Index: ahci_fdt.c
===================================================================
RCS file: /cvs/src/sys/dev/fdt/ahci_fdt.c,v
retrieving revision 1.7
diff -u -p -r1.7 ahci_fdt.c
--- ahci_fdt.c	25 May 2022 03:03:58 -0000	1.7
+++ ahci_fdt.c	6 Apr 2023 21:30:31 -0000
@@ -30,6 +30,8 @@
 #include <dev/ic/ahcivar.h>
 
 #include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_clock.h>
+#include <dev/ofw/ofw_misc.h>
 #include <dev/ofw/fdt.h>
 
 int	ahci_fdt_match(struct device *, void *, void *);
@@ -63,6 +65,7 @@ ahci_fdt_attach(struct device *parent, s
 {
 	struct ahci_softc *sc = (struct ahci_softc *) self;
 	struct fdt_attach_args *faa = aux;
+	uint32_t pi;
 
 	if (faa->fa_nreg < 1)
 		return;
@@ -82,11 +85,19 @@ ahci_fdt_attach(struct device *parent, s
 		goto unmap;
 	}
 
+	clock_set_assigned(faa->fa_node);
+	clock_enable_all(faa->fa_node);
+	phy_enable(faa->fa_node, "sata-phy");
+
+	pi = OF_getpropint(faa->fa_node, "ports-implemented", 0x0);
+	if (pi != 0)
+		bus_space_write_4(sc->sc_iot, sc->sc_ioh, AHCI_REG_PI, pi);
+
 	printf(":");
 
 	if (ahci_attach(sc) != 0) {
 		/* error printed by ahci_attach */
-		goto irq;
+		goto irq; /* disable phy and clocks? */
 	}
 
 	return;