Commit Graph

160 Commits

Author SHA1 Message Date
Alex Smith
4ace6139bf MIPS: SMP: Don't increment irq_count multiple times for call function IPIs
The majority of SMP platforms handle their IPIs through do_IRQ()
which calls irq_{enter/exit}(). When a call function IPI is received,
smp_call_function_interrupt() is called which also calls
irq_{enter,exit}(), meaning irq_count is raised twice.

When tick broadcasting is used (which is implemented via a call
function IPI), this incorrectly causes all CPU idle time on the core
receiving broadcast ticks to be accounted as time spent servicing
IRQs, as account_process_tick() will account as such if irq_count is
greater than 1. This results in 100% CPU usage being reported on a
core which receives its ticks via broadcast.

This patch removes the SMP smp_call_function_interrupt() wrapper which
calls irq_{enter,exit}(). Platforms which handle their IPIs through
do_IRQ() now call generic_smp_call_function_interrupt() directly to
avoid incrementing irq_count a second time. Platforms which don't
(loongson, sgi-ip27, sibyte) call generic_smp_call_function_interrupt()
wrapped in irq_{enter,exit}().

Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10770/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-03 09:25:12 +02:00
Brian Norris
cc23cafe2b MIPS: netlogic: remove unnecessary MTD partition probe specification
The cmdlinepart parser is already supported in the default probe.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10071/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:52:43 +02:00
Ralf Baechle
3e20a26b02 Merge branch '4.0-fixes' into mips-for-linux-next 2015-04-13 16:03:32 +02:00
Ganesan Ramalingam
872cd4c2c6 MIPS: Netlogic: Fix for SATA PHY init
Update to the SATA PHY initialization. This is needed for SATA detection
to succeed in all configurations.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8886/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-10 15:41:43 +02:00
Ralf Baechle
04f156c9a5 MIPS: Netlogic: Fix double inclusion of <asm/netlogic/common.h>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-08 01:10:51 +02:00
Ganesan Ramalingam
94e37fc22a MIPS: Netlogic: Add built-in dts for XLP5xx boards
Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8896/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:54 +02:00
Subhendu Sekhar Behera
065d7029a8 MIPS: Netlogic: i2c IRQ mappings for XLP9XX
The new I2C block in XLP9XX has 4 interrupts, add the mapping for
these in nlm_hal.c

Signed-off-by: Subhendu Sekhar Behera <sbehera@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8897/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:53 +02:00
Ganesan Ramalingam
c982232a3c MIPS: Netlogic: Add irq mapping and setup for XHCI port 3
Add support for third XHCI port in XLPII processors.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8895/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:53 +02:00
Jayachandran C
94e2b96ece MIPS: Netlogic: Do not enable SUE for core
Enabling the SUE bit for core can can result in rare cache errors
which are difficult to track down, so do not enable it. This can
cause a minor performance loss in some tests.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8894/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:53 +02:00
Jayachandran C
5084e93dfe MIPS: Netlogic: Handle XLP hardware errata
Core configuration register IFU_BRUB_RESERVE has to be setup to handle
a silicon errata which can result in a CPU hang.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8902/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:52 +02:00
Jayachandran C
b3b73ae62c MIPS: Netlogic: Update function to read DRAM BARs
Change name of xlp_get_dram_map to nlm_get_dram_map to be consistent
with the rest of the functions in the file. Pass the the size of the
array 'dram_map' to the function, and ensure that it does not write
past the end of the array.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8892/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:52 +02:00
Jayachandran C
c273652546 MIPS: Netlogic: Move cores per node out of multi-node.h
Use the current_cpu_data package field to get the node of the current CPU.

This allows us to remove xlp_cores_per_node and move nlm_threads_per_node()
and nlm_cores_per_node() to netlogic/common.h, which simplifies code.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8889/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:50 +02:00
Jayachandran C
65fecc2725 MIPS: Netlogic: Use MIPS topology.h
commit bda4584cd9 ("MIPS: Support CPU topology files in sysfs")
added topology related macros for all MIPS platforms and commit
bbbf6d8768 ("MIPS: NL: Fix nlm_xlp_defconfig build error")
removed most of the contents from mach-netlogic/topology.h.

