[PATCH] arm: boards: Add support for Protonic PRTPUK board

[PATCH] arm: boards: Add support for Protonic PRTPUK board

[David Jander]

PRTPUK is a credit-card sized ISOBUS virtual terminal, based on the
Rockchip RK3576 SoC, that features a CAN interface and a 100/1000Base-T1
interface for HS-ISOBUS (HSI), as well as a USB-C port for connecting to a
touch-screen monitor.

Signed-off-by: David Jander <david@protonic.nl>
---
 arch/arm/boards/Makefile                   |   1 +
 arch/arm/boards/protonic-prtpuk/Makefile   |   3 +
 arch/arm/boards/protonic-prtpuk/board.c    | 162 ++++++++
 arch/arm/boards/protonic-prtpuk/lowlevel.c |  23 +
 arch/arm/configs/multi_v8_defconfig        |   1 +
 arch/arm/configs/rockchip_v8_defconfig     |   1 +
 arch/arm/dts/Makefile                      |   1 +
 arch/arm/dts/rk3576-prtpuk-linux.dts       | 462 +++++++++++++++++++++
 arch/arm/dts/rk3576-prtpuk.dts             | 124 ++++++
 arch/arm/mach-rockchip/Kconfig             |   6 +
 dts/Bindings/arm/rockchip.yaml             |   5 +
 images/Makefile.rockchip                   |   1 +
 12 files changed, 790 insertions(+)
 create mode 100644 arch/arm/boards/protonic-prtpuk/Makefile
 create mode 100644 arch/arm/boards/protonic-prtpuk/board.c
 create mode 100644 arch/arm/boards/protonic-prtpuk/lowlevel.c
 create mode 100644 arch/arm/dts/rk3576-prtpuk-linux.dts
 create mode 100644 arch/arm/dts/rk3576-prtpuk.dts

