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); }