[PATCH RFT 10/10] arm64: dts: microchip: sparx5_pcb135: drop duplicated NOR flash

From: Krzysztof Kozlowski
Date: Mon Apr 01 2024 - 11:40:03 EST


Since beginning the DTS extended the SPI0 in two places adding two SPI
muxes, each with same SPI NOR flash. Both used exactly the same
chip-selects, so this was clearly buggy code. Without checking in
datasheet, assume device has only one SPI NOR flash, so code was
duplicated.

Fixes dtc W=1 warnings:

sparx5_pcb135_board.dtsi:92.10-96.4: Warning (unique_unit_address_if_enabled): /axi@600000000/spi@600104000/flash@0: duplicate unit-address (also used in node /axi@600000000/spi@600104000/spi@0)

Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

---

Not tested on hardware
---
.../boot/dts/microchip/sparx5_pcb135_board.dtsi | 16 ----------------
1 file changed, 16 deletions(-)

diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi b/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi
index 20016efb3656..d64e642e3873 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi
@@ -96,22 +96,6 @@ flash@0 {
};
};

-&spi0 {
- status = "okay";
- spi@0 {
- compatible = "spi-mux";
- mux-controls = <&mux>;
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>; /* CS0 */
- flash@9 {
- compatible = "jedec,spi-nor";
- spi-max-frequency = <8000000>;
- reg = <0x9>; /* SPI */
- };
- };
-};
-
&sgpio1 {
status = "okay";
microchip,sgpio-port-ranges = <24 31>;
--
2.34.1