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index ac1fa74d4c..01062783b1 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -92,6 +92,7 @@ obj-$(CONFIG_MACH_POLYHEX_DEBIX)		+= polyhex-debix/
 obj-$(CONFIG_MACH_PROTONIC_IMX6)		+= protonic-imx6/
 obj-$(CONFIG_MACH_PROTONIC_IMX8M)		+= protonic-imx8m/
 obj-$(CONFIG_MACH_PROTONIC_MECSBC)		+= protonic-mecsbc/
+obj-$(CONFIG_MACH_PROTONIC_PRTPUK)		+= protonic-prtpuk/
 obj-$(CONFIG_MACH_PROTONIC_STM32MP1)		+= protonic-stm32mp1/
 obj-$(CONFIG_MACH_PROTONIC_STM32MP13)		+= protonic-stm32mp13/
 obj-$(CONFIG_MACH_QIL_A9260)			+= qil-a926x/
diff --git a/arch/arm/boards/protonic-prtpuk/Makefile b/arch/arm/boards/protonic-prtpuk/Makefile
new file mode 100644
index 0000000000..b37b6c870b
--- /dev/null
+++ b/arch/arm/boards/protonic-prtpuk/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-y += board.o
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/protonic-prtpuk/board.c b/arch/arm/boards/protonic-prtpuk/board.c
new file mode 100644
index 0000000000..59ee065aa8
--- /dev/null
+++ b/arch/arm/boards/protonic-prtpuk/board.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#define pr_fmt(fmt) "PRTPUK: " fmt
+
+#include <bootsource.h>
+#include <common.h>
+#include <deep-probe.h>
+#include <init.h>
+#include <mach/rockchip/bbu.h>
+#include <environment.h>
+#include <param.h>
+#include <of_device.h>
+#include <aiodev.h>
+#include <globalvar.h>
+
+struct prtpuk_model {
+	const char *name;
+	const char *shortname;
+};
+
+struct prtpuk_priv {
+	int hw_id;
+	int hw_rev;
+};
+
+static struct prtpuk_priv prtpuk_data;
+
+static int saradc_get_value(const char *chan)
+{
+	int ret, voltage;
+
+	ret = aiochannel_name_get_value(chan, &voltage);
+	if (ret) {
+		pr_warn_once("Cannot read ADC %s: %pe\n", chan, ERR_PTR(ret));
+		return 0;
+	}
+
+	return voltage;
+}
+
+static int prtpuk_get_vin_mv(void)
+{
+	return saradc_get_value("aiodev0.in_value4_mV") * 22;
+}
+
+static bool prtpuk_get_usb_boot(void)
+{
+	return saradc_get_value("aiodev0.in_value1_mV") < 74;
+}
+
+static int prtpuk_adc_id_values[] = {
+	1800, 1662, 1521, 1354, 1214, 1059, 900, 742, 335, 589, 278, 137, 0
+};
+
+static int prtpuk_get_adc_id(const char *chan)
+{
+	int val;
+	unsigned int t;
+
+	val = saradc_get_value(chan) + 74;
+
+	for (t = 0; t < ARRAY_SIZE(prtpuk_adc_id_values); t++) {
+		if (val > prtpuk_adc_id_values[t])
+			return t;
+	}
+
+	return t;
+}
+
+static void prtpuk_process_adc(struct device *dev)
+{
+	int vin;
+
+	prtpuk_data.hw_id = prtpuk_get_adc_id("aiodev0.in_value3_mV");
+	prtpuk_data.hw_rev = prtpuk_get_adc_id("aiodev0.in_value2_mV");
+
+	dev_add_param_uint32_ro(dev, "boardrev", &prtpuk_data.hw_rev, "%u");
+	dev_add_param_uint32_ro(dev, "boardid", &prtpuk_data.hw_id, "%u");
+
+	/* Check if we need to enable the USB gadget instead of booting */
+	if (prtpuk_get_usb_boot()) {
+		globalvar_add_simple("boot.default", "net");
+		globalvar_add_simple("usbgadget.acm", "1");
+		globalvar_add_simple("usbgadget.autostart", "1");
+		globalvar_add_simple("system.partitions", "/dev/disk0(mmc0)");
+		pr_info("PRTPUK: Enter USB recovery\n");
+	} else {
+		globalvar_add_simple("boot.default", "bootchooser");
+	}
+
+	pr_info("Board id: %d, revision %d\n", prtpuk_data.hw_id, prtpuk_data.hw_rev);
+	vin = prtpuk_get_vin_mv();
+	pr_info("VIN = %d.%d V\n", vin / 1000, (vin % 1000) / 100);
+}
+
+static int prtpuk_of_fixup_hwrev(struct device *dev)
+{
+	const char *compat;
+	char *buf;
+
+	compat = of_device_get_match_compatible(dev);
+
+	buf = xasprintf("%s-m%u-r%u", compat, prtpuk_data.hw_id,
+			prtpuk_data.hw_rev);
+	barebox_set_of_machine_compatible(buf);
+
+	free(buf);
+
+	return 0;
+}
+
+static int prtpuk_probe(struct device *dev)
+{
+	int ret = 0;
+	enum bootsource bootsource = bootsource_get();
+	int instance = bootsource_get_instance();
+	const struct prtpuk_model *model;
+	struct device_node *np;
+
+	np = of_find_node_by_name_address(NULL, "adc@2ae00000");
+	of_device_ensure_probed(np);
+
+	model = device_get_match_data(dev);
+
+	barebox_set_model(model->name);
+	barebox_set_hostname(model->shortname);
+
+	if (bootsource == BOOTSOURCE_MMC && instance == 1)
+		of_device_enable_path("/chosen/environment-sd");
+	else
+		of_device_enable_path("/chosen/environment-emmc");
+
+	rockchip_bbu_mmc_register("emmc", BBU_HANDLER_FLAG_DEFAULT, "/dev/mmc0");
+	rockchip_bbu_mmc_register("sd", 0, "/dev/mmc1");
+
+	prtpuk_process_adc(dev);
+	prtpuk_of_fixup_hwrev(dev);
+
+	return ret;
+}
+
+static const struct prtpuk_model prtpuk = {
