Tim Harvey [Wed, 8 Apr 2015 19:54:33 +0000 (12:54 -0700)]
imx: ventana: assign default ethprime dynamically
Gateworks Ventana boards don't all use IMX6 FEC, so lets define default
ethprime based off the first detected device.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Tim Harvey [Wed, 8 Apr 2015 19:54:32 +0000 (12:54 -0700)]
imx: ventana: add i210 support
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Tim Harvey [Wed, 8 Apr 2015 19:54:31 +0000 (12:54 -0700)]
imx: ventana: disable 4k tftp/nfs packets
I've encountered issues when using 4k packets through certain switches. For
now disable this and go back to using MTU size packets.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Fabio Estevam [Mon, 20 Apr 2015 17:48:57 +0000 (14:48 -0300)]
mx6: Add initial SPL support for HummingBoard-i2eX
Add the initial SPL support for HummingBoard-i2eX, which is based on a
MX6 Dual.
For more information about HummingBoard, please check:
http://www.solid-run.com/products/hummingboard/
Based on the work from Jon Nettleton and Rabeeh Khoury.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tim Harvey [Wed, 8 Apr 2015 18:45:39 +0000 (11:45 -0700)]
fdt: add new fdt_fixup_display function to configure display
Add 'fdt_fixup_display' function to fixup device-tree native-mode property
of display-timings node to select timings for a specific display.
This is useful if a device-tree has configurations for multiple
display timings for undetectable displays.
see kernel Documentation/devicetree/bindings/video/display-timing.txt
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tim Harvey [Fri, 3 Apr 2015 23:52:52 +0000 (16:52 -0700)]
arm: mx6: ddr: add pd_fast_exit flag to system information
DDR3 has a special Precharge power-down mode: fast-exit vs slow-exit.
In slow-exit mode the DLL is off but in some quiescent state that makes it easy
to turn on again in tXPDLL cycles (about 10tCK) vs the full tDLLK (512tCK).
In fast-exist mode the DLL is maintained such that it is ready again in about
3tCK.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Jörg Krause [Thu, 26 Mar 2015 22:53:11 +0000 (23:53 +0100)]
ARM: mxs: Get boot mode from OCRAM
Reading the boot mode pins after power-up does not necessarily represent the
boot mode used by the ROM loader. For example the state of a pin may have
changed because a recovery switch which was pressed to enter USB mode is
already released after plugging in USB.
The ROM loader stores the value a fixed address in OCRAM. Use this value
instead of reading the boot map pins.
The GLOBAL_BOOT_MODE_ADDR for i.MX28 is taken from an U-Boot patch for the
MX28EVK:
http://repository.timesys.com/buildsources/u/u-boot/u-boot-2009.08/u-boot-2009.08-mx28-
201012211513.patch
Leave the boot mode detection for the i.MX23 untouched. Someone has to test
whether the i.MX ROM loader does also store the boot mode in OCRAM and if the
address match.
This patch superseeds my incorrect patch:
ARM: mxs: get boot mode from OTP
http://patchwork.ozlabs.org/patch/454930/
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Cc: Stefano Babic <sbabic@denx.de>
Tom Rini [Mon, 13 Apr 2015 14:05:46 +0000 (10:05 -0400)]
Prepare v2015.04
Signed-off-by: Tom Rini <trini@konsulko.com>
Pavel Machek [Mon, 13 Apr 2015 12:49:28 +0000 (14:49 +0200)]
break build if it would produce broken binary
Add an error in known-bad case so that we don't produce broken and
hard to debug binaries.
Signed-off-by: Pavel Machek <pavel@denx.de>
Tom Rini [Mon, 13 Apr 2015 14:52:46 +0000 (10:52 -0400)]
Merge branch 'master' of git://denx.de/git/u-boot-imx
Stephen Warren [Mon, 13 Apr 2015 03:43:25 +0000 (21:43 -0600)]
ARM: rpi: add a couple more revision IDs
According to Gordon Henderson's WiringPi library, there are some more
Pi revision IDs out there. Add support for them.
http://git.drogon.net/?p=wiringPi;a=blob_plain;f=wiringPi/wiringPi.c;hb=
5edd177112c99416f68ba3e8c6c4db6ed942e796
At least ID 0x13 is out in the wild:
Reported-by: Chee-Yang Chau <cychau@gmail.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Masahiro Yamada [Sat, 11 Apr 2015 15:58:14 +0000 (00:58 +0900)]
ARM: fix arch/arm/Makefile for Tegra
Since commit
79d75d752717 (ARM: move -march=* and -mtune= options to
arch/arm/Makefile), all the Tegra boards are broken because the SPL
is built for ARMv7.
Insert Tegra-specific code to arch/arm/Makefile to set compiler
flags for an earlier ARM architecture.
