Commit Graph

101 Commits

Author SHA1 Message Date
Linus Torvalds
10d0c9705e DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
 
 - Cross arch clean-up and consolidation of early DT scanning code.
 - Clean-up and removal of arch prom.h headers. Makes arch specific
   prom.h optional on all but Sparc.
 - Addition of interrupts-extended property for devices connected to
   multiple interrupt controllers.
 - Refactoring of DT interrupt parsing code in preparation for deferred
   probe of interrupts.
 - ARM cpu and cpu topology bindings documentation.
 - Various DT vendor binding documentation updates.
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Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DeviceTree updates for 3.13.  This is a bit larger pull request than
  usual for this cycle with lots of clean-up.

   - Cross arch clean-up and consolidation of early DT scanning code.
   - Clean-up and removal of arch prom.h headers.  Makes arch specific
     prom.h optional on all but Sparc.
   - Addition of interrupts-extended property for devices connected to
     multiple interrupt controllers.
   - Refactoring of DT interrupt parsing code in preparation for
     deferred probe of interrupts.
   - ARM cpu and cpu topology bindings documentation.
   - Various DT vendor binding documentation updates"

* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
  powerpc: add missing explicit OF includes for ppc
  dt/irq: add empty of_irq_count for !OF_IRQ
  dt: disable self-tests for !OF_IRQ
  of: irq: Fix interrupt-map entry matching
  MIPS: Netlogic: replace early_init_devtree() call
  of: Add Panasonic Corporation vendor prefix
  of: Add Chunghwa Picture Tubes Ltd. vendor prefix
  of: Add AU Optronics Corporation vendor prefix
  of/irq: Fix potential buffer overflow
  of/irq: Fix bug in interrupt parsing refactor.
  of: set dma_mask to point to coherent_dma_mask
  of: add vendor prefix for PHYTEC Messtechnik GmbH
  DT: sort vendor-prefixes.txt
  of: Add vendor prefix for Cadence
  of: Add empty for_each_available_child_of_node() macro definition
  arm/versatile: Fix versatile irq specifications.
  of/irq: create interrupts-extended property
  microblaze/pci: Drop PowerPC-ism from irq parsing
  of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
  of/irq: Use irq_of_parse_and_map()
  ...
2013-11-12 16:52:17 +09:00
Jayachandran C
e363bbac31 MIPS: Netlogic: replace early_init_devtree() call
The early_init_devtree() API was removed in linux-next for 3.13 with
commit "mips: use early_init_dt_scan". This causes Netlogic XLP compile
to fail:

arch/mips/netlogic/xlp/setup.c:101: undefined reference to `early_init_devtree'

Add xlp_early_init_devtree() which uses the __dt_setup_arch() to
handle early device tree related initialization to fix this.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-11-06 16:14:04 -06:00
Ralf Baechle
f7777dcc75 MIPS: Panic messages should not end in \n.
Panic() is going to add a \n itself and it's annoying if a panic message rolls
of the screen on a device with no scrollback.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29 21:24:19 +01:00
Maciej W. Rozycki
8ff374b9c2 MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks
Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout.
The change does not touch places that use shifted or partial masks.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5838/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-18 20:25:19 +02:00
Ganesan Ramalingam
1cf0e1be81 MIPS: Netlogic: Built-in DTB for XLP2xx SoC boards
Add a default built-in device tree for XLP2xx SoC. The new file
xlp_fvp.dts has updated entries for I2C and memory.

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/5705/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:20 +02:00
Ganesan Ramalingam
9eac3591e7 MIPS: Netlogic: Add support for USB on XLP2xx
Add USB intialization code to handle the new XLP2XX USB 3.0 block.
This adds xlp/usb-init-xlp2.c to initialize the XLP2XX USB glue-logic
for XHCI and EHCI. Interrupt and IO offset code in xlp-hal/iomap.h
and xlp/nlm_hal.c is also updated for the new USB block.

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/5744/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:20 +02:00
Ganesan Ramalingam
e5be1fd007 MIPS: Netlogic: XLP2xx update for I2C controller
XLP2xx has a new I2C controller which has 4 buses connected to
it. Update the IO offset and IRQ mapping code to reflect this.

