If we want to trap the processer in the exception vectors
we have to use unconditional branch instructions. I don't
know what I thought when using bne :-/
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This shrinks the resulting binary size by ~25%. Exceptions
are still handled in arm mode, so we have to explicitely
put .arm directives into the exception code. Thumb-2 mode
has been tested on i.MX51 Babbage board.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add Mitac MioA701 board initial support.
The support provides basic boot and :
- a console over USB (serial gadget).
- the SD card support
- the MTD docg3 support
- the LCD support
Add a check in the default environment for a barebox.env
file on the first partition (FAT). If the file exists,
source it instead of the normal boot procedure.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to get the runtime offset of the board_init_lowlevel_return
by doing a &board_init_lowlevel_return. This does not work in thumb-2
mode, so use a separate linker section for this function instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Traditionally U-Boot and barebox have the exception vectors at
the start of the binary. There is no real reason in doing so,
because in the majority of cases this data will not be at 0x0
where it could be used as vectors directly anyway.
This patch puts the vectors into a separate linker section and
defines an head function which is placed at the start of the
image instead. Putting this in a separate function also has
the advantage that it can be placed at the start of images
which require an additional header like several Freescale i.MX
images. As the head function contains the barebox arm magic
those images can now also be detected as barebox images.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- this is taken from freescale-mx35-3-stack/3stack.c and allows
this board to run Freescale's kernel which relies on the system
revision to configure the correct PMIC.
- On rev0 boards (with DA9053), the log is :
detected i.MX53 rev 2.1
MCIMX53-START board 1.0
On newer boards (rev A or B with MC34708), the log is :
mc34708-i2c@mc34708-i2c0: MC34708 ID: 0x0014
detected i.MX53 rev 2.1
MCIMX53-START-R board 1.0 rev B
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
and register mc34708 which is present on MCIMX53-START-R board
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this allows I2C to work on boards which don't have external pull up
(like LOCO board)
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fixing this typo lets the barebox for pm9261 to be build.
Signed-off-by: Asen Chavdarov Dimov <dimov@ronetix.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add CCCR bits definition for PXA SoC, so that the bootloader
can setup a stable core clock frequency, which is not the
initial reset clock, as required by Intel's PXA27x Processor
family developer's guide, chapter 3.5.5, table 3.7 (clock
frequencies).
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add standard GPIO routings for LCD panels, taken from linux
kernel.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As pxafb can rely on a PWM to control backlight, and because
driver dependencies are hard to deal with, remove automatic
enable of PXAFB on probe.
The user should in its environment do a :
- fb0.enable=1
This way, the PWM has been probed and is ready to work, and
the pxafb backlight control works.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add PXA embedded pulse width modulator support. The PWM can
generate signals from 49.6kHz to 1.625MHz.
The driver is for pxa2xx family. The pxa3xx was not handled yet.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Current message indicating that SD card isn't
mounted is misleading if the card has only one
partition.
Updated the message to indicate that mounting
the specific partition failed.
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some variants of the i.MX53 do not allow to run at 1GHz, so
pass a cpu frequency parameter to the lowlevel init function.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Whether the controller works in 8bit mode is not only dependent
on the controller but also on the board having wired up 8 data
lines, so put a capabilities field in platform data.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Remove what is an apparently valueless Kconfig variable HAS_OMAP_NAND.
A search of the entire source tree shows:
$ grep -r HAS_OMAP_NAND *
arch/arm/mach-omap/Kconfig: select HAS_OMAP_NAND
arch/arm/mach-omap/Kconfig: select HAS_OMAP_NAND
arch/arm/mach-omap/Kconfig: select HAS_OMAP_NAND
arch/arm/mach-omap/Kconfig: select HAS_OMAP_NAND
arch/arm/mach-omap/Kconfig:config HAS_OMAP_NAND
arch/arm/configs/phycard_a_l1_defconfig:CONFIG_HAS_OMAP_NAND=y
$
where the definition of that variable is simply:
config HAS_OMAP_NAND
bool
so it seems pretty clear it can be removed as nothing is using it.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without the proper OMAP3 or OMAP4 dependency directives, you get the
wrong list of choices displayed based on which OMAP variant you pick.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
At least ARM allows us to dump the stack, but we currently
have no prototype for this. Add a dump_stack prototype and
provide a static inline function for architectures without
stack dump support. Also, call dump_stack() in panic() to
provide more information in the case of a panic.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
hang() only outputs 'reset the board' whereas panic
can be passed a string which we can use to output
some more information what is happening.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Otherwise the kernel would not register the nand partitions.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Extend DCD table and low level init routines. Add barebox SDRAM
device. Also, fix the memory size for bank 0 to 128MB. It was
accidently changed to 124MB here:
commit f928efa818
Author: Sascha Hauer <s.hauer@pengutronix.de>
Date: Tue Jul 19 09:58:32 2011 +0200
add a add_mem_device function
Add a helper function for boards to register their memory
devices. This makes the board code smaller and also helps
getting rid of map_base and struct memory_platform_data.