Note:
The v1 patch for commit
79d75d752717 *was* correct when it was
submitted. Notice it was originally written for multi .config
configuration where Kconfig set CONFIG_CPU_V7/CONFIG_CPU_ARM720T for
Tegra U-Boot Main/SPL, respectively. But, until it was merged into
the mainline, commit
e02ee2548afe (kconfig: switch to single .config
configuration) had been already applied there.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Stephen Warren <swarren@nvidia.com>
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Stefan Roese [Wed, 11 Mar 2015 11:05:04 +0000 (12:05 +0100)]
arm: armada-xp: Fix SPL for AXP by using save_boot_params_ret
Patch
e11c6c27 (arm: Allow lr to be saved by board code) introduced
a different method to return from save_boot_params(). The SPL support
for AXP has been pulled and changing to this new method is now
required for SPL to work correctly.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Tom Rini [Fri, 10 Apr 2015 16:39:13 +0000 (12:39 -0400)]
Merge git://git.denx.de/u-boot-arc
Alexey Brodkin [Fri, 10 Apr 2015 16:22:40 +0000 (19:22 +0300)]
arc: fix separate compilation of start.o
While testing "arc: make sure _start is in the beginning of .text
section" I haven't done proper clean-up of built binaries and so missed
another tiny bit that lead to the following error:
--->8---
LD u-boot
arc-linux-ld.bfd: cannot find arch/arc/lib/start.o
Makefile:1107: recipe for target 'u-boot' failed
make: *** [u-boot] Error 1
--->8---
Fix is trivial: put "start.o" in "extra-y".
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Linus Walleij [Sat, 4 Apr 2015 23:48:33 +0000 (01:48 +0200)]
integrator: consolidate flash info
This consolidates the flash settings for the Integrator
and activates the new ARM flash image support for them
so images can be loaded by name from flash.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Sat, 4 Apr 2015 23:48:32 +0000 (01:48 +0200)]
vexpress64: juno: add default NOR flash boot
This modifies the vexpress64 Juno configuration so that
it will by default load and boot a kernel and a device tree
from the images stored in the NOR flash. When we are
at it, also define the proper command line for the Juno and
indicate that the USB stick (/dev/sda1) is the default
root file system.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Sat, 4 Apr 2015 23:48:31 +0000 (01:48 +0200)]
common/armflash: Support for ARM flash images
The ARM reference designs all use a special flash image format
that stores a footer (two versions exist) at the end of the last
erase block of the image in flash memory.
Version one of the footer is indicated by the magic number
0xA0FFFF9F at 12 bytes before the end of the flash block and
version two is indicated by the magic number 0x464F4F54 0x464C5348
(ASCII for "FLSHFOOT") in the very last 8 bytes of the erase block.
This command driver implements support for both versions of the
AFS images (the name comes from the Linux driver in drivers/mtd/afs.c)
and makes it possible to list images and load an image by name into
the memory with these commands:
afs - lists flash contents
afs load <image> - loads image to address indicated in the image
afs load <image> <addres> - loads image to a specified address
This image scheme is used on the ARM Integrator family, ARM
Versatile family, ARM RealView family (not yet supported in U-Boot)
and ARM Versatile Express family up to and including the new
Juno board for 64 bit development.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tom Rini [Fri, 10 Apr 2015 14:32:50 +0000 (10:32 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-fdt
Tom Rini [Fri, 10 Apr 2015 13:38:38 +0000 (09:38 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-arm
Stefan Agner [Fri, 10 Apr 2015 09:25:43 +0000 (11:25 +0200)]
common, ubi: use positive return values for ubi check
The ubi check command is expected to not fail and just check whether
a volume exist or not. Currently, when a volume does not exist, the
command fails which leads to an error:
"exit not allowed from main input shell."
Use 1 to indicate that a volume does not exist. This allows to use
ubi check in an if statement, e.g.
if ubi check rootfs; then; echo "exists"; else; echo "not there"; fi
Alexey Brodkin [Fri, 10 Apr 2015 15:41:58 +0000 (18:41 +0300)]
arc: make sure _start is in the beginning of .text section
This is important to have entry point in the beginning of .text section
because it allows simple loading and execution of U-Boot.
For example pre-bootloader loads U-Boot in memory starting from offset
0x81000000 and then just jumps to the same address.
Otherwise pre-bootloader would need to find-out where entry-point is. In
its turn if it deals with binary image of U-Boot there's no way for
pre-bootloader to get required value.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Simon Glass [Fri, 3 Apr 2015 23:57:24 +0000 (17:57 -0600)]
fdt: nios: Fix warning in ft_cpu_setup()
This function should not return a value.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Thomas Chou <thomas@wytron.com.tw>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:51 +0000 (11:40 +0200)]
lpc32xx: add support for board work_92105
Work_92105 from Work Microwave is an LPC3250-
based board with the following features:
- 64MB or 128MB SDR DRAM
- 1 GB SLC NAND, managed through MLC controller.
