SPI nor drivers refactor

[fw/openocd] / src / flash / nor / spi.h

diff --git a/src/flash/nor/spi.h b/src/flash/nor/spi.h
new file mode 100644 (file)
index 0000000..319b00b
--- /dev/null
+++ b/src/flash/nor/spi.h
@@ -0,0 +1,58 @@
+/***************************************************************************
+ *   Copyright (C) 2012 by George Harris                                   *
+ *   george@luminairecoffee.com                                            *
+ *                                                                         *
+ *   Copyright (C) 2010 by Antonio Borneo                                  *
+ *   borneo.antonio@gmail.com                                              *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+/* data structure to maintain flash ids from different vendors */
+struct flash_device {
+       char *name;
+       uint8_t erase_cmd;
+       uint8_t chip_erase_cmd;
+       uint32_t device_id;
+       uint32_t pagesize;
+       unsigned long sectorsize;
+       unsigned long size_in_bytes;
+};
+
+#define FLASH_ID(n, es, ces, id, psize, ssize, size) \
+{                              \
+       .name = n,              \
+       .erase_cmd = es,        \
+       .chip_erase_cmd = ces,  \
+       .device_id = id,        \
+       .pagesize = psize,      \
+       .sectorsize = ssize,    \
+       .size_in_bytes = size   \
+}
+
+extern struct flash_device flash_devices[];
+
+/* fields in SPI flash status register */
+#define SPIFLASH_BSY_BIT               0x00000001 /* WIP Bit of SPI SR on SMI SR */
+#define SPIFLASH_WE_BIT                        0x00000002 /* WEL Bit of SPI SR on SMI SR */
+
+/* SPI Flash Commands */
+#define SPIFLASH_READ_ID               0x9F /* Read Flash Identification */
+#define SPIFLASH_READ_STATUS   0x05 /* Read Status Register */
+#define SPIFLASH_WRITE_ENABLE  0x06 /* Write Enable */
+#define SPIFLASH_PAGE_PROGRAM  0x02 /* Page Program */
+#define SPIFLASH_FAST_READ             0x0B /* Fast Read */
+#define SPIFLASH_READ                  0x03 /* Normal Read */