David Binderman ran the sourceforge tool cppcheck over the source code of the
new Linux kernel 2.6.33-rc6:

[./arm/mach-omap2/mux.c:492]: (error) Buffer access out-of-bounds

13 characters + 1 digit + 1 zero byte is more than 14 characters.

Also add a comment on mode0 name length in case new omaps
start using longer names.
Reported-by: NDavid Binderman <dcb314@hotmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

3630 has more mux signals than 34xx. The additional pins
exist in omap36xx_cbp_subset, but are not initialized
as the superset is missing these offsets. This causes
the following errors during the boot:

mux: Unknown entry offset 0x236
mux: Unknown entry offset 0x22e
mux: Unknown entry offset 0x1ec
mux: Unknown entry offset 0x1ee
mux: Unknown entry offset 0x1f4
mux: Unknown entry offset 0x1f6
mux: Unknown entry offset 0x1f8
mux: Unknown entry offset 0x1fa
mux: Unknown entry offset 0x1fc
mux: Unknown entry offset 0x22a
mux: Unknown entry offset 0x226
mux: Unknown entry offset 0x230
mux: Unknown entry offset 0x22c
mux: Unknown entry offset 0x228

Fix this by adding the missing offsets to omap3 superset.
Note that additionally the uninitialized pins need to be
skipped on 34xx.

Based on an earlier patch by Allen Pais <allen.pais@ti.com>.
Reported-by: NAllen Pais <allen.pais@ti.com>
Signed-off-by: NAllen Pais <allen.pais@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Make the omap_mux_read and write available for board code,
and rename omap_mux_set_board_signals into omap_mux_write_array.
Also add the related prototypes and comments into mux.h.

In some cases we want to change the signals dynamically,
mostly for power management.

Note that we cannot use the signal names as they are set
__init to save memory.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Looks like cmdline muxing got broken at some point when we
decided to limit muxing to __init code. Currently omap_mux_entry
list is not yet initialized when we try to initialize cmdline
muxing.

Fix this by calling omap_mux_init_list() before calling
omap_mux_set_cmdline_signals().
Reported-by: NPhilip Balister <philip@balister.org>
Tested-by: NPhilip Balister <philip@balister.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Otherwise bringing up new boards can be harder:

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1]
last sysfs file:
Modules linked in:
CPU: 0    Not tainted  (2.6.33-rc2-00015-g0bc9c93-dirty #37)
PC is at omap_mux_init+0xa4/0x3d8
LR is at omap_mux_init+0x3c/0x3d8
...
Signed-off-by: NTony Lindgren <tony@atomide.com>

Remove old mux code for 34xx
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add debugfs support for new mux code
Signed-off-by: NTony Lindgren <tony@atomide.com>

Initially only for 34xx. This code allows us to:

- Make the code more generic as the omap internal signal
  names can stay the same across omap generations for some
  devices

- Map mux registers to GPIO registers that is needed for
  dynamic muxing of pins during off-idle

- Override bootloader mux values via kernel cmdline using
  omap_mux=some.signa1=0x1234,some.signal2=0x1234

- View and set the mux registers via debugfs if
  CONFIG_DEBUG_FS is enabled

Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

intoduce omap_mux_{read,write}
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Added runtime programming for the differences in EHCI interface between
OMAP3EVM revisions (Rev >= E) and (Rev < E).

Changes:
	- EHCI PHY reset GPIO pin is 21 on Rev >= E while Rev < E
	  uses GPIO pin 135.
	- Rev >= E uses EHCI Vbus enable GPIO22 line.
	- Rev >= E uses GPIO61 to select EHCI port either on main board or
	  on Mistral Daughter Card (MDC). OMAP3EVM Rev < E doesn't have
	  EHCI port on main board.
	- Currently GPIO61 it programmed to enable EHCI port on main
	  board only.
Signed-off-by: NAjay Kumar Gupta <ajay.gupta@ti.com>

Add support for omap hsmmc2 8-bit mux configuration.
Signed-off-by: NMadhusudhan Chikkature <madhu.cr@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Move the remaining headers under plat-omap/include/mach
to plat-omap/include/plat. Also search and replace the
files using these headers to include using the right path.

This was done with:

#!/bin/bash
mach_dir_old="arch/arm/plat-omap/include/mach"
plat_dir_new="arch/arm/plat-omap/include/plat"
headers=$(cd $mach_dir_old && ls *.h)
omap_dirs="arch/arm/*omap*/ \
drivers/video/omap \
sound/soc/omap"
other_files="drivers/leds/leds-ams-delta.c \
drivers/mfd/menelaus.c \
drivers/mfd/twl4030-core.c \
drivers/mtd/nand/ams-delta.c"

for header in $headers; do
	old="#include <mach\/$header"
	new="#include <plat\/$header"
	for dir in $omap_dirs; do
		find $dir -type f -name \*.[chS] | \
			xargs sed -i "s/$old/$new/"
	done
	find drivers/ -type f -name \*omap*.[chS] | \
		xargs sed -i "s/$old/$new/"
	for file in $other_files; do
		sed -i "s/$old/$new/" $file
	done
done

for header in $(ls $mach_dir_old/*.h); do
	git mv $header $plat_dir_new/
done
Signed-off-by: NTony Lindgren <tony@atomide.com>

Earlier BeagleBoards were using pad AH8 muxed to GPIO29 for MMC write-protect.
However, this signal has been changed to pad AG9 in board revision C2.

