[PATCH 0/2] ARM: dts: Introduce support for rev BeagleBoard-X15 B1

[PATCH 0/2] ARM: dts: Introduce support for rev BeagleBoard-X15 B1

[Nishanth Menon]

Hi,

Please find the series to cleanup and support Production version of
Beagleboard-X15 rev B1 support.

More  details can be found at https://github.com/beagleboard/beagleboard-x15

Bootlog on B1: http://pastebin.ubuntu.com/23123408/ (sd and hdmi hpd tested)

Nishanth Menon (2):
  ARM: dts: am57xx-beagle-x15: Remove pinmux configurations
  ARM: dts: am57xx-beagle-x15: Add support for rev B1

 arch/arm/boot/dts/Makefile                         |   1 +
 ...eagle-x15.dts => am57xx-beagle-x15-common.dtsi} | 230 +-----
 arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts      |  24 +
 arch/arm/boot/dts/am57xx-beagle-x15.dts            | 812 +--------------------
 4 files changed, 34 insertions(+), 1033 deletions(-)
 copy arch/arm/boot/dts/{am57xx-beagle-x15.dts => am57xx-beagle-x15-common.dtsi} (60%)
 create mode 100644 arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts

-- 
2.9.1.200.gb1ec08f

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[PATCH 1/2] ARM: dts: am57xx-beagle-x15: Remove pinmux configurations

[Nishanth Menon]

pinmuxing for DRA7x/AM57x family of processors need to be done in IO
isolation as part of initial bootloader executed from SRAM. This is
done as part of iodelay configuration sequence and is required due to
the limitations introduced by erratum ID: i869[1] and elaborated in
the Technical Reference Manual[2] 18.4.6.1.7 Isolation Requirements.

Only peripheral that is permitted for dynamic pin mux configuration is
MMC. This is to accommodate the requirements for varied speeds (which
require IO-delay support in kernel as well). Hence with the exception
of MMC, all other pin mux configurations are removed from the dts.

[1] http://www.ti.com/lit/pdf/sprz429
[2] http://www.ti.com/lit/pdf/sprui30

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/boot/dts/am57xx-beagle-x15.dts | 222 +-------------------------------
 1 file changed, 1 insertion(+), 221 deletions(-)

diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 9067ca092dc5..ef21da558ea3 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -59,8 +59,6 @@
 
 	leds {
 		compatible = "gpio-leds";
-		pinctrl-names = "default";
-		pinctrl-0 = <&leds_pins_default>;
 
 		led0 {
 			label = "beagle-x15:usr0";
@@ -116,9 +114,6 @@
 	tpd12s015: encoder {
 		compatible = "ti,tpd12s015";
 
-		pinctrl-names = "default";
-		pinctrl-0 = <&tpd12s015_pins>;
-
 		gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
 			<&gpio6 28 GPIO_ACTIVE_HIGH>,	/* gpio6_28, LS OE */
 			<&gpio7 12 GPIO_ACTIVE_HIGH>;	/* gpio7_12/sp1_cs2, HPD */
@@ -173,43 +168,6 @@
 };
 
