GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/*
+ * Copyright (c) 2019-2020, Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SF_H
+#define SF_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#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