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34,831 commits

Author SHA1 Message Date
Olof Johansson
61c324b4c1 Qualcomm ARM Based defconfig Updates for v3.16-2
* Enable qcom GSBI driver
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Merge tag 'qcom-defconfig-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/defconfig

Merge "Qualcomm ARM Based defconfig Updates for v3.16-2" from Kumar Gala:

* Enable qcom GSBI driver

* tag 'qcom-defconfig-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
  ARM: qcom: Enable GSBI driver in defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-30 20:33:39 -07:00
Olof Johansson
bb19501651 Qualcomm ARM Based Device Tree Updates for v3.16-2
* Updated MSM8660/MSM8960/MSM8974 dts for various updates or conformitity
   to binding specs
 * Added APQ8064 SoC and IFC6410 board device tree support
 * Added APQ8084 SoC and APQ8084-MTP board device tree support
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Merge tag 'qcom-dt-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/dt

Merge "Qualcomm ARM Based Device Tree Updates for v3.16-2" from Kumar Gala:

* Updated MSM8660/MSM8960/MSM8974 dts for various updates or conformitity
  to binding specs
* Added APQ8064 SoC and IFC6410 board device tree support
* Added APQ8084 SoC and APQ8084-MTP board device tree support

* tag 'qcom-dt-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
  ARM: dts: qcom: Add APQ8084-MTP board support
  ARM: dts: qcom: Add APQ8084 SoC support
  ARM: dts: qcom: Add initial APQ8064 SoC and IFC6410 board device trees
  ARM: dts: qcom: Update msm8660 device trees
  ARM: dts: qcom: Update msm8960 device trees
  ARM: dts: qcom: Update msm8974/apq8074 device trees

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-30 20:32:48 -07:00
Tushar Behera
345e9bf082 ARM: dts: add secure firmware support for exynos5420-arndale-octa
Arndale-Octa board is always configured to work with trustzone
firmware binary. Added DTS node entry to enable this support.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 04:03:31 +09:00
Kukjin Kim
7c5688e7fd ARM: EXYNOS: mcpm rename the power_down_finish
Since commit 166aaf39 ("ARM: 8029/1: mcpm: Rename the power_down_finish()
functions to be less confusing") changed the name of power_down_finish to
wait_for_cpu_powerdown, so use new member name wait_for_cpu_powerdown.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 03:01:36 +09:00
Abhilash Kesavan
f99acff1c8 ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoC
The exynos5800 is very similar to exynos5420. We can re-use
the existing MCPM support for exynos5800 for secondary boot
-up and switching.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:55:00 +09:00
Arnd Bergmann
9dfa92ec40 ARM: EXYNOS: Enable multi-platform build support
This makes it possible to enable the Exynos platform as part of a
multiplatform kernel.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:43:51 +09:00
Sachin Kamat
9a1013285f ARM: EXYNOS: Consolidate Kconfig entries
Instead of repeating the Kconfig entries for every SoC,
move them under ARCH_EXYNOS3, 4 and 5 and move the entries
common to 3, 4 and 5 under ARCH_EXYNOS.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:43:50 +09:00
Tarek Dakhran
723c9c7e16 ARM: EXYNOS: Add support for EXYNOS5410 SoC
EXYNOS5410 is SoC in Samsung's Exynos5 SoC series.
Add initial support for this SoC.

