Merge pull request #575 from soby-mathew/sm/new_tzc_driver

Refactor the TZC driver and add DMC-500 driver

drivers/arm/tzc/tzc400.c

+/*
+ * Copyright (c) 2016, 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <assert.h>
+#include <debug.h>
+#include <mmio.h>
+#include <stddef.h>
+#include <tzc400.h>
+#include "tzc_common_private.c"
+
+/*
+ * Macros which will be used by common core functions.
+ */
+#define TZC_400_REGION_BASE_LOW_0_OFFSET	0x100
+#define TZC_400_REGION_BASE_HIGH_0_OFFSET	0x104
+#define TZC_400_REGION_TOP_LOW_0_OFFSET		0x108
+#define TZC_400_REGION_TOP_HIGH_0_OFFSET	0x10c
+#define TZC_400_REGION_ATTR_0_OFFSET		0x110
+#define TZC_400_REGION_ID_ACCESS_0_OFFSET	0x114
+
+/*
+ * Implementation defined values used to validate inputs later.
+ * Filters : max of 4 ; 0 to 3
+ * Regions : max of 9 ; 0 to 8
+ * Address width : Values between 32 to 64
+ */
+typedef struct tzc400_instance {
+	uintptr_t base;
+	uint8_t addr_width;
+	uint8_t num_filters;
+	uint8_t num_regions;
+} tzc400_instance_t;
+
+tzc400_instance_t tzc400;
+
+static inline unsigned int _tzc400_read_build_config(uintptr_t base)
+{
+	return mmio_read_32(base + BUILD_CONFIG_OFF);
+}
+
+static inline unsigned int _tzc400_read_gate_keeper(uintptr_t base)
+{
+	return mmio_read_32(base + GATE_KEEPER_OFF);
+}
+
+static inline void _tzc400_write_gate_keeper(uintptr_t base, unsigned int val)
+{
+	mmio_write_32(base + GATE_KEEPER_OFF, val);
+}
+
+/*
+ * Get the open status information for all filter units.
+ */
+#define get_gate_keeper_os(base)	((_tzc400_read_gate_keeper(base) >>	\
+					GATE_KEEPER_OS_SHIFT) &		\
+					GATE_KEEPER_OS_MASK)
+
+
+/* Define common core functions used across different TZC peripherals. */
+DEFINE_TZC_COMMON_WRITE_ACTION(400, 400)
+DEFINE_TZC_COMMON_WRITE_REGION_BASE(400, 400)
+DEFINE_TZC_COMMON_WRITE_REGION_TOP(400, 400)
+DEFINE_TZC_COMMON_WRITE_REGION_ATTRIBUTES(400, 400)
+DEFINE_TZC_COMMON_WRITE_REGION_ID_ACCESS(400, 400)
+DEFINE_TZC_COMMON_CONFIGURE_REGION0(400)
+DEFINE_TZC_COMMON_CONFIGURE_REGION(400)
+
+static unsigned int _tzc400_get_gate_keeper(uintptr_t base,
+				unsigned int filter)
+{
+	unsigned int open_status;
+
+	open_status = get_gate_keeper_os(base);
+
+	return (open_status >> filter) & GATE_KEEPER_FILTER_MASK;
+}
+
+/* This function is not MP safe. */
+static void _tzc400_set_gate_keeper(uintptr_t base,
+				unsigned int filter,
+				int val)
+{
+	unsigned int open_status;
+
+	/* Upper half is current state. Lower half is requested state. */
+	open_status = get_gate_keeper_os(base);
+
+	if (val)
+		open_status |=  (1 << filter);
+	else
+		open_status &= ~(1 << filter);
+
+	_tzc400_write_gate_keeper(base, (open_status & GATE_KEEPER_OR_MASK) <<
+			      GATE_KEEPER_OR_SHIFT);
+
+	/* Wait here until we see the change reflected in the TZC status. */
+	while ((get_gate_keeper_os(base)) != open_status)
+		;
+}
+
+void tzc400_set_action(tzc_action_t action)
+{
+	assert(tzc400.base);
+	assert(action <= TZC_ACTION_ERR_INT);
+
+	/*
+	 * - Currently no handler is provided to trap an error via interrupt
+	 *   or exception.
+	 * - The interrupt action has not been tested.
+	 */
+	_tzc400_write_action(tzc400.base, action);
+}
+
+void tzc400_init(uintptr_t base)
+{
+#if DEBUG
+	unsigned int tzc400_id;
+#endif
+	unsigned int tzc400_build;
+
+	assert(base);
+	tzc400.base = base;
+
+#if DEBUG
+	tzc400_id = _tzc_read_peripheral_id(base);
+	if (tzc400_id != TZC_400_PERIPHERAL_ID) {
+		ERROR("TZC-400 : Wrong device ID (0x%x).\n", tzc400_id);
+		panic();
+	}
+#endif
+
+	/* Save values we will use later. */
+	tzc400_build = _tzc400_read_build_config(tzc400.base);
+	tzc400.num_filters = ((tzc400_build >> BUILD_CONFIG_NF_SHIFT) &
+			   BUILD_CONFIG_NF_MASK) + 1;
+	tzc400.addr_width  = ((tzc400_build >> BUILD_CONFIG_AW_SHIFT) &
+			   BUILD_CONFIG_AW_MASK) + 1;
+	tzc400.num_regions = ((tzc400_build >> BUILD_CONFIG_NR_SHIFT) &
+			   BUILD_CONFIG_NR_MASK) + 1;
+}
+
+/*
+ * `tzc400_configure_region0` is used to program region 0 into the TrustZone
+ * controller. Region 0 covers the whole address space that is not mapped
+ * to any other region, and is enabled on all filters; this cannot be
+ * changed. This function only changes the access permissions.
+ */
+void tzc400_configure_region0(tzc_region_attributes_t sec_attr,
+			   unsigned int ns_device_access)
+{
+	assert(tzc400.base);
+	assert(sec_attr <= TZC_REGION_S_RDWR);
+
+	_tzc400_configure_region0(tzc400.base, sec_attr, ns_device_access);
+}
+
+/*
+ * `tzc400_configure_region` is used to program regions into the TrustZone
+ * controller. A region can be associated with more than one filter. The
+ * associated filters are passed in as a bitmap (bit0 = filter0).
+ * NOTE:
+ * Region 0 is special; it is preferable to use tzc400_configure_region0
+ * for this region (see comment for that function).
+ */
+void tzc400_configure_region(unsigned int filters,
+			  int region,
+			  uintptr_t region_base,
+			  uintptr_t region_top,
+			  tzc_region_attributes_t sec_attr,
+			  unsigned int nsaid_permissions)
+{
+	assert(tzc400.base);
+
+	/* Do range checks on filters and regions. */
+	assert(((filters >> tzc400.num_filters) == 0) &&
+	       (region >= 0) && (region < tzc400.num_regions));
+
+	/*
+	 * Do address range check based on TZC configuration. A 64bit address is
+	 * the max and expected case.
+	 */
+	assert(((region_top <= (UINT64_MAX >> (64 - tzc400.addr_width))) &&
+		(region_base < region_top)));
+
+	/* region_base and (region_top + 1) must be 4KB aligned */
+	assert(((region_base | (region_top + 1)) & (4096 - 1)) == 0);
+
+	assert(sec_attr <= TZC_REGION_S_RDWR);
+
+	_tzc400_configure_region(tzc400.base, filters, region, region_base,
+						region_top,
+						sec_attr, nsaid_permissions);
+}
+
+void tzc400_enable_filters(void)
+{
+	unsigned int state;
+	unsigned int filter;
+
+	assert(tzc400.base);
+
+	for (filter = 0; filter < tzc400.num_filters; filter++) {
+		state = _tzc400_get_gate_keeper(tzc400.base, filter);
+		if (state) {
+			/* The TZC filter is already configured. Changing the
+			 * programmer's view in an active system can cause
+			 * unpredictable behavior therefore panic for now rather
+			 * than try to determine whether this is safe in this
+			 * instance. See:
+			 * http://infocenter.arm.com/help/index.jsp?\
+			 * topic=/com.arm.doc.ddi0504c/CJHHECBF.html */
+			ERROR("TZC-400 : Filter %d Gatekeeper already"
+				" enabled.\n", filter);
+			panic();
+		}
+		_tzc400_set_gate_keeper(tzc400.base, filter, 1);
+	}
+}
+
+void tzc400_disable_filters(void)
+{
+	unsigned int filter;
+
+	assert(tzc400.base);
+
+	/*
+	 * We don't do the same state check as above as the Gatekeepers are
+	 * disabled after reset.
+	 */
+	for (filter = 0; filter < tzc400.num_filters; filter++)
+		_tzc400_set_gate_keeper(tzc400.base, filter, 0);
+}

