U-Boot has been broken on Overo boards since commit
a6b541b090.
This is because the gd pointer is not set early enough anymore,
such that the i2c_set_bus_num in get_board_revision can safely
execute. This results in a console hang at SPL and the boot does
not proceed.
This piece of code is anyway necessary only for really old Overo
boards with revision numbers <= 2410 and not required for the newer
boards. For these older boards, u-boot v2014.10 still works fine.
Signed-off-by: Arun Bharadwaj <arun@gumstix.com>
This separates the SPL-specific code from the u-boot-specific code for
the Overo board following the discussion at
http://lists.denx.de/pipermail/u-boot/2015-April/211622.html
The code is split up into spl.c, overo.c and common.c (which
has the code common to both)
Signed-off-by: Arun Bharadwaj <arun@gumstix.com>
The Gumstix Arbor43C expansion board [1] uses a customized device tree
file. When this expansion board is detected, load this file.
[1] https://store.gumstix.com/index.php/products/635/
Signed-off-by: Ash Charles <ashcharles@gmail.com>
Boards using the TWL4030 regulator may not all use the LDOs the same way
(e.g. MMC2 power can be controlled by another LDO than VMMC2).
This delegates TWL4030 MMC power initializations to board-specific functions,
that may still call twl4030_power_mmc_init for the default behavior.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Fix omap3_evm warning, add twl4030.h]
Signed-off-by: Tom Rini <trini@ti.com>
Adjust the configuration for the am33xx boards, including beagleboard,
to use driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Tom Rini <trini@ti.com>
Separate overo module and expansion board MUX configuration. This allows
an foreign expansion board to use the boot loader without any adaption.
It only needs to save the expansion name in the EEPROM to load a
specific device tree.
Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
Move ethernet setup to the board_eth_init function and select
the available network devices via expansion id.
Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
Now the types of CONFIG_SYS_{ARCH, CPU, SOC, VENDOR, BOARD, CONFIG_NAME}
are specified in arch/Kconfig.
We can delete the ones in arch and board Kconfig files.
This commit can be easily reproduced by the following command:
find . -name Kconfig -a ! -path ./arch/Kconfig | xargs sed -i -e '
/config[[:space:]]SYS_\(ARCH\|CPU\|SOC\|\VENDOR\|BOARD\|CONFIG_NAME\)/ {
N
s/\n[[:space:]]*string//
}
'
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Becuase the board select menu in arch/arm/Kconfig is too big,
move the OMAP3 board select menu to omap3/Kconfig.
Move also common settings (CONFIG_SYS_CPU="armv7" and
CONFIG_SYS_SOC="omap3
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Tom Rini <trini@ti.com>
We have switched to Kconfig and the boards.cfg file is going to
be removed. We have to retrieve the board status and maintainers
information from it.
The MAINTAINERS format as in Linux Kernel would be nice
because we can crib the scripts/get_maintainer.pl script.
After some discussion, we chose to put a MAINTAINERS file under each
board directory, not the top-level one because we want to collect
relevant information for a board into a single place.
TODO:
Modify get_maintainer.pl to scan multiple MAINTAINERS files.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Suggested-by: Tom Rini <trini@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit adds:
- arch/${ARCH}/Kconfig
provide a menu to select target boards
- board/${VENDOR}/${BOARD}/Kconfig or board/${BOARD}/Kconfig
set CONFIG macros to the appropriate values for each board
- configs/${TARGET_BOARD}_defconfig
default setting of each board
(This commit was automatically generated by a conversion script
based on boards.cfg)
In Linux Kernel, defconfig files are located under
arch/${ARCH}/configs/ directory.
It works in Linux Kernel since ARCH is always given from the
command line for cross compile.
But in U-Boot, ARCH is not given from the command line.
Which means we cannot know ARCH until the board configuration is done.
That is why all the "*_defconfig" files should be gathered into a
single directory ./configs/.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
The u-boot Overo board actually supports both Overo (OMAP35xx)
and Overo Storm (AM/DM37xx) COMs with a range of different expansion
boards. This provides a mechanism to select the an appropriate device
tree file based on the processor version and, if available, the
expansion board ID written on the expansion board EEPROM. To match the
3.15+ kernels, fdtfile names have this format:
"omap3-overo[-storm]-<expansion board name>.dtb"
By default, we use "omap3-overo-storm-tobi.dtb".
Signed-off-by: Ash Charles <ashcharles@gmail.com>
Conflicts:
include/configs/omap3_overo.h
Add EEPROM ID switches for Alto35, Arbor43C, Stagecoach, Thumbo, and
Turtlecore Gumstix Overo expansion boards.
Signed-off-by: Ash Charles <ash@gumstix.com>
Gumstix Overo COMs with board revision 0x4 use a different Wifi and
Bluetooth module: Wi2Wi's W2CBW0015. No other code changes are required
in u-boot---just handling of this particular board revision.
Signed-off-by: Ash Charles <ashcharles@gmail.com>
omap_gpmc.h is a generic header used by OMAP NAND driver for all TI platfoms.
Hence this file should be present in generic folder instead of architecture
specific include folder.