Signed-off-by: Tarek Dakhran <t.dakhran@samsung.com>
Signed-off-by: Vyacheslav Tyrtov <v.tyrtov@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:43:49 +09:00
Chanwoo Choi
6457158acc ARM: EXYNOS: Support secondary CPU boot of Exynos3250
This patch fix the offset of CPU boot address and don't
need to send smc call of SMC_CMD_CPU1BOOT command for
secondary CPU boot because Exynos3250 removes WFE in
secure mode.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:43:38 +09:00
Chanwoo Choi
940bc58de5 ARM: EXYNOS: Add Exynos3250 SoC ID
This patch add Exynos3250's SoC ID. Exynos 3250 is SoC that
is based on the 32-bit RISC processor for Smartphone.
Exynos3250 uses Cortex-A7 dual cores and has a target speed
of 1.0GHz.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:37:23 +09:00
Arun Kumar K
86c6f1488d ARM: EXYNOS: Add 5800 SoC support
Exynos5800 is an octa core SoC which is based on the 5420
platform. This patch adds the basic support for it in the
mach-exynos.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:37:16 +09:00
Pankaj Dubey
ed08f10397 ARM: EXYNOS: initial board support for exynos5260 SoC
This patch add basic arch side support for exynos5260 SoC.
Note that this is required to enable build for clock driver.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:37:09 +09:00
Kukjin Kim
fced6dee29 Merge branch 'v3.16-next/cleanup-samsung' into v3.16-next/platform-exynos 2014-05-31 02:36:49 +09:00
Chanwoo Choi
25023926a2 ARM: dts: add pmu sysreg node to exynos3250
This patch add pmusysreg node for Exynos3250 to access PMU
(Power Management Unit) register in a centralized way using
syscon driver.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:22:19 +09:00
Arun Kumar K
2c3b655c4a ARM: dts: correct the usb phy node in exynos5800-peach-pi
The vbus-supply property is wrongly updated in the
usbdrd node instead of the usbdrd_phy node. This patch
fixes the same.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:11:42 +09:00
Arun Kumar K
0ce9f47ab5 ARM: dts: correct the usb phy node in exynos5420-peach-pit
The vbus-supply property is wrongly updated in the
usbdrd node instead of the usbdrd_phy node. This patch
fixes the same.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:11:39 +09:00
Tarek Dakhran
107e6aad98 ARM: dts: add dts files for exynos5410 and exynos5410-smdk5410
Add initial device tree nodes for EXYNOS5410 SoC and SMDK5410 board.

Signed-off-by: Tarek Dakhran <t.dakhran@samsung.com>
Signed-off-by: Vyacheslav Tyrtov <v.tyrtov@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:18 +09:00
Tomasz Figa
5a992a9c98 ARM: dts: add dts files for exynos3250 SoC
This patch adds new exynos3250.dtsi to support Exynos3250 SoC
based on Cortex-A7 dual core and includes following dt nodes:

- GIC interrupt controller
- Pinctrl to control GPIOs
- Clock controller
- CPU information (Cortex-A7 dual core)
- UART to support serial port
- MCT (Multi Core Timer)
- ADC (Analog Digital Converter)
- I2C/SPI bus
- Power domain
- PMU (Performance Monitoring Unit)
- MSHC (Mobile Storage Host Controller)
- PWM (Pluse Width Modulation)
- AMBA bus
- sysram node for SYSRAM memory mapping

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hyunhee Kim <hyunhee.kim@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: devicetree@vger.kernel.org
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:17 +09:00
Arun Kumar K
f82785a92c ARM: dts: add mfc node for exynos5800
Adds the mfc node to exynos5800 which uses MFCv8.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:17 +09:00
Vivek Gautam
d3343157bb ARM: dts: add Vbus regulator for USB 3.0 on exynos5800-peach-pi
Add required fixed-regulator for VBUS supply for USB 3.0
controller phy.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:16 +09:00
Rahul Sharma
4c2d3f384c ARM: dts: enable fimd for exynos5800-peach-pi
Enable FIMD for peach-pi board.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:15 +09:00
Rahul Sharma
8b2f8379bb ARM: dts: enable display controller for exynos5800-peach-pi
Enable display controller with timing information for 1080p
panel in Exynos5800 peach-pi board.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:14 +09:00
Rahul Sharma
6a7da0d48f ARM: dts: enable hdmi for exynos5800-peach-pi
Enable hdmi for peach-pi board.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:13 +09:00
Arun Kumar K
853d2694ed ARM: dts: add dts file for exynos5800-peach-pi board
Adds support for google peach-pi board having the
Exynos5800 SoC.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:12 +09:00
Arun Kumar K
2ccd0b53da ARM: dts: add dts file for exynos5800 SoC
Most of the nodes of exynos5420 remains same for exynos5800.
So the exynos5420.dtsi is included in exynos5800 and the changed
node properties will be overriden.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:11 +09:00
Rahul Sharma
72f1da0185 ARM: dts: add dts file for exynos5260-xyref5260 board
The patch adds the dts file for xyref5260 board which
is based on exynos5260 SoC.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:10 +09:00
Rahul Sharma
16d7ff2642 ARM: dts: add dts files for exynos5260 SoC
The patch adds the dts files for exynos5260.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:09:04 +09:00
Sachin Kamat
64f5d1eb85 ARM: dts: update watchdog node name in exynos5440
Made it as per DT node naming convention <name@reg_addr>.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:06:54 +09:00
Sachin Kamat
2d7a5bd9d6 ARM: dts: use key code macros on Origen and Arndale boards
Key code macros improve readability on exnos4210-origen,
exynos4412-origen and exynos5250-arndale boards.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
[kgene.kim@samsung.com: squashed similar two patches]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:06:51 +09:00
Sachin Kamat
db0706790b ARM: dts: enable RTC and WDT nodes on Origen boards
Enabled RTC and WDT nodes on exynos4210-origen and
exynos4412-origen boards.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
[kgene.kim@samsung.com: squashed similar two patches]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-31 02:06:37 +09:00
Murali Karicheri
8b5742ad15 ARM/PCI: Call pcie_bus_configure_settings() to set MPS
Call pcie_bus_configure_settings() on ARM, like for other platforms.
pcie_bus_configure_settings() makes sure the MPS across the bus is uniform
and provides the ability to tune the MRSS and MPS to higher performance
values.  This is particularly important for embedded where there is no
firmware to program these PCIe settings for the OS.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
CC: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-30 10:50:57 -06:00
Olof Johansson
da98f44f27 Renesas ARM Based SoC Fixes for v3.16
This corrects a bug that will be introduced in v3.15.
 The bug causes audio playback to fail on the Armadillo800 EVA board.
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Merge tag 'renesas-fixes-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/fixes-non-critical

