Initialize platform for MediaTek mt8183

- Add basic platform setup
- Add generic CPU helper functions
- Add delay timer platform implementation
- Use TI 16550 uart driver

Change-Id: I1c29569c68fe9fca5e10e88a22a29690bab7141f
Signed-off-by: kenny liang <kenny.liang@mediatek.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/plat/mediatek/mt8183/plat_pm.c b/plat/mediatek/mt8183/plat_pm.c
new file mode 100644
index 000000000..dd54d7040
--- /dev/null
+++ b/plat/mediatek/mt8183/plat_pm.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* common headers */
+#include <arch_helpers.h>
+#include <assert.h>
+#include <common/debug.h>
+#include <lib/mmio.h>
+#include <lib/psci/psci.h>
+#include <errno.h>
+
+/* mediatek platform specific headers */
+#include <platform_def.h>
+#include <scu.h>
+#include <mtk_plat_common.h>
+#include <power_tracer.h>
+#include <plat_private.h>
+
+/*******************************************************************************
+ * MTK_platform handler called when an affinity instance is about to be turned
+ * on. The level and mpidr determine the affinity instance.
+ ******************************************************************************/
+static uintptr_t secure_entrypoint;
+
+static const plat_psci_ops_t plat_plat_pm_ops = {
+	.cpu_standby			= NULL,
+	.pwr_domain_on			= NULL,
+	.pwr_domain_on_finish		= NULL,
+	.pwr_domain_off			= NULL,
+	.pwr_domain_suspend		= NULL,
+	.pwr_domain_suspend_finish	= NULL,
+	.system_off			= NULL,
+	.system_reset			= NULL,
+	.validate_power_state		= NULL,
+	.get_sys_suspend_power_state	= NULL,
+};
+
+int plat_setup_psci_ops(uintptr_t sec_entrypoint,
+			const plat_psci_ops_t **psci_ops)
+{
+	*psci_ops = &plat_plat_pm_ops;
+	secure_entrypoint = sec_entrypoint;
+	return 0;
+}