Add support for early console to the SH-Mobile boards.
Simply perform an early platform probe for "earlyprintk"
to trigger the early serial console code in sh-sci.c.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Optimize the SH-Mobile interrupt assembly macros to avoid
reloading the INTFLGA register address in case of multiple
pending interrupts. Kindly pointed out by Russell King.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This adds preliminary support for the SH7372 (SH-Mobile AP4) CPU and
the AP4EVB reference board.
Only timer, serial console and NOR flash are supported at this point.
Support for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This adds preliminary support for the SH7377 (SH-Mobile G4) CPU and
the G4EVM reference board.
Only timer, serial console and NOR flash are supported at this point.
Support for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This adds preliminary support for the SH-Mobile G-series.
The SH-Mobile G-series is a series of ARM/SH multi-core CPUs that aside
from the ARM MPU are primarily composed of existing SH IP blocks.
This includes initial support for the SH7367 (SH-Mobile G3) CPU and
the G3EVM reference board.
Only timer, serial console, and NOR flash are supported at this point.
Patches for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: Fix wrong register in proc-arm6_7.S data abort handler
ARM: 5909/1: ARM: Correct the FPSCR bits setting when raising exceptions
ARM: 5904/1: ARM: Always generate the IT instruction when compiling for Thumb-2
ARM: 5907/1: ARM: Fix the reset on the RealView PBX Development board
mx35: add a missing comma in a pad definition
mx25: make the FEC AHB clk secondary of the IPG
mx25: fix time accounting
mx25: properly initialize clocks
mx25: remove unused mx25_clocks_init() argument
i.MX25: implement secondary clocks for uarts and fec
i.MX25: Allow secondary clocks in DEFINE_CLOCK
ARM: MX3: Fixed typo in declared enum type name.
MXC: Add AUDMUXv2 register decode to debugfs
mx31ads: Provide an IRQ range to the WM835x on the 1133-EV1 module
mx31ads: Provide a name for EXPIO interrupt chip
mx31ads: Allow enable/disable of switchable supplies
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>
I have found an access to already released memory in
clk_debugfs_register_one() function.
Signed-off-by: Marek Skuczynski <mareksk7@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony 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: David Binderman <dcb314@hotmail.com>
Signed-off-by: Tony 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: Allen Pais <allen.pais@ti.com>
Signed-off-by: Allen Pais <allen.pais@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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>
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>
OMAP platforms(like OMAP3530) include DSP or other co-processors
for media acceleration. when carving out memory for the
accelerators we can end up creating a hole in the memory map
of sort:
<kernel memory><hole(memory for accelerator)><kernel memory>
To handle such a memory configuration ARCH_HAS_HOLES_MEMORYMODEL
has to be enabled. For further information refer discussion at:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg15262.html.
Signed-off-by: Sriramakrishnan <srk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit c98929c07a removed the clearing of the FPSCR[31:28] bits from the
vfp_raise_exceptions() function and the new bits are or'ed with the old
FPSCR bits leading to unexpected results (the original commit was
referring to the cumulative bits - FPSCR[4:0]).
Reported-by: Tom Hameenanttila <tmhameen@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Current behaviour is to generate the IT instruction only for Thumb-2
code. However, the kernel helpers in entry-armv.S are compiled to ARM in
a unified syntax file (if THUMB2_KERNEL). Recent compilers warn about
missing IT instruction in unified assembly syntax files. The patch
changes the "-mimplicit-it" gas option to "always".
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Colin Tuckley <colin.tuckley@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The only usage of _toggle_gpio_edge_triggering is in
an #ifdef CONFIG_ARCH_OMAP1 block, so only provide it if
CONFIG_ARCH_OMAP1 is defined, too.
This fixes a compiler warning:
arch/arm/plat-omap/gpio.c:758: warning: '_toggle_gpio_edge_triggering' defined but not used
when compiling for ARCH_OMAP2, ARCH_OMAP3 or ARCH_OMAP4.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This makes the FEC clock configuration consistent with the UART one.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The gpt_clk rate function doesn't consider the PER divider. This causes a
significant drift in time accounting. Fix this by introducing the correct rate
calculation function.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch disables all unnecessary clock in mx25_clocks_init() to make a clean
start, the same as is being done for the rest of the i.MX chips.
