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Commit Graph

792 Commits

Author SHA1 Message Date
Tony Lindgren
9556175183 omap2/3: Make get_irqnr_and_base common for mach-omap2 multiboot
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: Tony Lindgren <tony@atomide.com>
2010-02-15 09:26:51 -08:00
Tony Lindgren
be26a3df0b Merge branch 'debug-ll' into omap-for-linus 2010-02-15 09:26:07 -08:00
Tony Lindgren
0c8219f030 omap: Make uncompress code and DEBUG_LL code generic
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: Tony Lindgren <tony@atomide.com>
2010-02-15 08:49:01 -08:00
Tony Lindgren
4f2c49fedf omap: Clean the serial port defines
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: Tony Lindgren <tony@atomide.com>
2010-02-15 08:48:53 -08:00
Tony Lindgren
918cae1487 Merge branch 'for-tony' of git://gitorious.org/linux-omap-dss2/linux into omap-for-linus 2010-02-12 11:39:53 -08:00
Tony Lindgren
4e6d488af3 ARM: 5910/1: ARM: Add tmp register for addruart and loadsp
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: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-12 17:27:52 +00:00
Mike Rapoport
7f049ad15e omap3: cm-t35: add DSS2 display support
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-02-12 12:29:57 +02:00
Vaibhav Hiremath
c3d33329f4 OMAP: AM3517: Enable DSS2 for AM3517EVM board
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed defconfig changes]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-02-12 12:29:31 +02:00
Vaibhav Hiremath
703e3061a0 OMAP: Enable DSS2 for OMAP3EVM board
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed evm defconfig changes]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-02-12 12:28:09 +02:00
Tony Lindgren
0482e3c6f7 Merge branch 'omap-fixes-for-linus' into omap-for-linus 2010-02-10 18:18:13 -08:00
Aaro Koskinen
a6c7fdd293 OMAP: hsmmc: fix memory leak
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: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-10 09:20:33 -08:00
Tony Lindgren
301fe8eeee omap: Disable serial port autoidle by default
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: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-03 08:48:06 -08:00
Tony Lindgren
78737ae1b0 omap: Fix arch/arm/mach-omap2/mux.c: Off by one error
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: David Binderman <dcb314@hotmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-03 08:48:06 -08:00
Tony Lindgren
9ecef43320 omap: Fix 3630 mux errors
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: Allen Pais <allen.pais@ti.com>
Signed-off-by: Allen Pais <allen.pais@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-03 08:48:06 -08:00
Kevin Hilman
8d08436d78 OMAP2/3: GPMC: ensure valid clock pointer
Ensure valid clock pointer during GPMC init.  Fixes compiler
warning about potential use of uninitialized variable.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-03 08:48:06 -08:00
Kevin Hilman
74005a2b11 OMAP2/3: IRQ: ensure valid base address
Ensure valid base address during IRQ init.  Fixes compiler warning
about potential use of uninitialized variable.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-03 08:48:06 -08:00
Paul Walmsley
98fa3d8aea OMAP2+ powerdomains/clockdomains: prepare for multi-OMAP configs
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: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
2010-01-29 10:14:23 -07:00
Rajendra Nayak
56ef28acf1 OMAP4: PRCM: Define shift macros as n instead of 1 << n
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: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-29 10:14:22 -07:00
Paul Walmsley
e80a9729b1 OMAP2/3/4 clock: rename and clean the omap2_clk_init() functions
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: Paul Walmsley <paul@pwsan.com>
2010-01-29 10:14:22 -07:00
Paul Walmsley
60c3f65191 OMAP3 DPLL: reorganize static functions
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: Paul Walmsley <paul@pwsan.com>
2010-01-29 10:14:22 -07:00
Paul Walmsley
feec1277a5 OMAP2/3/4 clock: omap2_clk_prepare_for_reboot() is OMAP2xxx-only
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: Paul Walmsley <paul@pwsan.com>
2010-01-29 10:14:22 -07:00
Paul Walmsley
da4d2904ab OMAP2/3 clock: remove unnecessary includes and clean up header
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: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Jouni Högander <jouni.hogander@nokia.com>
2010-01-29 10:14:22 -07:00
Paul Walmsley
4680c29f69 OMAP2/3 clock: clean up omap*_clk_arch_init()
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: Paul Walmsley <paul@pwsan.com>
2010-01-29 10:14:22 -07:00
Paul Walmsley
35e424e2c0 OMAP3 clock: split out DPLL3 M2 divider functions into mach-omap2/clkt34xx_dpll3m2.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Jouni Högander <jouni.hogander@nokia.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-28 18:13:50 -07:00
Paul Walmsley
6ebe0d88f5 OMAP2 clock: don't compile OMAP2430-only functions on non-2430 builds
