rockchip: add Kernel 5.10 support

Remove all upstreamed patches and add the kernel configuration for
version 5.10.

The Rock Pi 4 was split in multiple versions. Add a DTS with the old
name in order to keep compatibility while having kernel 5.4 and 5.10 in
parallel. Switch to the Rock Pi 4A DTS once Kernel 5.4 support is
removed.

Tested-on: Nanoi R2S

Signed-off-by: David Bauer <mail@david-bauer.net>

7 files changed, 341 insertions, 0 deletions

diff --git a/target/linux/rockchip/patches-5.10/002-net-usb-r8152-add-LED-configuration-from-OF.patch b/target/linux/rockchip/patches-5.10/002-net-usb-r8152-add-LED-configuration-from-OF.patch
new file mode 100644
index 0000000000..53b6413cf3
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/002-net-usb-r8152-add-LED-configuration-from-OF.patch
@@ -0,0 +1,74 @@
+From 82985725e071f2a5735052f18e109a32aeac3a0b Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Sun, 26 Jul 2020 02:38:31 +0200
+Subject: [PATCH] net: usb: r8152: add LED configuration from OF
+
+This adds the ability to configure the LED configuration register using
+OF. This way, the correct value for board specific LED configuration can
+be determined.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ drivers/net/usb/r8152.c | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -11,6 +11,7 @@
+ #include <linux/mii.h>
+ #include <linux/ethtool.h>
+ #include <linux/usb.h>
++#include <linux/of.h>
+ #include <linux/crc32.h>
+ #include <linux/if_vlan.h>
+ #include <linux/uaccess.h>
+@@ -4363,6 +4364,22 @@ static void rtl_tally_reset(struct r8152
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RSTTALLY, ocp_data);
+ }
+ 
++static int r8152_led_configuration(struct r8152 *tp)
++{
++	u32 led_data;
++	int ret;
++
++	ret = of_property_read_u32(tp->udev->dev.of_node, "realtek,led-data",
++								&led_data);
++
++	if (ret)
++		return ret;
++	
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_LEDSEL, led_data);
++
++	return 0;
++}
++
+ static void r8152b_init(struct r8152 *tp)
+ {
+ 	u32 ocp_data;
+@@ -4404,6 +4421,8 @@ static void r8152b_init(struct r8152 *tp
+ 	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
+ 	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
+ 	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++
++	r8152_led_configuration(tp);
+ }
+ 
+ static void r8153_init(struct r8152 *tp)
+@@ -4533,6 +4552,8 @@ static void r8153_init(struct r8152 *tp)
+ 		tp->coalesce = COALESCE_SLOW;
+ 		break;
+ 	}
++
++	r8152_led_configuration(tp);
+ }
+ 
+ static void r8153b_init(struct r8152 *tp)
+@@ -4609,6 +4630,8 @@ static void r8153b_init(struct r8152 *tp
+ 	rtl_tally_reset(tp);
+ 
+ 	tp->coalesce = 15000;	/* 15 us */
++
++	r8152_led_configuration(tp);
+ }
+ 
+ static int rtl8152_pre_reset(struct usb_interface *intf)
diff --git a/target/linux/rockchip/patches-5.10/003-dt-bindings-net-add-RTL8152-binding-documentation.patch b/target/linux/rockchip/patches-5.10/003-dt-bindings-net-add-RTL8152-binding-documentation.patch
new file mode 100644
index 0000000000..be262b993c
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/003-dt-bindings-net-add-RTL8152-binding-documentation.patch
@@ -0,0 +1,54 @@
+From 3ee05f4aa64fc86af3be5bc176ba5808de9260a7 Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Sun, 26 Jul 2020 15:30:33 +0200
+Subject: [PATCH] dt-bindings: net: add RTL8152 binding documentation
+
+Add binding documentation for the Realtek RTL8152 / RTL8153 USB ethernet
+adapters.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ .../bindings/net/realtek,rtl8152.yaml         | 36 +++++++++++++++++++
+ 1 file changed, 36 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/net/realtek,rtl8152.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/net/realtek,rtl8152.yaml
+@@ -0,0 +1,36 @@
++# SPDX-License-Identifier: GPL-2.0
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/net/realtek,rtl8152.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Realtek RTL8152/RTL8153 series USB ethernet
++
++maintainers:
++  - David Bauer <mail@david-bauer.net>
