upd.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#ifndef _FSP2_0_UPD_H_
#define _FSP2_0_UPD_H_
 
#include <stdint.h>
 
struct FSP_UPD_HEADER {
        ///
        /// UPD Region Signature. This signature will be
        /// "XXXXXX_T" for FSP-T
        /// "XXXXXX_M" for FSP-M
        /// "XXXXXX_S" for FSP-S
        /// Where XXXXXX is an unique signature
        ///
        uint64_t                      Signature;
        ///
        /// Revision of the Data structure. For FSP v2.0 value is 1.
        ///
        uint8_t                       Revision;
        uint8_t                       Reserved[23];
} __packed;
 
#if CONFIG(PLATFORM_USES_FSP2_X86_32)
struct FSPM_ARCH_UPD {
        ///
        /// Revision of the structure. For FSP v2.0 value is 1.
        ///
        uint8_t                       Revision;
        uint8_t                       Reserved[3];
        ///
        /// Pointer to the non-volatile storage (NVS) data buffer.
        /// If it is NULL it indicates the NVS data is not available.
        ///
        uint32_t                      NvsBufferPtr;
        ///
        /// Pointer to the temporary stack base address to be
        /// consumed inside FspMemoryInit() API.
        ///
        uint32_t                      StackBase;
        ///
        /// Temporary stack size to be consumed inside
        /// FspMemoryInit() API.
        ///
        uint32_t                      StackSize;
        ///
        /// Size of memory to be reserved by FSP below "top
        /// of low usable memory" for bootloader usage.
        ///
        uint32_t                      BootLoaderTolumSize;
        ///
        /// Current boot mode.
        ///
        uint32_t                      BootMode;
        uint8_t                       Reserved1[8];
} __packed;
#else
#error You need to implement this struct for x86_64 FSP
#endif
 
#endif
struct FSPS_ARCH_UPD {
        ///
        /// Revision of the structure. For FSP v2.2 value is 1.
        ///
        uint8_t                       Revision;
        uint8_t                       Reserved[3];
        ///
        /// Length of the structure in bytes. The current value for this field is 32
        ///
        uint32_t                      Length;
        uint8_t                       Reserved1[4];
        ///
        /// To enable multi-phase silicon initialization the bootloader must set non-zero value
        ///
        uint8_t                       EnableMultiPhaseSiliconInit;
        uint8_t                       Reserved2[19];
} __packed;
 
#endif /* _FSP2_0_UPD_H_ */