Fix mbox init for multi-omap
Signed-off-by: NTony Lindgren <tony@atomide.com>

Fix omap2_map_common_io for multi-omap
Signed-off-by: NTony Lindgren <tony@atomide.com>

Allows compiling in omap2 and omap3.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Make get_irqnr_and_base common for mach-omap2 multiboot

Thanks to a tip from Russell King <rmk+kernel@arm.linux.org.uk>,
this also optimizes the code for non-multiboot configurations by
using get_irqnr_preamble.

Note that this will only work currently for 24xx and 34xx.
Support for 44xx can be added later on for basic multiboot,
and similar patch should be done for mach-omap1/entry-macro.S.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Define arch_decomp_setup() the same way as some other
architectures do. Use arch_id to configure the debug uart
based on the machine_is by storing it into the uart
scratchpad register for DEBUG_LL code to use.
Signed-off-by: NTony Lindgren <tony@atomide.com>

This way we don't have conflicts with the defines
with compiling in multiple omaps. Set the addresses
for uarts in struct omap_globals for the early serial
init code.
Signed-off-by: NTony Lindgren <tony@atomide.com>

Otherwise more complicated uart configuration won't be possible.
We can use r1 for tmp register for both head.S and debug.S.

NOTE: This patch depends on another patch to add the the tmp register
into all debug-macro.S files. That can be done with:

$ sed -i -e "s/addruart,rx|addruart, rx/addruart, rx, tmp/"
	arch/arm/*/include/*/debug-macro.S
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed defconfig changes]
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed evm defconfig changes]
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@nokia.com>

The platform data allocated with kmalloc() will become unreachable once
the init is complete, so it should be freed. The problem was discovered
by kmemleak.
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NAdrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Currently the omap serial clocks are autoidled after 5 seconds.
However, this causes lost characters on the serial ports. As this
is considered non-standard behaviour for Linux, disable the timeout.

Note that this will also cause blocking of any deeper omap sleep
states.

To enable the autoidling of the serial ports, do something like
this for each serial port:

# echo 5 > /sys/devices/platform/serial8250.0/sleep_timeout
# echo 5 > /sys/devices/platform/serial8250.1/sleep_timeout
...
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

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>

Ensure valid clock pointer during GPMC init.  Fixes compiler
warning about potential use of uninitialized variable.
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Ensure valid base address during IRQ init.  Fixes compiler warning
about potential use of uninitialized variable.
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Convert CONFIG_ARCH_OMAP34XX to CONFIG_ARCH_OMAP3, and
CONFIG_ARCH_OMAP24XX to CONFIG_ARCH_OMAP2, in preparation for Tony's
multi-OMAP patches.

While here, update some copyrights, convert instances of "34xx" to
"3xxx" where applicable, and convert preprocessor directives of the
form

    #if defined(CONFIG_ARCH_OMAP2) | defined(CONFIG_ARCH_OMAP3)

to

    #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)

for standardization.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>

The macros defining the shift bits in registers for various
register bit fields are defined as 1 << n.
Instead define them as n. They can then be used as val << n.
The changes are generated by updating the script which autogenerates
the files modifed in the patch.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Rename the omap2_clk_init() in the OMAP2, 3, and 4 clock code to be
omap2xxx_clk_init(), omap3xxx_clk_init(), etc.  Remove all traces of
the (commented) old virt_prcm_set code from omap3xxx_clk_init() and
omap4xxx_clk_init(), since this will be handled with the OPP code that
is cooking in the PM branch.