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/5707/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:20 +02:00
Jayachandran C
c49e42aba8 MIPS: Netlogic: Core wakeup changes for XLP2XX
On XLP2xx, wakeup code does not need to enable clock on the core.
Update xlp/wakeup.c to handle this.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5703/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:19 +02:00
Ganesan Ramalingam
57ceb4b020 MIPS: Netlogic: XLP2XX CPU and PIC frequency
Add code to calculate the CPU and PIC frequency for XLP2XX SoCs.

Since the PIC frequency on XLP2XX can be configured, add a new macro
pic_timer_freq() to be used in netlogic/common/time.c.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: Ganesan Ramalingam <ganesanr@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5701/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:19 +02:00
Jayachandran C
5b6ff35d33 MIPS: Netlogic: Call xlp_mmu_init on all threads
The config7/config4 register has to be written on all the threads.
This does not cause any problems in XLP, but is needed for XLPII

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5700/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:19 +02:00
Jayachandran C
4ca86a2ff3 MIPS: Netlogic: Add support for XLP2XX
XLP2XX is first in the series of 28nm XLPII processors.

The changes are to:
* Add processor ID for XLP2XX to asm/cpu.h and kernel/cpu-probe.c.
* Add a cpu_is_xlpii() function to check for XLPII processors.
* Update xlp_mmu_init() to use config4 to enable extended TLB.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:19 +02:00
Jayachandran C
13314a91f0 MIPS: Netlogic: Fix DT flash size parameter
The flash chipselects can span 32MB, fix this in the built-in device
tree.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5704/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:18 +02:00
Jayachandran C
4f848ba5a0 MIPS: Netlogic: Remove memory section from built-in DT
Do not pass a memory section in the built-in DTB, and let the
boot code use the values from the DRAM BARs.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5699/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:18 +02:00
Jayachandran C
a2ba6cd6e6 MIPS: Netlogic: Read memory from DRAM BARs
Read the memory from the Bridge DRAM BARs, if it is not passed in
from the device tree. This will allow us to remove memory configuration
from built in device trees.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5743/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03 23:22:18 +02:00
Alexandru Juncu
83eefabf9b MIPS:Netlogic: Remove redundant value in operation.
Removed parameters checked twice in logical OR operation.
Suggested by coccinelle and manually verified.

Signed-off-by: Alexandru Juncu <alexj@rosedu.org>
Cc: jchandra@broadcom.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5627/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-08-26 15:31:54 +02:00
Linus Torvalds
1b05018045 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "MIPS fixes for 3.11.  Half of then is for Netlogic the remainder
  touches things across arch/mips.

  Nothing really dramatic and by rc1 standards MIPS will be in fairly
  good shape with this applied.  Tested by building all MIPS defconfigs
  of which with this pull request four platforms won't build.  And yes,
  it boots also on my favorite test systems"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: kvm: Kconfig: Drop HAVE_KVM dependency from VIRTUALIZATION
  MIPS: Octeon: Fix DT pruning bug with pip ports
  MIPS: KVM: Mark KVM_GUEST (T&E KVM) as BROKEN_ON_SMP
  MIPS: tlbex: fix broken build in v3.11-rc1
  MIPS: Netlogic: Add XLP PIC irqdomain
  MIPS: Netlogic: Fix USB block's coherent DMA mask
  MIPS: tlbex: Fix typo in r3000 tlb store handler
  MIPS: BMIPS: Fix thinko to release slave TP from reset
  MIPS: Delete dead invocation of exception_exit().
2013-07-19 15:10:01 -07:00
Jayachandran C
628f0650ea MIPS: Netlogic: Add XLP PIC irqdomain
Add a legacy irq domain for the XLP PIC interrupts. This will be used
when interrupts are assigned from the device tree. This change is required
after commit c5cdc67 "irqdomain: Remove temporary MIPS workaround code".

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: Jayachandran C <jchandra@broadcom.com>
Patchwork: https://patchwork.linux-mips.org/patch/5597/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-19 10:24:12 +02:00
Ganesan Ramalingam
35ac7840bc MIPS: Netlogic: Fix USB block's coherent DMA mask
The on-chip USB controller on Netlogic XLP does not suppport
DMA beyond 32-bit physical address. Set the coherent_dma_mask
of the USB in its PCI fixup to support this.