And switch all of the memory to it
Signed-off-by: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this allow to check we do not exceed the size of the SRAM as example
introduce BAREBOX_MAX_BARE_INIT_SIZE the maximum size of bare_init
this will allow your bare_init will fit in SRAM as example
ARCH can overwrite it via ARCH_BAREBOX_MAX_BARE_INIT_SIZE
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Adding overlay support for phyCORE-i.MX35.
Also move the TEXT_BASE to leave enough space for the overlay image
at the end of the RAM.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Adding overlay support for i.MX3 sdc.
Foreground channel only works when background is also enabled.
The foreground video mode is always the same as the background.
Also added alpha command to set the alpha value of the foreground.
Tested on a phyCORE-i.MX35.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added num_modes to all imx_ipu_fb_platform_data structs.
Removed defines for pcm043 to choose display.
We may switch this during runtime now.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Make support of multiple video modes possible for i.MX3 boards.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
board_init was moved to pure_initcall. broken since:
commit 0adce7ec68
Author: Sascha Hauer <s.hauer@pengutronix.de>
Date: Sun Jan 15 21:11:17 2012 +0100
ARM omap3: move board_init to pure_initcall
board_init initializes the mux and sdram. For both there is no
need to configure this so early. Move the code to a pure_initcall
and remove the surrounding unneeded code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Juergen Kilb <J.Kilb@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
since commit 494a12f703
platform lowlevel init was moved to mach-omap.
Signed-off-by: Juergen Kilb <J.Kilb@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
since commit ae2ac15105
a_init was renamed to omap3_core_init and called from board code.
Signed-off-by: Juergen Kilb <J.Kilb@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
board_init is now called omap3_board_init. broken since:
commit 494a12f703
Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Sat Jan 14 15:51:05 2012 +0100
omap3: move platform lowlevel init to mach-omap
this will allow to switch omap3 to standard organisation
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This function consists of only inline asm statements, so
use assembly in the first place. Also makes sure that the
function is compiled in arm mode.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
No need to do this so early. We can't print anything right
now anyway, so there is no need to setup vectors.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
There is no need to call a_init before relocation, so rename
the function to omap3_core_init and call it from board code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
board_init initializes the mux and sdram. For both there is no
need to configure this so early. Move the code to a pure_initcall
and remove the surrounding unneeded code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
Setting up the clocks does not work when the stack is in SDRAM.
Moving the stack to SRAM allows us to do the lowlevel clock setup
later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
The X-loader startup relocates to SRAM anyway, so there
is no need to be runnable from flash for the clock code.
This config is disabled in all defconfigs anyway, so remove
it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sanjeev Premi <premi@ti.com>
this will allow to create it's own env/config
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this will allow to create it's own env/config
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this will allow to create it's own env/config
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this will allow to switch omap3 to standard organisation
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
in commit commit f60f6c58e
atmel_mci: check for device id we use to address the right slot
the driver use the dev_id to detect the slot which is wrong on 9263 as we have
2 devices with 2 slots
use slot_b paramter to specify the slot as done in linux
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this will allow to configure the nand as example
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When CONFIG_OMAP_BUILD_IFT is selected, the
target image name was set to "barebox.bin.ift".
This file must be renamed "MLO" before it can
be used on the SD card.
Make this as default behavior.
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Enable the flag HAVE_NOSHELL to allow first stage
bootloader to be built for this board.
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The base address passed for device "omap-hsmmc" was
incorrectly passed as OMAP_I2C1_BASE and the base
address for device "i2c-omap" was hardcoded to
0x4809C000 which, in fact, refers to OMAP_MMC1_BASE.
Similarly, in call to add_usb_ehci_device(), addition
is not required if right base address is used.
