diff options
| -rw-r--r-- | arch/arm/boot/dts/meson8.dtsi | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi index 6687b1b4c7c9..df79a34a3530 100644 --- a/arch/arm/boot/dts/meson8.dtsi +++ b/arch/arm/boot/dts/meson8.dtsi @@ -83,6 +83,33 @@ reg = <0x203>; }; }; + + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + /* 2 MiB reserved for Hardware ROM Firmware? */ + hwrom@0 { + reg = <0x0 0x200000>; + no-map; + }; + + /* + * 1 MiB reserved for the "ARM Power Firmware": this is ARM + * code which is responsible for system suspend. It loads a + * piece of ARC code ("arc_power" in the vendor u-boot tree) + * into SRAM, executes that and shuts down the (last) ARM core. + * The arc_power firmware then checks various wakeup sources + * (IR remote receiver, HDMI CEC, WIFI and Bluetooth wakeup or + * simply the power key) and re-starts the ARM core once it + * detects a wakeup request. + */ + power-firmware@4f00000 { + reg = <0x4f00000 0x100000>; + no-map; + }; + }; }; /* end of / */ &aobus { |