diff options
Diffstat (limited to 'src/superio/nsc/pc8374/early_init.c')
| -rw-r--r-- | src/superio/nsc/pc8374/early_init.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/superio/nsc/pc8374/early_init.c b/src/superio/nsc/pc8374/early_init.c new file mode 100644 index 0000000000..29b57e43a9 --- /dev/null +++ b/src/superio/nsc/pc8374/early_init.c @@ -0,0 +1,56 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2000 AG Electronics Ltd. + * Copyright (C) 2003-2004 Linux Networx + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/romcc_io.h> +#include "pc8374.h" + +static void pc8374_enable(u16 iobase, u8 *init) +{ + u8 val, count; + + outb(0x29, iobase); + val = inb(iobase + 1); + val |= 0x91; + outb(val, iobase + 1); + + for (count = 0; count < 255; count++) + if (inb(iobase + 1) == 0x91) + break; + + for (; *init; init++) { + outb(*init, iobase); + val = inb(iobase + 1); + init++; + val &= *init; + init++; + val |= *init; + outb(val, iobase + 1); + } +} + +static void pc8374_enable_dev(device_t dev, u16 iobase) +{ + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + if (iobase) + pnp_set_iobase(dev, PNP_IDX_IO0, iobase); + pnp_set_enable(dev, 1); +} |