[PATCH 2/3] scsi: ufs: spacemit: k3: Add UFS Host Controller driver

Yixun Lan dlan at kernel.org
Sat Jul 25 02:18:24 PDT 2026


Hi Anirudh,

On 15:16 Sun 12 Jul     , Anirudh Srinivasan wrote:
> On Thu, Jul 02, 2026 at 02:31:36AM +0000, Yixun Lan wrote:
> > SpacemiT K3 SoC consist of UFS (Universal Flash Storage) Host Controller
> > which has features compatible with JEDEC UFS 2.2, MIPI UniPro v1.61 and
> > M-PHY v3.0 standard.
> > 
> > Signed-off-by: Yixun Lan <dlan at kernel.org>
> > ---
> >  drivers/ufs/host/Kconfig        |  12 +
> >  drivers/ufs/host/Makefile       |   1 +
> >  drivers/ufs/host/ufs-spacemit.c | 931 ++++++++++++++++++++++++++++++++++++++++
> >  drivers/ufs/host/ufs-spacemit.h |  90 ++++
> >  4 files changed, 1034 insertions(+)
> > 
> > diff --git a/drivers/ufs/host/Kconfig b/drivers/ufs/host/Kconfig
> > index ff170c0b6da0..4f53b7f7688f 100644
> > --- a/drivers/ufs/host/Kconfig
> > +++ b/drivers/ufs/host/Kconfig
> > @@ -132,6 +132,18 @@ config SCSI_UFS_VARIABLE_SG_ENTRY_SIZE
> >  	bool
> >  	default y if SCSI_UFS_EXYNOS && SCSI_UFS_CRYPTO
> >  
> > +config SCSI_UFS_SPACEMIT
> > +	tristate "SpacemiT UFS controller driver"
> > +	depends on SCSI_UFSHCD_PLATFORM && ARCH_SPACEMIT
> 
> Can you add SCSI_UFSHCD_PLATFORM and SCSI_UFS_SPACEMIT as modules to
> riscv defconfig (or just add the former and add a default y if
> ARCH_SPACEMIT in this Kconfig entry). This will let defconfig kernels
> to boot with persistant rootfs on these devices.
> 
Ok, will consider adding one entry to riscv defconfig, but this should be
handled in another separate patch, for making it as module or built-in driver,
I'm incline to choose latter one, but would be glad to hear different opinion

-- 
Yixun Lan (dlan)



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