Commit Graph

36861 Commits

Author SHA1 Message Date
Andreas Fenkart
a74fecdf79 mmc: omap_hsmmc: remove unused fields in platform_data
platform data is built from omap2_hsmmc_info, remove all fields that
are never set in omap_hsmmc_info, hence never copied to platform data.
Note that the omap_hsmmc driver is not affected by this patch those
fields were completely unused.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-11-26 14:30:54 +01:00
Andreas Fenkart
5514343890 ARM: OMAP1/2+: MMC: separate platform data for mmc and mmc hs driver
- omap mmc driver supports multiplexing, omap_mmc_hs doesn't
this leads to one of the major confusions in the omap_hsmmc driver

- platform data should be read-only for the driver
most callbacks are not set by the omap3 platform init code while still
required. So they are set from the driver probe function, which is against
the paradigm that platform-data should not be modified by the driver
typical examples are card_detect, read_only callbacks

un-bundling by searching for driver name \"omap_hsmmc in the
arch/arm folder. omap_hsmmc_platform_data is not initialized directly,
but from omap2_hsmmc_info, which is defined in a separate header file
not touched by this patch

hwmod includes platform headers to declare features of the platform. All
the declared features are prefixed OMAP_HSMMC. There is no need to
include platform header from hwmod other except for feature defines

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-11-26 14:30:53 +01:00
Andreas Fenkart
826c71a065 ARM: OMAP2: MMC: include mmc-omap platform header directly
Only a few files really need that platform header. When later splitting
omap_mmc_platform_data into omap_mmc and omap_mmc_hs, those files
declaring an hs mmc platform data will have to change the platform
include, which is a good sanity check.
Also removing omap242x_init_mmc, which is not used anywhere, checked
with grep.

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-11-26 14:30:53 +01:00
Alexandre Belloni
19336880bf ARM: at91: remove mach/atmel-mci.h
Use the generic platform_data header file instead of mach/atmel-mci.h

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-11-10 12:40:37 +01:00
Andreas Färber
92c9e0c780 ARM: dts: zynq: Enable PL clocks for Parallella
The Parallella board comes with a U-Boot bootloader that loads one of
two predefined FPGA bitstreams before booting the kernel. Both define an
AXI interface to the on-board Epiphany processor.

Enable clocks FCLK0..FCLK3 for the Programmable Logic by default.

Otherwise accessing, e.g., the ESYSRESET register freezes the board,
as seen with the Epiphany SDK tools e-reset and e-hw-rev, using /dev/mem.

Cc: <stable@vger.kernel.org> # 3.17.x
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-11-08 16:57:44 -08:00
Arnd Bergmann
5305e4d674 dma: edma: move device registration to platform code
The horrible split between the low-level part of the edma support
and the dmaengine front-end driver causes problems on multiplatform
kernels. This is an attempt to improve the situation slightly
by only registering the dmaengine devices that are actually
present.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: add missing include of linux/dma-mapping.h]
Signed-off-by: Olof Johansson <olof@lixom.net>

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-11-05 18:26:10 -08:00
Olof Johansson
ab699bc792 ARM: dts: vf610: add SD node to cosmic dts
Driver has been there since a while back, but the dts never seems to
have been updated with the node (nor pinctrl). Do so now.

Cc: Matt Porter <mporter@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-11-05 10:58:47 -08:00
Olof Johansson
83b3d538db The i.MX fixes for 3.18, 2nd round:
- Fix a regression on Vybrid platform which is caused by commit
    dc4805c2e7 (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3
    driver), and results in a missing configuration on PLL clocks.
  - Fix a regression with i.MX defconfig files where CONFIG_SPI option
    gets lost accidentally.
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Merge tag 'imx-fixes-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.18, 2nd round" from Shawn Guo:

"This is the second round of i.MX fixes for 3.18.  The clk-vf610 fix is
relatively big, because it needs some adaption to the change made by
offending commit dc4805c2e7 (ARM: imx: remove ENABLE and BYPASS bits
from clk-pllv3 driver).  And it should have been sent to you for earlier
-rc inclusion, but unfortunately it got delayed for some time because
Stefan wasn't aware of my email address change."

The i.MX fixes for 3.18, 2nd round:
 - Fix a regression on Vybrid platform which is caused by commit
   dc4805c2e7 (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3
   driver), and results in a missing configuration on PLL clocks.
 - Fix a regression with i.MX defconfig files where CONFIG_SPI option
   gets lost accidentally.

* tag 'imx-fixes-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (460 commits)
  ARM: imx: Fix the removal of CONFIG_SPI option
  ARM: imx: clk-vf610: define PLL's clock tree
  + Linux 3.18-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-11-04 20:37:25 -08:00
Fabio Estevam
89fbec5b97 ARM: imx: Fix the removal of CONFIG_SPI option
Since 64546e9fe3 ("ARM: imx_v6_v7_defconfig updates") and commit
0650f855d2 ("ARM: imx_v4_v5_defconfig: Select CONFIG_IMX_WEIM") CONFIG_SPI
selection was dropped by savedefconfig for imx_v4_v5_defconfig and
imx_v6_v7_defconfig.

