src/drivers/intel/fsp2_0/include/fsp/upd.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #ifndef _FSP2_0_UPD_H_
   4 #define _FSP2_0_UPD_H_
   5
   6 #include <stdint.h>
   7
   8 struct FSP_UPD_HEADER {
   9         ///
  10         /// UPD Region Signature. This signature will be
  11         /// "XXXXXX_T" for FSP-T
  12         /// "XXXXXX_M" for FSP-M
  13         /// "XXXXXX_S" for FSP-S
  14         /// Where XXXXXX is an unique signature
  15         ///
  16         uint64_t                      Signature;
  17         ///
  18         /// Revision of the Data structure. For FSP v2.0 value is 1.
  19         ///
  20         uint8_t                       Revision;
  21         uint8_t                       Reserved[23];
  22 } __packed;
  23
  24 #if CONFIG(PLATFORM_USES_FSP2_X86_32)
  25 struct FSPM_ARCH_UPD {
  26         ///
  27         /// Revision of the structure. For FSP v2.0 value is 1.
  28         ///
  29         uint8_t                       Revision;
  30         uint8_t                       Reserved[3];
  31         ///
  32         /// Pointer to the non-volatile storage (NVS) data buffer.
  33         /// If it is NULL it indicates the NVS data is not available.
  34         ///
  35         uint32_t                      NvsBufferPtr;
  36         ///
  37         /// Pointer to the temporary stack base address to be
  38         /// consumed inside FspMemoryInit() API.
  39         ///
  40         uint32_t                      StackBase;
  41         ///
  42         /// Temporary stack size to be consumed inside
  43         /// FspMemoryInit() API.
  44         ///
  45         uint32_t                      StackSize;
  46         ///
  47         /// Size of memory to be reserved by FSP below "top
  48         /// of low usable memory" for bootloader usage.
  49         ///
  50         uint32_t                      BootLoaderTolumSize;
  51         ///
  52         /// Current boot mode.
  53         ///
  54         uint32_t                      BootMode;
  55         uint8_t                       Reserved1[8];
  56 } __packed;
  57 #else
  58 #error You need to implement this struct for x86_64 FSP
  59 #endif
  60
  61 #endif
  62 struct FSPS_ARCH_UPD {
  63         ///
  64         /// Revision of the structure. For FSP v2.2 value is 1.
  65         ///
  66         uint8_t                       Revision;
  67         uint8_t                       Reserved[3];
  68         ///
  69         /// Length of the structure in bytes. The current value for this field is 32
  70         ///
  71         uint32_t                      Length;
  72         uint8_t                       Reserved1[4];
  73         ///
  74         /// To enable multi-phase silicon initialization the bootloader must set non-zero value
  75         ///
  76         uint8_t                       EnableMultiPhaseSiliconInit;
  77         uint8_t                       Reserved2[19];
  78 } __packed;
  79
  80 #endif /* _FSP2_0_UPD_H_ */