[PATCH v4 20/21] arm: socfpga: mailbox: Add 'SYSTEM_RESET' PSCI support to mbox_reset_cold()

[chee.hong.ang at intel.com]

From: Chee Hong Ang <chee.hong.ang at intel.com>

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 at intel.com>
---
 arch/arm/mach-socfpga/mailbox_s10.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-socfpga/mailbox_s10.c b/arch/arm/mach-socfpga/mailbox_s10.c
index f30e7f8..6b39576 100644
--- a/arch/arm/mach-socfpga/mailbox_s10.c
+++ b/arch/arm/mach-socfpga/mailbox_s10.c
@@ -330,6 +330,9 @@ 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,
@@ -338,6 +341,7 @@ int mbox_reset_cold(void)
 		/* mailbox sent failure, wait for watchdog to kick in */
 		hang();
 	}
+#endif
 	return 0;
 }
 
-- 
2.7.4