[PATCH v3 0/4] add devicetree for Forlinx FETA40i-C & OKA40i-C

[PATCH v3 0/4] add devicetree for Forlinx FETA40i-C & OKA40i-C

[Ivan Uvarov]

This patch series adds devicetree support for the Forlinx FETA40i-C SoM
and OKA40i-C carrier board/devboard.

The FETA40i-C is an "industrial/automotive" SoM by Forlinx.

SoM specs:
- SoC: R40 or A40i
- PMIC: AXP221S
- RAM: 1GiB/2GiB DDR3 (dual-rank)
- eMMC: 8GB,
- Mates with carrier board via four 80-pin connectors (AXK6F80337YG).

OKA40i-C is a carrier board by the same manufacturer for this SoM,
whose main purpose is as a development board with a variety of
peripherals:

- Power: DC5V barrel or USB OTG or 4.2V Lipo battery
- Video out: HDMI, TV out, LVDS
- WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT V2.1/3.0/4.0)
- Ethernet: 10/100Mbps
- Storage: µSD, fullsize SD, eMMC (on SoM), SATA
- USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG (micro-B)
- UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS)
- Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header
- Mini PCIe slot with sim holder for WLAN modem
- Smart card holder
- RTC (RX8010SJ)
- Two user LEDs
- Three user buttons (via KeyADC).

Of the board features listed above, support for the following has *NOT*
been tested:
- TV out & LVDS
- SATA
- Smart cards
- KeyADC buttons (no support)

The series consists of four patches, the first three of which are mutually
independent (although patch 2 may refuse to apply without patch 1).
The last patch depends on patches 2 and 3.

Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
---

Changelog:

v2 -> v3:

* add compatible string for the SoM
* move regulators aldo3, dcdc{2,3,5}, eldo{2.3} to the SoM .dtsi


v1 -> v2:

* split patch into series
  * edits to sun8i-r40.dtsi are now in separate patch
* add dt bindings for compatible strings (in separate patch)
* add /omit-if-no-ref/ to the new uart pin nodes
  * preliminary patch adds the keyword to existing nodes for UART0 & UART3
* whitespace fixes as suggested by checkpatch.pl


draft2 -> v1: 

* fix indentation from spaces to tabs;
* remove commented properties and other extraneous comments;
* enable uarts 2,4,5&7 and alias uart3;
* update the user-LED bindings;
* remove mmc1 & add mmc3 binding;
* bring together the max/min microvolts on three regulators;
    * The reported 2.5v value in ALDO2 comes from U-Boot, where apparently
      this is the KConfig default for this regulator. The correct voltage
      is 1.8v.
* remove extraneous `always-on`s from regulators dldo1 and eldo2/3;
* remove reg_dldo3 node entirely.


Ivan Uvarov (4):
  ARM: dts: sun8i: r40: add /omit-if-no-ref/ to pinmux nodes for UARTs
    0&3
  ARM: dts: sun8i: r40: add pinmux settings for MMC3 and UARTs 2,4,5&7
  dt-bindings: arm: add compatible strings for Forlinx OKA40i-C
  ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

 .../devicetree/bindings/arm/sunxi.yaml        |   6 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/sun8i-r40-feta40i.dtsi      | 106 +++++++++
 arch/arm/boot/dts/sun8i-r40-oka40i-c.dts      | 203 ++++++++++++++++++
 arch/arm/boot/dts/sun8i-r40.dtsi              |  43 ++++
 6 files changed, 361 insertions(+)
 create mode 100644 arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
 create mode 100644 arch/arm/boot/dts/sun8i-r40-oka40i-c.dts

-- 
2.25.1


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[PATCH v3 1/4] ARM: dts: sun8i: r40: add /omit-if-no-ref/ to pinmux nodes for UARTs 0&3

[Ivan Uvarov]

This patch adds the /omit-if-no-ref/ keyword to the pio nodes for
UART0 and UART3 pins of the R40 SoC, which would reduce the fdt size on
boards which do not use these UARTs.

Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>

 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index d5ad3b9efd..0b257a0779 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -631,16 +631,19 @@ spi1_cs1_pi_pin: spi1-cs1-pi-pin {
 				function = "spi1";
 			};
 
+			/omit-if-no-ref/
 			uart0_pb_pins: uart0-pb-pins {
 				pins = "PB22", "PB23";
 				function = "uart0";
 			};
 
+			/omit-if-no-ref/
 			uart3_pg_pins: uart3-pg-pins {
 				pins = "PG6", "PG7";
 				function = "uart3";
 			};
 
+			/omit-if-no-ref/
 			uart3_rts_cts_pg_pins: uart3-rts-cts-pg-pins {
 				pins = "PG8", "PG9";
 				function = "uart3";
-- 
2.25.1


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[PATCH v3 2/4] ARM: dts: sun8i: r40: add pinmux settings for MMC3 and UARTs 2, 4, 5&7

[Ivan Uvarov]

The Forlinx OKA40i-C devboard makes use of UARTs 0,2,3,4,5 and 7 of the R40
SoC, of which UART 0 is connected to an RS232 converter, UART 5 routed to
an RS485 converter, and the rest broken out directly via labeled headers.
The board also contains a micro-SD slot connected to SDC3.

This patch adds settings to R40's pinmux node for those UARTs that were not
already mapped, which would allow us to make use of all available UARTs and
the micro-SD slot on this board in a further patch.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>

 1 file changed, 40 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index 0b257a0779..51031a0e59 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -357,6 +357,8 @@ mmc3: mmc@1c12000 {
 			clock-names = "ahb", "mmc";
 			resets = <&ccu RST_BUS_MMC3>;
 			reset-names = "ahb";
+			pinctrl-0 = <&mmc3_pins>;
+			pinctrl-names = "default";
 			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
 			status = "disabled";
 			#address-cells = <1>;
@@ -601,6 +603,14 @@ mmc2_pins: mmc2-pins {
 				bias-pull-up;
 			};
 