drivers/arm/tzc/tzc_common_private.c

+/*
+ * Copyright (c) 2016, 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <mmio.h>
+#include <tzc_common.h>
+
+#define DEFINE_TZC_COMMON_WRITE_ACTION(fn_name, macro_name)		\
+	static inline void _tzc##fn_name##_write_action(		\
+					uintptr_t base,			\
+					tzc_action_t action)		\
+	{								\
+		mmio_write_32(base + TZC_##macro_name##_ACTION_OFF,	\
+			action);					\
+	}
+
+#define DEFINE_TZC_COMMON_WRITE_REGION_BASE(fn_name, macro_name)	\
+	static inline void _tzc##fn_name##_write_region_base(		\
+						uintptr_t base,		\
+						int region_no,		\
+						uintptr_t region_base)	\
+	{								\
+		mmio_write_32(base +					\
+			TZC_REGION_OFFSET(				\
+				TZC_##macro_name##_REGION_SIZE,		\
+				region_no) +				\
+				TZC_##macro_name##_REGION_BASE_LOW_0_OFFSET,	\
+			(unsigned int)region_base);			\
+		mmio_write_32(base +					\
+			TZC_REGION_OFFSET(				\
+				TZC_##macro_name##_REGION_SIZE,		\
+				region_no) +				\
+			TZC_##macro_name##_REGION_BASE_HIGH_0_OFFSET,	\
+			(unsigned int)(region_base >> 32));		\
+	}
+
+#define DEFINE_TZC_COMMON_WRITE_REGION_TOP(fn_name, macro_name)		\
+	static inline void _tzc##fn_name##_write_region_top(		\
+						uintptr_t base,		\
+						int region_no,		\
+						uintptr_t region_top)	\
+	{								\
+		mmio_write_32(base +					\
+			TZC_REGION_OFFSET				\
+				(TZC_##macro_name##_REGION_SIZE,	\
+				region_no) +				\
+			TZC_##macro_name##_REGION_TOP_LOW_0_OFFSET,	\
+			(unsigned int)region_top);			\
+		mmio_write_32(base +					\
+			TZC_REGION_OFFSET(				\
+				TZC_##macro_name##_REGION_SIZE,		\
+				region_no) +				\
+			TZC_##macro_name##_REGION_TOP_HIGH_0_OFFSET,	\
+			(unsigned int)(region_top >> 32));		\
+	}
+
+#define DEFINE_TZC_COMMON_WRITE_REGION_ATTRIBUTES(fn_name, macro_name)	\
+	static inline void _tzc##fn_name##_write_region_attributes(	\
+						uintptr_t base,		\
+						int region_no,		\
+						unsigned int attr)	\
+	{								\
+		mmio_write_32(base +					\
+			TZC_REGION_OFFSET(				\
+				TZC_##macro_name##_REGION_SIZE,		\
+				region_no) +				\
+			TZC_##macro_name##_REGION_ATTR_0_OFFSET,	\
+			attr);						\
+	}
+
+#define DEFINE_TZC_COMMON_WRITE_REGION_ID_ACCESS(fn_name, macro_name)	\
+	static inline void _tzc##fn_name##_write_region_id_access(	\
+						uintptr_t base,		\
+						int region_no,		\
+						unsigned int val)	\
+	{								\
+		mmio_write_32(base +					\
+			TZC_REGION_OFFSET(				\
+				TZC_##macro_name##_REGION_SIZE,		\
+				region_no) +				\
+			TZC_##macro_name##_REGION_ID_ACCESS_0_OFFSET,	\
+			val);						\
+	}
+
+/*
+ * It is used to program region 0 ATTRIBUTES and ACCESS register.
+ */
+#define DEFINE_TZC_COMMON_CONFIGURE_REGION0(fn_name)			\
+	void _tzc##fn_name##_configure_region0(uintptr_t base,		\
+			   tzc_region_attributes_t sec_attr,		\
+			   unsigned int ns_device_access)		\
+	{								\
+		assert(base);						\
+		VERBOSE("TrustZone : Configuring region 0 "		\
+			"(TZC Interface Base=%p sec_attr=0x%x,"		\
+			" ns_devs=0x%x)\n", (void *)base,		\
+			sec_attr, ns_device_access);			\
+									\
+		/* Set secure attributes on region 0 */			\
+		_tzc##fn_name##_write_region_attributes(base, 0,	\
+			sec_attr << TZC_REGION_ATTR_SEC_SHIFT);		\
+									\
+		/***************************************************/	\
+		/* Specify which non-secure devices have permission*/	\
+		/* to access region 0.				   */	\
+		/***************************************************/	\
+		_tzc##fn_name##_write_region_id_access(base,		\
+						0,			\
+						ns_device_access);	\
+	}
+
+/*
+ * It is used to program a region from 1 to 8 in the TrustZone controller.
+ * NOTE:
+ * Region 0 is special; it is preferable to use
+ * ##fn_name##_configure_region0 for this region (see comment for
+ * that function).
+ */
+#define DEFINE_TZC_COMMON_CONFIGURE_REGION(fn_name)			\
+	void _tzc##fn_name##_configure_region(uintptr_t base,		\
+				unsigned int filters,			\
+				int region_no,				\
+				uintptr_t region_base,			\
+				uintptr_t region_top,			\
+				tzc_region_attributes_t sec_attr,	\
+				unsigned int nsaid_permissions)	\
+	{								\
+		assert(base);						\
+		VERBOSE("TrustZone : Configuring region "		\
+			"(TZC Interface Base: %p, region_no = %d)"	\
+			"...\n", (void *)base, region_no);		\
+		VERBOSE("TrustZone : ... base = %p, top = %p,"		\
+			"\n", (void *)region_base, (void *)region_top);\
+		VERBOSE("TrustZone : ... sec_attr = 0x%x,"		\
+			" ns_devs = 0x%x)\n",				\
+			sec_attr, nsaid_permissions);			\
+									\
+		/***************************************************/	\
+		/* Inputs look ok, start programming registers.    */	\
+		/* All the address registers are 32 bits wide and  */	\
+		/* have a LOW and HIGH				   */	\
+		/* component used to construct an address up to a  */	\
+		/* 64bit.					   */	\
+		/***************************************************/	\
+		_tzc##fn_name##_write_region_base(base,			\
+					region_no, region_base);	\
+		_tzc##fn_name##_write_region_top(base,			\
+					region_no, region_top);		\
+									\
+		/* Enable filter to the region and set secure attributes */\
+		_tzc##fn_name##_write_region_attributes(base,		\
+				region_no,				\
+				(sec_attr << TZC_REGION_ATTR_SEC_SHIFT) |\
+				(filters << TZC_REGION_ATTR_F_EN_SHIFT));\
+									\
+		/***************************************************/	\
+		/* Specify which non-secure devices have permission*/	\
+		/* to access this region.			   */	\
+		/***************************************************/	\
+		_tzc##fn_name##_write_region_id_access(base,		\
+						region_no,		\
+						nsaid_permissions);	\
+	}
+
+#if DEBUG
+static unsigned int _tzc_read_peripheral_id(uintptr_t base)
+{
+	unsigned int id;
+
+	id = mmio_read_32(base + PID0_OFF);
+	/* Masks DESC part in PID1 */
+	id |= ((mmio_read_32(base + PID1_OFF) & 0xF) << 8);
+
+	return id;
+}
+#endif

