[PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

[PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

[Nishanth Menon]

BeagleBoard-X15 is the next generation Open Source Hardware
BeagleBoard based on TI's AM5728 SoC featuring dual core 1.5GHz A15
processor. The platform features 2GB DDR3L (w/dual 32bit busses),
eSATA, 3 USB3.0 ports, integrated HDMI (1920x1080@60), separate LCD
port, video In port, 4GB eMMC, uSD, Analog audio in/out, dual 1G
Ethernet.

For more information, refer to:
BeagleBoard-X15 Wiki:
http://www.elinux.org/Beagleboard:BeagleBoard-X15

AM5728 is part of the Sitara product family whose additional details
will be available: http://www.ti.com/lsds/ti/arm/overview.page

Technical Reference Manual for AM5728 is public domain at:
http://www.ti.com/lit/spruhz6

Just add basic support for the moment, the following updates are needed:
  i)	Ethernet - depends on SoC dts fixes
  ii)	USB Client (USB2) - depends on GPIO extcon
  ii)	HDMI - additional driver fixes pending
  iii)	Audio - additional driver fixes pending

NOTE:
AM5728 Data Manual (SPRS915L - August 2014) section 4.1.1 states: "All
unused power supply balls must be supplied with the voltages specified
in the Section 5.2, Recommended Operating Conditions". This implies
that all unused voltage rails for AM5728 can never be switched off even
if the hardware blocks inside that voltage domain is unused. Switching
off these unused rails may result in stability issues on other domains
and increased leakage and power-on-hour impacts.

Signed-off-by: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
---
Changes in V2 since V1:
	(was updated since v2 inline was posted https://patchwork.kernel.org/patch/5245961/ )
	- Fix the missing squash of proper DDR size.
	- Update commit message on why VDD rails must be always-on
	- Fix commit message typos (thanks to G+ review :P )
	- Explicit palmas sub irq level in dts (it is not configurable,
	  but better to be properly documented)

V1: https://patchwork.kernel.org/patch/5244801/

Additional references:
	- Missing ethernet dtsi patch series: http://marc.info/?t=141388585300001&r=1&w=2
	- Missing USB Client extcon patch series: http://marc.info/?t=141520160800004&r=1&w=2

Tested with omap2plus_defconfig modified as: http://slexy.org/view/s2DRTzUwjj
boot log: http://slexy.org/raw/s25Grf1uoo
based on 3.18-rc1 tag.

Support for u-boot has been posted as well: (series ending
http://patchwork.ozlabs.org/patch/407552/ )

Side note: this patch generates a few unrelated checkpatch warning for
compatible which probably is part of appropriate driver documentation
fixes (functionality is already present).

