diff options
| author | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2020-06-29 18:18:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-18 13:01:10 +0200 |
| commit | abffc82aae8745810fce5b51d9787d82d381068b (patch) | |
| tree | c3cd0c8f8fffe405eb71ef27bb6f496546fe3eb6 /drivers/reset/Kconfig | |
| parent | 242841992ae6f22bd761add2f380b2ef3271ba9a (diff) | |
| download | lwn-abffc82aae8745810fce5b51d9787d82d381068b.tar.gz lwn-abffc82aae8745810fce5b51d9787d82d381068b.zip | |
reset: Add Raspberry Pi 4 firmware reset controller
Raspberry Pi 4's co-processor controls some of the board's HW
initialization process, but it's up to Linux to trigger it when
relevant. Introduce a reset controller capable of interfacing with
RPi4's co-processor that models these firmware initialization routines as
reset lines.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629161845.6021-3-nsaenzjulienne@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/reset/Kconfig')
| -rw-r--r-- | drivers/reset/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig index d9efbfd29646..97e848740e13 100644 --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -140,6 +140,17 @@ config RESET_QCOM_PDC to control reset signals provided by PDC for Modem, Compute, Display, GPU, Debug, AOP, Sensors, Audio, SP and APPS. +config RESET_RASPBERRYPI + tristate "Raspberry Pi 4 Firmware Reset Driver" + depends on RASPBERRYPI_FIRMWARE || (RASPBERRYPI_FIRMWARE=n && COMPILE_TEST) + default USB_XHCI_PCI + help + Raspberry Pi 4's co-processor controls some of the board's HW + initialization process, but it's up to Linux to trigger it when + relevant. This driver provides a reset controller capable of + interfacing with RPi4's co-processor and model these firmware + initialization routines as reset lines. + config RESET_SCMI tristate "Reset driver controlled via ARM SCMI interface" depends on ARM_SCMI_PROTOCOL || COMPILE_TEST |