Re: [PATCH v2] arm64: dts: freescale: imx93: Add Ethos-U65 NPU and SRAM nodes
From: Peter Robinson <hidden>
Date: 2026-03-09 08:39:30
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imx, linux-devicetree, lkml
On Fri, 6 Mar 2026 at 20:31, Rob Herring (Arm) [off-list ref] wrote:
i.MX93 contains an Arm Ethos-U65 NPU. The NPU uses the internal SRAM for temporary buffers. The SRAM is larger than 96KB, but that is all that is available to non-secure world. Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Peter Robinson <redacted> Tested-by: Peter Robinson <redacted> # Tested on a NXP i.MX93 11X11 FRDM board
quoted hunk ↗ jump to hunk
--- v2: - Increase the APB freq to 133MHz --- arch/arm64/boot/dts/freescale/imx93.dtsi | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi index 7b27012dfcb5..95cc60158349 100644 --- a/arch/arm64/boot/dts/freescale/imx93.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi@@ -43,6 +43,29 @@ map0 { }; }; }; + + sram: sram@20480000 { + compatible = "mmio-sram"; + reg = <0x0 0x20480000 0x0 0x18000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x0 0x20480000 0x18000>; + }; + + soc@0 { + npu@4a900000 { + compatible = "fsl,imx93-npu", "arm,ethos-u65"; + reg = <0x4a900000 0x1000>; + interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>; + power-domains = <&mlmix>; + clocks = <&clk IMX93_CLK_ML>, <&clk IMX93_CLK_ML_APB>; + clock-names = "core", "apb"; + sram = <&sram>; + assigned-clocks = <&clk IMX93_CLK_ML>, <&clk IMX93_CLK_ML_APB>; + assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1>, <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>; + assigned-clock-rates = <800000000>, <133000000>; + }; + }; }; &aips1 { --2.51.0