coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
spi.h
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/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _BROADWELL_SPI_H_
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#define _BROADWELL_SPI_H_
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/*
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* SPI Opcode Menu setup for SPIBAR lockdown
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* should support most common flash chips.
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*/
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#define SPIBAR_OFFSET 0x3800
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#define SPIBAR8(x) RCBA8(x + SPIBAR_OFFSET)
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#define SPIBAR32(x) RCBA32(x + SPIBAR_OFFSET)
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/* Registers within the SPIBAR */
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#define SPIBAR_SSFC 0x91
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#define SPIBAR_FDOC 0xb0
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#define SPIBAR_FDOD 0xb4
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#define SPIBAR_HSFS 0x04
/* SPI hardware sequence status */
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#define SPIBAR_HSFS_FLOCKDN (1 << 15)
/* Flash Configuration Lock-Down */
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#endif
src
soc
intel
broadwell
include
soc
spi.h
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