Commit Graph

179828 Commits

Author SHA1 Message Date
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 d373019229 OMAP clock: resolve all remaining sparse warnings
Resolve all remaining sparse warnings in the OMAP clock code.

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
Kevin Hilman 9799aca203 OMAP: omap_device: optionally auto-adjust device activate/deactivate latencies
First, this patch adds new worst-case latency values to the
omap_device_pm_latency struct.  Here the worst-case measured latencies
for the activate and deactivate hooks are stored.

In addition, add an option to auto-adjust the latency values used for
device activate/deactivate.

By setting a new 'OMAP_DEVICE_LATENCY_AUTO_ADJUST' flag in the
omap_device_pm_latency struct, the omap_device layer automatically
adjusts the activate/deactivate latencies to the worst-case measured
values.

Anytime a new worst-case value is found, it is printed to the console.
Here is an example log during boot using UART2 s an example.  After
boot, the OPP is manually changed to the 125MHz OPP:

[...]
Freeing init memory: 128K
omap_device: serial8250.2: new worst case deactivate latency 0: 30517
omap_device: serial8250.2: new worst case activate latency 0: 30517
omap_device: serial8250.2: new worst case activate latency 0: 218139648
omap_device: serial8250.2: new worst case deactivate latency 0: 61035
omap_device: serial8250.2: new worst case activate latency 0: 278076171
omap_device: serial8250.2: new worst case activate latency 0: 298614501
omap_device: serial8250.2: new worst case activate latency 0: 327331542

/ # echo 125000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

omap_device: serial8250.2: new worst case deactivate latency 0: 91552

Motivation: this can be used as a technique to automatically determine
the worst case latency values.  The current method of printing a
warning on every violation is too noisy to actually interact the
console in order to set low OPP to discover latencies.

Another motivation for this patch is that the activate/deactivate
latenices can vary depending on the idlemode of the device.  While
working on the UARTs, I noticed that when using no-idle, the activate
latencies were as high as several hundred msecs as shown above.  When
the UARTs are in smart-idle, the max latency is well under 100 usecs.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:13:02 -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 e0594b448a OMAP powerdomain: rearrange struct powerdomain to save some memory
This patch rearranges the order of structure members in struct powerdomain
to avoid wasting memory due to alignment restrictions.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:13:01 -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 0dfc242ff0 OMAP1 clock: convert armwdt_ck to use the fixed divisor recalc function
The armwdt_ck clock uses a fixed divisor, so it can use the OMAP clock
fixed divisor recalculation code, rather than a custom function.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:57 -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
Ranjith Lohithakshan 05842a32c7 AM35xx: Add AM35xx specific control module registers
AM3517/05 has a few additional control module registers defined mainly
to control the new IP's. This patch adds support for those new registers.

Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.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
Abhijit Pagare 1a422724c6 ARM: OMAP4: PM: Adapt the existing OMAP2/3 Clock Domain Frameworks.
The introduction of the OMAP4 Clock Domain framework requires
some adaptaions to be done in the earlier files to place the
common and uncommon data in the proper places where they belong.

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
Abhijit Pagare 30b8863d2a ARM: OMAP4: PM: Add the Autogenerated OMAP4 specific clock domain framework.
The Autogenerated OMAP4 clock domain specific file
(mach-omap2/clockdomains44xx.h) is added here.  This file is
auto-generated using python scripting, and following is the lsit of
the people involved:
Benoit Cousson
Abhijit Pagare

Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
2010-01-26 20:12:54 -07:00
Abhijit Pagare b099474aa4 ARM: OMAP4: PM: Modify Clock-domain interfaces for OMAP4 compatibility.
Here the APIs are modified to use absolute addresses instead of module offsets.

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 20:12:53 -07:00
Abhijit Pagare 84c0c39aec ARM: OMAP4: PM: Make OMAP3 Clock-domain framework compatible for OMAP4.
Here the ".clkstctrl_reg" field is added to the clockdomain stucture
as the module offsets for OMAP4 do not map one to one for powerdomains
and clockdomains as it used to for OMAP3. Hence we need to use absolute
addresses to access the control registers. Some of the clock domains have
modules falling in the address space of PRM partition. Hence  necessitating
the use of absolute adresses.

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 20:12:53 -07:00
Abhijit Pagare 3a759f09d7 ARM: OMAP4: PM: Refine the APIs to support OMAP4 features.
The proper Macros have to be used for platform specific calls and
some of the compiling requirements and init calls are taken care of.

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 20:12:53 -07:00
Abhijit Pagare 38900c27fb ARM: OMAP4: PM: Adapt the existing OMAP2/3 and common Power Domain Frameworks.
Taking care of the platform specific and common power domains with
proper checks.  Also refining some Macros according to the latest
OMAP4 requirements.

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 20:12:52 -07:00
Abhijit Pagare f37c6dfac9 ARM: OMAP4: PM: Add the Autogenerated OMAP4 specific power domain framework.
The Autogenerated OMAP4 power domain specific file (mach-omap2/powerdomains44xx.h)
is added here.
This file is auto-generated using python scripting and following is the list of the people
involved:
Paul Walmsley
Benoit Cousson
Abhijit Pagare

Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
2010-01-26 20:12:52 -07:00
Abhijit Pagare 3790300903 ARM: OMAP4: PM: OMAP4 Power Domain Porting Related Clean-up.
Module offsets were same for OMAP2 and OMAP3 while they differ for OMAP4.
Hence we need different macros for identifying platform specific offsets.

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 20:12:51 -07:00
Abhijit Pagare c6a6e6e203 ARM: OMAP4: PM: OMAP4 essential basic initialisations.
Some of the OMAP4 specific chip level initialisations are taken care of.

Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
[paul@pwsan.com: updated to use '4430ES1' rather than simply '4430'; updated
 to apply after the intervening cpu.h/id.c patch; thanks also to Tony
 for catching a bug in my rewrite]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-01-26 20:12:51 -07:00
Linus Torvalds 4f4e65d248 Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (25 commits)
  OMAP2/3: DMTIMER: Clear pending interrupts when stopping a timer
  PM debug: Fix warning when no CONFIG_DEBUG_FS
  OMAP3: PM: DSS PM_WKEN to refill DMA
  OMAP: timekeeping: time should not stop during suspend
  OMAP3: PM: Force write last pad config register into save area
  OMAP: omap3_pm_get_suspend_state() error ignored in pwrdm_suspend_get()
  OMAP3: PM: Enable wake-up from McBSP2, 3 and 4 modules
  OMAP3: PM debug: fix build error when !CONFIG_DEBUG_FS
  OMAP3: PM: Removing redundant and potentially dangerous PRCM configration
  OMAP3: Fixed ARM aux ctrl register save/restore
  OMAP3: CPUidle: Fixed timer resolution
  OMAP3: PM: Remove duplicate code blocks
  OMAP3: PM: Disable interrupt controller AUTOIDLE before WFI
  OMAP3: PM: Enable system control module autoidle
  OMAP3: PM: Ack pending interrupts before entering suspend
  omap: Enable GPMC clock in gpmc_init
  OMAP1 clock: fix for "BUG: spinlock lockup on CPU#0"
  OMAP4: clocks: Fix the clksel_rate struct DPLL divs
  OMAP4: PRCM: Fix the base address for CHIRONSS reg defines
  OMAP: dma_chan[lch_head].flag & OMAP_DMA_ACTIVE tested twice in omap_dma_unlink_lch()
  ...
2010-01-25 18:56:12 -08:00
Linus Torvalds f6760aa024 Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  clockevent: Don't remove broadcast device when cpu is dead
2010-01-24 10:38:07 -08:00