+			mmc3_pins: mmc3-pins {
+				pins = "PI4", "PI5", "PI6",
+				       "PI7", "PI8", "PI9";
+				function = "mmc3";
+				drive-strength = <30>;
+				bias-pull-up;
+			};
+
 			/omit-if-no-ref/
 			spi0_pc_pins: spi0-pc-pins {
 				pins = "PC0", "PC1", "PC2";
@@ -637,6 +647,18 @@ uart0_pb_pins: uart0-pb-pins {
 				function = "uart0";
 			};
 
+			/omit-if-no-ref/
+			uart2_pi_pins: uart2-pi-pins {
+				pins = "PI18", "PI19";
+				function = "uart2";
+			};
+
+			/omit-if-no-ref/
+			uart2_rts_cts_pi_pins: uart2-rts-cts-pi-pins{
+				pins = "PI16", "PI17";
+				function = "uart2";
+			};
+
 			/omit-if-no-ref/
 			uart3_pg_pins: uart3-pg-pins {
 				pins = "PG6", "PG7";
@@ -648,6 +670,24 @@ uart3_rts_cts_pg_pins: uart3-rts-cts-pg-pins {
 				pins = "PG8", "PG9";
 				function = "uart3";
 			};
+
+			/omit-if-no-ref/
+			uart4_pg_pins: uart4-pg-pins {
+				pins = "PG10", "PG11";
+				function = "uart4";
+			};
+
+			/omit-if-no-ref/
+			uart5_ph_pins: uart5-ph-pins {
+				pins = "PH6", "PH7";
+				function = "uart5";
+			};
+
+			/omit-if-no-ref/
+			uart7_pi_pins: uart7-pi-pins {
+				pins = "PI20", "PI21";
+				function = "uart7";
+			};
 		};
 
 		wdt: watchdog@1c20c90 {
-- 
2.25.1


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[PATCH v3 3/4] dt-bindings: arm: add compatible strings for Forlinx OKA40i-C

[Ivan Uvarov]

The OKA40i-C is a carrier/development board for the Forlinx FETA40i-C SoM
based on the Allwinner R40/A40i SoC.

This patch adds the relevant dt-binding documentation in preparation for
the next patch, which adds a devicetree for the SoM and board.

Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>

 2 files changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index 08607c7ec1..74f8decd78 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -224,6 +224,12 @@ properties:
           - const: empire-electronix,m712
           - const: allwinner,sun5i-a13
 
+      - description: Forlinx OKA40i-C Development board
+        items:
+          - const: forlinx,oka40i-c
+          - const: forlinx,feta40i-c
+          - const: allwinner,sun8i-r40
+
       - description: FriendlyARM NanoPi A64
         items:
           - const: friendlyarm,nanopi-a64
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index f6064d84a4..e2ea1a731e 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -403,6 +403,8 @@ patternProperties:
     description: Firefly
   "^focaltech,.*":
     description: FocalTech Systems Co.,Ltd
+  "^forlinx,.*":
+    description: Baoding Forlinx Embedded Technology Co., Ltd.
   "^frida,.*":
     description: Shenzhen Frida LCD Co., Ltd.
   "^friendlyarm,.*":
-- 
2.25.1


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[PATCH v3 4/4] ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

[Ivan Uvarov]

The FETA40i-C is a SoM by Forlinx based on the Allwinner R40/A40i.

SoM specifications:

- SoC: R40 or A40i
- PMIC: AXP221S
- RAM: 1GiB/2GiB DDR3 (dual-rank)
- eMMC: 8GB,
- Mates with carrier board via four 80-pin connectors (AXK6F80337YG).

OKA40i-C is a carrier board by the same manufacturer for this SoM,
whose main purpose is as a development board with a wide variety of
peripherals:

- Power: DC5V barrel or USB OTG or 4.2V Lipo battery
- Video out: HDMI, TV out, LVDS
- WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT V2.1/3.0/4.0)
- Ethernet: 10/100Mbps
- Storage: µSD, fullsize SD, eMMC (on SoM), SATA
- USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG (micro-B)
- UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS)
- Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header
- Mini PCIe slot with sim holder for WLAN modem
- Smart card holder
- RTC (RX8010SJ)
- Two user LEDs
- Three user buttons (via KeyADC).

This patch adds a devicetree for the aforementioned SoM and devboard.
In order to reflect the modularity of this devboard and simplify adding
support for future hardware based on the same SoM, the devicetree is split:
Everything pertaining to the SoM itself is described in a separate .dtsi
file, which is included by the devboard's .dts.

Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>

 3 files changed, 310 insertions(+)

