Commit Graph

3396 Commits

Author SHA1 Message Date
Marek Vasut
fa2afe0274 dm: sparc: net: Fixup greth compile warnings
greth.c: In function ‘greth_recv’:
greth.c:507:3: warning: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘unsigned int’ [-Wformat]
greth.c:507:3: warning: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘unsigned int’ [-Wformat]
greth.c:541:6: warning: pointer targets in assignment differ in signedness [-Wpointer-sign]
greth.c: In function ‘greth_initialize’:
greth.c:623:2: warning: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘struct greth_regs *’ [-Wformat]
greth.c:655:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘struct greth_regs *’ [-Wformat]
greth.c:684:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘struct greth_regs *’ [-Wformat]

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: u-boot-dm@lists.denx.de
2012-09-18 12:01:50 -07:00
Tom Rini
efa1f43b7d mxc nand: Fix warning on !MXC_NFC_V2_1
In board_nand_init() we only need the 'tmp' variable if MXC_NFC_V2_1 is
defined.

Signed-off-by: Tom Rini <trini@ti.com>
2012-09-18 09:24:22 -07:00
Tom Rini
c413a004ea Merge branch 'master' of git://git.denx.de/u-boot-nand-flash 2012-09-18 07:55:07 -07:00
Benoît Thébaudeau
9c60e75e05 mxc nand: Homogenize IP revisions with Linux
Use the same IP revisions as in Linux in order to make the comparison more
clear.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:51:45 -05:00
Benoît Thébaudeau
13927f0733 mtd mxc nand: Merge init functions
Merge mxc_setup_config1() into board_nand_init() in order to ease the addition
of i.MX5 support in the following patches.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:51:45 -05:00
Benoît Thébaudeau
7c28a1cfdf mtd mxc nand: Fix ECC state after read_page_raw_syndrome()
mxc_nand_read_page_raw_syndrome() should reenable ECC upon exit. This fixes ECC
errors left uncorrected after a call to this function.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:51:45 -05:00
Benoît Thébaudeau
0e499b07ef mtd mxc nand: Use _mxc_nand_enable_hwecc()
Use _mxc_nand_enable_hwecc() instead of duplicating its code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:51:45 -05:00
Benoît Thébaudeau
c1db8dd62b mxc nand: Access all ecc_status_result fields
On the NFC IP 1.1, the 32-bit ecc_status_result value comes from 2
consecutive 16-bit registers. This patch reads all the fields of this value,
which makes a difference for 4-kiB NF pages.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:42:46 -05:00
Benoît Thébaudeau
365b2c0761 mxc nand: cosmectic: Light cleanup
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:42:46 -05:00
Benoît Thébaudeau
80c8ab7b25 mxc nand: Merge mtd and spl register definitions
This patches fixes the TODO to use same register definitions in mtd mxc_nand and
nand_spl fsl nfc drivers.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 19:42:46 -05:00
Marek Vasut
9c790a748f mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver
This is based on Linux kernel -next:

commit 14f44abf1dafc20ba42ce8616a8fc8fbd1b3712b
Author: Brian Norris <computersforpeace@gmail.com>
Date:   Fri Jul 13 09:28:24 2012 -0700

    mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver

    The NAND_CHIPOPTIONS_MSK has limited utility and is causing real bugs. It
    silently masks off at least one flag that might be set by the driver
    (NAND_NO_SUBPAGE_WRITE). This breaks the GPMI NAND driver and possibly
    others.

    Really, as long as driver writers exercise a small amount of care with
    NAND_* options, this mask is not necessary at all; it was only here to
    prevent certain options from accidentally being set by the driver. But the
    original thought turns out to be a bad idea occasionally. Thus, kill it.

