From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- include/drivers/brcm/sf.h | 90 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 include/drivers/brcm/sf.h (limited to 'include/drivers/brcm/sf.h') diff --git a/include/drivers/brcm/sf.h b/include/drivers/brcm/sf.h new file mode 100644 index 0000000..c32cbeb --- /dev/null +++ b/include/drivers/brcm/sf.h @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2019-2020, Broadcom + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SF_H +#define SF_H + +#include +#include + +#ifdef SPI_DEBUG +#define SPI_DEBUG(fmt, ...) INFO(fmt, ##__VA_ARGS__) +#else +#define SPI_DEBUG(fmt, ...) +#endif + +#define SPI_FLASH_MAX_ID_LEN 6 + +#define CMD_WRSR 0x01 /* Write status register */ +#define CMD_PAGE_PROGRAM 0x02 +#define CMD_READ_NORMAL 0x03 +#define CMD_RDSR 0x05 +#define CMD_WRITE_ENABLE 0x06 +#define CMD_RDFSR 0x70 +#define CMD_READ_ID 0x9f +#define CMD_ERASE_4K 0x20 +#define CMD_ERASE_64K 0xd8 +#define ERASE_SIZE_64K (64 * 1024) + +/* Common status */ +#define STATUS_WIP BIT(0) + +struct spi_flash { + struct spi_slave *spi; + uint32_t size; + uint32_t page_size; + uint32_t sector_size; + uint32_t erase_size; + uint8_t erase_cmd; + uint8_t read_cmd; + uint8_t write_cmd; + uint8_t flags; +}; + +struct spi_flash_info { + const char *name; + + /* + * This array stores the ID bytes. + * The first three bytes are the JEDIC ID. + * JEDEC ID zero means "no ID" (mostly older chips). + */ + uint8_t id[SPI_FLASH_MAX_ID_LEN]; + uint8_t id_len; + + uint32_t sector_size; + uint32_t n_sectors; + uint16_t page_size; + + uint8_t flags; +}; + +/* Enum list - Full read commands */ +enum spi_read_cmds { + ARRAY_SLOW = BIT(0), + ARRAY_FAST = BIT(1), + DUAL_OUTPUT_FAST = BIT(2), + DUAL_IO_FAST = BIT(3), + QUAD_OUTPUT_FAST = BIT(4), + QUAD_IO_FAST = BIT(5), +}; + +/* sf param flags */ +enum spi_param_flag { + SECT_4K = BIT(0), + SECT_32K = BIT(1), + E_FSR = BIT(2), + SST_BP = BIT(3), + SST_WP = BIT(4), + WR_QPP = BIT(5), +}; + +int spi_flash_cmd_read(const uint8_t *cmd, size_t cmd_len, + void *data, size_t data_len); +int spi_flash_cmd(uint8_t cmd, void *response, size_t len); +int spi_flash_cmd_write(const uint8_t *cmd, size_t cmd_len, + const void *data, size_t data_len); +#endif -- cgit v1.2.3