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 8e5d4ab4e7..88aae9de95 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1222,6 +1222,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-r16-nintendo-super-nes-classic.dtb \
 	sun8i-r16-parrot.dtb \
 	sun8i-r40-bananapi-m2-ultra.dtb \
+	sun8i-r40-oka40i-c.dtb \
 	sun8i-s3-elimo-initium.dtb \
 	sun8i-s3-lichee-zero-plus.dtb \
 	sun8i-s3-pinecube.dtb \
diff --git a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
new file mode 100644
index 0000000000..265e0fa57a
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
+// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
+//  Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
+//  Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+
+#include "sun8i-r40.dtsi"
+
+&i2c0 {
+	status = "okay";
+
+	axp22x: pmic@34 {
+		compatible = "x-powers,axp221";
+		reg = <0x34>;
+		interrupt-parent = <&nmi_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+#include "axp22x.dtsi"
+
+&mmc2 {
+	vmmc-supply = <&reg_dcdc1>;
+	vqmmc-supply = <&reg_aldo2>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&pio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&clk_out_a_pin>;
+	vcc-pa-supply = <&reg_dcdc1>;
+	vcc-pc-supply = <&reg_aldo2>;
+	vcc-pd-supply = <&reg_dcdc1>;
+	vcc-pf-supply = <&reg_dldo4>;
+	vcc-pg-supply = <&reg_dldo1>;
+};
+
+&reg_aldo2 {
+	regulator-always-on;
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vcc-pa";
+};
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "avcc";
+};
+
+&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 = <1100000>;
+	regulator-max-microvolt = <1100000>;
+	regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc3 {
+	regulator-always-on;
+	regulator-min-microvolt = <1100000>;
+	regulator-max-microvolt = <1100000>;
+	regulator-name = "vdd-sys";
+};
+
+&reg_dcdc5 {
+	regulator-always-on;
+	regulator-min-microvolt = <1500000>;
+	regulator-max-microvolt = <1500000>;
+	regulator-name = "vcc-dram";
+};
+
+&reg_dldo1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi-io";
+};
+
+&reg_dldo4 {
+	regulator-always-on;
+	regulator-min-microvolt = <2500000>;
+	regulator-max-microvolt = <2500000>;
+	regulator-name = "vdd2v5-sata";
+};
+
+&reg_eldo2 {
+	regulator-min-microvolt = <1200000>;
+	regulator-max-microvolt = <1200000>;
+	regulator-name = "vdd1v2-sata";
+};
+
+&reg_eldo3 {
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <2800000>;
+	regulator-name = "vcc-pe";
+};
diff --git a/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
new file mode 100644
index 0000000000..9305fda8d1
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
+// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
+//	Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
+//	Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+
+/dts-v1/;
+#include "sun8i-r40-feta40i.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "Forlinx OKA40i-C";
+	compatible = "forlinx,oka40i-c", "forlinx,feta40i-c", "allwinner,sun8i-r40";
+
+	aliases {
+		ethernet0 = &gmac;
+		serial0 = &uart0;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
+		serial5 = &uart5; /* RS485 */
+		serial7 = &uart7;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_out_con>;
+			};
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-5 {
+			gpios = <&pio 7 26 GPIO_ACTIVE_LOW>; /* PH26 */
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_STATUS;
+		};
+
+		led-6 {
+			gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /* PI15 */
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
+		};
+	};
+
+	reg_vcc5v0: vcc5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	wifi_pwrseq: wifi_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&pio 1 10 GPIO_ACTIVE_LOW>; // PB10 WIFI_EN
+		clocks = <&ccu CLK_OUTA>;
+		clock-names = "ext_clock";
+	};
+};
+
+&ahci {
+	ahci-supply = <&reg_dldo4>;
+	phy-supply = <&reg_eldo2>;
+	status = "okay";
+};
+
+&de {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&ehci2 {
+	status = "okay";
+};
+
+&gmac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac_rgmii_pins>;
+	phy-handle = <&phy1>;
+	phy-mode = "rgmii-id";
+	phy-supply = <&reg_dcdc1>;
+	status = "okay";
+};
+
+&gmac_mdio {
+	phy1: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+	};
+};
+
+&hdmi {
+	status = "okay";
+};
+
+&hdmi_out {
+	hdmi_out_con: endpoint {
+		remote-endpoint = <&hdmi_con_in>;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&mmc0 {
+	vmmc-supply = <&reg_dcdc1>;
+	vqmmc-supply = <&reg_dcdc1>;
+	bus-width = <4>;
+	cd-gpios = <&pio 8 11 GPIO_ACTIVE_LOW>; // PI11
+	status = "okay";
+};
+
+&mmc3 {
+	vmmc-supply = <&reg_dcdc1>;
+	vqmmc-supply = <&reg_dcdc1>;
+	bus-width = <4>;
+	cd-gpios = <&pio 8 10 GPIO_ACTIVE_LOW>; // PI10
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&ohci2 {
+	status = "okay";
+};
+
+&reg_dc1sw {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-lcd";
+};
+
+&reg_dldo2 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi";
+};
+
+&tcon_tv0 {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pb_pins>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pi_pins>, <&uart2_rts_cts_pi_pins>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pg_pins>, <&uart3_rts_cts_pg_pins>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_pg_pins>;
+	status = "okay";
+};
+
+&uart5 { /* RS485 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart5_ph_pins>;
+	status = "okay";
+};
+
+&uart7 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart7_pi_pins>;
+	status = "okay";
+};
+
+&usbphy {
+	usb1_vbus-supply = <&reg_vcc5v0>;
+	usb2_vbus-supply = <&reg_vcc5v0>;
+	status = "okay";
+};
-- 
2.25.1


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Re: [PATCH v3 2/4] ARM: dts: sun8i: r40: add pinmux settings for MMC3 and UARTs 2,4,5&7

[Maxime Ripard]

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Hi,

On Wed, Mar 31, 2021 at 06:56:14PM +0300, Ivan Uvarov wrote:
> The Forlinx OKA40i-C devboard makes use of UARTs 0,2,3,4,5 and 7 of the R40
> SoC, of which UART 0 is connected to an RS232 converter, UART 5 routed to
> an RS485 converter, and the rest broken out directly via labeled headers.
> The board also contains a micro-SD slot connected to SDC3.
> 
> This patch adds settings to R40's pinmux node for those UARTs that were not
> already mapped, which would allow us to make use of all available UARTs and
> the micro-SD slot on this board in a further patch.
> 
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> 
>  1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
> index 0b257a0779..51031a0e59 100644
> --- a/arch/arm/boot/dts/sun8i-r40.dtsi
> +++ b/arch/arm/boot/dts/sun8i-r40.dtsi
> @@ -357,6 +357,8 @@ mmc3: mmc@1c12000 {
>  			clock-names = "ahb", "mmc";
>  			resets = <&ccu RST_BUS_MMC3>;
>  			reset-names = "ahb";
> +			pinctrl-0 = <&mmc3_pins>;
> +			pinctrl-names = "default";
>  			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
>  			status = "disabled";
>  			#address-cells = <1>;
> @@ -601,6 +603,14 @@ mmc2_pins: mmc2-pins {
>  				bias-pull-up;
>  			};
>  
> +			mmc3_pins: mmc3-pins {
> +				pins = "PI4", "PI5", "PI6",
> +				       "PI7", "PI8", "PI9";
> +				function = "mmc3";
> +				drive-strength = <30>;
> +				bias-pull-up;
> +			};

I'd put omit-if-no-ref there too

Maxime

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Re: [PATCH v3 3/4] dt-bindings: arm: add compatible strings for Forlinx OKA40i-C

[Maxime Ripard]

