109 lines
4.3 KiB
C
109 lines
4.3 KiB
C
/*
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* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch_helpers.h>
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#include <assert.h>
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#include <bl_common.h>
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#include <debug.h>
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#include <mmio.h>
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#include <platform.h>
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#include <platform_def.h>
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#include <xlat_tables.h>
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#include "../juno_def.h"
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/*
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* Table of regions to map using the MMU.
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* This doesn't include Trusted RAM as the 'mem_layout' argument passed to
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* configure_mmu_elx() will give the available subset of that,
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*/
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static const mmap_region_t juno_mmap[] = {
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{ TZROM_BASE, TZROM_BASE, TZROM_SIZE, MT_MEMORY | MT_RO | MT_SECURE },
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{ MHU_SECURE_BASE, MHU_SECURE_BASE, MHU_SECURE_SIZE, (MHU_PAYLOAD_CACHED ? MT_MEMORY : MT_DEVICE) | MT_RW | MT_SECURE },
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{ FLASH_BASE, FLASH_BASE, FLASH_SIZE, MT_MEMORY | MT_RO | MT_SECURE },
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{ EMMC_BASE, EMMC_BASE, EMMC_SIZE, MT_MEMORY | MT_RO | MT_SECURE },
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{ PSRAM_BASE, PSRAM_BASE, PSRAM_SIZE, MT_MEMORY | MT_RW | MT_SECURE }, /* Used for 'TZDRAM' */
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{ IOFPGA_BASE, IOFPGA_BASE, IOFPGA_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
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{ DEVICE0_BASE, DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
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{ DEVICE1_BASE, DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_SECURE },
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{ DRAM_BASE, DRAM_BASE, DRAM_SIZE, MT_MEMORY | MT_RW | MT_NS },
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{0}
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};
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/*******************************************************************************
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* Macro generating the code for the function setting up the pagetables as per
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* the platform memory map & initialize the mmu, for the given exception level
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******************************************************************************/
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#define DEFINE_CONFIGURE_MMU_EL(_el) \
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void configure_mmu_el##_el(unsigned long total_base, \
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unsigned long total_size, \
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unsigned long ro_start, \
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unsigned long ro_limit, \
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unsigned long coh_start, \
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unsigned long coh_limit) \
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{ \
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mmap_add_region(total_base, total_base, \
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total_size, \
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MT_MEMORY | MT_RW | MT_SECURE); \
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mmap_add_region(ro_start, ro_start, \
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ro_limit - ro_start, \
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MT_MEMORY | MT_RO | MT_SECURE); \
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mmap_add_region(coh_start, coh_start, \
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coh_limit - coh_start, \
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MT_DEVICE | MT_RW | MT_SECURE); \
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mmap_add(juno_mmap); \
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init_xlat_tables(); \
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\
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enable_mmu_el##_el(0); \
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}
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/* Define EL1 and EL3 variants of the function initialising the MMU */
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DEFINE_CONFIGURE_MMU_EL(1)
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DEFINE_CONFIGURE_MMU_EL(3)
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unsigned long plat_get_ns_image_entrypoint(void)
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{
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return NS_IMAGE_OFFSET;
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}
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uint64_t plat_get_syscnt_freq(void)
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{
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uint64_t counter_base_frequency;
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/* Read the frequency from Frequency modes table */
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counter_base_frequency = mmio_read_32(SYS_CNTCTL_BASE + CNTFID_OFF);
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/* The first entry of the frequency modes table must not be 0 */
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if (counter_base_frequency == 0)
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panic();
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return counter_base_frequency;
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}
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