coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
host_bridge.h
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/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __IRONLAKE_REGISTERS_HOST_BRIDGE_H__
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#define __IRONLAKE_REGISTERS_HOST_BRIDGE_H__
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#define EPBAR 0x40
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#define MCHBAR 0x48
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#define GGC 0x52
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#define DEVEN 0x54
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#define DEVEN_IGD (1 << 3)
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#define DEVEN_PEG10 (1 << 1)
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#define DEVEN_HOST (1 << 0)
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#define DMIBAR 0x68
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#define LAC 0x87
/* Legacy Access Control */
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#define REMAPBASE 0x98
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#define REMAPLIMIT 0x9a
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#define TOM 0xa0
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#define TOUUD 0xa2
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#define IGD_BASE 0xa4
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#define GTT_BASE 0xa8
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#define TSEG 0xac
/* TSEG base */
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#define TOLUD 0xb0
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#define SKPD 0xdc
/* Scratchpad Data */
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#define CAPID0 0xe0
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#endif
/* __IRONLAKE_REGISTERS_HOST_BRIDGE_H__ */
src
northbridge
intel
ironlake
registers
host_bridge.h
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