From 7b904d84ba4e4e40149a8dcb98ca518e3bc6b911 Mon Sep 17 00:00:00 2001 From: Frank Vibrans Date: Mon, 14 Feb 2011 19:00:13 +0000 Subject: This code provides support for the superio chip on the AMD Inagua platform (not commercially available). It is independent of the AMD>code. Signed-off-by: Frank Vibrans Acked-by: Stefan Reinauer Acked-by: Marc Jones git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6351 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/superio/smsc/kbc1100/kbc1100_early_init.c | 75 +++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 src/superio/smsc/kbc1100/kbc1100_early_init.c (limited to 'src/superio/smsc/kbc1100/kbc1100_early_init.c') diff --git a/src/superio/smsc/kbc1100/kbc1100_early_init.c b/src/superio/smsc/kbc1100/kbc1100_early_init.c new file mode 100644 index 0000000000..4247a96318 --- /dev/null +++ b/src/superio/smsc/kbc1100/kbc1100_early_init.c @@ -0,0 +1,75 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Advanced Micro Devices, Inc. + * + * 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 + */ + +/* Pre-RAM driver for the SMSC KBC1100 Super I/O chip */ + +#include +#include "kbc1100.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 inline void kbc1100_early_init(unsigned port) +{ + device_t dev; + dev = PNP_DEV (port, KBC1100_KBC); + + pnp_enter_conf_state(dev); + + /* Serial IRQ enabled */ + outb(0x25, port); + outb(0x04, port + 1); + + /* Enable SMSC UART 0 */ + dev = PNP_DEV (port, SMSCSUPERIO_SP1); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + pnp_set_iobase(dev, PNP_IDX_IO0, CONFIG_TTYS0_BASE); + pnp_set_enable(dev, 1); + + /* Enable keyboard */ + dev = PNP_DEV (port, KBC1100_KBC); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 0); + pnp_set_iobase(dev, PNP_IDX_IO0, 0x60); + pnp_set_iobase(dev, PNP_IDX_IO1, 0x64); + pnp_set_irq(dev, 0x70, 1); /* IRQ 1 */ + pnp_set_irq(dev, 0x72, 12); /* IRQ 12 */ + pnp_set_enable(dev, 1); + + /* Enable EC Channel 0 */ + dev = PNP_DEV (port, KBC1100_EC0); + pnp_set_logical_device(dev); + pnp_set_enable(dev, 1); + + pnp_exit_conf_state(dev); + + /* disable the 1s timer */ + outb(0xE7, 0x64); +} + -- cgit v1.2.3