Tegra194: config to enable/disable strict checking mode

This patch adds a new configuration option to the platform makefiles
that disables/enables strict checking mode. The config is enabled
by default.

Change-Id: I727dd0facee88d9517bf6956eaf9163eba25c8bb
Signed-off-by: Steven Kao <skao@nvidia.com>

plat/nvidia/tegra/soc/t194/drivers/mce/mce.c

 /*
- * Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -186,6 +186,7 @@ void mce_verify_firmware_version(void)
 	}
 }
 
+#if ENABLE_STRICT_CHECKING_MODE
 /*******************************************************************************
  * Handler to enable the strict checking mode
  ******************************************************************************/
@@ -235,3 +236,4 @@ void mce_enable_strict_checking(void)
 		nvg_enable_strict_checking_mode();
 	}
 }
+#endif

plat/nvidia/tegra/soc/t194/drivers/mce/nvg.c

@@ -288,6 +288,7 @@ int32_t nvg_enter_cstate(uint32_t state, uint32_t wake_time)
 	return ret;
 }
 
+#if ENABLE_STRICT_CHECKING_MODE
 /*
  * Enable strict checking mode
  *
@@ -300,3 +301,4 @@ void nvg_enable_strict_checking_mode(void)
 
 	nvg_set_request_data(TEGRA_NVG_CHANNEL_SECURITY_CONFIG, params);
 }
+#endif

plat/nvidia/tegra/soc/t194/plat_psci_handlers.c

@@ -357,11 +357,13 @@ int32_t tegra_soc_pwr_domain_on_finish(const psci_power_state_t *target_state)
 	 */
 	if (stateid_afflvl2 == PSTATE_ID_SOC_POWERDN) {
 
+#if ENABLE_STRICT_CHECKING_MODE
 		/*
 		 * Enable strict checking after programming the GSC for
 		 * enabling TZSRAM and TZDRAM
 		 */
 		mce_enable_strict_checking();
+#endif
 
 		/* Init SMMU */
 		tegra_smmu_init();

plat/nvidia/tegra/soc/t194/plat_setup.c

@@ -293,9 +293,11 @@ plat_params_from_bl2_t *plat_get_bl31_plat_params(void)
 
 void plat_late_platform_setup(void)
 {
+#if ENABLE_STRICT_CHECKING_MODE
 	/*
 	 * Enable strict checking after programming the GSC for
 	 * enabling TZSRAM and TZDRAM
 	 */
 	mce_enable_strict_checking();
+#endif
 }

plat/nvidia/tegra/soc/t194/platform_t194.mk

@@ -8,6 +8,9 @@
 ENABLE_CONSOLE_SPE			:= 0
 $(eval $(call add_define,ENABLE_CONSOLE_SPE))
 
+ENABLE_STRICT_CHECKING_MODE	:= 1
+$(eval $(call add_define,ENABLE_STRICT_CHECKING_MODE))
+
 RESET_TO_BL31				:= 1
 
 PROGRAMMABLE_RESET_ADDRESS		:= 1