5 files changed, 97 insertions, 0 deletions
diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index d303999614..3ccde26f1b 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -192,3 +192,4 @@ obj-$(CONFIG_MACH_SKOV_ARM9CPU)			+= skov-arm9cpu/
 obj-$(CONFIG_MACH_RK3568_EVB)			+= rockchip-rk3568-evb/
 obj-$(CONFIG_MACH_RK3568_BPI_R2PRO)			+= rockchip-rk3568-bpi-r2pro/
 obj-$(CONFIG_MACH_PINE64_QUARTZ64)		+= pine64-quartz64/
+obj-$(CONFIG_MACH_RADXA_ROCK3)			+= radxa-rock3/
diff --git a/arch/arm/boards/radxa-rock3/.gitignore b/arch/arm/boards/radxa-rock3/.gitignore
new file mode 100644
index 0000000000..f458f794b5
--- /dev/null
+++ b/arch/arm/boards/radxa-rock3/.gitignore
@@ -0,0 +1 @@
+sdram-init.bin
diff --git a/arch/arm/boards/radxa-rock3/Makefile b/arch/arm/boards/radxa-rock3/Makefile
new file mode 100644
index 0000000000..b37b6c870b
--- /dev/null
+++ b/arch/arm/boards/radxa-rock3/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-y += board.o
+lwl-y += lowlevel.o
diff --git a/arch/arm/boards/radxa-rock3/board.c b/arch/arm/boards/radxa-rock3/board.c
new file mode 100644
index 0000000000..05a526b06e
--- /dev/null
+++ b/arch/arm/boards/radxa-rock3/board.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <bootsource.h>
+#include <common.h>
+#include <init.h>
+
+struct rock3_model {
+	const char *name;
+	const char *shortname;
+};
+
+static int rock3_probe(struct device_d *dev)
+{
+	enum bootsource bootsource = bootsource_get();
+	int instance = bootsource_get_instance();
+	const struct rock3_model *model;
+
+	model = device_get_match_data(dev);
+
+	barebox_set_model(model->name);
+	barebox_set_hostname(model->shortname);
+
+	if (bootsource == BOOTSOURCE_MMC && instance == 1)
+		of_device_enable_path("/chosen/environment-sd");
+	else
+		of_device_enable_path("/chosen/environment-emmc");
+
+	return 0;
+}
+
+static const struct rock3_model rock3a = {
+	.name = "Radxa ROCK3 Model A",
+	.shortname = "rock3a",
+};
+
+static const struct of_device_id rock3_of_match[] = {
+	{
+		.compatible = "radxa,rock3a",
+		.data = &rock3a,
+	},
+	{ /* sentinel */ },
+};
+
+static struct driver_d rock3_board_driver = {
+	.name = "board-rock3",
+	.probe = rock3_probe,
+	.of_compatible = rock3_of_match,
+};
+coredevice_platform_driver(rock3_board_driver);
diff --git a/arch/arm/boards/radxa-rock3/lowlevel.c b/arch/arm/boards/radxa-rock3/lowlevel.c
new file mode 100644
index 0000000000..00a68889cd
--- /dev/null
+++ b/arch/arm/boards/radxa-rock3/lowlevel.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <common.h>
+#include <linux/sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <mach/hardware.h>
+#include <mach/atf.h>
+#include <debug_ll.h>
+#include <mach/rockchip.h>
+
+extern char __dtb_rk3568_rock_3a_start[];
+
+static noinline void rk3568_start(void *fdt)
+{
+	/*
+	 * Image execution starts at 0x0, but this is used for ATF and
+	 * OP-TEE later, so move away from here.
+	 */
+	if (current_el() == 3)
+		relocate_to_adr_full(RK3568_BAREBOX_LOAD_ADDRESS);
+	else
+		relocate_to_current_adr();
+
+	setup_c();
+
+	/*
+	 * Enable vccio4 1.8V and vccio6 1.8V
+	 * Needed for GMAC to work.
+	 */
+	writel(RK_SETBITS(0x50), 0xfdc20140);
+
+	if (current_el() == 3) {
+		rk3568_lowlevel_init();
+		rk3568_atf_load_bl31(fdt);
+		/* not reached */
+	}
+
+	barebox_arm_entry(RK3568_DRAM_BOTTOM, 0x80000000 - RK3568_DRAM_BOTTOM, fdt);
+}
+
+ENTRY_FUNCTION(start_rock3a, r0, r1, r2)
+{
+	rk3568_start(__dtb_rk3568_rock_3a_start);
+}