#include <linux/types.h>
#include <linux/compiler.h>
-/* No enum list for write commands only QPP */
+/* sf param flags */
+#define SECT_4K 1 << 1
+#define SECT_32K 1 << 2
+#define E_FSR 1 << 3
#define WR_QPP 1 << 4
/* Enum list - Full read commands */
#define RD_EXTN ARRAY_SLOW | DUAL_OUTPUT_FAST | DUAL_IO_FAST
#define RD_FULL RD_EXTN | QUAD_OUTPUT_FAST | QUAD_IO_FAST
+/* Dual SPI flash memories */
+enum spi_dual_flash {
+ SF_SINGLE_FLASH = 0,
+ SF_DUAL_STACKED_FLASH = 1 << 0,
+ SF_DUAL_PARALLEL_FLASH = 1 << 1,
+};
+
/**
* struct spi_flash_params - SPI/QSPI flash device params structure
*
*
* @spi: SPI slave
* @name: Name of SPI flash
+ * @dual_flash: Indicates dual flash memories - dual stacked, parallel
+ * @shift: Flash shift useful in dual parallel
* @size: Total flash size
* @page_size: Write (page) size
* @sector_size: Sector size
* @erase_cmd: Erase cmd 4K, 32K, 64K
* @read_cmd: Read cmd - Array Fast, Extn read and quad read.
* @write_cmd: Write cmd - page and quad program.
+ * @dummy_byte: Dummy cycles for read operation.
* @memory_map: Address of read-only SPI flash access
* @read: Flash read ops: Read len bytes at offset into buf
* Supported cmds: Fast Array Read
struct spi_flash {
struct spi_slave *spi;
const char *name;
+ u8 dual_flash;
+ u8 shift;
u32 size;
u32 page_size;
u8 erase_cmd;
u8 read_cmd;
u8 write_cmd;
+ u8 dummy_byte;
void *memory_map;
int (*read)(struct spi_flash *flash, u32 offset, size_t len, void *buf);