host_bridge.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef __SANDYBRIDGE_REGISTERS_HOST_BRIDGE_H__
#define __SANDYBRIDGE_REGISTERS_HOST_BRIDGE_H__
 
#define EPBAR           0x40
#define MCHBAR          0x48
 
#define GGC             0x50    /* GMCH Graphics Control */
#define DEVEN           0x54    /* Device Enable */
#define  DEVEN_D7EN     (1 << 14)
#define  DEVEN_PEG60    (1 << 13)
#define  DEVEN_D4EN     (1 <<  7)
#define  DEVEN_IGD      (1 <<  4)
#define  DEVEN_PEG10    (1 <<  3)
#define  DEVEN_PEG11    (1 <<  2)
#define  DEVEN_PEG12    (1 <<  1)
#define  DEVEN_HOST     (1 <<  0)
 
#define PAVPC           0x58    /* Protected Audio Video Path Control */
#define DPR             0x5c    /* DMA Protected Range */
 
#define PCIEXBAR        0x60
#define DMIBAR          0x68
 
#define MESEG_BASE      0x70
#define MESEG_MASK      0x78
#define  MELCK          (1 << 10)       /* ME Range Lock */
#define  ME_STLEN_EN    (1 << 11)       /* ME Stolen Memory Enable */
 
#define PAM0            0x80
#define PAM1            0x81
#define PAM2            0x82
#define PAM3            0x83
#define PAM4            0x84
#define PAM5            0x85
#define PAM6            0x86
 
#define LAC             0x87    /* Legacy Access Control */
#define SMRAM           0x88    /* System Management RAM Control */
 
#define REMAPBASE       0x90
#define REMAPLIMIT      0x98
#define TOM             0xa0
#define TOUUD           0xa8    /* Top of Upper Usable DRAM */
#define BDSM            0xb0    /* Base Data of Stolen Memory */
#define BGSM            0xb4    /* Base GTT Stolen Memory */
#define TSEGMB          0xb8    /* TSEG Memory Base */
#define TOLUD           0xbc    /* Top of Low Used Memory */
 
#define CAPID0_A        0xe4    /* Capabilities Register A */
#define  CAPID_ECCDIS   (1 << 25)
#define  CAPID_DDPCD    (1 << 14)
#define  CAPID_PDCD     (1 << 12)
#define  CAPID_WRTVREF  (1 <<  1)
#define  CAPID_DDRSZ(x) (((x) >> 19) & 0x3)
 
#define CAPID0_B        0xe8    /* Capabilities Register B */
 
#define SKPAD           0xdc    /* Scratchpad Data */
 
#define DIDOR           0xf3    /* Device ID override, for debug and samples only */
 
#endif /* __SANDYBRIDGE_REGISTERS_HOST_BRIDGE_H__ */