Update MTD to that of Linux 2.6.22.1
A lot changed in the Linux MTD code, since it was last ported from Linux to U-Boot. This patch takes U-Boot NAND support to the level of Linux 2.6.22.1 and will enable support for very large NAND devices (4KB pages) and ease the compatibility between U-Boot and Linux filesystems and drivers.
This patch is tested on two custom boards with PPC and ARM processors running YAFFS in U-Boot and Linux using gcc-4.1.2 cross compilers.
MAKEALL ppc/arm has some issues: * DOC/OneNand/nand_spl is not building (I have not tried porting these parts, and since I do not have any HW and I am not familiar with this code/HW I think its best left to someone else.)
Except for the issues mentioned above, I have ported all drivers necessary to run MAKEALL ppc/arm without errors and warnings. Many drivers were trivial to port, but some were not so trivial. The following drivers must be examined carefully and maybe rewritten to some degree: cpu/ppc4xx/ndfc.c cpu/arm926ejs/davinci/nand.c board/delta/nand.c board/zylonite/nand.c
Signed-off-by: William Juul william.juul@datarespons.no Signed-off-by: Stig Olsen stig.olsen@tandberg.com ----
We have set up a git repository were you can pull the patch: http://git.tandberg.com/tandberg/u-boot.git
The master branch is tracking the official u-boot.git master branch. The branch mtd-update-1.3.0-rc3 is based on tag v1.3.0-rc3 The branch mtd-update will (eventually) continue to track u-boot updates and then spin off mtd-update-1.3.0 when v1.3.0 is released.
The file drivers/nand/nand_base.c contains the struct nand_oob_128 which is not (yet) part of Linux mtd. I will try to figure out if this implementation is valid by asking on the linux-mtd mailing list.
Best regards William Juul
Summary of changes between current head on branch mtd-update-1.3.0-rc3 and u-boot tag v1.3.0-rc3: board/bf537-stamp/nand.c | 43 +- board/dave/PPChameleonEVB/nand.c | 49 +- board/delta/nand.c | 41 +- board/esd/common/esd405ep_nand.c | 42 +- board/freescale/m5329evb/nand.c | 42 +- board/nc650/nand.c | 78 +- board/netstar/nand.c | 20 +- board/prodrive/alpr/nand.c | 59 +- board/prodrive/pdnb3/nand.c | 53 +- board/sc3/sc3nand.c | 44 +- board/tqm8272/tqm8272.c | 34 +- board/zylonite/nand.c | 39 +- common/cmd_doc.c | 5 +- common/cmd_nand.c | 1516 +++++++++--------- cpu/arm926ejs/davinci/nand.c | 41 +- cpu/ppc4xx/ndfc.c | 57 +- drivers/nand/diskonchip.c | 567 ++++---- drivers/nand/nand_base.c | 3449 ++++++++++++++++++++------------------ drivers/nand/nand_bbt.c | 552 ++++-- drivers/nand/nand_ecc.c | 21 +- drivers/nand/nand_ids.c | 169 ++- drivers/nand/nand_util.c | 359 +++-- include/common.h | 2 + include/linux/err.h | 45 + include/linux/mtd/blktrans.h | 81 + include/linux/mtd/compat.h | 7 +- include/linux/mtd/doc2000.h | 217 ++-- include/linux/mtd/inftl-user.h | 91 + include/linux/mtd/jffs2-user.h | 35 + include/linux/mtd/mtd-abi.h | 137 ++- include/linux/mtd/mtd.h | 154 ++- include/linux/mtd/nand.h | 450 ++++-- include/linux/mtd/nftl-user.h | 76 + include/linux/mtd/nftl.h | 93 +- include/linux/mtd/ubi-header.h | 360 ++++ include/linux/mtd/ubi-user.h | 161 ++ include/nand.h | 3 +- 37 files changed, 5314 insertions(+), 3878 deletions(-) create mode 100644 include/linux/err.h create mode 100644 include/linux/mtd/blktrans.h create mode 100644 include/linux/mtd/inftl-user.h create mode 100644 include/linux/mtd/jffs2-user.h create mode 100644 include/linux/mtd/nftl-user.h create mode 100644 include/linux/mtd/ubi-header.h create mode 100644 include/linux/mtd/ubi-user.h
------------------------------------------------- William Juul, Senior Development Engineer Data Respons Norge AS Sandviksveien 26 P.O. Box 489 NO-1323 Høvik, Norway
www.datarespons.no -------------------------------------------------