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charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251209_235934_674843_B1F1678E X-CRM114-Status: GOOD ( 18.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Dec 09, 2025 at 11:05:44PM -0800, Lei Xu wrote: > On Mon, Dec 08, 2025 at 07:57:07AM +0100, Francesco Dolcini wrote: > > On Sun, Dec 07, 2025 at 05:26:06AM -0800, Lei Xu wrote: > > > The i.MX95 15x15 FRDM board is a compact and cost-effective development > > > platform based on the i.MX95 applications processor. > > > > ... > > > > > diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts > > > new file mode 100644 > > > index 000000000000..61e815c858b8 > > > --- /dev/null > > > +++ b/arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts > > > > ... > > > > > + > > > +/* Default settings in i.mx95.dtsi are for i.MX95 19x19 package. > > > + * Override here for the i.MX95 15x15 package. > > > + */ > > > +&netc_bus0 { > > > + msi-map = <0x0 &its 0x60 0x1>, //ENETC0 PF > > > + <0x10 &its 0x61 0x1>, //ENETC0 VF0 > > > + <0x20 &its 0x62 0x1>, //ENETC0 VF1 > > > + <0x40 &its 0x63 0x1>, //ENETC1 PF > > > + <0x50 &its 0x65 0x1>, //ENETC1 VF0 > > > + <0x60 &its 0x66 0x1>, //ENETC1 VF1 > > > + <0x80 &its 0x64 0x1>, //ENETC2 PF > > > + <0xc0 &its 0x67 0x1>; //NETC Timer > > > + iommu-map = <0x0 &smmu 0x20 0x1>, > > > + <0x10 &smmu 0x21 0x1>, > > > + <0x20 &smmu 0x22 0x1>, > > > + <0x40 &smmu 0x23 0x1>, > > > + <0x50 &smmu 0x25 0x1>, > > > + <0x60 &smmu 0x26 0x1>, > > > + <0x80 &smmu 0x24 0x1>, > > > + <0xc0 &smmu 0x27 0x1>; > > > +}; > > > > If the 19x19 and 15x15 i.MX95 requires something different you should > > have a different soc dtsi. Probably creating a new imx95-$something > > dtsi, that includes the existing imx95.dtsi and override this property. > > > > This solution does not scale, please fix it. > > > > Francesco > > > > Hello, Francesco > > The original comment is misleading because this configuration applies > to the board rather than the SoC. If this is a board configuration, why it is in imx95.dtsi in the first place? In addition, I am interested in the topic, can you explain in more detail why this is needed and what is this achieving? Francesco