platform_def.h

/*
 * Copyright (c) 2014-2015, 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 __PLATFORM_DEF_H__
#define __PLATFORM_DEF_H__


/*******************************************************************************
 * Platform binary types for linking
 ******************************************************************************/
#define PLATFORM_LINKER_FORMAT		"elf64-littleaarch64"
#define PLATFORM_LINKER_ARCH		aarch64

/*******************************************************************************
 * Generic platform constants
 ******************************************************************************/

/* Size of cacheable stacks */
#if IMAGE_BL1
#define PLATFORM_STACK_SIZE 0x440
#elif IMAGE_BL2
#define PLATFORM_STACK_SIZE 0x400
#elif IMAGE_BL31
#define PLATFORM_STACK_SIZE 0x800
#elif IMAGE_BL32
#define PLATFORM_STACK_SIZE 0x440
#endif

#define FIRMWARE_WELCOME_STR		"Booting Trusted Firmware\n"

#define PLATFORM_MAX_AFFLVL		MPIDR_AFFLVL2
#define PLATFORM_SYSTEM_COUNT		1
#define PLATFORM_CLUSTER_COUNT		2
#define PLATFORM_CLUSTER0_CORE_COUNT	4
#define PLATFORM_CLUSTER1_CORE_COUNT	2
#define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER1_CORE_COUNT +	\
					 PLATFORM_CLUSTER0_CORE_COUNT)
#define PLATFORM_MAX_CPUS_PER_CLUSTER	4
#define PLATFORM_NUM_AFFS		(PLATFORM_SYSTEM_COUNT +	\
					 PLATFORM_CLUSTER_COUNT +	\
					 PLATFORM_CORE_COUNT)

/*******************************************************************************
 * Platform memory map related constants
 ******************************************************************************/
/*
 * MT8173 SRAM memory layout
 * 0x100000 +-------------------+
 *          | shared mem (4KB)  |
 * 0x101000 +-------------------+
 *          |                   |
 *          |   BL3-1 (124KB)   |
 *          |                   |
 * 0x120000 +-------------------+
 *          |  reserved (64KB)  |
 * 0x130000 +-------------------+
 */
/* TF txet, ro, rw, xlat table, coherent memory ... etc.
 * Size: release: 128KB, debug: 128KB
 */
#define TZRAM_BASE		(0x100000)
#if DEBUG
#define TZRAM_SIZE		(0x20000)
#else
#define TZRAM_SIZE		(0x20000)
#endif

/* Reserved: 64KB */
#define TZRAM2_BASE		(TZRAM_BASE + TZRAM_SIZE)
#define TZRAM2_SIZE		(0x10000)

/*******************************************************************************
 * BL31 specific defines.
 ******************************************************************************/
/*
 * Put BL3-1 at the top of the Trusted SRAM (just below the shared memory, if
 * present). BL31_BASE is calculated using the current BL3-1 debug size plus a
 * little space for growth.
 */
#define BL31_BASE		(TZRAM_BASE + 0x1000)
#define BL31_LIMIT		(TZRAM_BASE + TZRAM_SIZE)
#define TZRAM2_LIMIT		(TZRAM2_BASE + TZRAM2_SIZE)

/*******************************************************************************
 * Platform specific page table and MMU setup constants
 ******************************************************************************/
#define ADDR_SPACE_SIZE		(1ull << 32)
#define MAX_XLAT_TABLES		4
#define MAX_MMAP_REGIONS	16

/*******************************************************************************
 * Declarations and constants to access the mailboxes safely. Each mailbox is
 * aligned on the biggest cache line size in the platform. This is known only
 * to the platform as it might have a combination of integrated and external
 * caches. Such alignment ensures that two maiboxes do not sit on the same cache
 * line at any cache level. They could belong to different cpus/clusters &
 * get written while being protected by different locks causing corruption of
 * a valid mailbox address.
 ******************************************************************************/
#define CACHE_WRITEBACK_SHIFT	6
#define CACHE_WRITEBACK_GRANULE	(1 << CACHE_WRITEBACK_SHIFT)

#endif /* __PLATFORM_DEF_H__ */