From 50cd8646c58e68c0ff96e43724fe6029b459e4a4 Mon Sep 17 00:00:00 2001
From: Varun Wadekar <vwadekar@nvidia.com>
Date: Mon, 28 Dec 2015 18:12:59 -0800
Subject: [PATCH] Tegra186: register FIQ interrupt sources

This patch registers all the FIQ interrupt sources during platform
setup. Currently we support AON and TOP watchdog timer interrupts.

Change-Id: Ibccd866f00d6b08b574f765538525f95b49c5549
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
---
 plat/nvidia/tegra/include/t186/tegra_def.h  | 10 +++++-
 plat/nvidia/tegra/soc/t186/plat_setup.c     | 40 +++++++++++++++++++++
 plat/nvidia/tegra/soc/t186/plat_sip_calls.c |  1 -
 3 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/plat/nvidia/tegra/include/t186/tegra_def.h b/plat/nvidia/tegra/include/t186/tegra_def.h
index e74ed166f..0732993d9 100644
--- a/plat/nvidia/tegra/include/t186/tegra_def.h
+++ b/plat/nvidia/tegra/include/t186/tegra_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -65,6 +65,14 @@
 					 ACTLR_EL3_CPUECTLR_BIT | \
 					 ACTLR_EL3_CPUACTLR_BIT)
 
+/*******************************************************************************
+ * Secure IRQ definitions
+ ******************************************************************************/
+#define TEGRA186_TOP_WDT_IRQ		49
+#define TEGRA186_AON_WDT_IRQ		50
+
+#define TEGRA186_SEC_IRQ_TARGET_MASK	0xF3 /* 4 A57 - 2 Denver */
+
 /*******************************************************************************
  * Tegra Miscellanous register constants
  ******************************************************************************/
diff --git a/plat/nvidia/tegra/soc/t186/plat_setup.c b/plat/nvidia/tegra/soc/t186/plat_setup.c
index 0496f5a5e..44faefef0 100644
--- a/plat/nvidia/tegra/soc/t186/plat_setup.c
+++ b/plat/nvidia/tegra/soc/t186/plat_setup.c
@@ -28,8 +28,18 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <arch_helpers.h>
+#include <assert.h>
+#include <bl_common.h>
 #include <console.h>
+#include <context.h>
+#include <context_mgmt.h>
+#include <debug.h>
+#include <denver.h>
+#include <interrupt_mgmt.h>
+#include <platform.h>
 #include <tegra_def.h>
+#include <tegra_private.h>
 #include <xlat_tables.h>
 
 /*******************************************************************************
@@ -120,3 +130,33 @@ uint32_t plat_get_console_from_id(int id)
 
 	return tegra186_uart_addresses[id];
 }
+
+/* Secure IRQs for Tegra186 */
+static const irq_sec_cfg_t tegra186_sec_irqs[] = {
+	{
+		TEGRA186_TOP_WDT_IRQ,
+		TEGRA186_SEC_IRQ_TARGET_MASK,
+		INTR_TYPE_EL3,
+	},
+	{
+		TEGRA186_AON_WDT_IRQ,
+		TEGRA186_SEC_IRQ_TARGET_MASK,
+		INTR_TYPE_EL3,
+	},
+};
+
+/*******************************************************************************
+ * Initialize the GIC and SGIs
+ ******************************************************************************/
+void plat_gic_setup(void)
+{
+	tegra_gic_setup(tegra186_sec_irqs,
+		sizeof(tegra186_sec_irqs) / sizeof(tegra186_sec_irqs[0]));
+
+	/*
+	 * Initialize the FIQ handler only if the platform supports any
+	 * FIQ interrupt sources.
+	 */
+	if (sizeof(tegra186_sec_irqs) > 0)
+		tegra_fiq_handler_setup();
+}
diff --git a/plat/nvidia/tegra/soc/t186/plat_sip_calls.c b/plat/nvidia/tegra/soc/t186/plat_sip_calls.c
index 66a433e94..8b340a190 100644
--- a/plat/nvidia/tegra/soc/t186/plat_sip_calls.c
+++ b/plat/nvidia/tegra/soc/t186/plat_sip_calls.c
@@ -134,7 +134,6 @@ int plat_sip_handler(uint32_t smc_fid,
 		return 0;
 
 	default:
-		ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
 		break;
 	}