In order to keep the same behaviour as previous kernel versions and avoid
regressions, let's add CONFIG_SPI option back.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-11-04 19:00:01 +08:00
Stefan Agner
c72c553249 ARM: imx: clk-vf610: define PLL's clock tree
So far, the required PLL's (PLL1/PLL2/PLL5) have been initialized
by boot loader and the kernel code defined fixed rates according
to those default configurations. Beginning with the USB PLL7 the
code started to initialize the PLL's itself (using imx_clk_pllv3).

However, since commit dc4805c2e7
(ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver)
imx_clk_pllv3 no longer takes care of the ENABLE and BYPASS bits,
hence the USB PLL were not configured correctly anymore.

This patch not only fixes those USB PLL's, but also makes use of
the imx_clk_pllv3 for all PLL's and alignes the code with the PLL
support of the i.MX6 series.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-11-04 13:40:14 +08:00
Olof Johansson
4257412db5 Few fixes for omaps to enable NAND BCH so devices won't
produce errors when booted with omap2plus_defconfig, and
 reduce bloat by making IPV6 a loadable module.
 
 Also let's add a warning about legacy boot being deprecated
 for omap3.
 
 We now have things working with device tree, and only omap3 is
 still booting in legacy mode. So hopefully this warning will
 help move the remaining legacy mode users to boot with device
 tree.
 
 As the total reduction of code and static data is somewhere
 around 20000 lines of code once we remove omap3 legacy mode
 booting, we really do want to make omap3 to boot also in
 device tree mode only over the next few merge cycles.
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Merge tag 'fixes-against-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v3.18-rc2" from Tony Lindgren:

Few fixes for omaps to enable NAND BCH so devices won't
produce errors when booted with omap2plus_defconfig, and
reduce bloat by making IPV6 a loadable module.

Also let's add a warning about legacy boot being deprecated
for omap3.

We now have things working with device tree, and only omap3 is
still booting in legacy mode. So hopefully this warning will
help move the remaining legacy mode users to boot with device
tree.

As the total reduction of code and static data is somewhere
around 20000 lines of code once we remove omap3 legacy mode
booting, we really do want to make omap3 to boot also in
device tree mode only over the next few merge cycles.

* tag 'fixes-against-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (407 commits)
  ARM: OMAP2+: Warn about deprecated legacy booting mode
  ARM: omap2plus_defconfig: Fix errors with NAND BCH
  ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in
  + Linux 3.18-rc2

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-11-02 13:37:07 -08:00
Linus Torvalds
3c43de0ffd Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 - add the new bpf syscall to ARM.
 - drop a redundant return statement in __iommu_alloc_remap()
 - fix a performance issue noticed by Thomas Petazzoni with
   kmap_atomic().
 - fix an issue with the L2 cache OF parsing code which caused it to
   incorrectly print warnings on each boot, and make the warning text
   more consistent with the rest of the code

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8180/1: mm: implement no-highmem fast path in kmap_atomic_pfn()
  ARM: 8183/1: l2c: Improve l2c310_of_parse() error message
  ARM: 8181/1: Drop extra return statement
  ARM: 8182/1: l2c: Make l2x0_cache_size_of_parse() return 'int'
  ARM: enable bpf syscall
2014-11-02 12:56:20 -08:00
Linus Torvalds
89453379aa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A bit has accumulated, but it's been a week or so since my last batch
  of post-merge-window fixes, so...

   1) Missing module license in netfilter reject module, from Pablo.
      Lots of people ran into this.

   2) Off by one in mac80211 baserate calculation, from Karl Beldan.

   3) Fix incorrect return value from ax88179_178a driver's set_mac_addr
      op, which broke use of it with bonding.  From Ian Morgan.

   4) Checking of skb_gso_segment()'s return value was not all
      encompassing, it can return an SKB pointer, a pointer error, or
      NULL.  Fix from Florian Westphal.

      This is crummy, and longer term will be fixed to just return error
      pointers or a real SKB.

   6) Encapsulation offloads not being handled by
      skb_gso_transport_seglen().  From Florian Westphal.

   7) Fix deadlock in TIPC stack, from Ying Xue.

   8) Fix performance regression from using rhashtable for netlink
      sockets.  The problem was the synchronize_net() invoked for every
      socket destroy.  From Thomas Graf.

   9) Fix bug in eBPF verifier, and remove the strong dependency of BPF
      on NET.  From Alexei Starovoitov.

  10) In qdisc_create(), use the correct interface to allocate
      ->cpu_bstats, otherwise the u64_stats_sync member isn't
      initialized properly.  From Sabrina Dubroca.

  11) Off by one in ip_set_nfnl_get_byindex(), from Dan Carpenter.

  12) nf_tables_newchain() was erroneously expecting error pointers from
      netdev_alloc_pcpu_stats().  It only returna a valid pointer or
      NULL.  From Sabrina Dubroca.

  13) Fix use-after-free in _decode_session6(), from Li RongQing.