The netlogic specific topology is not needed anymore, we just need
to setup the package field in current_cpu_data.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8888/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:50 +02:00
Ganesan Ramalingam
a3613be442 MIPS: Netlogic: Fix frequency calculation register
Change the PIC frequency calculation to use the register that has the
current configuration. The existing code used the register that is
written to change frequency, which can have an invalid value if the
firmware did not set it up correctly.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8885/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:49 +02:00
Jayachandran C
72e0605b43 MIPS: Netlogic: Disable writing IRT for disabled blocks
If the device header of a block is not present, return invalid IRT
value so that we do not program an incorrect offset.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8882/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:48 +02:00
Ganesan Ramalingam
9bbc6c7d35 MIPS: Netlogic: Fix cop0 prid check in AHCI init
PRID register should be masked with IMP_MASK to get processor ID.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8883/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:48 +02:00
Qingmin Liu
8db23f7df6 MIPS: Netlogic: Fix nlm_xlp2_get_pic_frequency to use ref_div
The variable ref_div is initialized to the correct divisor but not
used in the frequency calculation. This caused incorrect frequency
to be reported when the clock divisor is not 3.

Signed-off-by: Qingmin Liu <qingmin@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8884/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:48 +02:00
Shanghui Liu
46ab6f24ac MIPS: Netlogic: Fix wait for slave CPUs
For core 0, the condition of "cpu == bootcpu" is always true, so it
does not wait for other three threads to become ready. Fix this by
using correct check.

Signed-off-by: Shanghui Liu <shliu@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8881/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:47 +02:00
Tejun Heo
729d8e093c mips: use %*pb[l] to print bitmaps including cpumasks and nodemasks
printk and friends can now format bitmaps using '%*pb[l]'.  cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-13 21:21:36 -08:00
Florian Fainelli
3964917c6b MIPS: Netlogic: handle modular AHCI builds
Commits a951440971 ("MIPS: Netlogic: Support for XLP3XX on-chip SATA")
and fedfcb1137 ("MIPS: Netlogic: XLP9XX on-chip SATA support") added
ahci-init and ahci-init-xlp2 as objects to build when CONFIG_SATA_AHCI
is enabled.

If CONFIG_SATA_AHCI is made modular, these two files will also get built
as modules (obj-m), which will result in the following linking failure:

ERROR: "nlm_set_pic_extra_ack" [arch/mips/netlogic/xlp/ahci-init.ko]
undefined!
ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/ahci-init.ko] undefined!
ERROR: "nlm_nodes" [arch/mips/netlogic/xlp/ahci-init-xlp2.ko] undefined!
ERROR: "nlm_set_pic_extra_ack"
[arch/mips/netlogic/xlp/ahci-init-xlp2.ko] undefined!
ERROR: "xlp_socdev_to_node" [arch/mips/netlogic/xlp/ahci-init-xlp2.ko]
undefined!
ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/ahci-init-xlp2.ko]
undefined!

Just check whether CONFIG_SATA_AHCI is defined for this build, and if
that is the case, add these objects to the list of built-in object
files.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: ganesanr@broadcom.com
Cc: jchandra@broadcom.com
Patchwork: https://patchwork.linux-mips.org/patch/7855/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24 07:44:06 +01:00
Florian Fainelli
717ce64639 MIPS: Netlogic: handle modular USB case
Commit 1004165f34 ("MIPS: Netlogic: USB support for XLP") and then
commit 9eac3591e7 ("MIPS: Netlogic: Add support for USB on XLP2xx")
added usb-init and usb-init-xlp2 as objects to build when CONFIG_USB is
enabled.

If CONFIG_USB is made modular, these two files will also get built as
modules (obj-m), which will result in the following linking failure:

ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/usb-init.ko] undefined!
ERROR: "nlm_nodes" [arch/mips/netlogic/xlp/usb-init-xlp2.ko] undefined!
ERROR: "nlm_set_pic_extra_ack" [arch/mips/netlogic/xlp/usb-init-xlp2.ko]
undefined!
ERROR: "xlp_socdev_to_node" [arch/mips/netlogic/xlp/usb-init-xlp2.ko]
undefined!
ERROR: "nlm_io_base" [arch/mips/netlogic/xlp/usb-init-xlp2.ko]
undefined!