+	.name = "Protonic PRTPUK board",
+	.shortname = "prtpuk",
+};
+
+static const struct of_device_id prtpuk_of_match[] = {
+	{
+		.compatible = "prt,prtpuk",
+		.data = &prtpuk,
+	},
+	{ /* sentinel */ },
+};
+
+static struct driver prtpuk_board_driver = {
+	.name = "board-prtpuk",
+	.probe = prtpuk_probe,
+	.of_compatible = prtpuk_of_match,
+};
+coredevice_platform_driver(prtpuk_board_driver);
+
+BAREBOX_DEEP_PROBE_ENABLE(prtpuk_of_match);
diff --git a/arch/arm/boards/protonic-prtpuk/lowlevel.c b/arch/arm/boards/protonic-prtpuk/lowlevel.c
new file mode 100644
index 0000000000..08de527bf6
--- /dev/null
+++ b/arch/arm/boards/protonic-prtpuk/lowlevel.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <common.h>
+#include <asm/barebox-arm.h>
+#include <mach/rockchip/hardware.h>
+#include <mach/rockchip/atf.h>
+#include <debug_ll.h>
+
+extern char __dtb_rk3576_prtpuk_start[];
+
+ENTRY_FUNCTION(start_prtpuk, r0, r1, r2)
+{
+	putc_ll('>');
+
+	if (current_el() == 3)
+		relocate_to_adr_full(RK3576_BAREBOX_LOAD_ADDRESS);
+	else
+		relocate_to_current_adr();
+
+	setup_c();
+
+	rk3576_barebox_entry(__dtb_rk3576_prtpuk_start);
+}
diff --git a/arch/arm/configs/multi_v8_defconfig b/arch/arm/configs/multi_v8_defconfig
index a487d331d0..d63899b278 100644
--- a/arch/arm/configs/multi_v8_defconfig
+++ b/arch/arm/configs/multi_v8_defconfig
@@ -37,6 +37,7 @@ CONFIG_MACH_RK3568_BPI_R2PRO=y
 CONFIG_MACH_PINE64_PINETAB2=y
 CONFIG_MACH_PINE64_QUARTZ64=y
 CONFIG_MACH_PROTONIC_MECSBC=y
+CONFIG_MACH_PROTONIC_PRTPUK=y
 CONFIG_MACH_RADXA_ROCK3=y
 CONFIG_MACH_RADXA_ROCK5=y
 CONFIG_MACH_RADXA_CM3=y
diff --git a/arch/arm/configs/rockchip_v8_defconfig b/arch/arm/configs/rockchip_v8_defconfig
index 0239f857aa..bd23cadc18 100644
--- a/arch/arm/configs/rockchip_v8_defconfig
+++ b/arch/arm/configs/rockchip_v8_defconfig
@@ -4,6 +4,7 @@ CONFIG_MACH_RK3568_BPI_R2PRO=y
 CONFIG_MACH_PINE64_PINETAB2=y
 CONFIG_MACH_PINE64_QUARTZ64=y
 CONFIG_MACH_PROTONIC_MECSBC=y
+CONFIG_MACH_PROTONIC_PRTPUK=y
 CONFIG_MACH_RADXA_ROCK3=y
 CONFIG_MACH_RADXA_ROCK5=y
 CONFIG_MACH_RADXA_CM3=y
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 6612a51452..75d7c1923b 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -112,6 +112,7 @@ lwl-$(CONFIG_MACH_PROTONIC_IMX6) += \
 	imx6ull-jozacp.dtb.o
 lwl-$(CONFIG_MACH_PROTONIC_IMX8M) += imx8mm-prt8mm.dtb.o
 lwl-$(CONFIG_MACH_PROTONIC_MECSBC) += rk3568-mecsbc.dtb.o
+lwl-$(CONFIG_MACH_PROTONIC_PRTPUK) += rk3576-prtpuk.dtb.o
 lwl-$(CONFIG_MACH_PROTONIC_STM32MP1) += \
 	stm32mp151-prtt1a.dtb.o \
 	stm32mp151-prtt1c.dtb.o \
diff --git a/arch/arm/dts/rk3576-prtpuk-linux.dts b/arch/arm/dts/rk3576-prtpuk-linux.dts
new file mode 100644
index 0000000000..2085adbaa8
--- /dev/null
+++ b/arch/arm/dts/rk3576-prtpuk-linux.dts
@@ -0,0 +1,462 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/soc/rockchip,vop2.h>
+#include <dt-bindings/usb/pd.h>
+#include <dt-bindings/pwm/pwm.h>
+#include <arm64/rockchip/rk3576.dtsi>
+
+/ {
+	model = "Protonic PRTPUK";
+	compatible = "prt,prtpuk", "rockchip,rk3576";
+
+	aliases {
+		ethernet0 = &gmac0;
+	};
+
+	chosen: chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+/* PWM support still missing for RK3576, pwm version 4
+	vdd_gpu: regulator-vdd-gpu {
+		compatible = "pwm-regulator";
+		pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
+		pinctrl-names = "default";
+		pinctrl = <&pwm2m0_pins>;
+		regulator-name = "vdd_gpu";
+		regulator-min-microvolt = <770000>;
+		regulator-max-microvolt = <850000>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-settling-time-up-us = <250>;
+		pwm-dutycycle-range = <0 100>; /* dutycycle inverted 0% => 0.915V * /
+	};
+
+	vdd_lit: regulator-vdd-lit {
+		compatible = "pwm-regulator";
+		pwms = <&pwm1 3 5000 PWM_POLARITY_INVERTED>;
+		pinctrl-names = "default";
+		pinctrl = <&pwm1m0_pins>;
+		regulator-name = "vdd_lit";
+		regulator-min-microvolt = <836000>;
+		regulator-max-microvolt = <960000>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-settling-time-up-us = <250>;
+		pwm-dutycycle-range = <0 100>; /* dutycycle inverted 0% => 0.915V * /
+	};
+*/
+	vdd_gpu: regulator-vdd-gpu {
+		compatible = "regulator-gpio";
+		gpios = <&gpio0 RK_PD3 GPIO_ACTIVE_HIGH>;
+		states = <850000 0x0>,
+			 <770000 0x1>;
+		regulator-name = "vdd_gpu";
+		regulator-min-microvolt = <770000>;
+		regulator-max-microvolt = <850000>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	vdd_lit: regulator-vdd-lit {
+		compatible = "regulator-gpio";
+		gpios = <&gpio0 RK_PC0 GPIO_ACTIVE_HIGH>;
+		states = <960000 0x0>,
