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Commit 178f16db authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

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

parents 013a468c bf46b9a9

drivers/staging/Kconfig

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@@ -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

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@@ -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

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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

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#

# 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

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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>