drivers/arm/tzc/tzc_dmc500.c

+/*
+ * Copyright (c) 2016, 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <assert.h>
+#include <debug.h>
+#include <mmio.h>
+#include <tzc_dmc500.h>
+#include "tzc_common.h"
+#include "tzc_common_private.c"
+
+/*
+ * Macros which will be used by common core functions.
+ */
+#define TZC_DMC500_REGION_BASE_LOW_0_OFFSET		0x054
+#define TZC_DMC500_REGION_BASE_HIGH_0_OFFSET		0x058
+#define TZC_DMC500_REGION_TOP_LOW_0_OFFSET		0x05C
+#define TZC_DMC500_REGION_TOP_HIGH_0_OFFSET		0x060
+#define TZC_DMC500_REGION_ATTR_0_OFFSET			0x064
+#define TZC_DMC500_REGION_ID_ACCESS_0_OFFSET		0x068
+
+#define TZC_DMC500_ACTION_OFF				0x50
+
+/* Pointer to the tzc_dmc500_driver_data structure populated by the platform */
+static const tzc_dmc500_driver_data_t *g_driver_data;
+
+#define verify_region_attr(region, attr)	\
+		((g_conf_regions[(region)].sec_attr ==			\
+			((attr) >> TZC_REGION_ATTR_SEC_SHIFT))		\
+		&& ((attr) & (0x1 << TZC_REGION_ATTR_F_EN_SHIFT)))
+
+/*
+ * Structure for configured regions attributes in DMC500.
+ */
+typedef struct tzc_dmc500_regions {
+	tzc_region_attributes_t sec_attr;
+	int is_enabled;
+} tzc_dmc500_regions_t;
+
+/*
+ * Array storing the attributes of the configured regions. This array
+ * will be used by the `tzc_dmc500_verify_complete` to verify the flush
+ * completion.
+ */
+static tzc_dmc500_regions_t g_conf_regions[MAX_REGION_VAL + 1];
+
+/* Helper Macros for making the code readable */
+#define DMC_INST_BASE_ADDR(instance) (g_driver_data->dmc_base[instance])
+#define DMC_INST_SI_BASE(instance, interface) \
+		(DMC_INST_BASE_ADDR(instance) + IFACE_OFFSET(interface))
+
+DEFINE_TZC_COMMON_WRITE_ACTION(_dmc500, DMC500)
+DEFINE_TZC_COMMON_WRITE_REGION_BASE(_dmc500, DMC500)
+DEFINE_TZC_COMMON_WRITE_REGION_TOP(_dmc500, DMC500)
+DEFINE_TZC_COMMON_WRITE_REGION_ATTRIBUTES(_dmc500, DMC500)
+DEFINE_TZC_COMMON_WRITE_REGION_ID_ACCESS(_dmc500, DMC500)
+
+DEFINE_TZC_COMMON_CONFIGURE_REGION0(_dmc500)
+DEFINE_TZC_COMMON_CONFIGURE_REGION(_dmc500)
+
+static inline unsigned int _tzc_dmc500_read_region_attr_0(
+					uintptr_t dmc_si_base,
+					int region_no)
+{
+	return mmio_read_32(dmc_si_base +
+			TZC_REGION_OFFSET(TZC_DMC500_REGION_SIZE, region_no) +
+			TZC_DMC500_REGION_ATTR_0_OFFSET);
+}
+
+static inline void _tzc_dmc500_write_flush_control(uintptr_t dmc_si_base)
+{
+	mmio_write_32(dmc_si_base + SI_FLUSH_CTRL_OFFSET, 1);
+}
+
+/*
+ * Sets the Flush controls for all the DMC Instances and System Interfaces.
+ * This initiates the flush of configuration settings from the shadow
+ * registers to the actual configuration register. The caller should poll
+ * changed register to confirm update.
+ */
+void tzc_dmc500_config_complete(void)
+{
+	int dmc_inst, sys_if;
+
+	assert(g_driver_data);
+
+	for (dmc_inst = 0; dmc_inst < g_driver_data->dmc_count; dmc_inst++) {
+		assert(DMC_INST_BASE_ADDR(dmc_inst));
+		for (sys_if = 0; sys_if < MAX_SYS_IF_COUNT; sys_if++)
+			_tzc_dmc500_write_flush_control(
+					DMC_INST_SI_BASE(dmc_inst, sys_if));
+	}
+}
+
+/*
+ * This function reads back the secure attributes from the configuration
+ * register for each DMC Instance and System Interface and compares it with
+ * the configured value. The successful verification of the region attributes
+ * confirms that the flush operation has completed.
+ * If the verification fails, the caller is expected to invoke this API again
+ * till it succeeds.
+ * Returns 0 on success and 1 on failure.
+ */
+int tzc_dmc500_verify_complete(void)
+{
+	int dmc_inst, sys_if, region_no;
+	unsigned int attr;
+
+	assert(g_driver_data);
+	/* Region 0 must be configured */
+	assert(g_conf_regions[0].is_enabled);
+
+	/* Iterate over all configured regions */
+	for (region_no = 0; region_no <= MAX_REGION_VAL; region_no++) {
+		if (!g_conf_regions[region_no].is_enabled)
+			continue;
+		for (dmc_inst = 0; dmc_inst < g_driver_data->dmc_count;
+								dmc_inst++) {
+			assert(DMC_INST_BASE_ADDR(dmc_inst));
+			for (sys_if = 0; sys_if < MAX_SYS_IF_COUNT;
+							sys_if++) {
+				attr = _tzc_dmc500_read_region_attr_0(
+					DMC_INST_SI_BASE(dmc_inst, sys_if),
+					region_no);
+				VERBOSE("Verifying DMC500 region:%d"
+					" dmc_inst:%d sys_if:%d attr:%x\n",
+					region_no, dmc_inst, sys_if, attr);
+				if (!verify_region_attr(region_no, attr))
+					return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * `tzc_dmc500_configure_region0` is used to program region 0 in both the
+ * system interfaces of all the DMC-500 instances. Region 0 covers the whole
+ * address space that is not mapped to any other region for a system interface,
+ * and is always enabled; this cannot be changed. This function only changes
+ * the access permissions.
+ */
+void tzc_dmc500_configure_region0(tzc_region_attributes_t sec_attr,
+					unsigned int nsaid_permissions)
+{
+	int dmc_inst, sys_if;
+
+	/* Assert if DMC-500 is not initialized */
+	assert(g_driver_data);
+
+	/* Configure region_0 in all DMC instances */
+	for (dmc_inst = 0; dmc_inst < g_driver_data->dmc_count; dmc_inst++) {
+		assert(DMC_INST_BASE_ADDR(dmc_inst));
+		for (sys_if = 0; sys_if < MAX_SYS_IF_COUNT; sys_if++)
+			_tzc_dmc500_configure_region0(
+					DMC_INST_SI_BASE(dmc_inst, sys_if),
+					sec_attr, nsaid_permissions);
+	}
+
+	g_conf_regions[0].sec_attr = sec_attr;
+	g_conf_regions[0].is_enabled = 1;
+}
+
+/*
+ * `tzc_dmc500_configure_region` is used to program a region into all system
+ * interfaces of all the DMC instances.
+ * NOTE:
+ * Region 0 is special; it is preferable to use tzc_dmc500_configure_region0
+ * for this region (see comment for that function).
+ */
+void tzc_dmc500_configure_region(int region_no,
+			uintptr_t region_base,
+			uintptr_t region_top,
+			tzc_region_attributes_t sec_attr,
+			unsigned int nsaid_permissions)
+{
+	int dmc_inst, sys_if;
+
+	assert(g_driver_data);
+	/* Do range checks on regions. */
+	assert(region_no >= 0 && region_no <= MAX_REGION_VAL);
+
+	/*
+	 * Do address range check based on DMC-TZ configuration. A 43bit address
+	 * is the max and expected case.
+	 */
+	assert(((region_top <= (UINT64_MAX >> (64 - 43))) &&
+		(region_base < region_top)));
+
+	/* region_base and (region_top + 1) must be 4KB aligned */
+	assert(((region_base | (region_top + 1)) & (4096 - 1)) == 0);
+
+	for (dmc_inst = 0; dmc_inst < g_driver_data->dmc_count; dmc_inst++) {
+		assert(DMC_INST_BASE_ADDR(dmc_inst));
+		for (sys_if = 0; sys_if < MAX_SYS_IF_COUNT; sys_if++)
+			_tzc_dmc500_configure_region(
+					DMC_INST_SI_BASE(dmc_inst, sys_if),
+					TZC_DMC500_REGION_ATTR_F_EN_MASK,
+					region_no, region_base, region_top,
+					sec_attr, nsaid_permissions);
+	}
+
+	g_conf_regions[region_no].sec_attr = sec_attr;
+	g_conf_regions[region_no].is_enabled = 1;
+}
+
+/* Sets the action value for all the DMC instances */
+void tzc_dmc500_set_action(tzc_action_t action)
+{
+	int dmc_inst;
+
+	assert(g_driver_data);
+
+	for (dmc_inst = 0; dmc_inst < g_driver_data->dmc_count; dmc_inst++) {
+		assert(DMC_INST_BASE_ADDR(dmc_inst));
+		/*
+		 * - Currently no handler is provided to trap an error via
+		 *   interrupt or exception.
+		 * - The interrupt action has not been tested.
+		 */
+		_tzc_dmc500_write_action(DMC_INST_BASE_ADDR(dmc_inst), action);
+	}
+}
+
+/*
+ * A DMC-500 instance must be present at each base address provided by the
+ * platform. It also expects platform to pass at least one instance of
+ * DMC-500.
+ */
+static void validate_plat_driver_data(
+			const tzc_dmc500_driver_data_t *plat_driver_data)
+{
+#if DEBUG
+	int i;
+	unsigned int dmc_id;
+	uintptr_t dmc_base;
+
+	assert(plat_driver_data);
+	assert(plat_driver_data->dmc_count > 0 &&
+		(plat_driver_data->dmc_count <= MAX_DMC_COUNT));
+
+	for (i = 0; i < plat_driver_data->dmc_count; i++) {
+		dmc_base = plat_driver_data->dmc_base[i];
+		assert(dmc_base);
+
+		dmc_id = _tzc_read_peripheral_id(dmc_base);
+		assert(dmc_id == DMC500_PERIPHERAL_ID);
+	}
+#endif /* DEBUG */
+}
+
+
+/*
+ * Initializes the base address and count of DMC instances.
+ *
+ * Note : Only pointer to plat_driver_data is saved, so it is caller's
+ * responsibility to keep it valid until the driver is used.
+ */
+void tzc_dmc500_driver_init(const tzc_dmc500_driver_data_t *plat_driver_data)
+{
+	/* Check valid pointer is passed */
+	assert(plat_driver_data);
+
+	/*
+	 * NOTE: This driver expects the DMC-500 controller is already in
+	 * READY state. Hence, it uses the reconfiguration method for
+	 * programming TrustZone regions
+	 */
+	/* Validates the information passed by platform */
+	validate_plat_driver_data(plat_driver_data);
+	g_driver_data = plat_driver_data;
+}