This patch was tested on i.MX25 PDK.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The fref is needless on mx25 since the reference clock is fixed at 24MHz.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* '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()
...
This patch fixes power LED blinking and power-off on DNS-323 rev. B1.
GPIO pin 3 has to be set to 1 to stop power LED blinking and to allow the LED to be controlled via leds-gpio. This pin has to be also set to 1 for power-off to work.
To power-off the rev. B1 machine, pin 8 has to be set to 1 and then set to 0 to do actual power-off.
Tested on my DNS-323 rev. B1
Signed-off-by: Erik Benada <erikbenada@yahoo.ca>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
OMAP GP timers keep running for a few cycles after they are stopped,
which can cause the timer to expire and generate an interrupt. The
pending interrupt will prevent e.g. OMAP from entering suspend, thus
we ack it manually. Only applicable on OMAP2/3/4.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit cfc38999f (backlight: Pass device through notify callback)
added a struct device argument to the notify callback, but didn't
update the user of it in mach-hmt.c
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments
ARM: 5886/1: arm: Fix cpu_proc_fin() for proc-v7.S and make kexec work
ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot()
ARM: 5884/1: arm: Fix DCC console for v7
ARM: 5883/1: Revert "disable NX support for OABI-supporting kernels"
ARM: 5882/1: ARM: Fix uncompress code compile for different defines of flush(void)
ARM: fix badly placed mach/plat entries in Kconfig & Makefile
To distinguish between mx31lite and mx31lilly boards better to use
different enum types.
Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fix following warning when CONFIG_DEBUG_FS wasn't selected:
arch/arm/mach-omap2/pm-debug.c:57: warning: 'pm_dbg_init' declared 'static' but never defined
Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Currently, DSS does not wakeup when there is a DMA request. DSS wake
up event must be enabled so that the DMA request to refill the FIFO
will wake up the CORE domain.
Signed-off-by: Subramani Venkatesh <subramani.venkatesh@windriver.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
During suspend, the kernel timekeeping subsystem is shut down. Before
suspend and upon resume, it uses a weak function
read_persistent_clock() to determine the amount of time that elapsed
during suspend.
This function was not implemented on OMAP, so from the timekeeping
subsystem perspective (and thus userspace as well) it appeared that no
time elapsed during suspend.
This patch uses the 32k sync timer as a the persistent clock.
NOTE: This does *NOT* fully handle wrapping of the 32k sync timer, so
more than one wrapping of the 32k sync timer during suspend may
cause problems. Also note there are not interrupts when the 32k
sync timer wraps, so something else has to be done.
Reported-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Due to OMAP3 erratas 1.157, 1.185 the save of the last pad register
(ETK_D14 and ETK_D15) can fail sometimes when there is simultaneous
OCP access to the SCM register area. Fixed by writing the last
register to the save area.
Also, optimized the delay loop for the HW save to include an udelay(1),
which limits the number of unnecessary HW accesses to SCM register area
during the save.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Acked-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
val is an u64 pointer, we need an int to check the error.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Wake-up from McBSP ports are needed, especially when the THRESHOLD
dma mode is in use for audio playback.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
The PM debug code fails to build on when CONFIG_DEBUG_FS is not
enabled.
Build error log:
arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle':
arch/arm/mach-omap2/pm34xx.c:449: undefined reference to `pm_dbg_regset_save'
arch/arm/mach-omap2/pm34xx.c:460: undefined reference to `pm_dbg_regset_save'
arch/arm/mach-omap2/built-in.o: In function `configure_vc':
arch/arm/mach-omap2/pm34xx.c:1237: undefined reference to `pm_dbg_regset_init'
arch/arm/mach-omap2/pm34xx.c:1238: undefined reference to `pm_dbg_regset_init'
make: *** [.tmp_vmlinux1] Error 1
This patch fixes the above errors.
Kernel booting is tested on omap zoom2 and zoom3 boards.
Signed-off-by: Manjunatha GK <manjugk@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
As part of Core domain context restoration while coming out of off mode
there are some registers being restored which are not required to be restored.
ROM code will have restored them already. Overwriting some of them can have
potential side effect. Eg: CM_CLKEN_PLL register should not be written while dpll is locked.
Tested on OMAP 3430 SDP for suspend/resume and off mode with sleep_while_idle enabled.
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
