Re: [PATCH v2 08/11] arm64: dts: qcom: Add SM7325 device tree

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On 8/20/24 03:48, Konrad Dybcio wrote:
On 8.08.2024 8:40 PM, Danila Tikhonov wrote:
From: Eugene Lepshy <fekz115@xxxxxxxxx>

The Snapdragon 778G (SM7325) / 778G+ (SM7325-AE) / 782G (SM7325-AF)
is software-wise very similar to the Snapdragon 7c+ Gen 3 (SC7280).

It uses the Kryo670.

Signed-off-by: Eugene Lepshy <fekz115@xxxxxxxxx>
Signed-off-by: Danila Tikhonov <danila@xxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/sm7325.dtsi | 17 +++++++++++++++++
  1 file changed, 17 insertions(+)
  create mode 100644 arch/arm64/boot/dts/qcom/sm7325.dtsi

diff --git a/arch/arm64/boot/dts/qcom/sm7325.dtsi b/arch/arm64/boot/dts/qcom/sm7325.dtsi
new file mode 100644
index 000000000000..5b4574484412
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm7325.dtsi
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2024, Eugene Lepshy <fekz115@xxxxxxxxx>
+ * Copyright (c) 2024, Danila Tikhonov <danila@xxxxxxxxxxx>
+ */
+
+#include "sc7280.dtsi"
+
+/* SM7325 uses Kryo 670 */
+&CPU0 { compatible = "qcom,kryo670"; };
+&CPU1 { compatible = "qcom,kryo670"; };
+&CPU2 { compatible = "qcom,kryo670"; };
+&CPU3 { compatible = "qcom,kryo670"; };
+&CPU4 { compatible = "qcom,kryo670"; };
+&CPU5 { compatible = "qcom,kryo670"; };
+&CPU6 { compatible = "qcom,kryo670"; };
+&CPU7 { compatible = "qcom,kryo670"; };
This is a meaningless marketing name. As you mentioned in your
reply, cpu0-3 and cpu4-7 are wholly different (maybe cpu7 even
has a different MIDR part num?), we should do something about it :/

Please post the output of `dmesg | grep "Booted secondary processor"`

Konrad
Sure:
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x412fd050]
[    0.020670] CPU1: Booted secondary processor 0x0000000100 [0x412fd050]
[    0.036781] CPU2: Booted secondary processor 0x0000000200 [0x412fd050]
[    0.052717] CPU3: Booted secondary processor 0x0000000300 [0x412fd050]
[    0.070194] CPU4: Booted secondary processor 0x0000000400 [0x411fd411]
[    0.089236] CPU5: Booted secondary processor 0x0000000500 [0x411fd411]
[    0.109298] CPU6: Booted secondary processor 0x0000000600 [0x411fd411]
[    0.126140] CPU7: Booted secondary processor 0x0000000700 [0x411fd411]

Best wishes,
Danila




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