drivers/arm/tzc400/tzc400.c

 /*
- * Copyright (c) 2014-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2016, 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:
@@ -28,313 +28,8 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <assert.h>
-#include <debug.h>
-#include <mmio.h>
-#include <stddef.h>
-#include <tzc400.h>
-
-/*
- * Implementation defined values used to validate inputs later.
- * Filters : max of 4 ; 0 to 3
- * Regions : max of 9 ; 0 to 8
- * Address width : Values between 32 to 64
- */
-typedef struct tzc_instance {
-	uintptr_t base;
-	uint8_t addr_width;
-	uint8_t num_filters;
-	uint8_t num_regions;
-} tzc_instance_t;
-
-tzc_instance_t tzc;
-
-
-static inline uint32_t tzc_read_build_config(uintptr_t base)
-{
-	return mmio_read_32(base + BUILD_CONFIG_OFF);
-}
-
-static inline uint32_t tzc_read_gate_keeper(uintptr_t base)
-{
-	return mmio_read_32(base + GATE_KEEPER_OFF);
-}
-
-static inline void tzc_write_gate_keeper(uintptr_t base, uint32_t val)
-{
-	mmio_write_32(base + GATE_KEEPER_OFF, val);
-}
-
-static inline void tzc_write_action(uintptr_t base, tzc_action_t action)
-{
-	mmio_write_32(base + ACTION_OFF, action);
-}
-
-static inline void tzc_write_region_base_low(uintptr_t base,
-					uint32_t region,
-					uint32_t val)
-{
-	mmio_write_32(base + REGION_BASE_LOW_OFF +
-		REGION_NUM_OFF(region), val);
-}
-
-static inline void tzc_write_region_base_high(uintptr_t base,
-					uint32_t region,
-					uint32_t val)
-{
-	mmio_write_32(base + REGION_BASE_HIGH_OFF +
-		REGION_NUM_OFF(region), val);
-}
-
-static inline void tzc_write_region_top_low(uintptr_t base,
-					uint32_t region,
-					uint32_t val)
-{
-	mmio_write_32(base + REGION_TOP_LOW_OFF +
-		REGION_NUM_OFF(region), val);
-}
-
-static inline void tzc_write_region_top_high(uintptr_t base,
-					uint32_t region,
-					uint32_t val)
-{
-	mmio_write_32(base + REGION_TOP_HIGH_OFF +
-		REGION_NUM_OFF(region), val);
-}
-
-static inline void tzc_write_region_attributes(uintptr_t base,
-					uint32_t region,
-					uint32_t val)
-{
-	mmio_write_32(base + REGION_ATTRIBUTES_OFF +
-		REGION_NUM_OFF(region), val);
-}
-
-static inline void tzc_write_region_id_access(uintptr_t base,
-					uint32_t region,
-					uint32_t val)
-{
-	mmio_write_32(base + REGION_ID_ACCESS_OFF +
-		REGION_NUM_OFF(region), val);
-}
-
-static unsigned int tzc_read_peripheral_id(uintptr_t base)
-{
-	unsigned int id;
-
-	id = mmio_read_8(base + PID0_OFF);
-	/* Masks jep106_id_3_0 part in PID1 */
-	id |= ((mmio_read_8(base + PID1_OFF) & 0xF) << 8);
-
-	return id;
-}
-
-static uint32_t tzc_get_gate_keeper(uintptr_t base, uint8_t filter)
-{
-	uint32_t tmp;
-
-	tmp = (tzc_read_gate_keeper(base) >> GATE_KEEPER_OS_SHIFT) &
-		GATE_KEEPER_OS_MASK;
-
-	return (tmp >> filter) & GATE_KEEPER_FILTER_MASK;
-}
-
-/* This function is not MP safe. */
-static void tzc_set_gate_keeper(uintptr_t base, uint8_t filter, uint32_t val)
-{
-	uint32_t tmp;
-
-	/* Upper half is current state. Lower half is requested state. */
-	tmp = (tzc_read_gate_keeper(base) >> GATE_KEEPER_OS_SHIFT) &
-		GATE_KEEPER_OS_MASK;
-
-	if (val)
-		tmp |=  (1 << filter);
-	else
-		tmp &= ~(1 << filter);
-
-	tzc_write_gate_keeper(base, (tmp & GATE_KEEPER_OR_MASK) <<
-			      GATE_KEEPER_OR_SHIFT);
-
-	/* Wait here until we see the change reflected in the TZC status. */
-	while (((tzc_read_gate_keeper(base) >> GATE_KEEPER_OS_SHIFT) &
-		GATE_KEEPER_OS_MASK) != tmp)
-	  ;
-}
-
-
-void tzc_init(uintptr_t base)
-{
-	unsigned int tzc_id;
-	unsigned int tzc_build;
-
-	assert(base);
-
-	tzc.base = base;
-
-	/*
-	 * We expect to see a tzc400. Check peripheral ID.
-	 */
-	tzc_id = tzc_read_peripheral_id(tzc.base);
-	if (tzc_id != TZC400_PERIPHERAL_ID) {
-		ERROR("TZC : Wrong device ID (0x%x).\n", tzc_id);
-		panic();
-	}
-
-	/* Save values we will use later. */
-	tzc_build = tzc_read_build_config(tzc.base);
-	tzc.num_filters = ((tzc_build >> BUILD_CONFIG_NF_SHIFT) &
-			   BUILD_CONFIG_NF_MASK) + 1;
-	tzc.addr_width  = ((tzc_build >> BUILD_CONFIG_AW_SHIFT) &
-			   BUILD_CONFIG_AW_MASK) + 1;
-	tzc.num_regions = ((tzc_build >> BUILD_CONFIG_NR_SHIFT) &
-			   BUILD_CONFIG_NR_MASK) + 1;
-}
-
-/*
- * `tzc_configure_region0` is used to program region 0 into the TrustZone
- * controller. Region 0 covers the whole address space that is not mapped
- * to any other region, and is enabled on all filters; this cannot be
- * changed. This function only changes the access permissions.
- */
-void tzc_configure_region0(tzc_region_attributes_t sec_attr,
-			   uint32_t ns_device_access)
-{
-	assert(tzc.base);
-
-	VERBOSE("TZC : Configuring region 0 (sec_attr=0x%x, ns_devs=0x%x)\n",
-		sec_attr, ns_device_access);
-
-	assert(sec_attr <= TZC_REGION_S_RDWR);
-
-	/* Set secure attributes on region 0 */
-	tzc_write_region_attributes(tzc.base, 0,
-		sec_attr << REG_ATTR_SEC_SHIFT);
-
-	/*
-	 * Specify which non-secure devices have permission to access
-	 * region 0.
-	 */
-	tzc_write_region_id_access(tzc.base, 0, ns_device_access);
-}
-
-
-/*
- * `tzc_configure_region` is used to program regions into the TrustZone
- * controller. A region can be associated with more than one filter. The
- * associated filters are passed in as a bitmap (bit0 = filter0).
- * NOTE:
- * Region 0 is special; it is preferable to use tzc_configure_region0
- * for this region (see comment for that function).
- */
-void tzc_configure_region(uint32_t filters,
-			  uint8_t  region,
-			  uint64_t region_base,
-			  uint64_t region_top,
-			  tzc_region_attributes_t sec_attr,
-			  uint32_t ns_device_access)
-{
-	assert(tzc.base);
-
-	VERBOSE("TZC : Configuring region (filters=0x%x, region=%d, ...\n",
-		filters, region);
-	VERBOSE("TZC : ... base=0x%lx, top=0x%lx, ...\n",
-		region_base, region_top);
-	VERBOSE("TZC : ... sec_attr=0x%x, ns_devs=0x%x)\n",
-		sec_attr, ns_device_access);
-
-	/* Do range checks on filters and regions. */
-	assert(((filters >> tzc.num_filters) == 0) &&
-	       (region < tzc.num_regions));
-
-	/*
-	 * Do address range check based on TZC configuration. A 64bit address is
-	 * the max and expected case.
-	 */
-	assert(((region_top <= (UINT64_MAX >> (64 - tzc.addr_width))) &&
-		(region_base < region_top)));
-
-	/* region_base and (region_top + 1) must be 4KB aligned */
-	assert(((region_base | (region_top + 1)) & (4096 - 1)) == 0);
-
-	assert(sec_attr <= TZC_REGION_S_RDWR);
-
-	/*
-	 * Inputs look ok, start programming registers.
-	 * All the address registers are 32 bits wide and have a LOW and HIGH
-	 * component used to construct a up to a 64bit address.
-	 */
-	tzc_write_region_base_low(tzc.base, region,
-				(uint32_t)(region_base));
-	tzc_write_region_base_high(tzc.base, region,
-				(uint32_t)(region_base >> 32));
-
-	tzc_write_region_top_low(tzc.base, region,
-				(uint32_t)(region_top));
-	tzc_write_region_top_high(tzc.base, region,
-				(uint32_t)(region_top >> 32));
-
-	/* Assign the region to a filter and set secure attributes */
-	tzc_write_region_attributes(tzc.base, region,
-		(sec_attr << REG_ATTR_SEC_SHIFT) | filters);
-
-	/*
-	 * Specify which non-secure devices have permission to access this
-	 * region.
-	 */
-	tzc_write_region_id_access(tzc.base, region, ns_device_access);
-}
-
-
-void tzc_set_action(tzc_action_t action)
-{
-	assert(tzc.base);
-
-	/*
-	 * - Currently no handler is provided to trap an error via interrupt
-	 *   or exception.
-	 * - The interrupt action has not been tested.
-	 */
-	tzc_write_action(tzc.base, action);
-}
-
-
-void tzc_enable_filters(void)
-{
-	uint32_t state;
-	uint32_t filter;
-
-	assert(tzc.base);
-
-	for (filter = 0; filter < tzc.num_filters; filter++) {
-		state = tzc_get_gate_keeper(tzc.base, filter);
-		if (state) {
-			/* The TZC filter is already configured. Changing the
-			 * programmer's view in an active system can cause
-			 * unpredictable behavior therefore panic for now rather
-			 * than try to determine whether this is safe in this
-			 * instance. See:
-			 * http://infocenter.arm.com/help/index.jsp?\
-			 * topic=/com.arm.doc.ddi0504c/CJHHECBF.html */
-			ERROR("TZC : Filter %d Gatekeeper already enabled.\n",
-				filter);
-			panic();
-		}
-		tzc_set_gate_keeper(tzc.base, filter, 1);
-	}
-}
-
-
-void tzc_disable_filters(void)
-{
-	uint32_t filter;
-
-	assert(tzc.base);
-
-	/*
-	 * We don't do the same state check as above as the Gatekeepers are
-	 * disabled after reset.
-	 */
-	for (filter = 0; filter < tzc.num_filters; filter++)
-		tzc_set_gate_keeper(tzc.base, filter, 0);
-}
+#if ERROR_DEPRECATED
+#error "Using deprecated TZC-400 source file"
+#else
+#include "../tzc/tzc400.c"
+#endif /* ERROR_DEPRECATED */