Build tested using: ./MAKEALL -s am33xx -s omap3 -s omap4 -s omap5
Signed-off-by: Pekon Gupta <pekon@ti.com>
- add omap24xx driver to new multibus/multiadpater support
- adapted all config files, which uses this driver
Tested on the am335x based siemens boards rut, dxr2 and pxm2
posted here:
http://patchwork.ozlabs.org/patch/263211/
Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Tom Rini <trini@ti.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Steve Sakoman <sakoman@gmail.com>
Cc: Thomas Weber <weber@corscience.de>
Cc: Tom Rix <Tom.Rix@windriver.com>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Luca Ceresoli <luca.ceresoli@comelit.it>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Ilya Yanok <yanok@emcraft.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Peter Barada <peter.barada@logicpd.com>
Cc: Nagendra T S <nagendra@mistralsolutions.com>
Cc: Michael Jones <michael.jones@matrix-vision.de>
Cc: Raphael Assenat <raph@8d.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Stefano Babic <sbabic@denx.de>
Gumstix uses 200Mhz RAM on revision 1, 2 & 3 COMs, so use 200MHz
timings rather than 165MHz. Based on 6cf8bf44b1f8550e12f7f2a16e01890e5de8443d
Signed-off-by: Ash Charles <ashcharles@gmail.com>
arch/arm/include/asm/arch-am33xx/omap_gpmc.h and
arch/arm/include/asm/arch-omap3/omap_gpmc.h are almost the same, consolidate
the common parts into a new header.
Introduce a new asm/omap_gpmc.h which defines the command part and pulls in
the architecture specific one.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
Instead of passing individual registers by value to board_get_mem_timings,
pass a board_mem_timings structure pointer for the board files to fill in.
Pass same structure pointer to write_sdrc_timings. This saves about
90 bytes of space in SPL.
Signed-off-by: Peter Barada <peter.barada@logicpd.com>
Only omap4/5 currently have a meaningful set of display text and overo
had been adding a function to display nothing. Change how this works to
be opt-in and only turned on for omap4/5 now.
Signed-off-by: Tom Rini <trini@ti.com>
Add parameters to the OMAP MMC initialization function so the board can
mask host capabilities and set the maximum clock frequency. While the
OMAP supports a certain set of MMC host capabilities, individual boards
may be more restricted and the OMAP may need to be configured to match
the board. The PRG_SDMMC1_SPEEDCTRL bit in the OMAP3 is an example.
Signed-off-by: Jonathan Solnit <jsolnit@gmail.com>
* implementation based on ti beagleboard/omap3evm
* timing data and i2c workaround for revision 0 boards taken from x-loader
* run-tested with overo revision 0 and 1 / boot from NAND and SDcard
* run-tested with x-loader
Signed-off-by: Andreas Müller <schnitzeltony@gmx.de>
Signed-off-by: Tom Rini <trini@ti.com>
gpio_free() should not have the side effect of setting the line to input since this prevents the gpio command from being able to set a line as output.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
By moving the CS4 configuration into the board specific configuration, it
is left free for custom carrier boards. The USRP-E1XX series uses
CS4 to control access to an FPGA, so without this patch the device driver
cannot claim CS4.
Signed-off-by: Philip Balister <philip@opensdr.com>
Tested-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
The level shifters used on the Caspa camera module have a 4k output
impedance. Combined with the 100uA pull-up resistors in the OMAP3,
this raises the ground level to 400mV. Adding crosstalk between the
pixel clock and the HS/VS signals on the flat cable (a ground line in
between would have been nice), logic 0 levels can raise up to 650mV.
This exceeds the camera input pins VIL maximum voltage. This change
suggested-by Laurent Pinchart
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This pad was previously configured for sysclkout_1. This patch changes
the configuration to gpio_10 to reduce radiated noise from the 26Mhz
clock, as well as make the pin more generally useful.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Acked-by: Philip Balister <philip@opensdr.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
The top level Makefile does not do any recursion into subdirs when
cleaning, so these clean/distclean targets in random arch/board dirs
never get used. Punt them all.
MAKEALL didn't report any errors related to this that I could see.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Without this change CS's configured for synchronous clocking cannot
read data.
Signed-off-by: Philip Balister <philip@opensdr.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
The existing timing does not quite meet the minimum requirements
in the LAN9221 datasheet. The timing in this patch solves problems
noticed on some parts. The patch also combines the CS configuration
for the overo and igep0020 boards per request.
Signed-off-by: Philip Balister <philip@opensdr.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
It can be optimised out by the compiler otherwise resulting
in obscure errors like a board not booting.
This has been documented in README since 2006 when these were
first fixed up for GCC 4.x.
Signed-off-by: John Rigby <john.rigby@linaro.org>
Fix some additional places.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-By: Albert ARIBAUD <albert.aribaud@free.fr>
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
Overo expansion boards contain an i2c eeprom to identify themselves.
This patch adds code to read and parse the eeprom contents. It prints
the expansion board name and revision and modifies environment variables
as appropriate.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.
Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.
Signed-off-by: Wolfgang Denk <wd@denx.de>
An upcoming version of Overo uses a Wifi/BT module with 1.8V signaling,
eliminating the need for an external transceiver to handle the level
shifting. This patch detects whether an external transceiver is present
and adjusts the pinmux settings as appropriate.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Confiures GPMC timings for both chips and also configures pinmux
for GPIO_65, which is used as the interrupt signal for the second chip
Signed-off-by: Scott Ellis <scott@jumpnowtek.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
The latest Overo COM modules encode their revision number on
GPIOs 115, 113, and 112. All boards to date have no pullups on these pins
and hence appear as revision 0.
This patch reads and prints the revision information.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This patch modifies the pinmux setup for MMC1_CLK and MMC3_CLK to enable
the input driver. MMC2_CLK was already properly configured.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
