Re: [PATCH 3/3] arm64: dts: allwinner: Add Jide Remix Mini PC support

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Dne torek, 06. februar 2024 ob 19:23:35 CET je Jernej Škrabec napisal(a):
> Dne torek, 06. februar 2024 ob 19:13:46 CET je Andre Przywara napisal(a):
> > Hi Jernej,
> > 
> > On 06/02/2024 18:32, Jernej Škrabec wrote:
> > > Dne torek, 06. februar 2024 ob 01:47:05 CET je Andre Przywara napisal(a):
> > >> Hi Jernej,
> > >>
> > >> thanks for having a look!
> > >>
> > >> On 05/02/2024 19:20, Jernej Škrabec wrote:
> > >>> Dne ponedeljek, 05. februar 2024 ob 19:12:45 CET je Jernej Škrabec napisal(a):
> > >>>> Hi Andre!
> > >>>>
> > >>>> Dne nedelja, 04. februar 2024 ob 10:44:04 CET je Andre Przywara napisal(a):
> > >>>>> The Remix Mini PC is a "mini computer" using the Allwinner H64 SoC,
> > >>>>> which appears to be just a relabelled A64. It was launched in 2015 by
> > >>>>> the now defunct company Jide, and shipped with a desktop optimised
> > >>>>> version of Android. It features
> > >>>>> 	- Allwinner H64 Soc (4 * Arm Cortex-A53 cores)
> > >>>>> 	- 1 or 2 GB DRAM
> > >>>>> 	- 8 or 16 GB eMMC flash
> > >>>>> 	- 100 MBit Ethernet port (using an X-Powers AC200 PHY)
> > >>>>> 	- RTL8723BS WiFi & Bluetooth chip
> > >>>>> 	- HDMI port
> > >>>>> 	- two USB 2.0 ports
> > >>>>> 	- 3.5mm AV port
> > >>>>> 	- microSD card slot
> > >>>>>
> > >>>>> The devicetree covers most peripherals, though there is no agreed
> > >>>>> binding for the PHY chip yet, so this is left out.
> > >>>>>
> > >>>>> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
> > >>>>> ---
> > >>>>>    arch/arm64/boot/dts/allwinner/Makefile        |   1 +
> > >>>>>    .../allwinner/sun50i-h64-remix-mini-pc.dts    | 357 ++++++++++++++++++
> > >>>>>    2 files changed, 358 insertions(+)
> > >>>>>    create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts
> > >>>>>
> > >>>>> diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
> > >>>>> index 91d505b385de..2db3b15ad09f 100644
> > >>>>> --- a/arch/arm64/boot/dts/allwinner/Makefile
> > >>>>> +++ b/arch/arm64/boot/dts/allwinner/Makefile
> > >>>>> @@ -16,6 +16,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinetab.dtb
> > >>>>>    dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinetab-early-adopter.dtb
> > >>>>>    dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-sopine-baseboard.dtb
> > >>>>>    dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-teres-i.dtb
> > >>>>> +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h64-remix-mini-pc.dtb
> > >>>>>    dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a100-allwinner-perf1.dtb
> > >>>>>    dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus.dtb
> > >>>>>    dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus-v1.2.dtb
> > >>>>> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts b/arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts
> > >>>>> new file mode 100644
> > >>>>> index 000000000000..537923a541a8
> > >>>>> --- /dev/null
> > >>>>> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts
> > >>>>> @@ -0,0 +1,357 @@
> > >>>>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > >>>>> +// Copyright (c) 2018 ARM Ltd.
> > >>>>
> > >>>> Shouldn't be 2024?
> > >>
> > >> Well, that just documents that sad fact that I indeed created this file
> > >> 6 years ago, but just managed now to actually send this. Is there a
> > >> requirement for this being "recent"?
> > > 
> > > Not really, but it's strange looking. Some might incorrectly assume that it's
> > > present in the kernel longer than it really is.
> > 
> > OK, I will put in 2023, as this is when I touched this again.