include/drivers/arm/tzc400.h

 /*
- * Copyright (c) 2014-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2016, 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:
@@ -31,9 +31,9 @@
 #ifndef __TZC400_H__
 #define __TZC400_H__
 
+#include <tzc_common.h>
 
 #define BUILD_CONFIG_OFF			0x000
-#define ACTION_OFF		0x004
 #define GATE_KEEPER_OFF				0x008
 #define SPECULATION_CTRL_OFF			0x00c
 #define INT_STATUS				0x010
@@ -44,27 +44,10 @@
 #define FAIL_CONTROL_OFF			0x028
 #define FAIL_ID					0x02c
 
-#define REGION_BASE_LOW_OFF	0x100
-#define REGION_BASE_HIGH_OFF	0x104
-#define REGION_TOP_LOW_OFF	0x108
-#define REGION_TOP_HIGH_OFF	0x10c
-#define REGION_ATTRIBUTES_OFF	0x110
-#define REGION_ID_ACCESS_OFF	0x114
-#define REGION_NUM_OFF(region)  (0x20 * region)
-
-/* ID Registers */
-#define PID0_OFF		0xfe0
-#define PID1_OFF		0xfe4
-#define PID2_OFF		0xfe8
-#define PID3_OFF		0xfec
-#define PID4_OFF		0xfd0
-#define PID5_OFF		0xfd4
-#define PID6_OFF		0xfd8
-#define PID7_OFF		0xfdc
-#define CID0_OFF		0xff0
-#define CID1_OFF		0xff4
-#define CID2_OFF		0xff8
-#define CID3_OFF		0xffc
+/* ID registers not common across different varieties of TZC */
+#define PID5					0xFD4
+#define PID6					0xFD8
+#define PID7					0xFDC
 
 #define BUILD_CONFIG_NF_SHIFT			24
 #define BUILD_CONFIG_NF_MASK			0x3
@@ -73,14 +56,6 @@
 #define BUILD_CONFIG_NR_SHIFT			0
 #define BUILD_CONFIG_NR_MASK			0x1f
 
-/* Not describing the case where regions 1 to 8 overlap */
-#define ACTION_RV_SHIFT		0
-#define ACTION_RV_MASK		0x3
-#define  ACTION_RV_LOWOK	0x0
-#define  ACTION_RV_LOWERR	0x1
-#define  ACTION_RV_HIGHOK	0x2
-#define  ACTION_RV_HIGHERR	0x3
-
 /*
  * Number of gate keepers is implementation defined. But we know the max for
  * this device is 4. Get implementation details from BUILD_CONFIG.
@@ -124,85 +99,111 @@
 #define FAIL_ID_VNET_MASK			0xf
 #define FAIL_ID_ID_SHIFT			0
 
-/* Used along with 'tzc_region_attributes_t' below */
-#define REG_ATTR_SEC_SHIFT		30
-#define REG_ATTR_F_EN_SHIFT		0
-#define REG_ATTR_F_EN_MASK		0xf
-#define REG_ATTR_FILTER_BIT(x)		((1 << x) << REG_ATTR_F_EN_SHIFT)
-#define REG_ATTR_FILTER_BIT_ALL		(REG_ATTR_F_EN_MASK << \
-					REG_ATTR_F_EN_SHIFT)
-
-#define REGION_ID_ACCESS_NSAID_WR_EN_SHIFT	16
-#define REGION_ID_ACCESS_NSAID_RD_EN_SHIFT	0
-#define REGION_ID_ACCESS_NSAID_ID_MASK		0xf
-
-
-/* Macros for setting Region ID access permissions based on NSAID */
-#define TZC_REGION_ACCESS_RD(id)					\
-		((1 << (id & REGION_ID_ACCESS_NSAID_ID_MASK)) <<	\
-		 REGION_ID_ACCESS_NSAID_RD_EN_SHIFT)
-#define TZC_REGION_ACCESS_WR(id)					\
-		((1 << (id & REGION_ID_ACCESS_NSAID_ID_MASK)) <<	\
-		 REGION_ID_ACCESS_NSAID_WR_EN_SHIFT)
-#define TZC_REGION_ACCESS_RDWR(id)					\
-		(TZC_REGION_ACCESS_RD(id) | TZC_REGION_ACCESS_WR(id))
+#define TZC_400_PERIPHERAL_ID			0x460
 
-/* Consist of part_number_1 and part_number_0 */
-#define TZC400_PERIPHERAL_ID	0x0460
+/* Filter enable bits in a TZC */
+#define TZC_400_REGION_ATTR_F_EN_MASK		0xf
+#define TZC_400_REGION_ATTR_FILTER_BIT(x)	((1 << x)		\
+					<< TZC_REGION_ATTR_F_EN_SHIFT)
+#define TZC_400_REGION_ATTR_FILTER_BIT_ALL				\
+				(TZC_400_REGION_ATTR_F_EN_MASK <<	\
+				TZC_REGION_ATTR_F_EN_SHIFT)
 
