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https://github.com/ARM-software/arm-trusted-firmware.git
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bd9344f670
Use full include paths like it is done for common includes.
This cleanup was started in commit d40e0e08283a ("Sanitise includes
across codebase"), but it only cleaned common files and drivers. This
patch does the same to Arm platforms.
Change-Id: If982e6450bbe84dceb56d464e282bcf5d6d9ab9b
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
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* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <string.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <lib/mmio.h>
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#include <lib/utils.h>
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#include <plat/arm/common/plat_arm.h>
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#include <platform_def.h>
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#include "../drivers/scp/css_scp.h"
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/* Weak definition may be overridden in specific CSS based platform */
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#pragma weak plat_arm_bl2_handle_scp_bl2
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/*******************************************************************************
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* Transfer SCP_BL2 from Trusted RAM using the SCP Download protocol.
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* Return 0 on success, -1 otherwise.
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******************************************************************************/
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int plat_arm_bl2_handle_scp_bl2(image_info_t *scp_bl2_image_info)
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{
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int ret;
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INFO("BL2: Initiating SCP_BL2 transfer to SCP\n");
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ret = css_scp_boot_image_xfer((void *)scp_bl2_image_info->image_base,
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scp_bl2_image_info->image_size);
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if (ret == 0)
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ret = css_scp_boot_ready();
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if (ret == 0)
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INFO("BL2: SCP_BL2 transferred to SCP\n");
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else
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ERROR("BL2: SCP_BL2 transfer failure\n");
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return ret;
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}
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#if !CSS_USE_SCMI_SDS_DRIVER
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# if defined(EL3_PAYLOAD_BASE) || JUNO_AARCH32_EL3_RUNTIME
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/*
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* We need to override some of the platform functions when booting an EL3
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* payload or SP_MIN on Juno AArch32. This needs to be done only for
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* SCPI/BOM SCP systems as in case of SDS, the structures remain in memory and
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* don't need to be overwritten.
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*/
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static unsigned int scp_boot_config;
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void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1,
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u_register_t arg2, u_register_t arg3)
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{
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arm_bl2_early_platform_setup((uintptr_t)arg0, (meminfo_t *)arg1);
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/* Save SCP Boot config before it gets overwritten by SCP_BL2 loading */
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scp_boot_config = mmio_read_32(SCP_BOOT_CFG_ADDR);
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VERBOSE("BL2: Saved SCP Boot config = 0x%x\n", scp_boot_config);
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}
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void bl2_platform_setup(void)
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{
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arm_bl2_platform_setup();
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/*
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* Before releasing the AP cores out of reset, the SCP writes some data
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* at the beginning of the Trusted SRAM. It is is overwritten before
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* reaching this function. We need to restore this data, as if the
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* target had just come out of reset. This implies:
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* - zeroing the first 128 bytes of Trusted SRAM using zeromem instead
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* of zero_normalmem since this is device memory.
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* - restoring the SCP boot configuration.
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*/
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VERBOSE("BL2: Restoring SCP reset data in Trusted SRAM\n");
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zeromem((void *) ARM_SHARED_RAM_BASE, 128);
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mmio_write_32(SCP_BOOT_CFG_ADDR, scp_boot_config);
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}
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# endif /* EL3_PAYLOAD_BASE */
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#endif /* CSS_USE_SCMI_SDS_DRIVER */
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