Just check whether CONFIG_USB is defined for this build, and if that is
the case, add these objects to the list of built-in object files.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: ganesanr@broadcom.com
Cc: jchandra@broadcom.com
Patchwork: https://patchwork.linux-mips.org/patch/7854/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24 07:44:06 +01:00
Andrew Bresticker
36094619e4 MIPS: Netlogic: Move device-trees to arch/mips/boot/dts/
Move the Netlogic XLP device-trees to arch/mips/boot/dts/ and update the
Makefiles accordingly.  A built-in device-tree is optional, so select
BUILTIN_DTB when it is requested.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
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: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Jayachandran C <jchandra@broadcom.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7560/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-09-22 13:35:50 +02:00
Linus Torvalds
82abb273d8 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 - three fixes for 3.15 that didn't make it in time
 - limited Octeon 3 support.
 - paravirtualization support
 - improvment to platform support for Netlogix SOCs.
 - add support for powering down the Malta eval board in software
 - add many instructions to the in-kernel microassembler.
 - add support for the BPF JIT.
 - minor cleanups of the BCM47xx code.
 - large cleanup of math emu code resulting in significant code size
   reduction, better readability of the code and more accurate
   emulation.
 - improvments to the MIPS CPS code.
 - support C3 power status for the R4k count/compare clock device.
 - improvments to the GIO support for older SGI workstations.
 - increase number of supported CPUs to 256; this can be reached on
   certain embedded multithreaded ccNUMA configurations.
 - various small cleanups, updates and fixes

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (173 commits)
  MIPS: IP22/IP28: Improve GIO support
  MIPS: Octeon: Add twsi interrupt initialization for OCTEON 3XXX, 5XXX, 63XX
  DEC: Document the R4k MB ASIC mini interrupt controller
  DEC: Add self as the maintainer
  MIPS: Add microMIPS MSA support.
  MIPS: Replace calls to obsolete strict_strto call with kstrto* equivalents.
  MIPS: Replace obsolete strict_strto call with kstrto
  MIPS: BFP: Simplify code slightly.
  MIPS: Call find_vma with the mmap_sem held
  MIPS: Fix 'write_msa_##' inline macro.
  MIPS: Fix MSA toolchain support detection.
  mips: Update the email address of Geert Uytterhoeven
  MIPS: Add minimal defconfig for mips_paravirt
  MIPS: Enable build for new system 'paravirt'
  MIPS: paravirt: Add pci controller for virtio
  MIPS: Add code for new system 'paravirt'
  MIPS: Add functions for hypervisor call
  MIPS: OCTEON: Add OCTEON3 to __get_cpu_type
  MIPS: Add function get_ebase_cpunum
  MIPS: Add minimal support for OCTEON3 to c-r4k.c
  ...
2014-06-09 18:10:34 -07:00
Ganesan Ramalingam
fedfcb1137 MIPS: Netlogic: XLP9XX on-chip SATA support
The XLP9XX SoC has an on-chip SATA controller with two ports. Add
ahci-init-xlp2.c to initialize the controller, setup the glue logic
registers, fixup PCI quirks and setup interrupt ack logic.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6913/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:51:47 +02:00
Ganesan Ramalingam
a951440971 MIPS: Netlogic: Support for XLP3XX on-chip SATA
XLP3XX includes an on-chip SATA controller with 4 ports. The
controller needs glue logic initialization and PCI fixup before
it can be used with the standard AHCI driver.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6872/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:51:25 +02:00
Yonghong Song
1c98398662 MIPS: Netlogic: Add support for XLP5XX
Add support for the XLP5XX processor which is an 8 core variant of the
XLP9XX. Add XLP5XX cases to code which earlier handled XLP9XX.

