[RFC PATCH 4/4] rockchip: rk3399: attempt to redirect uart2dbga to sdcard

Marty E. Plummer hanetzer at startmail.com
Thu Sep 29 05:24:29 CEST 2022


On Wed, Sep 28, 2022 at 04:20:37AM -0600, Simon Glass wrote:
> Hi Marty,
> 
> On Thu, 22 Sept 2022 at 00:47, Marty E. Plummer <hanetzer at startmail.com> wrote:
> >
> > The meat of my problem. rk3399 has the ability to redirect uart2 to
> > sdcard pins. This setup half works; I can push input into the uart, but
> > not see output.
> >
> > Signed-off-by: Marty E. Plummer <hanetzer at startmail.com>
> >
> > ---
> >
> >  arch/arm/dts/rk3399-gru.dtsi                   |  7 ++-----
> >  arch/arm/dts/rk3399.dtsi                       |  4 ++--
> >  .../arm/include/asm/arch-rockchip/grf_rk3399.h |  3 +++
> >  arch/arm/mach-rockchip/rk3399/rk3399.c         | 18 +++++++++---------
> >  4 files changed, 16 insertions(+), 16 deletions(-)
> 
> Perhaps the C code could be behind a Kconfig, with a comment about how
> to change the DT?
> 
Maybe if I do end up making this up for mainline inclusion, sure, but as
of right now I just wanna get some console output to see why things
aren't booting properly, so looking for dirty hax to work with for now.
> Regards,
> Simon


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