Re: [PATCH 3/3] riscv: dts: spacemit: k3: Add UFS support

[Yixun Lan <dlan@kernel.org>]

Hi Jennifer,

On 10:01 Sat 04 Jul     , Jennifer Berringer wrote:
> On Thu, Jul 02, 2026 at 02:31:37AM +0000, Yixun Lan wrote:
> > Add UFS Host Controller support for SpacemiT K3 SoC, and enable
> > it both on both Pico-ITX and CoM260-IFX boards.
> > 
> > Signed-off-by: Yixun Lan <dlan@kernel.org>
> > ---
> >  arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts |  4 ++++
> >  arch/riscv/boot/dts/spacemit/k3-pico-itx.dts   |  4 ++++
> >  arch/riscv/boot/dts/spacemit/k3.dtsi           | 13 +++++++++++++
> >  3 files changed, 21 insertions(+)
> > 
> > diff --git a/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts b/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts
> > index 238bb03d0e9e..b37e1c7b03e3 100644
> > --- a/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts
> > +++ b/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts
> > @@ -19,3 +19,7 @@ chosen {
> >  		stdout-path = "serial0:115200n8";
> >  	};
> >  };
> > +
> > +&ufshc {
> > +	status = "okay";
> > +};
> 
> I believe k3-com260.dtsi would be a more fitting file for this change.
> UFS is soldered on the underside of the compute module and not part of
> the carrier board.
> 
Right, I agree

> Because it is next to the microSD card slot, a picture showing both can
> be seen in section 5.12 (TF-Card Interface) of the PDF version of the K3
> CoM260 User Guide. That picture is notably not visible in the HTML
> version.
> 
> https://www.spacemit.com/community/document/info?lang=en&nodepath=hardware/eco/k3_com260/com260_user_guide.md
> 
> > diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
> > index b89c1521e664..f1560a5a9031 100644
> > --- a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
> > +++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
> > @@ -221,3 +221,7 @@ hub@1 {
> >  &usb2_phy {
> >  	status = "okay";
> >  };
> > +
> > +&ufshc {
> > +	status = "okay";
> > +};
> 
> Nit: if sorted by label, ufshc would be before usb2_host.
> 
Right, will sort in next version

-- 
Yixun Lan (dlan)