 &dra7_pmx_core {
-	leds_pins_default: leds_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x37a8, PIN_OUTPUT | MUX_MODE14)	/* spi1_d1.gpio7_8 */
-			DRA7XX_CORE_IOPAD(0x37ac, PIN_OUTPUT | MUX_MODE14)	/* spi1_d0.gpio7_9 */
-			DRA7XX_CORE_IOPAD(0x37c0, PIN_OUTPUT | MUX_MODE14)	/* spi2_sclk.gpio7_14 */
-			DRA7XX_CORE_IOPAD(0x37c4, PIN_OUTPUT | MUX_MODE14)	/* spi2_d1.gpio7_15 */
-		>;
-	};
-
-	i2c1_pins_default: i2c1_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3800, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_sda.sda */
-			DRA7XX_CORE_IOPAD(0x3804, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_scl.scl */
-		>;
-	};
-
-	hdmi_pins: pinmux_hdmi_pins {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3808, PIN_INPUT | MUX_MODE1)	/* i2c2_sda.hdmi1_ddc_scl */
-			DRA7XX_CORE_IOPAD(0x380c, PIN_INPUT | MUX_MODE1)	/* i2c2_scl.hdmi1_ddc_sda */
-		>;
-	};
-
-	i2c3_pins_default: i2c3_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x36a4, PIN_INPUT| MUX_MODE10)	/* mcasp1_aclkx.i2c3_sda */
-			DRA7XX_CORE_IOPAD(0x36a8, PIN_INPUT| MUX_MODE10)	/* mcasp1_fsx.i2c3_scl */
-		>;
-	};
-
-	uart3_pins_default: uart3_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x37f8, PIN_INPUT_SLEW | MUX_MODE2) /* uart2_ctsn.uart3_rxd */
-			DRA7XX_CORE_IOPAD(0x37fc, PIN_INPUT_SLEW | MUX_MODE1) /* uart2_rtsn.uart3_txd */
-		>;
-	};
-
 	mmc1_pins_default: mmc1_pins_default {
 		pinctrl-single,pins = <
 			DRA7XX_CORE_IOPAD(0x376c, PIN_INPUT | MUX_MODE14)	/* mmc1sdcd.gpio219 */
@@ -236,154 +194,9 @@
 			DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
 		>;
 	};
-
-	cpsw_pins_default: cpsw_pins_default {
-		pinctrl-single,pins = <
-			/* Slave 1 */
-			DRA7XX_CORE_IOPAD(0x3650, PIN_OUTPUT | MUX_MODE0)	/* rgmii1_tclk */
-			DRA7XX_CORE_IOPAD(0x3654, PIN_OUTPUT | MUX_MODE0)	/* rgmii1_tctl */
-			DRA7XX_CORE_IOPAD(0x3658, PIN_OUTPUT | MUX_MODE0)	/* rgmii1_td3 */
-			DRA7XX_CORE_IOPAD(0x365c, PIN_OUTPUT | MUX_MODE0)	/* rgmii1_td2 */
-			DRA7XX_CORE_IOPAD(0x3660, PIN_OUTPUT | MUX_MODE0)	/* rgmii1_td1 */
-			DRA7XX_CORE_IOPAD(0x3664, PIN_OUTPUT | MUX_MODE0)	/* rgmii1_td0 */
-			DRA7XX_CORE_IOPAD(0x3668, PIN_INPUT | MUX_MODE0)	/* rgmii1_rclk */
-			DRA7XX_CORE_IOPAD(0x366c, PIN_INPUT | MUX_MODE0)	/* rgmii1_rctl */
-			DRA7XX_CORE_IOPAD(0x3670, PIN_INPUT | MUX_MODE0)	/* rgmii1_rd3 */
-			DRA7XX_CORE_IOPAD(0x3674, PIN_INPUT | MUX_MODE0)	/* rgmii1_rd2 */
-			DRA7XX_CORE_IOPAD(0x3678, PIN_INPUT | MUX_MODE0)	/* rgmii1_rd1 */
-			DRA7XX_CORE_IOPAD(0x367c, PIN_INPUT | MUX_MODE0)	/* rgmii1_rd0 */
-
-			/* Slave 2 */
-			DRA7XX_CORE_IOPAD(0x3598, PIN_OUTPUT | MUX_MODE3)	/* rgmii2_tclk */
-			DRA7XX_CORE_IOPAD(0x359c, PIN_OUTPUT | MUX_MODE3)	/* rgmii2_tctl */
-			DRA7XX_CORE_IOPAD(0x35a0, PIN_OUTPUT | MUX_MODE3)	/* rgmii2_td3 */
-			DRA7XX_CORE_IOPAD(0x35a4, PIN_OUTPUT | MUX_MODE3)	/* rgmii2_td2 */
-			DRA7XX_CORE_IOPAD(0x35a8, PIN_OUTPUT | MUX_MODE3)	/* rgmii2_td1 */
-			DRA7XX_CORE_IOPAD(0x35ac, PIN_OUTPUT | MUX_MODE3)	/* rgmii2_td0 */
-			DRA7XX_CORE_IOPAD(0x35b0, PIN_INPUT | MUX_MODE3)	/* rgmii2_rclk */
-			DRA7XX_CORE_IOPAD(0x35b4, PIN_INPUT | MUX_MODE3)	/* rgmii2_rctl */
-			DRA7XX_CORE_IOPAD(0x35b8, PIN_INPUT | MUX_MODE3)	/* rgmii2_rd3 */
-			DRA7XX_CORE_IOPAD(0x35bc, PIN_INPUT | MUX_MODE3)	/* rgmii2_rd2 */
-			DRA7XX_CORE_IOPAD(0x35c0, PIN_INPUT | MUX_MODE3)	/* rgmii2_rd1 */
-			DRA7XX_CORE_IOPAD(0x35c4, PIN_INPUT | MUX_MODE3)	/* rgmii2_rd0 */
-		>;
-
-	};
-
-	cpsw_pins_sleep: cpsw_pins_sleep {
-		pinctrl-single,pins = <
-			/* Slave 1 */
-			DRA7XX_CORE_IOPAD(0x3650, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3654, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3658, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x365c, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3660, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3664, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3668, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x366c, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3670, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3674, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3678, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x367c, PIN_INPUT | MUX_MODE15)
-
-			/* Slave 2 */
-			DRA7XX_CORE_IOPAD(0x3598, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x359c, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35a0, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35a4, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35a8, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35ac, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35b0, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35b4, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35b8, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35bc, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35c0, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x35c4, PIN_INPUT | MUX_MODE15)
-		>;
-	};
-
-	davinci_mdio_pins_default: davinci_mdio_pins_default {
-		pinctrl-single,pins = <
-			/* MDIO */
-			DRA7XX_CORE_IOPAD(0x363c, PIN_OUTPUT_PULLUP | MUX_MODE0)	/* mdio_mclk */
-			DRA7XX_CORE_IOPAD(0x3640, PIN_INPUT_PULLUP | MUX_MODE0)	/* mdio_d */
-		>;
-	};
-
-	davinci_mdio_pins_sleep: davinci_mdio_pins_sleep {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x363c, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3640, PIN_INPUT | MUX_MODE15)
-		>;
-	};
-
-	tps659038_pins_default: tps659038_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3818, PIN_INPUT_PULLUP | MUX_MODE14)	/* wakeup0.gpio1_0 */
-		>;
-	};
-
-	tmp102_pins_default: tmp102_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x37c8, PIN_INPUT_PULLUP | MUX_MODE14)	/* spi2_d0.gpio7_16 */
-		>;
-	};
-
-	mcp79410_pins_default: mcp79410_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3824, PIN_INPUT_PULLUP | MUX_MODE1)	/* wakeup3.sys_nirq1 */
-		>;
-	};
-
-	usb1_pins: pinmux_usb1_pins {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3680, PIN_INPUT_SLEW | MUX_MODE0) /* usb1_drvvbus */
-		>;
-	};
-
-	tpd12s015_pins: pinmux_tpd12s015_pins {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x37b0, PIN_OUTPUT | MUX_MODE14)		/* gpio7_10 CT_CP_HPD */
-			DRA7XX_CORE_IOPAD(0x37b8, PIN_INPUT_PULLDOWN | MUX_MODE14)	/* gpio7_12 HPD */
-			DRA7XX_CORE_IOPAD(0x3770, PIN_OUTPUT | MUX_MODE14)		/* gpio6_28 LS_OE */
-		>;
-	};
-
-	clkout2_pins_default: clkout2_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3694, PIN_OUTPUT_PULLDOWN | MUX_MODE9)	/* xref_clk0.clkout2 */
-		>;
-	};
-
-	clkout2_pins_sleep: clkout2_pins_sleep {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3694, PIN_INPUT | MUX_MODE15)	/* xref_clk0.clkout2 */
-		>;
-	};
-
-	mcasp3_pins_default: mcasp3_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3724, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp3_aclkx.mcasp3_aclkx */
-			DRA7XX_CORE_IOPAD(0x3728, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp3_fsx.mcasp3_fsx */
-			DRA7XX_CORE_IOPAD(0x372c, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp3_axr0.mcasp3_axr0 */
-			DRA7XX_CORE_IOPAD(0x3730, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp3_axr1.mcasp3_axr1 */
-		>;
-	};
-
-	mcasp3_pins_sleep: mcasp3_pins_sleep {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x3724, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3728, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x372c, PIN_INPUT | MUX_MODE15)
-			DRA7XX_CORE_IOPAD(0x3730, PIN_INPUT | MUX_MODE15)
-		>;
-	};
 };
-
 &i2c1 {
 	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c1_pins_default>;
 	clock-frequency = <400000>;
 
 	tps659038: tps659038@58 {
@@ -392,9 +205,6 @@
 		interrupt-parent = <&gpio1>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 
-		pinctrl-names = "default";
-		pinctrl-0 = <&tps659038_pins_default>;
-
 		#interrupt-cells = <2>;
 		interrupt-controller;
 