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On Wed, Mar 31, 2021 at 06:56:15PM +0300, Ivan Uvarov wrote:
> The OKA40i-C is a carrier/development board for the Forlinx FETA40i-C SoM
> based on the Allwinner R40/A40i SoC.
> 
> This patch adds the relevant dt-binding documentation in preparation for
> the next patch, which adds a devicetree for the SoM and board.
> 
> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> 
>  2 files changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
> index 08607c7ec1..74f8decd78 100644
> --- a/Documentation/devicetree/bindings/arm/sunxi.yaml
> +++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
> @@ -224,6 +224,12 @@ properties:
>            - const: empire-electronix,m712
>            - const: allwinner,sun5i-a13
>  
> +      - description: Forlinx OKA40i-C Development board
> +        items:
> +          - const: forlinx,oka40i-c
> +          - const: forlinx,feta40i-c
> +          - const: allwinner,sun8i-r40
> +
>        - description: FriendlyARM NanoPi A64
>          items:
>            - const: friendlyarm,nanopi-a64
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> index f6064d84a4..e2ea1a731e 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> @@ -403,6 +403,8 @@ patternProperties:
>      description: Firefly
>    "^focaltech,.*":
>      description: FocalTech Systems Co.,Ltd
> +  "^forlinx,.*":
> +    description: Baoding Forlinx Embedded Technology Co., Ltd.
>    "^frida,.*":
>      description: Shenzhen Frida LCD Co., Ltd.
>    "^friendlyarm,.*":
> -- 
> 2.25.1

This part needs to be in a separate patch too

Maxime


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Re: [PATCH v3 4/4] ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

[Maxime Ripard]

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On Wed, Mar 31, 2021 at 06:56:16PM +0300, Ivan Uvarov wrote:
> The FETA40i-C is a SoM by Forlinx based on the Allwinner R40/A40i.
> 
> SoM specifications:
> 
> - SoC: R40 or A40i
> - PMIC: AXP221S
> - RAM: 1GiB/2GiB DDR3 (dual-rank)
> - eMMC: 8GB,
> - Mates with carrier board via four 80-pin connectors (AXK6F80337YG).
> 
> OKA40i-C is a carrier board by the same manufacturer for this SoM,
> whose main purpose is as a development board with a wide variety of
> peripherals:
> 
> - Power: DC5V barrel or USB OTG or 4.2V Lipo battery
> - Video out: HDMI, TV out, LVDS
> - WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT V2.1/3.0/4.0)
> - Ethernet: 10/100Mbps
> - Storage: µSD, fullsize SD, eMMC (on SoM), SATA
> - USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG (micro-B)
> - UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS)
> - Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header
> - Mini PCIe slot with sim holder for WLAN modem
> - Smart card holder
> - RTC (RX8010SJ)
> - Two user LEDs
> - Three user buttons (via KeyADC).
> 
> This patch adds a devicetree for the aforementioned SoM and devboard.
> In order to reflect the modularity of this devboard and simplify adding
> support for future hardware based on the same SoM, the devicetree is split:
> Everything pertaining to the SoM itself is described in a separate .dtsi
> file, which is included by the devboard's .dts.
> 
> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> 
>  3 files changed, 310 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 8e5d4ab4e7..88aae9de95 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1222,6 +1222,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
>  	sun8i-r16-nintendo-super-nes-classic.dtb \
>  	sun8i-r16-parrot.dtb \
>  	sun8i-r40-bananapi-m2-ultra.dtb \
> +	sun8i-r40-oka40i-c.dtb \
>  	sun8i-s3-elimo-initium.dtb \
>  	sun8i-s3-lichee-zero-plus.dtb \
>  	sun8i-s3-pinecube.dtb \
> diff --git a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> new file mode 100644
> index 0000000000..265e0fa57a
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> @@ -0,0 +1,106 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> +// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
> +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> +//  Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
> +//  Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> +
> +#include "sun8i-r40.dtsi"
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	axp22x: pmic@34 {
> +		compatible = "x-powers,axp221";
> +		reg = <0x34>;
> +		interrupt-parent = <&nmi_intc>;
> +		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +#include "axp22x.dtsi"
> +
> +&mmc2 {
> +	vmmc-supply = <&reg_dcdc1>;
> +	vqmmc-supply = <&reg_aldo2>;
> +	bus-width = <8>;
> +	non-removable;
> +	status = "okay";
> +};
> +
> +&pio {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&clk_out_a_pin>;
> +	vcc-pa-supply = <&reg_dcdc1>;
> +	vcc-pc-supply = <&reg_aldo2>;
> +	vcc-pd-supply = <&reg_dcdc1>;
> +	vcc-pf-supply = <&reg_dldo4>;
> +	vcc-pg-supply = <&reg_dldo1>;
> +};
> +
> +&reg_aldo2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1800000>;
> +	regulator-max-microvolt = <1800000>;
> +	regulator-name = "vcc-pa";
> +};
> +
> +&reg_aldo3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3000000>;
> +	regulator-max-microvolt = <3000000>;
> +	regulator-name = "avcc";
> +};
> +
> +&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 = <1100000>;
> +	regulator-max-microvolt = <1100000>;
> +	regulator-name = "vdd-cpu";
> +};
> +
> +&reg_dcdc3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1100000>;
> +	regulator-max-microvolt = <1100000>;
> +	regulator-name = "vdd-sys";
> +};
> +
> +&reg_dcdc5 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1500000>;
> +	regulator-max-microvolt = <1500000>;
> +	regulator-name = "vcc-dram";
> +};
> +
> +&reg_dldo1 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3300000>;
> +	regulator-max-microvolt = <3300000>;
> +	regulator-name = "vcc-wifi-io";
> +};
> +
> +&reg_dldo4 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <2500000>;
> +	regulator-max-microvolt = <2500000>;
> +	regulator-name = "vdd2v5-sata";
> +};
> +
> +&reg_eldo2 {
> +	regulator-min-microvolt = <1200000>;
> +	regulator-max-microvolt = <1200000>;
> +	regulator-name = "vdd1v2-sata";
> +};
> +
> +&reg_eldo3 {
> +	regulator-min-microvolt = <2800000>;
> +	regulator-max-microvolt = <2800000>;
> +	regulator-name = "vcc-pe";
> +};
> diff --git a/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> new file mode 100644
> index 0000000000..9305fda8d1
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> @@ -0,0 +1,203 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> +// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
> +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> +//	Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
> +//	Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> +
> +/dts-v1/;
> +#include "sun8i-r40-feta40i.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/ {
> +	model = "Forlinx OKA40i-C";
> +	compatible = "forlinx,oka40i-c", "forlinx,feta40i-c", "allwinner,sun8i-r40";
> +
> +	aliases {
> +		ethernet0 = &gmac;
> +		serial0 = &uart0;
> +		serial2 = &uart2;
> +		serial3 = &uart3;
> +		serial4 = &uart4;
> +		serial5 = &uart5; /* RS485 */
> +		serial7 = &uart7;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		led-5 {
> +			gpios = <&pio 7 26 GPIO_ACTIVE_LOW>; /* PH26 */
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_STATUS;
> +		};
> +
> +		led-6 {
> +			gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /* PI15 */
> +			color = <LED_COLOR_ID_BLUE>;
> +			function = LED_FUNCTION_STATUS;
> +		};

led-5 and led-6? You can start at 0 :)

