rockchip: rk3328: Add support for Orange Pi R1 Plus LTS
The OrangePi R1 Plus LTS is a minor variant of OrangePi R1 Plus with
the on-board NIC chip changed from rtl8211e to yt8531c, and RAM type
changed from DDR4 to LPDDR3.
The device tree is taken from kernel v6.4-rc1.
Signed-off-by: Tianling Shen <cnsztl@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3328-orangepi-r1-plus-lts-u-boot.dtsi b/arch/arm/dts/rk3328-orangepi-r1-plus-lts-u-boot.dtsi
new file mode 100644
index 0000000..ebe33e4
--- /dev/null
+++ b/arch/arm/dts/rk3328-orangepi-r1-plus-lts-u-boot.dtsi
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * (C) Copyright 2018-2019 Rockchip Electronics Co., Ltd
+ * (C) Copyright 2020 David Bauer
+ */
+
+#include "rk3328-u-boot.dtsi"
+#include "rk3328-sdram-lpddr3-666.dtsi"
+/ {
+ chosen {
+ u-boot,spl-boot-order = "same-as-spl", &sdmmc, &emmc;
+ };
+};
+
+&gpio0 {
+ bootph-pre-ram;
+};
+
+&pinctrl {
+ bootph-pre-ram;
+};
+
+&sdmmc0m1_pin {
+ bootph-pre-ram;
+};
+
+&pcfg_pull_up_4ma {
+ bootph-pre-ram;
+};
+
+/* Need this and all the pinctrl/gpio stuff above to set pinmux */
+&vcc_sd {
+ bootph-pre-ram;
+};
+
+&gmac2io {
+ snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
+ snps,reset-active-low;
+ snps,reset-delays-us = <0 10000 50000>;
+};
+
+&spi0 {
+ spi_flash: spiflash@0 {
+ bootph-all;
+ };
+};