    Note, this patch fixes some major gpmi-nand breakage.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 18:54:43 -05:00
Joe Hershberger
e70bfa2986 nand: Make NAND lock status compatible with Micron
Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is not
the same as others.  Instead of bit 1 being lock, it is #lock_tight.
To make the driver support either format, ignore bit 1 and use only
bit 0 and bit 2.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 17:33:43 -05:00
Joe Hershberger
33b1d5cae3 nand: consolidate duplicated constants
NAND_CMD_ constants for lock/unlock should be in the header

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 17:33:42 -05:00
Joe Hershberger
e331ab2ee9 nand: Change ulong to loff_t and size_t
Missed in previous cleanup.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 17:33:42 -05:00
Joe Hershberger
eee623a504 nand: Add support for unlock.invert
NAND unlock command allows an invert bit to be set to unlock all but
the selected page range.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
[scottwood@freescale.com: updated docs and added comment about invert bit]
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 17:32:10 -05:00
Matthieu CASTET
d62e9caaaf mtd: support ONFI multi lun NAND
With onfi a flash is organized into one or more logical units (LUNs).
A logical unit (LUN) is the minimum unit that can independently execute
commands and report status.

Mtd does not exploit LUN, so make it see a big single flash where size is
lun_size * number_of_lun.

Without this patch MT29F8G08ADBDAH4 size is 512MiB instead of 1GiB.

Artem: split long line on 2 shorter ones.

This is commit 637957551c0ac80de8dfc7650d320c5a98c2c0c0 from Linux

Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com>
Acked-by: Florian Fainelli <ffainelli@freebox.fr>
Signed-off-by:  Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
[scottwood@freescale.com: picked from Linux into U-Boot]
Reported-by: Rafael Beims <rafael.beims@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-09-17 16:17:28 -05:00
Tom Rini
037e9d33db Merge branch 'master' of git://git.denx.de/u-boot-i2c 2012-09-17 11:39:03 -07:00
Tom Rini
a9ae14fce3 Merge branch 'master' of git://www.denx.de/git/u-boot-mmc 2012-09-12 10:26:06 -07:00
Stephan Linz
03afad2fc9 spi: xilinx: Remove unused variable
Warning is:

xilinx_spi.c: In function 'spi_setup_slave':
xilinx_spi.c:81: warning: unused variable 'regs'

Signed-off-by: Stephan Linz <linz@li-pro.net>
CC: Michal Simek <monstr@monstr.eu>
2012-09-11 09:24:56 +02:00
Michal Simek
25239e12d9 serial: uartlite: Init all uartlites for serial multi
Initialize all possible uartlites and return the first
initialized port. For static configuration is initialization
done in userial_ports array.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
2012-09-11 09:24:56 +02:00
Michal Simek
5340a7f1d7 block: systemace: Simplify base and width initialization
Use CONFIG parameters only at one location to simplify
the code. Also create ace_readw/writew functions.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-09-11 09:24:16 +02:00
Andy Fleming
95b01c47ed mmc: Remove incorrect cmd->flags usage
There were a couple of drivers that were actually using the flags
field of the cmd structure, despite the fact that no one ever
*set* that field. When we removed the field, those drivers failed
to compile. Replaced the references with the correct usage of
resp_type.

Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-06 15:23:13 -05:00
Koen Kooi
a532278074 omap4 i2c: add support for i2c bus 4
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
2012-09-06 06:01:09 +02:00
Jaehoon Chung
b09ed6e4fe mmc: s5p_sdhci: add the set_mmc_clk for cmu control
Samsung SoC use the cmu control to set clock.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:33:26 -05:00
Jaehoon Chung
8458e0283f mmc: s5p_sdhci: fixed wrong function argument
Useless code is removed, and get buswidth value.
buswidth value will be used to choice the 4bit or 8bit.
(Now used 4bit mode in sdhci.c by default)

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungin.park@samsung.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:33:26 -05:00
Jaehoon Chung
b268660ced mmc: s5p_sdhci: set the SDHCI_QUIRK_BROKEN_R1B
Samsung SoC is broken busy waiting for R1b type.
And clk delay control value is modified the previosuly value.
(that value used at the s5p_mmc.c)

