feat(mt8186): add SPM suspend driver
Add SPM suspend driver for suspend/resume features.
TEST=build pass
BUG=b:202871018
Change-Id: I25b4b97cd3138a7b347385539e47ccfa884d64fc
diff --git a/plat/mediatek/mt8186/include/plat_uart.h b/plat/mediatek/mt8186/include/plat_uart.h
new file mode 100644
index 0000000..f0fb442
--- /dev/null
+++ b/plat/mediatek/mt8186/include/plat_uart.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __PLAT_UART_H__
+#define __PLAT_UART_H__
+
+/* UART error code */
+#define UART_DONE U(0)
+#define UART_PM_ERROR U(1)
+
+/* UART HW information */
+#ifndef HW_SUPPORT_UART_PORTS
+#define HW_SUPPORT_UART_PORTS (2U) /* the UART PORTs current HW have */
+#endif
+#define MTK_UART_SEND_SLEEP_REQ (1U) /* Request uart to sleep */
+#define MTK_UART_SLEEP_ACK_IDLE (1U) /* uart in idle state */
+#define MTK_UART_WAIT_ACK_TIMES (50U)
+
+#define UART_BASE0 (0x11002000)
+#define UART_BASE1 (0x11003000)
+
+#endif /* __PLAT_UART_H__ */