sandbox: config: Enable cros_ec emulation and related items

[karo-tx-uboot.git] / include / spi_flash.h

diff --git a/include/spi_flash.h b/include/spi_flash.h
index 1ff5af4dfcb446caf6f549f2c62b365090023c24..1a112862240c966668199988ddab739277afd5f8 100644 (file)
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -9,7 +9,7 @@
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation. 
+ * version 2 as published by the Free Software Foundation.
  */
 
 #ifndef _SPI_FLASH_H_
@@ -19,11 +19,60 @@
 #include <linux/types.h>
 #include <linux/compiler.h>
 
+/* 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 */
+enum spi_read_cmds {
+       ARRAY_SLOW = 1 << 0,
+       DUAL_OUTPUT_FAST = 1 << 1,
+       DUAL_IO_FAST = 1 << 2,
+       QUAD_OUTPUT_FAST = 1 << 3,
+       QUAD_IO_FAST = 1 << 4,
+};
+#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
+ *
+ * @name:              Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO])
+ * @jedec:             Device jedec ID (0x[1byte_manuf_id][2byte_dev_id])
+ * @ext_jedec:         Device ext_jedec ID
+ * @sector_size:       Sector size of this device
+ * @nr_sectors:                No.of sectors on this device
+ * @e_rd_cmd:          Enum list for read commands
+ * @flags:             Important param, for flash specific behaviour
+ */
+struct spi_flash_params {
+       const char *name;
+       u32 jedec;
+       u16 ext_jedec;
+       u32 sector_size;
+       u32 nr_sectors;
+       u8 e_rd_cmd;
+       u16 flags;
+};
+
+extern const struct spi_flash_params spi_flash_params_table[];
+
 /**
  * struct spi_flash - SPI flash 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
@@ -33,18 +82,23 @@
  * @bank_curr:         Current flash bank
  * @poll_cmd:          Poll cmd - for flash erase/program
  * @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
- * @write:             Flash write ops: Write len bytes from buf into offeset
+ * @write:             Flash write ops: Write len bytes from buf into offset
  *                     Supported cmds: Page Program
  * @erase:             Flash erase ops: Erase len bytes from offset
  *                     Supported cmds: Sector erase 4K, 32K, 64K
- * return 0 - Sucess, 1 - Failure
+ * return 0 - Success, 1 - Failure
  */
 struct spi_flash {
        struct spi_slave *spi;
        const char *name;
+       u8 dual_flash;
+       u8 shift;
 
        u32 size;
        u32 page_size;
@@ -57,6 +111,9 @@ struct spi_flash {
 #endif
        u8 poll_cmd;
        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);
@@ -67,6 +124,19 @@ struct spi_flash {
 
 struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
                unsigned int max_hz, unsigned int spi_mode);
+
+/**
+ * Set up a new SPI flash from an fdt node
+ *
+ * @param blob         Device tree blob
+ * @param slave_node   Pointer to this SPI slave node in the device tree
+ * @param spi_node     Cached pointer to the SPI interface this node belongs
+ *                     to
+ * @return 0 if ok, -1 on error
+ */
+struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node,
+                                     int spi_node);
+
 void spi_flash_free(struct spi_flash *flash);
 
 static inline int spi_flash_read(struct spi_flash *flash, u32 offset,