Commit Graph

484513 Commits

Author SHA1 Message Date
Ley Foon Tan 25f232536c nios2: remove include asm-generic/iomap.h from io.h
Don't need asm-generic/iomap.h and asm-generic/io.h added
default ioread8/16/32 iowrite8/16/32 implementation.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:09 +08:00
Ley Foon Tan 568f6ba03c nios2: remove unnecessary space before define
Remove extra space between # and define.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:08 +08:00
Dmitry Torokhov b29438f22c nios2: fix error handling of irq_of_parse_and_map
Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:08 +08:00
Tobias Klauser ac8ab8dd95 nios2: Use IS_ENABLED instead of #ifdefs to check config symbols
Make the checking for div/mul/mulx instruction config symbols easier to
read by using IS_ENABLED instead of #ifdefs.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:07 +08:00
Ley Foon Tan 2fc8483fdc nios2: Build infrastructure
This patch adds Makefile and Kconfig files required for building a
nios2 kernel.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:06 +08:00
Ley Foon Tan 9cce02ec71 Documentation: Add documentation for Nios2 architecture
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:06 +08:00
Ley Foon Tan 383b8fb946 MAINTAINERS: Add nios2 maintainer
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:05 +08:00
Ley Foon Tan 106174d0d8 nios2: ptrace support
Add ptrace support for nios2.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:04 +08:00
Ley Foon Tan 42381bf1f2 nios2: Module support
This patch adds support for loadable modules.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:04 +08:00
Ley Foon Tan b31ebd8055 nios2: Nios2 registers
This file contains constants for the instruction macros, cpu registers,
fields and bits.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:03 +08:00
Ley Foon Tan 97da0d62d4 nios2: Miscellaneous header files
This patch introduces a few nios2-specific header files.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:03 +08:00
Ley Foon Tan 2612b87959 nios2: Cpuinfo handling
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:02 +08:00
Ley Foon Tan 4182de9e63 nios2: Time keeping
Add time keeping code for nios2.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-08 12:56:01 +08:00
Ley Foon Tan 95acd4c7b6 nios2: Device tree support
Add device tree support to arch/nios2.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:01 +08:00
Ley Foon Tan eea9507a69 nios2: Library functions
Add optimised library functions for nios2.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:00 +08:00
Ley Foon Tan b53e906d25 nios2: Signal handling support
This patch adds support for signal handling.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:59 +08:00
Ley Foon Tan 1000197d80 nios2: System calls handling
This patch adds support for system calls from userspaces. It uses the
asm-generic/unistd.h definitions with architecture spcific syscall.
The sys_call_table is just an array defined in a C file and it contains
pointers to the syscall functions.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:58 +08:00
Ley Foon Tan 19f4c6b5af nios2: ELF definitions
This patch adds definitions for the ELF format

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:58 +08:00
Ley Foon Tan 4fdace8d4f Add ELF machine define for Nios2
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-12-08 12:55:57 +08:00
Ley Foon Tan e23c621f98 nios2: DMA mapping API
This patch adds support for the DMA mapping API.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:56 +08:00
Ley Foon Tan f27ffc751c nios2: Interrupt handling
This patch adds the support for IRQ handling.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-08 12:55:55 +08:00
Ley Foon Tan c983e92fcb nios2: TLB handling
This patch adds the TLB maintenance functions.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:54 +08:00
Ley Foon Tan 93c91cb228 nios2: Cache handling
This patch adds functionality required for cache maintenance.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:54 +08:00
Ley Foon Tan 71995e4d00 nios2: Process management
This patch adds support for thread creation and context switching.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:53 +08:00
Ley Foon Tan cbd15b3fad nios2: Page table management
This patch adds support for page table management.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:53 +08:00
Ley Foon Tan 862674d424 nios2: MMU Fault handling
This patch adds support for the handling of the MMU faults (exception
entry code introduced by a previous patch, kernel/entry.S).

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:52 +08:00
Ley Foon Tan 6b8baec4d6 nios2: I/O Mapping
This patch adds several definitions for I/O accessors and ioremap().

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:52 +08:00
Ley Foon Tan 5ccc6af5e8 nios2: Memory management
This patch contains the initialisation of the memory blocks, MMU
attributes and the memory map.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:51 +08:00
Ley Foon Tan 771a0163c0 nios2: Traps exception handling
This patch contains traps exception handling.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:50 +08:00
Ley Foon Tan 82ed08dd1b nios2: Exception handling
This patch contains the exception entry code (kernel/entry.S) and
misaligned exception.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:50 +08:00
Ley Foon Tan 27d22413e6 nios2: Kernel booting and initialization
This patch adds the kernel booting and the initial setup code.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:49 +08:00
Ley Foon Tan 39b505cb79 nios2: Assembly macros and definitions
This patch add assembly macros and definitions used in
the .S files across arch/nios2/ and together with asm-offsets.c.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:49 +08:00
Ley Foon Tan 00f634bc52 asm-generic: add generic futex for !CONFIG_SMP
Follow m68k futex implementation for !CONFIG_SMP.