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: Paul Walmsley <paul@pwsan.com>
2010-01-28 18:13:50 -07:00
Paul Walmsley
44da0a5103 OMAP2xxx clock: move sys_clk code into mach-omap2/clkt2xxx_sys.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-28 18:13:49 -07:00
Paul Walmsley
87a1b26c2d OMAP2xxx clock: move osc_clk code into mach-omap2/clkt2xxx_osc.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-28 18:13:49 -07:00
Paul Walmsley
49214640f5 OMAP2xxx clock: move the APLL clock code into mach-omap2/clkt2xxx_apll.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-28 18:13:49 -07:00
Paul Walmsley
734f69a773 OMAP2xxx clock: move the DVFS virtual clock code into mach-omap2/clkt2xxx_virt_prcm_set.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-26 20:13:06 -07:00
Paul Walmsley
b1823d8616 OMAP2xxx clock: move the DPLL+CORE composite clock code into mach-omap2/clkt2xxx_dpllcore.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-26 20:13:06 -07:00
Paul Walmsley
69ecefca51 OMAP2/3/4 clock: combine all omap2_clk_functions
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: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-26 20:13:04 -07:00
Paul Walmsley
4b1f76ed4f OMAP2 clock: move all static functions to the top of the file
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: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:13:04 -07:00
Paul Walmsley
df791b3ebf OMAP2/3/4 clock: move clksel clock functions into mach-omap2/clkt_clksel.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-26 20:13:04 -07:00
Paul Walmsley
0b96af6830 OMAP2/3/4 clock: move DPLL clock functions into mach-omap2/clkt_dpll.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Alexander Shishkin <virtuoso@slind.org>
2010-01-26 20:13:03 -07:00
Paul Walmsley
98c4545749 OMAP3 clock: move OMAP3-specific DPLL functions to dpll3xxx.c
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: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
2010-01-26 20:13:03 -07:00
Kevin Hilman
46273e6f37 OMAP: hwmod: add API for slave idlemode setting
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: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:13:03 -07:00
Paul Walmsley
f0271d65f9 OMAP clockdomain/powerdomain: improve documentation
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: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:13:02 -07:00
Paul Walmsley
915aad89fc OMAP powerdomain: remove pwrdm_clk_state_switch
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: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <tero.kristo@nokia.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-26 20:13:02 -07:00
Paul Walmsley
cf57aa7c54 OMAP powerdomain/PM: use symbolic constants for the max number of power states
Replace some bare constants with symbolic constants.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-26 20:13:01 -07:00
Paul Walmsley
369d561445 OMAP clockdomains: add usecounting for wakeup and sleep dependencies
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: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Jouni Högander <jouni.hogander@nokia.com>
2010-01-26 20:13:01 -07:00
Paul Walmsley
e909d62a8a OMAP clockdomain/powerdomain: remove runtime register/unregister
OMAP clockdomains and powerdomains are currently defined statically,
only registered at boot, and never unregistered, so we can remove the
unregister function and the locking.   A variant of this was originally
suggested a while ago by Dmitry Baryshkov <dbaryshkov@gmail.com>.
This version of this patch contains an additional fix from Kevin Hilman
<khilman@deeprootsystems.com> to address one of the pwrdm_for_each_nolock()
users in mach-omap2/pm-debug.c.   Thanks Kevin.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-26 20:13:00 -07:00
Paul Walmsley
3d309cdef3 OMAP2 clockdomain: modem clockdomain is only present on OMAP2430
For some reason, previously, we included the MDM clockdomain on all 24xx,
but the stacked die-on-die modem configuration (chassis mode) is only
available on OMAP2430.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:59 -07:00
Paul Walmsley
a260170028 OMAP2/3 clockdomains: split shared structures so usecounting works
Previously some of the clockdomain wakeup/sleep dependency structures
were shared between several domains.  For the subsequent wakeup and sleep
dependency usecounting patch to work, these can no longer be
shared.  This patch splits the shared structures apart.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:59 -07:00
Paul Walmsley
55ed96945b OMAP2/3 clkdm/pwrdm: move wkdep/sleepdep handling from pwrdm to clkdm
Move clockdomain wakeup dependency and sleep dependency data
structures from the powerdomain layer to the clockdomain layer, where
they belong.  These dependencies were originally placed in the
powerdomain layer due to unclear documentation; however, it is clear
now that these dependencies are between clockdomains.  For OMAP2/3,
this is not such a big problem, but for OMAP4 this needs to be fixed.