Looks good otherwise, thanks

Maxime

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Re: [PATCH v3 4/4] ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

[Andre Przywara]

On Wed, 31 Mar 2021 18:56:16 +0300
Ivan Uvarov <i.uvarov@cognitivepilot.com> wrote:

> The FETA40i-C is a SoM by Forlinx based on the Allwinner R40/A40i.
> 
> SoM specifications:
> 
> - SoC: R40 or A40i
> - PMIC: AXP221S
> - RAM: 1GiB/2GiB DDR3 (dual-rank)
> - eMMC: 8GB,
> - Mates with carrier board via four 80-pin connectors (AXK6F80337YG).
> 
> OKA40i-C is a carrier board by the same manufacturer for this SoM,
> whose main purpose is as a development board with a wide variety of
> peripherals:
> 
> - Power: DC5V barrel or USB OTG or 4.2V Lipo battery
> - Video out: HDMI, TV out, LVDS
> - WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT V2.1/3.0/4.0)
> - Ethernet: 10/100Mbps
> - Storage: µSD, fullsize SD, eMMC (on SoM), SATA
> - USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG (micro-B)
> - UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS)
> - Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header
> - Mini PCIe slot with sim holder for WLAN modem
> - Smart card holder
> - RTC (RX8010SJ)
> - Two user LEDs
> - Three user buttons (via KeyADC).
> 
> This patch adds a devicetree for the aforementioned SoM and devboard.
> In order to reflect the modularity of this devboard and simplify adding
> support for future hardware based on the same SoM, the devicetree is split:
> Everything pertaining to the SoM itself is described in a separate .dtsi
> file, which is included by the devboard's .dts.
> 
> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>

Thanks for the changes, looks good to me now!

