Disable smmu(4) for Qualcomm SC8280XP on FDT attachment like we already do

on ACPI.

ok kettenis@

diff --git a/sys/arch/arm64/dev/smmu_fdt.c b/sys/arch/arm64/dev/smmu_fdt.c
index 9a0819c..cb6b542 100644 (file)
--- a/sys/arch/arm64/dev/smmu_fdt.c
+++ b/sys/arch/arm64/dev/smmu_fdt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: smmu_fdt.c,v 1.5 2022/04/06 18:59:26 naddy Exp $ */
+/* $OpenBSD: smmu_fdt.c,v 1.6 2022/11/06 12:14:52 patrick Exp $ */
 /*
  * Copyright (c) 2021 Patrick Wildt <patrick@blueri.se>
  *
@@ -83,9 +83,16 @@ smmu_fdt_attach(struct device *parent, struct device *self, void *aux)
                sc->sc_is_mmu500 = 1;
        if (OF_is_compatible(faa->fa_node, "marvell,ap806-smmu-500"))
                sc->sc_is_ap806 = 1;
+       if (OF_is_compatible(faa->fa_node, "qcom,sc8280xp-smmu-500"))
+               sc->sc_is_qcom = 1;
        if (OF_getproplen(faa->fa_node, "dma-coherent") == 0)
                sc->sc_coherent = 1;
 
+       if (sc->sc_is_qcom) {
+               printf(": disabled\n");
+               return;
+       }
+
        if (smmu_attach(sc) != 0)
                return;