 arch/arm/boot/dts/Makefile              |    1 +
 arch/arm/boot/dts/am57xx-beagle-x15.dts |  405 +++++++++++++++++++++++++++++++
 2 files changed, 406 insertions(+)
 create mode 100644 arch/arm/boot/dts/am57xx-beagle-x15.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 38c89ca..eee1e4f 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -347,6 +347,7 @@ dtb-$(CONFIG_SOC_OMAP5) += omap5-cm-t54.dtb \
 	omap5-sbc-t54.dtb \
 	omap5-uevm.dtb
 dtb-$(CONFIG_SOC_DRA7XX) += dra7-evm.dtb \
+	am57xx-beagle-x15.dtb \
 	dra72-evm.dtb
 dtb-$(CONFIG_ARCH_ORION5X) += orion5x-lacie-d2-network.dtb \
 	orion5x-lacie-ethernet-disk-mini-v2.dtb \
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
new file mode 100644
index 0000000..49edbda
--- /dev/null
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -0,0 +1,405 @@
+/*
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "dra74x.dtsi"
+#include <dt-bindings/clk/ti-dra7-atl.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "TI AM5728 BeagleBoard-X15";
+	compatible = "ti,am572x-beagle-x15", "ti,am5728", "ti,dra742", "ti,dra74", "ti,dra7";
+
+	aliases {
+		rtc0 = &mcp_rtc;
+		rtc1 = &tps659038_rtc;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
+
+	vdd_3v3: fixedregulator-vdd_3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_3v3";
+		vin-supply = <&regen1>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	vtt_fixed: fixedregulator-vtt {
+		/* TPS51200 */
+		compatible = "regulator-fixed";
+		regulator-name = "vtt_fixed";
+		vin-supply = <&smps3_reg>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+		enable-active-high;
+		gpio = <&gpio7 11 GPIO_ACTIVE_HIGH>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_pins_default>;
+
+		led@0 {
+			label = "beagle-x15:usr0";
+			gpios = <&gpio7 9 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			default-state = "off";
+		};
+
+		led@1 {
+			label = "beagle-x15:usr1";
+			gpios = <&gpio7 8 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "cpu0";
+			default-state = "off";
+		};
+
+		led@2 {
+			label = "beagle-x15:usr2";
+			gpios = <&gpio7 14 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc0";
+			default-state = "off";
+		};
+
+		led@3 {
+			label = "beagle-x15:usr3";
+			gpios = <&gpio7 15 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "ide-disk";
+			default-state = "off";
+		};
+	};
+};
+
+&dra7_pmx_core {
+	leds_pins_default: leds_pins_default {
+		pinctrl-single,pins = <
+			0x3a8 (PIN_OUTPUT | MUX_MODE14)	/* spi1_d1.gpio7_8 */
+			0x3ac (PIN_OUTPUT | MUX_MODE14)	/* spi1_d0.gpio7_9 */
+			0x3c0 (PIN_OUTPUT | MUX_MODE14)	/* spi2_sclk.gpio7_14 */
+			0x3c4 (PIN_OUTPUT | MUX_MODE14)	/* spi2_d1.gpio7_15 */
+		>;
+	};
+
+	i2c1_pins_default: i2c1_pins_default {
+		pinctrl-single,pins = <
+			0x400 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_sda.sda */
+			0x404 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_scl.scl */
+		>;
+	};
+
+	i2c3_pins_default: i2c3_pins_default {
+		pinctrl-single,pins = <
+			0x2a4 (PIN_INPUT| MUX_MODE10)	/* mcasp1_aclkx.i2c3_sda */
+			0x2a8 (PIN_INPUT| MUX_MODE10)	/* mcasp1_fsx.i2c3_scl */
+		>;
+	};
+
+	uart3_pins_default: uart3_pins_default {
+		pinctrl-single,pins = <
+			0x248 (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_rxd.rxd */
+			0x24c (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_txd.txd */
+		>;
+	};
+
+	mmc1_pins_default: mmc1_pins_default {
+		pinctrl-single,pins = <
+			0x36c (PIN_INPUT | MUX_MODE14)	/* mmc1sdcd.gpio219 */
+			0x354 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+			0x358 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+			0x35c (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+			0x360 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+			0x364 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+			0x368 (PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+		>;
+	};
+
+	mmc2_pins_default: mmc2_pins_default {
+		pinctrl-single,pins = <
+			0x9c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+			0xb0 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+			0xa0 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+			0xa4 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+			0xa8 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+			0xac (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+			0x8c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+			0x90 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+			0x94 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+			0x98 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+		>;
+	};
+
+	tps659038_pins_default: tps659038_pins_default {
+		pinctrl-single,pins = <
+			0x418 (PIN_INPUT_PULLUP | MUX_MODE14)	/* wakeup0.gpio1_0 */
