d3d1ae5758
The S805X is a variant of the Amlogic Meson GXL SoC family with the following physical limitations : - No SDCard interface - No GPIOCLK pins - No USB OTG ID pin (but Gadget feature can stil be forced) - No 5V regulator - Reduced ADC inputs (only ADC0 and ADC1) - GPIODV_26, GPIOAO_3, GPIOAO_4, GPIOAO_5, GPIOAO_6, GPIOX_14, GPIOX_15, GPIOH_3 are no more exposed on the package Amlogic exposes the following SW limitations : - HDMI max resolution should be 1080p60, VPU clock should be downgraded - Video Decoding should be limited to 1080p60, VDEC clock should be downgraded - CPU speed should be limited by SCPI OPP table to 1.2GHz - DRAM interface is limited to DDR4 16bit up to 1GiB Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
125 lines
4.0 KiB
Plaintext
125 lines
4.0 KiB
Plaintext
Amlogic MesonX device tree bindings
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-------------------------------------------
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Work in progress statement:
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Device tree files and bindings applying to Amlogic SoCs and boards are
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considered "unstable". Any Amlogic device tree binding may change at
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any time. Be sure to use a device tree binary and a kernel image
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generated from the same source tree.
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Please refer to Documentation/devicetree/bindings/ABI.txt for a definition of a
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stable binding/ABI.
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---------------------------------------------------------------
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Boards with the Amlogic Meson6 SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,meson6"
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Boards with the Amlogic Meson8 SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,meson8";
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Boards with the Amlogic Meson8b SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,meson8b";
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Boards with the Amlogic Meson8m2 SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,meson8m2";
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Boards with the Amlogic Meson GXBaby SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,meson-gxbb";
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Boards with the Amlogic Meson GXL S905X SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,s905x", "amlogic,meson-gxl";
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Boards with the Amlogic Meson GXL S905D SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,s905d", "amlogic,meson-gxl";
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Boards with the Amlogic Meson GXL S805X SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,s805x", "amlogic,meson-gxl";
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Boards with the Amlogic Meson GXM S912 SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,s912", "amlogic,meson-gxm";
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Boards with the Amlogic Meson AXG A113D SoC shall have the following properties:
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Required root node property:
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compatible: "amlogic,a113d", "amlogic,meson-axg";
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Board compatible values (alphabetically, grouped by SoC):
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- "geniatech,atv1200" (Meson6)
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- "minix,neo-x8" (Meson8)
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- "hardkernel,odroid-c1" (Meson8b)
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- "tronfy,mxq" (Meson8b)
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- "tronsmart,mxiii-plus" (Meson8m2)
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- "amlogic,p200" (Meson gxbb)
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- "amlogic,p201" (Meson gxbb)
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- "friendlyarm,nanopi-k2" (Meson gxbb)
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- "hardkernel,odroid-c2" (Meson gxbb)
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- "nexbox,a95x" (Meson gxbb or Meson gxl s905x)
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- "tronsmart,vega-s95-pro", "tronsmart,vega-s95" (Meson gxbb)
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- "tronsmart,vega-s95-meta", "tronsmart,vega-s95" (Meson gxbb)
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- "tronsmart,vega-s95-telos", "tronsmart,vega-s95" (Meson gxbb)
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- "wetek,hub" (Meson gxbb)
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- "wetek,play2" (Meson gxbb)
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- "amlogic,p212" (Meson gxl s905x)
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- "hwacom,amazetv" (Meson gxl s905x)
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- "khadas,vim" (Meson gxl s905x)
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- "libretech,cc" (Meson gxl s905x)
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- "amlogic,p230" (Meson gxl s905d)
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- "amlogic,p231" (Meson gxl s905d)
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- "amlogic,p241" (Meson gxl s805x)
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- "amlogic,q200" (Meson gxm s912)
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- "amlogic,q201" (Meson gxm s912)
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- "khadas,vim2" (Meson gxm s912)
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- "kingnovel,r-box-pro" (Meson gxm S912)
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- "nexbox,a1" (Meson gxm s912)
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- "tronsmart,vega-s96" (Meson gxm s912)
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- "amlogic,s400" (Meson axg a113d)
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Amlogic Meson Firmware registers Interface
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------------------------------------------
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The Meson SoCs have a register bank with status and data shared with the
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secure firmware.
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Required properties:
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- compatible: For Meson GX SoCs, must be "amlogic,meson-gx-ao-secure", "syscon"
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Properties should indentify components of this register interface :
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Meson GX SoC Information
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------------------------
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A firmware register encodes the SoC type, package and revision information on
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the Meson GX SoCs.
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If present, the following property should be added :
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Optional properties:
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- amlogic,has-chip-id: If present, the interface gives the current SoC version.
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Example
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-------
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ao-secure@140 {
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compatible = "amlogic,meson-gx-ao-secure", "syscon";
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reg = <0x0 0x140 0x0 0x140>;
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amlogic,has-chip-id;
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};
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