Thanks to Benoît Cousson <b-cousson@ti.com> for his advice on this
patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2010-01-26 20:12:59 -07:00
Abhijit Pagare
6b04e0d99d ARM: OMAP4 clock domains : Add the missing Clock Domain Structure
One of the clock domains was missing from the auto-generated file.
It has been added here.

Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:58 -07:00
Abhijit Pagare
bf98540106 ARM: OMAP4 clock framework: Remove the checks preventing OMAP4 clockdomain validation
The clockdomain related code being in place, it is not necessary to have
some part of the clock code commented out. This would help the validation of
the clockdomain functions using the clock level interfaces.

Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:58 -07:00
Paul Walmsley
e9b98f6040 OMAP clock: make the fixed divisor clock code available for all OMAPs
One of the OMAP1 clocks can use the fixed divisor recalculation code
introduced in the OMAP2 clock code, so rename the
omap2_fixed_divisor_recalc() function to omap_fixed_divisor_recalc()
and make it available to all OMAPs.  A followup patch converts the OMAP1
clock.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:57 -07:00
Ranjith Lohithakshan
ced825293a AM35xx: Clock table updates for AM3505/17
AM3505/17 though a OMAP3530 derivative have the following
main differences

	- Removal of the following OMAP3 modules
		- IVA
		- ISP/CAM
		- Modem and D2D components (MAD2D, SAD2D)
		- USIM
		- SSI
		- Mailboxes
		- USB OTG
		- ICR
		- MSPRO
		- SmartReflex
	- SDRC replaced with EMIF4 Controller in the SDRC subsystem
	  thus adding support for DDR2 memory devices
	- Addition of the following new modules
		- Ethernet MAC (CPGMAC)
		- CAN Controller (HECC)
		- New USB OTG Controller with integrated Phy
		- Video Processing Front End (VPFE)
		- Additional UART (UART4)
	- All security accelerators disabled on GP devices and not to
	  be accessed or configured

This patch defines CPU flags for AM3505/17 and update the clock table.
Clock support for new modules will be added by subsequent patches.

Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com>
[paul@pwsan.com: updated for 2.6.34 clock layout]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:57 -07:00
Paul Walmsley
2c8a177eba OMAP3 clock: reorganize CK_* platform flags
Add CK_* flags for the two new Sitara chips, AM3505 and AM3517, and
the OMAP34xx die shrink, OMAP36xx/OMAP37xx.  Introduce a new CK_*
flag, CK_3XXX, that marks all clocks that are common to OMAP3 family
chips.  CK_343X now refers to clocks that are available only on
OMAP34{1,2,3,4}0 (WTBU) and OMAP35{03,15,25,30} (any version).
At some point, the RATE_IN_* flags should be updated also.

While here, add some documentation describing the chip families
covered by these clock flags.

This patch is partially based on patches from Ranjith Lohithakshan
<ranjithl@ti.com> and Vishwanath Sripathy <vishwanath.bs@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Ranjith Lohithakshan <ranjithl@ti.com>
Cc: Vishwanath Sripathy <vishwanath.bs@ti.com>
2010-01-26 20:12:56 -07:00
Abhijit Pagare
8a3ddc759b ARM: OMAP4: PM: Refine the APIs to support OMAP4 features.
Port the APIs to support the OMAP4 clockdomain framework.
Also take care of the compiling requirements for the same.

Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
2010-01-26 20:12:54 -07:00