+		>;
+	};
+
+	tmp102_pins_default: tmp102_pins_default {
+		pinctrl-single,pins = <
+			0x3C8 (PIN_INPUT_PULLUP | MUX_MODE14)	/* spi2_d0.gpio7_16 */
+		>;
+	};
+
+	mcp79410_pins_default: mcp79410_pins_default {
+		pinctrl-single,pins = <
+			0x424 (PIN_INPUT_PULLUP | MUX_MODE1)	/* wakeup3.sys_nirq1 */
+		>;
+	};
+
+	usb1_pins: pinmux_usb1_pins {
+		pinctrl-single,pins = <
+			0x280 (PIN_INPUT_SLEW | MUX_MODE0) /* usb1_drvvbus */
+		>;
+	};
+
+};
+
+&i2c1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins_default>;
+	clock-frequency = <400000>;
+
+	tps659038: tps659038@58 {
+		compatible = "ti,tps659038";
+		reg = <0x58>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&tps659038_pins_default>;
+
+		#interrupt-cells = <2>;
+		interrupt-controller;
+
+		ti,system-power-controller;
+
+		tps659038_pmic {
+			compatible = "ti,tps659038-pmic";
+
+			regulators {
+				smps12_reg: smps12 {
+					/* VDD_MPU */
+					regulator-name = "smps12";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				smps3_reg: smps3 {
+					/* VDD_DDR */
+					regulator-name = "smps3";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				smps45_reg: smps45 {
+					/* VDD_DSPEVE, VDD_IVA, VDD_GPU */
+					regulator-name = "smps45";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1150000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				smps6_reg: smps6 {
+					/* VDD_CORE */
+					regulator-name = "smps6";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <1030000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				/* SMPS7 unused */
+
+				smps8_reg: smps8 {
+					/* VDD_1V8 */
+					regulator-name = "smps8";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				/* SMPS9 unused */
+
+				ldo1_reg: ldo1 {
+					/* VDD_SD  */
+					regulator-name = "ldo1";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-boot-on;
+				};
+
+				ldo2_reg: ldo2 {
+					/* VDD_SHV5 */
+					regulator-name = "ldo2";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldo3_reg: ldo3 {
+					/* VDDA_1V8_PHY */
+					regulator-name = "ldo3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldo9_reg: ldo9 {
+					/* VDD_RTC */
+					regulator-name = "ldo9";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldoln_reg: ldoln {
+					/* VDDA_1V8_PLL */
+					regulator-name = "ldoln";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldousb_reg: ldousb {
+					/* VDDA_3V_USB: VDDA_USBHS33 */
+					regulator-name = "ldousb";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-boot-on;
+				};
+
+				regen1: regen1 {
+					/* VDD_3V3_ON */
+					regulator-name = "regen1";
+					regulator-boot-on;
+					regulator-always-on;
+				};
+			};
+		};
+
+		tps659038_rtc: tps659038_rtc {
+			compatible = "ti,palmas-rtc";
+			interrupt-parent = <&tps659038>;
+			interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+			wakeup-source;
+		};
+
+		tps659038_pwr_button: tps659038_pwr_button {
+			compatible = "ti,palmas-pwrbutton";
+			interrupt-parent = <&tps659038>;
+			interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+			wakeup-source;
+			ti,palmas-long-press-seconds = <12>;
+		};
+	};
+
+	tmp102: tmp102@48 {
+		compatible = "ti,tmp102";
+		reg = <0x48>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&tmp102_pins_default>;
+		interrupt-parent = <&gpio7>;
+		interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+&i2c3 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins_default>;
+	clock-frequency = <400000>;
+
+	mcp_rtc: rtc@6f {
+		compatible = "microchip,mcp7941x";
+		reg = <0x6f>;
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_LOW>;  /* IRQ_SYS_1N */
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&mcp79410_pins_default>;
+
+		vcc-supply = <&vdd_3v3>;
+		wakeup-source;
+	};
+};
+
+&gpio7 {
+	ti,no-reset-on-init;
+	ti,no-idle-on-init;
+};
+
+&cpu0 {
+	cpu0-supply = <&smps12_reg>;
+	voltage-tolerance = <1>;
+};
+
+&uart3 {
+	status = "okay";
+	interrupts-extended = <&gic GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
+			      <&dra7_pmx_core 0x248>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins_default>;
+};
+
+&mmc1 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins_default>;
+
+	vmmc-supply = <&ldo1_reg>;
+	vmmc_aux-supply = <&vdd_3v3>;
+	pbias-supply = <&pbias_mmc_reg>;
+	bus-width = <4>;
+	cd-gpios = <&gpio6 27 0>; /* gpio 219 */
+};
+
+&mmc2 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins_default>;
+
+	vmmc-supply = <&vdd_3v3>;
+	bus-width = <8>;
+	ti,non-removable;
+	cap-mmc-dual-data-rate;
+};
+
+&sata {
+	status = "okay";
+};
+
+&usb2_phy1 {
+	phy-supply = <&ldousb_reg>;
+};
+
+&usb1 {
+	dr_mode = "host";
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb1_pins>;
+};
-- 
1.7.9.5

