The board uses McASP1 <-> tlv320aic3106 for analog audio and has
Headphone out and Line in connectors.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add node for McASP1 along with the needed pinctrl entries.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Analog audio is using this codec on the board.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The same regulator is used by other chips on the board. The power path is:
VBAT -> TPS63031 - Enable signal is V1_8D regulator -> V3_3D.
V3_3D is used by SD slot and tlv320aic3106 codec as well.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

GPIO5_8 is used as a mux switch between LCD and HDMI displays. This mux
affects audio routing as well since in LCD mode HDMI audio is not possible
and when HDMI is selected analog audio is not working.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use simple card for audio support on ePOS-EVM.
The audio on the board is: McASP1 <-> tlv320aic3111 codec.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Analog audio is using this codec on the board.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add node for McASP1 along with the needed pinctrl entries.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The VBAT and DCDC4 regulator is needed for audio support (tlv320aic3111)
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

GPIO2_1 is used as a mux switch between LCD and HDMI displays. This mux
affects audio routing as well since in LCD mode HDMI audio is not possible
and when HDMI is selected analog audio is not working.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The sound support consist only Headset output on the board and can be
handled by "simple-audio-card".
Also enable the Line-In route as the board has support for it.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

When McASP is not in use the pins can be put to sleep mode to conserve
power.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

More and more boards are moving to have audio support via simple-card.
At the same time enable options needed for most am335x and am43xx board for
audio support: McASP and TLV320AIC3X codecs.
The later two has been selected by the CONFIG_SND_AM33XX_SOC_EVM option, but
the aim is to convert all boards to use simple card.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

On DRA72 EVM, cpsw slave1 is muxed with VIN2A, hence switch to cpsw
slave0 for ethernet. Add gpio hog entry to pcf_gpio_21 in order to
select cpsw slave0.
Signed-off-by: NVignesh R <vigneshr@ti.com>
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The interconnects on dm816x are like on omap4, so we should use
l3-noc instead of l3-smx. But as the related SoC specific
l3_target_data is still missing from omap_l3_noc let's just
remove the entry for now.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Reported-by: NMatthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Also, reduce the maximum SPI device speed to the max. supported by the
LCD controller used on the LGPhilips LB035Q02 panel for this board.
Signed-off-by: NAsh Charles <ashcharles@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Some Overo COM models include NAND flash in the on-board
package-on-package (PoP) chip.  Add this to the base Overo devicetree.

Most commonly, this is 512MB NAND from the Micron MT29C4G96MAZ family
but, as discussed [1], several different sized are possible. To
support different sizes, the last partition should fill to the end of
the chip (i.e. MTDPART_SIZ_FULL).

With thanks to Florian Vaussard for the original patch [2] and Adam Lee for
updating it here.

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/175760.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/175449.htmlSigned-off-by: NAsh Charles <ashcharles@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Both Gumstix Overo and Overo Storm COMs use TWL4030 audio module
connected to the McBSP2.  As such, enable the McBSP2 module in the
common device tree file, omap3-overo-base.dtsi, rather than in the
processor-specific device tree files, omap3-overo.dtsi and
omap3-overo-storm.dtsi.  This corrects audio on the Storm COMs where
the setting was accidentally missing from the device tree.
Signed-off-by: NAsh Charles <ashcharles@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The Gumstix "Tobi-Duo" expansion board [1] can be used with either
OMAP3 Overo or Overo Storm COMs.  It provides two NICs using LAN9221
chips.
It is necessary to duplicate the interface information for the
second SMSC9221 chip as discussed [2].

[1] https://store.gumstix.com/index.php/products/241/
[2] http://www.spinics.net/lists/linux-omap/msg115282.htmlSigned-off-by: NAsh Charles <ashcharles@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use new binding for the external tda19988 HDMI encoder.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The sDMA requests are routed through the DMA crossbar and without the
crossbar only peripherals using DMA request 0-127 can be used.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add the Wakeup M3 remote processor device node for
the AM4372 SoC. The WkupM3 remote processor is used
to implement and achieve low-power functionality on
the AM33xx & AM43xx SoCs.