+			 <836000 0x1>;
+		regulator-name = "vdd_lit";
+		regulator-min-microvolt = <836000>;
+		regulator-max-microvolt = <960000>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	p12v0: p12v0-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "p12v0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	p3v3: p3v3-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "p3v3";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	p1v8: p1v8-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "p1v8";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	vcc_typec0: regulator-vcc-typec0 {
+		compatible = "regulator-gpio";
+		enable-active-high;
+		enable-gpios = <&gpio4 RK_PB1 GPIO_ACTIVE_HIGH>;
+		gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;
+		states = <5000000 0x0>,
+			 <15000000 0x1>;
+		regulator-name = "vcc_typec0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <15000000>;
+		vin-supply = <&p12v0>;
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+
+		green_led: green-led {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_HEARTBEAT;
+			gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&combphy1_psu {
+	status = "okay";
+};
+
+&combphy0_ps {
+	status = "okay";
+};
+
+&cpu_b0 {
+	cpu-supply = <&vdd_big>;
+};
+
+&cpu_b1 {
+	cpu-supply = <&vdd_big>;
+};
+
+&cpu_b2 {
+	cpu-supply = <&vdd_big>;
+};
+
+&cpu_b3 {
+	cpu-supply = <&vdd_big>;
+};
+
+&cpu_l0 {
+	cpu-supply = <&vdd_lit>;
+};
+
+&cpu_l1 {
+	cpu-supply = <&vdd_lit>;
+};
+
+&cpu_l2 {
+	cpu-supply = <&vdd_lit>;
+};
+
+&cpu_l3 {
+	cpu-supply = <&vdd_lit>;
+};
+
+&gmac0 {
+	phy-mode = "rgmii-id";
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth0m0_miim
+		     &eth0m0_tx_bus2
+		     &eth0m0_rx_bus2
+		     &eth0m0_rgmii_clk
+		     &eth0m0_rgmii_bus>;
+	status = "okay";
+};
+
+&mdio0 {
+	rgmii_phy0: phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x0>;
+		clocks = <&cru REFCLKO25M_GMAC0_OUT>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&eth_phy0_rst>;
+		reset-assert-us = <20000>;
+		reset-deassert-us = <100000>;
+		reset-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&gpu {
+	mali-supply = <&vdd_gpu>;
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0m1_xfer>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1m1_xfer>;
+	status = "okay";
+
+	vdd_big: regulator@42 {
+		compatible = "rockchip,rk8602";
+		reg = <0x42>;
+		fcs,suspend-voltage-selector = <1>;
+		regulator-name = "vdd_big";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <750000>;
+		regulator-max-microvolt = <1000000>;
+		regulator-ramp-delay = <2300>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2m3_xfer>;
+	status = "okay";
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3m3_xfer>;
+	status = "okay";
+
+	usbc0: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <RK_PC7 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usbc0_interrupt>;
+		vbus-supply = <&vcc_typec0>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			data-role = "dual";
+			/* fusb302 supports PD Rev 2.0 Ver 1.2 */
+			pd-revision = /bits/ 8 <0x2 0x0 0x1 0x2>;
+			power-role = "source";
+			source-pdos = <PDO_FIXED(5000, 1500,
+						 PDO_FIXED_USB_COMM | PDO_FIXED_DATA_SWAP)>,
+				      <PDO_FIXED(15000, 1000,
+						 PDO_FIXED_USB_COMM | PDO_FIXED_DATA_SWAP)>;
+
+			altmodes {
+				displayport {
+					svid = /bits/ 16 <0xff01>;
+					vdo = <0xffffffff>;
+				};
+			};
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					usbc0_hs_ep: endpoint {
+						remote-endpoint = <&usb_drd0_hs_ep>;
+					};
+				};
+				port@1 {
+					reg = <1>;
+					usbc0_ss_ep: endpoint {
+						remote-endpoint = <&usb_drd0_ss_ep>;
+					};
+				};
+				port@2 {
+					reg = <2>;
+					usbc0_dp_ep: endpoint {
+						remote-endpoint = <&usbdp_phy_ep>;
+					};
+				};
+			};
+		};
+	};
+
+	pcf8563: rtc@51 {
+		compatible = "nxp,pcf8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "rtcic_32kout";
+	};
+};
+
+&sai3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sai3m1_lrck
+		     &sai3m1_sclk
+		     &sai3m1_sdi
+		     &sai3m1_sdo>;
+	rockchip,trcm-sync-tx-only;
+	status = "okay";
+};
+
+&pcie1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_reset>;
+	reset-gpios = <&gpio0 RK_PB6 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&p3v3>;
+	status = "okay";
+};
+
+&pinctrl {
+	ethernet {
+		eth_phy0_rst: eth_phy0_rst {
+			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pcie {
+		pcie_reset: pcie-reset {
+			rockchip,pins = <0 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>,