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Re: [PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

[Andreas Färber]

Hi,

Am 07.11.2014 um 18:47 schrieb Nishanth Menon:
> BeagleBoard-X15 is the next generation Open Source Hardware
> BeagleBoard based on TI's AM5728 SoC featuring dual core 1.5GHz A15
> processor. The platform features 2GB DDR3L (w/dual 32bit busses),
> eSATA, 3 USB3.0 ports, integrated HDMI (1920x1080@60), separate LCD
> port, video In port, 4GB eMMC, uSD, Analog audio in/out, dual 1G
> Ethernet.
> 
> For more information, refer to:
> BeagleBoard-X15 Wiki:
> http://www.elinux.org/Beagleboard:BeagleBoard-X15

That page is very empty... is it the correct URL?

Regards,
Andreas

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GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 21284 AG Nürnberg
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RE: [PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

[Gerald Coley]

This is the correct page. Yes, it is very empty.

 I am working on populating it. It will be later next week before I can get
some of the things up there.

Gerald


-----Original Message-----
From: Andreas Färber [mailto:afaerber-l3A5Bk7waGM@public.gmane.org] 
Sent: Friday, November 7, 2014 12:34 PM
To: Nishanth Menon
Cc: Tony Lindgren; devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; beagleboard@googlegroups.com;
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; balbi-l0cyMroinI0@public.gmane.org; gerald-xujr6ya/RELK0SuXxyvBAOcjAYwBJIVk@public.gmane.orgm;
fcooper-l0cyMroinI0@public.gmane.org; trini-l0cyMroinI0@public.gmane.org; linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org;
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

Hi,

Am 07.11.2014 um 18:47 schrieb Nishanth Menon:
> BeagleBoard-X15 is the next generation Open Source Hardware 
> BeagleBoard based on TI's AM5728 SoC featuring dual core 1.5GHz A15 
> processor. The platform features 2GB DDR3L (w/dual 32bit busses), 
> eSATA, 3 USB3.0 ports, integrated HDMI (1920x1080@60), separate LCD 
> port, video In port, 4GB eMMC, uSD, Analog audio in/out, dual 1G 
> Ethernet.
> 
> For more information, refer to:
> BeagleBoard-X15 Wiki:
> http://www.elinux.org/Beagleboard:BeagleBoard-X15

That page is very empty... is it the correct URL?

Regards,
Andreas

--
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 21284 AG Nürnberg

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Re: [PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

[Tom Rini]

On 11/07/2014 12:47 PM, Nishanth Menon wrote:
> BeagleBoard-X15 is the next generation Open Source Hardware
> BeagleBoard based on TI's AM5728 SoC featuring dual core 1.5GHz A15
> processor. The platform features 2GB DDR3L (w/dual 32bit busses),
> eSATA, 3 USB3.0 ports, integrated HDMI (1920x1080@60), separate LCD
> port, video In port, 4GB eMMC, uSD, Analog audio in/out, dual 1G
> Ethernet.
> 
> For more information, refer to:
> BeagleBoard-X15 Wiki:
> http://www.elinux.org/Beagleboard:BeagleBoard-X15
> 
> AM5728 is part of the Sitara product family whose additional details
> will be available: http://www.ti.com/lsds/ti/arm/overview.page
> 
> Technical Reference Manual for AM5728 is public domain at:
> http://www.ti.com/lit/spruhz6
> 
> Just add basic support for the moment, the following updates are needed:
>   i)	Ethernet - depends on SoC dts fixes
>   ii)	USB Client (USB2) - depends on GPIO extcon
>   ii)	HDMI - additional driver fixes pending
>   iii)	Audio - additional driver fixes pending
> 
> NOTE:
> AM5728 Data Manual (SPRS915L - August 2014) section 4.1.1 states: "All
> unused power supply balls must be supplied with the voltages specified
> in the Section 5.2, Recommended Operating Conditions". This implies
> that all unused voltage rails for AM5728 can never be switched off even
> if the hardware blocks inside that voltage domain is unused. Switching
> off these unused rails may result in stability issues on other domains
> and increased leakage and power-on-hour impacts.
> 
> Signed-off-by: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>

Reviewed-by: Tom Rini <trini-l0cyMroinI0@public.gmane.org>


-- 
Tom

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Re: [PATCH POST V2] ARM: dts: Add am57xx-beagle-x15

[Tony Lindgren]

* Tom Rini <trini-l0cyMroinI0@public.gmane.org> [141107 10:38]:
> On 11/07/2014 12:47 PM, Nishanth Menon wrote:
> > BeagleBoard-X15 is the next generation Open Source Hardware
> > BeagleBoard based on TI's AM5728 SoC featuring dual core 1.5GHz A15
> > processor. The platform features 2GB DDR3L (w/dual 32bit busses),
> > eSATA, 3 USB3.0 ports, integrated HDMI (1920x1080@60), separate LCD
> > port, video In port, 4GB eMMC, uSD, Analog audio in/out, dual 1G
> > Ethernet.
> > 
> > For more information, refer to:
> > BeagleBoard-X15 Wiki:
> > http://www.elinux.org/Beagleboard:BeagleBoard-X15
> > 
> > AM5728 is part of the Sitara product family whose additional details
> > will be available: http://www.ti.com/lsds/ti/arm/overview.page
> > 
> > Technical Reference Manual for AM5728 is public domain at:
> > http://www.ti.com/lit/spruhz6
> > 
> > Just add basic support for the moment, the following updates are needed:
> >   i)	Ethernet - depends on SoC dts fixes
> >   ii)	USB Client (USB2) - depends on GPIO extcon
> >   ii)	HDMI - additional driver fixes pending
> >   iii)	Audio - additional driver fixes pending
> > 
> > NOTE:
> > AM5728 Data Manual (SPRS915L - August 2014) section 4.1.1 states: "All
> > unused power supply balls must be supplied with the voltages specified
> > in the Section 5.2, Recommended Operating Conditions". This implies
> > that all unused voltage rails for AM5728 can never be switched off even
> > if the hardware blocks inside that voltage domain is unused. Switching
> > off these unused rails may result in stability issues on other domains
> > and increased leakage and power-on-hour impacts.
> > 
> > Signed-off-by: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> > Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
> 
> Reviewed-by: Tom Rini <trini-l0cyMroinI0@public.gmane.org>

Applying into omap-for-v3.19/dt thanks.

Tony

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