diff options
| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-11-22 23:45:04 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2019-12-09 09:22:26 +0800 |
| commit | 0376f6ec9eb8690e8efcf37e4ae2e0a7cc0fef1d (patch) | |
| tree | 9a90b0b1ec17d748c499bb846098dbf34097676c /arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | |
| parent | 0f93eb28ff3a348818509aac7850a8f6df114a3f (diff) | |
arm64: dts: imx8m: Add ddr controller nodes
This is used by the imx-ddrc devfreq driver to implement dynamic
frequency scaling of DRAM.
Support for proactive scaling via interconnect will come later. The
high-performance bus masters which need that (display, vpu, gpu) are
mostly not yet enabled in upstream anyway.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts index 071949412caf..2497eebb5739 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts @@ -17,6 +17,26 @@ cpu-supply = <&buck2_reg>; }; +&ddrc { + operating-points-v2 = <&ddrc_opp_table>; + + ddrc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-25M { + opp-hz = /bits/ 64 <25000000>; + }; + + opp-100M { + opp-hz = /bits/ 64 <100000000>; + }; + + opp-600M { + opp-hz = /bits/ 64 <600000000>; + }; + }; +}; + &i2c1 { pmic@4b { compatible = "rohm,bd71847"; |