> > 
> > >>>>
> > >>>>> +
> > >>>>> +/dts-v1/;
> > >>>>> +
> > >>>>> +#include "sun50i-a64.dtsi"
> > >>>>> +#include "sun50i-a64-cpu-opp.dtsi"
> > >>>>> +
> > >>>>> +#include <dt-bindings/gpio/gpio.h>
> > >>>>> +
> > >>>>> +/ {
> > >>>>> +	model = "Remix Mini PC";
> > >>>>> +	compatible = "jide,remix-mini-pc", "allwinner,sun50i-h64",
> > >>>>> +		     "allwinner,sun50i-a64";
> > >>>>> +
> > >>>>> +	aliases {
> > >>>>> +		ethernet1 = &rtl8723bs;
> > >>>>> +		serial0 = &uart0;
> > >>>>> +	};
> > >>>>> +
> > >>>>> +	chosen {
> > >>>>> +		stdout-path = "serial0:115200n8";
> > >>>>> +	};
> > >>>>> +
> > >>>>> +	hdmi-connector {
> > >>>>> +		compatible = "hdmi-connector";
> > >>>>> +		type = "a";
> > >>>>> +
> > >>>>> +		port {
> > >>>>> +			hdmi_con_in: endpoint {
> > >>>>> +				remote-endpoint = <&hdmi_out_con>;
> > >>>>> +			};
> > >>>>> +		};
> > >>>>> +	};
> > >>>>> +
> > >>>>> +	reg_vcc5v: regulator-5v {
> > >>>>> +		/* board wide 5V supply directly from the DC input */
> > >>>>> +		compatible = "regulator-fixed";
> > >>>>> +		regulator-name = "vcc-5v";
> > >>>>> +		regulator-min-microvolt = <5000000>;
> > >>>>> +		regulator-max-microvolt = <5000000>;
> > >>>>> +		regulator-always-on;
> > >>>>> +	};
> > >>>>> +
> > >>>>> +	wifi_pwrseq: wifi_pwrseq {
> > >>>>> +		compatible = "mmc-pwrseq-simple";
> > >>>>> +		pinctrl-names = "default";
> > >>>>> +		reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> > >>>>> +		post-power-on-delay-ms = <200>;
> > >>>>> +	};
> > >>>>> +};
> > >>>>> +
> > >>>>> +&codec {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&codec_analog {
> > >>>>> +	cpvdd-supply = <&reg_eldo1>;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&cpu0 {
> > >>>>> +	cpu-supply = <&reg_dcdc2>;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&cpu1 {
> > >>>>> +	cpu-supply = <&reg_dcdc2>;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&cpu2 {
> > >>>>> +	cpu-supply = <&reg_dcdc2>;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&cpu3 {
> > >>>>> +	cpu-supply = <&reg_dcdc2>;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&dai {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&de {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&ehci0 {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&ehci1 {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&hdmi {
> > >>>>> +	hvcc-supply = <&reg_dldo1>;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&hdmi_out {
> > >>>>> +	hdmi_out_con: endpoint {
> > >>>>> +		remote-endpoint = <&hdmi_con_in>;
> > >>>>> +	};
> > >>>>> +};
> > >>>>> +
> > >>>>> +/* Connects to the AC200 chip */
> > >>>>> +&i2c0 {
> > >>>>> +	pinctrl-names = "default";
> > >>>>> +	pinctrl-0 = <&i2c0_pins>;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&i2c0_pins {
> > >>>>> +	bias-pull-up;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&mmc0 {
> > >>>>> +	pinctrl-names = "default";
> > >>>>> +	pinctrl-0 = <&mmc0_pins>;
> > >>>>> +	vmmc-supply = <&reg_dcdc1>;
> > >>>>> +	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
> > >>>>> +	disable-wp;
> > >>>>> +	bus-width = <4>;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&mmc1 {
> > >>>>> +	pinctrl-names = "default";
> > >>>>> +	pinctrl-0 = <&mmc1_pins>;
> > >>>>> +	vmmc-supply = <&reg_aldo1>;
> > >>>>> +	vqmmc-supply = <&reg_dldo4>;
> > >>>>> +	mmc-pwrseq = <&wifi_pwrseq>;
> > >>>>> +	bus-width = <4>;
> > >>>>> +	non-removable;
> > >>>>> +	status = "okay";
> > >>>>> +
> > >>>>> +	rtl8723bs: wifi@1 {
> > >>>>> +		reg = <1>;
> > >>>>> +		interrupt-parent = <&r_pio>;
> > >>>>> +		interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 */
> > >>>>> +		interrupt-names = "host-wake";
> > >>>>> +	};
> > >>>>
> > >>>> Node without compatible doesn't help. Please remove it.