Fix this by adding mux configuration for pad AG9, runtime check for board
revisions and set the gpio number and pad muxing accordingly.
Signed-off-by: NJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

GPIO135 is used as EHCI (port2) phy reset pin on Multi Media Daughter card
connected to OMAP3EVM.
Signed-off-by: NAjay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch changes for setting the padconf value for sys_nirq line
which is connected to T2 INTR1.  This will fix the T2 keypad wakeup
issue on OMAP3 SDP.
Signed-off-by: NTeerth Reddy <teerth@ti.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>

For OMAP3 add MMC1 MMC2 pin mux MMC3 mux is not added as there are
multiple configurations possible, so the muxing is left to be done
in board file.
Signed-off-by: NVikram Pandita <vikram.pandita@ti.com>
Signed-off-by: NChikkature Rajashekar <madhu.cr@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patches ensures the MUX settings are correct for the SDRC
CKE signals to SDRAM. This allows the self-refresh to work when
2 chip-selects are in use.

A warning is thrown away in case the initial muxing is incorrect,
in order to track faulty or old-dated bootloaders.
Note: The CONFIG_OMAP_MUX and CONFIG_OMAP_MUX_WARNINGS options
must be enabled for the mux code to have effect.
Signed-off-by: NJean Pihet <jpihet@mvista.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

This patch adds several new GPIO pins and updates
the pin naming comments.

The patch is based on earlier patches on linux-omap
list by Manikandan Pillai <mani.pillai@ti.com>,
Vaibhav Hiremath <hvaibhav@ti.com> and
David Brownell <dbrownell@users.sourceforge.net>.
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch adds some new pin multiplexing options
for McBSP and McSPI from Arun KS. Also add two more
GPIOs from David Brownell.

Also mark omap24xx_cfg_reg() static.
Signed-off-by: NArun KS <arunks@mistralsolutions.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add minimal omap3430 support based on earlier patches from
Syed Mohammed Khasim. Also merge in omap34xx SRAM support
from Karthik Dasu and use consistent naming for sram init
functions.

Also do following changes that make 34xx support usable:

- Remove unused sram.c functions for 34xx

- Rename IRQ_SIR_IRQ to INTCPS_SIR_IRQ and define it locally
  in entry-macro.S

- Update mach-omap2/io.c to support 2420, 2430, and 34xx

- Also merge in 34xx GPMC changes to add fields wr_access and
  wr_data_mux_bus from Adrian Hunter

- Remove memory initialization call omap2_init_memory() until
  until more generic memory initialization patches are posted.
  It's OK to rely on bootloader initialization until then.
Signed-off-by: NSyed Mohammed, Khasim <khasim@ti.com>
Signed-off-by: Karthik Dasu<karthik-dp@ti.com>
Signed-off-by: NAdrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch adds pinmux support for OMAP3. Incorporated review comments
from Tony to make mux_value as bit mask. Tested on 3430SDP.

Also merge in adding of I2C pins from Jarkko Nikula.
Acked-by: NAnand Gadiyar <gadiyar@ti.com>
Signed-off-by: NVikram Pandita <vikram.pandita@ti.com>
Signed-off-by: NJarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

New struct omap_globals contains the omap processor specific
module bases. Use omap_globals to set the various base addresses
to make detecting omap chip type simpler.

Also introduce OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS for future multi-omap
patches.
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch changes 24xx to use new register access, except for clock
framework. Clock framework register access will get updates in the
next patch.

Note that board-*.c files change GPMC (General Purpose Memory Controller)
access to use gpmc_cs_write_reg() instead of accessing the registers
directly. The code also uses gpmc_fck instead of it's parent clock
core_l3_ck for GPMC clock.

The H4 board file also adds h4_init_flash() function, which specify the
flash start and end addresses.

Also note that sleep.S removes some unused registers addresses.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Misc clean-up for the mux code and remove some unnecessary
ifdefs. Patch changes debug function so it can be used on
both 24xx and 34xx.

Changes are mostly for omap2, but patch also cleans up some
omap1 and common mux code.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add new pin multiplexing configurations
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use omap processor specific function depending on system type.
Based on an earlier patch by Klaus Pedersen <klaus.k.pedersen@nokia.com>.
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch changes pin multiplexing init to allow registering
custom function. The omap_cfg_reg() func will be split into
omap processor specific functions in later patch.

This is done to make adding omap3 pin multiplexing easier.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Tabify mux.c, no functional changes.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add some OMAP 24xx pin mux declarations to support:

 - TUSB 6010 EVM (on H4)
 - All three full speed USB ports
 - GPIOs used with USB0 on Apollon and H4

For OMAP2, issue MUX_WARNINGS and debug messages correctly; and make the
message look more like the OMAP1 message.
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Apollon board MMC supports on OMAP2

TODO:
        We have to check MMC on H4
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Signed-off-by: NJörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

Multiplexing for 24xx GPMC wait pin monitoring
Signed-off-by: NTony Lindgren <tony@atomide.com>

Mux updates for external DMA and GPIO. GPIO updates
by Igor Stoppa.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Patch from Tony Lindgren

Update OMAP pin multiplexing code from linux-omap tree.
This patch adds new pin configurations by various OMAP
developers, and suport for omap730 by Brian Swetland.
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Patch from Tony Lindgren

This patch adds support for omap24xx series of processors.
The files live in arch/arm/mach-omap2, and share common
files with omap15xx and omap16xx processors in
arch/arm/plat-omap.

Omap24xx support was originally added for 2.6.9 by TI.
This code was then improved and integrated to share common
code with omap15xx and omap16xx processors by various
omap developers, such as Paul Mundt, Juha Yrjola, Imre Deak,
Tony Lindgren, Richard Woodruff, Nishant Menon, Komal Shah
et al.
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>