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/*
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <common/bl_common.h>
#include <common/debug.h>
#include <drivers/arm/css/css_scp.h>
#include <plat/arm/common/plat_arm.h>
#include <plat/common/platform.h>
/* Weak definition may be overridden in specific CSS based platform */
#pragma weak bl2u_plat_handle_scp_bl2u
/* Data structure which holds the SCP_BL2U image info for BL2U */
static image_info_t scp_bl2u_image_info;
/*******************************************************************************
* BL1 can pass platform dependent information to BL2U in x1.
* In case of ARM CSS platforms x1 contains SCP_BL2U image info.
* In case of ARM FVP platforms x1 is not used.
* In both cases, x0 contains the extents of the memory available to BL2U
******************************************************************************/
void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
{
if (!plat_info)
panic();
arm_bl2u_early_platform_setup(mem_layout, plat_info);
scp_bl2u_image_info = *(image_info_t *)plat_info;
}
/*******************************************************************************
* Transfer SCP_BL2U from Trusted RAM using the SCP Download protocol.
******************************************************************************/
int bl2u_plat_handle_scp_bl2u(void)
{
int ret;
INFO("BL2U: Initiating SCP_BL2U transfer to SCP\n");
ret = css_scp_boot_image_xfer((void *)scp_bl2u_image_info.image_base,
scp_bl2u_image_info.image_size);
if (ret == 0)
ret = css_scp_boot_ready();
if (ret == 0)
INFO("BL2U: SCP_BL2U transferred to SCP\n");
else
ERROR("BL2U: SCP_BL2U transfer failure\n");
return ret;
}
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