diff options
Diffstat (limited to 'sys/dev/pci/ahci.c')
| -rw-r--r-- | sys/dev/pci/ahci.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/sys/dev/pci/ahci.c b/sys/dev/pci/ahci.c index 97836eb5f3b..17ab0484ddf 100644 --- a/sys/dev/pci/ahci.c +++ b/sys/dev/pci/ahci.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ahci.c,v 1.27 2006/12/12 02:37:09 dlg Exp $ */ +/* $OpenBSD: ahci.c,v 1.28 2006/12/12 02:39:25 dlg Exp $ */ /* * Copyright (c) 2006 David Gwynne <dlg@openbsd.org> @@ -254,6 +254,8 @@ ahci_attach(struct device *parent, struct device *self, void *aux) { struct ahci_softc *sc = (struct ahci_softc *)self; struct pci_attach_args *pa = aux; + u_int32_t reg; + int i; sc->sc_dmat = pa->pa_dmat; @@ -276,9 +278,9 @@ ahci_attach(struct device *parent, struct device *self, void *aux) #ifdef AHCI_DEBUG if (ahcidebug & AHCI_D_VERBOSE) { - u_int32_t reg = ahci_read(sc, AHCI_REG_CAP); const char *gen; + reg = ahci_read(sc, AHCI_REG_CAP); switch (reg & AHCI_REG_CAP_ISS) { case AHCI_REG_CAP_ISS_G1: gen = "1 (1.5Gbps)"; @@ -297,8 +299,26 @@ ahci_attach(struct device *parent, struct device *self, void *aux) } #endif - return; + reg = ahci_read(sc, AHCI_REG_PI); + DPRINTF(AHCI_D_VERBOSE, "%s: ports implemented: 0x%08x\n", + DEVNAME(sc), reg); + for (i = 0; i < AHCI_MAX_PORTS; i++) { + if (((1 << i) & reg) == 0) { + /* dont allocate stuff if the port isnt implemented */ + continue; + } + if (ahci_port_alloc(sc, i) != 0) + goto freeports; + } + + return; + +freeports: + for (i = 0; i < AHCI_MAX_PORTS; i++) { + if (sc->sc_ports[i] != NULL) + ahci_port_free(sc, i); + } unmap: ahci_unmap_regs(sc, pa); } |