forked from luck/tmp_suning_uos_patched
8c1b7dc9ba
In order to aid post-mortem debugging the Qualcomm platforms provide a "memory download mode", where the boot loader will provide an interface for custom tools to "download" the content of RAM to a host machine. The mode is triggered by writing a magic value somewhere in RAM, that is read in the boot code path after a warm-restart. Two mechanism for setting this magic value are supported in modern platforms; a direct SCM call to enable the mode or through a secure io write of a magic value. In order for a normal reboot not to trigger "download mode" the magic must be cleared during a clean reboot. Download mode has to be enabled by including qcom_scm.download_mode=1 on the command line. Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
254 lines
8.5 KiB
Plaintext
254 lines
8.5 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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menu "Firmware Drivers"
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config ARM_PSCI_FW
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bool
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config ARM_PSCI_CHECKER
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bool "ARM PSCI checker"
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depends on ARM_PSCI_FW && HOTPLUG_CPU && !TORTURE_TEST
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help
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Run the PSCI checker during startup. This checks that hotplug and
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suspend operations work correctly when using PSCI.
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The torture tests may interfere with the PSCI checker by turning CPUs
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on and off through hotplug, so for now torture tests and PSCI checker
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are mutually exclusive.
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config ARM_SCPI_PROTOCOL
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tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
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depends on ARM || ARM64 || COMPILE_TEST
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depends on MAILBOX
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help
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System Control and Power Interface (SCPI) Message Protocol is
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defined for the purpose of communication between the Application
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Cores(AP) and the System Control Processor(SCP). The MHU peripheral
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provides a mechanism for inter-processor communication between SCP
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and AP.
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SCP controls most of the power managament on the Application
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Processors. It offers control and management of: the core/cluster
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power states, various power domain DVFS including the core/cluster,
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certain system clocks configuration, thermal sensors and many
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others.
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This protocol library provides interface for all the client drivers
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making use of the features offered by the SCP.
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config ARM_SCPI_POWER_DOMAIN
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tristate "SCPI power domain driver"
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depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF)
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default y
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select PM_GENERIC_DOMAINS if PM
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help
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This enables support for the SCPI power domains which can be
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enabled or disabled via the SCP firmware
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config EDD
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tristate "BIOS Enhanced Disk Drive calls determine boot disk"
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depends on X86
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help
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Say Y or M here if you want to enable BIOS Enhanced Disk Drive
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Services real mode BIOS calls to determine which disk
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BIOS tries boot from. This information is then exported via sysfs.
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This option is experimental and is known to fail to boot on some
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obscure configurations. Most disk controller BIOS vendors do
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not yet implement this feature.
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config EDD_OFF
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bool "Sets default behavior for EDD detection to off"
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depends on EDD
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default n
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help
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Say Y if you want EDD disabled by default, even though it is compiled into the
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kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
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using the kernel parameter 'edd={on|skipmbr|off}'.
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config FIRMWARE_MEMMAP
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bool "Add firmware-provided memory map to sysfs" if EXPERT
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default X86
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help
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Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
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That memory map is used for example by kexec to set up parameter area
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for the next kernel, but can also be used for debugging purposes.
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See also Documentation/ABI/testing/sysfs-firmware-memmap.
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config EFI_PCDP
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bool "Console device selection via EFI PCDP or HCDP table"
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depends on ACPI && EFI && IA64
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default y if IA64
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help
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If your firmware supplies the PCDP table, and you want to
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automatically use the primary console device it describes
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as the Linux console, say Y here.
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If your firmware supplies the HCDP table, and you want to
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use the first serial port it describes as the Linux console,
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say Y here. If your EFI ConOut path contains only a UART
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device, it will become the console automatically. Otherwise,
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you must specify the "console=hcdp" kernel boot argument.
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Neither the PCDP nor the HCDP affects naming of serial devices,
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so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
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on how the driver discovers devices.
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You must also enable the appropriate drivers (serial, VGA, etc.)
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See DIG64_HCDPv20_042804.pdf available from
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<http://www.dig64.org/specifications/>
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config DELL_RBU
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tristate "BIOS update support for DELL systems via sysfs"
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depends on X86
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select FW_LOADER
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select FW_LOADER_USER_HELPER
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help
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Say m if you want to have the option of updating the BIOS for your
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DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
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supporting application to communicate with the BIOS regarding the new
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image for the image update to take effect.