++
++properties:
++  compatible:
++    oneOf:
++      - items:
++          - enum:
++              - realtek,rtl8152
++              - realtek,rtl8153
++
++  reg:
++    description: The device number on the USB bus
++
++  realtek,led-data:
++    description: Value to be written to the LED configuration register.
++
++required:
++  - compatible
++  - reg
++
++examples:
++  - |
++    usb-eth@2 {
++      compatible = "realtek,rtl8153";
++      reg = <2>;
++      realtek,led-data = <0x87>;
++    };
+\ No newline at end of file
diff --git a/target/linux/rockchip/patches-5.10/100-rockchip-use-system-LED-for-OpenWrt.patch b/target/linux/rockchip/patches-5.10/100-rockchip-use-system-LED-for-OpenWrt.patch
new file mode 100644
index 0000000000..7f9af85b1d
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/100-rockchip-use-system-LED-for-OpenWrt.patch
@@ -0,0 +1,31 @@
+From 6731d2c9039fbe1ecf21915eab3acee0a999508a Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Fri, 10 Jul 2020 21:38:20 +0200
+Subject: [PATCH] rockchip: use system LED for OpenWrt
+
+Use the SYS LED on the casing for showing system status.
+
+This patch is kept seperate from the NanoPi R2S support patch, as i plan
+on submitting the device support upstream.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
+@@ -13,6 +13,13 @@
+ 	model = "FriendlyElec NanoPi R2S";
+ 	compatible = "friendlyarm,nanopi-r2s", "rockchip,rk3328";
+ 
++	aliases {
++		led-boot = &sys_led;
++		led-failsafe = &sys_led;
++		led-running = &sys_led;
++		led-upgrade = &sys_led;
++	};
++
+ 	chosen {
+ 		stdout-path = "serial2:1500000n8";
+ 	};
diff --git a/target/linux/rockchip/patches-5.10/101-dts-rockchip-add-usb3-controller-node-for-RK3328-SoCs.patch b/target/linux/rockchip/patches-5.10/101-dts-rockchip-add-usb3-controller-node-for-RK3328-SoCs.patch
new file mode 100644
index 0000000000..eb2c9b9d83
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/101-dts-rockchip-add-usb3-controller-node-for-RK3328-SoCs.patch
@@ -0,0 +1,62 @@
+From: William Wu <william.wu@rock-chips.com>
+
+RK3328 has one USB 3.0 OTG controller which uses DWC_USB3
+core's general architecture. It can act as static xHCI host
+controller, static device controller, USB 3.0/2.0 OTG basing
+on ID of USB3.0 PHY.
+
+Signed-off-by: William Wu <william.wu@rock-chips.com>
+Signed-off-by: Leonidas P. Papadakos <papadakospan@gmail.com>
+
+---
+
+NOTE: This binding still has issues. From the original thread:
+
+the rk3328 usb3-phy has an issue with detecting any plugin events
+after a previous device got removed - see the inno-usb3-phy driver
+in the vendor kernel.
+
+The current state is good-enough for enabling the USB3 attached LAN
+port of the NanoPi R2S. However, it might explode depending on your
+use-case. You've been warned.
+
+---
+ arch/arm64/boot/dts/rockchip/rk3328.dtsi | 27 ++++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+@@ -983,6 +983,33 @@
+ 		status = "disabled";
+ 	};
+ 
++	usbdrd3: usb@ff600000 {
++		compatible = "rockchip,rk3328-dwc3", "rockchip,rk3399-dwc3";
++		clocks = <&cru SCLK_USB3OTG_REF>, <&cru SCLK_USB3OTG_SUSPEND>,
++			 <&cru ACLK_USB3OTG>;
++		clock-names = "ref_clk", "suspend_clk",
++			      "bus_clk";
++		#address-cells = <2>;
++		#size-cells = <2>;
++		ranges;
++		status = "disabled";
++
++		usbdrd_dwc3: dwc3@ff600000 {
++			compatible = "snps,dwc3";
++			reg = <0x0 0xff600000 0x0 0x100000>;
++			interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
++			dr_mode = "otg";
++			phy_type = "utmi_wide";
++			snps,dis_enblslpm_quirk;
++			snps,dis-u2-freeclk-exists-quirk;
++			snps,dis_u2_susphy_quirk;
++			snps,dis_u3_susphy_quirk;
++			snps,dis-del-phy-power-chg-quirk;
++			snps,dis-tx-ipgap-linecheck-quirk;
++			status = "disabled";
++		};
++	};
++
+ 	gic: interrupt-controller@ff811000 {
+ 		compatible = "arm,gic-400";
+ 		#interrupt-cells = <3>;
diff --git a/target/linux/rockchip/patches-5.10/102-rockchip-enable-LAN-port-on-NanoPi-R2S.patch b/target/linux/rockchip/patches-5.10/102-rockchip-enable-LAN-port-on-NanoPi-R2S.patch
