pinephone-pro: Enable DMC node when booting from U-Boot using RK blobs

Signed-off-by: Ondrej Jirman <megi@xff.cz>

board/pine64/pinephone-pro-rk3399/Makefile

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:     GPL-2.0+
+
+obj-y += pinephone-pro-rk3399.o

board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c

@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ * (C) Copyright 2022 Peter Robinson <pbrobinson at gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <init.h>
+#include <fdt_support.h>
+#include <linux/libfdt.h>
+#include <syscon.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/grf_rk3399.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/misc.h>
+#include <power/regulator.h>
+
+#ifdef CONFIG_OF_BOARD_SETUP
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+#ifdef CONFIG_ROCKCHIP_EXTERNAL_TPL
+	int rc = fdt_find_and_setprop(blob, "/memory-controller",
+				      "status", "okay", sizeof("okay"), 1);
+	if (rc)
+		printf("Unable to enable DMC err=%s\n", fdt_strerror(rc));
+#endif
+
+	return 0;
+}
+#endif