On Tue, Oct 20, 2026 at 05:53:18PM -0500, Anirudh Srinivasan wrote: > Hi Yao Zi, > > On Tue, Sep 22, 2026 at 1:37 PM Anirudh Srinivasan > <[email protected]> wrote: > > > > Hi, > > > > On Tue, Aug 25, 2026 at 11:43 AM Anirudh Srinivasan > > <[email protected]> wrote: > > > > > > Adds a basic driver for IOMMUs that conform to the RISC-V IOMMU > > > specification. This driver sets up the IOMMU in bare mode so that > > > peripherals requiring DMA in U-Boot can function. > > > > > > Signed-off-by: Anirudh Srinivasan <[email protected]> > > > --- > > > Changes in v2: > > > - Changed DDTP read timeout to 3s from 10s > > > - Link to v1: > > > https://patch.msgid.link/[email protected] > > > --- > > > Hi, > > > > > > This is a pre-requisite for U-Boot on Tenstorrent Atlantis. On this > > > platform, the IOMMU comes up in Off mode at boot, so this is needed for > > > SD and NVME boot to work in U-Boot. > > > --- > > > MAINTAINERS | 1 + > > > drivers/iommu/Kconfig | 8 +++++ > > > drivers/iommu/Makefile | 1 + > > > drivers/iommu/riscv_iommu.c | 82 > > > +++++++++++++++++++++++++++++++++++++++++++++ > > > 4 files changed, 92 insertions(+) > > > > Gentle ping on this. > > Gentle ping on this series.
I'll try to have a look soon, but am a little busy these days with travelling and work. Please ping me again if I don't reply after next Friday, thanks. Best regards, Yao Zi
