uart.c File Reference

#include <device/mmio.h>
#include <boot/coreboot_tables.h>
#include <console/uart.h>
#include <soc/clk.h>
#include <soc/cpu.h>
#include <soc/periph.h>
#include <soc/uart.h>
#include <types.h>

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Macros
#define	RX_FIFO_COUNT_MASK   0xff
#define	RX_FIFO_FULL_MASK   (1 << 8)
#define	TX_FIFO_FULL_MASK   (1 << 24)

Functions
static void	serial_setbrg_dev (struct s5p_uart *uart)
static void	exynos5_init_dev (struct s5p_uart *uart)
static int	exynos5_uart_err_check (struct s5p_uart *uart, int op)
static unsigned char	exynos5_uart_rx_byte (struct s5p_uart *uart)
static void	exynos5_uart_tx_byte (struct s5p_uart *uart, unsigned char data)
static void	exynos5_uart_tx_flush (struct s5p_uart *uart)
uintptr_t	uart_platform_base (unsigned int idx)
void	uart_init (unsigned int idx)
	ipq40xx_uart_init - initializes UART More...
unsigned char	uart_rx_byte (unsigned int idx)
	ipq40xx_serial_getc - reads a character More...
void	uart_tx_byte (unsigned int idx, unsigned char data)
	msm_boot_uart_dm_read - reads a word from the RX FIFO. More...
void	uart_tx_flush (unsigned int idx)
	uart_tx_flush - transmits a string of data More...
void	uart_fill_lb (void *data)

Macro Definition Documentation

RX_FIFO_COUNT_MASK

#define RX_FIFO_COUNT_MASK   0xff

Definition at line 12 of file uart.c.

RX_FIFO_FULL_MASK

#define RX_FIFO_FULL_MASK   (1 << 8)

Definition at line 13 of file uart.c.

TX_FIFO_FULL_MASK

#define TX_FIFO_FULL_MASK   (1 << 24)

Definition at line 14 of file uart.c.

Function Documentation

exynos5_init_dev()

static void exynos5_init_dev ( struct s5p_uart *  uart )

static

Definition at line 32 of file uart.c.

References exynos_pinmux_uart3(), serial_setbrg_dev(), s5p_uart::ucon, s5p_uart::ufcon, s5p_uart::ulcon, s5p_uart::umcon, and write32().

Referenced by uart_init().

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exynos5_uart_err_check()

static int exynos5_uart_err_check ( struct s5p_uart *  uart, int  op  )

static

Definition at line 48 of file uart.c.

References mask, read32(), and s5p_uart::uerstat.

Referenced by exynos5_uart_rx_byte(), and exynos5_uart_tx_byte().

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exynos5_uart_rx_byte()

static unsigned char exynos5_uart_rx_byte ( struct s5p_uart *  uart )

static

Definition at line 72 of file uart.c.

References exynos5_uart_err_check(), read32(), read8(), RX_FIFO_COUNT_MASK, RX_FIFO_FULL_MASK, s5p_uart::ufstat, and s5p_uart::urxh.

Referenced by uart_rx_byte().

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exynos5_uart_tx_byte()

static void exynos5_uart_tx_byte ( struct s5p_uart *  uart, unsigned char  data  )

static

Definition at line 87 of file uart.c.

References exynos5_uart_err_check(), read32(), TX_FIFO_FULL_MASK, s5p_uart::ufstat, s5p_uart::utxh, and write8().

Referenced by uart_tx_byte().

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exynos5_uart_tx_flush()

static void exynos5_uart_tx_flush ( struct s5p_uart *  uart )

static

Definition at line 98 of file uart.c.

References read32(), and s5p_uart::ufstat.

Referenced by uart_tx_flush().

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serial_setbrg_dev()

static void serial_setbrg_dev ( struct s5p_uart *  uart )

static

Definition at line 16 of file uart.c.

References clock_get_periph_rate(), get_uart_baudrate(), PERIPH_ID_UART3, s5p_uart::ubrdiv, val, and write32().

Referenced by exynos5_init_dev().

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uart_fill_lb()

void uart_fill_lb

(

void *

data

)

Definition at line 135 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

)

ipq40xx_uart_init - initializes UART

Initializes clocks, GPIO and UART controller.

ipq40xx_uart_init - initializes UART

Initializes clocks, GPIO and UART controller.

Definition at line 111 of file uart.c.

References exynos5_init_dev(), and uart_platform_baseptr().

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uart_platform_base()

uintptr_t uart_platform_base

(

unsigned int

idx

)

Definition at line 103 of file uart.c.

uart_rx_byte()

unsigned char uart_rx_byte

(

unsigned int

idx

)

ipq40xx_serial_getc - reads a character

Returns the character read from serial port.

ipq40xx_serial_getc - reads a character

Returns 1 if data available, 0 otherwise ipq806x_serial_getc - reads a character

Returns the character read from serial port.

Definition at line 117 of file uart.c.

References exynos5_uart_rx_byte(), and uart_platform_baseptr().

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uart_tx_byte()

void uart_tx_byte	(	unsigned int	idx,
		unsigned char	data
	)

msm_boot_uart_dm_read - reads a word from the RX FIFO.

@data: location where the read data is stored @count: no of valid data in the FIFO @wait: indicates blocking call or not blocking call

Reads a word from the RX FIFO. If no data is available blocks if @wait is true, else returns MSM_BOOT_UART_DM_E_RX_NOT_READY.

Definition at line 123 of file uart.c.

References exynos5_uart_tx_byte(), and uart_platform_baseptr().

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uart_tx_flush()

void uart_tx_flush

(

unsigned int

idx

)

uart_tx_flush - transmits a string of data

Parameters

idx	string to transmit

uart_tx_flush - transmits a string of data

Definition at line 129 of file uart.c.

References exynos5_uart_tx_flush(), and uart_platform_baseptr().

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