> > >>
> > >> Huh, but where do I put the the IRQ line then? And every other RTL8723BS
> > >> user seems to do the same?
> > > 
> > > It's good, sorry for the noise.
> > 
> > Just for the records, and for my own reference:
> > Since there is no "ranges" property in the MMC node, the Linux platform 
> > bus driver is not automatically traversing any child nodes. So we don't 
> > need a compatible string. Instead it's a new addressing scheme (this 
> > obsolete MMC "bus" address, like SPI or I2C), so it's up to the driver 
> > to do the child iteration. And it will match device #1 to reg <1>, and 
> > use that node, as Chen-Yu mentioned.
> > 
> > >>>>
> > >>>>> +};
> > >>>>> +
> > >>>>> +&mmc2 {
> > >>>>> +	pinctrl-names = "default";
> > >>>>> +	pinctrl-0 = <&mmc2_pins>, <&mmc2_ds_pin>;
> > >>>>> +	vmmc-supply = <&reg_dcdc1>;
> > >>>>> +	vqmmc-supply = <&reg_eldo1>;
> > >>>>> +	bus-width = <8>;
> > >>>>> +	non-removable;
> > >>>>> +	mmc-ddr-1_8v;
> > >>>>> +	mmc-hs200-1_8v;
> > >>>>
> > >>>> Aren't these speed modes enabled by default?
> > >>
> > >> Enabled by who? Our current sunxi-mmc driver? I cannot find anything in
> > >> the binding that suggests that there would be some default settings.
> > > 
> > > Looking at Linux sunxi mmc driver, mmc-ddr-1_8v is enabled by default for
> > > "new timings" variants except for H5. Anyway...
> > 
> > But this is a Linux implementation detail, which we should not rely on 
> > in a DT? And if I remember Maxime correctly back then, the plan was to 
> > avoid those driver hacks and just say what we support in the DT, going 
> > forward. This might be needed for other OSes, which might not support 
> > HS-200?
> > >>> Sorry, mmc-hs200-1_8v is ok, but mmc-ddr-1_8v should be
> > >>> removed.
> > >>
> > >> Mmh, I am confused: I thought after the H5 eMMC mishap we figured that
> > >> all speed modes supported by the eMMC chip should be listed in the DT?
> > > 
> > > I think H5 just has (had?) driver issue. From what I can see, only highest
> > > supported mode by kernel and chip is specified in all Allwinner DTs.
> > > mmc-ddr-1_8v is only specified by two recent board addition, where I missed
> > > it while reviewing.
> > > 
> > >> So any driver wouldn't need to make assumptions, and if a particular
> > >> mode shows problems on a board, we just remove that mode from the DT.
> > >> Actually, thinking about that, I guess I should list HS-400 as well? The
> > >> BSP kernel uses that mode.
> > > 
> > > Sure, but it also calibrates timing for it. If you'll specify HS400, kernel
> > > will try to use it, but it won't work.
> > 
> > But this is also a limitation of the current Linux kernel driver. And 
> > since we indeed don't support HS-400, we explicitly remove it from the 
> > capability list, *after* the call to mmc_of_parse():
> > 
> > drivers/mmc/host/sunxi-mmc.c:1460
> >          /* TODO: This driver doesn't support HS400 mode yet */
> >          mmc->caps2 &= ~MMC_CAP2_HS400;
> > 
> > So I think this should be safe?
> 
> Right. Can you test it?
> 
> Best regards,
> Jernej
> 
> > 
> > Cheers,
> > Andre
> > 
> > > 
> > >> Or do you mean to say that in particular DDR (@1.8V) is problematic? I
> > >> cannot test at the moment, but could try later to force that mode.