new file mode 100644
index 0000000000..20d18597db
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/102-rockchip-enable-LAN-port-on-NanoPi-R2S.patch
@@ -0,0 +1,60 @@
+From 0fc3b9b7619c4878f73a6a7989863f0d1a3fd392 Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Fri, 10 Jul 2020 21:12:16 +0200
+Subject: [PATCH] rockchip: enabled LAN port on NanoPi R2S
+
+Enable the USB3 port on the FriendlyARM NanoPi R2S.
+This is required for the USB3 attached LAN port to work.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ .../boot/dts/rockchip/rk3328-nanopi-r2s.dts   | 27 +++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
+@@ -44,6 +44,18 @@
+ 		};
+ 	};
+ 
++	vcc_rtl8153: vcc-rtl8153-regulator {
++		compatible = "regulator-fixed";
++		gpio = <&gpio2 RK_PC6 GPIO_ACTIVE_HIGH>;
++		pinctrl-names = "default";
++		pinctrl-0 = <&rtl8153_en_drv>;
++		regulator-always-on;
++		regulator-name = "vcc_rtl8153";
++		regulator-min-microvolt = <5000000>;
++		regulator-max-microvolt = <5000000>;
++		enable-active-high;
++	};
++
+ 	leds {
+ 		compatible = "gpio-leds";
+ 		pinctrl-0 = <&lan_led_pin>,  <&sys_led_pin>, <&wan_led_pin>;
+@@ -267,6 +279,12 @@
+ 			};
+ 		};
+ 	};
++
++	usb {
++		rtl8153_en_drv: rtl8153-en-drv {
++			rockchip,pins = <2 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
++		};
++	};
+ };
+ 
+ &io_domains {
+@@ -373,3 +391,12 @@
+ &usb_host0_ohci {
+ 	status = "okay";
+ };
++
++&usbdrd3 {
++	status = "okay";
++};
++
++&usbdrd_dwc3 {
++	dr_mode = "host";
++	status = "okay";
++};
diff --git a/target/linux/rockchip/patches-5.10/103-arm64-rockchip-add-OF-node-for-USB-eth-on-NanoPi-R2S.patch b/target/linux/rockchip/patches-5.10/103-arm64-rockchip-add-OF-node-for-USB-eth-on-NanoPi-R2S.patch
new file mode 100644
index 0000000000..473c265016
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/103-arm64-rockchip-add-OF-node-for-USB-eth-on-NanoPi-R2S.patch
@@ -0,0 +1,28 @@
+From 2795c8b31a686bdb8338f9404d18ef7a154f0d75 Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Sun, 26 Jul 2020 13:32:59 +0200
+Subject: [PATCH] arm64: rockchip: add OF node for USB eth on NanoPi R2S
+
+This adds the OF node for the USB3 ethernet adapter on the FriendlyARM
+NanoPi R2S. Add the correct value for the RTL8153 LED configuration
+register to match the blink behavior of the other port on the device.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
+@@ -399,4 +399,11 @@
+ &usbdrd_dwc3 {
+ 	dr_mode = "host";
+ 	status = "okay";
++
++	usb-eth@2 {
++		compatible = "realtek,rtl8153";
++		reg = <2>;
++
++		realtek,led-data = <0x87>;
++	};
+ };
diff --git a/target/linux/rockchip/patches-5.10/104-rockchip-use-USB-host-by-default-on-rk3399-rock-pi-4.patch b/target/linux/rockchip/patches-5.10/104-rockchip-use-USB-host-by-default-on-rk3399-rock-pi-4.patch
new file mode 100644
index 0000000000..da87227564
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/104-rockchip-use-USB-host-by-default-on-rk3399-rock-pi-4.patch
@@ -0,0 +1,32 @@
+From e12f67fe83446432ef16704c22ec23bd1dbcd094 Mon Sep 17 00:00:00 2001
+From: Vicente Bergas <vicencb@gmail.com>
+Date: Tue, 1 Dec 2020 16:41:32 +0100
+Subject: arm64: dts: rockchip: use USB host by default on rk3399-rock-pi-4
+
+Based on the board schematics at
+https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi_4c_v12_sch_20200620.pdf
+on page 19 there is an USB Type-A receptacle being used as an USB-OTG port.
+
+But the Type-A connector is not valid for OTG operation, for this reason
+there is a switch to select host or device role.
+This is non-compliant and error prone because switching is manual.
+So, use host mode as it corresponds for a Type-A receptacle.
+
+Signed-off-by: Vicente Bergas <vicencb@gmail.com>
+Link: https://lore.kernel.org/r/20201201154132.1286-4-vicencb@gmail.com
+Signed-off-by: Heiko Stuebner <heiko@sntech.de>
+---
+ arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+@@ -680,7 +680,7 @@
+ 
+ &usbdrd_dwc3_0 {
+ 	status = "okay";
+-	dr_mode = "otg";
++	dr_mode = "host";
+ };
+ 
+ &usbdrd3_1 {