@@ -556,8 +366,6 @@
 	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>;
 		#thermal-sensor-cells = <1>;
@@ -567,9 +375,6 @@
 		#sound-dai-cells = <0>;
 		compatible = "ti,tlv320aic3104";
 		reg = <0x18>;
-		pinctrl-names = "default", "sleep";
-		pinctrl-0 = <&clkout2_pins_default>;
-		pinctrl-1 = <&clkout2_pins_sleep>;
 		assigned-clocks = <&clkoutmux2_clk_mux>;
 		assigned-clock-parents = <&sys_clk2_dclk_div>;
 
@@ -590,8 +395,6 @@
 
 &i2c3 {
 	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c3_pins_default>;
 	clock-frequency = <400000>;
 
 	mcp_rtc: rtc@6f {
@@ -601,9 +404,6 @@
 				      <&dra7_pmx_core 0x424>;
 		interrupt-names = "irq", "wakeup";
 
-		pinctrl-names = "default";
-		pinctrl-0 = <&mcp79410_pins_default>;
-
 		vcc-supply = <&vdd_3v3>;
 		wakeup-source;
 	};
@@ -623,16 +423,10 @@
 	status = "okay";
 	interrupts-extended = <&crossbar_mpu GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
 			      <&dra7_pmx_core 0x3f8>;
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart3_pins_default>;
 };
 
 &mac {
 	status = "okay";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&cpsw_pins_default>;
-	pinctrl-1 = <&cpsw_pins_sleep>;
 	dual_emac;
 };
 
@@ -648,12 +442,6 @@
 	dual_emac_res_vlan = <2>;
 };
 
-&davinci_mdio {
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&davinci_mdio_pins_default>;
-	pinctrl-1 = <&davinci_mdio_pins_sleep>;
-};
-
 &mmc1 {
 	status = "okay";
 
@@ -669,7 +457,7 @@
 	status = "okay";
 
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc2_pins_default>;
+	pinctrl-0 = <&mmc1_pins_default>;
 
 	vmmc-supply = <&vdd_3v3>;
 	bus-width = <8>;
@@ -691,8 +479,6 @@
 
 &usb1 {
 	dr_mode = "host";
-	pinctrl-names = "default";
-	pinctrl-0 = <&usb1_pins>;
 };
 
 &omap_dwc3_2 {
@@ -768,9 +554,6 @@
 	status = "ok";
 	vdda-supply = <&ldo4_reg>;
 
-	pinctrl-names = "default";
-	pinctrl-0 = <&hdmi_pins>;
-
 	port {
 		hdmi_out: endpoint {
 			remote-endpoint = <&tpd12s015_in>;
@@ -784,9 +567,6 @@
 
 &mcasp3 {
 	#sound-dai-cells = <0>;
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&mcasp3_pins_default>;
-	pinctrl-1 = <&mcasp3_pins_sleep>;
 	assigned-clocks = <&mcasp3_ahclkx_mux>;
 	assigned-clock-parents = <&sys_clkin2>;
 	status = "okay";
-- 
2.9.1.200.gb1ec08f

Re: [PATCH 1/2] ARM: dts: am57xx-beagle-x15: Remove pinmux configurations

[Sekhar Nori]

On Friday 02 September 2016 02:35 PM, Nishanth Menon wrote:
> pinmuxing for DRA7x/AM57x family of processors need to be done in IO
> isolation as part of initial bootloader executed from SRAM. This is
> done as part of iodelay configuration sequence and is required due to
> the limitations introduced by erratum ID: i869[1] and elaborated in
> the Technical Reference Manual[2] 18.4.6.1.7 Isolation Requirements.
> 
> Only peripheral that is permitted for dynamic pin mux configuration is
> MMC. This is to accommodate the requirements for varied speeds (which

Actually its MMC and DCAN. DCAN because of i893 ("DCAN Initialization
Sequence"). But I can see you may have omitted reference to it since
DCAN is not really used on the x15.

Thanks,
Sekhar

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Re: [PATCH 1/2] ARM: dts: am57xx-beagle-x15: Remove pinmux configurations

[Nishanth Menon]

On 09/02/2016 05:18 AM, Sekhar Nori wrote:
> On Friday 02 September 2016 02:35 PM, Nishanth Menon wrote:
>> pinmuxing for DRA7x/AM57x family of processors need to be done in IO
>> isolation as part of initial bootloader executed from SRAM. This is
>> done as part of iodelay configuration sequence and is required due to
>> the limitations introduced by erratum ID: i869[1] and elaborated in
>> the Technical Reference Manual[2] 18.4.6.1.7 Isolation Requirements.
>>
>> Only peripheral that is permitted for dynamic pin mux configuration is
>> MMC. This is to accommodate the requirements for varied speeds (which
>
> Actually its MMC and DCAN. DCAN because of i893 ("DCAN Initialization
> Sequence"). But I can see you may have omitted reference to it since
> DCAN is not really used on the x15.

True, I should add that for completeness. will do. thanks for catching 
the same.


-- 
Regards,
Nishanth Menon

[PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Nishanth Menon]

Latest update to the BeagleBoard-X15 platform (revision B1)[1] updates
for allowing UHS SD cards to function with the split of supply to SD
card from a dedicated LDO.

As a result of this, AM57xx BeagleBoard-X15 now uses gpio2_30 instead
of gpio6_28 for HDMI because HDMI_LS_OE should now be switched from
GPIO6_28(Y9) to GPIO2_30 (AG8) to avoid a 1.8V GPIO toggling a 3.3V
SoC input when the SD card is in UHS 1.8V mode.

NOTE: For UHS mode to function, we need full fledged IODelay support
in kernel to be functional. IODelay support is yet to be added.

Further, It does not make much sense to spin off a new board
compatible flag since there is no real functional benefit for the
same.

Note: Even though production version is supposed to be B1, there is
over ~200 boards of previous version (A2)[2] out there which continue
to get supported with the existing dts file and the production board
is now supported as revb1

[1] https://github.com/beagleboard/beagleboard-x15/blob/master/BEAGLEBOARD_X15_REV_B1.pdf
[2] http://marc.info/?l=linux-arm-kernel&m=147273929820708&w=2

Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
---

NOTE: even though I have used -C -M option with git-format-patch, the
diff for x15.dts might look a little weird. we could alternatively
split the patch into two by creating a common dtsi and then
introducing revb1 -> but, at least for the moment, I felt it to be an
overkill.