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:33:26 -05:00
Joe Hershberger
470dcc7511 mmc: Add a SDHCI quirk for boards that have no CD
Some boards have no Card Detect wired.  In that case, set the CD test
bits in the standard interface.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:33:25 -05:00
Joe Hershberger
073cfd1c04 mmc: Fix version check for clock API in sdhci driver
When setting up the clocks in the sdhci driver, the "spec version"
must be masked off.  Otherwise any time the vendor version is not 0,
the check will allways assume the interface is version 3.  This breaks
when the interface is actually version 1 or 2.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:33:25 -05:00
Benoît Thébaudeau
6bb4b4bc35 mmc_get_dev: Return error if mmc_init fails
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Andy Fleming <afleming@gmail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:32:42 -05:00
Stephen Warren
8948ea8302 mmc: detect boot sectors using EXT_CSD_BOOT_MULT too
Some eMMC devices contain boot partitions, but do not set the PART_SUPPORT
bit in EXT_CSD_PARTITIONING_SUPPORT. Allow partition selection on such
devices, by enabling partition switching when EXT_CSD_BOOT_MULT is set.

Note that the Linux kernel enables access to boot partitions solely based
on the value of EXT_CSD_BOOT_MULT; EXT_CSD_PARTITIONING_SUPPORT only
influences access to "general" partitions.

eMMC devices affected by this issue exist on various NVIDIA Tegra
platforms (and presumably many others too), such as Harmony (plug-in eMMC),
Seaboard, Springbank, and Whistler (plug-in eMMC).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:32:41 -05:00
Mikhail Kshevetskiy
122efd4389 MMC: u-boot-spl may be compiled without partition support
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:32:41 -05:00
Yoshihiro Shimoda
cdfd1ac6df mmc: fix capacity calculation when EXT_CSD_SEC_CNT is used
Since the type of "ext_csd" was array of char, the following
calculation might fail when the value of ext_csd[EXT_CSD_SEC_CNT]
was minus.

	capacity = ext_csd[EXT_CSD_SEC_CNT] << 0
			| ext_csd[EXT_CSD_SEC_CNT + 1] << 8
			| ext_csd[EXT_CSD_SEC_CNT + 2] << 16
			| ext_csd[EXT_CSD_SEC_CNT + 3] << 24;

So, this patch changes the type of "ext_csd" to array of u8.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:32:41 -05:00
Yoshihiro Shimoda
97a7b9928a mmc: sh_mmcif: enable MMC_MODE_HC
The controller can control high capacity cards. So, the patch adds
the flag. If the flag is not set, "mmcinfo" will fail when a high
capacity card is used.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:32:41 -05:00
Jongman Heo
5b0c942f89 mmc: fix wrong timeout check in mmc_send_status()
(!timeout) condition check in mmc_send_status() can never be met,
because do-while loop ends up with negative timeout value, -1.

Fix the check to handle TIMEOUT case correctly.

Signed-off-by: Jongman Heo <jongman.heo@gmail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-05 17:32:41 -05:00
Wolfgang Denk
a6f0c4faa4 Merge branch 'master' of git://git.denx.de/u-boot-avr32
* 'master' of git://git.denx.de/u-boot-avr32:
  net:macb: add line break
  avr32:portmux: fix setup for macb1
  avr32: Remove redundant LDSCRIPT definition

Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-09-04 09:17:27 +02:00
Andreas Bießmann
6ed0e94071 net:macb: add line break
Without this patch we see annoying output like this:

---8<---
U-Boot> dhcp
macb1: PHY not foundmacb0: PHY present at 1
macb0: Starting autonegotiation...
--->8---

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
cc: Joe Hershberger <joe.hershberger@gmail.com>
2012-09-03 23:39:11 +02:00
Joe Hershberger
de15a06aad cfi: Make the flash erase and write operations abortable
Check for ctrlc() in operations that take time and loop over the flash
addresses.

