spi.c File Reference

#include <device/mmio.h>
#include <console/console.h>
#include <spi_flash.h>
#include <spi-generic.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <types.h>
#include "SBPLATFORM.h"
#include <vendorcode/amd/cimx/sb800/ECfan.h>

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Macros
#define	AMD_SB_SPI_TX_LEN   8

Functions
static void	reset_internal_fifo_pointer (void)
static void	execute_command (void)
void	spi_init (void)
	Init all SPI controllers with default values and enable all SPI controller. More...
static int	spi_ctrlr_xfer (const struct spi_slave *slave, const void *dout, size_t bytesout, void *din, size_t bytesin)
static void	ImcSleep (void)
static void	ImcWakeup (void)
int	chipset_volatile_group_begin (const struct spi_flash *flash)
int	chipset_volatile_group_end (const struct spi_flash *flash)
static int	xfer_vectors (const struct spi_slave *slave, struct spi_op vectors[], size_t count)

Variables
static uintptr_t	spibar
static const struct spi_ctrlr	spi_ctrlr
const struct spi_ctrlr_buses	spi_ctrlr_bus_map []
const size_t	spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map)

Macro Definition Documentation

AMD_SB_SPI_TX_LEN

#define AMD_SB_SPI_TX_LEN   8

Definition at line 15 of file spi.c.

Function Documentation

chipset_volatile_group_begin()

int chipset_volatile_group_begin

(

const struct spi_flash *

flash

)

Definition at line 121 of file spi.c.

References CONFIG, ImcSleep(), and NULL.

Referenced by spi_flash_volatile_group_begin().

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chipset_volatile_group_end()

int chipset_volatile_group_end

(

const struct spi_flash *

flash

)

Definition at line 130 of file spi.c.

References CONFIG, ImcWakeup(), and NULL.

Referenced by spi_flash_volatile_group_end().

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execute_command()

static void execute_command ( void  )

static

Definition at line 27 of file spi.c.

References read8(), spibar, and write8().

Referenced by spi_ctrlr_xfer().

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ImcSleep()

static void ImcSleep ( void  )

static

Definition at line 95 of file spi.c.

References AccWidthUint8.

Referenced by chipset_volatile_group_begin().

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ImcWakeup()

static void ImcWakeup ( void  )

static

Definition at line 108 of file spi.c.

References AccWidthUint8.

Referenced by chipset_volatile_group_end().

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reset_internal_fifo_pointer()

static void reset_internal_fifo_pointer ( void  )

static

Definition at line 19 of file spi.c.

References read8(), spibar, and write8().

Referenced by spi_ctrlr_xfer().

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spi_ctrlr_xfer()

static int spi_ctrlr_xfer ( const struct spi_slave *  slave, const void *  dout, size_t  bytesout, void *  din, size_t  bytesin  )

static

Definition at line 43 of file spi.c.

References AMD_SB_SPI_TX_LEN, BIOS_DEBUG, count, execute_command(), printk, read8(), reset_internal_fifo_pointer(), spibar, and write8().

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spi_init()

void spi_init

(

void

)

Init all SPI controllers with default values and enable all SPI controller.

Definition at line 35 of file spi.c.

References pci_read_config32(), pcidev_on_root(), and spibar.

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xfer_vectors()

static int xfer_vectors ( const struct spi_slave *  slave, struct spi_op  vectors[], size_t  count  )

static

Definition at line 139 of file spi.c.

Variable Documentation

spi_ctrlr

const struct spi_ctrlr spi_ctrlr

static

Initial value:

= {
        .xfer_vector = xfer_vectors,
        .max_xfer_size = AMD_SB_SPI_TX_LEN,
        .flags = SPI_CNTRLR_DEDUCT_CMD_LEN,
}

Definition at line 139 of file spi.c.

spi_ctrlr_bus_map

const struct spi_ctrlr_buses spi_ctrlr_bus_map[]

Initial value:

= {
        {
                .ctrlr = &spi_ctrlr,
                .bus_start = 0,
                .bus_end = 0,
        },
}

Definition at line 139 of file spi.c.

spi_ctrlr_bus_map_count

const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map)

Definition at line 159 of file spi.c.

spibar

uintptr_t spibar

static

Definition at line 17 of file spi.c.

Referenced by execute_command(), reset_internal_fifo_pointer(), spi_ctrlr_xfer(), and spi_init().