- Ethernet
- Ethernet + PHY SMSC8710
- I2C:
- EEPROM (24M01-compatible)
- RTC (DS1374-compatible)
- Temperature sensor (DS620)
- DACs (2 x MAX518)
- SPI (through SSP interface)
- Port expander MAX6957
- LCD display (HD44780-compatible), controlled
through the port expander and DACs
This board has SPL support, and uses the LPC32XX boot
image format.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:50 +0000 (11:40 +0200)]
Introduce CONFIG_SPL_PANIC_ON_RAW_IMAGE
introduce CONFIG_SPL_PANIC_ON_RAW_IMAGE.
An SPL which define this will panic() if the
image it has loaded does not have a mkimage
signature.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:49 +0000 (11:40 +0200)]
lpc32xx: add lpc32xx-spl.bin boot image target
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:48 +0000 (11:40 +0200)]
dtt: add ds620 support
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:47 +0000 (11:40 +0200)]
lpc32xx: add LPC32xx SSP support (SPI mode)
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:46 +0000 (11:40 +0200)]
lpc32xx: add GPIO support
This driver only supports Driver Model, not legacy model.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:45 +0000 (11:40 +0200)]
lpc32xx: i2c: add LPC32xx I2C interface support
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:44 +0000 (11:40 +0200)]
lpc32xx: mtd: nand: add MLC NAND controller
The controller's Reed-Solomon ECC hardware is
used except of course for raw reads and writes.
It covers in- and out-of-band data together.
The SPL framework is supported.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD \(3ADEV\) [Tue, 31 Mar 2015 09:40:43 +0000 (11:40 +0200)]
lpc32xx: add Ethernet support
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
Albert ARIBAUD [Fri, 10 Apr 2015 12:22:23 +0000 (14:22 +0200)]
Merge branch 'u-boot/master'
Grazvydas Ignotas [Wed, 8 Apr 2015 23:14:33 +0000 (02:14 +0300)]
omap3: pandora: use common configuration
This allows to clean up the config a good deal and also converts
pandora to Generic Board.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Przemyslaw Marczak [Wed, 8 Apr 2015 16:12:20 +0000 (18:12 +0200)]
odroid-XU3: update board maintainer
At present Hyungwon can't take care of this board in U-Boot,
so I will keep it working.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Hyungwon Hwang <human.hwang@samsung.com>
Anatolij Gustschin [Wed, 8 Apr 2015 11:49:41 +0000 (13:49 +0200)]
mcx: update maintainer and convert to generic board
Remove obsolete email address from MAINTAINERS.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Tom Rini <trini@konsulko.com>
Masahiro Yamada [Wed, 8 Apr 2015 09:23:23 +0000 (18:23 +0900)]
MAINTAINERS: fix TI DaVinci directory path and add KeyStone
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Alexey Brodkin [Thu, 9 Apr 2015 16:50:58 +0000 (19:50 +0300)]
board: axs10x - support v3 mother-board
There're 2 versions of motherboards that could be used in ARC SDP.
The only important difference for U-Boot is different NAND IC in use:
[1] v2 board (we used to support up until now) sports MT29F4G08ABADAWP
while
[2] v3 board sports MT29F4G16ABADAWP
They are almost the same except data bus width 8-bit in [1] and 16-bit
in [2]. And for proper support of 16-bit data bus we have to pass
NAND_BUSWIDTH_16 option to NAND driver core - which we do now knowing
board type we're running on.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Andrej Rosano [Wed, 8 Apr 2015 16:56:30 +0000 (18:56 +0200)]
ARM: mx5: add support for USB armory board
Add support for Inverse Path USB armory board, an open source
flash-drive sized computer based on Freescale i.MX53 SoC.
http://inversepath.com/usbarmory
Signed-off-by: Andrej Rosano <andrej@inversepath.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Chris Kuethe <chris.kuethe@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Vagrant Cascadian <vagrant@debian.org>
Tested-By: Vagrant Cascadian <vagrant@debian.org>
Tested-by: Chris Kuethe <chris.kuethe@gmail.com>
Andrej Rosano [Wed, 8 Apr 2015 16:56:29 +0000 (18:56 +0200)]
ARM: mx5: move to a standard arch/board approach
Move the MX5 based boards to arch/arm/cpu/armv7/mx5, following the
commit:
89ebc82137bebb11a8191f8b9cbf08f2533ae8bc
Signed-off-by: Andrej Rosano <andrej@inversepath.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Vagrant Cascadian <vagrant@debian.org>
Tested-by: Chris Kuethe <chris.kuethe@gmail.com>
Michal Simek [Wed, 8 Apr 2015 08:07:20 +0000 (10:07 +0200)]
ARM: zynq: Remove Jagan from list of maintainers
Email address is not longer valid that's why remove it.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Masahiro Yamada [Wed, 8 Apr 2015 05:25:50 +0000 (14:25 +0900)]
ARM: zynq: disable CONFIG_SYS_MALLOC_F to fix MMC boot
Since commit
326a682358c1 (malloc_f: enable SYS_MALLOC_F by default
if DM is on), Zynq MMC boot hangs up after printing the following:
U-Boot SPL 2015.04-rc5-00053-gadcc570 (Apr 08 2015 - 12:59:11)
mmc boot
reading system.dtb
Prior to commit
326a682358c1, Zynq boards enabled CONFIG_DM, but
not CONFIG_SYS_MALLOC_F. That commit forcibly turned on
CONFIG_SYS_MALLOC_F. I have not figured out the root cause, but
anyway it looks like CONFIG_SYS_MALLOC_F gave a bad impact on the
Zynq MMC boot.
