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https://github.com/u-boot/u-boot.git
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05ef48a248
This patch provides * a uclass for EFI drivers * a EFI driver for block devices For each EFI driver the uclass * creates a handle * adds the driver binding protocol The uclass provides the bind, start, and stop entry points for the driver binding protocol. In bind() and stop() it checks if the controller implements the protocol supported by the EFI driver. In the start() function it calls the bind() function of the EFI driver. In the stop() function it destroys the child controllers. The EFI block driver binds to controllers implementing the block io protocol. When the bind function of the EFI block driver is called it creates a new U-Boot block device. It installs child handles for all partitions and installs the simple file protocol on these. The read and write functions of the EFI block driver delegate calls to the controller that it is bound to. A usage example is as following: U-Boot loads the iPXE snp.efi executable. iPXE connects an iSCSI drive and exposes a handle with the block IO protocol. It calls ConnectController. Now the EFI block driver installs the partitions with the simple file protocol. iPXE uses the simple file protocol to load Grub or the Linux Kernel. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> [agraf: add comment on calloc len] Signed-off-by: Alexander Graf <agraf@suse.de>
114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
/*
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* Copyright 2012 Texas Instruments
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*
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* This file is licensed under the terms of the GNU General Public
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* License Version 2. This file is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __CONFIG_FALLBACKS_H
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#define __CONFIG_FALLBACKS_H
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#ifdef CONFIG_SPL
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#ifdef CONFIG_SPL_PAD_TO
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#ifdef CONFIG_SPL_MAX_SIZE
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#if CONFIG_SPL_PAD_TO && CONFIG_SPL_PAD_TO < CONFIG_SPL_MAX_SIZE
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#error CONFIG_SPL_PAD_TO < CONFIG_SPL_MAX_SIZE
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#endif
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#endif
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#else
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#ifdef CONFIG_SPL_MAX_SIZE
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#define CONFIG_SPL_PAD_TO CONFIG_SPL_MAX_SIZE
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#else
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#define CONFIG_SPL_PAD_TO 0
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#endif
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#endif
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#endif
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#ifndef CONFIG_SYS_BAUDRATE_TABLE
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#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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#endif
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#if defined(CONFIG_ENV_IS_IN_FAT) && !defined(CONFIG_FS_FAT)
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#define CONFIG_FS_FAT
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#endif
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#if (defined(CONFIG_CMD_EXT4) || defined(CONFIG_CMD_EXT2)) && \
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!defined(CONFIG_FS_EXT4)
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#define CONFIG_FS_EXT4
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#endif
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#if defined(CONFIG_CMD_EXT4_WRITE) && !defined(CONFIG_EXT4_WRITE)
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#define CONFIG_EXT4_WRITE
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#endif
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/* Rather than repeat this expression each time, add a define for it */
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#if defined(CONFIG_IDE) || \
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defined(CONFIG_SATA) || \
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defined(CONFIG_SCSI) || \
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defined(CONFIG_CMD_USB) || \
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defined(CONFIG_CMD_PART) || \
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defined(CONFIG_CMD_GPT) || \
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defined(CONFIG_MMC) || \
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defined(CONFIG_NVME) || \
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defined(CONFIG_SYSTEMACE) || \
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(defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)) || \
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defined(CONFIG_SANDBOX)
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#define HAVE_BLOCK_DEVICE
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#endif
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#if (CONFIG_IS_ENABLED(PARTITION_UUIDS) || \
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CONFIG_IS_ENABLED(EFI_PARTITION) || \
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CONFIG_IS_ENABLED(EFI_LOADER) || \
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defined(CONFIG_RANDOM_UUID) || \
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defined(CONFIG_CMD_UUID) || \
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defined(CONFIG_BOOTP_PXE)) && \
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!defined(CONFIG_LIB_UUID)
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#define CONFIG_LIB_UUID
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#endif
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#if (defined(CONFIG_RANDOM_UUID) || \
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defined(CONFIG_CMD_UUID)) && \
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(!defined(CONFIG_LIB_RAND) && \
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!defined(CONFIG_LIB_HW_RAND))
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#define CONFIG_LIB_RAND
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#endif
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/* Console I/O Buffer Size */
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#ifndef CONFIG_SYS_CBSIZE
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#if defined(CONFIG_CMD_KGDB)
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#define CONFIG_SYS_CBSIZE 1024
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#else
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#define CONFIG_SYS_CBSIZE 256
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#endif
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#endif
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#ifndef CONFIG_SYS_PBSIZE
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
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#endif
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#ifndef CONFIG_SYS_MAXARGS
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#define CONFIG_SYS_MAXARGS 16
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#endif
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#ifndef CONFIG_FIT_SIGNATURE
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#define CONFIG_IMAGE_FORMAT_LEGACY
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#endif
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#ifdef CONFIG_DISABLE_IMAGE_LEGACY
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#undef CONFIG_IMAGE_FORMAT_LEGACY
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#endif
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#ifdef CONFIG_DM_I2C
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# ifdef CONFIG_SYS_I2C
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# error "Cannot define CONFIG_SYS_I2C when CONFIG_DM_I2C is used"
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# endif
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#endif
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#ifndef CONFIG_CMDLINE
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#undef CONFIG_CMDLINE_EDITING
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#undef CONFIG_SYS_LONGHELP
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#endif
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#endif /* __CONFIG_FALLBACKS_H */
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