Signed-off-by: Yonghong Song <ysong@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6871/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:50:38 +02:00
Jayachandran C
edf3ed5e69 MIPS: Netlogic: Update XLP9XX/2XX core freq calculation
Calculate XLP 9XX and 2XX core frequency from the per-core PLL. This
should give the correct value for all board configurations.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6870/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:50:13 +02:00
Ganesan Ramalingam
c065909e47 MIPS: Netlogic: PIC freq calculation for XLP 9XX/2XX
Update PIC frequency calculation for XLP9XX and 2XX processors using
the correct PLL registers. This should work for all possible board
configurations.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6876/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:49:41 +02:00
Jayachandran C
77bef0e4b5 MIPS: Netlogic: Fix XLP9XX pic entry
Add the compatible property to the PIC entry. Also fix up the nodename
to use the correct address.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6869/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:49:21 +02:00
Jayachandran C
5874743ea8 MIPS: Netlogic: Use PRID_IMP_MASK macro
Use PRID_IMP_MASK macro instead of 0xff00 to extract the processor
type.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6868/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:49:02 +02:00
Jayachandran C
0d57eba02d MIPS: Netlogic: IRQ mapping for some more SoC blocks
Add IRQ to IRT (PIC interupt table index) mapping for SATA, GPIO, NAND
and SPI interfaces on the XLP SoC. Fix offsets for few blocks and add
device IDs for a few blocks.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6911/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:48:42 +02:00
Jayachandran C
e9126418dd MIPS: Netlogic: Enable access to more than 64GB
The ELPA bit needs to be set in the PAGEGRAIN register to enable
access to >64GB physical address. Update reset.S to do this from
every hardware thread.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6866/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:48:25 +02:00
Jayachandran C
a3deecfaa3 MIPS: Netlogic: Reduce size of reset code
Update thread wakeup function to use scratch registers for saving SP and
RA. Move the register restore code needed for thread 0 to the calling
function. This reduces the size of code copied to the reset vector.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6910/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:47:56 +02:00
Jayachandran C
2e240ddd09 MIPS: Netlogic: Use cpumask_scnprintf for wakeup_mask
Use standard function to print cpumask. Also fixup a typo in the same
file.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: g@linux-mips.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6909/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:47:36 +02:00
Jayachandran C
9de10ffb54 MIPS: Netlogic: Warn on invalid irq
Warn and return if invalid IRQ is passed to nlm_set_pic_extra_ack.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6862/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:46:07 +02:00
Jayachandran C
3e468567c2 MIPS: Netlogic: Move coremask setup to nlm_node_init
This is needed for nlm_node_present(0) to work on uniprocessor compile.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6861/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30 16:45:19 +02:00
Ralf Baechle
1461df59f0 MIPS: SMP: Remove plat_smp_ops cpus_done method.
Nothing was using the method and there isn't any need for this hook.  This
leaves smp_cpus_done() empty for the moment.

As suggested by Paul Bolle <pebolle@tiscali.nl>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-27 11:06:42 +02:00
Rob Herring
ccf3356e6b of/fdt: consolidate built-in dtb section variables
Unify the various architectures __dtb_start and __dtb_end definitions
moving them into of_fdt.h.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-xtensa@linux-xtensa.org
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>
2014-04-30 00:59:13 -05:00
Rob Herring
e1b77baed6 mips: xlp: copy built-in DTB out of init section
The existing code is buggy because built-in DTBs are in init memory.
It is also broken because the reserved bootmem was then freed after
unflattening, but the unflattened tree points to data in the flat tree.
Fix this by using the unflatten_and_copy_device_tree function.

This removes all accesses to FDT header data by the arch code.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Tested-by: Grant Likely <grant.likely@linaro.org>
2014-04-30 00:55:59 -05:00
Linus Torvalds
cdfc83075f Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "The most notable new addition inside this pull request is the support
  for MIPS's latest and greatest core called "inter/proAptiv".  The
  patch series describes this core as follows.

    "The interAptiv is a power-efficient multi-core microprocessor
     for use in system-on-chip (SoC) applications. The interAptiv combines
     a multi-threading pipeline with a coherence manager to deliver improved
     computational throughput and power efficiency. The interAptiv can
     contain one to four MIPS32R3 interAptiv cores, system level
     coherence manager with L2 cache, optional coherent I/O port,
     and optional floating point unit."

  The platform specific patches touch all 3 Broadcom families.  It adds
  support for the new Broadcom/Netlogix XLP9xx Soc, building a common
  BCM63XX SMP kernel for all BCM63XX SoCs regardless of core type/count
  and full gpio button/led descriptions for BCM47xx.