We are planning to have the v2015.04 release in a few days.
I know this is a defensive fixup, but what I can do now is to add
# CONFIG_SYS_MALLOC_F is not set
to every Zynq defconfig file to get back the original behavior.
Tested on:
- Zedboard
- ZC706 board
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Cc: Simon Glass <sjg@chromium.org>
Ulises Cardenas [Fri, 27 Mar 2015 14:08:57 +0000 (08:08 -0600)]
Fix mxc_hab documenation for DEK blob generation
Include/fsl_sec.h defines sec_in and sec_out, according to the
platform's endianess. Therefore, CONFIG_SYS_FSL_LE needs to be
declared in the configuration file of the target, in order to use
enable the DEK blob generation command. This requirement is not
explicit in the README.mxc_hab.
Signed-off-by: Ulises Cardenas <Ulises.Cardenas@freescale.com>
Fabio Estevam [Mon, 6 Apr 2015 14:23:07 +0000 (11:23 -0300)]
mx53loco: Disable printing cpuinfo
Since commit
32df39c741788e ("mx5: fix get_reset_cause") we have the following
boot messages on a mx53qsb:
U-Boot 2015.04-rc5-00029-gd68df02 (Apr 06 2015 - 11:15:39)
CPU: Freescale i.MX53 rev2.1 at 800 MHz
Reset cause: POR
Board: MX53 LOCO
I2C: ready
DRAM: 1 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
In: serial
Out: serial
Err: serial
CPU: Freescale i.MX53 rev2.1 at 1000 MHz
Reset cause: unknown reset
Net: FEC [PRIME]
The CPU and Reset cause lines appear twice.
Initially mx53 boots at 800MHz, then at a later point the PMIC is configured via
I2C to raise the CPU voltage so that it can run at 1GHz.
To avoid such misleading double printings, disable printing cpu info for now.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
Tom Rini [Tue, 7 Apr 2015 13:38:54 +0000 (09:38 -0400)]
cmd_mem.c: Update 'iteration_limit' to unsigned long
With e37f1eb we now use strict_strtoul() in do_mem_mtest() and this
gives us a warning:
../include/vsprintf.h:38:5: note: expected 'long unsigned int *' but
argument is of type 'int *'
Signed-off-by: Tom Rini <trini@konsulko.com>
Pavel Machek [Mon, 6 Apr 2015 13:46:44 +0000 (15:46 +0200)]
fix makefiles to respect DTC setting
Top-level Makefile has option to select dtc binary, but it is ignored
due to bug in Makefile.lib. Fix it.
Signed-off-by: Pavel Machek <pavel@denx.de>
Masahiro Yamada [Mon, 6 Apr 2015 02:12:28 +0000 (11:12 +0900)]
MAKEALL: fix get_target_arch() to adjust to '-' in Status field
Since the Kconfig conversion, boards.cfg scanned by MAKEALL is
generated by tools/genboardscfg.py. Every board is supposed to have
its own MAINTAINERS that contains maintainer and status information,
but, in fact, MAINTAINERS is missing from some boards.
For such boards, the first field, Status, is filled with '-'.
It causes a problem for "set" command, which ignores '-' in its
arguments. Consequently, get_target_arch() returns a wrong field
and MAKEALL fails to get a correct toolchain.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 3 Apr 2015 03:30:25 +0000 (12:30 +0900)]
kbuild: include config.mk when auto.conf is not older than .config
Since the Kconfig conversion, config.mk has been included only when
include/config/auto.conf is newer than the .config file.
It causes build error if both files have the same time-stamps.
It is actually possible because EXT* file systems have a 1s time-stamp
resolution.
The config.mk should be included when include/config/auto.conf is
*not older* than the .config file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Tom Rini <trini@konsulko.com>
Reported-by: York Sun <yorksun@freescale.com>
Reported-by: Stephen Warren <swarren@nvidia.com>
Reported-by: Matthew Gerlach <mgerlach@opensource.altera.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Tom Rini [Thu, 2 Apr 2015 20:01:33 +0000 (16:01 -0400)]
am33xx/ddr.c: Fix regression on DDR2 platforms
Back in fc46bae a "clean up" was introduced that intended to reconcile
some of the AM335x codepaths based on how AM43xx operates.
Unfortunately this introduced a regression on the DDR2 platforms. This
was un-noticed on DDR3 (everything except for Beaglebone White) as we
had already populated sdram_config correctly in sequence. This change
brings us back to the older behavior and is fine on all platforms.