Merge "Renesas ARM Based SoC Fixes for v3.16" from Simon Horman:

This corrects a bug that will be introduced in v3.15.
The bug causes audio playback to fail on the Armadillo800 EVA board.

* tag 'renesas-fixes-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: armadillo800eva: fixup HDMI sound flags setting

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-30 09:23:35 -07:00
Linus Torvalds
fe45736f41 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "The usual random collection of relatively small ARM fixes"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8063/1: bL_switcher: fix individual online status reporting of removed CPUs
  ARM: 8064/1: fix v7-M signal return
  ARM: 8057/1: amba: Add Qualcomm vendor ID.
  ARM: 8052/1: unwind: Fix handling of "Pop r4-r[4+nnn],r14" opcode
  ARM: 8051/1: put_user: fix possible data corruption in put_user
  ARM: 8048/1: fix v7-M setup stack location
2014-05-29 18:31:09 -07:00
Lin Yongting
9c98666163 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
When configure kprobe events of ftrace with "stacktrace" option enabled
in arm, there is no stacktrace was recorded after the kprobe event was
triggered. The root cause is no save_stack_trace_regs() function implemented.

Implement the save_stack_trace_regs() function in arm, then ftrace will
call this architecture-related function to record the stacktrace into
ring buffer.

After this fix, stacktrace can be recorded, for example:

 # mount -t debugfs nodev /sys/kernel/debug
 # echo "p:netrx net_rx_action" >> /sys/kernel/debug/tracing/kprobe_events
 # echo 1 > /sys/kernel/debug/tracing/events/kprobes/netrx/enable
 # echo 1 > /sys/kernel/debug/tracing/options/stacktrace
 # echo 1 > /sys/kernel/debug/tracing/tracing_on
 # ping 127.0.0.1 -c 1
 # echo 0 > /sys/kernel/debug/tracing/tracing_on

 # cat /sys/kernel/debug/tracing/trace
 # tracer: nop
 #
 # entries-in-buffer/entries-written: 12/12   #P:1
 #
 #                              _-----=> irqs-off
 #                             / _----=> need-resched
 #                            | / _---=> hardirq/softirq
 #                            || / _--=> preempt-depth
 #                            ||| /     delay
 #           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
 #              | |       |   ||||       |         |
             <------ missing some entries ---------------->
             ping-1200  [000] dNs1   667.603250: netrx: (net_rx_action+0x0/0x1f8)
             ping-1200  [000] dNs1   667.604738: <stack trace>
  => net_rx_action
  => do_softirq
  => local_bh_enable
  => ip_finish_output
  => ip_output
  => ip_local_out
  => ip_send_skb
  => ip_push_pending_frames
  => raw_sendmsg
  => inet_sendmsg
  => sock_sendmsg
  => SyS_sendto
  => ret_fast_syscall

Signed-off-by: Lin Yongting <linyongting@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 01:12:32 +01:00
Paul Bolle
2961b4bf70 ARM: 8065/1: remove last use of CONFIG_CPU_ARM710
Support for ARM710 CPUs was removed in v3.5. Now remove the last code
depending on its Kconfig macro.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 01:12:30 +01:00
Arun K S
3780f7ab49 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction
We will reach fixup handler when one thread(say cpu0) caused an undefined exception, while another thread(say cpu1) is unmmaping the page.

Fixup handler returns to the next userspace instruction which has caused the undef execption, rather than going to the same instruction.

ARM ARM says that after undefined exception, the PC will be pointing
to the next instruction. ie +4 offset in case of ARM and +2 in case of Thumb

And there is no correction offset passed to vector_stub in case of
undef exception.

