The rmtfs_mem region is currently sized at 6MiB but the default for
milos downstream is 2.5MiB. This causes remoteproc crashes on devices
that expect the smaller size:

modem_ac.c:281:Access Control Error: Could not protect the region specified:Start:e1f00000 End:e2180000, PID:1

Reduce the default to 2.5MiB to match the QCOM downstream config, and
override the size for FP6.

Fixes: d9d59d105f98 ("arm64: dts: qcom: Add initial Milos dtsi")
Reviewed-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
---
 arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts | 5 +++++
 arch/arm64/boot/dts/qcom/milos.dtsi              | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
index 52895dd9e4fa..5663ab4589f3 100644
--- a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
+++ b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
@@ -724,6 +724,11 @@ &remoteproc_wpss {
 	status = "okay";
 };
 
+&rmtfs_mem {
+	/* Increase the size from 2.5 MiB to 6 MiB */
+	reg = <0x0 0xe1f00000 0x0 0x600000>;
+};
+
 &sdhc_2 {
 	cd-gpios = <&tlmm 65 GPIO_ACTIVE_HIGH>;
 
diff --git a/arch/arm64/boot/dts/qcom/milos.dtsi b/arch/arm64/boot/dts/qcom/milos.dtsi
index e1a51d43943f..915642498516 100644
--- a/arch/arm64/boot/dts/qcom/milos.dtsi
+++ b/arch/arm64/boot/dts/qcom/milos.dtsi
@@ -640,7 +640,7 @@ cpusys_vm_mem: cpusys-vm-region@e0600000 {
 
 		rmtfs_mem: rmtfs@e1f00000 {
 			compatible = "qcom,rmtfs-mem";
-			reg = <0x0 0xe1f00000 0x0 0x600000>;
+			reg = <0x0 0xe1f00000 0x0 0x280000>;
 			no-map;
 
 			qcom,client-id = <1>;

-- 
2.53.0