Tested on Beaglebone White, Beaglebone Black and AM335x GP EVM
Reported-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Pavel Machek [Wed, 1 Apr 2015 11:50:41 +0000 (13:50 +0200)]
cmd_mem: cleanups, catch bad usage
Currently, memtest will silently accept bad data. Perform error
checking on user intput.
Signed-off-by: Pavel Machek <pavel@denx.de>
Tang Yuantian [Tue, 31 Mar 2015 07:02:43 +0000 (15:02 +0800)]
ahci: Fix a wrong parameter pass
In stead of user_buffer_size, transfer_size should be used to pass to
ahci_device_data_io(). transfer_size is the length that we want the
low level function to transfer each time.
If we use user_buffer_size which is the totally data length as parameter,
low level function will actually create many SGs to transfer as many data
as possible each time. That will produce many redundant data transfer.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Mario Schuknecht [Tue, 24 Mar 2015 07:59:00 +0000 (08:59 +0100)]
env_sf: Fix recovery default
The u-boot environment is redundantly stored in a NOR flash on our boards.
Redundant means that there are two places to store the environment. But only
one of the two is active. I discovered that on one board the u-boot (env_sf)
uses the environment from the second place and the Kernel (fw_printenv) uses
the environment from the first place.
To decide which is the active environment there is a byte inside the
environment. 1 means active and 0 means obsolete. But on that board both
environments had have a 1. This can happen if a power loss or reset occurs
during writing the environment. In this situation the u-boot (env_sf)
implementation uses the second environment as default. But the Kernel
(fw_printenv) implementation uses the first environment as default.
This commit corrects the default in the u-boot env_sf implementation when a
problem was detected. Now the recovery default is the same like in all other
environment implementations. E.g. fw_printenv and env_flash. This ensures that
u-boot and Kernel use the same environment.
Signed-off-by: Mario Schuknecht <mario.schuknecht@dresearch-fe.de>
Tom Rini [Mon, 6 Apr 2015 10:57:15 +0000 (06:57 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-samsung
Łukasz Majewski [Wed, 1 Apr 2015 10:34:30 +0000 (12:34 +0200)]
config: exynos: trats2: Enable support for Image.itb at trats2 device
After this change it is possible to boot trats2 device with Image.itb,
which facilitates automated testing, since only one file is necessary.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Łukasz Majewski [Wed, 1 Apr 2015 10:34:29 +0000 (12:34 +0200)]
config: exynos: trats: Enable support for Image.itb at trats device
After this change it is possible to boot trats device with Image.itb,
which facilitates automated testing, since only one file is necessary.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Łukasz Majewski [Wed, 1 Apr 2015 10:34:28 +0000 (12:34 +0200)]
config: exynos: common: Provide env variables to support Image.itb
This change allows using Image.itb image format with Exynos4 devices
(especially trats and trats2).
Such change facilitates automated testing since only one binary needs
to be prepared.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:31 +0000 (19:05 +0530)]
smdk5420: Remove GPIO enums
Remove GPIOs from smdk5420 board file and because the same
is already specified via DT.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:30 +0000 (19:05 +0530)]
dts: peach_pi: Add DT properties needed for display
Add backlight enable GPIO, and delay needed for panel powerup
via FIMD DT node.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:29 +0000 (19:05 +0530)]
dts: peach_pit: Add SLP and RST GPIO properties in parade DT node
Now that parade driver supports reading SLP and RST GPIO
from DT, specify the same in parade DT node.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:28 +0000 (19:05 +0530)]
dts: exynos54xx: Add samsung, pwm-out-gpio property to FIMD node
Now that the exynos_fb driver supports handling backlight GPIO
via DT, specify pwm output property via FIMD DT node.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:27 +0000 (19:05 +0530)]
video: parade: configure SLP and RST GPIOs if specified in DT
Add support to configure EDP_RST GPIO and EDP_SLP GPIO,
if provided in parade DT node.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:26 +0000 (19:05 +0530)]
video: exynos_fb: configure backlight GPIOs if specified in DT
Add support to configure PWM_OUT(PWM output) GPIO and
BL_EN(backlight enable) GPIO, if provided in FIMD DT node.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:25 +0000 (19:05 +0530)]
Exynos5: Fix rpll_sdiv to support both peach-pit and peach-pi panels
The existing setting for rpll_sdiv generates 70.5Mhz RPLL
video clock to drive 1366x768 panel on peach_pit.
This clock rate is not sufficient to drive 1920x1080 panel on peach-pi.
So, we adjust rpll_sdiv to 3 so that it generates 141Mhz pixel clock
which can drive peach-pi LCD.
