/**
* \brief Configure line control settings for UART
*/
static void a10_uart_configure(struct a10_uart *uart, u32 baud_rate, u8 data_bits,
enum uart_parity parity, u8 stop_bits)
{
u32 reg32;
u16 div;
div = (u16) uart_baudrate_divisor(baud_rate,
uart_platform_refclk(), 16);
/* Enable access to Divisor Latch register */
write32(&uart->lcr, UART8250_LCR_DLAB);
/* Set baudrate */
write32(&uart->dlh, (div >> 8) & 0xff);
write32(&uart->dll, div & 0xff);
/* Set line control */
reg32 = (data_bits - 5) & UART8250_LCR_WLS_MSK;
switch (parity) {
case UART_PARITY_ODD:
reg32 |= UART8250_LCR_PEN;
break;
case UART_PARITY_EVEN:
reg32 |= UART8250_LCR_PEN;
reg32 |= UART8250_LCR_EPS;
break;
case UART_PARITY_NONE: /* Fall through */
default:
break;
}
write32(&uart->lcr, reg32);
}
void uart_init(int idx)
{
unsigned int div;
div = uart_baudrate_divisor(get_uart_baudrate(),
uart_platform_refclk(), uart_input_clock_divider());
sifive_uart_init(uart_platform_baseptr(idx), div);
}
void uart_init(int idx)
{
struct am335x_uart *uart = uart_platform_baseptr(idx);
uint16_t div = (uint16_t) uart_baudrate_divisor(
default_baudrate(), uart_platform_refclk(), 16);
am335x_uart_init(uart, 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(int idx)
{
void *base = uart_platform_baseptr(idx);
if (!base)
return;
unsigned int div;
div = uart_baudrate_divisor(default_baudrate(), uart_platform_refclk(), 16);
uart8250_mem_init(base, div);
}
void uart_init(int idx)
{
void *base = uart_platform_baseptr(idx);
if (!base)
return;
unsigned int div;
div = uart_baudrate_divisor(get_uart_baudrate(),
uart_platform_refclk(), uart_input_clock_divider());
uart8250_mem_init(base, div);
}
void uart_fill_lb(void *data)
{
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_IO_MAPPED;
serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE);
serial.baud = default_baudrate();
serial.regwidth = 1;
serial.input_hertz = uart_platform_refclk();
serial.uart_pci_addr = CONFIG_UART_PCI_ADDR;
lb_add_serial(&serial, data);
lb_add_console(LB_TAG_CONSOLE_SERIAL8250, data);
}
void uart_fill_lb(void *data)
{
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE);
if (!serial.baseaddr)
return;
serial.baud = get_uart_baudrate();
if (IS_ENABLED(CONFIG_DRIVERS_UART_8250MEM_32))
serial.regwidth = sizeof(uint32_t);
else
serial.regwidth = sizeof(uint8_t);
serial.input_hertz = uart_platform_refclk();
serial.uart_pci_addr = CONFIG_UART_PCI_ADDR;
lb_add_serial(&serial, data);
lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data);
}