Hi Jamie, On Mon, Jul 27, 2026 at 4:12 PM <[email protected]> wrote: > > Hi Leo, > > On Mon, 2026-07-27 at 15:14 +0800, Leo Liang wrote: > > EXTERNAL EMAIL: Do not click links or open attachments unless you > > know the content is safe > > > > Hi Jamie, > > > > On Thu, Jul 23, 2026 at 8:52 AM Jamie Gibbons > > <[email protected]> wrote: > > > > > > Add a U-Boot RNG driver for Microchip's PolarFire SoC (MPFS). The > > > hardware RNG is accessed indirectly via the MPFS system controller > > > using > > > the mailbox interface. > > > > > > The driver implements the UCLASS_RNG interface, requesting random > > > data > > > from the system controller and returning it to the caller. > > > > > > This allows use of the PolarFire SoC hardware RNG via the > > > standard 'rng' command and DM RNG API. > > > > > > Signed-off-by: Jamie Gibbons <[email protected]> > > > --- > > > drivers/rng/Kconfig | 7 +++ > > > drivers/rng/Makefile | 1 + > > > drivers/rng/mpfs_rng.c | 101 > > > +++++++++++++++++++++++++++++++++++++++++ > > > 3 files changed, 109 insertions(+) > > > create mode 100644 drivers/rng/mpfs_rng.c > > > > > > diff --git a/drivers/rng/Kconfig b/drivers/rng/Kconfig > > > index 19b2b707677..856ffda2f5e 100644 > > > --- a/drivers/rng/Kconfig > > > +++ b/drivers/rng/Kconfig > > > @@ -23,6 +23,13 @@ config RNG_MESON > > > Enable support for hardware random number generator > > > of Amlogic Meson SoCs. > > > > > > +config RNG_MPFS > > > + tristate "Microchip PolarFire SoC Random Number Generator > > > support" > > > > Is there a special reason to use 'tristate' instead of 'bool'? > > If not, I could convert it to 'bool' when merging the patch, > > so you don't have to respin the patchset. > > No, I don't believe there is a reason - this is a mistake. If you could > fix this on merge, that would be great. >
Got it! Thanks! Best regards, Leo > Much appreciated, > Jamie. > > > > Reviewed-by: Leo Yu-Chi Liang <[email protected]> > > > > Best regards, > > Leo > > > > > + depends on DM_RNG && MPFS_SYSCONTROLLER > > > + help > > > + Enable support for hardware random number generator > > > + of Microchip's PolarFire SoCs. > > > + >