This change doesn't break peach-pit LCD since 141/2=70.5Mhz, i.e FIMD
divider at IP level will get set to 1(the required divider setting
will be calculated and set by exynos_fimd_set_clock()) and hence
peach-pit LCD still works fine.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Ajay Kumar [Wed, 4 Mar 2015 13:35:24 +0000 (19:05 +0530)]
arm: exynos: add display clocks for Exynos5800
Add get_lcd_clk and set_lcd_clk callbacks for Exynos5800 needed by
exynos video driver.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Sjoerd Simons [Thu, 12 Mar 2015 21:33:29 +0000 (22:33 +0100)]
config: peach: Correct memory layout environment settings
The peach boards have their SDRAM start address at 0x20000000 instead of
0x40000000 which seems common for all other exynos5 based boards. This
means the layout set in exynos5-common.h causes the kernel be loaded
more then 128MB (at 0x42000000) away from memory start which breaks
booting kernels with CONFIG_AUTO_ZRELADDR
Define a custom MEM_LAYOUT_ENV_SETTINGS for both peach boards which uses
the same offsets from start of memory as the common exynos5 settings.
This fixes booting via bootz and PXE
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Inha Song [Fri, 13 Mar 2015 08:48:35 +0000 (17:48 +0900)]
exynos5: add trace feature #ifdef in exynos5-common.h
We can enable / disable trace feature from the FTRACE config options.
To enable, compile U-Boot with FTRACE=1.
This patch add #ifdef FTRACE in exynos5-common.h for enable/disable
to use FTRACE configs instead of having to change board config files.
Signed-off-by: Inha Song <ideal.song@samsung.com>
Acked-by: Simon Glass <sjg@chroimum.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Guillaume GARDET [Wed, 11 Mar 2015 09:34:27 +0000 (10:34 +0100)]
Exynos: Clock: Fix exynos5_get_periph_rate for I2C.
Commit
2e82e9252695a612ab0cbf40fa0c7368515f6506 'Exynos: Clock: Cleanup
soc_get_periph_rate' introduced a bug in I2C config. This patch makes cros_ec
keyboard working again on Samsung Chromebook (snow).
Changes in V2: reorder lines as requested by Joonyoung Shim.
Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
Cc: Akshay Saraswat <akshay.s@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Reviewed-by: Simon Glass <sjg@chroimum.org>
Tested-by: Simon Glass <sjg@chroimum.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Hans de Goede [Sat, 4 Apr 2015 08:37:44 +0000 (10:37 +0200)]
sunxi: Fix Orangepi_mini dtb filename
The Orangepi_mini is different enough from the regular Orangepi that it needs
its own dtb, but when it got added a copy and paste error was made and it
got the same dtb filename, fix this.
While at it also add a short description of both Orangepi boards to the
defconfig files for them.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Tom Rini [Fri, 3 Apr 2015 13:14:44 +0000 (09:14 -0400)]
Merge git://git.denx.de/u-boot-arc
Tom Rini [Fri, 3 Apr 2015 13:14:38 +0000 (09:14 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-tegra
Conflicts:
board/armltd/vexpress64/vexpress64.c
Signed-off-by: Tom Rini <trini@konsulko.com>
Alexey Brodkin [Thu, 2 Apr 2015 07:19:12 +0000 (10:19 +0300)]
board: AXS10x - update SDIO clock value
With the most recent board firmware correct SDIO clock is 50MHz as
opposed to 25 MHz before.
Also set max frequency of MMC data exchange equal to SDIO clock -
because there's no way to transfer data faster than interface clock.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Mon, 30 Mar 2015 10:36:04 +0000 (13:36 +0300)]
arc: add support for SLC (System Level Cache, AKA L2-cache)
ARCv2 cores may have built-in SLC (System Level Cache, AKA L2-cache).
This change adds functions required for controlling SLC:
* slc_enable/disable
* slc_flush/invalidate
For now we just disable SLC to escape DMA coherency issues until either:
* SLC flush/invalidate is supported in DMA APIin U-Boot
* hardware DMA coherency is implemented (that might be board specific
so probably we'll need to have a separate Kconfig option for
controlling SLC explicitly)
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Fri, 27 Mar 2015 10:24:35 +0000 (13:24 +0300)]
board: Switch Abilis TB-100 board to Driver Model for serial port
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>
Alexey Brodkin [Tue, 17 Mar 2015 11:55:14 +0000 (14:55 +0300)]
serial-arc: switch to DM
Now when all infrastructure in ARC is ready for it let's switch ARC UART
to driver model.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>
Alexey Brodkin [Tue, 17 Mar 2015 11:26:43 +0000 (14:26 +0300)]
arc: minor fixes in Kconfig
[1] Fix misspeling in ARC_CACHE_LINE_SHIFT dependency, now cache-line
lenth selection is correctly enabled if either I$ or D$ are enabled.
[2] Add dummy entry to target list to make sure target type is always
mentioned in defconfig. Otherwise defconfig for the first target in the
list will not have target name and later on with addition of the new
target on top of the list in Kconfig will lead to corrupted
configuration expanded from defconfig.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Wed, 25 Feb 2015 15:10:18 +0000 (18:10 +0300)]
arc: get rid of CONFIG_SYS_GENERIC_GLOBAL_DATA
As discussed on mailing list we're drifting away from
CONFIG_SYS_GENERIC_GLOBAL_DATA in favour to use of board_init_f_mem()
for global data.
