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QCA7000 spi burst mode
francesco.bianchi
Join Date: 23 Dec 22
Posts: 1
Posted: Fri, 2022-12-23 02:22
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Hi All,
I'm trying to connect QCA7000 to an e mbedded Linux SBC over SPI.
I'm able to make this work in legacy mode, but, if enabled, burst mode leads to invalid signature error 
qcaspi spi1.0: Invalid signature (0xAAAA).

My setup:

- imx6 family SBC
- embedded linux kerner 5.4.70
- device tree is so configured:

 

compatible = "qca,qca7000";
reg = <0>;
pinctrl-names = "default";
interrupt-parent = <&gpio5>;
interrupts = <1 1>;
spi-cpha;
spi-cpol; 
spi-max-frequency = <10000000>;

 


What is the case of 0xAAAA signature?
What am I missing?

Many thanks in advance.


 

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