arm: mediatek: add support for MediaTek MT8365 SoC

This patch adds basic support for MediaTek MT8365 SoC.
The dtsi has been copied from Linux source code tag v6.7-rc2.
(commit 9b5d64654ea8f51fe1e8e29ca1777b620be8fb7c)

Signed-off-by: Julien Masson <jmasson@baylibre.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/arch/arm/mach-mediatek/mt8365/init.c b/arch/arm/mach-mediatek/mt8365/init.c
new file mode 100644
index 0000000000..8f03ed2876
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt8365/init.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 MediaTek Inc.
+ * Copyright (C) 2023 BayLibre, SAS
+ * Author: Julien Masson <jmasson@baylibre.com>
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+
+#include <asm/global_data.h>
+#include <asm/system.h>
+#include <dm/uclass.h>
+#include <wdt.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	return fdtdec_setup_mem_size_base();
+}
+
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = gd->ram_base;
+	gd->bd->bi_dram[0].size = gd->ram_size;
+
+	return 0;
+}
+
+int mtk_soc_early_init(void)
+{
+	return 0;
+}
+
+void reset_cpu(void)
+{
+	struct udevice *wdt;
+
+	if (IS_ENABLED(CONFIG_PSCI_RESET)) {
+		psci_system_reset();
+	} else {
+		uclass_first_device(UCLASS_WDT, &wdt);
+		if (wdt)
+			wdt_expire_now(wdt, 0);
+	}
+}
+
+int print_cpuinfo(void)
+{
+	printf("CPU:   MediaTek MT8365\n");
+	return 0;
+}