Commit Graph

13 Commits

Author SHA1 Message Date
Steve Sakoman
353ffa7f93 omap: overo: Disable pull-ups on camera PCLK, HS and VS signals
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>
2011-10-27 21:56:34 +02:00
Steve Sakoman
14aa545c45 omap: overo: Configure mux for gpio10
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>
2011-10-27 21:56:34 +02:00
Philip Balister
cdbc2773c2 overo: Set IEN on GPMC_CLK to support synchronous clocking.
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>
2011-09-30 22:00:53 +02:00
Philip Balister
5213d24d7b OMAP3: Overo: Update GPMC timing for ethernet chip
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>
2011-09-30 22:00:53 +02:00
Steve Sakoman
d64b5b8915 ARMV7: OMAP3: Add expansion board detection for Overo
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>
2010-11-04 15:27:06 -04:00
Steve Sakoman
a06e1629f4 ARMV7: OMAP: Overo: Autodetect presence/absence of transceiver on mmc2
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>
2010-09-08 14:51:45 -04:00
Steve Sakoman
ba9a11e4ea ARMV7: OMAP: Configure Overo's second network chip
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>
2010-09-08 14:50:47 -04:00
Steve Sakoman
c2d5b34120 ARMV7: OMAP: Add board revision detection for Overo
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>
2010-09-08 14:50:38 -04:00
Steve Sakoman
9314961329 ARMV7: OMAP: Enable input driver on Overo's MMC1_CLK and MMC3_CLK pinmux setup
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>
2010-09-08 14:50:27 -04:00
Scott Ellis
093d6018cf Overo GPMC registers
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>
2010-02-12 12:31:53 -06:00
Olof Johansson
df3826262c TI: OMAP3: Overo Tobi ethernet support
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>
2009-10-13 06:17:38 -05:00
Olof Johansson
fc9165fdb3 OMAP3: Clean up whitespace in mux configs
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>
2009-10-13 06:17:36 -05:00
Jean-Christophe PLAGNIOL-VILLARD
127f9ae575 omap3: move the other boards to board/
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-09-05 01:33:12 +02:00