  14) When we set the TX flow hash on a socket, we mistakenly do so
      before we've nailed down the final source port.  Move the setting
      deeper to fix this.  From Sathya Perla.

  15) NAPI budget accounting in amd-xgbe driver was counting descriptors
      instead of full packets, fix from Thomas Lendacky.

  16) Fix total_data_buflen calculation in hyperv driver, from Haiyang
      Zhang.

  17) Fix bcma driver build with OF_ADDRESS disabled, from Hauke
      Mehrtens.

  18) Fix mis-use of per-cpu memory in TCP md5 code.  The problem is
      that something that ends up being vmalloc memory can't be passed
      to the crypto hash routines via scatter-gather lists.  From Eric
      Dumazet.

  19) Fix regression in promiscuous mode enabling in cdc-ether, from
      Olivier Blin.

  20) Bucket eviction and frag entry killing can race with eachother,
      causing an unlink of the object from the wrong list.  Fix from
      Nikolay Aleksandrov.

  21) Missing initialization of spinlock in cxgb4 driver, from Anish
      Bhatt.

  22) Do not cache ipv4 routing failures, otherwise if the sysctl for
      forwarding is subsequently enabled this won't be seen.  From
      Nicolas Cavallari"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (131 commits)
  drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode
  drivers: net: cpsw: Fix broken loop condition in switch mode
  net: ethtool: Return -EOPNOTSUPP if user space tries to read EEPROM with lengh 0
  stmmac: pci: set default of the filter bins
  net: smc91x: Fix gpios for device tree based booting
  mpls: Allow mpls_gso to be built as module
  mpls: Fix mpls_gso handler.
  r8152: stop submitting intr for -EPROTO
  netfilter: nft_reject_bridge: restrict reject to prerouting and input
  netfilter: nft_reject_bridge: don't use IP stack to reject traffic
  netfilter: nf_reject_ipv6: split nf_send_reset6() in smaller functions
  netfilter: nf_reject_ipv4: split nf_send_reset() in smaller functions
  netfilter: nf_tables_bridge: update hook_mask to allow {pre,post}routing
  drivers/net: macvtap and tun depend on INET
  drivers/net, ipv6: Select IPv6 fragment idents for virtio UFO packets
  drivers/net: Disable UFO through virtio
  net: skb_fclone_busy() needs to detect orphaned skb
  gre: Use inner mac length when computing tunnel length
  mlx4: Avoid leaking steering rules on flow creation error flow
  net/mlx4_en: Don't attempt to TX offload the outer UDP checksum for VXLAN
  ...
2014-10-31 15:04:58 -07:00
Tony Lindgren
7d2911c438 net: smc91x: Fix gpios for device tree based booting
With legacy booting, the platform init code was taking care of
the configuring of GPIOs. With device tree based booting, things
may or may not work depending what bootloader has configured or
if the legacy platform code gets called.

Let's add support for the pwrdn and reset GPIOs to the smc91x
driver to fix the issues of smc91x not working properly when
booted in device tree mode.

And let's change n900 to use these settings as some versions
of the bootloader do not configure things properly causing
errors.

Reported-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-31 15:54:18 -04:00
Tony Lindgren
4b91f7f3c8 ARM: OMAP2+: Warn about deprecated legacy booting mode
We're moving omaps to use device tree based booting and already have
omap2, omap4, omap5, am335x and am437x booting in device tree only
mode.

Only omap3 still has legacy booting still around and we really want
to make that device tree only. So let's add a warning about deprecated
legacy booting so we get people to upgrade their boards to use device
tree based booting and find out about any remaining issues.

Note that for most boards we already have the .dts file and those can
be booted with without changing the bootloader using the appended
DTB mode.

Acked-By: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-29 12:19:20 -07:00
Tony Lindgren
739fd50784 ARM: omap2plus_defconfig: Fix errors with NAND BCH
Looks like we need to have BCH enabled to get NAND
working and to avoid getting:

nand: error: CONFIG_MTD_NAND_ECC_BCH not enabled

Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-29 12:19:20 -07:00
Thomas Petazzoni
9ff0bb5ba6 ARM: 8180/1: mm: implement no-highmem fast path in kmap_atomic_pfn()
Since CONFIG_HIGHMEM got enabled on ARMv5 Kirkwood, we have noticed a
very significant drop in networking performance. The test were
conducted on an OpenBlocks A7 board. Without this patch, the outgoing
performance measured with iperf are:

 - highmem OFF, TSO OFF   544 Mbit/s
 - highmem OFF, TSO ON	  942 Mbit/s
 - highmem ON,  TSO OFF   306 Mbit/s
 - highmem ON,  TSO ON    246 Mbit/s

On this Kirkwood platform, the L2 cache is a Feroceon cache, and with
this cache, all the range operations have to be done on virtual
addresses and not physical addresses. Therefore, whenever
CONFIG_HIGHMEM is enabled, the cache maintenance operations call
kmap_atomic_pfn() and kunmap_atomic().

