diff options
| author | Clement Faure <clement.faure@nxp.com> | 2018-04-13 11:11:36 +0200 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 16:09:18 +0800 |
| commit | c6aa28920d2cb25b9ce05a3784427b353c08fa7c (patch) | |
| tree | 648014b893c75ee39181388227dcfc1f0bbf4fce /arch/arm/boot/dts/imx7d.dtsi | |
| parent | e29d148d3b517b57b45124c0a12f963555ef9562 (diff) | |
MLK-18036-1 Add "fsl,optee-lpm-sram" node for optee os power management.
This node will be used by the OCRAM driver in optee to:
* Get the OCRAM start address for power management in optee.
* Add an entry that will overwrite ocrams nodes and dynamically reduce
the OCRAM available for mmio-sram in Linux.
That way we do not touch the legacy Linux boot and remove the dedicated
optee device tree.
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
[Arul: Fix merge conflicts]
Signed-off-by: Arulpandiyan Vadivel <arulpandiyan_vadivel@mentor.com>
Signed-off-by: Srikanth Krishnakar <Srikanth_Krishnakar@mentor.com>
Diffstat (limited to 'arch/arm/boot/dts/imx7d.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/imx7d.dtsi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi index 74a717440511..93206047e54f 100644 --- a/arch/arm/boot/dts/imx7d.dtsi +++ b/arch/arm/boot/dts/imx7d.dtsi @@ -103,6 +103,15 @@ status = "disabled"; }; + ocram_optee { + compatible = "fsl,optee-lpm-sram"; + reg = <0x180000 0x8000>; + overw_reg = <&ocrams_ddr 0x904000 0x1000>, + <&ocram 0x905000 0x1b000>, + <&ocrams 0x900000 0x4000>; + overw_clock = <&ocrams &clks IMX7D_OCRAM_CLK>; + }; + ocrams_mf: sram-mf@00900000 { compatible = "fsl,mega-fast-sram"; reg = <0x00900000 0x20000>; |