Signed-off-by: NColin Cross <ccross@android.com>

Signed-off-by: NColin Cross <ccross@android.com>

Signed-off-by: NColin Cross <ccross@android.com>

A future patch will export gic_mask_irq and gic_unmask_irq.
Rename the pointers in arch/arm/mach-tegra/irq.c to avoid
a compile error.
Signed-off-by: NColin Cross <ccross@android.com>

Commit 37337a8d, "ARM: tegra: irq_data
conversion." missed changing one reference to 'irq' in the function
tegra_gpio_irq_set_type().  This patch fixes the build error.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NLennert Buytenhek <buytenh@secretlab.ca>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NColin Cross <ccross@android.com>

This patch adds support for the internal matrix keyboard controller for
Nvidia Tegra platforms.
Signed-off-by: NRakesh Iyer <riyer@nvidia.com>
Reviewed-by: NTrilok Soni <tsoni@codeaurora.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

e3d9c625 (ARM: CPU hotplug: fix hard-coded control register constants)
changed the wrong constants in the hotplug assembly code.  Fix this.
Reported-by: Nviresh kumar <viresh.kumar@st.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NLennert Buytenhek <buytenh@secretlab.ca>

SDHCI driver for Tegra. This driver plugs in as a new variant of
sdhci-pltfm, using the platform data structure passed in to specify the
GPIOs to use for card detect, write protect and card power enablement.

Original driver (of which only the header file is left):
Signed-off-by: NYvonne Yip <y@palm.com>

The rest, which has been rewritten by now:
Signed-off-by: NOlof Johansson <olof@lixom.net>
Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NChris Ball <cjb@laptop.org>

Convert tegra to use the new sched_clock() infrastructure for extending
32bit counters to full 64-bit nanoseconds.
Tested-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

ftrace requires sched_clock() to be notrace.  Ensure that all
implementations are so marked.  Also make sure that they include
linux/sched.h

Also ensure OMAP clocksource read functions are marked notrace as
they're used for sched_clock() too.
Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: NWill Deacon <will.deacon@arm.com>
Tested-by: NMikael Pettersson <mikpe@it.uu.se>
Tested-by: NEric Miao <eric.y.miao@gmail.com>
Tested-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

tegra_clocksource_read should not use cnt32_to_63, wrapping is
already handled in the clocksource code.  Move the cnt32_to_63
into the sched_clock function, and replace the use of clocksource
mult and shift with a multiplication by 1000 to convert us to ns.
Acked-by: NJohn Stultz <johnstul@us.ibm.com>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Tested-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NColin Cross <ccross@android.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Use the definition we've provided in asm/system.h rather than
numeric constants.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The original scheme for reporting spurious wakeups was broken - it
tried to use printk() from a context which wasn't coherent with the
other CPUs, which risks corrupting the printk() data.

Fix this by noting the number spurious wakeups, and only report them
when we are properly woken - when we will be coherent with the rest
of the system.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

With "ARM: CPU hotplug: remove bug checks in platform_cpu_die()", we
now do not use hard_smp_processor_id(), we no longer need to read the
hardware processor ID.  Remove the include providing this function.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

platform_cpu_die() is entered from the CPU's own idle thread, which
can not be migrated to other CPUs.  Moreover, the 'cpu' argument
comes from the thread info, which will always be the 'current'
CPU.  So remove this useless bug check.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

We always need to wait for the dying CPU to reach a safe state before
taking it down, irrespective of the requirements of the platform.
Move the completion code into the ARM SMP hotplug code rather than
having each platform re-implement this.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

All platforms call trace_hardirqs_off() in their secondary startup code,
so move this into the core SMP code - it doesn't need to be in the
per-platform code.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

There is a certain amount of smp_prepare_cpus() which doesn't belong
in the platform support code - that is, code which is invariant to the
SMP implementation.  Move this code into arch/arm/kernel/smp.c, and
add a platform_ prefix to the original function.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Milo is an old boot loader, which is no longer relevant for these
platforms.  References to it are misleading.  Move the code out
of poke_milo(), and remove references to milo in comments.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

scu_get_core_count() never returns zero cores, so we don't need to
check and correct if ncores is zero.