In netconsole, tstc() is expensive.  Only check once in a while to not
slow down the operation significantly.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-09-03 11:24:27 +02:00
Joe Hershberger
6822a647b9 cfi: Check for blank before erase
Added an optional check in the CFI driver to evaluate if the sector is
already blank before issuing an erase command.  Improves erase time by
over a factor of 10 if already blank.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-09-03 11:24:27 +02:00
Stephan Linz
c20dbf64a9 input: key_matrix: fix header inclusion
On Microblaze with device tree support enabled we run into
the error below.

I'm not sure, but I think that all source code should include
at least the common.h and just this fix the problem on
Microblaz architecture.

The error is:

In file included from key_matrix.c:29:
include/malloc.h:364: error: conflicting types for 'memset'
include/linux/string.h:71: error: previous declaration of 'memset' was here
include/malloc.h:365: error: conflicting types for 'memcpy'
include/linux/string.h:74: error: previous declaration of 'memcpy' was here

Signed-off-by: Stephan Linz <linz@li-pro.net>
CC: Bernie Thompson <bhthompson@chromium.org>
CC: Simon Glass <sjg@chromium.org>
CC: Tom Warren <twarren@nvidia.com>
CC: Michal Simek <monstr@monstr.eu>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <monstr@monstr.eu>
2012-09-02 17:44:20 +02:00
Benoît Thébaudeau
df930e9b3c rtc: pcf8563: Make century compatible with Linux
This driver uses the century bit of this RTC in the opposite way Linux does.
From Linux's rtc-pcf8563.c:
	/*
	 * The meaning of MO_C bit varies by the chip type.
	 * From PCF8563 datasheet: this bit is toggled when the years
	 * register overflows from 99 to 00
	 *   0 indicates the century is 20xx
	 *   1 indicates the century is 19xx
	 * From RTC8564 datasheet: this bit indicates change of
	 * century. When the year digit data overflows from 99 to 00,
	 * this bit is set. By presetting it to 0 while still in the
	 * 20th century, it will be set in year 2000, ...
	 * There seems no reliable way to know how the system use this
	 * bit.  So let's do it heuristically, assuming we are live in
	 * 1970...2069.
	 */

As U-Boot's PCF8563 driver does not say it is supposed to support the RTC8564,
make this driver compatible with Linux's by giving the opposite meaning to the
century bit.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Wolfgang Denk <wd@denx.de>
2012-09-02 17:31:00 +02:00
Kaspter Ju
67cbbf25c5 mmc: Remove unused item flags in struct mmc_cmd
Signed-off-by: Kaspter Ju <nigh0st3018@gmail.com>
2012-09-02 16:56:17 +02:00
Wolfgang Denk
7cdcaef0b2 Merge branch 'master' of git://git.denx.de/u-boot-usb
* 'master' of git://git.denx.de/u-boot-usb:
  MUSB driver: Timeout is never detected as the while loop does not end
  usb: fix ulpi_set_vbus prototype
  pxa25x: Add UDC registers definitions
  USB: Fix strict aliasing in ohci-hcd
  usb: Optimize USB storage read/write
  ehci: Optimize qTD allocations
  usb_stor_BBB_transport: Do not delay when not required
  usb_storage: Remove EHCI constraints
  usb_storage: Restore non-EHCI support
  ehci-hcd: Boost transfer speed
  ehci: cosmetic: Define used constants
  ehci: Fail for multi-transaction interrupt transfers
  arm:trats: Enable g_dnl composite USB gadget with embedded DFU function on TRATS
  arm:trats: Support for USB UDC driver at TRATS board.
  dfu:cmd: Support for DFU u-boot command
  dfu: MMC specific routines for DFU operation
  dfu: DFU backend implementation
  dfu:usb: DFU USB function (f_dfu) support for g_dnl composite gadget
  dfu:usb: Support for g_dnl composite download gadget.
  ehci: cosmetic: Define the number of qt_buffers

Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-09-02 16:38:48 +02:00
Andrew Sharp
69fd2d3b05 pci: add CONFIG_PCI_ENUM_ONLY for platforms that don't need PCI setup done
Introduce CONFIG_PCI_ENUM_ONLY variable for platforms that just want a
quick enumberation of the PCI devices, but don't need any setup work done.
This is very beneficial on platforms that have u-boot loaded by another
boot loader which does a more sophisticated job of setup of PCI devices
than u-boot.  That way, u-boot can just read what's there and get on
with life.  This is what SeaBIOS does.

