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Repeated riscv_dispatch_irq: irq=25. Yay!

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Lee Lup Yuen 2023-11-24 21:21:13 +08:00
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README.md
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@ -3137,12 +3137,39 @@ PLIC Interrupt Priority (0xe0000004):
0040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
```
We set PLIC Interrupt Priority to 1 ourselves.
We set PLIC Interrupt Priority to 1 ourselves...
```text
bl602_attach: Set PLIC Interrupt Priority to 1
PLIC Interrupt Priority (0xe0000004):
0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0040 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................
0050 01 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00 ................
0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0120 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0130 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................
```
Then [IRQ 25 is OK yay!](https://gist.github.com/lupyuen/af6112c80db6907e5e5dec3519af53ff)
TODO: What is IRQ 25?
TODO: Why is up_irqinitialize not setting Interrupt Priority properly? Signed arithmetic? Or delay?
# Documentation for Ox64 BL808
![Pine64 Ox64 64-bit RISC-V SBC (Sorry for my substandard soldering)](https://lupyuen.github.io/images/ox64-solder.jpg)