LXR uboot/arch/x86/include/asm/fsp/fsp

   1/* SPDX-License-Identifier: Intel */
   2/*
   3 * Copyright (C) 2013, Intel Corporation
   4 * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
   5 */
   6
   7#ifndef __FSP_API_H__
   8#define __FSP_API_H__
   9
  10#include <linux/linkage.h>
  11
  12/*
  13 * FSP common configuration structure.
  14 * This needs to be included in the platform-specific struct fsp_config_data.
  15 */
  16struct fsp_cfg_common {
  17        struct fsp_header       *fsp_hdr;
  18        u32                     stack_top;
  19        u32                     boot_mode;
  20};
  21
  22/*
  23 * FspInit continuation function prototype.
  24 * Control will be returned to this callback function after FspInit API call.
  25 */
  26typedef void (*fsp_continuation_f)(u32 status, void *hob_list);
  27
  28struct fsp_init_params {
  29        /* Non-volatile storage buffer pointer */
  30        void                    *nvs_buf;
  31        /* Runtime buffer pointer */
  32        void                    *rt_buf;
  33        /* Continuation function address */
  34        fsp_continuation_f      continuation;
  35};
  36
  37struct common_buf {
  38        /*
  39         * Stack top pointer used by the bootloader. The new stack frame will be
  40         * set up at this location after FspInit API call.
  41         */
  42        u32     stack_top;
  43        u32     boot_mode;      /* Current system boot mode */
  44        void    *upd_data;      /* User platform configuraiton data region */
  45        u32     tolum_size;     /* Top of low usable memory size (FSP 1.1) */
  46        u32     reserved[6];    /* Reserved */
  47};
  48
  49enum fsp_phase {
  50        /* Notification code for post PCI enuermation */
  51        INIT_PHASE_PCI  = 0x20,
  52        /* Notification code before transfering control to the payload */
  53        INIT_PHASE_BOOT = 0x40
  54};
  55
  56struct fsp_notify_params {
  57        /* Notification phase used for NotifyPhase API */
  58        enum fsp_phase  phase;
  59};
  60
  61/* FspInit API function prototype */
  62typedef asmlinkage u32 (*fsp_init_f)(struct fsp_init_params *params);
  63
  64/* FspNotify API function prototype */
  65typedef asmlinkage u32 (*fsp_notify_f)(struct fsp_notify_params *params);
  66
  67#endif
  68