Signed-off-by: Andrew Sharp <andywyse6@gmail.com>
2012-09-02 14:19:05 +02:00
Andrew Sharp
03992ac2c9 pci: minor cleanup of CONFIG_PCI_PNP usage
Refactor the common PCI code just a tiny bit surrounding the PCI_PNP
(pciauto) stuff.  Makes the code a tiny bit easier to read, and also
makes it more obvious that almost no platform needs to setup or use the
pci_config_table stuff.

Signed-off-by: Andrew Sharp <andywyse6@gmail.com>
2012-09-02 14:18:19 +02:00
Andrew Sharp
cb2bf931dc pci: clean up some whitespace and formatting
I tried to clean up the white space and formatting offenses and
inconsistencies in the generic PCI code that obviously has been around for
some time.  Emphasis on large increases in readability and maintainability
and consistency.  I omitted the platform/processor specific files in
the drivers/pci directory because I wanted to leave those file to those
that care more about them.

Signed-off-by: Andrew Sharp <andywyse6@gmail.com>
2012-09-02 14:17:52 +02:00
Andrew Sharp
af778c6d9e pci: fix errant data types and corresponding access functions
In a couple of places, unsigned int and pci_config_*_dword were being
used when u16 and _word should be used.  Unsigned int was also being
used in a couple of places that should be pci_addr_t.

Signed-off-by: Andrew Sharp <andywyse6@gmail.com>
2012-09-02 14:17:42 +02:00
Wolfgang Denk
6e2fbdea1b Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging
* 'agust@denx.de' of git://git.denx.de/u-boot-staging:
  tx25: Use generic gpio_* calls
  config: Always use GNU ld
  tools: add kwboot binary to .gitignore file
  fdt: Include arch specific gpio.h instead of asm-generic/gpio.h
  serial: CONSOLE macro is not used

Conflicts:
	board/karo/tx25/tx25.c

Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-09-02 00:44:09 +02:00
Wu, Josh
bdfd59aa0f at91: atmel_nand: Update driver to support Programmable Multibit ECC controller
The Programmable Multibit ECC (PMECC) controller is a programmable binary
BCH(Bose, Chaudhuri and Hocquenghem) encoder and decoder. This controller
can be used to support both SLC and MLC NAND Flash devices. It supports to
generate ECC to correct 2, 4, 8, 12 or 24 bits of error per sector of data.

To use PMECC in this driver, the user needs to set the PMECC correction
capability, the sector size and ROM lookup table offsets in board config file.

This driver is ported from Linux kernel atmel_nand PMECC patch. The main difference
is in this version it uses registers structure access hardware instead of using macros.
It is tested in 9x5 serial boards.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
[rebase]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-09-01 17:06:14 +02:00
Wu, Josh
ae79794e54 at91: atmel_nand: remove unused variables.
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>
2012-09-01 17:06:14 +02:00
Wu, Josh
fe2185ea80 at91: atmel_nand: extract HWECC initialization code into one function: atmel_hw_nand_init_param().
This patch
1. extract the hwecc initialization code into one function. It is a preparation for adding atmel PMECC support.
2. enable CONFIG_SYS_NAND_SELF_INIT. Which make us can configurate the ecc parameters between nand_scan_ident() and nand_scan_tail().

Signed-off-by: Josh Wu <josh.wu@atmel.com>
[fix empty newline at EOF error and move return value check into ifdef]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-09-01 17:06:14 +02:00