topic Re: imx8qxp interrupt question in i.MX Processors

imx8qxp interrupt question

nxf54271 — Wed, 30 Oct 2019 19:58:17 GMT

For the imx8qxp what does the number 8 on this line mean? I can't find it in the manual reference.
i2c0_csi0: i2c@58226000 {
compatible = "fsl,imx8qm-lpi2c";
reg = <0x0 0x58226000 0x0 0x1000>;
interrupts = <8 IRQ_TYPE_LEVEL_HIGH>; <------------------------------------
interrupt-parent = <&irqsteer_csi>;
clocks = <&clk IMX8QXP_CSI0_I2C0_CLK>,
<&clk IMX8QXP_CSI0_I2C0_IPG_CLK>;
clock-names = "per", "ipg";
assigned-clocks = <&clk IMX8QXP_CSI0_I2C0_CLK>;
assigned-clock-rates = <24000000>;
power-domains = <&pd_mipi_csi_i2c0>;
status = "disabled";
};

Re: imx8qxp interrupt question

Bio_TICFSL — Thu, 31 Oct 2019 20:59:26 GMT

Hello Cesar,

The interrupt 8 in the code snippet there is for the lpi2c module. It goes into the local interrupt steer block of Figure 15-12 of the Reference manual.

Unfortunately, this info is currently missing from the RM as well as from internal architectural documents. The good news is that R&D is aware of the lack of documentation and is working on generating it. The 8QM RM is undergoing the update first; the QXP RM should follow. Sorry for the inconvenience.

Regards

Re: imx8qxp interrupt question

nxf54271 — Thu, 31 Oct 2019 21:49:20 GMT

Can you posted the figure please?

Re: imx8qxp interrupt question

Bio_TICFSL — Thu, 31 Oct 2019 22:05:37 GMT