Also, please note that even though revb1 is the production platform,
there are sufficient quantities of x15 A2s (pre-prod) in the wild
currently to leave existing dts in sync with A2 and introduce b1 as a
seperate dts (instead of the other way around).

 arch/arm/boot/dts/Makefile                         |   1 +
 ...eagle-x15.dts => am57xx-beagle-x15-common.dtsi} |   8 +-
 arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts      |  24 +
 arch/arm/boot/dts/am57xx-beagle-x15.dts            | 592 +--------------------
 4 files changed, 33 insertions(+), 592 deletions(-)
 copy arch/arm/boot/dts/{am57xx-beagle-x15.dts => am57xx-beagle-x15-common.dtsi} (97%)
 create mode 100644 arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index faacd52370d2..b8d9840895c2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -570,6 +570,7 @@ dtb-$(CONFIG_SOC_OMAP5) += \
 	omap5-uevm.dtb
 dtb-$(CONFIG_SOC_DRA7XX) += \
 	am57xx-beagle-x15.dtb \
+	am57xx-beagle-x15-revb1.dtb \
 	am57xx-cl-som-am57x.dtb \
 	am57xx-sbc-am57x.dtb \
 	am572x-idk.dtb \
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
similarity index 97%
copy from arch/arm/boot/dts/am57xx-beagle-x15.dts
copy to arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
index ef21da558ea3..ec85ff9004e8 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2014-2016 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
@@ -13,7 +13,6 @@
 #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 {
@@ -114,10 +113,6 @@
 	tpd12s015: encoder {
 		compatible = "ti,tpd12s015";
 
-		gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
-			<&gpio6 28 GPIO_ACTIVE_HIGH>,	/* gpio6_28, LS OE */
-			<&gpio7 12 GPIO_ACTIVE_HIGH>;	/* gpio7_12/sp1_cs2, HPD */
-
 		ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -448,7 +443,6 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins_default>;
 
-	vmmc-supply = <&ldo1_reg>;
 	bus-width = <4>;
 	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
 };
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
new file mode 100644
index 000000000000..da61dbba7768
--- /dev/null
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2014-2016 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.
+ */
+
+#include "am57xx-beagle-x15-common.dtsi"
+
+/ {
+	model = "TI AM5728 BeagleBoard-X15 rev B1";
+};
+
+&tpd12s015 {
+	gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
+		<&gpio2 30 GPIO_ACTIVE_HIGH>,	/* gpio6_30, LS OE */
+		<&gpio7 12 GPIO_ACTIVE_HIGH>;	/* gpio7_12/sp1_cs2, HPD */
+};
+
+&mmc1 {
+	vmmc-supply = <&vdd_3v3>;
+	vmmc-aux-supply = <&ldo1_reg>;
+};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index ef21da558ea3..b47ac4bbfde6 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -1,602 +1,24 @@
 /*
- * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2014-2016 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 "am57xx-commercial-grade.dtsi"
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/interrupt-controller/irq.h>
+#include "am57xx-beagle-x15-common.dtsi"
 
 / {
 	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;
-		rtc2 = &rtc;
-		display0 = &hdmi0;
-	};
-
-	memory@0 {
-		device_type = "memory";
-		reg = <0x0 0x80000000 0x0 0x80000000>;
-	};
-
-	vdd_3v3: fixedregulator-vdd_3v3 {
-		compatible = "regulator-fixed";
-		regulator-name = "vdd_3v3";
-		vin-supply = <&regen1>;
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-	};
-
-	aic_dvdd: fixedregulator-aic_dvdd {
-		compatible = "regulator-fixed";
-		regulator-name = "aic_dvdd_fixed";
-		vin-supply = <&vdd_3v3>;
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
-	};
-
-	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";
-
-		led0 {
-			label = "beagle-x15:usr0";
-			gpios = <&gpio7 9 GPIO_ACTIVE_HIGH>;
-			linux,default-trigger = "heartbeat";
-			default-state = "off";
-		};
-
-		led1 {
-			label = "beagle-x15:usr1";
-			gpios = <&gpio7 8 GPIO_ACTIVE_HIGH>;
-			linux,default-trigger = "cpu0";
-			default-state = "off";
-		};
-
-		led2 {
-			label = "beagle-x15:usr2";
-			gpios = <&gpio7 14 GPIO_ACTIVE_HIGH>;
-			linux,default-trigger = "mmc0";
-			default-state = "off";
-		};
-
-		led3 {
-			label = "beagle-x15:usr3";
-			gpios = <&gpio7 15 GPIO_ACTIVE_HIGH>;
-			linux,default-trigger = "disk-activity";
-			default-state = "off";
-		};
-	};
-
-	gpio_fan: gpio_fan {
-		/* Based on 5v 500mA AFB02505HHB */
-		compatible = "gpio-fan";
-		gpios =  <&tps659038_gpio 2 GPIO_ACTIVE_HIGH>;
-		gpio-fan,speed-map = <0     0>,
-				     <13000 1>;
-		#cooling-cells = <2>;
-	};
-
-	hdmi0: connector {
-		compatible = "hdmi-connector";
-		label = "hdmi";
-
-		type = "a";
-
-		port {
-			hdmi_connector_in: endpoint {
-				remote-endpoint = <&tpd12s015_out>;
-			};
-		};
-	};
-
-	tpd12s015: encoder {
-		compatible = "ti,tpd12s015";
-
-		gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
-			<&gpio6 28 GPIO_ACTIVE_HIGH>,	/* gpio6_28, LS OE */
-			<&gpio7 12 GPIO_ACTIVE_HIGH>;	/* gpio7_12/sp1_cs2, HPD */
-
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			port@0 {
-				reg = <0>;
-
-				tpd12s015_in: endpoint {
-					remote-endpoint = <&hdmi_out>;
-				};
-			};
-
-			port@1 {
-				reg = <1>;
-
-				tpd12s015_out: endpoint {
-					remote-endpoint = <&hdmi_connector_in>;
-				};
-			};
-		};
-	};
-
-	sound0: sound0 {
-		compatible = "simple-audio-card";
-		simple-audio-card,name = "BeagleBoard-X15";
-		simple-audio-card,widgets =
-			"Line", "Line Out",
-			"Line", "Line In";
-		simple-audio-card,routing =
-			"Line Out",	"LLOUT",
-			"Line Out",	"RLOUT",
-			"MIC2L",	"Line In",
-			"MIC2R",	"Line In";
-		simple-audio-card,format = "dsp_b";
-		simple-audio-card,bitclock-master = <&sound0_master>;
-		simple-audio-card,frame-master = <&sound0_master>;
-		simple-audio-card,bitclock-inversion;
-
-		simple-audio-card,cpu {
-			sound-dai = <&mcasp3>;
-		};
-
-		sound0_master: simple-audio-card,codec {
-			sound-dai = <&tlv320aic3104>;
-			clocks = <&clkout2_clk>;
-		};
-	};
-};
-
-&dra7_pmx_core {
-	mmc1_pins_default: mmc1_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x376c, PIN_INPUT | MUX_MODE14)	/* mmc1sdcd.gpio219 */
-			DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
-			DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
-			DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
-			DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
-			DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
-			DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
-		>;
-	};
-
-	mmc2_pins_default: mmc2_pins_default {
-		pinctrl-single,pins = <
-			DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
-			DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
-			DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
-			DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
-			DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
-			DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
-			DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
-			DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
-			DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
-			DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
-		>;
-	};
-};
-&i2c1 {
-	status = "okay";
-	clock-frequency = <400000>;
-
-	tps659038: tps659038@58 {
-		compatible = "ti,tps659038";
-		reg = <0x58>;
-		interrupt-parent = <&gpio1>;
-		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
-
-		#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 = <1250000>;
-					regulator-always-on;
-					regulator-boot-on;
-				};
-
-				smps6_reg: smps6 {
-					/* VDD_CORE */
-					regulator-name = "smps6";
-					regulator-min-microvolt = <850000>;
-					regulator-max-microvolt = <1150000>;
-					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 / VDDSHV8  */
-					regulator-name = "ldo1";
-					regulator-min-microvolt = <1800000>;
-					regulator-max-microvolt = <3300000>;
-					regulator-boot-on;
-					regulator-always-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_PHYA */
-					regulator-name = "ldo3";
-					regulator-min-microvolt = <1800000>;
-					regulator-max-microvolt = <1800000>;
-					regulator-always-on;
-					regulator-boot-on;
-				};
-
-				ldo4_reg: ldo4 {
-					/* VDDA_1V8_PHYB */
-					regulator-name = "ldo4";
-					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>;
-		};
-
-		tps659038_gpio: tps659038_gpio {
-			compatible = "ti,palmas-gpio";
-			gpio-controller;
-			#gpio-cells = <2>;
-		};
-
-		extcon_usb2: tps659038_usb {
-			compatible = "ti,palmas-usb-vid";
-			ti,enable-vbus-detection;
-			vbus-gpio = <&gpio4 21 GPIO_ACTIVE_HIGH>;
-		};
-
-	};
-
-	tmp102: tmp102@48 {
-		compatible = "ti,tmp102";
-		reg = <0x48>;
-		interrupt-parent = <&gpio7>;
-		interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
-		#thermal-sensor-cells = <1>;
-	};
-
-	tlv320aic3104: tlv320aic3104@18 {
-		#sound-dai-cells = <0>;
-		compatible = "ti,tlv320aic3104";
-		reg = <0x18>;
-		assigned-clocks = <&clkoutmux2_clk_mux>;
-		assigned-clock-parents = <&sys_clk2_dclk_div>;
-
-		status = "okay";
-		adc-settle-ms = <40>;
-
-		AVDD-supply = <&vdd_3v3>;
-		IOVDD-supply = <&vdd_3v3>;
-		DRVDD-supply = <&vdd_3v3>;
-		DVDD-supply = <&aic_dvdd>;
-	};
-
-	eeprom: eeprom@50 {
-		compatible = "at,24c32";
-		reg = <0x50>;
-	};
 };
 
