#include <console/console.h>
#include <commonlib/helpers.h>
#include <spi_flash.h>
#include <spi-generic.h>
#include "spi_flash_internal.h"

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Macros
#define	CMD_SST_WREN 0x06 /* Write Enable */

#define	CMD_SST_WRDI 0x04 /* Write Disable */

#define	CMD_SST_RDSR 0x05 /* Read Status Register */

#define	CMD_SST_WRSR 0x01 /* Write Status Register */

#define	CMD_SST_EWSR 0x50 /* Enable Write Status Register */

#define	CMD_SST_READ 0x03 /* Read Data Bytes */

#define	CMD_SST_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */

#define	CMD_SST_BP 0x02 /* Byte Program */

#define	CMD_SST_PP 0x02 /* Page Program */

#define	CMD_SST_AAI_WP 0xAD /* Auto Address Increment Word Program */

#define	CMD_SST_SE 0x20 /* Sector Erase */

#define	SST_SR_WIP (1 << 0) /* Write-in-Progress */

#define	SST_SR_WEL (1 << 1) /* Write enable */

#define	SST_SR_BP0 (1 << 2) /* Block Protection 0 */

#define	SST_SR_BP1 (1 << 3) /* Block Protection 1 */

#define	SST_SR_BP2 (1 << 4) /* Block Protection 2 */

#define	SST_SR_AAI (1 << 6) /* Addressing mode */

#define	SST_SR_BPL (1 << 7) /* BP bits lock */

Functions
static int	sst_enable_writing (const struct spi_flash *flash)

static int	sst_enable_writing_status (const struct spi_flash *flash)

static int	sst_disable_writing (const struct spi_flash *flash)

static int	sst_byte_write (const struct spi_flash flash, u32 offset, const void buf)

static int	sst_write_ai (const struct spi_flash flash, u32 offset, size_t len, const void buf)

static int	sst_unlock (const struct spi_flash *flash)

Variables
static const struct spi_flash_part_id	flash_table_ai []

static const struct spi_flash_part_id	flash_table_pp256 []

static const struct spi_flash_ops_descriptor	descai

const struct spi_flash_vendor_info	spi_flash_sst_ai_vi

const struct spi_flash_vendor_info	spi_flash_sst_vi

Macro Definition Documentation

◆ CMD_SST_AAI_WP

#define CMD_SST_AAI_WP 0xAD /* Auto Address Increment Word Program */

Definition at line 23 of file sst.c.

◆ CMD_SST_BP

#define CMD_SST_BP 0x02 /* Byte Program */

Definition at line 21 of file sst.c.

◆ CMD_SST_EWSR

#define CMD_SST_EWSR 0x50 /* Enable Write Status Register */

Definition at line 18 of file sst.c.

◆ CMD_SST_FAST_READ

#define CMD_SST_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */

Definition at line 20 of file sst.c.

◆ CMD_SST_PP

#define CMD_SST_PP 0x02 /* Page Program */

Definition at line 22 of file sst.c.

◆ CMD_SST_RDSR

#define CMD_SST_RDSR 0x05 /* Read Status Register */

Definition at line 16 of file sst.c.

◆ CMD_SST_READ

#define CMD_SST_READ 0x03 /* Read Data Bytes */

Definition at line 19 of file sst.c.

◆ CMD_SST_SE

#define CMD_SST_SE 0x20 /* Sector Erase */

Definition at line 24 of file sst.c.

◆ CMD_SST_WRDI

#define CMD_SST_WRDI 0x04 /* Write Disable */

Definition at line 15 of file sst.c.

◆ CMD_SST_WREN

#define CMD_SST_WREN 0x06 /* Write Enable */

Definition at line 14 of file sst.c.

◆ CMD_SST_WRSR

#define CMD_SST_WRSR 0x01 /* Write Status Register */

Definition at line 17 of file sst.c.

◆ SST_SR_AAI

#define SST_SR_AAI (1 << 6) /* Addressing mode */

Definition at line 31 of file sst.c.

◆ SST_SR_BP0

#define SST_SR_BP0 (1 << 2) /* Block Protection 0 */

Definition at line 28 of file sst.c.

◆ SST_SR_BP1

#define SST_SR_BP1 (1 << 3) /* Block Protection 1 */

Definition at line 29 of file sst.c.

◆ SST_SR_BP2

#define SST_SR_BP2 (1 << 4) /* Block Protection 2 */

Definition at line 30 of file sst.c.

◆ SST_SR_BPL

#define SST_SR_BPL (1 << 7) /* BP bits lock */

Definition at line 32 of file sst.c.

◆ SST_SR_WEL

#define SST_SR_WEL (1 << 1) /* Write enable */

Definition at line 27 of file sst.c.

◆ SST_SR_WIP

#define SST_SR_WIP (1 << 0) /* Write-in-Progress */

Definition at line 26 of file sst.c.

Function Documentation

◆ sst_byte_write()

static int sst_byte_write	(	const struct spi_flash *	flash,
		u32	offset,
		const void *	buf
	)

static

Definition at line 118 of file sst.c.

