spi.c File Reference

#include <device/device.h>
#include <device/mmio.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <device/spi.h>
#include <intelblocks/fast_spi.h>
#include <intelblocks/gspi.h>
#include <intelblocks/spi.h>
#include <soc/pci_devs.h>
#include <spi-generic.h>

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Data Structures
union	spi_bios_gpr0

Macros
#define	__SIMPLE_DEVICE__
#define	MMIO_BIOS_GPR0   0x98

Functions
static uintptr_t	get_spi_bar (pci_devfn_t dev)
static uint32_t	spi_read_bar (pci_devfn_t dev, uint32_t offset)
static uint32_t	spi_read_bios_gpr0 (void)
static uint32_t	spi_get_wp_cse_ro_start_offset (union spi_bios_gpr0 bios_gpr0)
static uint32_t	spi_get_wp_cse_ro_limit (union spi_bios_gpr0 bios_gpr0)
bool	is_spi_wp_cse_ro_en (void)
void	spi_get_wp_cse_ro_range (uint32_t *base, uint32_t *limit)
static int	spi_dev_to_bus (struct device *dev)

Variables
const struct spi_ctrlr_buses	spi_ctrlr_bus_map []
const size_t	spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map)
static struct spi_bus_operations	spi_bus_ops
static struct device_operations	spi_dev_ops
static const unsigned short	pci_device_ids []
static const struct pci_driver pch_spi	__pci_driver

Macro Definition Documentation

__SIMPLE_DEVICE__

#define __SIMPLE_DEVICE__

Definition at line 3 of file spi.c.

MMIO_BIOS_GPR0

#define MMIO_BIOS_GPR0   0x98

Definition at line 27 of file spi.c.

Function Documentation

get_spi_bar()

static uintptr_t get_spi_bar ( pci_devfn_t  dev )

static

Definition at line 54 of file spi.c.

References assert, PCI_BASE_ADDRESS_0, PCI_BASE_ADDRESS_MEM_ATTR_MASK, and pci_read_config32().

Referenced by spi_read_bar().

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is_spi_wp_cse_ro_en()

bool is_spi_wp_cse_ro_en

(

void

)

Definition at line 87 of file spi.c.

References spi_bios_gpr0::data, spi_bios_gpr0::fields, spi_read_bios_gpr0(), and spi_bios_gpr0::write_protect_en.

Referenced by log_me_ro_write_protection_info().

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spi_dev_to_bus()

static int spi_dev_to_bus ( struct device *  dev )

static

Definition at line 104 of file spi.c.

spi_get_wp_cse_ro_limit()

static uint32_t spi_get_wp_cse_ro_limit ( union spi_bios_gpr0  bios_gpr0 )

static

Definition at line 82 of file spi.c.

References spi_bios_gpr0::fields, and spi_bios_gpr0::protect_range_limit.

Referenced by spi_get_wp_cse_ro_range().

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spi_get_wp_cse_ro_range()

void spi_get_wp_cse_ro_range	(	uint32_t *	base,
		uint32_t *	limit
	)

Definition at line 95 of file spi.c.

References base, spi_bios_gpr0::data, spi_get_wp_cse_ro_limit(), spi_get_wp_cse_ro_start_offset(), and spi_read_bios_gpr0().

Referenced by log_me_ro_write_protection_info().

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spi_get_wp_cse_ro_start_offset()

static uint32_t spi_get_wp_cse_ro_start_offset ( union spi_bios_gpr0  bios_gpr0 )

static

Definition at line 77 of file spi.c.

References spi_bios_gpr0::fields, and spi_bios_gpr0::protect_range_base.

Referenced by spi_get_wp_cse_ro_range().

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spi_read_bar()

static uint32_t spi_read_bar ( pci_devfn_t  dev, uint32_t  offset  )

static

Definition at line 67 of file spi.c.

References get_spi_bar(), offset, and read32p().

Referenced by spi_read_bios_gpr0().

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spi_read_bios_gpr0()

static uint32_t spi_read_bios_gpr0 ( void  )

static

Definition at line 72 of file spi.c.

References MMIO_BIOS_GPR0, PCH_DEV_SPI, and spi_read_bar().

Referenced by is_spi_wp_cse_ro_en(), and spi_get_wp_cse_ro_range().

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Variable Documentation

__pci_driver

const struct pci_driver pch_spi __pci_driver

static

Initial value:

= {
        .ops                            = &spi_dev_ops,
        .vendor                         = PCI_VID_INTEL,
        .devices                        = pci_device_ids,
}

Definition at line 122 of file spi.c.

pci_device_ids

const unsigned short pci_device_ids[]

static

Definition at line 122 of file spi.c.

spi_bus_ops

struct spi_bus_operations spi_bus_ops

static

Initial value:

= {
        .dev_to_bus                     = &spi_dev_to_bus,
}

Definition at line 104 of file spi.c.

spi_ctrlr_bus_map

const struct spi_ctrlr_buses spi_ctrlr_bus_map[]

Initial value:

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

Definition at line 1 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 25 of file spi.c.

spi_dev_ops

struct device_operations spi_dev_ops

static

Initial value:

= {
        .read_resources                 = pci_dev_read_resources,
        .set_resources                  = pci_dev_set_resources,
        .enable_resources               = pci_dev_enable_resources,
        .scan_bus                       = scan_generic_bus,
        .ops_spi_bus                    = &spi_bus_ops,
        .ops_pci                        = &pci_dev_ops_pci,
}

Definition at line 104 of file spi.c.