129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
/*
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* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <arch_helpers.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <lib/mmio.h>
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#include <lib/xlat_tables/xlat_tables.h>
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#include <plat/common/platform.h>
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#include <hikey_def.h>
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#include <hikey_layout.h>
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#define MAP_DDR MAP_REGION_FLAT(DDR_BASE, \
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DDR_SIZE - DDR_SEC_SIZE, \
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MT_DEVICE | MT_RW | MT_NS)
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#define MAP_DEVICE MAP_REGION_FLAT(DEVICE_BASE, \
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DEVICE_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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#define MAP_TSP_MEM MAP_REGION_FLAT(TSP_SEC_MEM_BASE, \
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TSP_SEC_MEM_SIZE, \
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MT_MEMORY | MT_RW | MT_SECURE)
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#define MAP_ROM_PARAM MAP_REGION_FLAT(XG2RAM0_BASE, \
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BL1_XG2RAM0_OFFSET, \
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MT_DEVICE | MT_RO | MT_SECURE)
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#define MAP_SRAM MAP_REGION_FLAT(SRAM_BASE, \
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SRAM_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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/*
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* BL1 needs to access the areas of MMC_SRAM.
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* BL1 loads BL2 from eMMC into SRAM before DDR initialized.
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*/
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#define MAP_MMC_SRAM MAP_REGION_FLAT(HIKEY_BL1_MMC_DESC_BASE, \
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HIKEY_BL1_MMC_DESC_SIZE + \
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HIKEY_BL1_MMC_DATA_SIZE, \
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MT_DEVICE | MT_RW | MT_SECURE)
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/*
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* Table of regions for different BL stages 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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* hikey_init_mmu_elx() will give the available subset of that,
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*/
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#ifdef IMAGE_BL1
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static const mmap_region_t hikey_mmap[] = {
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MAP_DEVICE,
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MAP_ROM_PARAM,
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MAP_MMC_SRAM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL2
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static const mmap_region_t hikey_mmap[] = {
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MAP_DDR,
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MAP_DEVICE,
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MAP_TSP_MEM,
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MAP_SRAM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL31
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static const mmap_region_t hikey_mmap[] = {
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MAP_DEVICE,
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MAP_SRAM,
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MAP_TSP_MEM,
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{0}
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};
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#endif
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#ifdef IMAGE_BL32
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static const mmap_region_t hikey_mmap[] = {
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MAP_DEVICE,
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MAP_DDR,
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{0}
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};
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#endif
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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 HIKEY_CONFIGURE_MMU_EL(_el) \
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void hikey_init_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(hikey_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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HIKEY_CONFIGURE_MMU_EL(1)
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HIKEY_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 HIKEY_NS_IMAGE_OFFSET;
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}
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unsigned int plat_get_syscnt_freq2(void)
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{
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return 1200000;
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}
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