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| author | Stephen Warren <swarren@nvidia.com> | 2016-06-17 09:43:58 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-06-19 17:05:55 -0600 |
| commit | 89c1e2da78f82a09685006291ce8bb44f635fa25 (patch) | |
| tree | 4962e19a65e7cf8caf997ee92ec16030dead512a /drivers/reset/Kconfig | |
| parent | 0f67e2395be44db2c1bef17b6ada2e46221908ed (diff) | |
| download | u-boot-imx-89c1e2da78f82a09685006291ce8bb44f635fa25.zip u-boot-imx-89c1e2da78f82a09685006291ce8bb44f635fa25.tar.gz u-boot-imx-89c1e2da78f82a09685006291ce8bb44f635fa25.tar.bz2 | |
Add a reset driver framework/uclass
A reset controller is a hardware module that controls reset signals that
affect other hardware modules or chips.
This patch defines a standard API that connects reset clients (i.e. the
drivers for devices affected by reset signals) to drivers for reset
controllers/providers. Initially, DT is the only supported method for
connecting the two.
The DT binding specification (reset.txt) was taken from Linux kernel
v4.5's Documentation/devicetree/bindings/reset/reset.txt.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/reset/Kconfig')
| -rw-r--r-- | drivers/reset/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig new file mode 100644 index 0000000..5c449a9 --- /dev/null +++ b/drivers/reset/Kconfig @@ -0,0 +1,15 @@ +menu "Reset Controller Support" + +config DM_RESET + bool "Enable reset controllers using Driver Model" + depends on DM && OF_CONTROL + help + Enable support for the reset controller driver class. Many hardware + modules are equipped with a reset signal, typically driven by some + reset controller hardware module within the chip. In U-Boot, reset + controller drivers allow control over these reset signals. In some + cases this API is applicable to chips outside the CPU as well, + although driving such reset isgnals using GPIOs may be more + appropriate in this case. + +endmenu |