However, kmap_atomic_pfn() does not implement the same fast path for
non-highmem pages as the one implemented in kmap_atomic(), and this is
one of the reason for the performance drop. While this patch does not
fully restore the performances, it clearly improves them a lot:

      	      	        without patch  with patch

 - highmem ON, TSO OFF   306 Mbit/s     387 Mbit/s
 - highmem ON, TSO ON    246 Mbit/s     434 Mbit/s

We're still far from the !CONFIG_HIGHMEM performances, but it does
improve a bit the situation.

Thanks a lot to Ezequiel Garcia and Gregory Clement for all the
testing work around this topic.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-10-29 17:22:07 +00:00
Fabio Estevam
6d0ec1dd90 ARM: 8183/1: l2c: Improve l2c310_of_parse() error message
Russell King suggested [1]:

"I'd ask for one change.  Please make all these messages start with
"L2C-310 OF" not "PL310 OF:".  The device is described in ARM
documentation as a L2C-310 not PL310.  (Also note the : is dropped
too - most of the other messages don't have the : either.)

The:

"PL310 OF: cache setting yield illegal associativity
PL310 OF: -1073346556 calculated, only 8 and 16 legal"

message could also be changed to something like:

"L2C-310 OF cache associativity %d invalid, only 8 or 16 permittedn"

[1] http://www.spinics.net/lists/arm-kernel/msg372776.html

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-10-29 17:20:55 +00:00
Laura Abbott
005757298f ARM: 8181/1: Drop extra return statement
Commit 513510ddba
(common: dma-mapping: introduce common remapping functions)
managed to end up with an extra return statement from the
original patch. Drop it.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-10-29 17:20:51 +00:00
Fabio Estevam
d0b92845e5 ARM: 8182/1: l2c: Make l2x0_cache_size_of_parse() return 'int'
Since commit f3354ab674 ("ARM: 8169/1: l2c: parse cache properties from
ePAPR definitions") the following error is seen on imx6q:

[    0.000000] PL310 OF: cache setting yield illegal associativity
[    0.000000] PL310 OF: -2147097556 calculated, only 8 and 16 legal

As imx6q does not pass the "cache-size" and "cache-sets" properties in DT, the function l2x0_cache_size_of_parse() returns early and keep the 'associativity' pointer uninitialized.

To fix this problem, return error codes inside l2x0_cache_size_of_parse() and only use the 'associativity' pointer result if l2x0_cache_size_of_parse() succeeds.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-10-29 11:13:02 +00:00
Russell King
2d605a3029 ARM: enable bpf syscall
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-10-29 00:18:20 +00:00
Srinivas Kandagatla
d609309969 ARM: multi_v7_defconfig: fix support for APQ8084
This patch enables configs required to boot IFC6540 board with atleast a
serial console.

Without this patch there is no serial console.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-10-28 22:10:58 +01:00
Stefan Hengelein
f267ea0fe0 ARM: ixp4xx: remove compilation warnings in io.h
When arch/arm/mach-ixp4xx/common-pci.c is compiled, two warnings
occur:

arch/arm/mach-ixp4xx/include/mach/io.h:144: warning: passing argument 1 of '__raw_readb' makes pointer from integer without a cast
arch/arm/mach-ixp4xx/include/mach/io.h:79: warning: passing argument 2 of '__raw_writeb' makes pointer from integer without a cast

Both functions expect an 'volatile void __iomem *' but get an u32.
The 'u32 addr' variable is initialized with the address of an
'volatile void __iomem *' pointer. Passing the pointer
directly, avoids the warning and semantics are preserved.

This warning was found with vampyr.

Signed-off-by: Stefan Hengelein <stefan.hengelein@fau.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-10-28 22:04:01 +01:00
Linus Torvalds
6e2028aaa1 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "A couple of ARM fixes.

  We fix some printk formats for ptrdiff_t quantities which cause GCC
  4.9 to complain, and we also blacklist known buggy GCC 4.8.x compilers
  as their miscompilation is serious enough to cause filesystem
  corruption, even through many distros have fixed their versions"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: fix some printk formats
  ARM: Blacklist GCC 4.8.0 to GCC 4.8.2 - PR58854
2014-10-28 13:17:11 -07:00
Tony Lindgren
49dc71268b ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in
Commit  673ce00c5d (ARM: omap2plus_defconfig: Add support for
distros with systemd) caused considerable bloat as noted by
Paul Walmsley <paul@pwsan.com>.

Let's fix this issue by making what we can into loadable modules
for the systemd options. That's only IPV6 and AUTOFS4_FS it
seems, and IPv6 defaults to a loadable module.

Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27 13:05:50 -07:00
Olof Johansson
436d2bcb32 SOCFPGA defconfig update
Remove extra un-used options in the socfpga_defconfig by doing
 "make savedefconfig". Along with this commit, add the configs to enable
 support for most filesystems, add regulator and SRAM support, and time
 stamps on printk().
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Merge tag 'socfpga_defconfig_for_v3.19' of git://git.rocketboards.org/linux-socfpga-next into fixes

Merge "SOCFPGA defconfig update" from Dinh Nguyen:

Remove extra un-used options in the socfpga_defconfig by doing
"make savedefconfig". Along with this commit, add the configs to enable
support for most filesystems, add regulator and SRAM support, and time
stamps on printk().