+/*
+ * Define some macros for backward compatibility with existing tzc400 clients.
+ */
+#if !ERROR_DEPRECATED
+#define REG_ATTR_FILTER_BIT(x)			((1 << x)		\
+					<< TZC_REGION_ATTR_F_EN_SHIFT)
+#define REG_ATTR_FILTER_BIT_ALL	(TZC_400_REGION_ATTR_F_EN_MASK <<	\
+					TZC_REGION_ATTR_F_EN_SHIFT)
+#endif /* __ERROR_DEPRECATED__ */
 
+/*
+ * All TZC region configuration registers are placed one after another. It
+ * depicts size of block of registers for programming each region.
+ */
+#define TZC_400_REGION_SIZE			0x20
+#define TZC_400_ACTION_OFF			0x4
 
 #ifndef __ASSEMBLY__
 
+#include <cdefs.h>
 #include <stdint.h>
 
 /*******************************************************************************
  * Function & variable prototypes
  ******************************************************************************/
+void tzc400_init(uintptr_t base);
+void tzc400_configure_region0(tzc_region_attributes_t sec_attr,
+			   unsigned int ns_device_access);
+void tzc400_configure_region(unsigned int filters,
+			  int region,
+			  uintptr_t region_base,
+			  uintptr_t region_top,
+			  tzc_region_attributes_t sec_attr,
+			  unsigned int ns_device_access);
+void tzc400_set_action(tzc_action_t action);
+void tzc400_enable_filters(void);
+void tzc400_disable_filters(void);
 
 /*
- * What type of action is expected when an access violation occurs.
- * The memory requested is zeroed. But we can also raise and event to
- * let the system know it happened.
- * We can raise an interrupt(INT) and/or cause an exception(ERR).
- *  TZC_ACTION_NONE    - No interrupt, no Exception
- *  TZC_ACTION_ERR     - No interrupt, raise exception -> sync external
- *                       data abort
- *  TZC_ACTION_INT     - Raise interrupt, no exception
- *  TZC_ACTION_ERR_INT - Raise interrupt, raise exception -> sync
- *                       external data abort
+ * Deprecated APIs
  */
-typedef enum {
-	TZC_ACTION_NONE = 0,
-	TZC_ACTION_ERR = 1,
-	TZC_ACTION_INT = 2,
-	TZC_ACTION_ERR_INT = (TZC_ACTION_ERR | TZC_ACTION_INT)
-} tzc_action_t;
+static inline void tzc_init(uintptr_t base) __deprecated;
+static inline void tzc_configure_region0(
+			tzc_region_attributes_t sec_attr,
+			unsigned int ns_device_access) __deprecated;
+static inline void tzc_configure_region(
+			  unsigned int filters,
+			  int region,
+			  uintptr_t region_base,
+			  uintptr_t region_top,
+			  tzc_region_attributes_t sec_attr,
+			  unsigned int ns_device_access) __deprecated;
+static inline void tzc_set_action(tzc_action_t action) __deprecated;
+static inline void tzc_enable_filters(void) __deprecated;
+static inline void tzc_disable_filters(void) __deprecated;
 
-/*
- * Controls secure access to a region. If not enabled secure access is not
- * allowed to region.
- */
-typedef enum {
-	TZC_REGION_S_NONE = 0,
-	TZC_REGION_S_RD = 1,
-	TZC_REGION_S_WR = 2,
-	TZC_REGION_S_RDWR = (TZC_REGION_S_RD | TZC_REGION_S_WR)
-} tzc_region_attributes_t;
-
-
-void tzc_init(uintptr_t base);
-void tzc_configure_region0(tzc_region_attributes_t sec_attr,
-			uint32_t ns_device_access);
-void tzc_configure_region(uint32_t filters,
-			uint8_t region,
-			uint64_t region_base,
-			uint64_t region_top,
+static inline void tzc_init(uintptr_t base)
+{
+	tzc400_init(base);
+}
+
+static inline void tzc_configure_region0(
+			tzc_region_attributes_t sec_attr,
+			unsigned int ns_device_access)
+{
+	tzc400_configure_region0(sec_attr, ns_device_access);
+}
+
+static inline void tzc_configure_region(
+			  unsigned int filters,
+			  int region,
+			  uintptr_t region_base,
+			  uintptr_t region_top,
 			  tzc_region_attributes_t sec_attr,
-			uint32_t ns_device_access);
-void tzc_enable_filters(void);
-void tzc_disable_filters(void);
-void tzc_set_action(tzc_action_t action);
+			  unsigned int ns_device_access)
+{
+	tzc400_configure_region(filters, region, region_base,
+			region_top, sec_attr, ns_device_access);
+}
+
+static inline void tzc_set_action(tzc_action_t action)
+{
+	tzc400_set_action(action);
+}
+
+
+static inline void tzc_enable_filters(void)
+{
+	tzc400_enable_filters();
+}
+
+static inline void tzc_disable_filters(void)
+{
+	tzc400_disable_filters();
+}
 
 #endif /* __ASSEMBLY__ */
 

include/drivers/arm/tzc_common.h

+/*
+ * Copyright (c) 2016, 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __TZC_COMMON_H__
+#define __TZC_COMMON_H__
+
+/*
+ * Offset of core registers from the start of the base of configuration
+ * registers for each region.
+ */
+
+/* ID Registers */
+#define PID0_OFF					0xfe0
+#define PID1_OFF					0xfe4
+#define PID2_OFF					0xfe8
+#define PID3_OFF					0xfec
+#define PID4_OFF					0xfd0
+#define CID0_OFF					0xff0
+#define CID1_OFF					0xff4
+#define CID2_OFF					0xff8
+#define CID3_OFF					0xffc
+
+/* Bit positions of TZC_ACTION registers */
+#define TZC_ACTION_RV_SHIFT				0
+#define TZC_ACTION_RV_MASK				0x3
+#define TZC_ACTION_RV_LOWOK				0x0
+#define TZC_ACTION_RV_LOWERR				0x1
+#define TZC_ACTION_RV_HIGHOK				0x2
+#define TZC_ACTION_RV_HIGHERR				0x3
+
+/* Used along with 'tzc_region_attributes_t' below */
+#define TZC_REGION_ATTR_S_RD_SHIFT			30
+#define TZC_REGION_ATTR_S_WR_SHIFT			31
+#define TZC_REGION_ATTR_F_EN_SHIFT			0
+#define TZC_REGION_ATTR_SEC_SHIFT			30
+#define TZC_REGION_ATTR_S_RD_MASK			0x1
+#define TZC_REGION_ATTR_S_WR_MASK			0x1
+#define TZC_REGION_ATTR_SEC_MASK			0x3
+
+#define TZC_REGION_ACCESS_WR_EN_SHIFT			16
+#define TZC_REGION_ACCESS_RD_EN_SHIFT			0
+#define TZC_REGION_ACCESS_ID_MASK			0xf
+
+/* Macros for allowing Non-Secure access to a region based on NSAID */
+#define TZC_REGION_ACCESS_RD(nsaid)				\
+	((1 << (nsaid & TZC_REGION_ACCESS_ID_MASK)) <<		\
+	 TZC_REGION_ACCESS_RD_EN_SHIFT)
+#define TZC_REGION_ACCESS_WR(nsaid)				\
+	((1 << (nsaid & TZC_REGION_ACCESS_ID_MASK)) <<		\
+	 TZC_REGION_ACCESS_WR_EN_SHIFT)
+#define TZC_REGION_ACCESS_RDWR(nsaid)				\
+	(TZC_REGION_ACCESS_RD(nsaid) |				\
+	TZC_REGION_ACCESS_WR(nsaid))
+
+#ifndef __ASSEMBLY__
+
+/* Returns offset of registers to program for a given region no */
+#define TZC_REGION_OFFSET(region_size, region_no)	\
+				((region_size) * (region_no))
+
+/*
+ * What type of action is expected when an access violation occurs.
+ * The memory requested is returned as zero. But we can also raise an event to
+ * let the system know it happened.
+ * We can raise an interrupt(INT) and/or cause an exception(ERR).
+ *  TZC_ACTION_NONE    - No interrupt, no Exception
+ *  TZC_ACTION_ERR     - No interrupt, raise exception -> sync external
+ *                       data abort
+ *  TZC_ACTION_INT     - Raise interrupt, no exception
+ *  TZC_ACTION_ERR_INT - Raise interrupt, raise exception -> sync
+ *                       external data abort
+ */
+typedef enum {
+	TZC_ACTION_NONE = 0,
+	TZC_ACTION_ERR = 1,
+	TZC_ACTION_INT = 2,
+	TZC_ACTION_ERR_INT = (TZC_ACTION_ERR | TZC_ACTION_INT)
+} tzc_action_t;
+
+/*
+ * Controls secure access to a region. If not enabled secure access is not
+ * allowed to region.
+ */
+typedef enum {
+	TZC_REGION_S_NONE = 0,
+	TZC_REGION_S_RD = 1,
+	TZC_REGION_S_WR = 2,
+	TZC_REGION_S_RDWR = (TZC_REGION_S_RD | TZC_REGION_S_WR)
+} tzc_region_attributes_t;
+
+#endif /* __ASSEMBLY__ */
+#endif /* __TZC_COMMON_H__ */

