| /* |
| * 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 <arch/io.h> |
| #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); |
| } |
| |