Barebox crashes during startup, because the SDRAM controller has not been
initialized.
Signed-off-by: Jaccon Bastiaansen <jaccon.bastiaansen@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The PLL setup occasionally fails when the setup code runs
from SDRAM, so copy a little assembler helper function to
SRAM and execute it there.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
edb93xx SDRAM initialization: Issue a precharge all command before forcing the
precharge of all SDRAM banks. Write to the SDRAM in order to force a precharge,
reading causes the edb93xx boards to hang
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Previous code ran the edb9302(a) boards with the PLL same settings as the
edb9301, at 166MHz core and 66MHz system bus clock. In difference to the edb9301
board the edb9302(a) is equipped with an EP9302 processor, which can be clocked
at higher rates than the EP9301. Therefore we can configure the edb9302(a) with
the same PLL settings as the other non-edb9301 boards, namely at 200MHz for
the core and 100MHz for the system bus clock.
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Before programming the SDRAM mode registers, mode register update mode must be
selected by setting the MRS bit and clearing INIT in GlConfig
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
edb93xx: The purpose of early_udelay() is to provide delay functionality in the
early board setup, when the stack isn't set up yet. With some compiler versions
the current implementation makes use of the stack and ends up crashing. Fix this
by removing an explicit division from early_udelay()
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
edb93xx: according to the datasheet UART1 needs to be enabled explicitly
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This file has no useful things for others than the driver,
so move it next to the driver and remove the corresponding
include from other files.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows to properly setup the voltage on LCD pins at boot.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This code adds a generic x86 platform, enabling barebox to act as a
bootloader like 'GRUB'. Very minimalistic, yet. Supports only a serial console
and is tested with QEMU only.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fix a typo in documentation file about adapting a new board which
misnames the linker script template file
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
--
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for OMAP3EVM. It does
the following:
- Adds OMAP3EVM as an option in Kconfig.
- Adds choice for UART1/UART3 for serial console
- Minimal initializations for the board
- Updates to makefile
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Nishanth Menon wrote:
> no signed off by and no diffstat?
Ups.
> can you use git-format-patch to send please? it is easier to review.
Sure. Here it comes:
jbe
------8<---------8<---------8<---------8<---------8<---------8<----
Subject: [PATCH] Some doxygen related fixes:
- fix a few doxygen comments that are used in a wrong way
- move some pages and their content to a better place in the
generated documentation
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The PLL initialisation does not work properly if run from
SDRAM. Move the initialisation code to lowlevel init which
is run in NFC RAM.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- Add support for booting from NAND
- Add support for internal Boot mode
- Add I2C PMIC support
- Enable FEC Ethernet controller
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The SOM can integrate a 16550 Quad UART which can be used
for serial console.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
64MB strataflash consist in 2x256Mb flashs. So we must declare
2 cfi_flash in order to have both 256Mb flash geometry properly
detected. For flash <= 32 MB we prefer not to register the second
cfi_flash which would be an alias of the first one.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add a menu entry and proper settings for 128MB and 256MB
RAM size.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
instead of select first the board which will select the arch, now
first choice the arch to filter the possible boards
as it's already done for omap
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
There is no really generic way to configure the S3C2440 CPU with fits to all
possible baseboards. This patch separates things into the CPU card related and
baseboard related things. This ensures to be able to configure things for
each possible baseboard without modifying/patching the main card source.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
The generic A9M2440 comes in many SDRAM variantes. Two GPIO pins describing
the populated SDRAM devices. This patch adds some code to query the setting
and setup a correct SDRAM configuration out of four possible variants.
Due to the lack of hardware the 16 MiB and 128 MiB case is untested yet.
Due to the 32 MiB configuration we must link the u-boot-v2 always to
address 0x31fc0000. Even for the 64 MiB and 128 MiB configuration.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
The generic A9M2440 comes with a CS8900 network controller at chip select 5.
There are custom specific variants available without this device, but this
case will be handled in a separate baseboard file.
The current Linux-2.6.31 CS8900 network driver is a very poor piece of
code. It needs some patches to also work with this platform. So, I add
two kernel parameters to be able to use this network device also in the NFS
rootfs case (to setup media and MAC).
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
The generic A9M2440 comes in many variantes. Mostly with different SDRAM
and NAND populations. This patch reflects and describes these variants.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Adapt the pcm043 plattform to be able to boot from NOR and NAND
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Boot on this board was broken following ram updates in u-boot
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
No need to check for maximum argument counts. The commands are
safe to be called with more arguments, so lets safe some bytes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Jaccon Bastiaansen
Sascha Hauer
Matthias Kaehlcke
Marc Kleine-Budde
Eric Benard
Juergen Beisert
Sanjeev Premi
Anand Gadiyar
Jean-Christophe PLAGNIOL-VILLARD
Juergen Beisert
Sascha Hauer
Juergen Beisert