Hi

I've tested the kernel changes to enable Renesas RZ platform serial
installer. This is working now.

Please note that this change affects the installation media to install
them on Renesas RZ platform.

Please include the changes into the source code and change the status to
'verification-done-jammy-linux-nvidia-6.2'.

Best Regards
John

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https://bugs.launchpad.net/bugs/2022361

Title:
  Please enable Renesas RZ platform serial installer

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Focal:
  Fix Released
Status in linux source package in Jammy:
  Fix Released
Status in linux source package in Lunar:
  Fix Released
Status in linux source package in Mantic:
  Fix Released

Bug description:
  [Impact]

  The ubuntu installer does not work via serial ports for Renesas boards like
  RZ/G2M-HiHope 
(https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rz-mpus/rzg2m-hihope-rzg2m-reference-board,
 RZ/G2L, RZ/G2LC, RZ/G2UL SMARC Board 
(https://renesas.info/wiki/RZ-G/RZ-G2L_SMARC).

  The installation can be done using HDMI ports, but it would be nice to
  support installation via serial port as well.

  [Test case]

  Try to install Ubuntu on a Renesas board.

  [Fix]

  Statically build SuperH SCI(F) serial port support (with
  earlyconsole).

  [Regression potential]

  Statically building an additional driver in the kernel can make the
  kernel image bigger, potentially causing boot issues in small (arm64 /
  armhf) platforms.

  [Original bug report]

  Package: linux
  Version: Ubuntu-6.2.0-21.21
  Severity: normal
  File: /mantic/debian.master/config/annotations

  Dear Maintainer,

  The ubuntu kernel is missing a few configuration options for Renesas
  RZ/G2M MPU as below:

  #Modify the following config from m to y.

  CONFIG_SERIAL_SH_SCI=y

  #add below configuration

  CONFIG_SERIAL_SH_SCI_CONSOLE=y
  CONFIG_SERIAL_SH_SCI_EARLYCON=y

  The above changes are required in annotations file:
  "/mantic/debian.master/config/annotations"

  code location:

  https://git.launchpad.net/~ubuntu-
  
kernel/ubuntu/+source/linux/+git/mantic/tree/debian.master/config/annotations#n11372

  #Modify the following line (change 'm' to 'y')

  CONFIG_SERIAL_SH_SCI policy<{'arm64': 'y', 'armhf': 'y'}>

  #Add the following lines:

  CONFIG_SERIAL_SH_SCI_CONSOLE policy<{'arm64': 'y', 'armhf': 'y'}>
  CONFIG_SERIAL_SH_SCI_EARLYCON policy<{'arm64': 'y', 'armhf': 'y'}>

  Could you please add those configuration options to the Ubuntu kernel?

  Best Regards
  John

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