diff options
Diffstat (limited to 'drivers/of/Kconfig')
| -rw-r--r-- | drivers/of/Kconfig | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig new file mode 100644 index 000000000..5e1315900 --- /dev/null +++ b/drivers/of/Kconfig @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: GPL-2.0 +config DTC + bool + +menuconfig OF + bool "Device Tree and Open Firmware support" + help + This option enables the device tree infrastructure. + It is automatically selected by platforms that need it or can + be enabled manually for unittests, overlays or + compile-coverage. + +if OF + +config OF_UNITTEST + bool "Device Tree runtime unit tests" + depends on !SPARC + select IRQ_DOMAIN + select OF_EARLY_FLATTREE + select OF_RESOLVE + help + This option builds in test cases for the device tree infrastructure + that are executed once at boot time, and the results dumped to the + console. + + If unsure, say N here, but this option is safe to enable. + +config OF_ALL_DTBS + bool "Build all Device Tree Blobs" + depends on COMPILE_TEST + select DTC + help + This option builds all possible Device Tree Blobs (DTBs) for the + current architecture. + + If unsure, say N here, but this option is safe to enable. + +config OF_FLATTREE + bool + select DTC + select LIBFDT + select CRC32 + +config OF_EARLY_FLATTREE + bool + select OF_FLATTREE + +config OF_PROMTREE + bool + +config OF_KOBJ + def_bool SYSFS + +# Hardly any platforms need this. It is safe to select, but only do so if you +# need it. +config OF_DYNAMIC + bool "Support for dynamic device trees" if OF_UNITTEST + select OF_KOBJ + help + On some platforms, the device tree can be manipulated at runtime. + While this option is selected automatically on such platforms, you + can enable it manually to improve device tree unit test coverage. + +config OF_ADDRESS + def_bool y + depends on !SPARC && (HAS_IOMEM || UML) + +config OF_IRQ + def_bool y + depends on !SPARC && IRQ_DOMAIN + +config OF_NET + depends on NETDEVICES + def_bool y + +config OF_MDIO + def_tristate PHYLIB + depends on PHYLIB + select FIXED_PHY + help + OpenFirmware MDIO bus (Ethernet PHY) accessors + +config OF_RESERVED_MEM + depends on OF_EARLY_FLATTREE + bool + help + Helpers to allow for reservation of memory regions + +config OF_RESOLVE + bool + +config OF_OVERLAY + bool "Device Tree overlays" + select OF_DYNAMIC + select OF_FLATTREE + select OF_RESOLVE + help + Overlays are a method to dynamically modify part of the kernel's + device tree with dynamically loaded data. + While this option is selected automatically when needed, you can + enable it manually to improve device tree unit test coverage. + +config OF_NUMA + bool + +config OF_DMA_DEFAULT_COHERENT + # arches should select this if DMA is coherent by default for OF devices + bool + +endif # OF |