[U-Boot] [PATCH] rpi: add Compute Module 3+

[Jonathan Gray]

On Wed, Jan 30, 2019 at 10:56:37PM +0100, Alexander Graf wrote:
> 
> 
> > Am 30.01.2019 um 22:38 schrieb Jonathan Gray <jsg at jsg.id.au>:
> > 
> >> On Wed, Jan 30, 2019 at 04:13:44PM +0100, Alexander Graf wrote:
> >> Hi Jonathan,
> >> 
> >>> On 30.01.19 15:17, Jonathan Gray wrote:
> >>> Add Raspberry Pi Compute Module 3+ to list of models, the revision code
> >>> is 0x10 according to the list on raspberrypi.org.
> >>> 
> >>> Signed-off-by: Jonathan Gray <jsg at jsg.id.au>
> >>> ---
> >>> board/raspberrypi/rpi/rpi.c | 5 +++++
> >>> 1 file changed, 5 insertions(+)
> >>> 
> >>> diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
> >>> index 153a1fdcb7..c118250740 100644
> >>> --- a/board/raspberrypi/rpi/rpi.c
> >>> +++ b/board/raspberrypi/rpi/rpi.c
> >>> @@ -143,6 +143,11 @@ static const struct rpi_model rpi_models_new_scheme[] = {
> >>>        DTB_DIR "bcm2837-rpi-3-a-plus.dtb",
> >>>        false,
> >>>    },
> >>> +    [0x10] = {
> >>> +        "Compute Module 3+",
> >>> +        DTB_DIR "bcm2837-rpi-cm3-plus.dtb",
> >> 
> >> Is the dtb name already committed to? I haven't seen patches on the rpi
> >> kernel ML.
> > 
> > I didn't see an existing name in various linux trees.
> > 
> > There is currently no new dtb provided with the firmware either, though
> > https://raw.githubusercontent.com/raspberrypi/documentation/master/hardware/computemodule/datasheets/rpi_DATA_CM3plus_1p0.pdf
> > states
> > 
> > "CM3+ modules require a software/firmware image dated November 2018 or
> > newer to function correctly."
> > 
> > So the firmware likely patches bcm2710-rpi-cm3.dtb before passing it on.
> 
> Or maybe it's identical to the CM3? It's supposed to be a drop in replacement after all - and the other differences (wifi chip, usb hub) of the 3+ should not apply to a CM.
> 
> So I guess either you send a patch to Linux that adds the cm3plus and only changes the compatible/model properties over cm3 or we make the dtb name in this patch the cm3 one.
> 
> Alex

Ok, I'll send a v2 with "bcm2837-rpi-cm3.dtb".