So do this for ARC architecture.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Tue, 17 Mar 2015 11:30:59 +0000 (14:30 +0300)]
arc: re-generate defconfigs
Before that moment our defconfigs were manually modified with addition
of new options. That means once anybody wants to add another option and
re-genarate defconfig with "make defconfig" there will be lots of
differences. So to make future modifications more clean we'll do bulk
re-generation right away.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Tue, 24 Feb 2015 16:40:36 +0000 (19:40 +0300)]
arc: clean-up init procedure
Intention behind this work was elimination of as much assembly-written
code as it is possible.
In case of ARC we already have relocation fix-up implemented in C so why
don't we use C for U-Boot copying, .bss zeroing etc.
It turned out x86 uses pretty similar approach so we re-used parts of
code in "board_f.c" initially implemented for x86.
Now assembly usage during init is limited to stack- and frame-pointer
setup before and after relocation.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Simon Glass <sjg@chromium.org>
Alexey Brodkin [Tue, 24 Feb 2015 14:08:44 +0000 (17:08 +0300)]
arc: move low-level interrupt and exception handlers in a separate file
This separation makes maintenance of code easier because those low-level
interrupt- or exception handling routines are pretty static and usually
require not much care while start-up code is a subject of modifications
and enhancements.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Thu, 19 Feb 2015 15:40:58 +0000 (18:40 +0300)]
arc: merge common start-up code between ARC and ARCv2
Even though ARCompact and ARCv2 are not binary compatible most of
assembly instructions are used in both. With this change we'll get rid
of duplicate code.
Still IVTs are implemented differently so we're keeping them in separate
files.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Fri, 27 Mar 2015 09:47:29 +0000 (12:47 +0300)]
arc: cache - build invalidate_icache_all() and invalidate_dcache_all()
always
Make both invalidate_icache_all() and invalidate_dcache_all() available
even if U-Boot is configured with CONFIG_SYS_DCACHE_OFF and/or
CONFIG_SYS_ICACHE_OFF.
This is useful because configuration of U-Boot may not match actual
hardware features. Real board may have cache(s) but for some reason we
may want to run U-Boot with cache(s) disabled (for example if some
peripherals work improperly with existing drivers if data cache is
enabled). So board may start with cache(s) enabled (that's the case for
ARC cores with built-in caches) but early in U-Boot we disable cache(s)
and make sure all contents of data cache gets flushed in RAM.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin [Tue, 24 Feb 2015 16:31:51 +0000 (19:31 +0300)]
serial/serial_arc: set registers address during compilation
Being global variable with 0 value it falls into .bss area which we may
only use after relocation to RAM. And right afetr relocation we zero
.bss - effectively cleaing register address set for early console.
Now with pre-set value "regs" variable is no longer in .bss and this way
safely survives relocation.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Tom Rini [Wed, 1 Apr 2015 00:53:59 +0000 (20:53 -0400)]
Prepare v2015.04-rc5
Signed-off-by: Tom Rini <trini@konsulko.com>
Tom Rini [Tue, 31 Mar 2015 23:15:59 +0000 (19:15 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-atmel
Wu, Josh [Mon, 30 Mar 2015 06:51:19 +0000 (14:51 +0800)]
ARM: at91: sama5: move the common part of configurations to at91-sama5_common.h
Create a new configuration file: at91-sama5_common.h. Which includes the
configurations that reused by all SAMA5 chips.
at91-sama5_common.h includes:
- hw macros (clock, text_base and etc.)
- default commands.
- BOOTARGS
- U-Boot common configs.
NOTE: NOR flash definition should be put before including the common header.
For sama5d3-xplained:
- add CMD_SETEXPR
For sama5d3xek:
- add CMD_SETEXPR
- change CONFIG_SYS_MALLOC_LEN to (4*1024*1024)
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Bo Shen [Fri, 27 Mar 2015 06:23:36 +0000 (14:23 +0800)]
ARM: atmel: at91sam9n12ek: enable spl support
Enable SPL support for at91sam9n12ek boards, now it supports
boot up from NAND flash, serial flash.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Bo Shen [Fri, 27 Mar 2015 06:23:35 +0000 (14:23 +0800)]
ARM: atmel: at91sam9x5ek: enable spl support
Enable SPL support for at91sam9x5ek board. Now, it supports
boot up from NAND flash and SPI flash.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Bo Shen [Fri, 27 Mar 2015 06:23:34 +0000 (14:23 +0800)]
ARM: atmel: at91sam9m10g45ek: enable spl support
Supports boot up from NAND flash with software ECC eanbled.
And supports boot up from SD/MMC card with FAT file system.