-&i2c3 {
-	status = "okay";
-	clock-frequency = <400000>;
-
-	mcp_rtc: rtc@6f {
-		compatible = "microchip,mcp7941x";
-		reg = <0x6f>;
-		interrupts-extended = <&crossbar_mpu GIC_SPI 2 IRQ_TYPE_EDGE_RISING>,
-				      <&dra7_pmx_core 0x424>;
-		interrupt-names = "irq", "wakeup";
-
-		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 = <&crossbar_mpu GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
-			      <&dra7_pmx_core 0x3f8>;
-};
-
-&mac {
-	status = "okay";
-	dual_emac;
-};
-
-&cpsw_emac0 {
-	phy_id = <&davinci_mdio>, <1>;
-	phy-mode = "rgmii";
-	dual_emac_res_vlan = <1>;
-};
-
-&cpsw_emac1 {
-	phy_id = <&davinci_mdio>, <2>;
-	phy-mode = "rgmii";
-	dual_emac_res_vlan = <2>;
+&tpd12s015 {
+	gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
+		<&gpio6 28 GPIO_ACTIVE_HIGH>,	/* gpio6_28, LS OE */
+		<&gpio7 12 GPIO_ACTIVE_HIGH>;	/* gpio7_12/sp1_cs2, HPD */
 };
 
 &mmc1 {
-	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&mmc1_pins_default>;
-
-	vmmc-supply = <&ldo1_reg>;
-	bus-width = <4>;
-	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
-};
-
-&mmc2 {
-	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&mmc1_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>;
-};
-
-&usb2_phy2 {
-	phy-supply = <&ldousb_reg>;
-};
-
-&usb1 {
-	dr_mode = "host";
-};
-
-&omap_dwc3_2 {
-	extcon = <&extcon_usb2>;
-};
-
-&usb2 {
-	/*
-	 * Stand alone usage is peripheral only.
-	 * However, with some resistor modifications
-	 * this port can be used via expansion connectors
-	 * as "host" or "dual-role". If so, provide
-	 * the necessary dr_mode override in the expansion
-	 * board's DT.
-	 */
-	dr_mode = "peripheral";
-};
-
-&cpu_trips {
-	cpu_alert1: cpu_alert1 {
-		temperature = <50000>; /* millicelsius */
-		hysteresis = <2000>; /* millicelsius */
-		type = "active";
-	};
-};
-
-&cpu_cooling_maps {
-	map1 {
-		trip = <&cpu_alert1>;
-		cooling-device = <&gpio_fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
-	};
-};
-
-&thermal_zones {
-	board_thermal: board_thermal {
-		polling-delay-passive = <1250>; /* milliseconds */
-		polling-delay = <1500>; /* milliseconds */
-
-				/* sensor       ID */
-		thermal-sensors = <&tmp102     0>;
-
-		board_trips: trips {
-			board_alert0: board_alert {
-				temperature = <40000>; /* millicelsius */
-				hysteresis = <2000>; /* millicelsius */
-				type = "active";
-			};
-
-			board_crit: board_crit {
-				temperature = <105000>; /* millicelsius */
-				hysteresis = <0>; /* millicelsius */
-				type = "critical";
-			};
-		};
-
-		board_cooling_maps: cooling-maps {
-			map0 {
-				trip = <&board_alert0>;
-				cooling-device =
-				  <&gpio_fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
-			};
-		};
-       };
-};
-
-&dss {
-	status = "ok";
-
-	vdda_video-supply = <&ldoln_reg>;
-};
-
-&hdmi {
-	status = "ok";
-	vdda-supply = <&ldo4_reg>;
-
-	port {
-		hdmi_out: endpoint {
-			remote-endpoint = <&tpd12s015_in>;
-		};
-	};
-};
-
-&pcie1 {
-	gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
-};
-
-&mcasp3 {
-	#sound-dai-cells = <0>;
-	assigned-clocks = <&mcasp3_ahclkx_mux>;
-	assigned-clock-parents = <&sys_clkin2>;
-	status = "okay";
-
-	op-mode = <0>;	/* MCASP_IIS_MODE */
-	tdm-slots = <2>;
-	/* 4 serializers */
-	serial-dir = <	/* 0: INACTIVE, 1: TX, 2: RX */
-		1 2 0 0
-	>;
-	tx-num-evt = <32>;
-	rx-num-evt = <32>;
-};
-
-&mailbox5 {
-	status = "okay";
-	mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {
-		status = "okay";
-	};
-	mbox_dsp1_ipc3x: mbox_dsp1_ipc3x {
-		status = "okay";
-	};
-};
-
-&mailbox6 {
-	status = "okay";
-	mbox_ipu2_ipc3x: mbox_ipu2_ipc3x {
-		status = "okay";
-	};
-	mbox_dsp2_ipc3x: mbox_dsp2_ipc3x {
-		status = "okay";
-	};
+	vmmc-aux-supply = <&ldo1_reg>;
 };
-- 
2.9.1.200.gb1ec08f