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/5596/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-19 10:23:14 +02:00
Paul Gortmaker
078a55fc82 MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code
commit 3747069b25e419f6b51395f48127e9812abc3596 upstream.

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
and are flagged as __cpuinit  -- so if we remove the __cpuinit from
the arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
related content into no-ops as early as possible, since that will get
rid of these warnings.  In any case, they are temporary and harmless.

Here, we remove all the MIPS __cpuinit from C code and __CPUINIT
from asm files.  MIPS is interesting in this respect, because there
are also uasm users hiding behind their own renamed versions of the
__cpuinit macros.

[1] https://lkml.org/lkml/2013/5/20/589

[ralf@linux-mips.org: Folded in Paul's followup fix.]

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5494/
Patchwork: https://patchwork.linux-mips.org/patch/5495/
Patchwork: https://patchwork.linux-mips.org/patch/5509/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-14 19:36:51 -04:00
Jayachandran C
8ecd08378c MIPS: Netlogic: Fix plat_irq_dispatch
Fix an issue in plat_irq_dispatch due to which it can call do_IRQ
with a PIC irq that is not mapped.

When a per-cpu interrupt and a PIC interrupt are both active, the
check 'eirr & PERCPU_IRQ_MASK' will be true, but the interrupt in 'i'
will be the number of the PIC interrupt. In this case, we will call
do_IRQ on the PIC interrupt without mapping it with nlm_irq_to_xirq().

Fix this by using __ffs64 instead of __ilog2_u64 and using the
interrupt number instead of mask to identify per-cpu interrupts.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5432/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:43 +02:00
Jayachandran C
6099115e7e MIPS: Netlogic: Remove workarounds for early SoCs
The XLPs in production do not need these workarounds. Remove the code and
the associated ifdef.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5430/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:43 +02:00
Jayachandran C
722138340b MIPS: Netlogic: Fixup memory regions for prefetch
Fix a cache error found in stress test, caused by the prefetch instruction
going beyond valid memory when acessing the last page of a region. Add
the pref_backup logic similar to XLR in XLP too.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5431/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:43 +02:00
Jayachandran C
4033d38ceb MIPS: Netlogic: wait for all hardware threads
Earlier we just waited for the first thread of the CPU to come online
before proceeding to wake up others. Update it to wait for all the CPUs
in the core. This will be useful when the boot-up is slow, like while
debugging or when running in a simulator.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5429/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:43 +02:00
Jayachandran C
fd5f527cc5 MIPS: Netlogic: use branch instead of jump
Fix an issue in the reset code. Since this code is copied to the
reset vector, using 'j' for looping is not correct. Use relative
branch 'b'.

Update the usage of 'j' in smpboot.S to be consistent although it
is not a bug there.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5427/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:42 +02:00
Jayachandran C
919f9abb37 MIPS: Netlogic: move cpu_ready array to boot area
Move the nlm_cpu_ready[] array used by the cpu wakeup code to the
boot area, along with rest of the boot parameter code.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5425/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:42 +02:00
Jayachandran C
53c832197f MIPS: Netlogic: Add nlm_get_boot_data() helper
This moves the calculation and casting needed to access the CPU initialization
data to a function nlm_get_boot_data()

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5426/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:42 +02:00
Jayachandran C
571886b2a5 MIPS: Netlogic: Initialization when !CONFIG_SMP
The core initialization and reset vector setup needs to be done
even when booting uniprocessor. Move this code from smp.c to setup.c

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5428/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:42 +02:00
Jayachandran C
9584c55a5c MIPS: Netlogic: Split reset code out of smpboot.S
The reset and core initialization code should be available for
uniprocessor as well. This changes is just to take out the code
into a different file, without any change to the logic.

