diff options
| author | Simon Glass <sjg@chromium.org> | 2020-02-06 09:55:01 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-02-07 22:46:35 +0800 |
| commit | e85cbe8b34147126cdd5dab09f4c745157f6083c (patch) | |
| tree | c10d0fddb089e0a89e446b4dc33d770c2ec55a68 /arch/x86/Kconfig | |
| parent | 025543554c36615a66d66c154f3f763ac788ee15 (diff) | |
| download | u-boot-e85cbe8b34147126cdd5dab09f4c745157f6083c.tar.gz | |
x86: Add support for ACPI general-purpose events
ACPI GPEs are used to signal interrupts from peripherals that are accessed
via ACPI. In U-Boot these are modelled as interrupts using a separate
interrupt controller. Configuration is via the device tree.
Add a simple driver for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b3fbf306f7..c8eae24c07 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -923,4 +923,37 @@ config X86_OFFSET_SPL depends on SPL && X86 default SPL_TEXT_BASE +config ACPI_GPE + bool "Support ACPI general-purpose events" + help + Enable a driver for ACPI GPEs to allow peripherals to send interrupts + via ACPI to the OS. In U-Boot this is only used when U-Boot itself + needs access to these interrupts. This can happen when it uses a + peripheral that is set up to use GPEs and so cannot use the normal + GPIO mechanism for polling an input. + + See https://queue.acm.org/blogposting.cfm?id=18977 for more info + +config SPL_ACPI_GPE + bool "Support ACPI general-purpose events in SPL" + help + Enable a driver for ACPI GPEs to allow peripherals to send interrupts + via ACPI to the OS. In U-Boot this is only used when U-Boot itself + needs access to these interrupts. This can happen when it uses a + peripheral that is set up to use GPEs and so cannot use the normal + GPIO mechanism for polling an input. + + See https://queue.acm.org/blogposting.cfm?id=18977 for more info + +config TPL_ACPI_GPE + bool "Support ACPI general-purpose events in TPL" + help + Enable a driver for ACPI GPEs to allow peripherals to send interrupts + via ACPI to the OS. In U-Boot this is only used when U-Boot itself + needs access to these interrupts. This can happen when it uses a + peripheral that is set up to use GPEs and so cannot use the normal + GPIO mechanism for polling an input. + + See https://queue.acm.org/blogposting.cfm?id=18977 for more info + endmenu |