Date: Sat, 10 Sep 2022 15:00:48 +1000 From: Peter Jeremy <peterj@freebsd.org> To: freebsd-arm@freebsd.org Subject: Pine H64 won't boot with DTB version 5.13 Message-ID: <YxwaAOj2EzjunhNM@server.rulingia.com>
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I have updated my Pine H64 to -current and the kernel advises me:
WARNING: DTB version is 5.9 while kernel expects 5.13, please update the DT=
B in the ESP
unfortunately, when I do so, it fails to attach mmc1 to aw_mmc0 (the
microSD slot) and therefore there's no root device. The onboard
flash mmc0 connected to aw_mmc1 probes normally.
I've compared the boot messages and the critical difference seems to be
that with the newer DTB, the following device is missing:
aw_r_intc_gicp0: <Allwinner R INTC> mem 0x7021000-0x70213ff irq 48 on simpl=
ebus0
Instead, I get:
simplebus0: <interrupt-controller@7021000> mem 0x7021000-0x70213ff irq 51 c=
ompat allwinner,sun50i-h6-r-intc (no driver attached)
Looking through the DTS changes the crucial difference is:
--- /tmp/zzz/5def4c47d4bd/sys/contrib/device-tree/src/arm64/allwinner/sun50=
i-h6.dtsi 2022-09-10 12:49:39.000000000 +1000
+++ /tmp/zzz/src/sys/contrib/device-tree/src/arm64/allwinner/sun50i-h6.dtsi=
2022-09-10 13:24:13.751345000 +1000
=2E..
@@ -927,10 +929,9 @@
};
=20
r_intc: interrupt-controller@7021000 {
- compatible =3D "allwinner,sun50i-h6-r-intc",
- "allwinner,sun6i-a31-r-intc";
+ compatible =3D "allwinner,sun50i-h6-r-intc";
interrupt-controller;
- #interrupt-cells =3D <2>;
+ #interrupt-cells =3D <3>;
reg =3D <0x07021000 0x400>;
interrupts =3D <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
};
The problem is that the FreeBSD interrupt controller drivers
(sys/arm/allwinner/aw_nmi.c and sys/arm/allwinner/aw_r_intc.c) only
recognize "allwinner,sun6i-a31-r-intc".
I tried adding "allwinner,sun6i-a31-r-intc" back in and the resultant
DTB works.
I'm not sure if the correct fix is to locally patch sun50i-h6.dtsi
or fix the interrupt controller drivers.
--=20
Peter Jeremy
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