  The rest of the series are cleanups and bug fixes that are MIPS
  generic and consist largely of changes that Imgtec/MIPS had published
  in their linux-mti-3.10.git stable tree.  Random other cleanups and
  patches preparing code to be merged in 3.15"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (139 commits)
  mips: select ARCH_MIGHT_HAVE_PC_SERIO
  mips: delete non-required instances of include <linux/init.h>
  MIPS: KVM: remove shadow_tlb code
  MIPS: KVM: use common EHINV aware UNIQUE_ENTRYHI
  mips/ide: flush dcache also if icache does not snoop dcache
  MIPS: BCM47XX: fix position of cpu_wait disabling
  MIPS: BCM63XX: select correct MIPS_L1_CACHE_SHIFT value
  MIPS: update MIPS_L1_CACHE_SHIFT based on MIPS_L1_CACHE_SHIFT_<N>
  MIPS: introduce MIPS_L1_CACHE_SHIFT_<N>
  MIPS: ZBOOT: gather string functions into string.c
  arch/mips/pci: don't check resource with devm_ioremap_resource
  arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
  bcma: gpio: don't cast u32 to unsigned long
  ssb: gpio: add own IRQ domain
  MIPS: BCM47XX: fix sparse warnings in board.c
  MIPS: BCM47XX: add board detection for Linksys WRT54GS V1
  MIPS: BCM47XX: fix detection for some boards
  MIPS: BCM47XX: Enable buttons support on SSB
  MIPS: BCM47XX: Convert WNDR4500 to new syntax
  MIPS: BCM47XX: Use "timer" trigger for status LEDs
  ...
2014-01-30 17:20:32 -08:00
Paul Gortmaker
3b2663ca84 mips: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6320/
2014-01-24 22:39:56 +01:00
Jayachandran C
e92e1d0d78 MIPS: Netlogic: Core wakeup improvements
Move wakeup to after early console. This will allow us to display error
messages when cores are not woken up.  Also reduce the wait time for core
to come up.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6303/
2014-01-24 22:39:50 +01:00
Jayachandran C
194d315da8 MIPS: Netlogic: Remove XLR early serial setup
The early serial code is not needed because we already have early
printk support provided by common/earlycons.c

This change also fixes the following build error that occurs when
CONFIG_SERIAL_8250 is not configured for Netlogic XLR boards:

arch/mips/built-in.o: In function `nlm_early_serial_setup':
setup.c:(.init.text+0x274): undefined reference to `early_serial_setup'
make: *** [vmlinux] Error 1

Reported-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6083/
2014-01-24 22:39:50 +01:00
Jayachandran C
a17fca649c MIPS: Netlogic: Add default DTB for XLP9XX SoC
Add a default device tree fie for XLP9XX boards, and add code to use
this device tree if no DTB is passed to the kernel.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6287/
2014-01-24 22:39:50 +01:00
Jayachandran C
5fcbdf7cac MIPS: Netlogic: XLP9XX PIC OF support
Support for adding legacy IRQ domain for XLP9XX. The node id of the
PIC has to be calulated differently for XLP9XX.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6286/
2014-01-24 22:39:50 +01:00
Ganesan Ramalingam
3262b21ef8 MIPS: Netlogic: XLP9XX USB support
XLP9XX has a USB 3.0 controller on-chip with 2 xHCI ports. The USB
block is similar to the one on XLP2XX, so update usb-init-xlp2.c
to handle XLP9XX as well.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6285/
2014-01-24 22:39:49 +01:00
Jayachandran C
b6ba1c5294 MIPS: PCI: Netlogic XLP9XX support
Add PCI support for Netlogic XLP9XX. The PCI registers and
SoC bus numbers have changed in XLP9XX.

Also skip a few (bus,dev,fn) combinations which have issues when
read.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6284/
2014-01-24 22:39:49 +01:00
Jayachandran C
98d4884ca5 MIPS: Netlogic: Add cpu to node mapping for XLP9XX
XLP9XX has 20 cores per node, opposed to 8 on earlier XLP8XX.
Update code that calculates node id from cpu id to handle this.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6283/
2014-01-24 22:39:49 +01:00
Jayachandran C
e7aa6c66b0 MIPS: Netlogic: XLP9XX bridge and DRAM code
Update bridge code. Add code to the XLP9XX registers for DRAM
size, limit and node when running on XLPXX

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6282/
2014-01-24 22:39:49 +01:00
Jayachandran C
61673de131 MIPS: Netlogic: XLP9XX UART offset
Update IO offset of the early console UART.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6281/
2014-01-24 22:39:48 +01:00