* tag 'socfpga_defconfig_for_v3.19' of git://git.rocketboards.org/linux-socfpga-next:
  ARM: socfpga_defconfig: Update defconfig for SoCFPGA

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-27 12:31:06 -07:00
Olof Johansson
1f6fc15a13 arm: pxa: fixes for v3.18-rc2
Hello Arnd, Kevin, Olof,
 
 One small fix for a bug triggered by the activation of low level debug
 code in all pxa variants in v3.17. The fix is a trivial Kconfig value
 fix for an addressing conflict.
 
 Thanks.
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Merge tag 'fixes-for-v3.18-rc2' of https://github.com/rjarzmik/linux into fixes

Merge "arm: pxa: fixes for v3.18-rc2" from Robert Jarzmik:

One small fix for a bug triggered by the activation of low level debug
code in all pxa variants in v3.17. The fix is a trivial Kconfig value
fix for an addressing conflict.
2014-10-27 12:29:06 -07:00
Linus Torvalds
88e237610b ARM: SoC fixes for -rc2
Another week, another small batch of fixes.
 
 Most of these make zynq, socfpga and sunxi platforms work a bit
 better:
 
 * Due to new requirements for regulators, DWMMC on socfpga broke past 3.17.
 * SMP spinup fix for socfpga
 * A few DT fixes for zynq
 * Another option (FIXED_REGULATOR) for sunxi is needed that used to be selected
   by other options but no longer is.
 * A couple of small DT fixes for at91
 * ...and a couple for i.MX.
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Merge tag 'armsoc-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Another week, another small batch of fixes.

  Most of these make zynq, socfpga and sunxi platforms work a bit
  better:

   - due to new requirements for regulators, DWMMC on socfpga broke past
     v3.17
   - SMP spinup fix for socfpga
   - a few DT fixes for zynq
   - another option (FIXED_REGULATOR) for sunxi is needed that used to
     be selected by other options but no longer is.
   - a couple of small DT fixes for at91
   - ...and a couple for i.MX"

* tag 'armsoc-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: imx28-evk: Let i2c0 run at 100kHz
  ARM: i.MX6: Fix "emi" clock name typo
  ARM: multi_v7_defconfig: enable CONFIG_MMC_DW_ROCKCHIP
  ARM: sunxi_defconfig: enable CONFIG_REGULATOR_FIXED_VOLTAGE
  ARM: dts: socfpga: Add a 3.3V fixed regulator node
  ARM: dts: socfpga: Fix SD card detect
  ARM: dts: socfpga: rename gpio nodes
  ARM: at91/dt: sam9263: fix PLLB frequencies
  power: reset: at91-reset: fix power down register
  MAINTAINERS: add atmel ssc driver maintainer entry
  arm: socfpga: fix fetching cpu1start_addr for SMP
  ARM: zynq: DT: trivial: Fix mc node
  ARM: zynq: DT: Add cadence watchdog node
  ARM: zynq: DT: Add missing reference for memory-controller
  ARM: zynq: DT: Add missing reference for ADC
  ARM: zynq: DT: Add missing address for L2 pl310
  ARM: zynq: DT: Remove 222 MHz OPP
  ARM: zynq: DT: Fix GEM register area size
2014-10-26 11:35:51 -07:00
Olof Johansson
efc176a8ee The i.MX fixes for 3.18:
- Revert one patch which increases I2C bus frequency on imx28-evk
  - Fix a typo on imx6q EIM clock name
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Merge tag 'imx-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.18" from Shawn Guo:

The i.MX fixes for 3.18:
 - Revert one patch which increases I2C bus frequency on imx28-evk
 - Fix a typo on imx6q EIM clock name

* tag 'imx-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx28-evk: Let i2c0 run at 100kHz
  ARM: i.MX6: Fix "emi" clock name typo

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-25 20:44:05 -07:00
Fabio Estevam
d1e61eb443 ARM: dts: imx28-evk: Let i2c0 run at 100kHz
Commit 78b81f4666 ("ARM: dts: imx28-evk: Run I2C0 at 400kHz") caused issues
when doing the following sequence in loop:

- Boot the kernel
- Perform audio playback
- Reboot the system via 'reboot' command

In many times the audio card cannot be probed, which causes playback to fail.

After restoring to the original i2c0 frequency of 100kHz there is no such
problem anymore.

This reverts commit 78b81f4666.

Cc: <stable@vger.kernel.org> # 3.16+
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-10-25 20:17:36 +08:00
Steve Longerbeam
a1fc198046 ARM: i.MX6: Fix "emi" clock name typo
Fix a typo error, the "emi" names refer to the eim clocks.

