arm-trusted-firmware/plat/arm/css/common/css_bl2u_setup.c
Antonio Nino Diaz 09d40e0e08 Sanitise includes across codebase
Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2019-01-04 10:43:17 +00:00

59 lines
1.7 KiB
C

/*
* 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 <plat/common/platform.h>
#include <plat_arm.h>
#include "../drivers/scp/css_scp.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;
}