References BIOS_SPEW, buf, CMD_SST_BP, CMD_SST_RDSR, offset, printk, spi_flash::spi, spi_flash_cmd_wait_ready(), spi_flash_cmd_write(), SPI_FLASH_PROG_TIMEOUT_MS, spi_w8r8(), and sst_enable_writing().

Referenced by sst_write_ai().

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◆ sst_disable_writing()

static int sst_disable_writing ( const struct spi_flash * flash )

static

Definition at line 109 of file sst.c.

References BIOS_WARNING, CMD_SST_WRDI, NULL, printk, spi_flash::spi, and spi_flash_cmd().

Referenced by sst_write_ai().

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◆ sst_enable_writing()

static int sst_enable_writing ( const struct spi_flash * flash )

static

Definition at line 91 of file sst.c.

References BIOS_WARNING, CMD_SST_WREN, NULL, printk, spi_flash::spi, and spi_flash_cmd().

Referenced by sst_byte_write(), and sst_write_ai().

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◆ sst_enable_writing_status()

static int sst_enable_writing_status ( const struct spi_flash * flash )

static

Definition at line 100 of file sst.c.

References BIOS_WARNING, CMD_SST_EWSR, NULL, printk, spi_flash::spi, and spi_flash_cmd().

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◆ sst_unlock()

static int sst_unlock ( const struct spi_flash * flash )

static

Definition at line 209 of file sst.c.

◆ sst_write_ai()

static int sst_write_ai	(	const struct spi_flash *	flash,
		u32	offset,
		size_t	len,
		const void *	buf
	)

static

Definition at line 144 of file sst.c.

References BIOS_SPEW, BIOS_WARNING, buf, CMD_SST_AAI_WP, CMD_SST_RDSR, offset, printk, spi_flash::spi, spi_flash_cmd_wait_ready(), spi_flash_cmd_write(), SPI_FLASH_PROG_TIMEOUT_MS, spi_w8r8(), sst_byte_write(), sst_disable_writing(), and sst_enable_writing().

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Variable Documentation

◆ descai

const struct spi_flash_ops_descriptor descai

static

Initial value:

= {
        .erase_cmd = CMD_SST_SE,
        .status_cmd = CMD_SST_RDSR,
        .wren_cmd = CMD_SST_WREN,
        .ops = {
                .read = spi_flash_cmd_read,
                .write = sst_write_ai,
                .erase = spi_flash_cmd_erase,
                .status = spi_flash_cmd_status,
        },
}

Definition at line 209 of file sst.c.

◆ flash_table_ai

const struct spi_flash_part_id flash_table_ai[]

static

Definition at line 1 of file sst.c.

◆ flash_table_pp256

const struct spi_flash_part_id flash_table_pp256[]

static

Initial value:

= {
        {
                
                .id[0] = 0x4b,
                .nr_sectors_shift = 11,
        },
}

Definition at line 1 of file sst.c.

◆ spi_flash_sst_ai_vi

const struct spi_flash_vendor_info spi_flash_sst_ai_vi

Initial value:

= {
        .id = VENDOR_ID_SST,
        .sector_size_kib_shift = 2,
        .match_id_mask[0] = 0xff,
        .ids = flash_table_ai,
        .nr_part_ids = ARRAY_SIZE(flash_table_ai),
        .desc = &descai,
        .after_probe = sst_unlock,
}

Definition at line 209 of file sst.c.

◆ spi_flash_sst_vi

const struct spi_flash_vendor_info spi_flash_sst_vi

Initial value:

= {
        .id = VENDOR_ID_SST,
        .page_size_shift = 8,
        .sector_size_kib_shift = 2,
        .match_id_mask[0] = 0xff,
        .ids = flash_table_pp256,
        .nr_part_ids = ARRAY_SIZE(flash_table_pp256),
        .desc = &spi_flash_pp_0x20_sector_desc,
        .after_probe = sst_unlock,
}

Definition at line 209 of file sst.c.

Macros

Functions

Variables

Macro Definition Documentation

◆ CMD_SST_AAI_WP

◆ CMD_SST_BP

◆ CMD_SST_EWSR

◆ CMD_SST_FAST_READ

◆ CMD_SST_PP

◆ CMD_SST_RDSR

◆ CMD_SST_READ

◆ CMD_SST_SE

◆ CMD_SST_WRDI

◆ CMD_SST_WREN

◆ CMD_SST_WRSR

◆ SST_SR_AAI

◆ SST_SR_BP0

◆ SST_SR_BP1

◆ SST_SR_BP2

◆ SST_SR_BPL

◆ SST_SR_WEL

◆ SST_SR_WIP

Function Documentation

◆ sst_byte_write()

◆ sst_disable_writing()

◆ sst_enable_writing()

◆ sst_enable_writing_status()

◆ sst_unlock()

◆ sst_write_ai()

Variable Documentation

◆ descai

◆ flash_table_ai

◆ flash_table_pp256

◆ spi_flash_sst_ai_vi

◆ spi_flash_sst_vi