Re: [PATCH 1/3] arm64: dts: qcom: sm8450: Add IPA support

[Konrad Dybcio]

On 6/23/26 3:44 AM, Esteban Urrutia via B4 Relay wrote:
> From: Esteban Urrutia <esteuwu@xxxxxxxxx>
> 
> Add support for IPA in DT while expanding the IMEM region just enough to
> accommodate the modem tables used by IPA.
> As reference, SM8450 uses IPA v5.1.
> 
> Signed-off-by: Esteban Urrutia <esteuwu@xxxxxxxxx>
> ---

[...]

>  arch/arm64/boot/dts/qcom/sm8450.dtsi | 55 ++++++++++++++++++++++++++++++++----
>  1 file changed, 50 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> index 56cb6e959e4e..c904720008fa 100644
> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
> @@ -2639,6 +2639,47 @@ adreno_smmu: iommu@3da0000 {
>  			dma-coherent;
>  		};
>  
> +		ipa: ipa@3f40000 {
> +			compatible = "qcom,sm8450-ipa";
> +
> +			iommus = <&apps_smmu 0x5c0 0x0>,
> +				 <&apps_smmu 0x5c2 0x0>;
> +			reg = <0 0x3f40000 0 0x10000>,
> +			      <0 0x3f50000 0 0x5000>,

size = 0xb0000 for the RAM and uC regions that the driver seems
to poke at (at a glance anyway..)

[...]

>  		usb_1_hsphy: phy@88e3000 {
>  			compatible = "qcom,sm8450-usb-hs-phy",
>  				     "qcom,usb-snps-hs-7nm-phy";
> @@ -4970,17 +5011,21 @@ cti@13900000 {
>  			clock-names = "apb_pclk";
>  		};
>  
> -		sram@146aa000 {
> +		sram@146a8000 {
>  			compatible = "qcom,sm8450-imem", "syscon", "simple-mfd";
> -			reg = <0 0x146aa000 0 0x1000>;
> -			ranges = <0 0 0x146aa000 0x1000>;
> +			reg = <0 0x146a8000 0 0x3000>;

base=0x1468_0000
size=0x40_000

Konrad