The change fixes typo in EIM and EIM_SLOW pre-output dividers and
selectors clock names. Notably EIM_SLOW clock itself is named correctly.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
[vladimir_zapolskiy@mentor.com: ported to v3.17]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-10-25 20:01:09 +08:00
Dinh Nguyen
2ca6121c67 ARM: socfpga_defconfig: Update defconfig for SoCFPGA
Clean up the socfpga_defconfig file by doing:
	make socfpga_defconfig
	make
	make savedefconfig

Then add the following to socfpga_defconfig:

CONFIG_SIGNALFD=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_SRAM=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_CONFIGFS_FS=y
CONFIG_PMBUS=y
CONFIG_SENSORS_PMBUS=y
CONFIG_SENSORS_LTC2978=y
CONFIG_SENSORS_LTC2978_REGULATOR=y
CONFIG_PRINTK_TIME=y
CONFIG_EXT4_FS=y

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2014-10-24 16:51:13 -05:00
Olof Johansson
4fbc400cfc SOCFPGA fixes for 3.18
These patches fixes an SMP and SDMMC driver hang during boot up on the
 SOCFPGA platform.
 
 Patch "arm: socfpga: fix fetching cpu1start_addr for SMP" fixes the SMP
 trampoline code in order for CPU1 to correctly fetch it's cpu1start_addr.
 
 Patch "ARM: dts: socfpga: rename gpio nodes" renames that GPIO node in order
 to allow a standard way of specifying status="okay" in the board DTS file.
 
 Patch "ARM: dts: socfpga: Fix SD card detect" fixes a SDMMC driver hang
 during boot. The reason for the hang was the deferred probe of the SDMMC
 driver was waiting for the GPIO resource that would never come.
 
 Patch "ARM: dts: socfpga: Add a 3.3V fixed regulator node" adds a fixed
 regulator node for the SDMMC driver to use.
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Merge tag 'socfpga_fixes_for_3.18' of git://git.rocketboards.org/linux-socfpga-next into fixes

Merge "SOCFPGA fixes for 3.18" from Dinh Nguyen:

These patches fixes an SMP and SDMMC driver hang during boot up on the
SOCFPGA platform.

Patch "arm: socfpga: fix fetching cpu1start_addr for SMP" fixes the SMP
trampoline code in order for CPU1 to correctly fetch it's cpu1start_addr.

Patch "ARM: dts: socfpga: rename gpio nodes" renames that GPIO node in order
to allow a standard way of specifying status="okay" in the board DTS file.

Patch "ARM: dts: socfpga: Fix SD card detect" fixes a SDMMC driver hang
during boot. The reason for the hang was the deferred probe of the SDMMC
driver was waiting for the GPIO resource that would never come.

Patch "ARM: dts: socfpga: Add a 3.3V fixed regulator node" adds a fixed
regulator node for the SDMMC driver to use.

* tag 'socfpga_fixes_for_3.18' of git://git.rocketboards.org/linux-socfpga-next:
  ARM: dts: socfpga: Add a 3.3V fixed regulator node
  ARM: dts: socfpga: Fix SD card detect
  ARM: dts: socfpga: rename gpio nodes
  arm: socfpga: fix fetching cpu1start_addr for SMP

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-23 21:05:45 -07:00
Olof Johansson
184f84d9b9 First AT91 fixes for 3.18:
- one more MAINTAINERS entry for the SSC driver
 - a fix for the newly introduced power/reset driver
 - a fix on at91sam9263 USB due to PLLB misconfiguration
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Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes

Merge "at91: fixes for v3.18 #1" from Nicholas Ferre:

First AT91 fixes for 3.18:
- one more MAINTAINERS entry for the SSC driver
- a fix for the newly introduced power/reset driver
- a fix on at91sam9263 USB due to PLLB misconfiguration

* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: at91/dt: sam9263: fix PLLB frequencies
  power: reset: at91-reset: fix power down register
  MAINTAINERS: add atmel ssc driver maintainer entry

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-23 21:02:49 -07:00
Olof Johansson
bcd09f17cb arm: Xilinx Zynq DT fixes for v3.18
- Fix gem register size
 - Fix OPP
 - Add missing references
 - Trivial cleanup
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Merge tag 'zynq-dt-fixes-for-3.18' of https://github.com/Xilinx/linux-xlnx into fixes

Merge "Xilinx Zynq dt fixes for v3.18" from Michal Simek:

arm: Xilinx Zynq DT fixes for v3.18
- Fix gem register size
- Fix OPP
- Add missing references
- Trivial cleanup

* tag 'zynq-dt-fixes-for-3.18' of https://github.com/Xilinx/linux-xlnx:
  ARM: zynq: DT: trivial: Fix mc node
  ARM: zynq: DT: Add cadence watchdog node
  ARM: zynq: DT: Add missing reference for memory-controller
  ARM: zynq: DT: Add missing reference for ADC
  ARM: zynq: DT: Add missing address for L2 pl310
  ARM: zynq: DT: Remove 222 MHz OPP
  ARM: zynq: DT: Fix GEM register area size

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-23 21:01:02 -07:00
Olof Johansson
90f0845ce6 ARM: multi_v7_defconfig: enable CONFIG_MMC_DW_ROCKCHIP
Allows booting from SD/MMC on RK3288 and other platforms. Added here so I
can enable the board in the boot farm.