Reviewed-by: Andre Przywara <andre.przywara@arm.com>

Cheers,
Andre

>  3 files changed, 310 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 8e5d4ab4e7..88aae9de95 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1222,6 +1222,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
>  	sun8i-r16-nintendo-super-nes-classic.dtb \
>  	sun8i-r16-parrot.dtb \
>  	sun8i-r40-bananapi-m2-ultra.dtb \
> +	sun8i-r40-oka40i-c.dtb \
>  	sun8i-s3-elimo-initium.dtb \
>  	sun8i-s3-lichee-zero-plus.dtb \
>  	sun8i-s3-pinecube.dtb \
> diff --git a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> new file mode 100644
> index 0000000000..265e0fa57a
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> @@ -0,0 +1,106 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> +// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
> +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> +//  Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
> +//  Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> +
> +#include "sun8i-r40.dtsi"
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	axp22x: pmic@34 {
> +		compatible = "x-powers,axp221";
> +		reg = <0x34>;
> +		interrupt-parent = <&nmi_intc>;
> +		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +#include "axp22x.dtsi"
> +
> +&mmc2 {
> +	vmmc-supply = <&reg_dcdc1>;
> +	vqmmc-supply = <&reg_aldo2>;
> +	bus-width = <8>;
> +	non-removable;
> +	status = "okay";
> +};
> +
> +&pio {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&clk_out_a_pin>;
> +	vcc-pa-supply = <&reg_dcdc1>;
> +	vcc-pc-supply = <&reg_aldo2>;
> +	vcc-pd-supply = <&reg_dcdc1>;
> +	vcc-pf-supply = <&reg_dldo4>;
> +	vcc-pg-supply = <&reg_dldo1>;
> +};
> +
> +&reg_aldo2 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1800000>;
> +	regulator-max-microvolt = <1800000>;
> +	regulator-name = "vcc-pa";
> +};
> +
> +&reg_aldo3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3000000>;
> +	regulator-max-microvolt = <3000000>;
> +	regulator-name = "avcc";
> +};
> +
> +&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 = <1100000>;
> +	regulator-max-microvolt = <1100000>;
> +	regulator-name = "vdd-cpu";
> +};
> +
> +&reg_dcdc3 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1100000>;
> +	regulator-max-microvolt = <1100000>;
> +	regulator-name = "vdd-sys";
> +};
> +
> +&reg_dcdc5 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <1500000>;
> +	regulator-max-microvolt = <1500000>;
> +	regulator-name = "vcc-dram";
> +};
> +
> +&reg_dldo1 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <3300000>;
> +	regulator-max-microvolt = <3300000>;
> +	regulator-name = "vcc-wifi-io";
> +};
> +
> +&reg_dldo4 {
> +	regulator-always-on;
> +	regulator-min-microvolt = <2500000>;
> +	regulator-max-microvolt = <2500000>;
> +	regulator-name = "vdd2v5-sata";
> +};
> +
> +&reg_eldo2 {
> +	regulator-min-microvolt = <1200000>;
> +	regulator-max-microvolt = <1200000>;
> +	regulator-name = "vdd1v2-sata";
> +};
> +
> +&reg_eldo3 {
> +	regulator-min-microvolt = <2800000>;
> +	regulator-max-microvolt = <2800000>;
> +	regulator-name = "vcc-pe";
> +};
> diff --git a/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> new file mode 100644
> index 0000000000..9305fda8d1
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> @@ -0,0 +1,203 @@
> +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> +// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
> +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> +//	Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
> +//	Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> +
> +/dts-v1/;
> +#include "sun8i-r40-feta40i.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/ {
> +	model = "Forlinx OKA40i-C";
> +	compatible = "forlinx,oka40i-c", "forlinx,feta40i-c", "allwinner,sun8i-r40";
> +
> +	aliases {
> +		ethernet0 = &gmac;
> +		serial0 = &uart0;
> +		serial2 = &uart2;
> +		serial3 = &uart3;
> +		serial4 = &uart4;
> +		serial5 = &uart5; /* RS485 */
> +		serial7 = &uart7;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	connector {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		led-5 {
> +			gpios = <&pio 7 26 GPIO_ACTIVE_LOW>; /* PH26 */
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_STATUS;
> +		};
> +
> +		led-6 {
> +			gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /* PI15 */
> +			color = <LED_COLOR_ID_BLUE>;
> +			function = LED_FUNCTION_STATUS;
> +		};
> +	};
> +
> +	reg_vcc5v0: vcc5v0 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc5v0";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +	};
> +
> +	wifi_pwrseq: wifi_pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		reset-gpios = <&pio 1 10 GPIO_ACTIVE_LOW>; // PB10 WIFI_EN
> +		clocks = <&ccu CLK_OUTA>;
> +		clock-names = "ext_clock";
> +	};
> +};
> +
> +&ahci {
> +	ahci-supply = <&reg_dldo4>;
> +	phy-supply = <&reg_eldo2>;
> +	status = "okay";
> +};
> +
> +&de {
> +	status = "okay";
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +&ehci2 {
> +	status = "okay";
> +};
> +
> +&gmac {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&gmac_rgmii_pins>;
> +	phy-handle = <&phy1>;
> +	phy-mode = "rgmii-id";
> +	phy-supply = <&reg_dcdc1>;
> +	status = "okay";
> +};
> +
> +&gmac_mdio {
> +	phy1: ethernet-phy@1 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <1>;
> +	};
> +};
> +
> +&hdmi {
> +	status = "okay";
> +};
> +
> +&hdmi_out {
> +	hdmi_out_con: endpoint {
> +		remote-endpoint = <&hdmi_con_in>;
> +	};
> +};
> +
> +&i2c2 {
> +	status = "okay";
> +};
> +
> +&mmc0 {
> +	vmmc-supply = <&reg_dcdc1>;
> +	vqmmc-supply = <&reg_dcdc1>;
> +	bus-width = <4>;
> +	cd-gpios = <&pio 8 11 GPIO_ACTIVE_LOW>; // PI11
> +	status = "okay";
> +};
> +
> +&mmc3 {
> +	vmmc-supply = <&reg_dcdc1>;
> +	vqmmc-supply = <&reg_dcdc1>;
> +	bus-width = <4>;
> +	cd-gpios = <&pio 8 10 GPIO_ACTIVE_LOW>; // PI10
> +	status = "okay";
> +};
> +
> +&ohci1 {
> +	status = "okay";
> +};
> +
> +&ohci2 {
> +	status = "okay";
> +};
> +
> +&reg_dc1sw {
> +	regulator-min-microvolt = <3300000>;
> +	regulator-max-microvolt = <3300000>;
> +	regulator-name = "vcc-lcd";
> +};
> +
> +&reg_dldo2 {
> +	regulator-min-microvolt = <3300000>;
> +	regulator-max-microvolt = <3300000>;
> +	regulator-name = "vcc-wifi";
> +};
> +
> +&tcon_tv0 {
> +	status = "okay";
> +};
> +
> +&uart0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart0_pb_pins>;
> +	status = "okay";
> +};
> +
> +&uart2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart2_pi_pins>, <&uart2_rts_cts_pi_pins>;
> +	uart-has-rtscts;
> +	status = "okay";
> +};
> +
> +&uart3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart3_pg_pins>, <&uart3_rts_cts_pg_pins>;
> +	uart-has-rtscts;
> +	status = "okay";
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart4_pg_pins>;
> +	status = "okay";
> +};
> +
> +&uart5 { /* RS485 */
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart5_ph_pins>;
> +	status = "okay";
> +};
> +
> +&uart7 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart7_pi_pins>;
> +	status = "okay";
> +};
> +
> +&usbphy {
> +	usb1_vbus-supply = <&reg_vcc5v0>;
> +	usb2_vbus-supply = <&reg_vcc5v0>;
> +	status = "okay";
> +};


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Re: [PATCH v3 3/4] dt-bindings: arm: add compatible strings for Forlinx OKA40i-C

[Ivan Uvarov]

On Thu, 1 Apr 2021 11:40:01 +0200
Maxime Ripard <maxime@cerno.tech> wrote:

> On Wed, Mar 31, 2021 at 06:56:15PM +0300, Ivan Uvarov wrote:
> > The OKA40i-C is a carrier/development board for the Forlinx
> > FETA40i-C SoM based on the Allwinner R40/A40i SoC.
> > 
> > This patch adds the relevant dt-binding documentation in
> > preparation for the next patch, which adds a devicetree for the SoM
> > and board.
> > 
> > Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> > 
> >  2 files changed, 8 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml
> > b/Documentation/devicetree/bindings/arm/sunxi.yaml index
> > 08607c7ec1..74f8decd78 100644 ---
> > a/Documentation/devicetree/bindings/arm/sunxi.yaml +++
> > b/Documentation/devicetree/bindings/arm/sunxi.yaml @@ -224,6
> > +224,12 @@ properties:
> >            - const: empire-electronix,m712
> >            - const: allwinner,sun5i-a13
> >  
> > +      - description: Forlinx OKA40i-C Development board
> > +        items:
> > +          - const: forlinx,oka40i-c
> > +          - const: forlinx,feta40i-c
> > +          - const: allwinner,sun8i-r40
> > +
> >        - description: FriendlyARM NanoPi A64
> >          items:
> >            - const: friendlyarm,nanopi-a64
> > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> > b/Documentation/devicetree/bindings/vendor-prefixes.yaml index
> > f6064d84a4..e2ea1a731e 100644 ---
> > a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++
> > b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -403,6
> > +403,8 @@ patternProperties: description: Firefly
> >    "^focaltech,.*":
> >      description: FocalTech Systems Co.,Ltd
> > +  "^forlinx,.*":
> > +    description: Baoding Forlinx Embedded Technology Co., Ltd.
> >    "^frida,.*":
> >      description: Shenzhen Frida LCD Co., Ltd.
> >    "^friendlyarm,.*":
> > -- 
> > 2.25.1  
> 
> This part needs to be in a separate patch too
> 
> Maxime
> 

As in, a separate patch for just the vendor prefix?

