122 lines
3.0 KiB
C
122 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <arm_def.h>
|
|
#include <bl_common.h>
|
|
#include <ccn.h>
|
|
#include <debug.h>
|
|
#include <plat_arm.h>
|
|
#include <platform.h>
|
|
#include "../../../../bl1/bl1_private.h"
|
|
|
|
#if USE_COHERENT_MEM
|
|
/*
|
|
* The next 2 constants identify the extents of the coherent memory region.
|
|
* These addresses are used by the MMU setup code and therefore they must be
|
|
* page-aligned. It is the responsibility of the linker script to ensure that
|
|
* __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols
|
|
* refer to page-aligned addresses.
|
|
*/
|
|
#define BL1_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
|
|
#define BL1_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
|
|
#define BL2_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
|
|
#define BL2_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
|
|
|
|
#define BL31_COHERENT_RAM_BASE (uintptr_t)(&__COHERENT_RAM_START__)
|
|
#define BL31_COHERENT_RAM_LIMIT (uintptr_t)(&__COHERENT_RAM_END__)
|
|
#endif
|
|
|
|
#define SGI_MAP_FLASH0_RO MAP_REGION_FLAT(V2M_FLASH0_BASE,\
|
|
V2M_FLASH0_SIZE, \
|
|
MT_DEVICE | MT_RO | MT_SECURE)
|
|
/*
|
|
* Table of regions for different BL stages to map using the MMU.
|
|
* This doesn't include Trusted RAM as the 'mem_layout' argument passed to
|
|
* arm_configure_mmu_elx() will give the available subset of that.
|
|
*
|
|
* Replace or extend the below regions as required
|
|
*/
|
|
#if IMAGE_BL1
|
|
const mmap_region_t plat_arm_mmap[] = {
|
|
ARM_MAP_SHARED_RAM,
|
|
SGI_MAP_FLASH0_RO,
|
|
CSS_SGI_MAP_DEVICE,
|
|
SOC_CSS_MAP_DEVICE,
|
|
{0}
|
|
};
|
|
#endif
|
|
#if IMAGE_BL2
|
|
const mmap_region_t plat_arm_mmap[] = {
|
|
ARM_MAP_SHARED_RAM,
|
|
SGI_MAP_FLASH0_RO,
|
|
CSS_SGI_MAP_DEVICE,
|
|
SOC_CSS_MAP_DEVICE,
|
|
ARM_MAP_NS_DRAM1,
|
|
#if ARM_BL31_IN_DRAM
|
|
ARM_MAP_BL31_SEC_DRAM,
|
|
#endif
|
|
{0}
|
|
};
|
|
#endif
|
|
#if IMAGE_BL31
|
|
const mmap_region_t plat_arm_mmap[] = {
|
|
ARM_MAP_SHARED_RAM,
|
|
V2M_MAP_IOFPGA,
|
|
CSS_SGI_MAP_DEVICE,
|
|
SOC_CSS_MAP_DEVICE,
|
|
{0}
|
|
};
|
|
#endif
|
|
|
|
ARM_CASSERT_MMAP
|
|
|
|
/*
|
|
* Set up the page tables for the generic and platform-specific memory regions.
|
|
* The extents of the generic memory regions are specified by the function
|
|
* arguments and consist of:
|
|
* - Trusted SRAM seen by the BL image;
|
|
* - Code section;
|
|
* - Read-only data section;
|
|
* - Coherent memory region, if applicable.
|
|
*/
|
|
|
|
#if IMAGE_BL1
|
|
void bl1_plat_arch_setup(void)
|
|
{
|
|
arm_setup_page_tables(ARM_BL_RAM_BASE,
|
|
ARM_BL_RAM_SIZE,
|
|
BL_CODE_BASE,
|
|
BL1_CODE_END,
|
|
BL1_RO_DATA_BASE,
|
|
BL1_RO_DATA_END
|
|
#if USE_COHERENT_MEM
|
|
, BL1_COHERENT_RAM_BASE,
|
|
BL1_COHERENT_RAM_LIMIT
|
|
#endif /* USE_COHERENT_MEM */
|
|
);
|
|
|
|
enable_mmu_el3(0);
|
|
}
|
|
#endif /* IMAGE_BL1 */
|
|
|
|
#if IMAGE_BL2
|
|
void bl2_plat_arch_setup(void)
|
|
{
|
|
arm_setup_page_tables(BL2_BASE,
|
|
BL2_LIMIT-BL2_BASE,
|
|
BL_CODE_BASE,
|
|
BL_CODE_END,
|
|
BL_RO_DATA_BASE,
|
|
BL_RO_DATA_END
|
|
#if USE_COHERENT_MEM
|
|
, BL2_COHERENT_RAM_BASE,
|
|
BL2_COHERENT_RAM_LIMIT
|
|
#endif /* USE_COHERENT_MEM */
|
|
);
|
|
enable_mmu_el1(0);
|
|
}
|
|
#endif /* IMAGE_BL2 */
|