This patch is based on previous work by Sony and Himanshu Chauhan.

I have done some cleanup and implemented JProbes and KRETPROBES.  The
KRETPROBES part is pretty much copied verbatim from powerpc.  A possible
future enhance might be to factor out the common code.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Himanshu Chauhan <hschauhan@nulltrace.org>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com,
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1525/
Patchwork: https://patchwork.linux-mips.org/patch/1530/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com
Cc: linux-kernel@vger.kernel.org
Cc: hschauhan@nulltrace.org
Patchwork: https://patchwork.linux-mips.org/patch/1524/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com
Cc: linux-kernel@vger.kernel.org,
Cc: hschauhan@nulltrace.org
Patchwork: https://patchwork.linux-mips.org/patch/1529/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

This belongs into userland.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

MSI-X interrupts are not supported yet for Octeon, return error if
MSI-X interrupts are requested by driver so that the driver will fall
back to use MSI interrupts.
Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
To: linux-mips@linux-mips.org
Cc: David Daney <ddaney@caviumnetworks.com>
Patchwork: https://patchwork.linux-mips.org/patch/1506/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1507/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The struct cpuinfo_mips.core field should be populated with the
physical core number.  For R2 CPUs, this is carried in the low 10 bits
of Ebase.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1505/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

While at it, drop 0x prefix.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
To: kernel-janitors@vger.kernel.org
Cc: Chris Dearman <chris@mips.com>
Cc: "Robert P. J. Day" <rpjday@crashcourse.ca>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: André Goddard Rosa <andre.goddard@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1458/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

LOONGSON2_PERFCNT_IRQ is used for the irq number of the performance
overflow interrupts; LOONGSON_PERFCNT_IRQ is unused so remove it.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1494/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

On FuLoong-2F IP6 is shared by the performance counter overflow interrupt
and the Bonito northbridge interrupt.  To reduce overhead only call
do_IRQ() when oprofile is enabled to reduce overhead.

This patch adds an inline function do_perfcnt_IRQ() to hide the #if's ,
which can be shared by the other Loongson machines, i.e. gdium.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1492/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

set_irq_trigger_mode() is not needed on all platforms so remove it
and move the related source code to mach_init_irq().

This will allow gdium to share the common irq.c without adding an empty
set_irq_trigger_mode().
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1493/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The OCTEON is a MIPS64 based SOC family with an on chip watchdog unit.

The driver is split into two source files one for the C code and one
for assembly.  Assembly is needed to handle the NMI and then print the
machine state before the reboot is triggered.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Marc Zyngier <maz@misterjones.org>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
To: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org,
Patchwork: https://patchwork.linux-mips.org/patch/1503/Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 drivers/watchdog/octeon-wdt-main.c
 create mode 100644 drivers/watchdog/octeon-wdt-nmi.S

This is used by the forthcoming OCTEON watchdog patch.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1498/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The forthcoming Octeon watchdog driver will use them.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1499/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The forthcoming watchdog driver will use it.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1499/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

A 'select EXPORT_UASM' in Kconfig will cause the uasm to be exported
for use in modules.  When it is exported, all the uasm data and code
cease to be __init and __initdata.

Also daddiu_bug cannot be __cpuinitdata if uasm is exported.  The
cleanest thing is to just make it normal data.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1500/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

These are OCTEON specific instructions.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1496/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1495/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Power throttling make deterministic delay loops impossible.
Re-implement delays using the cycle counter.  This also allows us to
get rid of the code that calculates loops per jiffy.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1317/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the qi_lb60 (a.k.a QI Ben NanoNote) clamshell device.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1472/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the battery voltage measurement part of the JZ4740 ADC unit.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1416/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for reading the ADCIN pin of the ADC unit on JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: lm-sensors@lm-sensors.org
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1425/Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add OHCI glue code for JZ4740 SoCs OHCI module.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: linux-usb@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1411/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Matt Fleming <matt@console-pimps.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: linux-mmc@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1463/
Patchwork: https://patchwork.linux-mips.org/patch/1523/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the NAND controller on JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1470/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the LCD controller on JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1470/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the RTC unit on JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: rtc-linux@googlegroups.com
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: linux-mips@linux-mips.org 
Cc: linux-kernel@vger.kernel.org
Cc: Alessandro Zummo <a.zummo@towertech.it>,
Patchwork: https://patchwork.linux-mips.org/patch/1424/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add the Kbuild files for the JZ4740 architecture and adds JZ4740 support
to the MIPS Kbuild files.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1406/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add platform devices for all the JZ4740 platform drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1469/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for initializing arcs_cmdline on JZ4740 based machines and
provides a prom_putchar implementation.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1404/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The JZ4740 UART interface is almost 16550 compatible.
The UART module needs to be enabled by setting a bit in the FCR register
and it has support for receive timeout interrupts.  Instead of adding yet
another machine specific quirk to the 8250 serial driver we provide a
serial_out implementation which sets the required additional flags.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1403/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the PWM part of the timer unit on a JZ4740 SoC.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1468/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for DMA transfers on JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1401/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add gpiolib support for JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1467/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add plat_mem_setup and get_system_type for JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1399/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for suspend/resume and poweroff/reboot on a JZ4740 SoC.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1398/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add clocksource and clockevent support for the timer/counter unit on
JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1397/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for the timer/counter unit on a JZ4740 SoC.  This code is used
as a common base for the JZ4740 clocksource/clockevent implementation and
PWM support.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1396/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for IRQ handling on a JZ4740 SoC.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1465/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for managing the clocks found on JZ4740 SoC through the
Linux clock API.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1466/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>