+				/* pcie1_clkreqnm3 */
+				<4 RK_PC1 5 &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		usbc0_interrupt: usbc0-interrupt {
+			rockchip,pins = <4 RK_PC7 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+		usbc0_sbu1: usbc0-sbu1 {
+			rockchip,pins = <2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+		usbc0_sbu2: usbc0-sbu2 {
+			rockchip,pins = <2 RK_PA7 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+	};
+};
+
+&saradc {
+	vref-supply = <&p1v8>;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	full-pwr-cycle-in-suspend;
+	max-frequency = <200000000>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	no-sdio;
+	no-sd;
+	non-removable;
+	status = "okay";
+};
+
+&u2phy0 {
+	status = "okay";
+};
+
+&u2phy0_otg {
+	status = "okay";
+};
+
+/*
+&u2phy1 {
+	status = "okay";
+};
+
+&u2phy1_otg {
+	phy-supply = <&vcc_5v0_usbhost>;
+	status = "okay";
+};
+*/
+
+&uart0 {
+	pinctrl-0 = <&uart0m0_xfer>;
+	status = "okay";
+};
+
+&usb_drd0_dwc3 {
+	usb-role-switch;
+	dr_mode = "otg";
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			usb_drd0_hs_ep: endpoint {
+				remote-endpoint = <&usbc0_hs_ep>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			usb_drd0_ss_ep: endpoint {
+				remote-endpoint = <&usbc0_ss_ep>;
+			};
+		};
+	};
+};
+
+/*
+&usb_drd1_dwc3 {
+	dr_mode = "host";
+	status = "okay";
+};
+*/
+
+&usbdp_phy {
+	mode-switch;
+	orientation-switch;
+	pinctrl-names = "default";
+	pinctrl-0 = <&usbc0_sbu1 &usbc0_sbu2>;
+	sbu1-dc-gpios = <&gpio2 RK_PA6 GPIO_ACTIVE_HIGH>;
+	sbu2-dc-gpios = <&gpio2 RK_PA7 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+
+	port {
+		usbdp_phy_ep: endpoint {
+			remote-endpoint = <&usbc0_dp_ep>;
+		};
+	};
+};
+
+&vop {
+	status = "okay";
+};
+
+&vop_mmu {
+	status = "okay";
+};
+
+&vp0 {
+	vp0_out_dsi1: endpoint@ROCKCHIP_VOP2_EP_DP0 {
+		reg = <ROCKCHIP_VOP2_EP_DP0>;
+		/* remote-endpoint = <...>; ?? */
+	};
+};
+
+/*
+&pwm1 {
+	status = "okay";
+};
+
+&pwm2 {
+	status = "okay";
+};
+*/
diff --git a/arch/arm/dts/rk3576-prtpuk.dts b/arch/arm/dts/rk3576-prtpuk.dts
new file mode 100644
index 0000000000..a66b6f502c
--- /dev/null
+++ b/arch/arm/dts/rk3576-prtpuk.dts
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include "rk3576-prtpuk-linux.dts"
+#include "rk3576.dtsi"
+
+/ {
+	barebox,deep-probe;
+
+	aliases {
+		state = &state_emmc;
+	};
+
+	chosen: chosen {
+		environment-emmc {
+			compatible = "barebox,environment";
+			device-path = &environment_emmc;
+			status = "okay";
+		};
+	};
+
+	state_emmc: state {
+		magic = <0x292D3A3C>;
+		compatible = "barebox,state";
+		backend-type = "raw";
+		backend = <&state_backend_emmc>;
+		backend-stridesize = <0x400>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		bootstate {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			system0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				remaining_attempts {
+					reg = <0x0 0x4>;
+					type = "uint32";
+					default = <3>;
+				};
+
+				priority {
+					reg = <0x4 0x4>;
+					type = "uint32";
+					default = <21>;
+				};
+			};
+
+			system1 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				remaining_attempts {
+					reg = <0x10 0x4>;
+					type = "uint32";
+					default = <3>;
+				};
+
+				priority {
+					reg = <0x14 0x4>;
+					type = "uint32";
+					default = <20>;
+				};
+			};
+
+			last_chosen {
+				reg = <0x20 0x4>;
+				type = "uint32";
+			};
+		};
+
+		blobs {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			data_partitions {
+				reg = <0x26 0x100>;
+				type = "string";
+			};
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* Address will be determined by the bootloader */
+		ramoops {
+			compatible = "ramoops";
+		};
+	};
+};
+
+&sdhci {
+	no-sd;
+
+	partitions {
+		compatible = "barebox,fixed-partitions";
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		/* eMMC reserved 8MiB for barebox (2 copies?), env and state */
+		environment_emmc: partition@7b0000 {
+			label = "barebox-environment";
+			reg = <0x0 0x7b0000 0x0 0x10000>;
+		};
+
+		/* eMMC state after barebox and environment */
+		state_backend_emmc: partition@7c0000 {
+			label = "state";
+			reg = <0x0 0x7c0000 0x0 0x40000>;
+		};
+	};
+};
+
+&u2phy0_otg {
+	dr_mode = "peripheral";
+	status = "okay";
+};
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index d172522c6f..cc9ea304af 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -95,6 +95,12 @@ config MACH_PROTONIC_MECSBC
 	help
 	  Say Y here if you are using a Protonic MECSBC
 
