Searched hist:"0 bcc4bf063b2843a2e9897c0477f7ad4609ae06d" (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/arch/arm64/boot/dts/freescale/ |
| H A D | imx8mq-librem5.dtsi | diff 0bcc4bf063b2843a2e9897c0477f7ad4609ae06d Sat Dec 18 12:18:08 CST 2021 Lucas Stach <dev@lynxeye.de> arm64: dts: imx8mq: disable DDRC node by default
Without a OPP table or a downstream TF-A running on the system the DDRC will
fail to probe, as it has no means to scale the DRAM frequency in that case.
This however will block the bus scaling driver to come up and this in turn
prevents other devices that hook into the interconnect from probing.
If the DDRC is disabled, the interconnect driver will simply ignore it. As
most systems don't want to scale the DRAM frequency, disable the node by
default and only enable it on the systems that actually uses this
capability and provides a valid OPP table in the DT.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
|
| H A D | imx8mq-evk.dts | diff 0bcc4bf063b2843a2e9897c0477f7ad4609ae06d Sat Dec 18 12:18:08 CST 2021 Lucas Stach <dev@lynxeye.de> arm64: dts: imx8mq: disable DDRC node by default
Without a OPP table or a downstream TF-A running on the system the DDRC will
fail to probe, as it has no means to scale the DRAM frequency in that case.
This however will block the bus scaling driver to come up and this in turn
prevents other devices that hook into the interconnect from probing.
If the DDRC is disabled, the interconnect driver will simply ignore it. As
most systems don't want to scale the DRAM frequency, disable the node by
default and only enable it on the systems that actually uses this
capability and provides a valid OPP table in the DT.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
|
| H A D | imx8mq.dtsi | diff 0bcc4bf063b2843a2e9897c0477f7ad4609ae06d Sat Dec 18 12:18:08 CST 2021 Lucas Stach <dev@lynxeye.de> arm64: dts: imx8mq: disable DDRC node by default
Without a OPP table or a downstream TF-A running on the system the DDRC will
fail to probe, as it has no means to scale the DRAM frequency in that case.
This however will block the bus scaling driver to come up and this in turn
prevents other devices that hook into the interconnect from probing.
If the DDRC is disabled, the interconnect driver will simply ignore it. As
most systems don't want to scale the DRAM frequency, disable the node by
default and only enable it on the systems that actually uses this
capability and provides a valid OPP table in the DT.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
|