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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Tomi Valkeinen]

[-- Attachment #1.1: Type: text/plain, Size: 919 bytes --]

On 02/09/16 12:06, Nishanth Menon wrote:

> diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
> new file mode 100644
> index 000000000000..da61dbba7768
> --- /dev/null
> +++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
> @@ -0,0 +1,24 @@
> +/*
> + * Copyright (C) 2014-2016 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.
> + */
> +
> +#include "am57xx-beagle-x15-common.dtsi"
> +
> +/ {
> +	model = "TI AM5728 BeagleBoard-X15 rev B1";
> +};
> +
> +&tpd12s015 {
> +	gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
> +		<&gpio2 30 GPIO_ACTIVE_HIGH>,	/* gpio6_30, LS OE */

Wrong gpio in the comment.

 Tomi


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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Nishanth Menon]

On 09/02/2016 04:58 AM, Tomi Valkeinen wrote:
> On 02/09/16 12:06, Nishanth Menon wrote:
>
>> diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
>> new file mode 100644
>> index 000000000000..da61dbba7768
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
>> @@ -0,0 +1,24 @@
>> +/*
>> + * Copyright (C) 2014-2016 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.
>> + */
>> +
>> +#include "am57xx-beagle-x15-common.dtsi"
>> +
>> +/ {
>> +	model = "TI AM5728 BeagleBoard-X15 rev B1";
>> +};
>> +
>> +&tpd12s015 {
>> +	gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,	/* gpio7_10, CT CP HPD */
>> +		<&gpio2 30 GPIO_ACTIVE_HIGH>,	/* gpio6_30, LS OE */
>
> Wrong gpio in the comment.

Uggh.. thanks for catching that.. should have been gpio2_30

will repost a v2 if there are no further comments at the end of the day..


-- 
Regards,
Nishanth Menon

Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Tomi Valkeinen]

[-- Attachment #1.1: Type: text/plain, Size: 1331 bytes --]



On 02/09/16 13:01, Nishanth Menon wrote:
> On 09/02/2016 04:58 AM, Tomi Valkeinen wrote:
>> On 02/09/16 12:06, Nishanth Menon wrote:
>>
>>> diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
>>> b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
>>> new file mode 100644
>>> index 000000000000..da61dbba7768
>>> --- /dev/null
>>> +++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
>>> @@ -0,0 +1,24 @@
>>> +/*
>>> + * Copyright (C) 2014-2016 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.
>>> + */
>>> +
>>> +#include "am57xx-beagle-x15-common.dtsi"
>>> +
>>> +/ {
>>> +    model = "TI AM5728 BeagleBoard-X15 rev B1";
>>> +};
>>> +
>>> +&tpd12s015 {
>>> +    gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,    /* gpio7_10, CT CP HPD */
>>> +        <&gpio2 30 GPIO_ACTIVE_HIGH>,    /* gpio6_30, LS OE */
>>
>> Wrong gpio in the comment.
> 
> Uggh.. thanks for catching that.. should have been gpio2_30
> 
> will repost a v2 if there are no further comments at the end of the day..

Booting and HDMI works fine:

Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

 Tomi


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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Sekhar Nori]

+ Robert Nelson

On Friday 02 September 2016 02:36 PM, Nishanth Menon wrote:
> Latest update to the BeagleBoard-X15 platform (revision B1)[1] updates
> for allowing UHS SD cards to function with the split of supply to SD
> card from a dedicated LDO.
> 
> As a result of this, AM57xx BeagleBoard-X15 now uses gpio2_30 instead
> of gpio6_28 for HDMI because HDMI_LS_OE should now be switched from
> GPIO6_28(Y9) to GPIO2_30 (AG8) to avoid a 1.8V GPIO toggling a 3.3V
> SoC input when the SD card is in UHS 1.8V mode.
> 
> NOTE: For UHS mode to function, we need full fledged IODelay support
> in kernel to be functional. IODelay support is yet to be added.
> 
> Further, It does not make much sense to spin off a new board
> compatible flag since there is no real functional benefit for the
> same.
> 
> Note: Even though production version is supposed to be B1, there is
> over ~200 boards of previous version (A2)[2] out there which continue
> to get supported with the existing dts file and the production board
> is now supported as revb1
> 
> [1] https://github.com/beagleboard/beagleboard-x15/blob/master/BEAGLEBOARD_X15_REV_B1.pdf
> [2] http://marc.info/?l=linux-arm-kernel&m=147273929820708&w=2
> 
> Signed-off-by: Nishanth Menon <nm@ti.com>
> ---
> 
> NOTE: even though I have used -C -M option with git-format-patch, the
> diff for x15.dts might look a little weird. we could alternatively
> split the patch into two by creating a common dtsi and then
> introducing revb1 -> but, at least for the moment, I felt it to be an
> overkill.
> 
> Also, please note that even though revb1 is the production platform,
> there are sufficient quantities of x15 A2s (pre-prod) in the wild
> currently to leave existing dts in sync with A2 and introduce b1 as a
> seperate dts (instead of the other way around).
> 
>  arch/arm/boot/dts/Makefile                         |   1 +
>  ...eagle-x15.dts => am57xx-beagle-x15-common.dtsi} |   8 +-
>  arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts      |  24 +
>  arch/arm/boot/dts/am57xx-beagle-x15.dts            | 592 +--------------------

I understand that there are existing users of A2 boards and so we simply
cannot remove support for those boards (at least yet).