--
Regards,
Ivan Uvarov

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Re: [PATCH v3 4/4] ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

[Ivan Uvarov]

On Thu, 1 Apr 2021 11:43:56 +0200
Maxime Ripard <maxime@cerno.tech> wrote:

> On Wed, Mar 31, 2021 at 06:56:16PM +0300, Ivan Uvarov wrote:
> > The FETA40i-C is a SoM by Forlinx based on the Allwinner R40/A40i.
> > 
> > SoM specifications:
> > 
> > - SoC: R40 or A40i
> > - PMIC: AXP221S
> > - RAM: 1GiB/2GiB DDR3 (dual-rank)
> > - eMMC: 8GB,
> > - Mates with carrier board via four 80-pin connectors
> > (AXK6F80337YG).
> > 
> > OKA40i-C is a carrier board by the same manufacturer for this SoM,
> > whose main purpose is as a development board with a wide variety of
> > peripherals:
> > 
> > - Power: DC5V barrel or USB OTG or 4.2V Lipo battery
> > - Video out: HDMI, TV out, LVDS
> > - WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT
> > V2.1/3.0/4.0)
> > - Ethernet: 10/100Mbps
> > - Storage: µSD, fullsize SD, eMMC (on SoM), SATA
> > - USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG
> > (micro-B)
> > - UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS)
> > - Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header
> > - Mini PCIe slot with sim holder for WLAN modem
> > - Smart card holder
> > - RTC (RX8010SJ)
> > - Two user LEDs
> > - Three user buttons (via KeyADC).
> > 
> > This patch adds a devicetree for the aforementioned SoM and
> > devboard. In order to reflect the modularity of this devboard and
> > simplify adding support for future hardware based on the same SoM,
> > the devicetree is split: Everything pertaining to the SoM itself is
> > described in a separate .dtsi file, which is included by the
> > devboard's .dts.
> > 
> > Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> > 
> >  3 files changed, 310 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index 8e5d4ab4e7..88aae9de95 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -1222,6 +1222,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
> >  	sun8i-r16-nintendo-super-nes-classic.dtb \
> >  	sun8i-r16-parrot.dtb \
> >  	sun8i-r40-bananapi-m2-ultra.dtb \
> > +	sun8i-r40-oka40i-c.dtb \
> >  	sun8i-s3-elimo-initium.dtb \
> >  	sun8i-s3-lichee-zero-plus.dtb \
> >  	sun8i-s3-pinecube.dtb \
> > diff --git a/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> > b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi new file mode 100644
> > index 0000000000..265e0fa57a
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/sun8i-r40-feta40i.dtsi
> > @@ -0,0 +1,106 @@
> > +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> > +// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
> > +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> > +//  Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
> > +//  Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> > +
> > +#include "sun8i-r40.dtsi"
> > +
> > +&i2c0 {
> > +	status = "okay";
> > +
> > +	axp22x: pmic@34 {
> > +		compatible = "x-powers,axp221";
> > +		reg = <0x34>;
> > +		interrupt-parent = <&nmi_intc>;
> > +		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> > +	};
> > +};
> > +
> > +#include "axp22x.dtsi"
> > +
> > +&mmc2 {
> > +	vmmc-supply = <&reg_dcdc1>;
> > +	vqmmc-supply = <&reg_aldo2>;
> > +	bus-width = <8>;
> > +	non-removable;
> > +	status = "okay";
> > +};
> > +
> > +&pio {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&clk_out_a_pin>;
> > +	vcc-pa-supply = <&reg_dcdc1>;
> > +	vcc-pc-supply = <&reg_aldo2>;
> > +	vcc-pd-supply = <&reg_dcdc1>;
> > +	vcc-pf-supply = <&reg_dldo4>;
> > +	vcc-pg-supply = <&reg_dldo1>;
> > +};
> > +
> > +&reg_aldo2 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1800000>;
> > +	regulator-max-microvolt = <1800000>;
> > +	regulator-name = "vcc-pa";
> > +};
> > +
> > +&reg_aldo3 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <3000000>;
> > +	regulator-max-microvolt = <3000000>;
> > +	regulator-name = "avcc";
> > +};
> > +
> > +&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 = <1100000>;
> > +	regulator-max-microvolt = <1100000>;
> > +	regulator-name = "vdd-cpu";
> > +};
> > +
> > +&reg_dcdc3 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1100000>;
> > +	regulator-max-microvolt = <1100000>;
> > +	regulator-name = "vdd-sys";
> > +};
> > +
> > +&reg_dcdc5 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <1500000>;
> > +	regulator-max-microvolt = <1500000>;
> > +	regulator-name = "vcc-dram";
> > +};
> > +
> > +&reg_dldo1 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <3300000>;
> > +	regulator-max-microvolt = <3300000>;
> > +	regulator-name = "vcc-wifi-io";
> > +};
> > +
> > +&reg_dldo4 {
> > +	regulator-always-on;
> > +	regulator-min-microvolt = <2500000>;
> > +	regulator-max-microvolt = <2500000>;
> > +	regulator-name = "vdd2v5-sata";
> > +};
> > +
> > +&reg_eldo2 {
> > +	regulator-min-microvolt = <1200000>;
> > +	regulator-max-microvolt = <1200000>;
> > +	regulator-name = "vdd1v2-sata";
> > +};
> > +
> > +&reg_eldo3 {
> > +	regulator-min-microvolt = <2800000>;
> > +	regulator-max-microvolt = <2800000>;
> > +	regulator-name = "vcc-pe";
> > +};
> > diff --git a/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> > b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts new file mode 100644
> > index 0000000000..9305fda8d1
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/sun8i-r40-oka40i-c.dts
> > @@ -0,0 +1,203 @@
> > +// SPDX-License-Identifier: GPL-2.0+ OR MIT
> > +// Copyright (C) 2021 Ivan Uvarov <i.uvarov@cognitivepilot.com>
> > +// Based on the sun8i-r40-bananapi-m2-ultra.dts, which is:
> > +//	Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
> > +//	Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> > +
> > +/dts-v1/;
> > +#include "sun8i-r40-feta40i.dtsi"
> > +
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/leds/common.h>
> > +
> > +/ {
> > +	model = "Forlinx OKA40i-C";
> > +	compatible = "forlinx,oka40i-c", "forlinx,feta40i-c",
> > "allwinner,sun8i-r40"; +
> > +	aliases {
> > +		ethernet0 = &gmac;
> > +		serial0 = &uart0;
> > +		serial2 = &uart2;
> > +		serial3 = &uart3;
> > +		serial4 = &uart4;
> > +		serial5 = &uart5; /* RS485 */
> > +		serial7 = &uart7;
> > +	};
> > +
> > +	chosen {
> > +		stdout-path = "serial0:115200n8";
> > +	};
> > +
> > +	connector {
> > +		compatible = "hdmi-connector";
> > +		type = "a";
> > +
> > +		port {
> > +			hdmi_con_in: endpoint {
> > +				remote-endpoint = <&hdmi_out_con>;
> > +			};
> > +		};
> > +	};
> > +
> > +	leds {
> > +		compatible = "gpio-leds";
> > +
> > +		led-5 {
> > +			gpios = <&pio 7 26 GPIO_ACTIVE_LOW>; /*
> > PH26 */
> > +			color = <LED_COLOR_ID_GREEN>;
> > +			function = LED_FUNCTION_STATUS;
> > +		};
> > +
> > +		led-6 {
> > +			gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /*
> > PI15 */
> > +			color = <LED_COLOR_ID_BLUE>;
> > +			function = LED_FUNCTION_STATUS;
> > +		};  
> 
> led-5 and led-6? You can start at 0 :)
> 
> Looks good otherwise, thanks
> 
> Maxime

