uart.c File Reference

#include <device/mmio.h>
#include <boot/coreboot_tables.h>
#include <console/uart.h>
#include <delay.h>
#include <gpio.h>
#include <soc/clock.h>
#include <soc/blsp.h>
#include <soc/uart.h>
#include <soc/cdp.h>
#include <stdint.h>
#include <soc/iomap.h>

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Data Structures
struct	uart_params_t

Macros
#define	FIFO_DATA_SIZE   4

Functions
void	ipq_configure_gpio (const gpio_func_data_t *gpio, unsigned int count)
static unsigned int	msm_boot_uart_dm_init_rx_transfer (void *uart_dm_base)
	msm_boot_uart_dm_init_rx_transfer - Init Rx transfer More...
static unsigned int	msm_boot_uart_dm_reset (void *base)
	msm_boot_uart_dm_reset - resets UART controller More...
unsigned int	msm_boot_uart_dm_init (void *uart_dm_base)
	msm_boot_uart_dm_init - initilaizes UART controller More...
void	uart_init (unsigned int idx)
	qcs405_uart_init - initializes UART More...
void	qcs405_uart_init (void)
void	uart_tx_flush (unsigned int idx)
	uart_tx_flush - transmits a string of data More...
void	uart_fill_lb (void *data)

Variables
static const uart_params_t	uart_board_param

Macro Definition Documentation

FIFO_DATA_SIZE

#define FIFO_DATA_SIZE   4

Definition at line 16 of file uart.c.

Function Documentation

ipq_configure_gpio()

void ipq_configure_gpio	(	const gpio_func_data_t *	gpio,
		unsigned int	count
	)

Definition at line 24 of file uart.c.

References count, gpio::func, gpio_configure(), and gpio::pull.

Referenced by uart_init().

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msm_boot_uart_dm_init()

unsigned int msm_boot_uart_dm_init

(

void *

uart_dm_base

)

msm_boot_uart_dm_init - initilaizes UART controller

Parameters

uart_dm_base

UART controller base address

Definition at line 132 of file uart.c.

References MSM_BOOT_UART_DM_8_N_1_MODE, MSM_BOOT_UART_DM_CR, MSM_BOOT_UART_DM_CR_TX_ENABLE, MSM_BOOT_UART_DM_DMEN, MSM_BOOT_UART_DM_HCR, MSM_BOOT_UART_DM_IMR, MSM_BOOT_UART_DM_IMR_ENABLED, msm_boot_uart_dm_init_rx_transfer(), MSM_BOOT_UART_DM_IPR, MSM_BOOT_UART_DM_IRDA, MSM_BOOT_UART_DM_MR1, MSM_BOOT_UART_DM_MR2, msm_boot_uart_dm_reset(), MSM_BOOT_UART_DM_RFW_VALUE, MSM_BOOT_UART_DM_RFWR, MSM_BOOT_UART_DM_STALE_TIMEOUT_LSB, MSM_BOOT_UART_DM_TFW_VALUE, MSM_BOOT_UART_DM_TFWR, and write32().

Referenced by uart_init().

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msm_boot_uart_dm_init_rx_transfer()

static unsigned int msm_boot_uart_dm_init_rx_transfer ( void *  uart_dm_base )

static

msm_boot_uart_dm_init_rx_transfer - Init Rx transfer

Parameters

uart_dm_base

UART controller base address

Definition at line 60 of file uart.c.

References MSM_BOOT_UART_DM_CMD_RES_STALE_INT, MSM_BOOT_UART_DM_CMD_RESET_RX, MSM_BOOT_UART_DM_CR, MSM_BOOT_UART_DM_CR_RX_ENABLE, MSM_BOOT_UART_DM_DMRX, MSM_BOOT_UART_DM_DMRX_DEF_VALUE, MSM_BOOT_UART_DM_E_SUCCESS, MSM_BOOT_UART_DM_GCMD_ENA_STALE_EVT, and write32().

Referenced by msm_boot_uart_dm_init().

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msm_boot_uart_dm_reset()

static unsigned int msm_boot_uart_dm_reset ( void *  base )

static

msm_boot_uart_dm_reset - resets UART controller

Parameters

base	UART controller base address

Definition at line 116 of file uart.c.

References base, MSM_BOOT_UART_DM_CMD_RES_STALE_INT, MSM_BOOT_UART_DM_CMD_RES_TX_ERR, MSM_BOOT_UART_DM_CMD_RESET_ERR_STAT, MSM_BOOT_UART_DM_CMD_RESET_RX, MSM_BOOT_UART_DM_CMD_RESET_TX, MSM_BOOT_UART_DM_CR, MSM_BOOT_UART_DM_E_SUCCESS, and write32().

Referenced by msm_boot_uart_dm_init().

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qcs405_uart_init()

void qcs405_uart_init

(

void

)

Definition at line 224 of file uart.c.

References uart_init().

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uart_fill_lb()

void uart_fill_lb

(

void *

data

)

Definition at line 260 of file uart.c.

References get_uart_baudrate(), lb_add_console(), lb_add_serial(), LB_SERIAL_TYPE_MEMORY_MAPPED, LB_TAG_CONSOLE_SERIAL8250MEM, serial, UART2_DM_BASE, and uart_platform_refclk().

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uart_init()

void uart_init

(

unsigned int

idx

)

qcs405_uart_init - initializes UART

ipq40xx_uart_init - initializes UART

Initializes clocks, GPIO and UART controller.

Definition at line 201 of file uart.c.

References clock_configure_uart(), clock_enable_uart(), uart_params_t::dbg_uart_gpio, ipq_configure_gpio(), MSM_BOOT_UART_DM_CSR, msm_boot_uart_dm_init(), NO_OF_DBG_UART_GPIOS, read32(), uart_board_param, uart_params_t::uart_dm_base, and write32().

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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

Definition at line 233 of file uart.c.

References base, MSM_BOOT_UART_DM_SR, MSM_BOOT_UART_DM_SR_TXEMT, read32(), uart_board_param, and uart_params_t::uart_dm_base.

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Variable Documentation

uart_board_param

const uart_params_t uart_board_param

static

Initial value:

= {
        .uart_dm_base = UART2_DM_BASE,
        .blsp_uart = BLSP1_UART2,
        .dbg_uart_gpio = {
                {
                        .gpio = GPIO(17),
                        .func = 1,
                        .dir = GPIO_OUTPUT,
                        .pull = GPIO_PULL_UP,
                        .enable = GPIO_OUTPUT
                },
                {
                        .gpio = GPIO(18),
                        .func = 1,
                        .dir = GPIO_INPUT,
                        .pull = GPIO_NO_PULL,
                        .enable = GPIO_INPUT
                },
        },
}

Definition at line 35 of file uart.c.

Referenced by uart_init(), and uart_tx_flush().