diff options
Diffstat (limited to 'sys/arch/hppa/dev')
| -rw-r--r-- | sys/arch/hppa/dev/sti_pci_machdep.c | 48 |
1 files changed, 45 insertions, 3 deletions
diff --git a/sys/arch/hppa/dev/sti_pci_machdep.c b/sys/arch/hppa/dev/sti_pci_machdep.c index d90b1fdc55b..169e10c1cbc 100644 --- a/sys/arch/hppa/dev/sti_pci_machdep.c +++ b/sys/arch/hppa/dev/sti_pci_machdep.c @@ -1,7 +1,7 @@ -/* $OpenBSD: sti_pci_machdep.c,v 1.1 2007/01/11 22:06:39 miod Exp $ */ +/* $OpenBSD: sti_pci_machdep.c,v 1.2 2009/04/10 17:11:27 miod Exp $ */ /* - * Copyright (c) 2007 Miodrag Vallat. + * Copyright (c) 2007, 2009 Miodrag Vallat. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -31,5 +31,47 @@ int sti_pci_is_console(struct pci_attach_args *, bus_addr_t *); int sti_pci_is_console(struct pci_attach_args *paa, bus_addr_t *bases) { - return ((hppa_hpa_t)bases[0] == (hppa_hpa_t)PAGE0->mem_cons.pz_hpa); + u_int32_t cf; + bus_addr_t addr; + int bar; + int rc; + + /* + * PAGE0 console information will point to one of our BARs, + * but depending on the particular sti model, this might not + * be the BAR mapping the rom (region #0). + * + * For example, on Visualize FXe, regions #0, #2 and #3 are + * mapped by BAR 0x18, while region #1 is mapped by BAR 0x10, + * which matches PAGE0 console address. + * + * Rather than trying to be smart, reread the region->BAR array + * again, and compare the BAR mapping region #1 against PAGE0 + * values, we simply try all the valid BARs; if any of them + * matches what PAGE0 says, then we are the console, and it + * doesn't matter which BAR matched. + */ + for (bar = PCI_MAPREG_START; bar <= PCI_MAPREG_PPB_END; ) { + cf = pci_conf_read(paa->pa_pc, paa->pa_tag, bar); + + if (PCI_MAPREG_TYPE(cf) == PCI_MAPREG_TYPE_IO) { + rc = pci_io_find(paa->pa_pc, paa->pa_tag, bar, &addr, + NULL); + bar += 4; + } else { + rc = pci_mem_find(paa->pa_pc, paa->pa_tag, bar, &addr, + NULL, NULL); + if (PCI_MAPREG_MEM_TYPE(cf) == + PCI_MAPREG_MEM_TYPE_64BIT) + bar += 8; + else + bar += 4; + } + + if (rc == 0 && + (hppa_hpa_t)addr == (hppa_hpa_t)PAGE0->mem_cons.pz_hpa) + return 1; + } + + return 0; } |