On 2025-12-28 03:03:31 +0100, Marek Vasut wrote:
> On 12/28/25 2:03 AM, Niklas Söderlund wrote:
> > Since commit a2bd99549c61 ("clk: renesas: Tear clock controller down
> > last before booting OS") enabling the module gated by bit 8 in MSTP4
> > prevents Linux from booting. Furthermore bits 8 and 7 of MSTP4 where
> > only documented in early versions of the datasheet and have since been
> > removed, do the same in the driver to allow Linux to boot.
> >
> > Suggested-by: Marek Vasut <[email protected]>
> > Signed-off-by: Niklas Söderlund <[email protected]>
> > ---
> > drivers/clk/renesas/r8a77995-cpg-mssr.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c
> > b/drivers/clk/renesas/r8a77995-cpg-mssr.c
> > index f49faa47cb37..0a59a19cb227 100644
> > --- a/drivers/clk/renesas/r8a77995-cpg-mssr.c
> > +++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c
> > @@ -220,7 +220,7 @@ static const struct mstp_stop_table
> > r8a77995_mstp_table[] = {
> > { 0x03e01000, 0x0, 0x03e01000, 0 },
> > { 0x000e2fdc, 0x2000, 0x000e2fd8, 0 },
> > { 0xc00014df, 0x400, 0xc00014df, 0 },
> > - { 0x80000004, 0x180, 0x80000004, 0 },
> > + { 0x80000004, 0x0, 0x80000004, 0 },
> Should we disable both BIT(8) and BIT(7), or only the BIT(8) that hangs the
> system ?
I think we shall remove both as the datasheet removes both, no?
--
Kind Regards,
Niklas Söderlund
