This patch adds support for reading an ONFI page parameter from a NAND
device supporting it. If this is the case, struct nand_chip onfi_version
member contains the supported ONFI version, 0 otherwise.
This allows NAND drivers past nand_scan_ident to set the best timings for the
NAND chip.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch sync with David's patch on Linux for handling nand_scan_ident.
commit 5e81e88a4c140586d9212999cea683bcd66a15c6
Author: David Woodhouse <David.Woodhouse@intel.com>
Date: Fri Feb 26 18:32:56 2010 +0000
mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
The logic to 'spread' mtd partitions needs to calculate the length in
the mtd device, including bad blocks.
This patch introduces a new function, mtd_get_len_incl_bad that can
return both the length including bad blocks and whether that length
was truncated on the device. This new function will be used by the
mtdparts spread command later in this series. The definition of the
function is #ifdef'd out in configurations that do not use the new
'mtdparts spread' command.
Signed-off-by: Ben Gardiner<bengardiner@nanometrics.ca>
CC: Scott Wood <scottwood@freescale.com>
Get rid of the several "#if 0" sections that were keeping around Linux
code that isn't relevant to U-Boot. Besides cluttering the code, these
sections make tracking upstream changes harder, rather than easier.
It's easy to discard obviously irrelevant diff hunks that patch rejects,
but it's not as easy to notice hunks that apply cleanly to the #if 0
section, but *are* relevant to U-Boot and require modification elsewhere.
Also remove suspend/resume, as this is not applicable to U-Boot. Removal
saves 232 bytes on powerpc.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>
the macros likely and unlikely were defined in include/linux/mtd/compat.h,
but used in code not related to MTD. moved the macro definitions to compiler.h
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
NANDs with page size of lesser than and equal to 2K are
reaching EOL. They are bing replaced with NANDs of
page size 4K and above.
To support this we have to extend the eccpos field
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This patch adds support for NANDs greater than 2 GB.
Patch is based on the MTD NAND driver in the kernel.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
fix the following compile warnings
warning: dereferencing type-punned pointer will break strict-aliasing rules
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch adds the new mode NAND_ECC_HW_OOB_FIRST in the nand code to
support 4-bit ECC on TI DaVinci devices with large page (up to 2K) NAND
chips. This ECC mode is similar to NAND_ECC_HW, with the exception of
read_page API that first reads the OOB area, reads the data in chunks,
feeds the ECC from OOB area to the ECC hw engine and perform any
correction on the data as per the ECC status reported by the engine.
This patch has been accepted by Andrew Morton and can be found at
http://userweb.kernel.org/~akpm/mmotm/broken-out/mtd-nand-add-new-ecc-mode-ecc_hw_oob_first.patch
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Legacy NAND had been scheduled for removal. Any boards that use this
were already not building in the previous release due to an #error.
The disk on chip code in common/cmd_doc.c relies on legacy NAND,
and it has also been removed. There is newer disk on chip code
in drivers/mtd/nand; someone with access to hardware and sufficient
time and motivation can try to get that working, but for now disk
on chip is not supported.
Signed-off-by: Scott Wood <scottwood@freescale.com>
This is needed for the MPC512x NAND driver (fsl_nfc_nand.c) which already
defines such a 4k plus 218 bytes ECC layout.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch brings the U-Boot MTD infrastructure in sync with the current
Linux MTD version (2.6.30-rc3). Biggest change is the 64bit device size
support and a resync of the mtdpart.c file which has seen multiple fixes
meanwhile.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Kyungmin Park <kmpark@infradead.org>
This patch adds concatenation support to the U-Boot MTD infrastructure.
By enabling CONFIG_MTD_CONCAT this MTD CFI wrapper will concatenate
all found NOR devices into one single MTD device. This can be used by
e.g by UBI to access a partition that spans over multiple NOR chips.
Signed-off-by: Stefan Roese <sr@denx.de>
The NAND flash on the TQM8548_BE modules requires a short delay after
running the UPM pattern like the MPC8360ERDK board does. The TQM8548_BE
requires a further short delay after writing out a buffer. Normally the
R/B pin should be checked, but it's not connected on the TQM8548_BE.
The corresponding Linux FSL UPM driver uses similar delay points at the
same locations. To manage these extra delays in a more general way, I
introduced the "wait_flags" field allowing the board-specific driver to
specify various types of extra delay.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
For the NAND chips on the TQM8548 modules, a special chip-select logic is
used. It uses dedicated address lines to be set via UPM machine address
register (mar). This patch adds such support to the FSL-UPM driver.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds support for multi-chip NAND devices to the FSL-UPM
driver. The "dev_ready" callback of the "struct fsl_upm_nand" is now
called with the argument "chip_nr" to allow testing the proper chip
select line. The NAND support of the MPC8360ERDK is updated as well.
No other boards are currently using the FSL UPM driver.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch renames NAND_MAX_CHIPS to CONFIG_SYS_NAND_MAX_CHIPS and
changes the default from 8 to 1 for the legacy and the new MTD
NAND layer. This allows to remove all NAND_MAX_CHIPS definitions
in the board config files because none of the boards use multi
chip support (NAND_MAX_CHIPS > 1) so far. The bamboo and the DU440
define
#define NAND_MAX_CHIPS CONFIG_SYS_MAX_NAND_DEVICE
but that's bogus and did not work anyhow.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