As the boot from SD/MMC card with FAT file system, the BSS
segment is too big to fit into SRAM, so, use the lds to put
it into SDRAM.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Bo Shen [Fri, 27 Mar 2015 06:23:33 +0000 (14:23 +0800)]
ARM: atmel: arm926ejs: fix clock configuration
Config MCKR according to the datasheet sequence, or else it
will cause the MCKR configuration failed.
Remove timeout checking for clock configuration, if configure
the clock failed, let the system hang while not run in wrong
clock configuration.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Tested-by: Heiko Schocher <hs@denx.de>
Wu, Josh [Tue, 24 Mar 2015 09:07:22 +0000 (17:07 +0800)]
ARM: at91: at91sam9n12ek: save the environment to a fat file in MMC card
Insteading in mmc's raw sectors, this patch will save the environment
in a fat file (uboot.env) in mmc card's first FAT patition by default.
If you want to save in mmc's raw sectors, you only need to define
CONFIG_ENV_IS_IN_MMC.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
David Dueck [Fri, 20 Mar 2015 09:52:49 +0000 (10:52 +0100)]
ARM: at91: atmel_nand: Support flash based BBT
Add support for on-flash bad block table. This makes U-Boot handle an existing
BBT correctly.
Signed-off-by: David Dueck <davidcdueck@googlemail.com>
Reviewed-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
CC: Boris BREZILLON <boris.brezillon@free-electrons.com>
CC: Josh Wu <josh.wu@atmel.com>
CC: Andreas Bießmann <andreas.devel@googlemail.com>
CC: Scott Wood <scottwood@freescale.com>
Acked-by: Josh Wu <josh.wu@atmel.com>
Heiko Schocher [Tue, 17 Mar 2015 07:26:11 +0000 (08:26 +0100)]
arm, at91: corvus: move MACH_TYPE to defconfig
move MACH_TYPE into defconfig
Signed-off-by: Heiko Schocher <hs@denx.de>
Tom Rini [Wed, 11 Feb 2015 00:07:22 +0000 (19:07 -0500)]
spl_atmel.c: Switch s_init to board_init_f
To facilitate changing lowlevel_init to become s_init, move the current
contents of s_init into board_init_f and add the rest of what
board_init_f does here.
In order to compile clean without CONFIG_SKIP_LOWLEVEL_INIT set, leave an
empty stub of s_init(). It can be removed when lowlevel_init becomes s_init.
Cc: Bo Shen <voice.shen@atmel.com>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Tested-by: Matt Porter <mporter@konsulko.com> on sama5d3_xplained
Signed-off-by: Tom Rini <trini@ti.com>
[rebased on current master, leave s_init() as empty stub]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Bo Shen [Wed, 4 Feb 2015 07:53:02 +0000 (15:53 +0800)]
ARM: atmel: armv7: switch to use common timer functions
The commit 8dfafdd (Introduce common timer functions), add common
timer functions, we can use them directly.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
[rebase on current master]
Sigend-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Bo Shen [Wed, 4 Feb 2015 07:53:01 +0000 (15:53 +0800)]
ARM: atmel: arm9: switch to use common timer functions
Signed-off-by: Bo Shen <voice.shen@atmel.com>
[rebase on current master]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Wu, Josh [Wed, 4 Feb 2015 03:03:32 +0000 (11:03 +0800)]
ARM: at91: sama5d4: display the U-Boot version on LCD
This patch will display the U-Boot version on LCD.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
Tom Rini [Tue, 31 Mar 2015 21:17:06 +0000 (17:17 -0400)]
Merge git://git.denx.de/u-boot-nand-flash
Tom Rini [Tue, 31 Mar 2015 15:45:36 +0000 (11:45 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-imx
Stefan Agner [Tue, 24 Mar 2015 16:54:20 +0000 (17:54 +0100)]
mtd: vf610_nfc: specify transfer size before each transfer
Testing showed, that commands like STATUS made the buffer dirty
when executed with NFC_SECSZ set to the page size. It looks
like the controller transfers bogus data when this register
is configured. When setting it to 0, the buffer does not get
altered while the status command still seems to work flawless.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Stefan Agner [Tue, 24 Mar 2015 16:54:19 +0000 (17:54 +0100)]
mtd: vf610_nfc: mark page as dirty on block erase
The driver tries to re-use the page buffer by storing the page
number of the current page in the buffer. The page is only read
if the requested page number is not currently in the buffer. When
a block is erased, the page number is marked as invalid if the
erased page equals the one currently in the cache. However, since
a erase block consists of multiple pages, also other page numbers
could be affected.
The commands to reproduce this issue (on a written page):
> nand dump 0x800
> nand erase 0x0 0x20000
> nand dump 0x800
The second nand dump command returns the data from the buffer,
while in fact the page is erased (0xff).
Avoid the hassle to calculate whether the page is affected or not,
but set the page buffer unconditionally to invalid instead.
Signed-off-by: Stefan Agner <stefan@agner.ch>