[PATCH 1/2] arm64: dts: qcom: qrb2210-rb1: Drop modem support

[PATCH 1/2] arm64: dts: qcom: qrb2210-rb1: Drop modem support

[Sumit Garg]

From: Sumit Garg <sumit.garg@oss.qualcomm.com>

QRB2210 has modem fused out as it's only available on the mobile variant
which is QCM2290. So let's disable modem support from RB1.

Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index da46e9d65528..7c5e0cf18131 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -453,11 +453,6 @@ &remoteproc_adsp {
 	status = "okay";
 };
 
-&remoteproc_mpss {
-	firmware-name = "qcom/qcm2290/modem.mbn";
-	status = "okay";
-};
-
 &rpm_requests {
 	regulators {
 		compatible = "qcom,rpm-pm2250-regulators";
-- 
2.51.0

[PATCH 2/2] arm64: dts: qcom: qrb2210-arduino-imola: Drop modem support

[Sumit Garg]

From: Sumit Garg <sumit.garg@oss.qualcomm.com>

QRB2210 has modem fused out as it's only available on the mobile variant
which is QCM2290. So let's disable modem support from Arduino Imola/UNO-Q.

Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
index 5266f89feaaf..34f8bef222be 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
@@ -343,12 +343,6 @@ &remoteproc_adsp {
 	status = "okay";
 };
 
-&remoteproc_mpss {
-	firmware-name = "qcom/qcm2290/modem.mbn";
-
-	status = "okay";
-};
-
 &rpm_requests {
 	regulators {
 		compatible = "qcom,rpm-pm2250-regulators";
-- 
2.51.0

Re: [PATCH 2/2] arm64: dts: qcom: qrb2210-arduino-imola: Drop modem support

[Konrad Dybcio]

On 4/27/26 1:28 PM, Sumit Garg wrote:
> From: Sumit Garg <sumit.garg@oss.qualcomm.com>
> 
> QRB2210 has modem fused out as it's only available on the mobile variant
> which is QCM2290. So let's disable modem support from Arduino Imola/UNO-Q.
> 
> Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> ---

On previous APQ-y SoCs, the remoteproc was still physically present and
served various functions (among others, GPS, IIRC). Is that not the case?

Konrad

Re: [PATCH 2/2] arm64: dts: qcom: qrb2210-arduino-imola: Drop modem support

[Sumit Garg]

On Mon, Apr 27, 2026 at 01:43:08PM +0200, Konrad Dybcio wrote:
> On 4/27/26 1:28 PM, Sumit Garg wrote:
> > From: Sumit Garg <sumit.garg@oss.qualcomm.com>
> > 
> > QRB2210 has modem fused out as it's only available on the mobile variant
> > which is QCM2290. So let's disable modem support from Arduino Imola/UNO-Q.
> > 
> > Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> > ---
> 
> On previous APQ-y SoCs, the remoteproc was still physically present and
> served various functions (among others, GPS, IIRC). Is that not the case?

That isn't the case as we hear that modem is fused out on QRB2210. Even
the marketing page here [1] suggests to use add-on chip WGR7640 for
GNSS.

[1] https://www.qualcomm.com/internet-of-things/products/q2-series/qrb2210

-Sumit

Re: [PATCH 2/2] arm64: dts: qcom: qrb2210-arduino-imola: Drop modem support

[Konrad Dybcio]

On 4/27/26 1:54 PM, Sumit Garg wrote:
> On Mon, Apr 27, 2026 at 01:43:08PM +0200, Konrad Dybcio wrote:
>> On 4/27/26 1:28 PM, Sumit Garg wrote:
>>> From: Sumit Garg <sumit.garg@oss.qualcomm.com>
>>>
>>> QRB2210 has modem fused out as it's only available on the mobile variant
>>> which is QCM2290. So let's disable modem support from Arduino Imola/UNO-Q.
>>>
>>> Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
>>> ---
>>
>> On previous APQ-y SoCs, the remoteproc was still physically present and
>> served various functions (among others, GPS, IIRC). Is that not the case?
> 
> That isn't the case as we hear that modem is fused out on QRB2210. Even
> the marketing page here [1] suggests to use add-on chip WGR7640 for
> GNSS.
> 
> [1] https://www.qualcomm.com/internet-of-things/products/q2-series/qrb2210

I would like you to provide a better source than a marketing page which
does not necessarily use 'modem' in the context of 'mpss remoteproc'

The easiest test to conduct is to boot up the device and run qrtr-lookup
with and without the rproc.

Or actually, if the rproc succeeds to start up, that's proof enough that
it's actually there..

Konrad

Re: [PATCH 1/2] arm64: dts: qcom: qrb2210-rb1: Drop modem support

[Dmitry Baryshkov]

On Mon, Apr 27, 2026 at 04:58:32PM +0530, Sumit Garg wrote:
> From: Sumit Garg <sumit.garg@oss.qualcomm.com>
> 
> QRB2210 has modem fused out as it's only available on the mobile variant
> which is QCM2290. So let's disable modem support from RB1.
> 
> Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 5 -----
>  1 file changed, 5 deletions(-)
> 

No, this is not true. On QCM2290 the modem DSP is being used to download
wlan firmware. As such this is wrong.

[    4.186507] remoteproc remoteproc0: modem is available
[   14.811564] remoteproc remoteproc0: powering up modem
[   14.883766] remoteproc remoteproc0: Booting fw image qcom/qcm2290/modem.mbn, size 8881672
[   15.505182] remoteproc remoteproc0: remote processor modem is now up

-- 
With best wishes
Dmitry