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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Olof Johansson:
"New or improved SoC support:
- add support for Atmel's SAMA5D2 SoC
- add support for Freescale i.MX6UL
- improved support for TI's DM814x platform
- misc fixes and improvements for RockChip platforms
- Marvell MVEBU suspend/resume support
A few driver changes that ideally would belong in the drivers branch
are also here (acked by appropriate maintainers):
- power key input driver for Freescale platforms (svns)
- RTC driver updates for Freescale platforms (svns/mxc)
- clk fixes for TI DM814/816X
+ a bunch of other changes for various platforms"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
ARM: rockchip: pm: Fix PTR_ERR() argument
ARM: imx: mach-imx6ul: Fix allmodconfig build
clk: ti: fix for definition movement
ARM: uniphier: drop v7_invalidate_l1 call at secondary entry
memory: kill off set_irq_flags usage
rtc: snvs: select option REGMAP_MMIO
ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE
ARM: BCM: Enable ARM erratum 798181 for BRCMSTB
ARM: OMAP2+: Fix power domain operations regression caused by 81xx
ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend
ARM: rockchip: set correct stabilization thresholds in suspend
ARM: rockchip: rename osc_switch_to_32k variable
ARM: imx6ul: add fec MAC refrence clock and phy fixup init
ARM: imx6ul: add fec bits to GPR syscon definition
rtc: mxc: add support of device tree
dt-binding: document the binding for mxc rtc
rtc: mxc: use a second rtc clock
ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback
soc: mediatek: Fix SCPSYS compilation
ARM: at91/soc: add basic support for new sama5d2 SoC
...
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set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:
IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN
For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also set IRQ_NOPROBE and this has been maintained although it is not
clear that is really needed. There appears to be a great deal of blind
copy and paste of this code.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
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If for some reason the GPMC device hasn't been probed yet, gpmc_base is
going to be NULL. Because there's no context yet to be saved, just turn
these functions into no-ops until that device gets probed.
Unable to handle kernel NULL pointer dereference at virtual address 00000010
pgd = c0204000
[00000010] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc5-next-20150804-05947-g23f38fe8eda9 #1
Hardware name: Generic OMAP3-GP (Flattened Device Tree)
task: c0e623e8 ti: c0e5c000 task.ti: c0e5c000
PC is at omap3_gpmc_save_context+0x8/0xc4
LR is at omap_sram_idle+0x154/0x23c
pc : [<c087c7ac>] lr : [<c023262c>] psr: 60000193
sp : c0e5df40 ip : c0f92a80 fp : c0999eb0
r10: c0e57364 r9 : c0e66f14 r8 : 00000003
r7 : 00000000 r6 : 00000003 r5 : 00000000 r4 : c0f5f174
r3 : c0fa4fe8 r2 : 00000000 r1 : 00000000 r0 : fa200280
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c5387d Table: 80204019 DAC: 00000015
Process swapper/0 (pid: 0, stack limit = 0xc0e5c220)
Stack: (0xc0e5df40 to 0xc0e5e000)
df40: 00000000 c0e66ef8 c0f5f1a4 00000000 00000003 c02333a4 c3813822 00000000
df60: 00000000 c0e5a5c8 cfb8a5d0 c07f0c44 0e4f1d7e 00000000 00000000 00000000
df80: c3813822 00000000 cfb8a5d0 c0e5e4e4 cfb8a5d0 c0e66f14 c0e5a5c8 c0e5e54c
dfa0: c0e5e544 c0e57364 c0999eb0 c0277758 000000fa c0f5d000 00000000 c0d61c18
dfc0: ffffffff ffffffff 00000000 c0d61674 00000000 c0df7a48 00000000 c0f5d5d4
dfe0: c0e5e4c0 c0df7a44 c0e634f8 80204059 00000000 8020807c 00000000 00000000
[<c087c7ac>] (omap3_gpmc_save_context) from [<c023262c>] (omap_sram_idle+0x154/0x23c)
[<c023262c>] (omap_sram_idle) from [<c02333a4>] (omap3_enter_idle_bm+0xec/0x1a8)
[<c02333a4>] (omap3_enter_idle_bm) from [<c07f0c44>] (cpuidle_enter_state+0xbc/0x284)
[<c07f0c44>] (cpuidle_enter_state) from [<c0277758>] (cpu_startup_entry+0x174/0x24c)
[<c0277758>] (cpu_startup_entry) from [<c0d61c18>] (start_kernel+0x358/0x3c0)
[<c0d61c18>] (start_kernel) from [<8020807c>] (0x8020807c)
Code: c0ccace8 c0ccacc0 e59f30b4 e5932000 (e5921010)
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Suggested-by: Javier Martinez Canillas <javier@dowhile0.org>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Roger Quadros <rogerq@ti.com>
[tony@atomide.com: updated description as suggested by Javier]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We support decoding the bootloader values if DEBUG is defined.
But we also need to change the struct omap_hwmod flags to have
HWMOD_INIT_NO_RESET to avoid the GPMC being reset during the
boot. Otherwise just the default timings will be displayed
instead of the bootloader configured timings.
This also allows us to clean up the various GPMC related
hwmod flags. For debugging, we only need HWMOD_INIT_NO_RESET,
and HWMOD_INIT_NO_IDLE is not needed.
