Recent device trees have the syscon-reboot and syscon-poweroff nodes as
children of the node claimed by expower(4). That node also fained a
"syscon" compatible in the process. Deal with these changes,

ok patrick@

Move exuart(4) to sys/dev/fdt so it can be shared between arm64 and armv7.

ok kettenis@

Use regmap interface to tweak "SYSREG" PHY configuration registers and
remove exsysreg(4). The exsysreg(4) driver would no longer attach
as syscon(4) would match its node in the device tree. As a result the
driver corss-call would panic.

Makes te Odroid-XU4 work again.

Remove exesdhc(4). This driver was never finished and has been replaced
by dwmmc(4).

Add glue to attach xhci(4) on exynos.

De-platformize exynos. Disable exdisplay(4) for now.

Attach exiic(4) using the FDT.

Turn exgpio(4) into a pinctrl driver.

Convert a few exynos drivers to attach using the FDT.

Dynamically attach exuart using the FDT.

Rework mainbus and implement simplebus to be able to span a tree-like
topology based on device tree information. Introduce a common attach
args structure to be used for all fdt-capable bus devices.

ok jsg@ kettenis@

New FDT-enabled busses will use a new "fdt" attribute. Unfortunately
this attribute is currently already defined. This define is only used
to disable the unused FDT functionality in the exynos and virtio code.
As the FDT code will be developed in a different manner than the way
those drivers are written today and the functionality has never been
enabled, simply remove the attribute and its users.

ok jsg@

Initial exynos4 bits. Among other things the gic isn't mapped correctly
on exynos4/5 yet as it isn't at the usual offset from periphbase.
ok bmercer@

Import the exynos work into tree. This is from Bitrig. Discussed with and OK jsg, also OK from krw.

Move exuart(4) to sys/dev/fdt so it can be shared between arm64 and armv7.

ok kettenis@

Use regmap interface to tweak "SYSREG" PHY configuration registers and
remove exsysreg(4). The exsysreg(4) driver would no longer attach
as syscon(4) would match its node in the device tree. As a result the
driver corss-call would panic.

Makes te Odroid-XU4 work again.

Remove exesdhc(4). This driver was never finished and has been replaced
by dwmmc(4).

Add glue to attach xhci(4) on exynos.

De-platformize exynos. Disable exdisplay(4) for now.

Attach exiic(4) using the FDT.

Turn exgpio(4) into a pinctrl driver.

Convert a few exynos drivers to attach using the FDT.

Dynamically attach exuart using the FDT.

Rework mainbus and implement simplebus to be able to span a tree-like
topology based on device tree information. Introduce a common attach
args structure to be used for all fdt-capable bus devices.

ok jsg@ kettenis@

New FDT-enabled busses will use a new "fdt" attribute. Unfortunately
this attribute is currently already defined. This define is only used
to disable the unused FDT functionality in the exynos and virtio code.
As the FDT code will be developed in a different manner than the way
those drivers are written today and the functionality has never been
enabled, simply remove the attribute and its users.

ok jsg@

Initial exynos4 bits. Among other things the gic isn't mapped correctly
on exynos4/5 yet as it isn't at the usual offset from periphbase.
ok bmercer@

Import the exynos work into tree. This is from Bitrig. Discussed with and OK jsg, also OK from krw.

Use regmap interface to tweak "SYSREG" PHY configuration registers and
remove exsysreg(4). The exsysreg(4) driver would no longer attach
as syscon(4) would match its node in the device tree. As a result the
driver corss-call would panic.

Makes te Odroid-XU4 work again.

Remove exesdhc(4). This driver was never finished and has been replaced
by dwmmc(4).

Add glue to attach xhci(4) on exynos.

De-platformize exynos. Disable exdisplay(4) for now.

Attach exiic(4) using the FDT.

Turn exgpio(4) into a pinctrl driver.

Convert a few exynos drivers to attach using the FDT.

Dynamically attach exuart using the FDT.

Rework mainbus and implement simplebus to be able to span a tree-like
topology based on device tree information. Introduce a common attach
args structure to be used for all fdt-capable bus devices.

ok jsg@ kettenis@

New FDT-enabled busses will use a new "fdt" attribute. Unfortunately
this attribute is currently already defined. This define is only used
to disable the unused FDT functionality in the exynos and virtio code.
As the FDT code will be developed in a different manner than the way
those drivers are written today and the functionality has never been
enabled, simply remove the attribute and its users.

ok jsg@

Initial exynos4 bits. Among other things the gic isn't mapped correctly
on exynos4/5 yet as it isn't at the usual offset from periphbase.
ok bmercer@

Import the exynos work into tree. This is from Bitrig. Discussed with and OK jsg, also OK from krw.