This driver is ported from kernel and can handle a series of spi nor
flash including m25pxx, m45pxx, w25xxx, cat25xxx, sst25vf0xxx,
sst25wfxxx, s25xxx, mx25xxx, at25xxx, at26xxx, en25xxx, xxxs33b.
Signed-off-by: Terry Lv r65...@freescale.com
---
drivers/mtd/spi/Makefile |1 +
drivers/mtd/spi/m25p80.c | 896 ++
drivers/mtd/spi/spi_flash.c | 10 +
drivers/mtd/spi/spi_flash_internal.h |1 +
4 files changed, 908 insertions(+), 0 deletions(-)
create mode 100644 drivers/mtd/spi/m25p80.c
diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile
index 57112af..1621a61 100644
--- a/drivers/mtd/spi/Makefile
+++ b/drivers/mtd/spi/Makefile
@@ -28,6 +28,7 @@ LIB := $(obj)libspi_flash.o
COBJS-$(CONFIG_SPI_FLASH) += spi_flash.o
COBJS-$(CONFIG_SPI_FLASH_ATMEL)+= atmel.o
COBJS-$(CONFIG_SPI_FLASH_EON) += eon.o
+COBJS-$(CONFIG_SPI_FLASH_M25P80) += m25p80.o
COBJS-$(CONFIG_SPI_FLASH_MACRONIX) += macronix.o
COBJS-$(CONFIG_SPI_FLASH_SPANSION) += spansion.o
COBJS-$(CONFIG_SPI_FLASH_SST) += sst.o
diff --git a/drivers/mtd/spi/m25p80.c b/drivers/mtd/spi/m25p80.c
new file mode 100644
index 000..1d87793
--- /dev/null
+++ b/drivers/mtd/spi/m25p80.c
@@ -0,0 +1,896 @@
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+/*
+ * MTD SPI driver for ST M25Pxx (and similar) serial flash chips
+ *
+ * Author: Mike Lavender, m...@steroidmicros.com
+ *
+ * Copyright (c) 2005, Intec Automation Inc.
+ *
+ * Some parts are based on lart.c by Abraham Van Der Merwe
+ *
+ * Cleaned up and generalized based on mtd_dataflash.c
+ *
+ * This code 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.
+ *
+ */
+
+#include common.h
+#include spi.h
+#include spi_flash.h
+#include asm/errno.h
+#include linux/types.h
+#include malloc.h
+
+#include spi_flash_internal.h
+
+/* CFI */
+#define CFI_MFR_ANY 0x
+#define CFI_ID_ANY 0x
+#define CFI_MFR_CONTINUATION0x007F
+
+#define CFI_MFR_AMD 0x0001
+#define CFI_MFR_AMIC0x0037
+#define CFI_MFR_ATMEL 0x001F
+#define CFI_MFR_EON 0x001C
+#define CFI_MFR_FUJITSU 0x0004
+#define CFI_MFR_HYUNDAI 0x00AD
+#define CFI_MFR_INTEL 0x0089
+#define CFI_MFR_MACRONIX0x00C2
+#define CFI_MFR_NEC 0x0010
+#define CFI_MFR_PMC 0x009D
+#define CFI_MFR_SAMSUNG 0x00EC
+#define CFI_MFR_SHARP 0x00B0
+#define CFI_MFR_SST 0x00BF
+#define CFI_MFR_ST 0x0020 /* STMicroelectronics */
+#define CFI_MFR_TOSHIBA 0x0098
+#define CFI_MFR_WINBOND 0x00DA
+
+/* Flash opcodes. */
+#defineOPCODE_WREN 0x06/* Write enable */
+#defineOPCODE_RDSR 0x05/* Read status register */
+#defineOPCODE_WRSR 0x01/* Write status register 1 byte
*/
+#defineOPCODE_NORM_READ0x03/* Read data bytes (low
frequency) */
+#defineOPCODE_FAST_READ0x0b/* Read data bytes (high
frequency) */
+#defineOPCODE_PP 0x02/* Page program (up to 256
bytes) */
+#defineOPCODE_BE_4K0x20/* Erase 4KiB block */
+#defineOPCODE_BE_32K 0x52/* Erase 32KiB block */
+#defineOPCODE_CHIP_ERASE 0xc7/* Erase whole flash chip */
+#defineOPCODE_SE 0xd8/* Sector erase (usually 64KiB)
*/
+#defineOPCODE_RDID 0x9f/* Read JEDEC ID */
+
+/* Used for SST flashes only. */
+#defineOPCODE_BP 0x02/* Byte program */
+#defineOPCODE_WRDI 0x04/* Write disable */
+#defineOPCODE_AAI_WP 0xad/* Auto address increment word
program */
+
+/* Used for Macronix flashes only. */
+#defineOPCODE_EN4B 0xb7/* Enter 4-byte mode */
+#defineOPCODE_EX4B 0xe9/* Exit 4-byte mode */
+
+/* Used for Spansion flashes only. */
+#define
