Re: [PATCH 1/5] arm64: dts: qcom: qrb2210-rb1: Swap UART index

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On 06/09/2023 12:24, Konrad Dybcio wrote:
Newer RB1 board revisions have a debug UART on QUP0. Sadly, it looks

Nit: I think this is '.. revisions should have...'. Because I was told that the board I got is the final design / production.

like even when ordering one in retail, customers receive prototype
boards with "Enginering Sample" written on them.

Use QUP4 for UART to make all known RB1 boards boot.

Fixes: e18771961336 ("arm64: dts: qcom: Add initial QTI RB1 device tree")
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Reported-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

---
  arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index eadba066972e..5cda5b761455 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -13,7 +13,7 @@ / {
  	compatible = "qcom,qrb2210-rb1", "qcom,qrb2210", "qcom,qcm2290";
aliases {
-		serial0 = &uart0;
+		serial0 = &uart4;
  		sdhc1 = &sdhc_1;
  		sdhc2 = &sdhc_2;
  	};
@@ -357,7 +357,7 @@ key_volp_n: key-volp-n-state {
  };
/* UART connected to the Micro-USB port via a FTDI chip */
-&uart0 {
+&uart4 {
  	compatible = "qcom,geni-debug-uart";
  	status = "okay";
  };


--
With best wishes
Dmitry




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