#ifndef _SPI_FLASH_H_
#define _SPI_FLASH_H_
-#include <dm.h> /* Because we dereference struct udevice here */
#include <linux/types.h>
#include <linux/mtd/spi-nor.h>
+struct udevice;
+
/* by default ENV use the same parameters than SF command */
#ifndef CONFIG_ENV_SPI_BUS
# define CONFIG_ENV_SPI_BUS CONFIG_SF_DEFAULT_BUS
int (*write)(struct udevice *dev, u32 offset, size_t len,
const void *buf);
int (*erase)(struct udevice *dev, u32 offset, size_t len);
+ /**
+ * get_sw_write_prot() - Check state of software write-protect feature
+ *
+ * SPI flash chips can lock a region of the flash defined by a
+ * 'protected area'. This function checks if this protected area is
+ * defined.
+ *
+ * @dev: SPI flash device
+ * @return 0 if no region is write-protected, 1 if a region is
+ * write-protected, -ENOSYS if the driver does not implement this,
+ * other -ve value on error
+ */
+ int (*get_sw_write_prot)(struct udevice *dev);
};
/* Access the serial operations for a device */
int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len);
/**
+ * spl_flash_get_sw_write_prot() - Check state of software write-protect feature
+ *
+ * SPI flash chips can lock a region of the flash defined by a
+ * 'protected area'. This function checks if this protected area is
+ * defined.
+ *
+ * @dev: SPI flash device
+ * @return 0 if no region is write-protected, 1 if a region is
+ * write-protected, -ENOSYS if the driver does not implement this,
+ * other -ve value on error
+ */
+int spl_flash_get_sw_write_prot(struct udevice *dev);
+
+/**
* spi_flash_std_probe() - Probe a SPI flash device
*
* This is the standard internal method for probing a SPI flash device to
unsigned int max_hz, unsigned int spi_mode);
/* Compatibility function - this is the old U-Boot API */
-void spi_flash_free(struct spi_flash *flash);
+static inline void spi_flash_free(struct spi_flash *flash)
+{
+}
static inline int spi_flash_read(struct spi_flash *flash, u32 offset,
size_t len, void *buf)