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/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <bl_common.h>
#include <debug.h>
#include <desc_image_load.h>
#include <errno.h>
#include <io/io_storage.h>
#include <platform.h>
#include <platform_def.h>
#include <xlat_tables_v2.h>
#include "uniphier.h"
static meminfo_t uniphier_bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
static int uniphier_bl2_kick_scp;
void bl2_early_platform_setup(meminfo_t *mem_layout)
{
uniphier_bl2_tzram_layout = *mem_layout;
uniphier_console_setup();
}
static const struct mmap_region uniphier_bl2_mmap[] = {
/* for SCP, BL33 */
MAP_REGION_FLAT(UNIPHIER_NS_DRAM_BASE, UNIPHIER_NS_DRAM_SIZE,
MT_MEMORY | MT_RW | MT_NS),
{ .size = 0 },
};
void bl2_plat_arch_setup(void)
{
unsigned int soc;
int skip_scp = 0;
int ret;
uniphier_mmap_setup(UNIPHIER_SEC_DRAM_BASE, UNIPHIER_SEC_DRAM_SIZE,
uniphier_bl2_mmap);
enable_mmu_el1(0);
soc = uniphier_get_soc_id();
if (soc == UNIPHIER_SOC_UNKNOWN) {
ERROR("unsupported SoC\n");
plat_error_handler(-ENOTSUP);
}
ret = uniphier_io_setup(soc);
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);
}
if (!skip_scp) {
ret = uniphier_check_image(SCP_BL2_IMAGE_ID);
if (ret) {
WARN("SCP_BL2 image not found. SCP_BL2 load will be skipped.\n");
WARN("You must setup SCP by other means.\n");
skip_scp = 1;
uniphier_bl2_kick_scp = 0;
}
}
if (skip_scp)
uniphier_image_descs_fixup();
}
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();
}
int bl2_plat_handle_post_image_load(unsigned int image_id)
{
if (image_id == SCP_BL2_IMAGE_ID && uniphier_bl2_kick_scp)
uniphier_scp_start();
return 0;
}
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