diff options
Diffstat (limited to 'sys/arch/powerpc/pci/mpcpcibus.c')
| -rw-r--r-- | sys/arch/powerpc/pci/mpcpcibus.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/sys/arch/powerpc/pci/mpcpcibus.c b/sys/arch/powerpc/pci/mpcpcibus.c index ae58a8c1f98..20c3dabd657 100644 --- a/sys/arch/powerpc/pci/mpcpcibus.c +++ b/sys/arch/powerpc/pci/mpcpcibus.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mpcpcibus.c,v 1.6 1998/08/22 18:31:50 rahnds Exp $ */ +/* $OpenBSD: mpcpcibus.c,v 1.7 1998/08/23 22:08:51 rahnds Exp $ */ /* * Copyright (c) 1997 Per Fogelstrom @@ -161,9 +161,23 @@ mpcpcibrattach(parent, self, aux) case PWRSTK: lcp = sc->sc_pcibr = &mpc_config; - addbatmap(0x80000000, 0x80000000, BAT_I); - addbatmap(MPC106_P_PCI_MEM_SPACE, - MPC106_P_PCI_MEM_SPACE, BAT_I); + { + unsigned int addr; + + /* need to map 0xf0000000 also but cannot + * because kernel uses that address space + */ + for (addr = 0xc0000000; + addr >= 0x80000000; + addr -= 0x10000000) + { + /* we map it 1-1, cache inibited, + * REALLY wish this could be cacheable + * that is the reason to not use the bat. + */ + addbatmap(addr, addr, BAT_I); + } + } sc->sc_membus_space.bus_base = MPC106_V_PCI_MEM_SPACE; sc->sc_membus_space.bus_reverse = 1; @@ -475,3 +489,14 @@ mpc_print_pci_stat() stat = mpc_cfg_read_2(MPC106_PCI_STAT); printf("pci: status 0x%04x.\n", stat); } +u_int32_t +pci_iack() +{ + /* do pci IACK cycle */ + /* this should be bus allocated. */ + volatile u_int8_t *iack = (u_int8_t *)0xbffffff0; + u_int8_t val; + + val = *iack; + return val; +} |