uart.c File Reference

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

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Data Structures
struct	tegra124_uart

Functions
static void	tegra124_uart_tx_flush (struct tegra124_uart *uart_ptr)
static int	tegra124_uart_tst_byte (struct tegra124_uart *uart_ptr)
static void	tegra124_uart_init (struct tegra124_uart *uart_ptr)
static unsigned char	tegra124_uart_rx_byte (struct tegra124_uart *uart_ptr)
static void	tegra124_uart_tx_byte (struct tegra124_uart *uart_ptr, unsigned char data)
uintptr_t	uart_platform_base (unsigned int idx)
void	uart_init (unsigned int idx)
unsigned char	uart_rx_byte (unsigned int idx)
void	uart_tx_byte (unsigned int idx, unsigned char data)
void	uart_tx_flush (unsigned int idx)
void	uart_fill_lb (void *data)

Variables
struct tegra124_uart	__packed

Function Documentation

tegra124_uart_init()

static void tegra124_uart_init ( struct tegra124_uart *  uart_ptr )

static

Definition at line 31 of file uart.c.

References mtk_uart::dll, mtk_uart::dlm, mtk_uart::fcr, mtk_uart::ier, mtk_uart::lcr, mtk_uart::mcr, tegra124_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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tegra124_uart_rx_byte()

static unsigned char tegra124_uart_rx_byte ( struct tegra124_uart *  uart_ptr )

static

Definition at line 55 of file uart.c.

References mtk_uart::rbr, read8(), tegra124_uart_tst_byte(), and uart_ptr.

Referenced by uart_rx_byte().

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tegra124_uart_tst_byte()

static int tegra124_uart_tst_byte ( struct tegra124_uart *  uart_ptr )

static

Definition at line 73 of file uart.c.

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

Referenced by tegra124_uart_rx_byte().

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tegra124_uart_tx_byte()

static void tegra124_uart_tx_byte ( struct tegra124_uart *  uart_ptr, unsigned char  data  )

static

Definition at line 62 of file uart.c.

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

Referenced by uart_tx_byte().

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tegra124_uart_tx_flush()

static void tegra124_uart_tx_flush ( struct tegra124_uart *  uart_ptr )

static

Definition at line 68 of file uart.c.

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

Referenced by tegra124_uart_init(), and uart_tx_flush().

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uart_fill_lb()

void uart_fill_lb

(

void *

data

)

Definition at line 117 of file uart.c.

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

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uart_init()

void uart_init

(

unsigned int

idx

)

Definition at line 93 of file uart.c.

References tegra124_uart_init(), uart_platform_baseptr(), and uart_ptr.

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uart_platform_base()

uintptr_t uart_platform_base

(

unsigned int

idx

)

Definition at line 78 of file uart.c.

References base.

uart_rx_byte()

unsigned char uart_rx_byte

(

unsigned int

idx

)

Definition at line 99 of file uart.c.

References tegra124_uart_rx_byte(), uart_platform_baseptr(), and uart_ptr.

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uart_tx_byte()

void uart_tx_byte	(	unsigned int	idx,
		unsigned char	data
	)

Definition at line 105 of file uart.c.

References tegra124_uart_tx_byte(), uart_platform_baseptr(), and uart_ptr.

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uart_tx_flush()

void uart_tx_flush

(

unsigned int

idx

)

Definition at line 111 of file uart.c.

References tegra124_uart_tx_flush(), uart_platform_baseptr(), and uart_ptr.

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Variable Documentation

__packed

struct tegra124_uart __packed