coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
pci7420.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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// 0844d060 (old)
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#define SYSCTL 0x80
// 08405061
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#define RIMUX (1 << 0)
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#define GENCTL 0x86
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#define FW1394_PRIO (0 << 0)
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#define CARDBUS_PRIO (1 << 0)
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#define FLASH_PRIO (2 << 0)
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#define ROUNDR_PRIO (3 << 0)
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#define DISABLE_OHCI (1 << 3)
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#define DISABLE_SKTB (1 << 4)
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#define DISABLE_FM (1 << 5)
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#define P12V_SW_SEL (1 << 10)
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#define MFUNC 0x8c
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#define CARDCTL 0x91
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#define SPKROUTEN (1 << 1)
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#define DEVCTL 0x92
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#define INT_MODE_PAR (0 << 1)
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#define INT_MODE_RSV (1 << 1)
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#define INT_MODE_MIX (2 << 1)
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#define INT_MODE_SER (3 << 1)
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#define INTA 0
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#define INTB 1
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#define INTC 2
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#define INTD 3
src
southbridge
ti
pci7420
pci7420.h
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