+config MACH_PROTONIC_PRTPUK
+	select ARCH_RK3576
+	bool "Protonic PRTPUK"
+	help
+	  Say Y here if you are using a Protonic PRTPUK
+
 config MACH_RADXA_ROCK3
 	select ARCH_RK3568
 	bool "Radxa ROCK3"
diff --git a/dts/Bindings/arm/rockchip.yaml b/dts/Bindings/arm/rockchip.yaml
index 5772d905f3..93f9c4bb7c 100644
--- a/dts/Bindings/arm/rockchip.yaml
+++ b/dts/Bindings/arm/rockchip.yaml
@@ -828,6 +828,11 @@ properties:
           - const: prt,mecsbc
           - const: rockchip,rk3568
 
+      - description: Protonic PRTPUK board
+        items:
+          - const: prt,prtpuk
+          - const: rockchip,rk3576
+
       - description: QNAP TS-433-4G 4-Bay NAS
         items:
           - const: qnap,ts433
diff --git a/images/Makefile.rockchip b/images/Makefile.rockchip
index 761c6b8149..99376b010f 100644
--- a/images/Makefile.rockchip
+++ b/images/Makefile.rockchip
@@ -35,6 +35,7 @@ $(call build_rockchip_image, CONFIG_MACH_PINE64_PINETAB2, start_pinetab2_v0, pin
 $(call build_rockchip_image, CONFIG_MACH_PINE64_PINETAB2, start_pinetab2_v2, pine64-pinetab2/sdram-init.bin, pinetab2-v2)
 $(call build_rockchip_image, CONFIG_MACH_PINE64_QUARTZ64, start_quartz64a, pine64-quartz64/sdram-init.bin, quartz64a)
 $(call build_rockchip_image, CONFIG_MACH_PROTONIC_MECSBC, start_mecsbc, protonic-mecsbc/sdram-init.bin, mecsbc)
+$(call build_rockchip_image, CONFIG_MACH_PROTONIC_PRTPUK, start_prtpuk, protonic-prtpuk/sdram-init.bin, prtpuk)
 $(call build_rockchip_image, CONFIG_MACH_RADXA_ROCK3, start_rock3a, radxa-rock3/sdram-init.bin, rock3a)
 $(call build_rockchip_image, CONFIG_MACH_RADXA_ROCK5, start_rock5b, radxa-rock5/sdram-init.bin, rock5b)
 $(call build_rockchip_image, CONFIG_MACH_RADXA_CM3, start_radxa_cm3_io, radxa-cm3/sdram-init.bin, radxa-cm3-io)
-- 
2.47.2

