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    Subject[PATCH v2 2/2] arm64: dts: qcom: sdm850-yoga: Enable IPA
    Date
    The ipa_fws.elf found in the Lenovo Yoga C630 isn't packed like the one
    found in e.g. the MTP, so it doesn't fit in the "standard" ipa_fws
    memory region. Further more, authentication of ipa_fws at the usual base
    address is rejected by the Peripheral Authentication Service (in
    TrustZone), so some shuffling and trial and error was used to come up
    with acceptable regions.

    With this in order, enable the IPA device.

    Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
    ---

    Changes since v1:
    - None

    .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 26 +++++++++----------
    1 file changed, 13 insertions(+), 13 deletions(-)

    diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
    index 7d84f8a2db4d..f40fcd5d08d3 100644
    --- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
    +++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
    @@ -73,28 +73,23 @@ rmtfs_mem: memory@88f00000 {
    qcom,vmid = <15>;
    };

    - ipa_fw_mem: memory@8c400000 {
    - reg = <0 0x8c400000 0 0x10000>;
    + wlan_msa_mem: memory@8c400000 {
    + reg = <0 0x8c400000 0 0x100000>;
    no-map;
    };

    - ipa_gsi_mem: memory@8c410000 {
    - reg = <0 0x8c410000 0 0x5000>;
    + gpu_mem: memory@8c515000 {
    + reg = <0 0x8c515000 0 0x2000>;
    no-map;
    };

    - gpu_mem: memory@8c415000 {
    - reg = <0 0x8c415000 0 0x2000>;
    + ipa_fw_mem: memory@8c517000 {
    + reg = <0 0x8c517000 0 0x5a000>;
    no-map;
    };

    - adsp_mem: memory@8c500000 {
    - reg = <0 0x8c500000 0 0x1a00000>;
    - no-map;
    - };
    -
    - wlan_msa_mem: memory@8df00000 {
    - reg = <0 0x8df00000 0 0x100000>;
    + adsp_mem: memory@8c600000 {
    + reg = <0 0x8c600000 0 0x1a00000>;
    no-map;
    };

    @@ -486,6 +481,11 @@ ecsh: hid@5c {
    };
    };

    +&ipa {
    + status = "okay";
    + memory-region = <&ipa_fw_mem>;
    +};
    +
    &mdss {
    status = "okay";
    };
    --
    2.29.2
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