On am437x-gp-evm, pixcir_i2c_ts can wakeup the system from low power
state via pinctrl and IO daisy chain using generic wakeirq framework.
With commit 3fffd128 ("i2c: allow specifying separate wakeup
interrupt in device tree") i2c core allows optional wakeirq to be
specified via device tree. Add wakeup irq entry to enable pixcir_i2c_ts
to wake the system from low power state.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

As per mmc device tree binding documentation card detect gpio has
to be active low signal. When a hardware is designed with active
high card detect, gpio polarity has to be changed with
cd-inverted dt property.

In AM43xx the card detect gpio is designed as active low gpio.
So correcting the dt card detect gpio definition.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add DCAN sleep pins to save some power during suspend.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

rtc can either be supplied from internal 32k clock or external crystal
generated 32k clock. Internal clock is SOC specific and the external
clock is board dependent. Adding the corresponding nodes.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

DCDC5 and DCDC6 supply rtc and need to be on for accessing the module.

On A1 revision of the TPS65218, FSEAL bit would be undefined without
coin-cell present which in many cases led to it being set, causing DCDC5
and DCDC6 to stay active, but also leading to unexplained failures when
it was not. On B1 revision, FSEAL is always 0 when no coin-cell is present
so this patch is required on boards with B1 revision to ever work. This
implementation works on boards with either A1 or B1 revision and makes
sure that DCDC5 and DCDC6 always stay active.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add eMMC pinmux and mmc2 related bits. We keep the mmc2
controller disabled as it conflits with gpmc/NAND.

To enable emmc, simply set mmc2 controller node to "okay"
and set the gpmc node to "disabled" and change the
SelEMMCorNAND gpio-hog to output-high.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

On this board either eMMC or NAND can work based on the level of
spi2_cs0.gpio0_23. Add a gpio-hog to enable configuration of this
pin in the device tree.

Move pinmux for spi2_cs0 (SEL_eMMCorNANDn) out of
NAND node into gpio0 so it is initialized with gpio0.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add serialN aliases for all 6 UART instances on
the AM437x SoC so each board's .dts file does not
have to define its own aliases.

Remove the alias added for am437x-gp-evm.dts now
that we have the aliases defined in am4372.dtsi
file.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

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

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

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

this patch does the following:
1: adds DT node for fixed oscillator.
2: adds DT node entries for ov2659 sensor
3: adds remote-endpoint entry for VPFE.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

enable mmc3 used for wlan and uart3 used for bluetooth

configure the gpios used for wlan and bluetooth controls

add fixed voltage regulator used for wlan power control
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

OMAP4/5 has been (ab)using the gic_arch_extn to provide
wakeup from suspend, and it makes a lot of sense to convert
this code to use stacked domains instead.

This patch does just this, updating the DT files to actually
reflect what the HW provides.

BIG FAT WARNING: because the DTs were so far lying by not
exposing the WUGEN HW block, kernels with this patch applied
won't have any suspend-resume facility when booted with old DTs,
and old kernels with updated DTs won't even boot.

On a platform with this patch applied, the system looks like
this:

root@bacon-fat:~# cat /proc/interrupts
            CPU0       CPU1
 16:          0          0     WUGEN  37  gp_timer
 19:     233799     155916       GIC  27  arch_timer
 23:          0          0     WUGEN   9  l3-dbg-irq
 24:          1          0     WUGEN  10  l3-app-irq
 27:        282          0     WUGEN  13  omap-dma-engine
 44:          0          0  4ae10000.gpio  13  DMA
294:          0          0     WUGEN  20  gpmc
297:        506          0     WUGEN  56  48070000.i2c
298:          0          0     WUGEN  57  48072000.i2c
299:          0          0     WUGEN  61  48060000.i2c
300:          0          0     WUGEN  62  4807a000.i2c
301:          8          0     WUGEN  60  4807c000.i2c
308:       2439          0     WUGEN  74  OMAP UART2
312:        362          0     WUGEN  83  mmc2
313:        502          0     WUGEN  86  mmc0
314:         13          0     WUGEN  94  mmc1
350:          0          0      PRCM  pinctrl, pinctrl
406:   35155709          0       GIC 109  ehci_hcd:usb1
407:          0          0     WUGEN   7  palmas
409:          0          0     WUGEN 119  twl6040
410:          0          0   twl6040   5  twl6040_irq_ready
411:          0          0   twl6040   0  twl6040_irq_th
IPI0:          0          1  CPU wakeup interrupts
IPI1:          0          0  Timer broadcast interrupts
IPI2:      95334     902334  Rescheduling interrupts
IPI3:          0          0  Function call interrupts
IPI4:        479        648  Single function call interrupts
IPI5:          0          0  CPU stop interrupts
IPI6:          0          0  IRQ work interrupts
IPI7:          0          0  completion interrupts
Err:          0
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1426088629-15377-8-git-send-email-marc.zyngier@arm.comSigned-off-by: Jason Cooper <jason@lakedaemon.net>

