diff options
| author | Leo Dagum <dagum@engr.sgi.com> | 2000-03-30 23:34:26 +0000 |
|---|---|---|
| committer | Leo Dagum <dagum@engr.sgi.com> | 2000-03-30 23:34:26 +0000 |
| commit | 54224ce67ccea820ba4ffc50b3c76878aba0cad3 (patch) | |
| tree | 01cac780eea8b44aabca23197f89edf210a77543 | |
| parent | 71556f85909c4358ad829da918d2ad6df89b932f (diff) | |
Added pcibr_setup() routine to initialize some bridge registers different
from what the prom gives us.
| -rw-r--r-- | arch/mips64/sgi-ip27/ip27-setup.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/arch/mips64/sgi-ip27/ip27-setup.c b/arch/mips64/sgi-ip27/ip27-setup.c index f0d7d66ab..7a72a24bb 100644 --- a/arch/mips64/sgi-ip27/ip27-setup.c +++ b/arch/mips64/sgi-ip27/ip27-setup.c @@ -1,4 +1,4 @@ -/* $Id: ip27-setup.c,v 1.6 2000/02/05 02:12:32 kanoj Exp $ +/* $Id: ip27-setup.c,v 1.7 2000/03/07 15:45:29 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -19,6 +19,9 @@ #include <asm/sn/klconfig.h> #include <asm/ioc3.h> #include <asm/mipsregs.h> +#include <asm/sn/arch.h> +#include <asm/pci/bridge.h> +#include <asm/paccess.h> /* Check against user dumbness. */ #ifdef CONFIG_VT @@ -84,6 +87,23 @@ static void __init verify_mode(void) #endif } +static void __init pcibr_setup(void) +{ + bridge_t *bridge = (bridge_t *) 0x9200000008000000; + bridgereg_t devreg; + int slot; + + /* + * Clear all pending interrupts. + */ + bridge->b_int_rst_stat = (BRIDGE_IRR_ALL_CLR); + /* + * Until otherwise set up, assume all interrupts are from slot 0 + */ + bridge->b_int_device = (u32) 0x0; + bridge->b_wid_tflush; /* wait until Bridge PIO complete */ +} + void __init ip27_setup(void) { nasid_t nid; @@ -108,4 +128,7 @@ void __init ip27_setup(void) verify_mode(); ioc3_sio_init(); ioc3_eth_init(); + + /* set some bridge registers */ + pcibr_setup(); } |