After this patch, there should be very little else in the clock code
that blocks a multi-OMAP 2+3 kernel.  (OMAP2420+OMAP2430 still has some
outstanding issues that need to be resolved; this is pending on some
additions to the hwmod data.)
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Move all static functions up to the top of the file to match the
practice in other OMAP clock code.  Make omap3_noncore_dpll_program()
static (noted by sparse) and prepend an underscore to the function
name to mark that it is file-local.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

omap2_clk_prepare_for_reboot() is only applicable to OMAP2xxx chips,
so rename it to omap2xxx_clk_prepare_for_reboot() and only call it when
running on OMAP2xxx chips.  Remove the old stub in the OMAP3 clock code.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Now that almost all of the code has been removed from clock2xxx.c and
clock34xx.c, many of the includes are now unnecessary and can be removed.
While we're here, standardize the initial comment blocks.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Jouni Högander <jouni.hogander@nokia.com>

In the OMAP3xxx clock code, remove the #ifdef CONFIG_ARCH_OMAP3 in
clock34xx.c, since this file is only compiled for OMAP3xxx builds.  Also,
rename omap2_clk_arch_init in this file to omap3xxx_clk_arch_init() to
pave the way for multi-OMAP kernels.  Ensure that it is not executed
on non-OMAP3xxx systems.

In the OMAP2xxx clock code, rename omap2_clk_arch_init in this file to
omap2xxx_clk_arch_init() to pave the way for multi-OMAP kernels.
Ensure that it is not executed on non-OMAP2xxx systems.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Split the DPLL3 M2 divider clock functions out of clock34xx.c and move
them into mach-omap2/clkt34xx_dpll3m2.c. This is intended to make the
clock code easier to understand, since all of the functions needed to
manage the OMAP3 DPLL3 M2 divider are now located in their own file,
rather than being mixed with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG macro
can now be defined for the DPLL3 M2 clock alone.  This should reduce
unnecessary console noise when debugging DVFS.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be placed in the mach-omap34xx/
directory, rather than shared with other chip types that don't use this
clock type.

This patch also lays the groundwork to skip compilation of this
code on OMAP3 chips that don't support DVFS (e.g., AM35xx) via
the Makefile, rather than via #ifdefs.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Jouni Högander <jouni.hogander@nokia.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

omap2430_clk_i2chs_find_idlest() doesn't need to be compiled in on
non-2430 builds, so skip it in those cases to save memory.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Move the sys_clk clock functions from clock2xxx.c to
mach-omap2/clkt2xxx_sys.c.  This is intended to make the clock code
easier to understand, since all of the functions needed to manage the
sys_clk are now located in their own file, rather than being mixed
with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG
macro can now be defined for the sys_clk clock alone.  This
should reduce unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split into
OMAP2/3/4 variants, this clkt file can be placed in the mach-omap2xxx/
directory, rather than shared with other chip types that don't use
this clock type.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

Move the osc_clk clock functions from clock2xxx.c to
mach-omap2/clkt2xxx_osc.  This is intended to make the clock code
easier to understand, since all of the functions needed to manage the
osc_clk are now located in their own file, rather than being mixed
with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG
macro can now be defined for osc_clk clocks alone.  This
should reduce unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be placed in the mach-omap2xxx/
directory, rather than shared with other chip types that don't use this
clock type.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

Move the APLL-related clock functions from clock2xxx.c to
mach-omap2/clkt2xxx_apll.c.  This is intended to make the clock code
easier to understand, since all of the functions needed to manage APLLs
are now located in their own file, rather than being mixed with other,
unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG
macro can now be defined for APLL clocks alone.  This
should reduce unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be placed in the mach-omap2xxx/
directory, rather than shared with other chip types that don't use this
clock type.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

Move the DVFS virtual clock functions from clock2xxx.c to
mach-omap2/clkt2xxx_virt_prcm_set.c.  This is intended to make the
clock code easier to understand, since all of the functions needed to
manage the virt_prcm_set clock are now located in their own file,
rather than being mixed with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG macro
can now be defined for the virt_prcm_set clock alone.  This should
reduce unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split into
OMAP2/3/4 variants, this clkt file can be placed in the mach-omap2xxx/
directory, rather than shared with other chip types that don't use
this clock type.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments.
Thanks also to Kevin Hilman <khilman@deeprootsystems.com> for finding
and fixing a bug with the CONFIG_CPU_FREQ portion of this patch.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Move the DPLL+CORE composite clock functions from clock2xxx.c to
mach-omap2/clkt2xxx_dpllcore.c.  This is intended to make the clock
code easier to understand, since all of the functions needed to manage
the OMAP2 DPLL+CORE clock are now located in their own file, rather
than being mixed with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG
macro can now be defined for the DPLL+CORE clock alone.  This
should reduce unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be placed in the mach-omap2xxx/
directory, rather than shared with other chip types that don't use this
clock type.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