This is how they are labeled on the board, so I kept the names. Should
I rename them anyway?

--
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Ivan Uvarov

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Re: [PATCH v3 3/4] dt-bindings: arm: add compatible strings for Forlinx OKA40i-C

[Rob Herring]

On Wed, 31 Mar 2021 18:56:15 +0300, Ivan Uvarov wrote:
> The OKA40i-C is a carrier/development board for the Forlinx FETA40i-C SoM
> based on the Allwinner R40/A40i SoC.
> 
> This patch adds the relevant dt-binding documentation in preparation for
> the next patch, which adds a devicetree for the SoM and board.
> 
> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> 
>  2 files changed, 8 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

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Re: [PATCH v3 3/4] dt-bindings: arm: add compatible strings for Forlinx OKA40i-C

[Maxime Ripard]

[-- Attachment #1.1: Type: text/plain, Size: 2292 bytes --]

Hi,

On Thu, Apr 01, 2021 at 05:55:37PM +0300, Ivan Uvarov wrote:
> On Thu, 1 Apr 2021 11:40:01 +0200
> Maxime Ripard <maxime@cerno.tech> wrote:
> 
> > On Wed, Mar 31, 2021 at 06:56:15PM +0300, Ivan Uvarov wrote:
> > > The OKA40i-C is a carrier/development board for the Forlinx
> > > FETA40i-C SoM based on the Allwinner R40/A40i SoC.
> > > 
> > > This patch adds the relevant dt-binding documentation in
> > > preparation for the next patch, which adds a devicetree for the SoM
> > > and board.
> > > 
> > > Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com>
> > > 
> > >  2 files changed, 8 insertions(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml
> > > b/Documentation/devicetree/bindings/arm/sunxi.yaml index
> > > 08607c7ec1..74f8decd78 100644 ---
> > > a/Documentation/devicetree/bindings/arm/sunxi.yaml +++
> > > b/Documentation/devicetree/bindings/arm/sunxi.yaml @@ -224,6
> > > +224,12 @@ properties:
> > >            - const: empire-electronix,m712
> > >            - const: allwinner,sun5i-a13
> > >  
> > > +      - description: Forlinx OKA40i-C Development board
> > > +        items:
> > > +          - const: forlinx,oka40i-c
> > > +          - const: forlinx,feta40i-c
> > > +          - const: allwinner,sun8i-r40
> > > +
> > >        - description: FriendlyARM NanoPi A64
> > >          items:
> > >            - const: friendlyarm,nanopi-a64
> > > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> > > b/Documentation/devicetree/bindings/vendor-prefixes.yaml index
> > > f6064d84a4..e2ea1a731e 100644 ---
> > > a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++
> > > b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -403,6
> > > +403,8 @@ patternProperties: description: Firefly
> > >    "^focaltech,.*":
> > >      description: FocalTech Systems Co.,Ltd
> > > +  "^forlinx,.*":
> > > +    description: Baoding Forlinx Embedded Technology Co., Ltd.
> > >    "^frida,.*":
> > >      description: Shenzhen Frida LCD Co., Ltd.
> > >    "^friendlyarm,.*":
> > > -- 
> > > 2.25.1  
> > 
> > This part needs to be in a separate patch too
> > 
> > Maxime
> > 
> 
> As in, a separate patch for just the vendor prefix?

Exactly :)

Maxime

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Re: [PATCH v3 4/4] ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-C

[Maxime Ripard]

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On Thu, Apr 01, 2021 at 05:59:38PM +0300, Ivan Uvarov wrote:
> > > +	leds {
> > > +		compatible = "gpio-leds";
> > > +
> > > +		led-5 {
> > > +			gpios = <&pio 7 26 GPIO_ACTIVE_LOW>; /*
> > > PH26 */
> > > +			color = <LED_COLOR_ID_GREEN>;
> > > +			function = LED_FUNCTION_STATUS;
> > > +		};
> > > +
> > > +		led-6 {
> > > +			gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /*
> > > PI15 */
> > > +			color = <LED_COLOR_ID_BLUE>;
> > > +			function = LED_FUNCTION_STATUS;
> > > +		};  
> > 
> > led-5 and led-6? You can start at 0 :)
> > 
> > Looks good otherwise, thanks
> 
> This is how they are labeled on the board, so I kept the names. Should
> I rename them anyway?

No, it makes sense then, just add a comment to make it obvious :)

Maxime

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