> > > 
> > > No, no need.

If we go in new direction, then it would be good to test it.

Best regards,
Jernej

> > > 
> > > Best regards,
> > > Jernej
> > > 
> > >>
> > >> Cheers,
> > >> Andre
> > >>
> > >>
> > >>>>> +	cap-mmc-hw-reset;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&ohci0 {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&ohci1 {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&pio {
> > >>>>> +	vcc-pb-supply = <&reg_dcdc1>;
> > >>>>> +	vcc-pc-supply = <&reg_dcdc1>;
> > >>>>> +	vcc-pd-supply = <&reg_dcdc1>;
> > >>>>> +	vcc-pe-supply = <&reg_dcdc1>;
> > >>>>> +	vcc-pf-supply = <&reg_dcdc1>;
> > >>>>> +	vcc-pg-supply = <&reg_dldo4>;
> > >>>>> +	vcc-ph-supply = <&reg_dcdc1>;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&r_ir {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&r_pio {
> > >>>>> +	/*
> > >>>>> +	 * We cannot add that supply for now since it would create a circular
> > >>>>> +	 * dependency between pinctrl, the regulator and the RSB Bus.
> > >>>>> +	 *
> > >>>>> +	 * vcc-pl-supply = <&reg_aldo2>;
> > >>>>> +	 */
> > >>>>> +};
> > >>>>> +
> > >>>>> +&r_rsb {
> > >>>>> +	status = "okay";
> > >>>>> +
> > >>>>> +	axp803: pmic@3a3 {
> > >>>>> +		compatible = "x-powers,axp803";
> > >>>>> +		reg = <0x3a3>;
> > >>>>> +		interrupt-parent = <&r_intc>;
> > >>>>> +		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_LOW>;
> > >>>>> +		x-powers,drive-vbus-en;
> > >>>>> +
> > >>>>> +		vin1-supply = <&reg_vcc5v>;
> > >>>>> +		vin2-supply = <&reg_vcc5v>;
> > >>>>> +		vin3-supply = <&reg_vcc5v>;
> > >>>>> +		vin5-supply = <&reg_vcc5v>;
> > >>>>> +		vin6-supply = <&reg_vcc5v>;
> > >>>>> +		aldoin-supply = <&reg_vcc5v>;
> > >>>>> +		dldoin-supply = <&reg_vcc5v>;
> > >>>>> +		eldoin-supply = <&reg_vcc5v>;
> > >>>>> +		fldoin-supply = <&reg_vcc5v>;
> > >>>>> +		drivevbus-supply = <&reg_vcc5v>;
> > >>>>> +		ips-supply = <&reg_vcc5v>;
> > >>>>> +
> > >>>>> +		status = "okay";
> > >>>>> +	};
> > >>>>> +};
> > >>>>> +
> > >>>>> +#include "axp803.dtsi"
> > >>>>> +
> > >>>>> +&ac_power_supply {
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_dcdc1 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <3300000>;
> > >>>>> +	regulator-max-microvolt = <3300000>;
> > >>>>> +	regulator-name = "vcc-3v3";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_dcdc2 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <1040000>;
> > >>>>> +	regulator-max-microvolt = <1300000>;
> > >>>>> +	regulator-name = "vdd-cpux";
> > >>>>> +};
> > >>>>> +
> > >>>>> +/* DCDC3 is polyphased with DCDC2 */
> > >>>>> +
> > >>>>> +&reg_dcdc5 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <1500000>;
> > >>>>> +	regulator-max-microvolt = <1500000>;
> > >>>>> +	regulator-name = "vcc-dram";
> > >>>>> +};
> > >>>>> +
> > >>>>> +/* Deviates from the reset default of 1.1V. */
> > >>>>> +&reg_dcdc6 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <1200000>;
> > >>>>> +	regulator-max-microvolt = <1200000>;
> > >>>>> +	regulator-name = "vdd-sys";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_aldo1 {
> > >>>>> +	regulator-min-microvolt = <3300000>;
> > >>>>> +	regulator-max-microvolt = <3300000>;
> > >>>>> +	regulator-name = "vcc-wifi";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_aldo2 {
> > >>>>> +	/* Specifying R_PIO consumer would create circular dependency. */
