sgi_plat.c

/*
 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <arm_def.h>
#include <arm_spm_def.h>
#include <bl_common.h>
#include <ccn.h>
#include <debug.h>
#include <plat_arm.h>
#include <platform.h>
#include <secure_partition.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
#if ENABLE_SPM
	ARM_SP_IMAGE_MMAP,
#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,
#if ENABLE_SPM
	ARM_SPM_BUF_EL3_MMAP,
#endif
	{0}
};

#if ENABLE_SPM && defined(IMAGE_BL31)
const mmap_region_t plat_arm_secure_partition_mmap[] = {
	PLAT_ARM_SECURE_MAP_DEVICE,
	ARM_SP_IMAGE_MMAP,
	ARM_SP_IMAGE_NS_BUF_MMAP,
	ARM_SP_IMAGE_RW_MMAP,
	ARM_SPM_BUF_EL0_MMAP,
	{0}
};
#endif /* ENABLE_SPM && defined(IMAGE_BL31) */
#endif

ARM_CASSERT_MMAP

#if ENABLE_SPM && defined(IMAGE_BL31)
/*
 * Boot information passed to a secure partition during initialisation. Linear
 * indices in MP information will be filled at runtime.
 */
static secure_partition_mp_info_t sp_mp_info[] = {
	[0] = {0x81000000, 0},
	[1] = {0x81000100, 0},
	[2] = {0x81000200, 0},
	[3] = {0x81000300, 0},
	[4] = {0x81010000, 0},
	[5] = {0x81010100, 0},
	[6] = {0x81010200, 0},
	[7] = {0x81010300, 0},
};

const secure_partition_boot_info_t plat_arm_secure_partition_boot_info = {
	.h.type              = PARAM_SP_IMAGE_BOOT_INFO,
	.h.version           = VERSION_1,
	.h.size              = sizeof(secure_partition_boot_info_t),
	.h.attr              = 0,
	.sp_mem_base         = ARM_SP_IMAGE_BASE,
	.sp_mem_limit        = ARM_SP_IMAGE_LIMIT,
	.sp_image_base       = ARM_SP_IMAGE_BASE,
	.sp_stack_base       = PLAT_SP_IMAGE_STACK_BASE,
	.sp_heap_base        = ARM_SP_IMAGE_HEAP_BASE,
	.sp_ns_comm_buf_base = ARM_SP_IMAGE_NS_BUF_BASE,
	.sp_shared_buf_base  = PLAT_SPM_BUF_BASE,
	.sp_image_size       = ARM_SP_IMAGE_SIZE,
	.sp_pcpu_stack_size  = PLAT_SP_IMAGE_STACK_PCPU_SIZE,
	.sp_heap_size        = ARM_SP_IMAGE_HEAP_SIZE,
	.sp_ns_comm_buf_size = ARM_SP_IMAGE_NS_BUF_SIZE,
	.sp_shared_buf_size  = PLAT_SPM_BUF_SIZE,
	.num_sp_mem_regions  = ARM_SP_IMAGE_NUM_MEM_REGIONS,
	.num_cpus            = PLATFORM_CORE_COUNT,
	.mp_info             = &sp_mp_info[0],
};

const struct mmap_region *plat_get_secure_partition_mmap(void *cookie)
{
	return plat_arm_secure_partition_mmap;
}

const struct secure_partition_boot_info *plat_get_secure_partition_boot_info(
		void *cookie)
{
	return &plat_arm_secure_partition_boot_info;
}
#endif /* ENABLE_SPM && defined(IMAGE_BL31) */