This node is added as a child of the recently added
l4_wkup node to reflect its presence within the SoC.
Signed-off-by: NSuman Anna <s-anna@ti.com>
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The WakeupM3 remote processor device node has been moved to
be a child node of the newly created l4_wkup node, to reflect
its presence properly within the SoC. The node was added
previously before any driver support, it is now updated as
per the wkup_m3_rproc bindings added alongside the driver
support.
Signed-off-by: NSuman Anna <s-anna@ti.com>
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use pdata-quirks to provide platform data required for reset
management during boot and shutdown of the wkup_m3 processor
on both the AM33xx and AM43xx SoCs. The WkupM3 remote processor
is used to implement and achieve low-power functionality on
the AM33xx & AM43xx SoCs.
Signed-off-by: NSuman Anna <s-anna@ti.com>
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The CCI device node was added to vexpress CA15_A7(i.e. TC2) much before
the CCI PMU support and binding was added. This patch adds the missing
PMU node so that CCI PMUs can be used on TC2.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: NPunit Agrawal <punit.agrawal@arm.com>
Signed-off-by: NSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: NKevin Hilman <khilman@linaro.org>

The dts for the CoreTile Express A15x2 A7x3 (TC2) only describes the
PMUs of the Cortex-A15 CPUs, and not the Cortex-A7 CPUs.

Now that we have a mechanism for describing disparate PMUs and their
interrupts in device tree, this patch makes use of these to describe the
PMUs for all CPUs in the system. For consistency, the existing A15 PMU
interrupt-affinity property is reflowed across two lines.
Signed-off-by: NMark Rutland <mark.rutland@arm.com>
Acked-by: NWill Deacon <will.deacon@arm.com>
Acked-by: NSudeep Holla <sudeep.holla@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NKevin Hilman <khilman@linaro.org>

When DSS nodes were added to am4372.dtsi, the rfbi node was not marked
as disabled. This should have been done, as the rule of thumb is to
disable all DSS nodes that are not used, and especially rfbi, as we
don't have a driver for rfbi.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Without this USB2 breaks if USB1 is disabled or USB1
initializes after USB2 e.g. due to deferred probing.

Fixes: 5a0f93c6 ("ARM: dts: Add am57xx-beagle-x15")
Signed-off-by: NRoger Quadros <rogerq@ti.com>
Cc: stable@vger.kernel.org (v3.19+)
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add node for TI AM4372 EMIF. Without this we get a warning with the
recent commit fabbe6df (ARM: OMAP: AM43xx hwmod: Add data for am43xx
emif hwmod).
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>
Tested-by: NFelipe Balbi <balbi@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: NTony Lindgren <tony@atomide.com>

This reverts commit 3d76be5b.

The latest revision of Beaglebone Black does not support RTC-only mode.

To avoid potential hardware damage, RTC-only mode was disabled by
default by commit 7a6cb0ab ("ARM: dts: am335x-boneblack: disable
RTC-only sleep to avoid hardware damage").

Unfortunately, an incorrect fix had already been applied, which instead
of just disabling RTC-only mode, prevents the Beaglebone from powering
down at all.

Revert this patch to fix the power-off regression.
Signed-off-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Now that we have simplefb support, we can enable it in our defconfig. Also
enable the framebuffer console, so that we are sure that we actually get
something displayed in any case.

And while we're at it, enable the module support.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Commit b2b3a8b9 ("power/reset: Remove sun6i reboot driver") removed
the sun6i reboot driver. But sunxi_defconfig and multi_v7_defconfig
still contain the symbol CONFIG_POWER_RESET_SUN6I that was deprecated
by that commit, so remove it.
Signed-off-by: NTimo Sigurdsson <public_timo.s@silentcreek.de>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Add machine support for the Allwinner A33 quad core cortex-a7 based SoC,
which is similar to the A23 SoC.
Signed-off-by: NVishnu Patekar <vishnupatekar0510@gmail.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: NChen-Yu Tsai <wens@csie.org>

The Allwinner H3 is a quad-core Cortex-A7-based SoC. It is very similar
to other sun8i family SoCs like the A23.
Signed-off-by: NJens Kuske <jenskuske@gmail.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

We don't want GCC optimising our memset_io(), memcpy_fromio() or
memcpy_toio() variants, so we must not call one of the standard
functions.  Provide a separate name for our assembly memcpy() and
memset() functions, and use that instead, thereby bypassing GCC's
ability to optimise these operations.

GCCs optimisation may introduce unaligned accesses which are invalid
for device mappings.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Convert the ioremap*() preprocessor macros to real functions, moving
them out of line.  This allows us to kill off __arm_ioremap(), and
__arm_iounmap() helpers, and remove __arm_ioremap_pfn_caller() from
global view.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

ioremap_wt() was added by aliasing it to ioremap_nocache(), which is a
device mapping.  Device mappings do not allow unaligned accesses, but
it appears that GCC is able to inline its own memcpy() implementation
which may use such accesses.  The only user of this is pmem, which
uses memcpy() on the region.

