| Message ID | 20201210100906.18205-1-martin.kepplinger@puri.sm |
|---|---|
| Headers | show |
| Series | imx8mq: updates for the interconnect fabric | expand |
On 12/10/20 12:09, Martin Kepplinger wrote: > From: Leonard Crestez <leonard.crestez@nxp.com> > > Add initial support for dynamic frequency scaling of the main NOC > on imx8mq. > > Make DDRC the parent of the NOC (using passive governor) so that the > main NOC is automatically scaled together with DDRC by default. > > Support for proactive scaling via interconnect will come on top. > > Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> > Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Georgi Djakov <georgi.djakov@linaro.org> > --- > arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi > index a841a023e8e0..9c9d68a14e69 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi > @@ -1158,6 +1158,28 @@ > }; > }; > > + noc: interconnect@32700000 { > + compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc"; > + reg = <0x32700000 0x100000>; > + clocks = <&clk IMX8MQ_CLK_NOC>; > + fsl,ddrc = <&ddrc>; > + operating-points-v2 = <&noc_opp_table>; > + > + noc_opp_table: opp-table { > + compatible = "operating-points-v2"; > + > + opp-133M { > + opp-hz = /bits/ 64 <133333333>; > + }; > + opp-400M { > + opp-hz = /bits/ 64 <400000000>; > + }; > + opp-800M { > + opp-hz = /bits/ 64 <800000000>; > + }; > + }; > + }; > + > bus@32c00000 { /* AIPS4 */ > compatible = "fsl,aips-bus", "simple-bus"; > reg = <0x32c00000 0x400000>; >
On 12/10/20 12:09, Martin Kepplinger wrote: > Add #interconnect-cells on main &noc so that it will probe the interconnect > provider. > > Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Acked-by: Georgi Djakov <georgi.djakov@linaro.org> > --- > arch/arm64/boot/dts/freescale/imx8mq.dtsi | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi > index 9c9d68a14e69..3617b7238952 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi > @@ -1163,6 +1163,7 @@ > reg = <0x32700000 0x100000>; > clocks = <&clk IMX8MQ_CLK_NOC>; > fsl,ddrc = <&ddrc>; > + #interconnect-cells = <1>; > operating-points-v2 = <&noc_opp_table>; > > noc_opp_table: opp-table { >
revision history: v3: (thanks Krysztof and Georgi) * drop the defconfig cycling patch and fix the interconnect enable config * add the noc node to imx8mq only and use correct properties * add missing signed-off-by v2: (thanks Lucas) * reorder and clean up defconfig changes * use "dram" for the interconnect path name and document it * https://lore.kernel.org/linux-arm-kernel/20201201123932.12312-1-martin.kepplinger@puri.sm/T/#t v1: * link: https://lore.kernel.org/linux-arm-kernel/20201201100124.4676-1-martin.kepplinger@puri.sm/T/ thanks, martin Leonard Crestez (1): arm64: dts: imx8mq: Add NOC node Martin Kepplinger (5): arm64: dts: imx8mq: Add interconnect provider property arm64: dts: imx8mq: Add interconnect for lcdif dt-bindings: mxsfb: Add interconnect bindings for LCDIF path interconnect: imx8mq: Use icc_sync_state arm64: defconfig: Enable interconnect for imx8mq .../devicetree/bindings/display/mxsfb.txt | 6 +++++ arch/arm64/boot/dts/freescale/imx8mq.dtsi | 26 +++++++++++++++++++ arch/arm64/configs/defconfig | 2 ++ drivers/interconnect/imx/imx8mq.c | 2 ++ 4 files changed, 36 insertions(+)