Tegra was missing the check against NR_CPUS, leading to a potential
bitfield overflow if this becomes the case.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Provide a standard get_irqnr_preamble assembler macro for platforms
to use, which retrieves the base address of the GIC CPU interface
from gic_cpu_base_addr.  Allow platforms to override this by defining
HAVE_GET_IRQNR_PREAMBLE.
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>
Tested-by: NAbhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

We don't need to re-pass the base address for the CPU interfaces to the
GIC for secondary CPUs, as it will never be different from the boot CPU
- and even if it was, we'd overwrite the boot CPU's base address.

Get rid of this argument, and rename to gic_secondary_init().
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>
Tested-by: NAbhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Provide gic_init() which initializes the GIC distributor and current
CPU's GIC interface for the boot (or single) CPU.
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>
Tested-by: NAbhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Defining iounmap() with arguments prevents it from being used as a
function pointer, causing platforms to work around this.  Instead,
define it to be a simple macro.

Do the same for __arch_io(re|un)map too.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the Tegra subarchitecture.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Commit 0ea12930 ("arm: return both physical and virtual addresses
from addruart") took out the test for MMU on/off but didn't switch the
ldr instructions to no longer be conditionals based on said test.

Fix that.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Acked-by: NColin Cross <ccross@android.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI.  Recover the SGI number via do_IPI.
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

smp_cross_call_done() was removed long ago (see 78d236c2 - remove useless
smp_cross_call_done()).  Remove those which have been subsequently
merged.
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

factorise some generic infrastructure to assist looking up struct clks
for the ARM & SH architecture.

as the code is identical at 99%

put the arch specific code for allocation as example in asm/clkdev.h
Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: NPaul Mundt <lethal@linux-sh.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NZimny Lech <napohybelskurwysynom2010@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NMike Rapoport <mike@compulab.co.il>
CC: Olof Johansson <olof@lixom.net>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: NColin Cross <ccross@android.com>

Change-Id: Ibd0bcd46895eb88952b9db29e1f68572d39aae01
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Acked-by: NArnd Bergmann <arnd@arndb.de>
CC: Russell King <linux@arm.linux.org.uk>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: NColin Cross <ccross@android.com>

Signed-off-by: NMike Rapoport <mike@compulab.co.il>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: NColin Cross <ccross@android.com>

The APB DMA block handles DMA transfers to and from some peripherals
in the Tegra SOC.  It reads from sequential addresses on the memory
bus, and writes repeatedly to the same address on the APB bus.

Two transfer modes are supported, oneshot for transferring a known
size to or from a peripheral, and continuous for streaming data.
In continuous mode, a callback occurs when the buffer is half full
to allow the existing data to be handled and a new request queued.x

v2 changes:
	dma API no longer uses PTR_ERR
Signed-off-by: NErik Gilling <konkers@android.com>
Signed-off-by: NColin Cross <ccross@android.com>

Implement cpufreq support for the Tegra SOC.  DVFS is handled by the
core virtual cpu clock.  The frequencies of the two cores are tied
together, the highest frequency requested by either core determines
the actual frequency.
Signed-off-by: NColin Cross <ccross@android.com>

Renames clocks in the clock init table to match the datasheet names
Signed-off-by: NColin Cross <ccross@android.com>

- Add drivers to clock lookup table
- Add new pll_m entries
- Support I2C U16 divider
- Fix rate reporting on 32.768kHz clock
- Call propagate rate only if set_rate succeeds
- Add support for audio_sync clock
- Add 24MHz to PLLA frequency list
- Correct i2s1/2/spdifout mux
- Add suspend support
- Fix enable/disable parent clocks in set_parent
- Add max_rate parameter to all clocks
- DVFS support
- Add virtual cpu clock with dvfs
- Support clk_round_rate
- Fix requesting very high periph frequencies
- Add quirks for PLLU:
   PLLU is slightly different from the rest of the PLLs.  The
   lock enable bit is at bit 22 instead of 18 in the MISC
   register, and the post divider field is a single bit with
   reversed values from other PLLs.
- Simplify recalculating clock rates
- Fix UART divider flags
- Remove unused clock ops
Signed-off-by: NColin Cross <ccross@android.com>

The Tegra SOC contains fuses to identify the CPU type and
bin, and a unique id.  The CPU info is required to determine
the correct voltages for each cpu and core frequency.
Signed-off-by: NColin Cross <ccross@android.com>

Includes checkpatch fixes and TEGRA_NR_GPIOS changes from
Mike Rapoport <mike@compulab.co.il>
Signed-off-by: NColin Cross <ccross@android.com>