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All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.
Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Most of the AM43x CM reg address offsets are with MSB bit '1' (on
16-bit value) leading to arithmetic miscalculations while calculating
CLOCK ENABLE register's address because cm_inst field was a type of
"const s16", so make it "const u16".
Also modify relevant functions so as to take care of the above.
[afzal@ti.com: fixup and cleanup]
Signed-off-by: Ankur Kishore <a-kishore@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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am33xx_cm_wait_module_ready() checks if register offset is NULL.
int am33xx_cm_wait_module_ready(u16 inst, s16 cdoffs, u16 clkctrl_offs)
{
int i = 0;
if (!clkctrl_offs)
return 0;
In case of AM33xx, CLKCTRL register offset for different clock domains
are not uniformly placed. An example of this would be the RTC clock
domain with CLKCTRL offset at 0x00.
In such cases the module ready check is skipped which leads to a data
abort during boot-up when RTC registers is accessed.
Remove this check here to avoid checking module readiness for modules
with clkctrl register offset at 0x00.
Koen Kooi notes that this patch fixes a crash on boot with
CONFIG_RTC_DRV_OMAP=y with v3.8-rc5.
Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com>
Cc: Koen Kooi <koen@dominion.thruhere.net>
[paul@pwsan.com: noted Koen's test in the patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/headers
From Tony Lindgren <tony@atomide.com>:
These changes deal with the issues of relative includes
introduced by the earlier clean-up and clean up few more
things for enabling multiplatform support.
The multiplatform kernel has been booted on omaps on
top of this branch with the work-in-progress patches
applied manually.
We cannot yet enable the multiplatform support though.
We still need the common clock framework patches, some
solution for dma-omap.h, and serial-omap.h moved before
we can enable it.
* tag 'omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: Remove omap_init_consistent_dma_size()
ARM: OMAP: Remove NEED_MACH_GPIO_H
ARM: OMAP: Remove unnecessary mach and plat includes
ARM: OMAP2+: Fix relative includes for serial.h
ARM: OMAP: Fix relative includes for fpga.h
ARM: OMAP1: Remove relative includes
ARM: OMAP: Remove cpu_is_omap usage from plat-omap/dma.c
ARM: OMAP: Fix relative includes for debug-devices.h
ARM: OMAP: Remove plat-omap/common.h
ARM: OMAP: Move omap-pm-noop.c local to mach-omap2
ARM: OMAP: Fix relative includes for shared i2c.h file
ARM: OMAP: Make plat-omap/i2c.c port checks local
ARM: OMAP: Move omap2+ specific parts of sram.c to mach-omap2
ARM: OMAP: Move omap1 specific code to local sram.c
ARM: OMAP: Introduce common omap_map_sram() and omap_sram_reset()
ARM: OMAP: Split sram.h to local headers and minimal shared header
ARM: OMAP1: usb: fix sparse warnings
Conflicts:
arch/arm/mach-omap2/cm33xx.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Most of the prototypes in plat-omap/common.h are not
common to omap1 and omap2+, they are local to omap2+
and should not be in plat-omap/common.h.
The only shared function prototype in this file is
omap_init_clocksource_32k(), let's put that into
counter-32k.h.
Note that the new plat/counter-32k.h must not be
included from drivers, that will break omap2+ build
for CONFIG_MULTIPLATFORM.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8/cleanup-prcm
The first set of OMAP PRM/CM-related cleanup patches for 3.8.
Prepares for the future move of the PRM/CM code to drivers/. Also
includes some prcm.[ch] cleanup patches from the WDTIMER cleanup
series that don't need external acks.
Basic test logs for this branch on top of v3.7-rc2 are here:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121021123719/
But due to the number of unrelated regressions present in v3.7-rc[12],
it's not particularly usable as a testing base. With reverts, fixes,
and workarounds applied as documented in:
http://www.pwsan.com/omap/testlogs/test_v3.7-rc2/20121020134755/README.txt
the following test logs were obtained:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121020231757/
which indicate that the series tests cleanly.
Conflicts:
arch/arm/mach-omap2/Makefile
arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
arch/arm/mach-omap2/pm24xx.c
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into PRM/CM
Move the low-level SoC-specific clockdomain control functions into
cm*.c and prm*.c. For example, OMAP2xxx low-level clockdomain
functions go into cm2xxx.c. Then remove the unnecessary
clockdomain*xxx*.c files.
The objective is to centralize low-level CM and PRM register accesses
into the cm*.[ch] and prm*.[ch] files, and then to export an OMAP
SoC-independent API to higher-level OMAP power management code.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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We cannot keep this in plat/common.h for common zImage support.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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As far as PRM/CM/PRCM modules are concerned, AM33XX device is
different than OMAP3 and OMAP4 architectures; so similar to
PRM implementation, handle AM33XX CM separately.
This patch introduces AM33XX CM module low-level api's, used and
required by omap clockdomain and hwmod framework.
Please note that cm-regbits-33xx.h (register bit field offset)
and cm33xx.h (register addr offset) files are mostly auto generated.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
CC: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: split the hwmod code changes in this patch into a separate
patch; updated for 3.5]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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