diff options
author | Stefan Reinauer <stepan@coresystems.de> | 2009-10-28 16:52:48 +0000 |
---|---|---|
committer | Stefan Reinauer <stepan@openbios.org> | 2009-10-28 16:52:48 +0000 |
commit | 1a08f582b54ec9fff0f356a824647ee40b3a5008 (patch) | |
tree | 32a14bd5bce84638628fabc01935486d7cccace2 /src/superio/smsc/lpc47m15x/lpc47m15x_early_serial.c | |
parent | 581707811c1c24bb0676e7582c671548b8851436 (diff) |
preliminary Intel D945GCLF Atom+i945 support.
ram init fails, as the i945 driver currently only supports the mobile version
of the chipset..
Not sure how much sense it makes to check this in, but since it's a nice and
cheap board, maybe someone wants to work on this.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4879 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/superio/smsc/lpc47m15x/lpc47m15x_early_serial.c')
-rw-r--r-- | src/superio/smsc/lpc47m15x/lpc47m15x_early_serial.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/superio/smsc/lpc47m15x/lpc47m15x_early_serial.c b/src/superio/smsc/lpc47m15x/lpc47m15x_early_serial.c new file mode 100644 index 0000000000..842be5ea04 --- /dev/null +++ b/src/superio/smsc/lpc47m15x/lpc47m15x_early_serial.c @@ -0,0 +1,42 @@ +/* + * lpc47m15x_early_serial.c: Pre-RAM driver for SMSC LPC47M15X Super I/O chip + * + * Copyright (C) 2009 coresystems GmbH + * + * 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; version 2 of the License. + * + * 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 "lpc47m15x.h" + +static inline void pnp_enter_conf_state(device_t dev) +{ + unsigned port = dev>>8; + outb(0x55, port); +} + +static void pnp_exit_conf_state(device_t dev) { + unsigned port = dev>>8; + outb(0xaa, port); +} + +static void lpc47b272_enable_serial(device_t dev, unsigned iobase) +{ + pnp_enter_conf_state(dev); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + pnp_set_iobase(dev, PNP_IDX_IO0, iobase); + pnp_set_enable(dev, 1); + pnp_exit_conf_state(dev); +} |