Re: [PATCH] rpi: Set FDT for RPi CM4 to the IO Board one

[Matthias Brugger]

Hi Ariel,

On 16/09/2022 17:13, Ariel D'Alessandro wrote:
For the RPi CM4 (Compute Module 4), we currently try to load the dtb
file bcm2711-rpi-cm4.dtb, which is not built by the upstream kernel.
Instead, the only CM4 dtb file provided by linux upstream is the
bcm2711-rpi-cm4-io.dtb, so let's use that.

Signed-off-by: Ariel D'Alessandro <ariel.dalessan...@collabora.com>
---
  board/raspberrypi/rpi/rpi.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 17b8108cc8..b88f80ce05 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -168,8 +168,8 @@ static const struct rpi_model rpi_models_new_scheme[] = {
                true,
        },
        [0x14] = {
-               "Compute Module 4",
-               DTB_DIR "bcm2711-rpi-cm4.dtb",
+               "Compute Module 4 IO Board",
+               DTB_DIR "bcm2711-rpi-cm4-io.dtb",

We had that discussion in the past. It is supposed that most CM4s will be used 
with a custom board. I don't think it's a good idea to tie the ID of the module 
to a specific IO board.

Regards,
Matthias

                true,
        },
  };