But given the small numbers of A2 boards, its also quite likely that we
will not have enough test coverage for those boards. Especially as years
pass and there are fewer and fewer people with access to working A2 boards.

Given that, aren't we increasing the chance of A2 breakage by creating a
common file - this essentially necessitates that any change to
am57xx-beagle-x15-common.dtsi is also tested on A2.

Instead, it seems to be easier for maintenance and safer overall if the
older version has a file of its own which can be kept alone.

Also, how about renaming the existing dts to am57xx-beagle-x15-reva2.dts
and let the production version be called am57xx-beagle-x15.dts? Surely
this will cause some inconvenience to A2 users. But there are few users
of those and it might be more intuitive for the majority users if the
file for production version is without a specific version string
attached. Just a thought though, not sure about it myself either.

Regards,
Sekhar

Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Tomi Valkeinen]

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On 02/09/16 13:41, Sekhar Nori wrote:

> Also, how about renaming the existing dts to am57xx-beagle-x15-reva2.dts
> and let the production version be called am57xx-beagle-x15.dts? Surely
> this will cause some inconvenience to A2 users. But there are few users
> of those and it might be more intuitive for the majority users if the
> file for production version is without a specific version string
> attached. Just a thought though, not sure about it myself either.

I was about to suggest the same, so yes, this sounds good to me.

 Tomi


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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Robert Nelson]

On Fri, Sep 2, 2016 at 5:41 AM, Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org> wrote:
> + Robert Nelson
>
> On Friday 02 September 2016 02:36 PM, Nishanth Menon wrote:
>
> I understand that there are existing users of A2 boards and so we simply
> cannot remove support for those boards (at least yet).
>
> But given the small numbers of A2 boards, its also quite likely that we
> will not have enough test coverage for those boards. Especially as years
> pass and there are fewer and fewer people with access to working A2 boards.

I have a A1, A2 and a B1, that i use for testing for
beagleboard.org...  The A1 use to be ssh-accessible for developers,
but since moving to my new house, I haven't "yet" got that one setup
for developers.  Right now i'm using the A2 & B1 for development of
our default images.

Jason Kridner also has a number of boards

> Given that, aren't we increasing the chance of A2 breakage by creating a
> common file - this essentially necessitates that any change to
> am57xx-beagle-x15-common.dtsi is also tested on A2.
>
> Instead, it seems to be easier for maintenance and safer overall if the
> older version has a file of its own which can be kept alone.
>
> Also, how about renaming the existing dts to am57xx-beagle-x15-reva2.dts
> and let the production version be called am57xx-beagle-x15.dts? Surely
> this will cause some inconvenience to A2 users. But there are few users
> of those and it might be more intuitive for the majority users if the
> file for production version is without a specific version string
> attached. Just a thought though, not sure about it myself either.

Nak, let's NOT do that to A2 users.

The am57xx-beagle-x15.dts went mainline in v3.19, u-boot installed on
devices would need to be updated and this would make bisecting a pain.
;)

Side note:

A1/A2 boards (most i believe) did not have the eeprom programmed with an ID.

Where as B1's have a default eeprom for identification:

https://github.com/RobertCNelson/boot-scripts/blob/master/device/x15/X15_B1-eeprom.dump

Regards,

-- 
Robert Nelson
https://rcn-ee.com/
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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Nishanth Menon]

+ x15 list ( see https://patchwork.kernel.org/patch/9310617/)
On 09/02/2016 08:52 AM, Robert Nelson wrote:
> On Fri, Sep 2, 2016 at 5:41 AM, Sekhar Nori <nsekhar@ti.com> wrote:
>> + Robert Nelson
>>
>> On Friday 02 September 2016 02:36 PM, Nishanth Menon wrote:
>>
>> I understand that there are existing users of A2 boards and so we simply
>> cannot remove support for those boards (at least yet).
>>
>> But given the small numbers of A2 boards, its also quite likely that we
>> will not have enough test coverage for those boards. Especially as years
>> pass and there are fewer and fewer people with access to working A2 boards.
>
> I have a A1, A2 and a B1, that i use for testing for
> beagleboard.org...  The A1 use to be ssh-accessible for developers,
> but since moving to my new house, I haven't "yet" got that one setup
> for developers.  Right now i'm using the A2 & B1 for development of
> our default images.
>

That said, A1 was never intended to be supported longer term - there 
were key uart changes and tons of fixes done on top of A1 - and I 
think you might be one of the last few people to use it. That said, 
there were so many "mods" of A1, that we stopped even keeping track of 
it and upstream kernel or bootloader as it exists today wont even boot 
up on the A1. nutshell: lets keep A1 away from the discussion, unless 
we have a strong case for the same.

> Jason Kridner also has a number of boards
>
>> Given that, aren't we increasing the chance of A2 breakage by creating a
>> common file - this essentially necessitates that any change to
>> am57xx-beagle-x15-common.dtsi is also tested on A2.
>>
>> Instead, it seems to be easier for maintenance and safer overall if the
>> older version has a file of its own which can be kept alone.
>>
>> Also, how about renaming the existing dts to am57xx-beagle-x15-reva2.dts
>> and let the production version be called am57xx-beagle-x15.dts? Surely
>> this will cause some inconvenience to A2 users. But there are few users
>> of those and it might be more intuitive for the majority users if the
>> file for production version is without a specific version string
>> attached. Just a thought though, not sure about it myself either.
>
> Nak, let's NOT do that to A2 users.
>
> The am57xx-beagle-x15.dts went mainline in v3.19, u-boot installed on
> devices would need to be updated and this would make bisecting a pain.
> ;)

Yep, that was my rationale of keeping x15.dts as is for A2 users.

I am going to assume that all agree to leaving x15.dts = A2 (I should 
really update the comments to indicate that in the patch for a future 
user), and x15-revb1 to be the new one.


>
> Side note:
>
> A1/A2 boards (most i believe) did not have the eeprom programmed with an ID.

My understanding was, most A2s should have the eeproms programmed esp 
the ones that are available to purchase - but then, even if NOT, the 
default u-boot behavior is to assume "when eeprom not programmed, 
think it is A2".. so we are pretty much covered both ways.