In fact, 0x48064700 (used as base in the addition)
falls in the OHCI Address space.
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The config option CONFIG_GPMC is renamed to
CONFIG_OMAP_GPMC as result of this commit:
819f416b86
Still, sources continue to use CONFIG_GPMC.
Fix it.
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
use ds3 for heartbeat and ds5 for dfu
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
on 9269 and 9g20 the sram are mirrored at then of the bank so we can join them
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without num_modes the imx fb driver won't work. Specify this
in the boards and also bail out in the driver when num_modes
is unspecified.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Using SSP1 since this is the default configuration.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this was introduced in "6b3e01a arm: eukrea: Fix compilation warning"
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
enable serial and dfu at the same time
senario if the usb device is plugged and the BP is not pressed at boot time
during 5s the usbserial will be enable
disable zlib support to fit in the 256K
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The lowlevel init function was a 1:1 copy from the babbage
baord, so it should be safe to switch to the generic C
lowlevel init.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Eric Benard <eric@eukrea.com>
Reimplement the code from lowlevel.S in C. It is run
from SDRAM anyway, so we can safely do this initialization
in a regular barebox environment instead in Assembly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- move code which can be shared between i.MX53 and i.MX51
to a common file
- rename mx53_init_lowlevel to imx53_init_lowlevel
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
a) use the more CPU specific S3C* macro names
b) move the register description out of the way, as more recent CPUs using a
different layout and more features
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Keep common code in the MACH instead of re-inventing it in each platform.
Also use S3C* macros for all memory related register.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The UART is one of the units which differs only slightly inside the S3C family.
Prepare this driver to share it with more recent CPUs.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
After separation and after all S3C macros are now present, change the driver
to be more generic for future additions.
The timer registers in the S3C24XX family are only 16 bit wide. But these
registers can be read and written in a 32 bit manner. This is important to share
code with more recent CPUs which comes with 32 bit registers.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Most members of the S3Cxxxx family share similar timer units. But they are
not really register compatible. To reflect this, use a separate name space for
the S3C family.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch just move the clocksource functions out of the generic.c source file
to handle it on a per CPU base later on.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There are major differences in the clock tree of the S3C24xx family and the
more recent CPUs of the S3C family. Keep the S3C24XX clock routines separate to
avoid an ifdef hell. But also use generic function names to be able to
share drivers among the S3C family.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This LCD driver is for the LCD controller in the S3C2410/S3C2440 CPUs only.
Change its name to reflect its usage and free the way to add LCD controller
drivers for more recent Samsung CPUs.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The aready existing NAND controller driver in Barebox is for the S3C24XX family
only. Change the name of the file to reflect this fact (and free the way to add
more recent Samsung NAND controllers)
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Start with renaming files to share them in the S3C CPU family,
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The S3Cxxxx family consists of ARMv4, ARMv5 and ARMv6 types of CPU cores. The
S3C24xx sub family is only one of it. To be able to handle all CPUs in one mach
directory, use a more generic name for it.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds basic support for the mx28-evk board. Debug UART, MMC and FEC
have been successfully used.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Recent gcc generates code with unaligned access when architecture
supports it. Setting A bit unconditionally causes data-aborts on such
code rendering barebox unusable.
Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When executing 'bl' in inline assembler, the 'lr' register must be
marked as clobbered too.
Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
detect it at boot time
if the user button is pressed 5s and the vbus is 1 start the dfu
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
drop irq id and rebase instead of of offset
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this device controller is present on rm9200/9260/9g20/9261/9g10/9263
the 9g45 use an other IP
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Support the setup of the mmc voltage, when booting OMAP4 with twl6030
from nand.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added i2c support for omap4. Tested on pcm049.
Driver based on linux kernel implementation.
Also added a shift to access 16-bit registers
to make support for OMAP730/850 possible.
If accessing a non existing slave the bus will go into arbitration mode.
It's unable to recover from it.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add a function to remap an IO range into a virtual addresses
range. This is particulary usefull for the few devices
mapped at physical address 0, as the MTD boot devices.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The icache command is unused. Instead of adding it to compilation
again, remove it as the cpuinfo command provides the same information.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
configure BP4 and BP3
use BP4 to start DFU mode at boot
if BP4 is pressed at boot time and maintain at least 5s the dfu is started
otherwise we boot normaly
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>