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74d44a49f8
The SCP_BL2 is transferred to SCP during BL2 image load and authenticate sequence. The Boot-Over-MHU (BOM) protocol is used as transport for this. After the SCP boots using the transferred image, the AP CPU waits till the `READY` message is received from SCP. This patch separates the API for transport of image from the wait for `READY` message and also moves the related files to the `css/drivers` folder. The previous API `scp_bootloader_transfer` is renamed to `css_scp_boot_image_xfer` to reflect the css naming convention. This reorganisation also allows easier switch to a different transport (eg: Shared Data Structure based transfer) in future Change-Id: I8a96f9c4616ffde6dbfdf7c18f6f6f8bfa40bbf0 Signed-off-by: Soby Mathew <soby.mathew@arm.com>
37 lines
1 KiB
C
37 lines
1 KiB
C
/*
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* Copyright (c) 2016-2017, 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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#ifndef __CSS_SCP_H__
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#define __CSS_SCP_H__
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#include <types.h>
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#include "../scpi/css_scpi.h"
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/* Forward declarations */
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struct psci_power_state;
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/* API for power management by SCP */
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void css_scp_suspend(const struct psci_power_state *target_state);
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void css_scp_off(const struct psci_power_state *target_state);
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void css_scp_on(u_register_t mpidr);
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int css_scp_get_power_state(u_register_t mpidr, unsigned int power_level);
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void __dead2 css_scp_sys_shutdown(void);
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void __dead2 css_scp_sys_reboot(void);
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/* API for SCP Boot Image transfer. Return 0 on success, -1 on error */
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int css_scp_boot_image_xfer(void *image, unsigned int image_size);
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/*
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* API to wait for SCP to signal till it's ready after booting the transferred
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* image.
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*/
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static inline int css_scp_boot_ready(void)
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{
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VERBOSE("Waiting for SCP to signal it is ready to go on\n");
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return scpi_wait_ready();
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}
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#endif /* __CSS_SCP_H__ */
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