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path: root/drivers/firmware/imx
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2019-02-11firmware: imx: Add support to start/stop a CPUDaniel Baluta
This is done via RPC call to SCU. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-01-12firmware: imx: scu-pd: add fallback compatible string supportAisheng Dong
SCU power domain can be used in the same way by IMX8QXP and IMX8QM SoCs. Make the driver support the fallback compatible string "fsl,scu-pd" to allow other SoCs to reuse the common part. Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Kevin Hilman <khilman@kernel.org> Cc: linux-pm@vger.kernel.org Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-11-14firmware: imx: add SCU power domain driverA.s. Dong
Some i.MX SoCs contain a system controller that is responsible for controlling the state of the IPs that are present. Communication between the host processor running an OS and the system controller happens through a SCU protocol. This patch adds SCU protocol based power domains drivers. Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Kevin Hilman <khilman@kernel.org> Cc: linux-pm@vger.kernel.org Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-08firmware: imx: add misc svc supportDong Aisheng
Add SCU MISC SVC support which provides misc control get/set functions. Cc: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-08firmware: imx: add SCU firmware driver supportDong Aisheng
The System Controller Firmware (SCFW) is a low-level system function which runs on a dedicated Cortex-M core to provide power, clock, and resource management. It exists on some i.MX8 processors. e.g. i.MX8QM (QM, QP), and i.MX8QX (QXP, DX). This patch implements the SCU firmware IPC function and the common message sending API sc_call_rpc. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Jassi Brar <jassisinghbrar@gmail.com> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>