blob: 11d837cf4f49f2f5a7b45a66f45a73293d2b1fb3 [file] [log] [blame]
/*
* Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <errno.h>
#include <platform_def.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <common/desc_image_load.h>
#include <common/image_decompress.h>
#include <drivers/io/io_storage.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <plat/common/platform.h>
#ifdef UNIPHIER_DECOMPRESS_GZIP
#include <tf_gunzip.h>
#endif
#include "uniphier.h"
#define UNIPHIER_IMAGE_BUF_OFFSET 0x04300000UL
#define UNIPHIER_IMAGE_BUF_SIZE 0x00100000UL
static uintptr_t uniphier_mem_base = UNIPHIER_MEM_BASE;
static int uniphier_bl2_kick_scp;
void bl2_el3_early_platform_setup(u_register_t x0, u_register_t x1,
u_register_t x2, u_register_t x3)
{
uniphier_console_setup();
}
void bl2_el3_plat_arch_setup(void)
{
unsigned int soc;
int skip_scp = 0;
int ret;
uniphier_mmap_setup();
enable_mmu_el3(0);
/* add relocation offset (run-time-address - link-address) */
uniphier_mem_base += BL_CODE_BASE - BL2_BASE;
soc = uniphier_get_soc_id();
if (soc == UNIPHIER_SOC_UNKNOWN) {
ERROR("unsupported SoC\n");
plat_error_handler(-ENOTSUP);
}
ret = uniphier_io_setup(soc, uniphier_mem_base);
if (ret) {
ERROR("failed to setup io devices\n");
plat_error_handler(ret);
}
switch (uniphier_get_boot_master(soc)) {
case UNIPHIER_BOOT_MASTER_THIS:
INFO("Booting from this SoC\n");
skip_scp = 1;
break;
case UNIPHIER_BOOT_MASTER_SCP:
INFO("Booting from on-chip SCP\n");
if (uniphier_scp_is_running()) {
INFO("SCP is already running. SCP_BL2 load will be skipped.\n");
skip_scp = 1;
}
/*
* SCP must be kicked every time even if it is already running
* because it polls this event after the reboot of the backend.
*/
uniphier_bl2_kick_scp = 1;
break;
case UNIPHIER_BOOT_MASTER_EXT:
INFO("Booting from external SCP\n");
skip_scp = 1;
break;
default:
plat_error_handler(-ENOTSUP);
break;
}
if (skip_scp) {
struct image_info *image_info;
image_info = uniphier_get_image_info(SCP_BL2_IMAGE_ID);
image_info->h.attr |= IMAGE_ATTRIB_SKIP_LOADING;
}
}
void bl2_platform_setup(void)
{
}
void plat_flush_next_bl_params(void)
{
flush_bl_params_desc();
}
bl_load_info_t *plat_get_bl_image_load_info(void)
{
return get_bl_load_info_from_mem_params_desc();
}
bl_params_t *plat_get_next_bl_params(void)
{
return get_next_bl_params_from_mem_params_desc();
}
void bl2_plat_preload_setup(void)
{
#ifdef UNIPHIER_DECOMPRESS_GZIP
uintptr_t buf_base = uniphier_mem_base + UNIPHIER_IMAGE_BUF_OFFSET;
int ret;
ret = mmap_add_dynamic_region(buf_base, buf_base,
UNIPHIER_IMAGE_BUF_SIZE,
MT_MEMORY | MT_RW | MT_NS);
if (ret)
plat_error_handler(ret);
image_decompress_init(buf_base, UNIPHIER_IMAGE_BUF_SIZE, gunzip);
#endif
uniphier_init_image_descs(uniphier_mem_base);
}
int bl2_plat_handle_pre_image_load(unsigned int image_id)
{
struct image_info *image_info;
int ret;
image_info = uniphier_get_image_info(image_id);
ret = mmap_add_dynamic_region(image_info->image_base,
image_info->image_base,
image_info->image_max_size,
MT_MEMORY | MT_RW | MT_NS);
if (ret)
return ret;
#ifdef UNIPHIER_DECOMPRESS_GZIP
image_decompress_prepare(image_info);
#endif
return 0;
}
int bl2_plat_handle_post_image_load(unsigned int image_id)
{
struct image_info *image_info = uniphier_get_image_info(image_id);
#ifdef UNIPHIER_DECOMPRESS_GZIP
int ret;
if (!(image_info->h.attr & IMAGE_ATTRIB_SKIP_LOADING)) {
ret = image_decompress(uniphier_get_image_info(image_id));
if (ret)
return ret;
}
#endif
if (image_id == SCP_BL2_IMAGE_ID && uniphier_bl2_kick_scp)
uniphier_scp_start(image_info->image_base);
return 0;
}