Merge git://git.infradead.org/users/dwmw2/spectra-2.6 into work

drivers/staging/Kconfig

@@ -97,6 +97,8 @@ source "drivers/staging/octeon/Kconfig"
 
 source "drivers/staging/serqt_usb2/Kconfig"
 
+source "drivers/staging/spectra/Kconfig"
+
 source "drivers/staging/quatech_usb2/Kconfig"
 
 source "drivers/staging/vt6655/Kconfig"

drivers/staging/Makefile

@@ -22,6 +22,7 @@ obj-$(CONFIG_R8187SE)		+= rtl8187se/
 obj-$(CONFIG_RTL8192SU)		+= rtl8192su/
 obj-$(CONFIG_RTL8192U)		+= rtl8192u/
 obj-$(CONFIG_RTL8192E)		+= rtl8192e/
+obj-$(CONFIG_SPECTRA)		+= spectra/
 obj-$(CONFIG_TRANZPORT)		+= frontier/
 obj-$(CONFIG_DREAM)		+= dream/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/

drivers/staging/spectra/Kconfig

@@ -0,0 +1,40 @@
+
+menuconfig SPECTRA
+	tristate "Denali Spectra Flash Translation Layer"
+	depends on BLOCK
+	default n
+	---help---
+	  Enable the FTL pseudo-filesystem used with the NAND Flash
+	  controller on Intel Moorestown Platform to pretend to be a disk
+
+choice
+	prompt "Compile for"
+	depends on SPECTRA
+	default SPECTRA_MRST_HW
+
+config SPECTRA_MRST_HW
+	bool "Moorestown hardware mode"
+	help
+	  Driver communicates with the Moorestown hardware's register interface.
+	  in DMA mode.
+
+config SPECTRA_MTD
+	bool "Linux MTD mode"
+	depends on MTD
+	help
+	  Driver communicates with the kernel MTD subsystem instead of its own
+	  built-in hardware driver.
+
+config SPECTRA_EMU
+	bool "RAM emulator testing"
+	help
+	  Driver emulates Flash on a RAM buffer and / or disk file.  Useful to test the behavior of FTL layer.
+
+endchoice
+
+config SPECTRA_MRST_HW_DMA
+       bool
+       default n
+       depends on SPECTRA_MRST_HW
+       help
+         Use DMA for native hardware interface.

drivers/staging/spectra/Makefile

@@ -0,0 +1,11 @@
+#
+# Makefile of Intel Moorestown NAND controller driver
+#
+
+obj-$(CONFIG_SPECTRA) += spectra.o
+spectra-y := ffsport.o flash.o lld.o
+spectra-$(CONFIG_SPECTRA_MRST_HW) += lld_nand.o 
+spectra-$(CONFIG_SPECTRA_MRST_HW_DMA) += lld_cdma.o
+spectra-$(CONFIG_SPECTRA_EMU) += lld_emu.o
+spectra-$(CONFIG_SPECTRA_MTD) += lld_mtd.o
+

drivers/staging/spectra/README

@@ -0,0 +1,29 @@
+This is a driver for NAND controller of Intel Moorestown platform.
+
+This driver is a standalone linux block device driver, it acts as if it's a normal hard disk.
+It includes three layer:
+	block layer interface - file ffsport.c
+	Flash Translation Layer (FTL) - file flash.c (implement the NAND flash Translation Layer, includs address mapping, garbage collection, wear-leveling and so on)
+	Low level layer - file lld_nand.c/lld_cdma.c/lld_emu.c (which implements actual controller hardware registers access)
+
+This driver can be build as modules or build-in.
+
+Dependency:
+This driver has dependency on IA Firmware of Intel Moorestown platform.
+It need the IA Firmware to create the block table for the first time.
+And to validate this driver code without IA Firmware, you can change the
+macro AUTO_FORMAT_FLASH from 0 to 1 in file spectraswconfig.h. Thus the
+driver will erase the whole nand flash and create a new block table.
+
+TODO:
+	- Enable Command DMA feature support
+	- lower the memory footprint
+	- Remove most of the unnecessary global variables
+	- Change all the upcase variable / functions name to lowercase
+	- Some other misc bugs
+
+Please send patches to:
+	Greg Kroah-Hartman <gregkh@suse.de>
+
+And Cc to: Gao Yunpeng <yunpeng.gao@intel.com>
+

drivers/staging/spectra/ffsdefs.h

@@ -0,0 +1,58 @@
+/*
+ * NAND Flash Controller Device Driver
+ * Copyright (c) 2009, Intel Corporation and its suppliers.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef _FFSDEFS_
+#define _FFSDEFS_
+
+#define CLEAR 0			/*use this to clear a field instead of "fail"*/
+#define SET   1			/*use this to set a field instead of "pass"*/
+#define FAIL 1			/*failed flag*/
+#define PASS 0			/*success flag*/
+#define ERR -1			/*error flag*/
+
+#define   ERASE_CMD             10
+#define   WRITE_MAIN_CMD        11
+#define   READ_MAIN_CMD         12
+#define   WRITE_SPARE_CMD       13
+#define   READ_SPARE_CMD        14
+#define   WRITE_MAIN_SPARE_CMD  15
+#define   READ_MAIN_SPARE_CMD   16
+#define   MEMCOPY_CMD           17
+#define   DUMMY_CMD             99
+
+#define     EVENT_PASS                                  0x00
+#define     EVENT_CORRECTABLE_DATA_ERROR_FIXED         0x01
+#define     EVENT_UNCORRECTABLE_DATA_ERROR              0x02
+#define     EVENT_TIME_OUT                              0x03
+#define     EVENT_PROGRAM_FAILURE                       0x04
+#define     EVENT_ERASE_FAILURE                         0x05
+#define     EVENT_MEMCOPY_FAILURE                       0x06
+#define     EVENT_FAIL                                  0x07
+
+#define     EVENT_NONE                                  0x22
+#define     EVENT_DMA_CMD_COMP                          0x77
+#define     EVENT_ECC_TRANSACTION_DONE                  0x88
+#define     EVENT_DMA_CMD_FAIL                          0x99
+
+#define CMD_PASS        0
+#define CMD_FAIL        1
+#define CMD_ABORT       2
+#define CMD_NOT_DONE    3
+
+#endif /* _FFSDEFS_ */