else
if (get_option(&b_index, "baud_rate") == CB_SUCCESS)
div = divisor[b_index];
#endif
#endif
uart8250_init(CONFIG_TTYS0_BASE, div);
}
static void ttyS0_init(void)
{
static const unsigned char div[8]={1,2,3,6,12,24,48,96};
int b_index=0;
unsigned int divisor=CONFIG_TTYS0_DIV;
if(get_option(&b_index,"baud_rate")==0) {
divisor=div[b_index];
}
uart8250_init(CONFIG_TTYS0_BASE, divisor, CONFIG_TTYS0_LCS);
}