The change for  uniprocessor initialization code is in a later patch.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5423/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:42 +02:00
Jayachandran C
aceee09d4f MIPS: Netlogic: Split XLP device tree code to dt.c
Create new flle arch/mips/netlogic/xlp/dt.c and move the device
tree related code there.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5422/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:42 +02:00
Jayachandran C
5649d37c2b MIPS: Netlogic: COP2 save/restore code
Add COP2 register state structure and functions for Netlogic XLP. The
RX and TX buffers and status registers are to be saved. Since the
registers are 64-bit, do the implementation in inline assembly which
works on both 32-bit and 64-bit kernels.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/5413/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:41 +02:00
Jayachandran C
64f6ebe639 MIPS: Netlogic: rename nlm_cop2_save/restore
Rename macro nlm_cop2_enable() to nlm_cop2_enable_irqsave() and the macro
nlm_cop2_restore to nlm_cop2_disable_irqrestore(). The new names will
reflect the functionality better, and will make nlm_cop2_restore()
available to be used later in COP2 save/restore patch.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/5412/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:41 +02:00
Jayachandran C
1c146cd46f MIPS: Netlogic: Fix nlm_read_c2_status() definition
The sel argument os nlm_read_c2_status() was not used and the macro
returned the sel 0 in all cases. Fix this by defining two macros:
nlm_read_c2_status0() and nlm_read_c2_status1() to return the two
status registers.

Add functions to write to the status registers as well.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/5414/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:41 +02:00
Ganesan Ramalingam
79f8511c83 MIPS: Netlogic: SWIOTLB dma ops for 32-bit DMA
Add SWIOTLB config option and related files to Netlogic platform.

Some XLP SoC components like the SD/MMC interface cannot do DMA beyond
32-bit physical address. The SD/MMC driver can use memory outside this
range for IO, to support this we have to add bounce buffers implemented
by SWIOTLB.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: Ganesan Ramalingam <ganesanr@broadcom.com>
Patchwork: https://patchwork.linux-mips.org/patch/5410/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13 17:46:40 +02:00
Ralf Baechle
bdc92d74e0 MIPS: Idle: Consolidate all declarations in <asm/idle.h>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:27 +02:00
Jayachandran C
c80dd3b679 MIPS: Netlogic: Merge platform usb.h to usb-init.c
The definitions are not used anywhere else, and merging it will
make adding the new USB definitions for XLPII series easier.
While there, cleanup some whitespace in usb-init.c. There is no
change to logic due to this commit.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5027/
Acked-by: John Crispin <blogic@openwrt.org>
2013-05-08 01:19:05 +02:00
Jayachandran C
035114fbdb MIPS: Netlogic: Support for multiple built-in device trees
This enables us to have a default device tree per SoC family to be built
into the kernel. The default device tree for XLP3xx has been added as part
of this change. Later this can be used to provide support default boards
for XLP2xx and XLP9xx SoCs.

Kconfig options are provided for each default device tree so that just the
needed ones can be selected to be built into the kernel.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5023/
Acked-by: John Crispin <blogic@openwrt.org>
2013-05-08 01:19:05 +02:00
Jayachandran C
3c0553e734 MIPS: Netlogic: Avoid using fixed PIC IRT index
The index for a device interrupt in the PIC interrupt routing table
changes for different chips in the XLP family.  Avoid using the fixed
entries and derive the index value from the SoC device header.

Add workarounds for some devices which do not report the IRT index
correctly.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5025/
Acked-by: John Crispin <blogic@openwrt.org>
2013-05-08 01:19:04 +02:00
Jayachandran C
62b734d289 MIPS: Netlogic: print cpumask with cpumask_scnprintf
Use standard function to print cpumask. Also fixup the name of the
variable used and make it static.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5024/
Acked-by: John Crispin <blogic@openwrt.org>
2013-05-08 01:19:04 +02:00
Ralf Baechle
8bfc245f9a Merge branch 'mips-next-3.9' of git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next 2013-02-21 12:51:33 +01:00
Jayachandran C
cba3b64303 MIPS: Netlogic: Fix for quad-XLP boot
On multi-chip boards, the first core on slave SoCs may take much
more time to wakeup. Add code to wait for the core to come up before
proceeding with the rest of the boot up.

Update xlp_wakeup_core to also skip the boot node and the boot CPU
initialization which is already complete.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4783/
Signed-off-by: John Crispin <blogic@openwrt.org>
2013-02-17 00:15:22 +01:00
Jayachandran C
37a7059bc4 MIPS: Netlogic: use preset loops per jiffy
Doing calibrate delay on a hardware thread will be inaccurate since
it depends on the load on other threads in the core. It will also
slow down the boot process when done for 128 hardware threads. Switch
to a pre-computed loops per jiffy based on the core frequency. The
value is computed based on the core frequency and roughly matches the
value calculated by calibrate_delay().