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-23 21:00:52 -07:00
Olof Johansson
3e10dccc82 ARM: sunxi_defconfig: enable CONFIG_REGULATOR_FIXED_VOLTAGE
I missed in 9a2ad529ed that REGULATOR_FIXED_VOLTAGE had also gotten
deselected, so it needs to be added back as an explicit option.

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-10-23 21:00:52 -07:00
Dinh Nguyen
efb4a44e24 ARM: dts: socfpga: Add a 3.3V fixed regulator node
Without the 3.3V regulator node, the SDMMC driver will give these warnings:

dw_mmc ff704000.dwmmc0: No vmmc regulator found
dw_mmc ff704000.dwmmc0: No vqmmc regulator found

This patch adds the regulator node, and points the SD/MMC to the regulator.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
---
v3: Rename nodes to have schematic-name_regulator and remove "boot-on" and
    "always-on"
v2: Move the regulator nodes to their respective board dts file and
    correctly rename them to match the schematic
2014-10-22 21:00:19 -05:00
Dinh Nguyen
23920c0552 ARM: dts: socfpga: Fix SD card detect
Without this patch, the booting the SOCFPGA platform would hang at the
SDMMC driver loading. The issue, debugged by Doug Anderson, turned out
to be that the GPIO bank used by the SD card-detect was not set to
status="okay".

Also update the cd-gpios to point to portb of the &gpio1 GPIO IP.

Suggested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
v4: Use &gpio1 to set status="okay" and update cd-gpio=&portb
v3: Correctly degugged the issue to be a gpio node not having status="okay"
2014-10-22 20:59:45 -05:00
Dinh Nguyen
d11ac1d2d5 ARM: dts: socfpga: rename gpio nodes
Since the Synopsys GPIO IP can support multiple ports of varying widths, it
would make more sense to have the GPIO node DTS entry as this:

gpio0: gpio@ff708000{
	porta{
	};
};

Also, this is documented in the snps-dwapb-gpio.txt.

Suggested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2014-10-22 20:59:07 -05:00
Boris Brezillon
106c67af2f ARM: at91/dt: sam9263: fix PLLB frequencies
PLLB input and output ranges were wrongly copied from at91sam9261 as the
datasheet didn't mention explicitly PLLB. Correct their values.

This fixes USB.

Reported-by: Andreas Henriksson <andreas.henriksson@endian.se>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Andreas Henriksson <andreas.henriksson@endian.se>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-10-22 10:08:22 +02:00
Dinh Nguyen
3a4356c0c0 arm: socfpga: fix fetching cpu1start_addr for SMP
When CPU1 is brought out of reset, it's MMU is not turned on yet, so it will
only be able to use physical addresses. For systems with that have the
MMU page configured for 0xC0000000, 0x80000000, or 0x40000000
"BIC 0x40000000" will work just fine, as it was just converting the
virtual address of &cpu1start_addr into a physical address, ie. 0xC0000000
became 0x80000000. So for systems where the SDRAM controller was able to do a
wrap-around access, this was working fine, as it was just dropping the MSB,
but for systems where out of bounds memory access is not allowed, this would
not allow CPU1 to correctly fetch &cpu1start_addr.

This patch fixes the secondary_trampoline code to correctly fetch the
physical address of cpu1start_addr directly. The patch will subtract the
correct PAGE_OFFSET from &cpu1start_addr. And since on this platform, the
physical memory will always start at 0x0, subtracting PAGE_OFFSET from
&cpu1start_addr will allow CPU1 to correctly fetch the value of cpu1start_addr.

While at it, change the name of cpu1start_addr to socfpga_cpu1start_addr
to avoid any future naming collisions for multiplatform image.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
v4: Updated commit log to correctly lay out the usage of PAGE_OFFSET and
    add comments to the same effect.
v3: Used PAGE_OFFSET to get the physical address
v2: Correctly get the physical address instead of just a BIC hack.
2014-10-21 14:04:14 -05:00
Linus Torvalds
43d451f163 Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox framework from Jassi Brar:
 "A framework for Mailbox controllers and clients have been cooking for
  more than a year now.

  Everybody in the CC list had been copied on patchset revisions and
  most of them have made sounds of approval, though just one concrete
  Reviewed-by.  The patchset has also been in linux-next for a couple of
  weeks now and no conflict has been reported.  The framework has the
  backing of at least 5 platforms, though I can't say if/when they
  upstream their drivers (some businesses have 'changed')"

(Further acked-by by Arnd Bergmann and Suman Anna in the pull request
thread)

* 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  dt: mailbox: add generic bindings
  doc: add documentation for mailbox framework
  mailbox: Introduce framework for mailbox
  mailbox: rename pl320-ipc specific mailbox.h
2014-10-21 11:21:19 -07:00
Russell King
178c3dfe85 ARM: fix some printk formats
GCC 4.9 complains if we take the difference of two pointers, and it's
printed with "%d".  Fix this by using the proper flag - "t" for
ptrdiff_t.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-10-21 16:47:48 +01:00
Robert Jarzmik
cde7fc8799 ARM: pxa: fix hang on startup with DEBUG_LL
The commit 2111667b46 ("ARM: pxa: call debug_ll_io_init for
earlyprintk") triggers in the current kernel the attached backtrace on
PXA/tosa early in the boot time when DEBUG_LL is enabled.