File: arch/arm/kernel/entry-armv.S +1085
vector_stub     und, UND_MODE

During an undefined exception, in normal scenario(ie when ldrt
instruction does not cause an abort) after resorting the context in
VFP hardware, the PC is modified as show below before jumping to
ret_from_exception which is in r9.

File: arch/arm/vfp/vfphw.S +169
@ The context stored in the VFP hardware is up to date with this thread
vfp_hw_state_valid:
   tst     r1, #FPEXC_EX
   bne     process_exception     @ might as well handle the pending
                                 @ exception before retrying branch
                                 @ out before setting an FPEXC that
                                 @ stops us reading stuff
        VFPFMXR FPEXC, r1        @ Restore FPEXC last
        sub     r2, r2, #4       @ Retry current instruction - if Thumb
        str     r2, [sp, #S_PC]  @ mode it's two 16-bit instructions,
                                 @ else it's one 32-bit instruction, so
                                 @ always subtract 4 from the following
                                 @ instruction address.

But if ldrt results in an abort, we reach the fixup handler and return
to ret_from_execption without correcting the pc.

This patch modifes the fixup handler to re-execute the same instruction which caused undefined execption.

Signed-off-by: Vinayak Menon <vinayakm.list@gmail.com>
Signed-off-by: Arun KS <getarunks@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 01:12:28 +01:00
Will Deacon
8a87411b64 ARM: 8047/1: rwsem: use asm-generic rwsem implementation
asm-generic offers an atomic-add based rwsem implementation, which
can avoid the need for heavier, spinlock-based synchronisation on the
fast path.

This patch makes use of the optimised implementation for ARM CPUs.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 01:12:25 +01:00
Russell King
8ef418c717 ARM: l2c: trial at enabling some Cortex-A9 optimisations
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:41 +01:00
Russell King
560be6136b ARM: l2c: add warnings for stuff modifying aux_ctrl register values
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:38 +01:00
Russell King
314e47b7b6 ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
As we have now removed all instances of the L2C-310 having its cache
size "modified" via platform/SoC code, discourage new cases showing
up by printing a warning.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:37 +01:00
Russell King
678ea28b7c ARM: l2c: remove old .set_debug method
We no longer need or require the .set_debug method; we handle everything
it used to do via the .write_sec method instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:35 +01:00
Russell King
851d6d7117 ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this
L2X0_AUX_CTRL_MASK is not useful for PL310s.  It would be better if
people thought about their value for this rather than cargo-cult
programming.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:32 +01:00
Russell King
dcf9c7f9f4 ARM: l2c: zynq: convert to generic l2c OF initialisation
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:30 +01:00
Russell King
2c4133c5d0 ARM: l2c: zynq: remove cache size override
The cache size should already be present in the L2 cache auxiliary
control register: it is part of the integration process to configure
the hardware IP.  Most platforms get this right, yet still many
cargo-cult program, and assume that they always need specifying to
the L2 cache code.  Remove them so we can find out which really need
this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:28 +01:00
Russell King
b28dd4ac66 ARM: l2c: vexpress: convert to generic l2c OF initialisation
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:25 +01:00
Russell King
060bf2af12 ARM: l2c: vexpress ca9x4: move L2 cache initialisation earlier
It is beneficial to have the L2 cache up and running earlier in the
system boot.  Not only will this allow for simpler code when we come to
enable some features, but it also means that we get a more accurate
bogomips value for the udelay() loop.  Calibrating the loop with the
L2 cache off, and then running with the L2 cache on is not the best
idea.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:24 +01:00
Russell King
c59917f877 ARM: l2c: ux500: don't try to change the L2 cache auxiliary control register
ux500 can't change the auxiliary control register, so there's no point
passing values to try and modify it to the l2x0 init functions.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:21 +01:00
Russell King
c4a202c8ae ARM: l2c: ux500: remove cache size override
The cache size should already be present in the L2 cache auxiliary
control register: it is part of the integration process to configure
the hardware IP.  Most platforms get this right, yet still many
cargo-cult program, and assume that they always need specifying to
the L2 cache code.  Remove them so we can find out which really need
this.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:19 +01:00
Russell King
6716173347 ARM: l2c: ux500: implement dummy write_sec method
ux500 can't write to any of the secure registers on the L2C controllers,
so provide a dummy handler which ignores all writes.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:17 +01:00
Russell King
00123d9a8d ARM: l2c: tegra: convert to generic l2c OF initialisation
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-05-30 00:50:15 +01:00