Tegra: compile PMC driver for Tegra132/Tegra210 platforms

The PMC driver is used only by Tegra210 and Tegra132 platforms. This
patch removes pmc.c from the common makefile and moves it to the
platform specific makefiles.

As a result, the PMC code from common code has been moved to Tegra132
and Tegra210 platform ports.

Change-Id: Ia157f70e776b3eff3c12eb8f0f02d30102670a98
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

plat/nvidia/tegra/common/tegra_common.mk

@@ -25,7 +25,6 @@ BL31_SOURCES		+=	drivers/delay_timer/delay_timer.c		\
 				plat/common/aarch64/crash_console_helpers.S	\
 				${TEGRA_GICv2_SOURCES}				\
 				${COMMON_DIR}/aarch64/tegra_helpers.S		\
-				${COMMON_DIR}/drivers/pmc/pmc.c			\
 				${COMMON_DIR}/lib/debug/profiler.c		\
 				${COMMON_DIR}/tegra_bl31_setup.c		\
 				${COMMON_DIR}/tegra_delay_timer.c		\

plat/nvidia/tegra/common/tegra_pm.c

@@ -221,10 +221,10 @@ __dead2 void tegra_system_reset(void)
 	/* per-SoC system reset handler */
 	(void)tegra_soc_prepare_system_reset();
 
-	/*
-	 * Program the PMC in order to restart the system.
-	 */
-	tegra_pmc_system_reset();
+	/* wait for the system to reset */
+	for (;;) {
+		;
+	}
 }
 
 /*******************************************************************************

plat/nvidia/tegra/soc/t132/plat_psci_handlers.c

@@ -193,6 +193,11 @@ int tegra_soc_prepare_system_reset(void)
 	/* Wait 1 ms to make sure clock source/device logic is stabilized. */
 	mdelay(1);
 
+	/*
+	 * Program the PMC in order to restart the system.
+	 */
+	tegra_pmc_system_reset();
+
 	return PSCI_E_SUCCESS;
 }
 

plat/nvidia/tegra/soc/t132/platform_t132.mk

 #
 # Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -23,6 +24,7 @@ BL31_SOURCES		+=	drivers/ti/uart/aarch64/16550_console.S		\
 				lib/cpus/aarch64/denver.S		\
 				${COMMON_DIR}/drivers/flowctrl/flowctrl.c	\
 				${COMMON_DIR}/drivers/memctrl/memctrl_v1.c	\
+				${COMMON_DIR}/drivers/pmc/pmc.c			\
 				${SOC_DIR}/plat_psci_handlers.c		\
 				${SOC_DIR}/plat_sip_calls.c		\
 				${SOC_DIR}/plat_setup.c			\

plat/nvidia/tegra/soc/t210/plat_psci_handlers.c

@@ -579,6 +579,11 @@ int tegra_soc_prepare_system_reset(void)
 	/* Wait 1 ms to make sure clock source/device logic is stabilized. */
 	mdelay(1);
 
+	/*
+	 * Program the PMC in order to restart the system.
+	 */
+	tegra_pmc_system_reset();
+
 	return PSCI_E_SUCCESS;
 }
 

plat/nvidia/tegra/soc/t210/platform_t210.mk

 #
 # Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -33,6 +34,7 @@ BL31_SOURCES		+=	drivers/ti/uart/aarch64/16550_console.S		\
 				${COMMON_DIR}/drivers/bpmp/bpmp.c		\
 				${COMMON_DIR}/drivers/flowctrl/flowctrl.c	\
 				${COMMON_DIR}/drivers/memctrl/memctrl_v1.c	\
+				${COMMON_DIR}/drivers/pmc/pmc.c			\
 				${SOC_DIR}/plat_psci_handlers.c			\
 				${SOC_DIR}/plat_setup.c				\
 				${SOC_DIR}/drivers/se/security_engine.c		\