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <3300000>;
> > >>>>> +	regulator-max-microvolt = <3300000>;
> > >>>>> +	regulator-name = "vcc-pl";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_aldo3 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <3000000>;
> > >>>>> +	regulator-max-microvolt = <3000000>;
> > >>>>> +	regulator-name = "vcc-pll-avcc";
> > >>>>> +};
> > >>>>> +
> > >>>>> +/* AC200 power supply */
> > >>>>> +&reg_dldo1 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <3300000>;
> > >>>>> +	regulator-max-microvolt = <3300000>;
> > >>>>> +	regulator-name = "vcc-ave-33";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_dldo4 {
> > >>>>> +	regulator-min-microvolt = <3300000>;
> > >>>>> +	regulator-max-microvolt = <3300000>;
> > >>>>> +	regulator-name = "vcc-wifi-io";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_drivevbus {
> > >>>>> +	regulator-name = "usb0-vbus";
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_eldo1 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <1800000>;
> > >>>>> +	regulator-max-microvolt = <1800000>;
> > >>>>> +	regulator-name = "vcc-cpvdd-dram-emmc";
> > >>>>> +};
> > >>>>> +
> > >>>>> +/* Supplies the arisc management core, needed by TF-A to power off cores. */
> > >>>>> +&reg_fldo2 {
> > >>>>> +	regulator-always-on;
> > >>>>> +	regulator-min-microvolt = <1100000>;
> > >>>>> +	regulator-max-microvolt = <1100000>;
> > >>>>> +	regulator-name = "vdd-cpus";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&reg_rtc_ldo {
> > >>>>> +	regulator-name = "vcc-rtc";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&simplefb_hdmi {
> > >>>>> +	vcc-hdmi-supply = <&reg_dcdc1>;
> > >>>>> +};
> > >>>>> +
> > >>>>> +&sound {
> > >>>>> +	simple-audio-card,aux-devs = <&codec_analog>;
> > >>>>> +	simple-audio-card,widgets = "Microphone", "Microphone Jack",
> > >>>>> +				    "Headphone", "Headphone Jack";
> > >>>>> +	simple-audio-card,routing =
> > >>>>> +			"Left DAC", "DACL",
> > >>>>> +			"Right DAC", "DACR",
> > >>>>> +			"Headphone Jack", "HP",
> > >>>>> +			"ADCL", "Left ADC",
> > >>>>> +			"ADCR", "Right ADC",
> > >>>>> +			"MIC2", "Microphone Jack";
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +/* On the (unpopulated) UART pads. */
> > >>>>> +&uart0 {
> > >>>>> +	pinctrl-names = "default";
> > >>>>> +	pinctrl-0 = <&uart0_pb_pins>;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&uart1 {
> > >>>>> +	pinctrl-names = "default";
> > >>>>> +	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
> > >>>>> +	uart-has-rtscts;
> > >>>>> +	status = "okay";
> > >>>>> +
> > >>>>> +	bluetooth {
> > >>>>> +		compatible = "realtek,rtl8723bs-bt";
> > >>>>> +		enable-gpios = <&r_pio 0 4 GPIO_ACTIVE_HIGH>; /* PL4 */
> > >>>>> +		max-speed = <1500000>;
> > >>>>> +	};
> > >>>>> +};
> > >>>>> +
> > >>>>> +&usb_otg {
> > >>>>> +	dr_mode = "host";
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>> +
> > >>>>> +&usbphy {
> > >>>>> +	usb0_vbus-supply = <&reg_drivevbus>;
> > >>>>> +	usb1_vbus-supply = <&reg_drivevbus>;
> > >>>>> +	status = "okay";
> > >>>>> +};
> > >>>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>
> > >>>
> > >>>
> > >>>
> > >>
> > > 
> > > 
> > > 
> > > 
> > 
> 
> 
> 
> 
>
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