mirror of
https://github.com/AsahiLinux/u-boot
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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>
98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/*
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* Copyright (c) 2013 Google, Inc
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*
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* (C) Copyright 2012
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* Pavel Herrmann <morpheus.ibis@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _DM_UCLASS_ID_H
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#define _DM_UCLASS_ID_H
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/* TODO(sjg@chromium.org): this could be compile-time generated */
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enum uclass_id {
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/* These are used internally by driver model */
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UCLASS_ROOT = 0,
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UCLASS_DEMO,
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UCLASS_TEST,
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UCLASS_TEST_FDT,
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UCLASS_TEST_BUS,
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UCLASS_TEST_PROBE,
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UCLASS_SPI_EMUL, /* sandbox SPI device emulator */
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UCLASS_I2C_EMUL, /* sandbox I2C device emulator */
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UCLASS_PCI_EMUL, /* sandbox PCI device emulator */
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UCLASS_USB_EMUL, /* sandbox USB bus device emulator */
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UCLASS_SIMPLE_BUS, /* bus with child devices */
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/* U-Boot uclasses start here - in alphabetical order */
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UCLASS_ADC, /* Analog-to-digital converter */
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UCLASS_AHCI, /* SATA disk controller */
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UCLASS_BLK, /* Block device */
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UCLASS_CLK, /* Clock source, e.g. used by peripherals */
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UCLASS_CPU, /* CPU, typically part of an SoC */
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UCLASS_CROS_EC, /* Chrome OS EC */
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UCLASS_DISPLAY, /* Display (e.g. DisplayPort, HDMI) */
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UCLASS_DMA, /* Direct Memory Access */
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UCLASS_EFI, /* EFI managed devices */
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UCLASS_ETH, /* Ethernet device */
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UCLASS_GPIO, /* Bank of general-purpose I/O pins */
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UCLASS_FIRMWARE, /* Firmware */
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UCLASS_I2C, /* I2C bus */
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UCLASS_I2C_EEPROM, /* I2C EEPROM device */
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UCLASS_I2C_GENERIC, /* Generic I2C device */
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UCLASS_I2C_MUX, /* I2C multiplexer */
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UCLASS_IDE, /* IDE device */
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UCLASS_IRQ, /* Interrupt controller */
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UCLASS_KEYBOARD, /* Keyboard input device */
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UCLASS_LED, /* Light-emitting diode (LED) */
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UCLASS_LPC, /* x86 'low pin count' interface */
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UCLASS_MAILBOX, /* Mailbox controller */
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UCLASS_MASS_STORAGE, /* Mass storage device */
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UCLASS_MISC, /* Miscellaneous device */
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UCLASS_MMC, /* SD / MMC card or chip */
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UCLASS_MOD_EXP, /* RSA Mod Exp device */
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UCLASS_MTD, /* Memory Technology Device (MTD) device */
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UCLASS_NORTHBRIDGE, /* Intel Northbridge / SDRAM controller */
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UCLASS_NVME, /* NVM Express device */
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UCLASS_PANEL, /* Display panel, such as an LCD */
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UCLASS_PANEL_BACKLIGHT, /* Backlight controller for panel */
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UCLASS_PCH, /* x86 platform controller hub */
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UCLASS_PCI, /* PCI bus */
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UCLASS_PCI_GENERIC, /* Generic PCI bus device */
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UCLASS_PHY, /* Physical Layer (PHY) device */
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UCLASS_PINCONFIG, /* Pin configuration node device */
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UCLASS_PINCTRL, /* Pinctrl (pin muxing/configuration) device */
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UCLASS_PMIC, /* PMIC I/O device */
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UCLASS_PWM, /* Pulse-width modulator */
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UCLASS_POWER_DOMAIN, /* (SoC) Power domains */
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UCLASS_PWRSEQ, /* Power sequence device */
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UCLASS_RAM, /* RAM controller */
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UCLASS_REGULATOR, /* Regulator device */
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UCLASS_REMOTEPROC, /* Remote Processor device */
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UCLASS_RESET, /* Reset controller device */
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UCLASS_RTC, /* Real time clock device */
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UCLASS_SCSI, /* SCSI device */
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UCLASS_SERIAL, /* Serial UART */
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UCLASS_SPI, /* SPI bus */
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UCLASS_SPMI, /* System Power Management Interface bus */
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UCLASS_SPI_FLASH, /* SPI flash */
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UCLASS_SPI_GENERIC, /* Generic SPI flash target */
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UCLASS_SYSCON, /* System configuration device */
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UCLASS_SYSRESET, /* System reset device */
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UCLASS_THERMAL, /* Thermal sensor */
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UCLASS_TIMER, /* Timer device */
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UCLASS_TPM, /* Trusted Platform Module TIS interface */
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UCLASS_USB, /* USB bus */
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UCLASS_USB_DEV_GENERIC, /* USB generic device */
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UCLASS_USB_HUB, /* USB hub */
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UCLASS_VIDEO, /* Video or LCD device */
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UCLASS_VIDEO_BRIDGE, /* Video bridge, e.g. DisplayPort to LVDS */
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UCLASS_VIDEO_CONSOLE, /* Text console driver for video device */
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UCLASS_WDT, /* Watchdot Timer driver */
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UCLASS_COUNT,
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UCLASS_INVALID = -1,
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};
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#endif
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