spi.c File Reference

#include <device/mmio.h>
#include <device/pci_ops.h>
#include <bootstate.h>
#include <console/console.h>
#include <device/pci_ids.h>
#include <device/pci_def.h>
#include <delay.h>
#include <soc/pci_devs.h>
#include <soc/QuarkNcSocId.h>
#include <soc/spi.h>
#include <string.h>

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Functions
void	spi_bios_base (uint32_t bios_base_address)
void	spi_controller_lock (void)
int	spi_protection (uint32_t address, uint32_t length)
static int	xfer (const struct spi_slave *slave, const void *dout, size_t bytesout, void *din, size_t bytesin)
void	spi_init (void)
	Init all SPI controllers with default values and enable all SPI controller. More...
static void	spi_init_cb (void *unused)
	BOOT_STATE_INIT_ENTRY (BS_DEV_INIT, BS_ON_ENTRY, spi_init_cb, NULL)

Variables
struct spi_context	spi_driver_context
const struct spi_ctrlr	spi_driver
const struct spi_ctrlr_buses	spi_ctrlr_bus_map []
const size_t	spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map)

Function Documentation

BOOT_STATE_INIT_ENTRY()

BOOT_STATE_INIT_ENTRY	(	BS_DEV_INIT	,
		BS_ON_ENTRY	,
		spi_init_cb	,
		NULL
	)

spi_bios_base()

void spi_bios_base

(

uint32_t

bios_base_address

)

Definition at line 21 of file spi.c.

References address, flash_ctrlr::bbar, spi_context::ctrlr, and spi_driver_context.

spi_controller_lock()

void spi_controller_lock

(

void

)

Definition at line 31 of file spi.c.

References spi_context::ctrlr, spi_driver_context, SPISTS_CLD, and flash_ctrlr::status.

spi_init()

void spi_init

(

void

)

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

Definition at line 217 of file spi.c.

References B_QNC_LPC_BIOS_CNTL_BIOSWE, B_QNC_LPC_RCBA_EN, B_QNC_LPC_RCBA_MASK, BIOS_ERR, spi_context::ctrlr, dev_find_device(), LPC_DEVID, NULL, flash_ctrlr::opmenu, pci_read_config32(), PCI_VID_INTEL, pci_write_config32(), flash_ctrlr::prefix, printk, R_QNC_LPC_BIOS_CNTL, R_QNC_LPC_RCBA, spi_driver_context, SPITYPE_ADDRESS, SPITYPE_PREFIX, and flash_ctrlr::type.

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spi_init_cb()

static void spi_init_cb ( void *  unused )

static

Definition at line 263 of file spi.c.

References BIOS_DEBUG, printk, spi_flash_probe(), and spi_init().

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spi_protection()

int spi_protection	(	uint32_t	address,
		uint32_t	length
	)

Definition at line 39 of file spi.c.

References address, ARRAY_SIZE, base, BIOS_ERR, spi_context::ctrlr, length, flash_ctrlr::pbr, printk, read32(), spi_driver_context, SPIPBR_PRB, SPIPBR_PRB_SHIFT, SPIPBR_PRL, SPIPBR_WPE, value, and write32().

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xfer()

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

static

Definition at line 76 of file spi.c.

References flash_ctrlr::address, BIOS_ERR, flash_ctrlr::control, spi_context::control, spi_context::ctrlr, flash_ctrlr::data, memcpy(), NULL, flash_ctrlr::opmenu, flash_ctrlr::prefix, spi_context::prefix, printk, spi_driver_context, SPICTL_ACS, SPICTL_AR, SPICTL_CG, SPICTL_COPTR_SHIFT, SPICTL_DBCNT_SHIFT, SPICTL_DC, SPICTL_SOPTR_SHIFT, SPISTS_BA, SPISTS_CD, SPISTS_CIP, SPITYPE_ADDRESS, SPITYPE_PREFIX, flash_ctrlr::status, type, flash_ctrlr::type, and udelay().

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Variable Documentation

spi_ctrlr_bus_map

const struct spi_ctrlr_buses spi_ctrlr_bus_map[]

Initial value:

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

Definition at line 275 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 290 of file spi.c.

spi_driver

const struct spi_ctrlr spi_driver

Initial value:

= {
        .xfer = xfer,
        .max_xfer_size = 64,
}

Definition at line 275 of file spi.c.

spi_driver_context

struct spi_context spi_driver_context

Initial value:

= {
        NULL,
        0,
        0
}

Definition at line 1 of file spi.c.

Referenced by spi_bios_base(), spi_controller_lock(), spi_init(), spi_protection(), and xfer().