eeprom.h File Reference

#include <assert.h>
#include <soc/ramstage.h>
#include <types.h>

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Data Structures
union	eeprom_dimm_layout
struct	eeprom_dimm_layout::__packed
struct	eeprom_board_layout
struct	eeprom_board_settings
struct	eeprom_bmc_settings
struct	eeprom_layout

Macros
#define	HERMES_SERIAL_NUMBER_LENGTH   32
#define	READ_EEPROM(section_type, section_name, dest, opt_name)
#define	READ_EEPROM_FSP_M(dest, opt_name)   READ_EEPROM(FSPM_UPD, RawFSPMUPD, dest, opt_name)
#define	READ_EEPROM_FSP_S(dest, opt_name)   READ_EEPROM(FSPS_UPD, RawFSPSUPD, dest, opt_name)

Functions
	_Static_assert (sizeof(union eeprom_dimm_layout)==0x80, "union eeprom_dimm_layout has invalid size!")
	_Static_assert (sizeof(struct eeprom_board_layout)==(617+sizeof(uint32_t)), "struct eeprom_board_layout has invalid size!")
	_Static_assert (sizeof(struct eeprom_board_settings)==(11+sizeof(uint32_t)), "struct eeprom_board_settings has invalid size!")
	_Static_assert (sizeof(FSPM_UPD)<=0x600, "FSPM_UPD too big")
	_Static_assert (sizeof(FSPS_UPD)<=0xc00, "FSPS_UPD too big")
	_Static_assert (sizeof(struct eeprom_layout)==0x2000, "EEPROM layout size mismatch")
bool	eeprom_read_buffer (void *blob, size_t read_offset, size_t size)
int	check_signature (const size_t offset, const uint64_t signature)
struct eeprom_board_settings *	get_board_settings (void)
struct eeprom_bmc_settings *	get_bmc_settings (void)
uint8_t	get_bmc_hsi (void)
void	report_eeprom_error (const size_t off)
bool	write_board_settings (const struct eeprom_board_layout *new_layout)

Macro Definition Documentation

HERMES_SERIAL_NUMBER_LENGTH

#define HERMES_SERIAL_NUMBER_LENGTH   32

Definition at line 70 of file eeprom.h.

READ_EEPROM

#define READ_EEPROM	(		section_type,
			section_name,
			dest,
			opt_name
	)

Value:

        do {                                                                            \
                typeof(dest->opt_name) __tmp;                                           \
                size_t __off = offsetof(struct eeprom_layout, section_name);            \
                bool ret = eeprom_read_buffer(&__tmp,                                   \
                                        __off + offsetof(section_type, opt_name),       \
                                        sizeof(__tmp));                                 \
                if (ret) {                                                              \
                        report_eeprom_error(__off + offsetof(section_type, opt_name));  \
                } else {                                                                \
                        dest->opt_name = __tmp;                                         \
                }                                                                       \
        } while (0)

Definition at line 111 of file eeprom.h.

READ_EEPROM_FSP_M

#define READ_EEPROM_FSP_M	(		dest,
			opt_name
	)		READ_EEPROM(FSPM_UPD, RawFSPMUPD, dest, opt_name)

Definition at line 125 of file eeprom.h.

READ_EEPROM_FSP_S

#define READ_EEPROM_FSP_S	(		dest,
			opt_name
	)		READ_EEPROM(FSPS_UPD, RawFSPSUPD, dest, opt_name)

Definition at line 126 of file eeprom.h.

Function Documentation

_Static_assert() [1/6]

_Static_assert	(	sizeof(FSPM_UPD)<=	0x600,
		"FSPM_UPD too big"
	)

_Static_assert() [2/6]

_Static_assert	(	sizeof(FSPS_UPD)<=	0xc00,
		"FSPS_UPD too big"
	)

_Static_assert() [3/6]

_Static_assert	(	sizeof(struct eeprom_board_layout)	= =(617+sizeof(uint32_t)),
		"struct eeprom_board_layout has invalid size!"
	)

_Static_assert() [4/6]

_Static_assert	(	sizeof(struct eeprom_board_settings)	= =(11+sizeof(uint32_t)),
		"struct eeprom_board_settings has invalid size!"
	)

_Static_assert() [5/6]

_Static_assert	(	sizeof(struct eeprom_layout)	= =0x2000,
		"EEPROM layout size mismatch"
	)

_Static_assert() [6/6]

_Static_assert	(	sizeof(union eeprom_dimm_layout)	= =0x80,
		"union eeprom_dimm_layout has invalid size!"
	)

check_signature()

int check_signature	(	const size_t	offset,
		const uint64_t	signature
	)

Definition at line 20 of file eeprom.c.

References ARRAY_SIZE, BIOS_DEBUG, eeprom_read_buffer(), offset, and printk.

Referenced by mainboard_early(), mainboard_memory_init_params(), and mainboard_silicon_init_params().

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eeprom_read_buffer()

bool eeprom_read_buffer	(	void *	blob,
		size_t	read_offset,
		size_t	size
	)

Definition at line 103 of file eeprom.c.

References BIOS_SPEW, do_smbus_process_call(), HOSTC, I2C_ADDR_EEPROM, I2C_EN, PCH_DEV_SMBUS, pci_read_config32(), pci_write_config32(), printk, SMBUS_IO_BASE, and swab16.

Referenced by check_signature(), get_bmc_settings(), get_board_settings_from_eeprom(), smbios_mainboard_serial_number(), smbios_system_serial_number(), and write_board_settings().

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get_bmc_hsi()

uint8_t get_bmc_hsi

(

void

)

Definition at line 91 of file eeprom.c.

References BIOS_DEBUG, get_bmc_settings(), eeprom_bmc_settings::hsi, printk, and s.

Referenced by mainboard_azalia_program_runtime_verbs(), and smbios_mainboard_version().

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get_bmc_settings()

struct eeprom_bmc_settings* get_bmc_settings

(

void

)

Definition at line 73 of file eeprom.c.

References BIOS_ERR, eeprom_read_buffer(), NULL, offsetof, and printk.

Referenced by get_bmc_hsi(), and mainboard_vbt_filename().

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get_board_settings()

struct eeprom_board_settings* get_board_settings

(

void

)

Definition at line 59 of file eeprom.c.

References board_cfg, get_board_settings_from_eeprom(), and NULL.

Referenced by mainboard_early(), mainboard_final(), mainboard_init(), and mainboard_r0x_configure_alc888().

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report_eeprom_error()

void report_eeprom_error

(

const size_t

off

)

Definition at line 135 of file eeprom.c.

References BIOS_ERR, and printk.

write_board_settings()

bool write_board_settings

(

const struct eeprom_board_layout *

new_layout

)

Definition at line 183 of file eeprom.c.

References assert, BIOS_DEBUG, BIOS_ERR, eeprom_read_buffer(), eeprom_write_byte(), offsetof, and printk.

Referenced by update_board_layout().

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