Signed-off-by: Ley Foon Tan <lftan@altera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-12-08 12:55:48 +08:00
Linus Torvalds b2776bf714 Linux 3.18 2014-12-07 14:21:05 -08:00
Thomas Gleixner 74faaf7aa6 genirq: Move irq_chip_write_msi_msg() helper to core
No point to expose this to the world. The only legitimate user is the
core code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
2014-12-07 21:49:45 +01:00
Linus Torvalds 820b688bed Merge branch 'for-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "Three libata fixes for v3.18.  Nothing too interesting.  PCI ID ID and
  quirk additions to ahci and an error handling path fix in sata_fsl"

* 'for-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  ahci: disable MSI on SAMSUNG 0xa800 SSD
  sata_fsl: fix error handling of irq_of_parse_and_map
  AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
2014-12-07 12:00:14 -08:00
Linus Torvalds 19b022572b Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fix from Wim Van Sebroeck:
 "Fix the watchdog mask bit offset for Exynos7"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7
2014-12-06 11:27:25 -08:00
Linus Torvalds 15bd1e5cb3 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Here are two more driver bugfixes for I2C which would be good to have"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: cadence: Set the hardware time-out register to maximum value
  i2c: davinci: generate STP always when NACK is received
2014-12-06 11:26:01 -08:00
Abhilash Kesavan 5476b2b77d watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7
The watchdog mask bit offset listed for Exynos7 is incorrect.
Fix this.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Naveen Krishna Chatradhi <naveenkrishna.ch@gmail.com
Reviewd-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-12-05 20:21:35 +01:00
Linus Torvalds beb5af4033 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "Two final fixlets for 3.18:
   - Prevent microcode reload wreckage on 32bit
   - Unbreak cross compilation"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode: Limit the microcode reloading to 64-bit for now
  x86: Use $(OBJDUMP) instead of plain objdump
2014-12-05 10:47:19 -08:00
Linus Torvalds 32f0880b5a sound fixes for 3.18-final
Just one commit for adding a copule of HD-audio quirk entries.
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Merge tag 'sound-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixlet from Takashi Iwai:
 "Just one commit for adding a copule of HD-audio quirk entries"

* tag 'sound-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - Add headset Mic support for new Dell machine
2014-12-05 10:39:49 -08:00
Sonny Rao e2405a59e5 ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured
This will enable use of physical arch timers on rk3288, where each
core comes out of reset with a different virtual offset.  Using
physical timers will help with SMP booting on coreboot and older
u-boot and should also allow suspend-resume and cpu-hotplug to work on
all firmwares.

Firmware which does initialize the cpu registers properly at boot and
cpu-hotplug can remove this property from the device tree.

Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-12-05 10:27:16 -08:00
Guenter Roeck 4ad40cc568 hwmon: (lm75) Strengthen detect function
A chip returning 0x00 in all registers is erroneously detected
as LM75. Check hysteresis and temperature limit registers and
abort if both are 0 to reduce the likelyhood for this to happen.

Reviewed-by: Rob Coulson <rob.coulson@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-12-05 10:18:02 -08:00
Felipe Balbi d04169870b ARM: omap2plus_defconfig: enable ECAP and EHRPWM
Many of AM335x and AM437x hook backlight to
one of these two devices. By enabling their
drivers we make sure pwm-backlight can do
its thing.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-05 17:38:04 +01:00
Felipe Balbi 03472fe8df ARM: omap2plus_defconfig: enable XHCI
AM437x devices have a DWC3 IP inside of them.

The host side implementation of DWC3 is XHCI
compliant. By enabling XHCI driver, we get
the USB host port on AM437x Starter Kit working
out of the box.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-05 17:38:03 +01:00
Felipe Balbi 866d1808e7 ARM: omap2plus_defconfig: enable AM33XX SoC sound
Without this, sound on AM437x Starter Kit will
not work.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-05 17:38:03 +01:00
Felipe Balbi 8996a0bc62 ARM: omap2plus_defconfig: enable EDT FT5X06 touchscreen
AM437x Starter Kit ships with EDT FT5306 touchscreen
device. By enabling the driver we make sure touchscreen
will work out of the box.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-05 17:38:02 +01:00
Felipe Balbi 79f428f7fd ARM: omap2plus_defconfig: remove unwanted ethernet drivers
None of these drivers are known to be used on
any platform supported by omap2plus_defconfig,
by removing them we get a slight smaller kernel.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-05 17:38:01 +01:00
Ding Tianhong eb8a653137 arm64: remove the unnecessary arm64_swiotlb_init()
The commit 3690951fc6
(arm64: Use swiotlb late initialisation)
switches the DMA mapping code to swiotlb_tlb_late_init_with_default_size(),
the arm64_swiotlb_init() will not used anymore, so remove this function.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-12-05 12:19:52 +00:00
Mark Brown 176488fbc1 Merge remote-tracking branches 'regulator/topic/sky81452' and 'regulator/topic/stub' into regulator-next 2014-12-05 11:14:43 +00:00