> Where as B1's have a default eeprom for identification:
>
> https://github.com/RobertCNelson/boot-scripts/blob/master/device/x15/X15_B1-eeprom.dump

Cool.. at least I now know where to find them :D

-- 
Regards,
Nishanth Menon

Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Tony Lindgren]

* Robert Nelson <robertcnelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> [160902 06:52]:
> On Fri, Sep 2, 2016 at 5:41 AM, Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org> wrote:
> > Instead, it seems to be easier for maintenance and safer overall if the
> > older version has a file of its own which can be kept alone.
> >
> > Also, how about renaming the existing dts to am57xx-beagle-x15-reva2.dts
> > and let the production version be called am57xx-beagle-x15.dts? Surely
> > this will cause some inconvenience to A2 users. But there are few users
> > of those and it might be more intuitive for the majority users if the
> > file for production version is without a specific version string
> > attached. Just a thought though, not sure about it myself either.
> 
> Nak, let's NOT do that to A2 users.
> 
> The am57xx-beagle-x15.dts went mainline in v3.19, u-boot installed on
> devices would need to be updated and this would make bisecting a pain.
> ;)

I agree, let's keep things working without forcing people to update
their u-boot enviroment for the dtb name.

Regards,

Tony
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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Sekhar Nori]

On Friday 02 September 2016 07:22 PM, Robert Nelson wrote:
> On Fri, Sep 2, 2016 at 5:41 AM, Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org> wrote:
>> + Robert Nelson
>>
>> On Friday 02 September 2016 02:36 PM, Nishanth Menon wrote:
>>
>> I understand that there are existing users of A2 boards and so we simply
>> cannot remove support for those boards (at least yet).
>>
>> But given the small numbers of A2 boards, its also quite likely that we
>> will not have enough test coverage for those boards. Especially as years
>> pass and there are fewer and fewer people with access to working A2 boards.
> 
> I have a A1, A2 and a B1, that i use for testing for
> beagleboard.org...  The A1 use to be ssh-accessible for developers,
> but since moving to my new house, I haven't "yet" got that one setup
> for developers.  Right now i'm using the A2 & B1 for development of
> our default images.
> 
> Jason Kridner also has a number of boards

Availability of hardware _somewhere_ is one aspect. I am still worried
about the big difference in scale. A2 are ~200 in number where as the
production version should be in thousands.

Reuse is meant to reduce maintenance cost. In this case though, it seems
like it will do exactly the opposite - making anyone with a production
version rely on few with a non-production version to make any updates at
all.

IMHO, a common .dtsi made sense if both the boards went to production
and are largely available.

device-tree sources continue to get updates even though hardware itself
is pretty much frozen. am335x-bone-common.dtsi created 3 years back is
receiving updates still - as recently as 3 months back. So, I do expect
that A2 will need to get tested in many years to come. Not sure if it
really worth that much effort.

Thanks,
Sekhar


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Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Tony Lindgren]

Hi,

* Sekhar Nori <nsekhar@ti.com> [160906 03:11]:
> On Friday 02 September 2016 07:22 PM, Robert Nelson wrote:
> > On Fri, Sep 2, 2016 at 5:41 AM, Sekhar Nori <nsekhar@ti.com> wrote:
> >> + Robert Nelson
> >>
> >> On Friday 02 September 2016 02:36 PM, Nishanth Menon wrote:
> >>
> >> I understand that there are existing users of A2 boards and so we simply
> >> cannot remove support for those boards (at least yet).
> >>
> >> But given the small numbers of A2 boards, its also quite likely that we
> >> will not have enough test coverage for those boards. Especially as years
> >> pass and there are fewer and fewer people with access to working A2 boards.
> > 
> > I have a A1, A2 and a B1, that i use for testing for
> > beagleboard.org...  The A1 use to be ssh-accessible for developers,
> > but since moving to my new house, I haven't "yet" got that one setup
> > for developers.  Right now i'm using the A2 & B1 for development of
> > our default images.
> > 
> > Jason Kridner also has a number of boards
> 
> Availability of hardware _somewhere_ is one aspect. I am still worried
> about the big difference in scale. A2 are ~200 in number where as the
> production version should be in thousands.
> 
> Reuse is meant to reduce maintenance cost. In this case though, it seems
> like it will do exactly the opposite - making anyone with a production
> version rely on few with a non-production version to make any updates at
> all.
> 
> IMHO, a common .dtsi made sense if both the boards went to production
> and are largely available.

Shared dtsi files are essential for us from maintenance point of view
as maintaining non-shared dtsi files is way more work and churn.

> device-tree sources continue to get updates even though hardware itself
> is pretty much frozen. am335x-bone-common.dtsi created 3 years back is
> receiving updates still - as recently as 3 months back. So, I do expect
> that A2 will need to get tested in many years to come. Not sure if it
> really worth that much effort.

And the am335x shared dtsi files are not enough. It's silly how many
times we're duplicating the same things over and over again for USB
setup for various am335x boards for example.

So my take is that we need more shared dtsi files, not less.

Regards,

Tony

Re: [PATCH 2/2] ARM: dts: am57xx-beagle-x15: Add support for rev B1

[Sekhar Nori]

On Wednesday 07 September 2016 01:35 AM, Tony Lindgren wrote:
> And the am335x shared dtsi files are not enough. It's silly how many
> times we're duplicating the same things over and over again for USB
> setup for various am335x boards for example.
> 
> So my take is that we need more shared dtsi files, not less.

Alright, thanks for weighing in, Tony.

Regards,
Sekhar
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Re: [PATCH 0/2] ARM: dts: Introduce support for rev BeagleBoard-X15 B1

[Nishanth Menon]

On 09/02/2016 04:05 AM, Nishanth Menon wrote:
>
> Hi,
>
> Please find the series to cleanup and support Production version of
> Beagleboard-X15 rev B1 support.
>
> More  details can be found at https://github.com/beagleboard/beagleboard-x15
>
> Bootlog on B1: http://pastebin.ubuntu.com/23123408/ (sd and hdmi hpd tested)
>

Forgot to add:
this series is based on:
https://git.kernel.org/cgit/linux/kernel/git/tmlind/linux-omap.git/log/?h=omap-for-v4.9/dt

Also, the upstream u-boot support can only be added once we know what 
the dt name should be - basically pending dts acceptance..

> Nishanth Menon (2):
>   ARM: dts: am57xx-beagle-x15: Remove pinmux configurations
>   ARM: dts: am57xx-beagle-x15: Add support for rev B1
>
>  arch/arm/boot/dts/Makefile                         |   1 +
>  ...eagle-x15.dts => am57xx-beagle-x15-common.dtsi} | 230 +-----
>  arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts      |  24 +
>  arch/arm/boot/dts/am57xx-beagle-x15.dts            | 812 +--------------------
>  4 files changed, 34 insertions(+), 1033 deletions(-)
>  copy arch/arm/boot/dts/{am57xx-beagle-x15.dts => am57xx-beagle-x15-common.dtsi} (60%)
>  create mode 100644 arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
>


-- 
Regards,
Nishanth Menon
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