It is due to overlap between uart virtual memory defined in
DEBUG_UART_VIRT and mapped by debug_ll_io_init() and peripheral bus
mapped by pxa_map_io at the same address, 0xf2100000.

As hinted by Arnd, map early virtual memory for low level debug on
address 0xf6200000, even if that means 2 virtual mappings will give
access to the pxa internal UARTs (FFUART, BTUART, STUART, ...).

------------[ cut here ]------------
kernel BUG at /home/lumag/linux/mm/vmalloc.c:1143!
Internal error: Oops - BUG: 0 [#1] PREEMPT ARM
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 3.17.0-00032-g8e0d202-dirty #23
task: c062a5a8 ti: c0620000 task.ti: c0620000
PC is at vm_area_add_early+0x54/0x84
LR is at add_static_vm_early+0xc/0x60
pc : [<c03e1100>]    lr : [<c03d9ef4>]    psr: 800001d3
sp : c0621f04  ip : c03efa74  fp : c03edf84
r10: c0637e98  r9 : 40000001  r8 : c03da57c
r7 : c3ffcfb0  r6 : 00000000  r5 : c3ffcfb0  r4 : 02000000
r3 : c3ffcfd8  r2 : f2100000  r1 : f4000000  r0 : c3ffcfb0
Flags: Nzcv  IRQs off  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
Control: 00007977  Table: a0004000  DAC: 00000017
Process swapper (pid: 0, stack limit = 0xc06201c8)
Stack: (0xc0621f04 to 0xc0622000)
1f00:          c3ffcfd8 40000001 c3ffcfd8 c03ee08c c03da570 c03db90c c0637d24
1f20: 00000000 c03ec7cc c066e654 a0700000 000a0700 c03db914 c03db90c c03daf84
1f40: 00000000 000a0000 c0000000 c03ec7cc 000a0700 c0700000 ffff1000 000a3fff
1f60: 00001000 00000007 00000000 c03ec7cc c0008000 c03ed748 c0621fd4 c03d5d18
1f80: 69052d00 a03ec48c 00000000 c03d8ad0 0000006c 00007977 c036c6e8 00000001
1fa0: c0621fd4 c03ed744 c0628000 a0004000 69052d00 a03ec48c 00000000 c03d68d4
1fc0: 00000000 00000000 00000000 00000000 00000000 c03ed748 c0649894 c062801c
1fe0: c03ed744 c062b2f0 a0004000 69052d00 a03ec48c a0008040 00000000 00000000
[<c03e1100>] (vm_area_add_early) from [<c03d9ef4>] (add_static_vm_early+0xc/0x60)
[<c03d9ef4>] (add_static_vm_early) from [<c03da570>] (iotable_init.part.6+0xa8/0xb4)
[<c03da570>] (iotable_init.part.6) from [<c03db914>] (pxa25x_map_io+0x8/0x24)
[<c03db914>] (pxa25x_map_io) from [<c03daf84>] (paging_init+0x744/0x8d8)
[<c03daf84>] (paging_init) from [<c03d8ad0>] (setup_arch+0x354/0x608)
[<c03d8ad0>] (setup_arch) from [<c03d68d4>] (start_kernel+0xa8/0x3dc)
[<c03d68d4>] (start_kernel) from [<a0008040>] (0xa0008040)
Code: e5904008 e0811004 e1520001 2a000005 (e7f001f2)
---[ end trace f24b6c88ae00fa9a ]---
Kernel panic - not syncing: Attempted to kill the idle task!
---[ end Kernel panic - not syncing: Attempted to kill the idle task!

Cc: <stable@vger.kernel.org>
Reported-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-10-20 21:11:40 +02:00
Carlo Caione
69a160a054 ARM: defconfig: update multi_v7_defconfig
Update the multi_v7_defconfig enabling the watchdog driver for Meson
SoCs.

Signed-off-by: Carlo Caione <carlo@caione.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-10-20 21:02:14 +02:00
Michal Simek
2329efbbca ARM: zynq: DT: trivial: Fix mc node
sed -i 's/}\ ;/};/g'

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-10-20 15:20:17 +02:00
Michal Simek
6714297b1b ARM: zynq: DT: Add cadence watchdog node
Add the cadence watchdog node to the Zynq devicetree.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-10-20 15:20:16 +02:00
Michal Simek
6c7ba4157b ARM: zynq: DT: Add missing reference for memory-controller
Add missing reference for memory-controller.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-10-20 15:20:09 +02:00
Michal Simek
70472c4328 ARM: zynq: DT: Add missing reference for ADC
Add missing reference for ADC node.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-10-20 15:19:17 +02:00