Therefore, this is unsafe.  We must implement ioremap_wt() correctly
for ARM, or not at all.

This patch adds a more correct implementation by re-using ioremap_wc()
to provide a normal-memory non-cacheable mapping.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add documentation of the ARM specific behaviour of the mappings setup by
the ioremap() series of macros.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Wolfram Sang reported an unannotated irqs-off warning from lockdep:

WARNING: CPU: 0 PID: 282 at kernel/locking/lockdep.c:3557 check_flags+0x84/0x1f4()
DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
CPU: 0 PID: 282 Comm: rcS Tainted: G        W 4.1.0-00002-g5b076054611833 #179
Hardware name: Generic Emma Mobile EV2 (Flattened Device Tree)
Backtrace:
[<c0012c94>] (dump_backtrace) from [<c0012e3c>] (show_stack+0x18/0x1c)
 r6:c02dcc67 r5:00000009 r4:00000000 r3:00400000
[<c0012e24>] (show_stack) from [<c02510c8>] (dump_stack+0x20/0x28)
[<c02510a8>] (dump_stack) from [<c0022c44>] (warn_slowpath_common+0x8c/0xb4)
[<c0022bb8>] (warn_slowpath_common) from [<c0022cd8>] (warn_slowpath_fmt+0x38/0x40)
 r8:c780f470 r7:00000000 r6:00000000 r5:c03b0570 r4:c0b7ec04
[<c0022ca4>] (warn_slowpath_fmt) from [<c004cd38>] (check_flags+0x84/0x1f4)
 r3:c02e13d8 r2:c02dceaa
[<c004ccb4>] (check_flags) from [<c0050e50>] (lock_acquire+0x4c/0xbc)
 r5:00000000 r4:60000193
[<c0050e04>] (lock_acquire) from [<c0256000>] (_raw_spin_lock+0x34/0x44)
 r9:000a8d5c r8:00000001 r7:c7806000 r6:c780f460 r5:c03b06a0 r4:c780f460
[<c0255fcc>] (_raw_spin_lock) from [<c005a8cc>] (handle_fasteoi_irq+0x20/0x11c)
 r4:c780f400
[<c005a8ac>] (handle_fasteoi_irq) from [<c0057a4c>] (generic_handle_irq+0x28/0x38)
 r6:00000000 r5:c03b038c r4:00000012 r3:c005a8ac
[<c0057a24>] (generic_handle_irq) from [<c0057ae4>] (__handle_domain_irq+0x88/0xa8)
 r4:00000000 r3:00000026
[<c0057a5c>] (__handle_domain_irq) from [<c000a3cc>] (gic_handle_irq+0x40/0x58)
 r8:10c5347d r7:10c5347d r6:c35b1fb0 r5:c03a6304 r4:c8802000 r3:c35b1fb0
[<c000a38c>] (gic_handle_irq) from [<c0013bc8>] (__irq_usr+0x48/0x60)
Exception stack(0xc35b1fb0 to 0xc35b1ff8)
1fa0:                                     00000061 00000000 000ab736 00000066
1fc0: 00000061 000aa1f0 000a8d54 000a8d54 000a8d88 000a8d5c 000a8cc8 000a8d68
1fe0: 72727272 bef8a528 000398c0 00031334 20000010 ffffffff
 r6:ffffffff r5:20000010 r4:00031334 r3:00000061
---[ end trace cb88537fdc8fa202 ]---
possible reason: unannotated irqs-off.
irq event stamp: 769
hardirqs last  enabled at (769): [<c000f82c>] ret_fast_syscall+0x2c/0x54
hardirqs last disabled at (768): [<c000f80c>] ret_fast_syscall+0xc/0x54
softirqs last  enabled at (0): [<c0020ec4>] copy_process.part.65+0x2e8/0x11dc
softirqs last disabled at (0): [<  (null)>]   (null)

His kernel configuration had:
CONFIG_PROVE_LOCKING=y
CONFIG_TRACE_IRQFLAGS=y
but no IRQSOFF_TRACER, which means entry from userspace can result in the
kernel seeing IRQs off without being notified of that change of state.
Change the IRQSOFF ifdef in the usr_entry macro to TRACE_IRQFLAGS instead.
Tested-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>