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4791/
Signed-off-by: John Crispin <blogic@openwrt.org>
2013-02-17 00:15:21 +01:00
Jayachandran C
4e45e542cd MIPS: Netlogic: Use PIC timer as a clocksource
The XLR/XLS/XLP PIC has a 8 countdown timers which run at the PIC
frequencey. One of these can be used as a clocksource to provide
timestamps that is common across cores. This can be used in place
of the count/compare clocksource which is per-CPU.

On XLR/XLS PIC registers are 32-bit, so we just use the lower 32-bits
of the PIC counter. On XLP, the whole 64-bit can be used.

Provide common macros and functions for PIC timer registers on XLR/XLS
and XLP, and use them to register a PIC clocksource.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4786/
Signed-off-by: John Crispin <blogic@openwrt.org>
2013-02-17 00:15:20 +01:00
Jayachandran C
a69ba6293d MIPS: Netlogic: Split XLP L1 i-cache among threads
Since we now use r4k cache code for Netlogic XLP, it is
better to split L1 icache among the active threads, so that
threads won't step on each other while flushing icache.

The L1 dcache is already split among the threads in the core.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4787/
Signed-off-by: John Crispin <blogic@openwrt.org>
2013-02-17 00:15:20 +01:00
Jayachandran C
220d9122e8 MIPS: Netlogic: Optimize EIMR/EIRR accesses in 32-bit
Provide functions ack_c0_eirr(), set_c0_eimr(), clear_c0_eimr()
and read_c0_eirr_and_eimr() that do the EIMR and EIRR operations
and update the interrupt handling code to use these functions.
Also, use the EIMR register functions to mask interrupts in the
irq code.

The 64-bit interrupt request and mask registers (EIRR and EIMR) are
accessed when the interrupts are off, and the common operations are
to set or clear a bit in these registers. Using the 64-bit c0 access
functions for these operations is not optimal in 32-bit, because it
will disable/restore interrupts and split/join the 64-bit value during
each register access.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4790/
Signed-off-by: John Crispin <blogic@openwrt.org>
2013-02-17 00:15:19 +01:00
Jayachandran C
f0cb40e5c3 MIPS: Netlogic: add XLS6xx to FMN config
Add support for XLS6xx CPUs to the Fast Message Network (FMN)
configuration.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4785/
Signed-off-by: John Crispin <blogic@openwrt.org>
2013-02-17 00:15:18 +01:00
Ralf Baechle
7034228792 MIPS: Whitespace cleanup.
Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-02-01 10:00:22 +01:00
Jayachandran C
26f5ae865d MIPS: Netlogic: Fix UP compilation on XLR
The commit 2a37b1a "MIPS: Netlogic: Move from u32 cpumask to cpumask_t"
breaks uniprocessor compilation on XLR with:

arch/mips/netlogic/xlr/setup.c: In function 'prom_init':
arch/mips/netlogic/xlr/setup.c:196:6: error: unused variable 'i'

Fix by defining 'i' only when CONFIG_SMP is defined.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/4760/
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-30 21:44:18 +01:00
Linus Torvalds
cebfa85eb8 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "The MIPS bits for 3.8.  This also includes a bunch fixes that were
  sitting in the linux-mips.org git tree for a long time.  This pull
  request contains updates to several OCTEON drivers and the board
  support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B,
  updates to the SSB bus support, MIPS kexec code and adds support for
  kdump.

