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>
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>
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>
* 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>
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>
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>
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>
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>
Use appropriate GPMC timings for the LAN9221 controller on the
Gumstix Overo expansion boards not the values in arch-omap3/mem.h
which are for a different ethernet controller.
Signed-off-by: Scott Ellis <scott@jumpnowtek.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Use appropriate GPMC timings for the LAN9221 controller on the
Gumstix Overo expansion boards not the values in arch-omap3/mem.h
which are for a different ethernet controller.
Signed-off-by: Scott Ellis <scott@jumpnowtek.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Add setup for ethernet on Tobi, allowing kernel/ramdisk to be loaded
over tftp.
This also refactors the smc911x driver to allow for detecting when the
chip is missing. I.e. the detect_chip() function is called earlier and
will abort gracefully when the Chip ID read returns all 1's.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
Switch from space-based indentation to tab-based in mux configs, as pointed
out by WD at:
http://lists.denx.de/pipermail/u-boot/2009-September/061241.html
Nothing but whitespace changes in this patch (diff -w gives no output).
Signed-off-by: Olof Johansson <olof@lixom.net>
Add setup for ethernet on Tobi, allowing kernel/ramdisk to be loaded
over tftp.
This also refactors the smc911x driver to allow for detecting when the
chip is missing. I.e. the detect_chip() function is called earlier and
will abort gracefully when the Chip ID read returns all 1's.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
Switch from space-based indentation to tab-based in mux configs, as pointed
out by WD at:
http://lists.denx.de/pipermail/u-boot/2009-September/061241.html
Nothing but whitespace changes in this patch (diff -w gives no output).
Signed-off-by: Olof Johansson <olof@lixom.net>
The Beagle rev Cx and Overo boards are using both SDRC CSes. The MUX
setting is needed for the second CS clock signal to allow the 2 RAM
parts to be put in self-refresh correctly. This also works on rev B
Beagle boards with 128M of RAM.
From: Steve Sakoman <steve@sakoman.com>
From: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
The board-types defined in struct omap3_sysinfo seem to be
unused. The function display_board_info() is passed
board type as an argument; which is ignored.
This patch removes all uses of board-type, related definitions
and functions.
Signed-off-by: Sanjeev Premi <premi@ti.com>
A new Overo expansion board uses GPIO 14, 21, 22 and 23 for LED's and
switches. This patch changes the pinmux configuration for those pins.
They were previously set up for unused MMC3_DAT4-7.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
This patch adds OMAP3 cpu type auto detection based on OMAP3 register
and removes hardcoded values.
Signed-off-by: Steve Sakoman <sakoman@gmail.com>
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
* Make Overo GPIO114 an input for touchscreen PENDOWN
* Make Overo GPIO144-147 readable
* Make Overo EHCI pinmux match beagle rev c setup
* Adjust pinmux for SMSC911X network chip support
* Remove unnecessary GPIO setup
* Fix merge error in Makefile
Signed-off-by: Steve Sakoman <sakoman@gmail.com>
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
Add BeagleBoard support, common power code and README.
Signed-off-by: Jason Kridner <jkridner@beagleboard.org>
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
Arun Bharadwaj
Stefan Herbrechtsmeier
Ash Charles
Steve Sakoman
Wolfgang Denk
Andreas Müller
Steve Sakoman
Philip Balister
Philip Balister
Scott Ellis
Olof Johansson
Jean-Christophe PLAGNIOL-VILLARD
Dirk Behme
Sanjeev Premi