src/soc/intel/common/block/include/intelblocks/p2sb.h

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifndef SOC_INTEL_COMMON_BLOCK_P2SB_H
  16 #define SOC_INTEL_COMMON_BLOCK_P2SB_H
  17
  18 #include <stddef.h>
  19 #include <stdint.h>
  20
  21 #define PCH_P2SB_E0             0xe0
  22 #define   P2SB_E0_MASKLOCK      (1 << 1)
  23 #define PCH_P2SB_IBDF           0x6c
  24 #define PCH_P2SB_HBDF           0x70
  25
  26 enum {
  27         P2SB_EP_MASK_0_REG,
  28         P2SB_EP_MASK_1_REG,
  29         P2SB_EP_MASK_2_REG,
  30         P2SB_EP_MASK_3_REG,
  31         P2SB_EP_MASK_4_REG,
  32         P2SB_EP_MASK_5_REG,
  33         P2SB_EP_MASK_6_REG,
  34         P2SB_EP_MASK_7_REG,
  35         P2SB_EP_MASK_MAX_REG,
  36 };
  37
  38 void p2sb_unhide(void);
  39 void p2sb_hide(void);
  40 void p2sb_disable_sideband_access(void);
  41 void p2sb_enable_bar(void);
  42 void p2sb_configure_hpet(void);
  43
  44 /* SOC overrides */
  45 /*
  46  * Each SoC should implement EP Mask register to disable SB access
  47  * Input:
  48  * ep_mask: An array to be filled by SoC code with EP mask register.
  49  * count: number of element in EP mask array.
  50  */
  51 void p2sb_soc_get_sb_mask(uint32_t *ep_mask, size_t count);
  52
  53 #endif  /* SOC_INTEL_COMMON_BLOCK_P2SB_H */