  When pulling this, there are two expected merge conflicts in
  include/linux/bcma/bcma_driver_chipcommon.h which are trivial to
  resolve, just remove the conflict markers and keep both alternatives."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits)
  MIPS: PMC-Sierra Yosemite: Remove support.
  VIDEO: Newport Fix console crashes
  MIPS: wrppmc: Fix build of PCI code.
  MIPS: IP22/IP28: Fix build of EISA code.
  MIPS: RB532: Fix build of prom code.
  MIPS: PowerTV: Fix build.
  MIPS: IP27: Correct fucked grammar in ops-bridge.c
  MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled
  MIPS: Fix potencial corruption
  MIPS: Fix for warning from FPU emulation code
  MIPS: Handle COP3 Unusable exception as COP1X for FP emulation
  MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
  MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
  MIPS: Remove unused smvp.h
  MIPS/EDAC: Improve OCTEON EDAC support.
  MIPS: OCTEON: Add definitions for OCTEON memory contoller registers.
  MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h
  ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian.
  MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.
  MIPS: Remove usage of CEVT_R4K_LIB config option.
  ...
2012-12-14 14:27:45 -08:00
Linus Torvalds
414a6750e5 USB patches for 3.8-rc1
Here's the big set of USB patches for 3.8-rc1.
 
 Lots of USB host driver cleanups in here, and a bit of a reorg of the
 EHCI driver to make it easier for the different EHCI platform drivers to
 all work together nicer, which was a reduction in overall code.  We also
 deleted some unused firmware files, and got rid of the very old
 file_storage usb gadget driver that had been broken for a long time.
 This means we ended up removing way more code than added, always a nice
 thing to see:
 	 310 files changed, 3028 insertions(+), 10754 deletions(-)
 
 Other than that, the usual set of new device ids, driver fixes, gadget
 driver and controller updates and the like.
 
 All of these have been in the linux-next tree for a number of weeks.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB patches from Greg Kroah-Hartman:
 "Here's the big set of USB patches for 3.8-rc1.

  Lots of USB host driver cleanups in here, and a bit of a reorg of the
  EHCI driver to make it easier for the different EHCI platform drivers
  to all work together nicer, which was a reduction in overall code.  We
  also deleted some unused firmware files, and got rid of the very old
  file_storage usb gadget driver that had been broken for a long time.
  This means we ended up removing way more code than added, always a
  nice thing to see:
	 310 files changed, 3028 insertions(+), 10754 deletions(-)

  Other than that, the usual set of new device ids, driver fixes, gadget
  driver and controller updates and the like.

  All of these have been in the linux-next tree for a number of weeks.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (228 commits)
  USB: mark uas driver as BROKEN
  xhci: Add Lynx Point LP to list of Intel switchable hosts
  uwb: fix uwb_dev_unlock() missed at an error path in uwb_rc_cmd_async()
  USB: ftdi_sio: Add support for Newport AGILIS motor drivers
  MAINTAINERS: remove drivers/block/ub.c
  USB: chipidea: fix use after free bug
  ezusb: add dependency to USB
  usb: ftdi_sio: fixup BeagleBone A5+ quirk
  USB: cp210x: add Virtenio Preon32 device id
  usb: storage: remove redundant memset() in usb_probe_stor1()
  USB: option: blacklist network interface on Huawei E173
  USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue
  USB: add new zte 3g-dongle's pid to option.c
  USB: opticon: switch to generic read implementation
  USB: opticon: refactor reab-urb processing
  USB: opticon: use usb-serial bulk-in urb
  USB: opticon: increase bulk-in size
  USB: opticon: use port as urb context
  USB: opticon: pass port to get_serial_info
  USB: opticon: make private data port specific
  ...
2012-12-11 14:48:20 -08:00
Stephen Warren
90b335fbbc kbuild: centralize .dts->.dtb rule
All architectures that use cmd_dtc do so in almost the same way. Create
a central build rule to avoid duplication. The one difference is that
most current uses of dtc build $(obj)/%.dtb from $(src)/dts/%.dts rather
than building the .dtb in the same directory as the .dts file. This
difference will be eliminated arch-by-arch in future patches.

MIPS is the exception here; it already uses the exact same rule as the
new common rule, so the duplicate is removed in this patch to avoid any
conflict. arch/mips changes courtesy of Ralf Baechle.

Update Documentation/kbuild to remove the explicit call to cmd_dtc from
the example, now that the rule exists in a centralized location.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Olof Johansson <olof@lixom.net>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org
Cc: Mark Salter <msalter@redhat.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: Chris Zankel <chris@zankel.net>
Cc: linux-xtensa@linux-xtensa.org
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-11-30 10:52:19 -06:00