mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-17 01:54:22 +00:00
9c740a58e1
Currently, the xlat region of the on-chip SRAM is always allocated for all BL images. The access to the on-chip SRAM is necessary for loading images from a USB memory device (i.e. when updating firmware), so unneeded for the usual boot procedure. To avoid this waste, allocate the xlat region dynamically only for BL2, and only when it is necessary. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
|
|
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <debug.h>
|
|
#include <platform_def.h>
|
|
#include <xlat_tables_v2.h>
|
|
|
|
#define UNIPHIER_REG_REGION_BASE 0x50000000
|
|
#define UNIPHIER_REG_REGION_SIZE 0x20000000
|
|
|
|
void uniphier_mmap_setup(uintptr_t total_base, size_t total_size,
|
|
const struct mmap_region *mmap)
|
|
{
|
|
VERBOSE("Trusted RAM seen by this BL image: %p - %p\n",
|
|
(void *)total_base, (void *)(total_base + total_size));
|
|
mmap_add_region(total_base, total_base,
|
|
total_size,
|
|
MT_MEMORY | MT_RW | MT_SECURE);
|
|
|
|
/* remap the code section */
|
|
VERBOSE("Code region: %p - %p\n",
|
|
(void *)BL_CODE_BASE, (void *)BL_CODE_END);
|
|
mmap_add_region(BL_CODE_BASE, BL_CODE_BASE,
|
|
round_up(BL_CODE_END, PAGE_SIZE) - BL_CODE_BASE,
|
|
MT_CODE | MT_SECURE);
|
|
|
|
/* remap the coherent memory region */
|
|
VERBOSE("Coherent region: %p - %p\n",
|
|
(void *)BL_COHERENT_RAM_BASE, (void *)BL_COHERENT_RAM_END);
|
|
mmap_add_region(BL_COHERENT_RAM_BASE, BL_COHERENT_RAM_BASE,
|
|
BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
|
|
MT_DEVICE | MT_RW | MT_SECURE);
|
|
|
|
/* register region */
|
|
mmap_add_region(UNIPHIER_REG_REGION_BASE, UNIPHIER_REG_REGION_BASE,
|
|
UNIPHIER_REG_REGION_SIZE,
|
|
MT_DEVICE | MT_RW | MT_SECURE);
|
|
|
|
/* additional regions if needed */
|
|
if (mmap)
|
|
mmap_add(mmap);
|
|
|
|
init_xlat_tables();
|
|
}
|