Rather than scanning on boot, scan upon the first attempt to check the
badness of a block.  This speeds up boot when not using NAND, and reduces
the likelihood of needing to reflash via JTAG if NAND becomes
nonfunctional.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

Implement block-skipping read/write, based on a patch from
Morten Ebbell Hestens <morten.hestnes@tandberg.com>.

Signed-off-by: Morten Ebbell Hestnes <morten.hestnes@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

Use of the non-skipping versions was almost always (if not always)
an error, and no valid use case has been identified.

Signed-off-by: Scott Wood <scottwood@freescale.com>

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

The hardware has separate registers for block and page-within-block,
but the division between the two has no apparent relation to the
actual erase block size of the NAND chip.

Signed-off-by: Scott Wood <scottwood@freescale.com>

Using current driver elbc sometimes hangs during nand write. Reading back
last byte helps though (thanks to Scott Wood for the idea).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

This is a driver for the Flash Control Machine of the enhanched Local Bus
Controller found on some Freescale chips (such as the mpc8313 and the
mpc8379).

Signed-off-by: Scott Wood <scottwood@freescale.com>

Some hardware, such as the enhanced local bus controller used on some
mpc83xx chips, does ecc transparently when reading and writing data, rather
than providing a generic calculate/correct mechanism that can be exported to
the nand subsystem.

The subsystem should not BUG() when calculate, correct, or hwctl are
missing, if the methods that call them have been overridden.

Signed-off-by: Scott Wood <scottwood@freescale.com>

This patch turns off printing of bad blocks per default upon bootup.
This can always be shown via the "nand bad" command later.

Signed-off-by: Stefan Roese <sr@denx.de>

Here comes a trivial patch to cpu/arm926ejs/davinci/nand.c. Unfortunately I
don't have hardware handy so I can not test it at the moment but changes are
rather trivial so it should work. It would be nice if somebody with a
hardware checked it anyways.

Signed-off-by: Sergey Kubushyn <ksi@koi8.net>

Signed-off-by: Stefan Roese <sr@denx.de>

This patch changes the NAND booting driver nand_spl/nand_boot.c to match
the new infrastructure from the updated NAND subsystem. This NAND
subsystem was recently synced again with the Linux 2.6.22 MTD/NAND
subsystem.

Signed-off-by: Stefan Roese <sr@denx.de>

This patch changes the 4xx NAND driver ndfc.c to match the new
infrastructure from the updated NAND subsystem. This NAND
subsystem was recently synced again with the Linux 2.6.22 MTD/NAND
subsystem.

Tested successfully on AMCC Sequoia and Bamboo.

Signed-off-by: Stefan Roese <sr@denx.de>

This patch changes nand_wait_ready() to not just call nand_wait(),
since this will send a new command to the NAND chip. We just want to
wait for the chip to become ready here.

Signed-off-by: Stefan Roese <sr@denx.de>

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

Signed-off-by: William Juul <william.juul@tandberg.com>

Signed-off-by: William Juul <william.juul@tandberg.com>

Signed-off-by: William Juul <william.juul@tandberg.com>

To use YAFFS2 define CONFIG_YAFFS2

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

Direct import of yaffs as a tarball as of 20071113 from their public
CVS-web at http://www.aleph1.co.uk/cgi-bin/viewcvs.cgi/yaffs2/



The code can also be imported on the command line with:
export CVSROOT=:pserver:anonymous@cvs.aleph1.co.uk:/home/aleph1/cvs cvs logon
(Hit return when asked for a password)
cvs checkout yaffs2

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Stig Olsen <stig.olsen@tandberg.com>

Changes requested by maintainer Stefan Roese after
posting patch to U-boot mailing list.

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

 - Fixing leading white spaces
 - Fixing indentation where 4 spaces are used instead of tab
 - Removing C++ comments (//), wherever I introduced them

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

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.

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@tandberg.com>
Signed-off-by: Stig Olsen <stig.olsen@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

Signed-off-by: Wolfgang Denk <wd@denx.de>

Signed-off-by: Wolfgang Denk <wd@denx.de>

Signed-off-by: Wolfgang Denk <wd@denx.de>

Signed-off-by: Wolfgang Denk <wd@denx.de>

Use CONFIG_NUM_CPUS to match existing define used by 86xx.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>

The autostart revert caused a bit of duplicated code as well as
code that was using images->autostart that needs to get removed so
we can build again.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

When building the 8544DS board we get this error:

In file included from r8a66597-hcd.c:22:
u-boot/include/usb.h:190:2: error: #error USB Lowlevel not defined
make[1]: *** [r8a66597-hcd.o] Error 1

The cleanest fix is to only build r8a66597-hcd.c if CONFIG_USB_R8A66597_HCD
is set.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

This is needed because we will be possibly be locating
devices at physical addresses above 32bits, and the asm
preprocessing does not appear to deal with ULL constants
properly. We now call write_bat in lib_ppc/bat_rw.c.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>

Perform sync/isync as required by the architecture.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>

Correct the mx31_gpio_mux() function to allow changing all i.MX31 IOMUX
contacts instead of only the first 256 ones as is the case prior to
this patch.

Add missing MUX_* macros and update board files to use the new macros.

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>

Correct the names of some IOMUX macros.

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>

The block and page parameters of onenand_verify_page() are not used. This causes a compiler error when CONFIG_MTD_ONENAND_VERIFY_WRITE is enabled.

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>