[RFC PATCH 0/4] Alternative debug outputs for rockchip devices

["Marty E. Plummer" <hanetzer@startmail.com>]

I don't intend for the last change to be included in mainline, I just
need some form of serial output to see why archlinuxarm, alpine linux,
and Fedora workstation all fail to boot on this hardware (rk3399-gru-kevin).
Or at least, I think its failing. At the point of booting the kernel the
bottom inch or so of the screen corrupts a bit and then nothing. It
could be working, but without output on screen or uart2dbga I have no
idea what is going wrong.

I *would* use the uart-to-usb functionality of the rk3399, but as far as
I know this only works with the 2.0, and I'm not sure if those are
available on the rk3399-gru-kevin's type c ports. Do correct me if I'm
wrong.

In addition, the GRF_SOC_CON7:grf_uart_dbg_sel is, as far as I know,
undocumented, outside of the GRF_UART_DBG_SEL_C enum in grf_rk3399,
so the other two options (A and B) are just based on my assumptions.
If someone who *actually knows* could elaborate on it and correct me if
needed I'd greatly appreciate it.


Marty E. Plummer (4):
  rockchip: rk3288: enable u-boot.rom for speedy
  rockchip: rk3288: enable uart2->usb redirection
  rockchip: rk3399: fix typo in grf file
  rockchip: rk3399: attempt to redirect uart2dbga to sdcard

 arch/arm/dts/rk3399-gru.dtsi                  |  7 +---
 arch/arm/dts/rk3399.dtsi                      |  4 +-
 .../include/asm/arch-rockchip/grf_rk3288.h    | 41 +++++++++++++++++++
 .../include/asm/arch-rockchip/grf_rk3399.h    |  5 ++-
 arch/arm/mach-rockchip/rk3288/Kconfig         |  2 +
 arch/arm/mach-rockchip/rk3288/rk3288.c        | 20 +++++++++
 arch/arm/mach-rockchip/rk3399/rk3399.c        | 18 ++++----
 7 files changed, 80 insertions(+), 17 deletions(-)

-- 
2.37.3


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip