The 1043 kernel sets the external interrupt IRQ 0 high-level problem

ppbobo — Tue, 07 Feb 2023 05:53:11 GMT

The 1043 kernel sets the external interrupt IRQ 0 high-level trigger interrupt mode. After registering the interrupt service routine. When the high level comes,if IRQ0 is not pulled down, tens of millions of interrupts will be generated within a few seconds, and the system will kernel panic after a while. Even if I pull down IRQ0 as soon as I enter the interrupt service routine,.there will be interrupts but the problem of not entering the interrupt service routine from time to time.

Re: The 1043 kernel sets the external interrupt IRQ 0 high-level problem

yipingwang — Tue, 14 Feb 2023 05:59:32 GMT

You can find a external IRQ reference code from LX2160ARDB.
External IRQ3 is used for AQR107 PHY, high-level trigger mode.

Following is the dts setting:

aquantia_phy1: ethernet-phy@4 {
/* AQR107 PHY */
compatible = "ethernet-phy-ieee802.3-c45";
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
reg = <0x4>;
};

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The 1043 kernel sets the external interrupt IRQ 0 high-level problem

Re: The 1043 kernel sets the external interrupt IRQ 0 high-level problem