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See <file:Documentation/dell_rbu.txt> for more details on the driver.
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config DCDBAS
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tristate "Dell Systems Management Base Driver"
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depends on X86
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help
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The Dell Systems Management Base Driver provides a sysfs interface
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for systems management software to perform System Management
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Interrupts (SMIs) and Host Control Actions (system power cycle or
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power off after OS shutdown) on certain Dell systems.
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See <file:Documentation/dcdbas.txt> for more details on the driver
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and the Dell systems on which Dell systems management software makes
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use of this driver.
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Say Y or M here to enable the driver for use by Dell systems
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management software such as Dell OpenManage.
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config DMIID
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bool "Export DMI identification via sysfs to userspace"
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depends on DMI
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default y
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help
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Say Y here if you want to query SMBIOS/DMI system identification
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information from userspace through /sys/class/dmi/id/ or if you want
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DMI-based module auto-loading.
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config DMI_SYSFS
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tristate "DMI table support in sysfs"
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depends on SYSFS && DMI
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default n
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help
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Say Y or M here to enable the exporting of the raw DMI table
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data via sysfs. This is useful for consuming the data without
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requiring any access to /dev/mem at all. Tables are found
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under /sys/firmware/dmi when this option is enabled and
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loaded.
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config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
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bool
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config ISCSI_IBFT_FIND
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bool "iSCSI Boot Firmware Table Attributes"
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depends on X86 && ACPI
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default n
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help
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This option enables the kernel to find the region of memory
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in which the ISCSI Boot Firmware Table (iBFT) resides. This
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is necessary for iSCSI Boot Firmware Table Attributes module to work
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properly.
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config ISCSI_IBFT
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tristate "iSCSI Boot Firmware Table Attributes module"
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select ISCSI_BOOT_SYSFS
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depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
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default n
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help
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This option enables support for detection and exposing of iSCSI
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Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
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detect iSCSI boot parameters dynamically during system boot, say Y.
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Otherwise, say N.
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config RASPBERRYPI_FIRMWARE
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tristate "Raspberry Pi Firmware Driver"
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depends on BCM2835_MBOX
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help
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This option enables support for communicating with the firmware on the
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Raspberry Pi.
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config FW_CFG_SYSFS
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tristate "QEMU fw_cfg device support in sysfs"
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depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
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depends on HAS_IOPORT_MAP
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default n
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help
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Say Y or M here to enable the exporting of the QEMU firmware
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configuration (fw_cfg) file entries via sysfs. Entries are
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found under /sys/firmware/fw_cfg when this option is enabled
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and loaded.
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config FW_CFG_SYSFS_CMDLINE
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bool "QEMU fw_cfg device parameter parsing"
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depends on FW_CFG_SYSFS
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help
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Allow the qemu_fw_cfg device to be initialized via the kernel
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command line or using a module parameter.
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WARNING: Using incorrect parameters (base address in particular)
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may crash your system.
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config QCOM_SCM
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bool
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depends on ARM || ARM64
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select RESET_CONTROLLER
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config QCOM_SCM_32
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def_bool y
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depends on QCOM_SCM && ARM
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config QCOM_SCM_64
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def_bool y
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depends on QCOM_SCM && ARM64
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config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
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bool "Qualcomm download mode enabled by default"
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depends on QCOM_SCM
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help
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A device with "download mode" enabled will upon an unexpected
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warm-restart enter a special debug mode that allows the user to
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"download" memory content over USB for offline postmortem analysis.
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The feature can be enabled/disabled on the kernel command line.
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Say Y here to enable "download mode" by default.
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config TI_SCI_PROTOCOL
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tristate "TI System Control Interface (TISCI) Message Protocol"
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depends on TI_MESSAGE_MANAGER
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help
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TI System Control Interface (TISCI) Message Protocol is used to manage
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compute systems such as ARM, DSP etc with the system controller in
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complex System on Chip(SoC) such as those found on certain keystone
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generation SoC from TI.
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System controller provides various facilities including power
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management function support.
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This protocol library is used by client drivers to use the features
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provided by the system controller.
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config HAVE_ARM_SMCCC
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bool
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source "drivers/firmware/broadcom/Kconfig"
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source "drivers/firmware/google/Kconfig"
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source "drivers/firmware/efi/Kconfig"
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source "drivers/firmware/meson/Kconfig"
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source "drivers/firmware/tegra/Kconfig"
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endmenu
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