Re: [PATCH v2 3/3] arm64: dts: Enabled MHI device over PCIe

gokulsri
2020-09-30T11:05:31Z

On 2020-08-06 15:56, Manivannan Sadhasivam wrote:
> On Thu, Aug 06, 2020 at 03:02:12PM +0530, Gokul Sriram Palanisamy
> wrote:
>> Enabled MHI device support over PCIe and added memory
>> reservation required for MHI enabled QCN9000 PCIe card.
>>
>
> There is no DT support exist for MHI as of now, so this is not going to
> work.
>
> Thanks,
> Mani
>
Hi Mani,
The dt entries are to be used by the ath11k driver. Will remove
mhi,max-channels and mhi,timeout
and post a new revision.

Thanks,
Gokul
>> Signed-off-by: Gokul Sriram Palanisamy <gokulsri@codeaurora.org>
>> ---
>> arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi | 58
>> ++++++++++++++++++++++++++++++
>> arch/arm64/boot/dts/qcom/ipq8074.dtsi | 8 +++++
>> 2 files changed, 66 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
>> b/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
>> index 0827055..d201a7b 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
>> @@ -24,6 +24,22 @@
>> device_type = "memory";
>> reg = <0x0 0x40000000 0x0 0x20000000>;
>> };
>> +
>> + reserved-memory {
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>> + ranges;
>> +
>> + qcn9000_pcie0: memory@50f00000 {
>> + no-map;
>> + reg = <0x0 0x50f00000 0x0 0x03700000>;
>> + };
>> +
>> + qcn9000_pcie1: memory@54600000 {
>> + no-map;
>> + reg = <0x0 0x54600000 0x0 0x03700000>;
>> + };
>> + };
>> };
>>
>> &blsp1_spi1 {
>> @@ -74,3 +90,45 @@
>> nand-bus-width = <8>;
>> };
>> };
>> +
>> +&pcie0_rp {
>> + status = "ok";
>> +
>> + mhi_0: qcom,mhi@0 {
>> + reg = <0 0 0 0 0 >;
>> + qrtr_instance_id = <0x20>;
>> + #address-cells = <0x2>;
>> + #size-cells = <0x2>;
>> +
>> + base-addr = <0x50f00000>;
>> + qcom,caldb-addr = <0x53E00000>;
>> + qrtr_node_id = <0x27>;
>> + mhi,max-channels = <30>;
>> + mhi,timeout = <10000>;
>> +
>> + pcie0_mhi: pcie0_mhi {
>> + status = "ok";
>> + };
>> + };
>> +};
>> +
>> +&pcie1_rp {
>> + status = "ok";
>> +
>> + mhi_1: qcom,mhi@1 {
>> + reg = <0 0 0 0 0 >;
>> + qrtr_instance_id = <0x21>;
>> + #address-cells = <0x2>;
>> + #size-cells = <0x2>;
>> +
>> + base-addr = <0x54600000>;
>> + qcom,caldb-addr = <0x57500000>;
>> + qrtr_node_id = <0x28>;
>> + mhi,max-channels = <30>;
>> + mhi,timeout = <10000>;
>> +
>> + pcie1_mhi: pcie1_mhi {
>> + status = "ok";
>> + };
>> + };
>> +};
>> diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> index b651345..eef47c1 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> @@ -709,6 +709,10 @@
>> "ahb",
>> "axi_m_sticky";
>> status = "disabled";
>> +
>> + pcie1_rp: pcie1_rp {
>> + reg = <0 0 0 0 0>;
>> + };
>> };
>>
>> pcie0: pci@20000000 {
>> @@ -779,6 +783,10 @@
>> "axi_m_sticky",
>> "axi_s_sticky";
>> status = "disabled";
>> +
>> + pcie0_rp: pcie0_rp {
>> + reg = <0 0 0 0 0>;
>> + };
>> };
>>
>> tcsr_q6: syscon@1945000 {
>> --
>> 2.7.4
>>