The PMECC use BCH algorithm to correct error. In BCH algorithm, the
primitive polynomial value is GF(2^13) for 512-bytes sector size. And it is
GF(2^14) for 1024-bytes sector size.
This patch will choose correct degree of the remainders (13 or 14) for
different sector size.
Tested in AT91SAM9X5-EK with MLC nand flash.
More detail can be refered to section 5.4.1 of:
AT91SAM ARM-based Embedded MPU Application Note
<http://www.atmel.com/Images/doc11127.pdf>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
1. if CONFIG_SYS_NAND_ONFI_DETECTION is defined, driver will check NAND flash's
ecc minimum requirement in ONFI parameter.
a) if CONFIG_PMECC_CAP, CONFIG_PMECC_SECTOR_SIZE are defined. then use it.
Driver will display a WARNING if the values are different from ONFI
parameters.
b) if CONFIG_PMECC_CAP, CONFIG_PMECC_SECTOR_SIZE are not defined, then use
the value from ONFI parameters.
* If ONFI ECC parameters are in ONFI extended parameter page, since we
are not support it, so assume the minimum ecc requirement is 2 bits
in 512 bytes.
* For non-ONFI support nand flash, also assume the minimum ecc
requirement is 2 bits in 512 bytes.
2. if CONFIG_SYS_NAND_ONFI_DETECTION is not defined, just use CONFIG_PMECC_CAP
and CONFIG_PMECC_SECTOR_SIZE.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
In this way, the pmecc corraction capbility can change in run time.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Define the galois index table offset in chip head file. So user do not need
to set by himself. Driver will set it correctly according to sector_size.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Scott Wood <scottwood@freescale.com>
[rebased on master]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
This patch cleans up license header in these files:
board/freescale/p1022ds/spl.c
drivers/mmc/fsl_esdhc_spl.c
drivers/mtd/spi/fsl_espi_spl.c
Signed-off-by: York Sun <yorksun@freescale.com>
TPL is introduced in the patch "NAND: TPL : introduce the TPL
based on the SPL", here enable TPL for p1022ds nand boot.
Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
This patch introduces SPL to enable a loader stub that being loaded by
the code from the internal on-chip ROM. It loads the final uboot image
into DDR, then jump to it to begin execution.
The SPL's size is sizeable, the maximum size must not exceed the size of L2
SRAM. It initializes the DDR through SPD code, and copys final uboot image
to DDR. So there are two stage uboot images:
* spl_boot, 96KB size. The env variables are copied to L2 SRAM, so that
ddr spd code can get the interleaving mode setting in env. It loads
final uboot image from offset 96KB.
* final uboot image, size is variable depends on the functions enabled.
Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
Add support for SST25WF080 SPI flash.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
- line over 80 characters
- foo * bar -> foo *bar
- removed unnecessary for single statement blocks.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
While the flash_detect_legacy() of drivers/mtd/cfi_flash.c
feed unmap_physmem() with MAP_NOCACHE as 2nd parameter,
the do_spi_flash_read_write() of common/cmd_sf.c
feed unmap_physmem() with the length of the mapped buffer
as 2nd parameter.
It's apparently a bug, and I personally think the 2nd parameter
should be the length of the mapped buffer.
Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Albert Aribaud <albert.u.boot@aribaud.net>
CC: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
The driver triggered a BUG() in nand_base.c:3214/nand_scan_tail()
because the ecc.strength was not set in NAND_ECC_HW_SYNDROME ECC
mode.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Benoit Thebaudeau <benoit.thebaudeau@advansee.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Newer gcc versions warn about unused variables. This patch corrects a few of
those warnings that popped up in a build for the palmtreo680 board.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
before writing the received buffer to nand, erase the nand
sectors. If not doing this, nand write fails. See for
more info here:
http://lists.denx.de/pipermail/u-boot/2013-June/156361.html
Using the nand erase option "spread", maybe overwrite
blocks on, for example another mtd partition, if the
erasing range contains bad blocks.
So a limit option is added to nand_erase_opts()
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Move common flash write code into spi_flash_write_common().