include/drivers/arm/tzc_dmc500.h

+/*
+ * Copyright (c) 2016, 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __TZC_DMC500_H__
+#define __TZC_DMC500_H__
+
+#include <tzc_common.h>
+
+#define SI_STATUS_OFFSET				0x000
+#define SI_STATE_CTRL_OFFSET				0x030
+#define SI_FLUSH_CTRL_OFFSET				0x034
+#define SI_INT_CONTROL_OFFSET				0x048
+
+#define SI_INT_STATUS_OFFSET				0x004
+#define SI_TZ_FAIL_ADDRESS_LOW_OFFSET			0x008
+#define SI_TZ_FAIL_ADDRESS_HIGH_OFFSET			0x00c
+#define SI_FAIL_CONTROL_OFFSET				0x010
+#define SI_FAIL_ID_OFFSET				0x014
+#define SI_INT_CLR_OFFSET				0x04c
+
+/*
+ * DMC-500 has 2 system interfaces each having a similar set of regs
+ * to configure each interface.
+ */
+#define SI0_BASE					0x0000
+#define SI1_BASE					0x0200
+
+/* Bit positions of SIx_SI_STATUS */
+#define SI_EMPTY_SHIFT					0x01
+#define SI_STALL_ACK_SHIFT				0x00
+#define SI_EMPTY_MASK					0x01
+#define SI_STALL_ACK_MASK				0x01
+
+/* Bit positions of SIx_SI_INT_STATUS */
+#define PMU_REQ_INT_OVERFLOW_STATUS_SHIFT		18
+#define FAILED_ACCESS_INT_OVERFLOW_STATUS_SHIFT		16
+#define PMU_REQ_INT_STATUS_SHIFT			2
+#define FAILED_ACCESS_INT_INFO_TZ_OVERLAP_STATUS_SHIFT	1
+#define FAILED_ACCESS_INT_STATUS_SHIFT			0
+#define PMU_REQ_INT_OVERFLOW_STATUS_MASK		0x1
+#define FAILED_ACCESS_INT_OVERFLOW_STATUS_MASK		0x1
+#define PMU_REQ_INT_STATUS_MASK				0x1
+#define FAILED_ACCESS_INT_INFO_TZ_OVERLAP_STATUS_MASK	0x1
+#define FAILED_ACCESS_INT_STATUS_MASK			0x1
+
+/* Bit positions of SIx_TZ_FAIL_CONTROL */
+#define DIRECTION_SHIFT					24
+#define NON_SECURE_SHIFT				21
+#define PRIVILEGED_SHIFT				20
+#define FAILED_ACCESS_INT_INFO_RANK_MASKED_SHIFT	3
+#define FAILED_ACCESS_INT_INFO_UNMAPPED_SHIFT		2
+#define FAILED_ACCESS_INT_TZ_FAIL_SHIFT			0x1
+#define FAILED_ACCESS_INT_INFO_OUTSIDE_DEFAULT_SHIFT	0
+#define DIRECTION_MASK					0x1
+#define NON_SECURE_MASK					0x1
+#define PRIVILEGED_MASK					0x1
+#define FAILED_ACCESS_INT_INFO_RANK_MASKED_MASK		0x1
+#define FAILED_ACCESS_INT_INFO_UNMAPPED_MASK		0x1
+#define FAILED_ACCESS_INT_TZ_FAIL_MASK			1
+#define FAILED_ACCESS_INT_INFO_OUTSIDE_DEFAULT_MASK	0x1
+
+/* Bit positions of SIx_FAIL_STATUS */
+#define FAIL_ID_VNET_SHIFT				24
+#define FAIL_ID_ID_SHIFT				0
+#define FAIL_ID_VNET_MASK				0xf
+#define FAIL_ID_ID_MASK					0xffffff
+
+/* Bit positions of SIx_SI_STATE_CONTRL */
+#define SI_STALL_REQ_GO					0x0
+#define SI_STALL_REQ_STALL				0x1
+
+/* Bit positions of SIx_SI_FLUSH_CONTROL */
+#define SI_FLUSH_REQ_INACTIVE				0x0
+#define SI_FLUSH_REQ_ACTIVE				0x1
+#define SI_FLUSH_REQ_MASK				0x1
+
+/* Bit positions of SIx_SI_INT_CONTROL */
+#define PMU_REQ_INT_EN_SHIFT				2
+#define OVERLAP_DETECT_INT_EN_SHIFT			1
+#define FAILED_ACCESS_INT_EN_SHIFT			0
+#define PMU_REQ_INT_EN_MASK				0x1
+#define OVERLAP_DETECT_INT_EN_MASK			0x1
+#define FAILED_ACCESS_INT_EN_MASK			0x1
+#define PMU_REQ_INT_EN					0x1
+#define OVERLAP_DETECT_INT_EN				0x1
+#define FAILED_ACCESS_INT_EN				0x1
+
+/* Bit positions of SIx_SI_INT_CLR */
+#define PMU_REQ_OFLOW_CLR_SHIFT				18
+#define FAILED_ACCESS_OFLOW_CLR_SHIFT			16
+#define PMU_REQ_INT_CLR_SHIFT				2
+#define FAILED_ACCESS_INT_CLR_SHIFT			0
+#define PMU_REQ_OFLOW_CLR_MASK				0x1
+#define FAILED_ACCESS_OFLOW_CLR_MASK			0x1
+#define PMU_REQ_INT_CLR_MASK				0x1
+#define FAILED_ACCESS_INT_CLR_MASK			0x1
+#define PMU_REQ_OFLOW_CLR				0x1
+#define FAILED_ACCESS_OFLOW_CLR				0x1
+#define PMU_REQ_INT_CLR					0x1
+#define FAILED_ACCESS_INT_CLR				0x1
+
+/* Macro to get the correct base register for a system interface */
+#define IFACE_OFFSET(sys_if)	((sys_if) ? SI1_BASE : SI0_BASE)
+
+#define MAX_SYS_IF_COUNT				2
+#define MAX_REGION_VAL					8
+
+/* DMC-500 supports striping across a max of 4 DMC instances */
+#define MAX_DMC_COUNT					4
+
+/* Consist of part_number_1 and part_number_0 */
+#define DMC500_PERIPHERAL_ID				0x0450
+
+/* Filter enable bits in a TZC */
+#define TZC_DMC500_REGION_ATTR_F_EN_MASK		0x1
+
+/* Length of registers for configuring each region */
+#define TZC_DMC500_REGION_SIZE				0x018
+
+#ifndef __ASSEMBLY__
+
+#include <stdint.h>
+
+/*
+ * Contains the base addresses of all the DMC instances.
+ */
+typedef struct tzc_dmc500_driver_data {
+	uintptr_t dmc_base[MAX_DMC_COUNT];
+	int dmc_count;
+} tzc_dmc500_driver_data_t;
+
+void tzc_dmc500_driver_init(const tzc_dmc500_driver_data_t *plat_driver_data);
+void tzc_dmc500_configure_region0(tzc_region_attributes_t sec_attr,
+				unsigned int nsaid_permissions);
+void tzc_dmc500_configure_region(int region_no,
+				uintptr_t region_base,
+				uintptr_t region_top,
+				tzc_region_attributes_t sec_attr,
+				unsigned int nsaid_permissions);
+void tzc_dmc500_set_action(tzc_action_t action);
+void tzc_dmc500_config_complete(void);
+int tzc_dmc500_verify_complete(void);
+
+
+#endif /* __ASSEMBLY__ */
+#endif /* __TZC_DMC500_H__ */
+

include/plat/arm/common/plat_arm.h

@@ -130,7 +130,9 @@ void arm_configure_mmu_el3(unsigned long total_base,
 void arm_io_setup(void);
 
 /* Security utility functions */
-void arm_tzc_setup(void);
+void arm_tzc400_setup(void);
+struct tzc_dmc500_driver_data;
+void arm_tzc_dmc500_setup(struct tzc_dmc500_driver_data *plat_driver_data);
 
 /* Systimer utility function */
 void arm_configure_sys_timer(void);

include/plat/arm/css/common/css_def.h

@@ -143,7 +143,7 @@
 #define PLAT_ARM_NS_IMAGE_OFFSET	0xE0000000
 
 /* TZC related constants */
-#define PLAT_ARM_TZC_FILTERS		REG_ATTR_FILTER_BIT_ALL
+#define PLAT_ARM_TZC_FILTERS		TZC_400_REGION_ATTR_FILTER_BIT_ALL
 
