ARM: MediaTek: Add support for MediaTek MT8512 SoC

Add support for MediaTek MT8512 SoC. This include the file
that will initialize the SoC after boot and its device tree.

Signed-off-by: mingming lee <mingming.lee@mediatek.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/arch/arm/mach-mediatek/mt8512/init.c b/arch/arm/mach-mediatek/mt8512/init.c
new file mode 100644
index 0000000000..a38b5d12d9
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt8512/init.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Configuration for MediaTek MT8512 SoC
+ *
+ * Copyright (C) 2019 MediaTek Inc.
+ * Author: Mingming Lee <mingming.lee@mediatek.com>
+ */
+
+#include <clk.h>
+#include <common.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <ram.h>
+#include <wdt.h>
+#include <asm/arch/misc.h>
+#include <asm/armv8/mmu.h>
+#include <asm/sections.h>
+#include <dm/uclass.h>
+#include <dt-bindings/clock/mt8512-clk.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	return fdtdec_setup_mem_size_base();
+}
+
+phys_size_t  get_effective_memsize(void)
+{
+	/* limit stack below tee reserve memory */
+	return gd->ram_size - 6 * SZ_1M;
+}
+
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = gd->ram_base;
+	gd->bd->bi_dram[0].size = get_effective_memsize();
+
+	return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+	struct udevice *watchdog_dev = NULL;
+
+	if (uclass_get_device_by_seq(UCLASS_WDT, 0, &watchdog_dev))
+		if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev))
+			psci_system_reset();
+
+	wdt_expire_now(watchdog_dev, 0);
+}
+
+int print_cpuinfo(void)
+{
+	debug("CPU:   MediaTek MT8512\n");
+	return 0;
+}
+
+static struct mm_region mt8512_mem_map[] = {
+	{
+		/* DDR */
+		.virt = 0x40000000UL,
+		.phys = 0x40000000UL,
+		.size = 0x40000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
+	}, {
+		.virt = 0x00000000UL,
+		.phys = 0x00000000UL,
+		.size = 0x40000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		0,
+	}
+};
+
+struct mm_region *mem_map = mt8512_mem_map;