6f1155916a
On many x86 platforms the boot device is SPI which is memory mapped. However, in order to write to the boot device one needs to use the SPI api. Therefore, provide a common implementation of boot_device_rw() which has no mmap() functionality. It only reads, writes, and erases. This will be used in the existing infrastructure but in a SPI agnostic way. Two options are added: 1. BOOT_DEVICE_SPI_FLASH_RW_NOMMAP 2. BOOT_DEVICE_SPI_FLASH_RW_NOMMAP_EARLY The former is auto-selected when COMMON_CBFS_SPI_WRAPPER is not selected. The latter can be used to include the implementation in the early stages such as bootblock, verstage, and romstage. BUG=chrome-os-partner:56151 Change-Id: I2aa75f88409309e3f9b9bd79b52d27c0061139c8 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16200 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Martin Roth <martinroth@google.com>
170 lines
4.7 KiB
Text
170 lines
4.7 KiB
Text
##
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## This file is part of the coreboot project.
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##
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## Copyright (C) 2012 The Chromium OS Authors.
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; version 2 of the License.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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config COMMON_CBFS_SPI_WRAPPER
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bool
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default n
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depends on !ARCH_X86
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depends on BOOT_DEVICE_SPI_FLASH
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select BOOT_DEVICE_SUPPORTS_WRITES
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help
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Use common wrapper to interface CBFS to SPI bootrom.
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config SPI_FLASH
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bool
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default y if BOOT_DEVICE_SPI_FLASH && BOOT_DEVICE_SUPPORTS_WRITES
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default n
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash.
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if SPI_FLASH
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# Keep at 0 because lots of boards assume this default.
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config BOOT_DEVICE_SPI_FLASH_BUS
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int
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default 0
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help
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Which SPI bus the boot device is connected to.
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config BOOT_DEVICE_SPI_FLASH_RW_NOMMAP
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bool
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default y if !COMMON_CBFS_SPI_WRAPPER
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default n
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depends on BOOT_DEVICE_SPI_FLASH
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help
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Provide common implementation of the RW boot device that
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doesn't provide mmap() operations.
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config BOOT_DEVICE_SPI_FLASH_RW_NOMMAP_EARLY
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bool
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default n
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depends on BOOT_DEVICE_SPI_FLASH_RW_NOMMAP
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help
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Include the common implementation in all stages, including the
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early ones.
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config SPI_FLASH_INCLUDE_ALL_DRIVERS
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bool
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default n if COMMON_CBFS_SPI_WRAPPER
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default y
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config SPI_ATOMIC_SEQUENCING
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bool
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default y if ARCH_X86
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default n if !ARCH_X86
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help
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Select this option if the SPI controller uses "atomic sequencing."
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Atomic sequencing is when the sequence of commands is pre-programmed
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in the SPI controller. Hardware manages the transaction instead of
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software. This is common on x86 platforms.
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config SPI_FLASH_SMM
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bool "SPI flash driver support in SMM"
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default n
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depends on HAVE_SMI_HANDLER
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help
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Select this option if you want SPI flash support in SMM.
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config SPI_FLASH_NO_FAST_READ
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bool "Disable Fast Read command"
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default n
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help
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Select this option if your setup requires to avoid "fast read"s
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from the SPI flash parts.
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config SPI_FLASH_ADESTO
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by Adesto Technologies.
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config SPI_FLASH_AMIC
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by AMIC.
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config SPI_FLASH_ATMEL
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by Atmel.
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config SPI_FLASH_EON
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by EON.
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config SPI_FLASH_GIGADEVICE
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by Gigadevice.
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config SPI_FLASH_MACRONIX
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by Macronix.
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config SPI_FLASH_SPANSION
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by Spansion.
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config SPI_FLASH_SST
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by SST.
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config SPI_FLASH_STMICRO
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by ST MICRO.
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config SPI_FLASH_WINBOND
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bool
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default y if SPI_FLASH_INCLUDE_ALL_DRIVERS
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help
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Select this option if your chipset driver needs to store certain
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data in the SPI flash and your SPI flash is made by Winbond.
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config SPI_FLASH_FAST_READ_DUAL_OUTPUT_3B
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bool
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default n
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depends on SPI_FLASH
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help
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Select this option if your SPI flash supports the fast read dual-
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output command (opcode 0x3b) where the opcode and address are sent
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to the chip on MOSI and data is received on both MOSI and MISO.
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endif # SPI_FLASH
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config HAVE_SPI_CONSOLE_SUPPORT
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def_bool n
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