uart.c File Reference

#include <device/mmio.h>
#include <boot/coreboot_tables.h>
#include <console/uart.h>
#include <drivers/uart/uart8250reg.h>
#include <stdint.h>

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Data Structures
struct	tegra210_uart

Functions
static void	tegra210_uart_tx_flush (void)
static int	tegra210_uart_tst_byte (void)
static void	tegra210_uart_init (void)
static void	tegra210_uart_tx_byte (unsigned char data)
static unsigned char	tegra210_uart_rx_byte (void)
void	uart_init (unsigned int idx)
void	uart_tx_byte (unsigned int idx, unsigned char data)
void	uart_tx_flush (unsigned int idx)
unsigned char	uart_rx_byte (unsigned int idx)
void	uart_fill_lb (void *data)

Variables
struct tegra210_uart	__packed
static struct tegra210_uart *const	uart_ptr

Function Documentation

tegra210_uart_init()

static void tegra210_uart_init ( void  )

static

Definition at line 35 of file uart.c.

References tegra210_uart::dll, tegra210_uart::dlm, tegra210_uart::fcr, tegra210_uart::ier, tegra210_uart::lcr, tegra210_uart::mcr, tegra210_uart_tx_flush(), UART8250_FCR_CLEAR_RCVR, UART8250_FCR_CLEAR_XMIT, UART8250_FCR_FIFO_EN, UART8250_LCR_DLAB, UART8250_LCR_WLS_8, UART8250_MCR_DTR, UART8250_MCR_RTS, uart_ptr, and write8().

Referenced by uart_init().

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tegra210_uart_rx_byte()

static unsigned char tegra210_uart_rx_byte ( void  )

static

Definition at line 72 of file uart.c.

References tegra210_uart::rbr, read8(), tegra210_uart_tst_byte(), and uart_ptr.

Referenced by uart_rx_byte().

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tegra210_uart_tst_byte()

static int tegra210_uart_tst_byte ( void  )

static

Definition at line 79 of file uart.c.

References tegra210_uart::lsr, read8(), UART8250_LSR_DR, and uart_ptr.

Referenced by tegra210_uart_rx_byte().

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tegra210_uart_tx_byte()

static void tegra210_uart_tx_byte ( unsigned char  data )

static

Definition at line 61 of file uart.c.

References tegra210_uart::lsr, read8(), tegra210_uart::thr, UART8250_LSR_THRE, uart_ptr, and write8().

Referenced by uart_tx_byte().

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tegra210_uart_tx_flush()

static void tegra210_uart_tx_flush ( void  )

static

Definition at line 67 of file uart.c.

References tegra210_uart::lsr, read8(), UART8250_LSR_TEMT, and uart_ptr.

Referenced by tegra210_uart_init(), and uart_tx_flush().

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uart_fill_lb()

void uart_fill_lb

(

void *

data

)

Definition at line 104 of file uart.c.

References get_uart_baudrate(), lb_add_console(), lb_add_serial(), LB_SERIAL_TYPE_MEMORY_MAPPED, LB_TAG_CONSOLE_SERIAL8250MEM, serial, and uart_platform_refclk().

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uart_init()

void uart_init

(

unsigned int

idx

)

Definition at line 84 of file uart.c.

References tegra210_uart_init().

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uart_rx_byte()

unsigned char uart_rx_byte

(

unsigned int

idx

)

Definition at line 99 of file uart.c.

References tegra210_uart_rx_byte().

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uart_tx_byte()

void uart_tx_byte	(	unsigned int	idx,
		unsigned char	data
	)

Definition at line 89 of file uart.c.

References tegra210_uart_tx_byte().

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uart_tx_flush()

void uart_tx_flush

(

unsigned int

idx

)

Definition at line 94 of file uart.c.

References tegra210_uart_tx_flush().

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Variable Documentation

__packed

struct tegra210_uart __packed

uart_ptr

struct tegra210_uart* const uart_ptr

static

Initial value:

=
        (void *)CONFIG_CONSOLE_SERIAL_TEGRA210_UART_ADDRESS

Definition at line 29 of file uart.c.

Referenced by tegra210_uart_init(), tegra210_uart_rx_byte(), tegra210_uart_tst_byte(), tegra210_uart_tx_byte(), and tegra210_uart_tx_flush().