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Acked-by: Simon Glass <sjg@chromium.org>
Flag status register polling is required for micron 512Mb flash
devices onwards, for performing erase/program operations.
Like polling for WIP(Write-In-Progress) bit in read status register,
spi_flash_cmd_wait_ready will poll for PEC(Program-Erase-Control)
bit in flag status register.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
There is no other call other than spi_flash_cmd_wait_ready(),
hence removed spi_flash_cmd_poll_bit and use the poll status code
spi_flash_cmd_wait_ready() itself.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Use the existing spi_flash_addr() for 3-byte addressing
cmd filling in write call.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Defined bank addr code on CONFIG_SPI_FLASH_BAR macro, to reduce the
size for existing boards which has < 16Mbytes SPI flashes.
It's upto user which has provision to use the bank addr code for
flashes which has > 16Mbytes.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch updated the spi_flash read func to support all
sizes of flashes using bank reg addr facility.
The same support has been added in below patch for erase/write
spi_flash functions:
"sf: Support all sizes of flashes using bank addr reg facility"
(sha1: c956f600cbb0943d0afe1004cdb503f4fcd8f415)
With these new updates on sf framework, the flashes which has < 16MB
are not effected as per as performance is concern and but the
u-boot.bin size incrased ~460 bytes.
sf update(for first 16MBytes), Changes before:
U-Boot> sf update 0x1000000 0x0 0x1000000
- N25Q256
16777216 bytes written, 0 bytes skipped in 199.72s, speed 86480 B/s
- W25Q128BV
16777216 bytes written, 0 bytes skipped in 351.739s, speed 48913 B/s
- S25FL256S_64K
16777216 bytes written, 0 bytes skipped in 65.659s, speed 262144 B/s
sf update(for first 16MBytes), Changes before:
U-Boot> sf update 0x1000000 0x0 0x1000000
- N25Q256
16777216 bytes written, 0 bytes skipped in 198.953s, speed 86480 B/s
- W25Q128BV
16777216 bytes written, 0 bytes skipped in 350.90s, speed 49200 B/s
- S25FL256S_64K
16777216 bytes written, 0 bytes skipped in 66.521s, speed 262144 B/s
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Updated the spi_flash framework to handle all sizes of flashes
using bank/extd addr reg facility
The current implementation in spi_flash supports 3-byte address mode
due to this up to 16Mbytes amount of flash is able to access for those
flashes which has an actual size of > 16MB.
As most of the flashes introduces a bank/extd address registers
for accessing the flashes in 16Mbytes of banks if the flash size
is > 16Mbytes, this new scheme will add the bank selection feature
for performing write/erase operations on all flashes.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Read the flash bank addr register to get the state of bank in
a perticular flash. and also bank write happens only when there is
a change in bank selection from user.
bank read only valid for flashes which has > 16Mbytes those are
opearted in 3-byte addr mode, each bank occupies 16Mytes.
Suppose if the flash has 64Mbytes size consists of 4 banks like
bank0, bank1, bank2 and bank3.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Bank/Extended addr commands are specific to particular
flash vendor so discover them based on the idocode0.
Assign the discovered bank commands to spi_flash members
so-that the bank read/write will use their specific operations.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This patch provides support to program a flash bank address
register.
extended/bank address register contains an information to access
the 4th byte addressing in 3-byte address mode.
reff' the spec for more details about bank addr register
in Page-63, Table 8.16
http://www.spansion.com/Support/Datasheets/S25FL128S_256S_00.pdf
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Use the exact names for W25Q 0x40XX ID's flash parts, as the same
sizes of flashes comes with different ID's. so-that the distinguishes
becomes easy with this change.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Corrected the name of S25FL128S 64K sector part SPI flash,
S25FL128S supported has been added in below commit
"sf: spansion: Add support for S25FL128S"
(sha1: 1bfb9f156a)
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Linker script is not able find start.o binary. So add its absolute path in
u-boot-spl.lds. This change is similar to u-boot-nand.lds
common/Makefile: Avoid compiling unnecssary files
fsl_ifc_spl.c : It is is responsible for reading u-boot binary from
NAND flash and copying into DDR. It also transfer control from NAND SPL
to u-boot image present in DDR.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
