fch_spi.c File Reference

#include <amdblocks/chip.h>
#include <amdblocks/lpc.h>
#include <amdblocks/psp_efs.h>
#include <amdblocks/spi.h>
#include <arch/mmio.h>
#include <console/console.h>
#include <soc/iomap.h>
#include <soc/lpc.h>
#include <stdint.h>

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Functions
void	show_spi_speeds_and_modes (void)
void __weak	mainboard_spi_fast_speed_override (uint8_t *fast_speed)
static uint8_t	lower_speed (uint8_t speed1, uint8_t speed2)
static void	fch_spi_set_spi100 (uint8_t norm, uint8_t fast, uint8_t alt, uint8_t tpm)
static void	fch_spi_configure_4dw_burst (void)
static void	fch_spi_set_read_mode (u32 mode)
void	fch_spi_config_modes (void)
void	fch_spi_early_init (void)

Variables
static const char *	spi_speed_str [8]
static const char *	read_mode_str [8]

Function Documentation

fch_spi_config_modes()

void fch_spi_config_modes

(

void

)

Definition at line 99 of file fch_spi.c.

References fch_spi_set_read_mode(), fch_spi_set_spi100(), lower_speed(), mainboard_spi_fast_speed_override(), and read_efs_spi_settings().

Referenced by fch_spi_early_init(), and verstage_soc_spi_init().

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fch_spi_configure_4dw_burst()

static void fch_spi_configure_4dw_burst ( void  )

static

Definition at line 80 of file fch_spi.c.

References CONFIG, SPI100_HOST_PREF_CONFIG, SPI_RD4DW_EN_HOST, spi_read16(), spi_write16(), and val.

Referenced by fch_spi_early_init().

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fch_spi_early_init()

void fch_spi_early_init

(

void

)

Definition at line 122 of file fch_spi.c.

References fch_spi_config_modes(), fch_spi_configure_4dw_burst(), lpc_enable_spi_prefetch(), lpc_enable_spi_rom(), and SPI_ROM_ENABLE.

Referenced by bootblock_fch_early_init(), and fch_pre_init().

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fch_spi_set_read_mode()

static void fch_spi_set_read_mode ( u32  mode )

static

Definition at line 92 of file fch_spi.c.

References SPI_CNTRL0, spi_read32(), SPI_READ_MODE, SPI_READ_MODE_MASK, spi_write32(), and val.

Referenced by fch_spi_config_modes().

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fch_spi_set_spi100()

static void fch_spi_set_spi100 ( uint8_t  norm, uint8_t  fast, uint8_t  alt, uint8_t  tpm  )

static

Definition at line 74 of file fch_spi.c.

References SPI100_ENABLE, SPI100_SPEED_CONFIG, spi_read16(), SPI_SPEED_CFG, SPI_USE_SPI100, and spi_write16().

Referenced by fch_spi_config_modes().

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lower_speed()

static uint8_t lower_speed ( uint8_t  speed1, uint8_t  speed2  )

static

Definition at line 58 of file fch_spi.c.

References ARRAY_SIZE, SPI_SPEED_100M, SPI_SPEED_16M, SPI_SPEED_22M, SPI_SPEED_33M, SPI_SPEED_66M, and SPI_SPEED_800K.

Referenced by fch_spi_config_modes().

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mainboard_spi_fast_speed_override()

void __weak mainboard_spi_fast_speed_override

(

uint8_t *

fast_speed

)

Definition at line 53 of file fch_spi.c.

Referenced by fch_spi_config_modes().

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show_spi_speeds_and_modes()

void show_spi_speeds_and_modes

(

void

)

Definition at line 35 of file fch_spi.c.

References BIOS_DEBUG, DECODE_SPI_ALT_SPEED, DECODE_SPI_FAST_SPEED, DECODE_SPI_NORMAL_SPEED, DECODE_SPI_READ_MODE, DECODE_SPI_TPM_SPEED, printk, read_mode_str, SPI100_ENABLE, SPI100_SPEED_CONFIG, SPI_CNTRL0, spi_read16(), spi_read32(), spi_speed_str, and SPI_USE_SPI100.

Referenced by bootblock_fch_init(), fch_early_init(), and verstage_soc_spi_init().

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Variable Documentation

read_mode_str

const char* read_mode_str[8]

static

Initial value:

= {
        "Normal Read (up to 33M)",
        "Reserved",
        "Dual IO (1-1-2)",
        "Quad IO (1-1-4)",
        "Dual IO (1-2-2)",
        "Quad IO (1-4-4)",
        "Normal Read (up to 66M)",
        "Fast Read"
}

Definition at line 24 of file fch_spi.c.

Referenced by show_spi_speeds_and_modes().

spi_speed_str

const char* spi_speed_str[8]

static

Initial value:

= {
        "66.66 Mhz",
        "33.33 MHz",
        "22.22 MHz",
        "16.66 MHz",
        "100 MHz",
        "800 KHz",
        "Invalid",
        "Invalid"
}

Definition at line 13 of file fch_spi.c.

Referenced by show_spi_speeds_and_modes().