Re: [PATCH v1 2/4] arm64: dts: qcom: sc7280: Add 'piglin' to the crd-r3 compatible strings

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On 3/17/2022 5:58 AM, Matthias Kaehlcke wrote:
With newer bootloader versions the crd-r3 (aka CRD 1.0 and 2.0) is
identified as a 'piglin' board (like the IDP2 board), instead of 'hoglin'
Add the compatible strings 'google,piglin-rev{3,4}'. The hoglin entries
are kept to make sure the board keeps booting with older bootloader
versions.

The older bootloaders really look for the google,hoglin-rev3/google,hoglin-rev4
compatibles or just google,hoglin? If its just google,hoglin, won;t it pick the
crd-rev5+ dtb now?


The compatible string 'google,piglin' (without revision information) is
still used by the IDP2 board, which is not expected to evolve further.

Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---

  arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts b/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts
index 7a028b9248c3..344338ad8a01 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts
@@ -12,7 +12,10 @@
/ {
  	model = "Qualcomm Technologies, Inc. sc7280 CRD platform (rev3 - 4)";
-	compatible = "qcom,sc7280-crd", "google,hoglin-rev3", "google,hoglin-rev4", "qcom,sc7280";
+	compatible = "qcom,sc7280-crd",
+		     "google,hoglin-rev3", "google,hoglin-rev4",
+		     "google,piglin-rev3", "google,piglin-rev4",
+		     "qcom,sc7280";
aliases {
  		serial0 = &uart5;



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