Add device tree nodes and pinmux entries for Video Processing
Front End (VPFE) on am437x gp evm.
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add DCAN support for AM437x GP EVM with both DCAN instances.

[Roger Q] Updated output pin to not use pull up.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

This patch adds tscadc DT entries for am437x-gp-evm
and am43x-epos-evm.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

DCDC3 supplies voltage to DDR. Fix DCDC3 volatge to 1.5V which is the reset
value. Programming to a non-reset value while executing from DDR will result
in random hangs.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

NAND uses wait pin only to indicate device readiness after
a block/page operation. It is not use to extend individual
read/write cycle and so read/write wait pin monitoring must
be disabled for NAND.

This patch also gets rid of the below warning when NAND is
accessed for the first time.

omap_l3_noc 44000000.ocp: L3 application error: target 13 mod:1 (unclearable)
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

am437x-gp-evm uses a NAND chip with page size 4096 bytes
and spare area of 225 bytes per page.

For such a setup it is preferrable to use BCH16 ECC scheme over
BCH8. This also makes it compatible with ROM code ECC scheme so
we can boot with NAND after flashing from kernel.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

On the GP EVM, the ambient light sensor is limited to 100KHz on the
I2C bus.

So use 100kHz for I2C on the GP EVM due to this limitation on the
ambient light sensor.
Reported-by: Aparna Balasubramanian <aparnab@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Update the bindings for touchscreen size.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Add TPS65218 device tree nodes. i2c clock frequency setting
also added as part of tps65218 nodes addition. As i2c clock
enabling is required.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Fix i2c nodes indentation.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add DT data for am437x-gp-evm's LCD panel.
Signed-off-by: Sathya Prakash M R <sathyap@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Adds pinmux and DT node for Micron (MT29F4G08AB) x8 NAND device present on
am437x-gp-evm board.
(1) As NAND Flash data lines are muxed with eMMC, Thus at a given time either
    eMMC or NAND can be enabled. Selection between eMMC and NAND is controlled:
    (a) By dynamically driving following GPIO pin from software
        SPI2_CS0(GPIO) == 0 NAND is selected (default)
        SPI2_CS0(GPIO) == 1 eMMC is selected
    (b) By statically using Jumper (J89) on the board

(2) As NAND device connnected to this board has page-size=4K and oob-size=224,
    So ROM code expects boot-loaders to be flashed in BCH16 ECC scheme for
    NAND boot.
Signed-off-by: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add CPSW ethernet support for AM437x GP EVM which has one slave pinned out
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

The VTT regulator for DDR3 termination on the am437x-gp-evm is
controlled by a gpio. It is configured by the bootloader so here we
define an always-on, fixed voltage regulator to hold the gpio.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add touchscreen support for AM437x GP EVM using pixcir
touchscreen controller.

CC: Benoit Cousson <bcousson@baylibre.com>
CC: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Enable
	- USB PHY
	- USB
for am437x-gp-evm
Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Do not reset GPIO5 at boot-up because GPIO5_7 is used
on AM437x GP-EVM to control VTT regulators on DDR3.
Without this some GP-EVM boards will fail to boot because
of DDR3 corruption.
Reported-by: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

enable sd card slot on am437x-gp-evm
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add gpio keys node for am43x gp evm.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>

Enable gpio3, gpio4, it will be used by gpio matrix keys. Also,
can be used by othe peripherals.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>

Add pwm backlight support for gp evm.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>

AM437x GP EVM DTS with pinmux information to make I2C on
EVM usable.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>