Import U-Boot v2026.07 (unmodified upstream source, base for rtwo patches)

board/powkiddy/x55/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_POWKIDDY_X55_RK3566
+
+config SYS_BOARD
+	default "x55"
+
+config SYS_VENDOR
+	default "powkiddy"
+
+config SYS_CONFIG_NAME
+	default "powkiddy-x55-rk3566"
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+
+endif

board/powkiddy/x55/MAINTAINERS

@@ -0,0 +1,7 @@
+X55
+M:	Chris Morgan <macromorgan@hotmail.com>
+S:	Maintained
+F:	board/powkiddy/x55
+F:	include/configs/powkiddy-x55-rk3566.h
+F:	configs/powkiddy-x55-rk3566_defconfig
+F:	arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi

board/powkiddy/x55/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier:     GPL-2.0+
+#
+# Copyright (c) 2023 Chris Morgan <macromorgan@hotmail.com>
+#
+
+obj-y += x55.o

board/powkiddy/x55/x55.c

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2023 Chris Morgan <macromorgan@hotmail.com>
+ */
+
+#include <asm/io.h>
+
+#define GPIO4_BASE		0xfe770000
+#define GPIO_SWPORT_DR_L	0x0000
+#define GPIO_SWPORT_DDR_L	0x0008
+#define GPIO_B4			BIT(12)
+#define GPIO_B5			BIT(13)
+#define GPIO_B6			BIT(14)
+
+#define GPIO_WRITEMASK(bits)	((bits) << 16)
+
+/*
+ * Start LED very early so user knows device is on. Set color
+ * to red.
+ */
+void spl_board_init(void)
+{
+	/* Set GPIO4_B4, GPIO4_B5, and GPIO4_B6 to output. */
+	writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | \
+	       (GPIO_B6 | GPIO_B5 | GPIO_B4),
+	       (GPIO4_BASE + GPIO_SWPORT_DDR_L));
+	/* Set GPIO4_B5 and GPIO4_B6 to 0 and GPIO4_B4 to 1. */
+	writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | GPIO_B4,
+	       (GPIO4_BASE + GPIO_SWPORT_DR_L));
+}
+
+int rk_board_late_init(void)
+{
+	/* Turn off red LED and turn on orange LED. */
+	writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | GPIO_B6,
+	       (GPIO4_BASE + GPIO_SWPORT_DR_L));
+
+	return 0;
+}