Re: [PATCH] arm: boards: Add support for Protonic PRTPUK board

[David Jander]

On Wed, 13 Aug 2025 09:01:49 +0200
David Jander <david@protonic.nl> wrote:

> PRTPUK is a credit-card sized ISOBUS virtual terminal, based on the
> Rockchip RK3576 SoC, that features a CAN interface and a 100/1000Base-T1
> interface for HS-ISOBUS (HSI), as well as a USB-C port for connecting to a
> touch-screen monitor.

Note: This code should apply to next as of today, but next doesn't compile
right now. On v2025.07.0 it depends on the RK3576 support patches, but will
build (and run) fine when both are applied.

Best regards,

-- 
David Jander

Re: [PATCH] arm: boards: Add support for Protonic PRTPUK board

[Ahmad Fatoum]

Hello David,

On 13.08.25 09:28, David Jander wrote:
> On Wed, 13 Aug 2025 09:01:49 +0200
> David Jander <david@protonic.nl> wrote:
> 
>> PRTPUK is a credit-card sized ISOBUS virtual terminal, based on the
>> Rockchip RK3576 SoC, that features a CAN interface and a 100/1000Base-T1
>> interface for HS-ISOBUS (HSI), as well as a USB-C port for connecting to a
>> touch-screen monitor.
> 
> Note: This code should apply to next as of today, but next doesn't compile
> right now. On v2025.07.0 it depends on the RK3576 support patches, but will
> build (and run) fine when both are applied.

Firstly, thanks for your patches!

I'd like to more prominently advertise new hardware support in the future and
I am happy about screenshots of new hardware running bfetch[1] or other eye candy
to be posted (or reposted if you have a Mastodon account) on @barebox@fosstodon.org.

Just saying. :-)

[1]: b4 shazam https://lore.barebox.org/barebox/5e2ad1d8-6049-409c-b048-99d58452747a@pengutronix.de

Cheers,
Ahmad


> 
> Best regards,
> 


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