rockchip: add kernel 5.15 as testing

Add kernel 5.15 as testing kernel for the rockchip-armv8 target.

Signed-off-by: Juergen Wurzer <wurzer.juergen@gmail.com>
[squash commits, update commit message]
Signed-off-by: David Bauer <mail@david-bauer.net>

4 files changed, 112 insertions, 0 deletions

diff --git a/target/linux/rockchip/patches-5.15/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch b/target/linux/rockchip/patches-5.15/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch
new file mode 100644
index 0000000000..792028b292
--- /dev/null
+++ b/target/linux/rockchip/patches-5.15/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch
@@ -0,0 +1,31 @@
+From af20b3384e8723077cc6484160b0cf4e9be321de Mon Sep 17 00:00:00 2001
+From: Tianling Shen <cnsztl@gmail.com>
+Date: Mon, 7 Jun 2021 15:45:37 +0800
+Subject: [PATCH] arm64: dts: rockchip: add EEPROM node for NanoPi R4S
+
+NanoPi R4S has a EEPROM attached to the 2nd I2C bus (U92), which
+stores the MAC address.
+
+Signed-off-by: Tianling Shen <cnsztl@gmail.com>
+---
+ arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+@@ -68,6 +68,15 @@
+ 	status = "disabled";
+ };
+ 
++&i2c2 {
++	eeprom@51 {
++		compatible = "microchip,24c02", "atmel,24c02";
++		reg = <0x51>;
++		pagesize = <16>;
++		read-only; /* This holds our MAC */
++	};
++};
++
+ &i2c4 {
+ 	status = "disabled";
+ };
diff --git a/target/linux/rockchip/patches-5.15/100-rockchip-use-system-LED-for-OpenWrt.patch b/target/linux/rockchip/patches-5.15/100-rockchip-use-system-LED-for-OpenWrt.patch
new file mode 100644
index 0000000000..5ec7952bfe
--- /dev/null
+++ b/target/linux/rockchip/patches-5.15/100-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 separate 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
+@@ -18,6 +18,13 @@
+ 		mmc0 = &sdmmc;
+ 	};
+ 
++	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-5.15/103-arm64-rockchip-add-OF-node-for-USB-eth-on-NanoPi-R2S.patch b/target/linux/rockchip/patches-5.15/103-arm64-rockchip-add-OF-node-for-USB-eth-on-NanoPi-R2S.patch
new file mode 100644
index 0000000000..5fe60d1ade
--- /dev/null
+++ b/target/linux/rockchip/patches-5.15/103-arm64-rockchip-add-OF-node-for-USB-eth-on-NanoPi-R2S.patch
@@ -0,0 +1,24 @@
+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, 1 insertions(+)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
+@@ -404,6 +404,7 @@
+ 	rtl8153: device@2 {
+ 		compatible = "usbbda,8153";
+ 		reg = <2>;
++		realtek,led-data = <0x87>;
+ 	};
+ };
+ 
diff --git a/target/linux/rockchip/patches-5.15/105-nanopi-r4s-sd-signalling.patch b/target/linux/rockchip/patches-5.15/105-nanopi-r4s-sd-signalling.patch
new file mode 100644
index 0000000000..a04c14b70a
--- /dev/null
+++ b/target/linux/rockchip/patches-5.15/105-nanopi-r4s-sd-signalling.patch
@@ -0,0 +1,26 @@
+From: David Bauer <mail@david-bauer.net>
+Subject: arm64: dts: rockchip: disable UHS modes for NanoPi R4S
+
+The NanoPi R4S leaves the SD card in 1.8V signalling when rebooting
+while U-Boot requires the card to be in 3.3V mode.
+
+Remove UHS support from the SD controller so the card remains in 3.3V
+mode. This reduces transfer speeds but ensures a reboot whether from
+userspace or following a kernel panic is always working.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+
+--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+@@ -121,6 +121,11 @@
+ 	status = "disabled";
+ };
+ 
++&sdmmc {
++	/delete-property/ sd-uhs-sdr104;
++	cap-sd-highspeed;
++};
++
+ &u2phy0_host {
+ 	phy-supply = <&vdd_5v>;
+ };