From 3b07cec93a82510b6720e685a9d7b1d520348e17 Mon Sep 17 00:00:00 2001
From: Chee Hong Ang <chee.hong.ang@intel.com>
Date: Thu, 24 Dec 2020 18:21:08 +0800
Subject: [PATCH] arm: socfpga: mailbox: Add 'SYSTEM_RESET' PSCI support to
 mbox_reset_cold()

mbox_reset_cold() will invoke ATF's PSCI service when running in
non-secure mode (EL2).

Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
---
 arch/arm/mach-socfpga/mailbox_s10.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-socfpga/mailbox_s10.c b/arch/arm/mach-socfpga/mailbox_s10.c
index 18d44924e6..429444f069 100644
--- a/arch/arm/mach-socfpga/mailbox_s10.c
+++ b/arch/arm/mach-socfpga/mailbox_s10.c
@@ -11,6 +11,7 @@
 #include <asm/arch/mailbox_s10.h>
 #include <asm/arch/system_manager.h>
 #include <asm/secure.h>
+#include <asm/system.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -398,6 +399,9 @@ error:
 
 int mbox_reset_cold(void)
 {
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_ATF)
+	psci_system_reset();
+#else
 	int ret;
 
 	ret = mbox_send_cmd(MBOX_ID_UBOOT, MBOX_REBOOT_HPS, MBOX_CMD_DIRECT,
@@ -406,6 +410,7 @@ int mbox_reset_cold(void)
 		/* mailbox sent failure, wait for watchdog to kick in */
 		hang();
 	}
+#endif
 	return 0;
 }