uart.c File Reference

#include <console/console.h>
#include <commonlib/helpers.h>
#include <device/device.h>
#include <device/mmio.h>
#include <amdblocks/gpio.h>
#include <amdblocks/aoac.h>
#include <amdblocks/uart.h>
#include <soc/aoac_defs.h>
#include <soc/southbridge.h>
#include <soc/gpio.h>
#include <soc/uart.h>
#include <types.h>

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Functions
uintptr_t	get_uart_base (unsigned int idx)
void	clear_uart_legacy_config (void)
void	set_uart_config (unsigned int idx)
static const char *	uart_acpi_name (const struct device *dev)
static void	uart_enable (struct device *dev)
static void	uart_read_resources (struct device *dev)

Variables
struct {
uintptr_t   base
struct soc_amd_gpio   mux [2]
}	uart_info []
struct device_operations	picasso_uart_mmio_ops

Function Documentation

clear_uart_legacy_config()

void clear_uart_legacy_config

(

void

)

Definition at line 46 of file uart.c.

References FCH_LEGACY_UART_DECODE, and write16().

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get_uart_base()

uintptr_t get_uart_base

(

unsigned int

idx

)

Definition at line 38 of file uart.c.

References ARRAY_SIZE, and uart_info.

set_uart_config()

void set_uart_config

(

unsigned int

idx

)

Definition at line 51 of file uart.c.

References ARRAY_SIZE, gpio_configure_pads(), and uart_info.

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uart_acpi_name()

static const char* uart_acpi_name ( const struct device *  dev )

static

Definition at line 59 of file uart.c.

References mmio_path::addr, APU_UART0_BASE, APU_UART1_BASE, device_path::mmio, NULL, and device::path.

uart_enable()

static void uart_enable ( struct device *  dev )

static

Definition at line 76 of file uart.c.

References mmio_path::addr, APU_UART0_BASE, APU_UART1_BASE, BIOS_ERR, dev_id, dev_path(), device::enabled, FCH_AOAC_DEV_UART0, FCH_AOAC_DEV_UART1, FCH_AOAC_DEV_UART2, FCH_AOAC_DEV_UART3, device_path::mmio, device::path, power_off_aoac_device(), power_on_aoac_device(), printk, and wait_for_aoac_enabled().

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uart_read_resources()

static void uart_read_resources ( struct device *  dev )

static

Definition at line 106 of file uart.c.

Variable Documentation

base

uintptr_t base

Definition at line 17 of file uart.c.

mux

struct soc_amd_gpio mux[2]

Definition at line 17 of file uart.c.

picasso_uart_mmio_ops

struct device_operations picasso_uart_mmio_ops

Initial value:

= {
        .read_resources = uart_read_resources,
        .set_resources = noop_set_resources,
        .scan_bus = scan_static_bus,
        .acpi_name = uart_acpi_name,
        .enable = uart_enable,
        .acpi_fill_ssdt = uart_inject_ssdt,
}

Definition at line 106 of file uart.c.

Referenced by set_mmio_dev_ops().

const { ... } uart_info[]

Initial value:

= {
        [0] = { APU_UART0_BASE, {
                        PAD_NF(GPIO_138, UART0_TXD, PULL_NONE),
                        PAD_NF(GPIO_136, UART0_RXD, PULL_NONE),
        } },
        [1] = { APU_UART1_BASE, {
                        PAD_NF(GPIO_143, UART1_TXD, PULL_NONE),
                        PAD_NF(GPIO_141, UART1_RXD, PULL_NONE),
        } },
        [2] = { APU_UART2_BASE, {
                        PAD_NF(GPIO_137, UART2_TXD, PULL_NONE),
                        PAD_NF(GPIO_135, UART2_RXD, PULL_NONE),
        } },
        [3] = { APU_UART3_BASE, {
                        PAD_NF(GPIO_140, UART3_TXD, PULL_NONE),
                        PAD_NF(GPIO_142, UART3_RXD, PULL_NONE),
        } },
}

Referenced by get_uart_base(), and set_uart_config().