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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We currently artificially limit the parsing of GPMC connected
devices based on the device name. Let's stop doing that, it's
confusing as adding devices to .dts files with using normal
names like fpga and usb will currently cause them to not probe.
Cc: Roger Quadros <rogerq@ti.com>
Reported-by: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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GPMC_CONFIG1_i parameters CLKACTIVATIONTIME and WAITMONITORINGTIME
have reserved values.
Raise an error if calculated timings try to program reserved values.
GPMC_CONFIG1_i ATTACHEDDEVICEPAGELENGTH and DEVICESIZE were already checked
when parsing the DT.
Explicitly comment invalid values on gpmc_cs_show_timings for
-CLKACTIVATIONTIME
-WAITMONITORINGTIME
-DEVICESIZE
-ATTACHEDDEVICEPAGELENGTH
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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The WAITMONITORINGTIME is expressed as a number of GPMC_CLK clock cycles,
even though the access is defined as asynchronous, and no GPMC_CLK clock
is provided to the external device. Still, GPMCFCLKDIVIDER is used as a divider
for the GPMC clock, so it must be programmed to define the
correct WAITMONITORINGTIME delay.
This patch correctly computes WAITMONITORINGTIME in GPMC_CLK cycles instead of GPMC_FCLK cycles,
both during programming (gpmc_cs_set_timings) and during retrieval (gpmc_cs_show_timings).
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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The WAITMONITORINGTIME is expressed as a number of GPMC_CLK clock cycles,
even though the access is defined as asynchronous, and no GPMC_CLK clock
is provided to the external device. Still, GPMCFCLKDIVIDER is used as a divider
for the GPMC clock, so it must be programmed to define the
correct WAITMONITORINGTIME delay.
Calculate GPMCFCLKDIVIDER independent of gpmc,sync-clk-ps in DT for
pure asynchronous accesses, i.e. both read and write asynchronous.
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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The WAITMONITORINGTIME is expressed as a number of GPMC_CLK clock cycles,
even though the access is defined as asynchronous, and no GPMC_CLK clock
is provided to the external device. Still, GPMCFCLKDIVIDER is used as a divider
for the GPMC clock, so it must be programmed to define the
correct WAITMONITORINGTIME delay.
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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DTS output was formatted to require additional work when copy-pasting into DTS.
Nano-second timings were replaced with interval of values that produce the same
number of clock ticks.
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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GPMC debug output is aligned to 10 characters for field names.
However, some fields have bigger names, screwing up the alignment.
Consequently, alignment was changed to longest field name (17 chars) for now.
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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This patch adds support for spawning buses as children of the GPMC.
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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OMAP2+ GPMC driver undefines DEBUG, which makes it unnecessarily
hard to turn DEBUG on. Remove the offending lines.
Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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Fix sparse warning:
warning: symbol 'gpmc_cs_get_name' was not declared. Should it be static?
Signed-off-by: Semen Protsenko <semen.protsenko@globallogic.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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Some GPMC_CONFIG7 register bits marked as "RESERVED", means they
shouldn't be overwritten. A typical approach to handle such bits called
"Read-Modify-Write". Writing procedure used in gpmc_cs_set_memconf()
utilizes RMW technique, but implemented incorrectly. Due to obvious typo
in code read register value is being rewritten by another value, which
leads to loss of read RESERVED bits. This patch fixes this.
While at it, replace magic numbers with named constants to improve code
readability.
Signed-off-by: Semen Protsenko <semen.protsenko@globallogic.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC/OMAP GPMC driver cleanup and move from Arnd Bergmann:
"The GPMC driver has traditionally been considered a part of the OMAP
platform code and tightly interweaved with some of the boards.
With this cleanup, it has finally come to the point where it makes
sense to move it out of arch/arm into drivers/memory, where we already
have other drivers for similar hardware. The cleanups are still
ongoing, with the goal of eventually having a standalone driver that
does not require an interface to architecture code.
This is a separate branch because of dependencies on multiple other
branches, and to keep the drivers changes separate from the normal
cleanups"
* tag 'omap-gpmc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
memory: gpmc: Move omap gpmc code to live under drivers
ARM: OMAP2+: Move GPMC initcall to devices.c
ARM: OMAP2+: Prepare to move GPMC to drivers by platform data header
ARM: OMAP2+: Remove unnecesary include in GPMC driver
ARM: OMAP2+: Drop board file for 3430sdp
ARM: OMAP2+: Drop board file for ti8168evm
ARM: OMAP2+: Drop legacy code for gpmc-smc91x.c
ARM: OMAP2+: Require proper GPMC timings for devices
ARM: OMAP2+: Show bootloader GPMC timings to allow configuring the .dts file
ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select
ARM: OMAP2+: gpmc: Sanity check GPMC fck on probe
ARM: OMAP2+: gpmc: Keep Chip Select disabled while configuring it
ARM: OMAP2+: gpmc: Always enable A26-A11 for non NAND devices
ARM: OMAP2+: gpmc: Error out if timings fail in gpmc_probe_generic_child()
ARM: OMAP2+: gpmc: Print error message in set_gpmc_timing_reg()
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Just move to drivers as further clean-up can now happen there
finally.
Let's also add Roger and me to the MAINTAINERS so we get
notified for any patches related to GPMC.
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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