[PATCH RFT 09/10] arm64: dts: microchip: sparx5_pcb134: drop duplicated NOR flash
Krzysztof Kozlowski
krzk at kernel.org
Mon Apr 1 08:37:39 PDT 2024
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_pcb134_board.dtsi:277.10-281.4: Warning (unique_unit_address_if_enabled): /axi at 600000000/spi at 600104000/flash at 0: duplicate unit-address (also used in node /axi at 600000000/spi at 600104000/spi at 0)
Signed-off-by: Krzysztof Kozlowski <krzk at kernel.org>
---
Not tested on hardware
---
.../boot/dts/microchip/sparx5_pcb134_board.dtsi | 16 ----------------
1 file changed, 16 deletions(-)
diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi b/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi
index f165a409bc1d..dc7b59dfcb40 100644
--- a/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi
@@ -281,22 +281,6 @@ flash at 0 {
};
};
-&spi0 {
- status = "okay";
- spi at 0 {
- compatible = "spi-mux";
- mux-controls = <&mux>;
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>; /* CS0 */
- flash at 9 {
- compatible = "jedec,spi-nor";
- spi-max-frequency = <8000000>;
- reg = <0x9>; /* SPI */
- };
- };
-};
-
&sgpio0 {
status = "okay";
microchip,sgpio-port-ranges = <8 15>;
--
2.34.1
More information about the linux-arm-kernel
mailing list