diff options
| author | Clement Faure <clement.faure@nxp.com> | 2018-04-13 11:11:36 +0200 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:31:22 +0800 |
| commit | c180569c63d047816aa00a49b38ff6bdcf0e4404 (patch) | |
| tree | 5d64a2511e05eb15d2225f0cd3bae02f63f12b3c /arch/arm/boot/dts/imx7d.dtsi | |
| parent | d6f6f7e13e62065ac1a9543eb0e675c565576c98 (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>
Diffstat (limited to 'arch/arm/boot/dts/imx7d.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/imx7d.dtsi | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi index 939584bddd04..3b76c80d8b4e 100644 --- a/arch/arm/boot/dts/imx7d.dtsi +++ b/arch/arm/boot/dts/imx7d.dtsi @@ -1,7 +1,7 @@ /* * Copyright 2015-2016 Freescale Semiconductor, Inc. * Copyright 2016 Toradex AG - * Copyright 2017 NXP. + * Copyright 2017-2018 NXP * * This file is dual-licensed: you can use it either under the terms * of the GPL or the X11 license, at your option. Note that this dual @@ -160,6 +160,15 @@ reg = <0x00900000 0x20000>; clocks = <&clks IMX7D_OCRAM_CLK>; }; + + ocram_optee { + compatible = "fsl,optee-lpm-sram"; + reg = <0x00180000 0x8000>; + overw_reg = <&ocrams_ddr 0x00904000 0x1000>, + <&ocram 0x00905000 0x1b000>, + <&ocrams 0x00900000 0x4000>; + overw_clock = <&ocrams &clks IMX7D_OCRAM_CLK>; + }; }; }; |