The struct clk_functions for OMAP2, 3, and 4 are all essentially the
same, so combine them.  This removes one multi-OMAP kernel impediment
and saves memory on multi-OMAP builds.

The stubs for omap2_clk_{init,exit}_cpufreq() code will removed once
the OPP layer code that's currently in Kevin's PM branch is merged.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Move static functions to the top of the file and ensure that their names
are prefixed with an underscore to conform with the practice in the newer
OMAP clock code files.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Move all clksel-related clock functions from mach-omap2/clock.c to
mach-omap2/clkt_clksel.c.  This is intended to make the clock code
easier to understand, since all of the functions needed to manage
clksel clocks are now located in their own file, rather than being
mixed with other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG macro
can now be defined for clksel clocks alon.  This should reduce
unnecessary console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be moved to the plat-omap/
directory to be shared.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

Move all DPLL-related clock functions from mach-omap2/clock.c to
mach-omap2/clkt_dpll.c.  This is intended to make the clock code
easier to understand, since all of the functions needed to manage
DPLLs are now located in their own file, rather than being mixed with
other, unrelated functions.

Clock debugging is also now more finely-grained, since the DEBUG macro
can now be defined for DPLLs alone.  This should reduce unnecessary
console noise when debugging.

Also, if at some future point the mach-omap2/ directory is split
into OMAP2/3/4 variants, this clkt file can be moved to the plat-omap/
directory to be shared.

Thanks to Alexander Shishkin <virtuoso@slind.org> for his comments to
improve the patch description.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>

Mark the OMAP3-specific DPLL functions as being OMAP3-specific by moving
them from mach-omap2/dpll.c to mach-omap2/dpll3xxx.c.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>

Some HW blocks have errata which requires specific slave idle mode
under certain conditions.

This patch adds an hwmod API to allow setting slave idlemode
ensuring that any SYSCONFIG register updates go through hwmod.
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

This patch only affects documentation; no functional changes are
included.

Clean up comments in the current clockdomain, powerdomain code and
header files.  This mostly involves conversion to kerneldoc format,
although some clarifications are also included.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Nothing calls pwrdm_clk_state_switch(), and the function that seems to be
its ideal use case calls pwrdm_clkdm_state_switch(clk->clkdm), so remove it.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <tero.kristo@nokia.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Replace some bare constants with symbolic constants.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Add usecounting for wakeup and sleep dependencies.  In the current
situation, if several functions add dependencies on the same
clockdomains, when the first dependency removal function is called,
the dependency will be incorrectly removed from the hardware.

Add clkdm_clear_all_wkdeps() and clkdm_clear_all_sleepdeps(), which
provide a fast and usecounting-consistent way to clear all hardware
clockdomain dependencies, since accesses to these registers can be
quite slow.  pm{2,3}4xx.c has been updated to use these new functions.
The original version of this patch did not touch these files, which
previously wrote directly to the wkdep registers, and thus confused
the usecounting code.  This problem was found by Kevin Hilman
<khilman@deeprootsystems.com>.

N.B.: This patch introduces one significant functional difference over
the previous pm34xx.c code: sleepdeps are now cleared during
clockdomain initialization, whereas previously they were left
untouched.  This has been tested by Kevin and confirmed to work.

The original version of this patch also did not take into
consideration that some clockdomains do not have sleep or wakeup
dependency sources, which caused NULL pointer dereferences.  This
problem was debugged and fixed by Kevin Hilman
<khilman@deeprootsystems.com>.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Cc: Jouni Högander <jouni.hogander@nokia.com>