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Diffstat (limited to '')
| -rw-r--r-- | include/drivers/arm/css/css_scp.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/drivers/arm/css/css_scp.h b/include/drivers/arm/css/css_scp.h new file mode 100644 index 0000000..2b506ea --- /dev/null +++ b/include/drivers/arm/css/css_scp.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef CSS_SCP_H +#define CSS_SCP_H + +#include <stdint.h> + +#include <platform_def.h> + +#include <lib/cassert.h> + +/* Forward declarations */ +struct psci_power_state; + +/* API for power management by SCP */ +int css_system_reset2(int is_vendor, int reset_type, u_register_t cookie); +void css_scp_suspend(const struct psci_power_state *target_state); +void css_scp_off(const struct psci_power_state *target_state); +void css_scp_on(u_register_t mpidr); +int css_scp_get_power_state(u_register_t mpidr, unsigned int power_level); +void __dead2 css_scp_sys_shutdown(void); +void __dead2 css_scp_sys_reboot(void); +void __dead2 css_scp_system_off(int state); + +/* API for SCP Boot Image transfer. Return 0 on success, -1 on error */ +int css_scp_boot_image_xfer(void *image, unsigned int image_size); + +/* + * API to wait for SCP to signal till it's ready after booting the transferred + * image. + */ +int css_scp_boot_ready(void); + +#if CSS_LOAD_SCP_IMAGES + +/* + * All CSS platforms load SCP_BL2/SCP_BL2U just below BL2 (this is where BL31 + * usually resides except when ARM_BL31_IN_DRAM is + * set). Ensure that SCP_BL2/SCP_BL2U do not overflow into fw_config. + */ +CASSERT(SCP_BL2_LIMIT <= BL2_BASE, assert_scp_bl2_overwrite_bl2); +CASSERT(SCP_BL2U_LIMIT <= BL2_BASE, assert_scp_bl2u_overwrite_bl2); + +CASSERT(SCP_BL2_BASE >= ARM_FW_CONFIG_LIMIT, assert_scp_bl2_overflow); +CASSERT(SCP_BL2U_BASE >= ARM_FW_CONFIG_LIMIT, assert_scp_bl2u_overflow); +#endif + +#endif /* CSS_SCP_H */ |