feat(plat/mediatek/mt8186): add pwrap and pmic driver
1. Add 8186 pwrap driver to access pmic.
2. Add 6366 pmic driver to support clean PWRHOLD.
TEST=build pass
BUG=b:202871018
Signed-off-by: James Lo <james.lo@mediatek.corp-partner.google.com>
Change-Id: I3bc90460a6a55dff8d3293e04482abcad789bbb2
diff --git a/plat/mediatek/mt8186/drivers/pmic/pmic.c b/plat/mediatek/mt8186/drivers/pmic/pmic.c
new file mode 100644
index 0000000..4f7ab13
--- /dev/null
+++ b/plat/mediatek/mt8186/drivers/pmic/pmic.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <pmic.h>
+#include <pmic_wrap_init.h>
+
+uint32_t pmic_get_hwcid(void)
+{
+ uint32_t val = 0;
+
+ pwrap_read(PMIC_RG_HWCID_ADDR, &val);
+
+ return val;
+}
+
+void pmic_power_off(void)
+{
+ pwrap_write(PMIC_PWRHOLD, 0x0);
+}