 /* Trusted mailbox base address common to all CSS */
 #define PLAT_ARM_TRUSTED_MAILBOX_BASE	ARM_TRUSTED_SRAM_BASE

plat/arm/board/fvp/fvp_security.c

@@ -46,5 +46,5 @@ void plat_arm_security_setup(void)
 	 */
 
 	if (get_arm_config()->flags & ARM_CONFIG_HAS_TZC)
-		arm_tzc_setup();
+		arm_tzc400_setup();
 }

plat/arm/board/fvp/include/platform_def.h

@@ -113,7 +113,7 @@
  * would normally use the default ID so allow that too.
  */
 #define PLAT_ARM_TZC_BASE		0x2a4a0000
-#define PLAT_ARM_TZC_FILTERS		REG_ATTR_FILTER_BIT(0)
+#define PLAT_ARM_TZC_FILTERS		TZC_400_REGION_ATTR_FILTER_BIT(0)
 
 #define PLAT_ARM_TZC_NS_DEV_ACCESS	(				\
 		TZC_REGION_ACCESS_RDWR(FVP_NSAID_DEFAULT)	|	\

plat/arm/board/fvp/platform.mk

@@ -65,7 +65,7 @@ endif
 FVP_INTERCONNECT_SOURCES	:= 	drivers/arm/cci/cci.c		\
 					plat/arm/common/arm_cci.c
 
-FVP_SECURITY_SOURCES	:=	drivers/arm/tzc400/tzc400.c		\
+FVP_SECURITY_SOURCES	:=	drivers/arm/tzc/tzc400.c		\
 				plat/arm/board/fvp/fvp_security.c	\
 				plat/arm/common/arm_tzc400.c
 

plat/arm/board/juno/juno_security.c

@@ -65,7 +65,7 @@ static void css_init_nic400(void)
 void plat_arm_security_setup(void)
 {
 	/* Initialize the TrustZone Controller */
-	arm_tzc_setup();
+	arm_tzc400_setup();
 	/* Do ARM CSS internal NIC setup */
 	css_init_nic400();
 	/* Do ARM CSS SoC security setup */

plat/arm/board/juno/platform.mk

@@ -37,7 +37,7 @@ JUNO_GIC_SOURCES	:=	drivers/arm/gic/common/gic_common.c	\
 JUNO_INTERCONNECT_SOURCES	:=	drivers/arm/cci/cci.c		\
 					plat/arm/common/arm_cci.c
 
-JUNO_SECURITY_SOURCES	:=	drivers/arm/tzc400/tzc400.c		\
+JUNO_SECURITY_SOURCES	:=	drivers/arm/tzc/tzc400.c		\
 				plat/arm/board/juno/juno_security.c	\
 				plat/arm/common/arm_tzc400.c
 

plat/arm/common/arm_tzc400.c

@@ -48,53 +48,53 @@
  * When booting an EL3 payload, this is simplified: we configure region 0 with
  * secure access only and do not enable any other region.
  ******************************************************************************/
-void arm_tzc_setup(void)
+void arm_tzc400_setup(void)
 {
 	INFO("Configuring TrustZone Controller\n");
 
-	tzc_init(PLAT_ARM_TZC_BASE);
+	tzc400_init(PLAT_ARM_TZC_BASE);
 
 	/* Disable filters. */
-	tzc_disable_filters();
+	tzc400_disable_filters();
 
 #ifndef EL3_PAYLOAD_BASE
 	/* Region 0 set to no access by default */
-	tzc_configure_region0(TZC_REGION_S_NONE, 0);
+	tzc400_configure_region0(TZC_REGION_S_NONE, 0);
 
 	/* Region 1 set to cover Secure part of DRAM */
-	tzc_configure_region(PLAT_ARM_TZC_FILTERS, 1,
+	tzc400_configure_region(PLAT_ARM_TZC_FILTERS, 1,
 			ARM_AP_TZC_DRAM1_BASE, ARM_AP_TZC_DRAM1_END,
 			TZC_REGION_S_RDWR,
 			0);
 
 	/* Region 2 set to cover Non-Secure access to 1st DRAM address range.
 	 * Apply the same configuration to given filters in the TZC. */
-	tzc_configure_region(PLAT_ARM_TZC_FILTERS, 2,
+	tzc400_configure_region(PLAT_ARM_TZC_FILTERS, 2,
 			ARM_NS_DRAM1_BASE, ARM_NS_DRAM1_END,
 			TZC_REGION_S_NONE,
 			PLAT_ARM_TZC_NS_DEV_ACCESS);
 
 	/* Region 3 set to cover Non-Secure access to 2nd DRAM address range */
-	tzc_configure_region(PLAT_ARM_TZC_FILTERS, 3,
+	tzc400_configure_region(PLAT_ARM_TZC_FILTERS, 3,
 			ARM_DRAM2_BASE, ARM_DRAM2_END,
 			TZC_REGION_S_NONE,
 			PLAT_ARM_TZC_NS_DEV_ACCESS);
 #else
 	/* Allow secure access only to DRAM for EL3 payloads. */
-	tzc_configure_region0(TZC_REGION_S_RDWR, 0);
+	tzc400_configure_region0(TZC_REGION_S_RDWR, 0);
 #endif /* EL3_PAYLOAD_BASE */
 
 	/*
 	 * Raise an exception if a NS device tries to access secure memory
 	 * TODO: Add interrupt handling support.
 	 */
-	tzc_set_action(TZC_ACTION_ERR);
+	tzc400_set_action(TZC_ACTION_ERR);
 
 	/* Enable filters. */
-	tzc_enable_filters();
+	tzc400_enable_filters();
 }
 
 void plat_arm_security_setup(void)
 {
-	arm_tzc_setup();
+	arm_tzc400_setup();
 }

plat/arm/common/arm_tzc_dmc500.c

+/*
+ * Copyright (c) 2016, 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arm_def.h>
+#include <assert.h>
+#include <debug.h>
+#include <platform_def.h>
+#include <tzc_dmc500.h>
+
+/*******************************************************************************
+ * Initialize the DMC500-TrustZone Controller for ARM standard platforms.
+ * Configure both the interfaces on Region 0 with no access, Region 1 with
+ * secure access only, and the remaining DRAM regions access from the
+ * given Non-Secure masters.
+ *
+ * When booting an EL3 payload, this is simplified: we configure region 0 with
+ * secure access only and do not enable any other region.
+ ******************************************************************************/
+void arm_tzc_dmc500_setup(tzc_dmc500_driver_data_t *plat_driver_data)
+{
+	assert(plat_driver_data);
+
+	INFO("Configuring DMC-500 TZ Settings\n");
+
+	tzc_dmc500_driver_init(plat_driver_data);
+
+#ifndef EL3_PAYLOAD_BASE
+	/* Region 0 set to no access by default */
+	tzc_dmc500_configure_region0(TZC_REGION_S_NONE, 0);
+
+	/* Region 1 set to cover Secure part of DRAM */
+	tzc_dmc500_configure_region(1, ARM_AP_TZC_DRAM1_BASE,
+		ARM_AP_TZC_DRAM1_END,
+		TZC_REGION_S_RDWR,
+		0);
+
+	/* Region 2 set to cover Non-Secure access to 1st DRAM address range.*/
+	tzc_dmc500_configure_region(2,
+		ARM_NS_DRAM1_BASE,
+		ARM_NS_DRAM1_END,
+		TZC_REGION_S_NONE,
+		PLAT_ARM_TZC_NS_DEV_ACCESS);
+
+	/* Region 3 set to cover Non-Secure access to 2nd DRAM address range */
+	tzc_dmc500_configure_region(3,
+		ARM_DRAM2_BASE,
+		ARM_DRAM2_END,
+		TZC_REGION_S_NONE,
+		PLAT_ARM_TZC_NS_DEV_ACCESS);
+#else
+	/* Allow secure access only to DRAM for EL3 payloads */
+	tzc_dmc500_configure_region0(TZC_REGION_S_RDWR, 0);
+#endif
+	/*
+	 * Raise an exception if a NS device tries to access secure memory
+	 * TODO: Add interrupt handling support.
+	 */
+	tzc_dmc500_set_action(TZC_ACTION_RV_LOWERR);
+
+	/*
+	 * Flush the configuration settings to have an affect. Validate
+	 * flush by checking FILTER_EN is set on region 1 attributes
+	 * register.
+	 */
+	tzc_dmc500_config_complete();
+
+	/*
+	 * Wait for the flush to complete.
+	 * TODO: Have a timeout for this loop
+	 */
+	while (tzc_dmc500_verify_complete())
+		;
+}