diff options
Diffstat (limited to 'src/superio/intel/i8900/superio.c')
-rw-r--r-- | src/superio/intel/i8900/superio.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/superio/intel/i8900/superio.c b/src/superio/intel/i8900/superio.c new file mode 100644 index 0000000000..f92f457253 --- /dev/null +++ b/src/superio/intel/i8900/superio.c @@ -0,0 +1,90 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Arastra, 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; 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. + */ + +#include <stdlib.h> +#include <device/device.h> +#include <device/pnp.h> +#include <drivers/uart/uart8250reg.h> +#include "i8900.h" +#include <arch/io.h> + +static void pnp_enter_ext_func_mode(struct device *dev) +{ + outb(0x80, dev->path.pnp.port); + outb(0x86, dev->path.pnp.port); +} + +static void pnp_exit_ext_func_mode(struct device *dev) +{ + outb(0x68, dev->path.pnp.port); + outb(0x08, dev->path.pnp.port); +} + +static void i8900_init(struct device *dev) +{ + if (!dev->enabled) + return; +} + +static void i8900_pnp_set_resources(struct device *dev) +{ + pnp_enter_ext_func_mode(dev); + pnp_set_resources(dev); + pnp_exit_ext_func_mode(dev); +} + +static void i8900_pnp_enable_resources(struct device *dev) +{ + pnp_enter_ext_func_mode(dev); + pnp_enable_resources(dev); + pnp_exit_ext_func_mode(dev); +} + +static void i8900_pnp_enable(struct device *dev) +{ + pnp_enter_ext_func_mode(dev); + pnp_set_logical_device(dev); + pnp_set_enable(dev, !!dev->enabled); + pnp_exit_ext_func_mode(dev); +} + +static struct device_operations ops = { + .read_resources = pnp_read_resources, + .set_resources = i8900_pnp_set_resources, + .enable_resources = i8900_pnp_enable_resources, + .enable = i8900_pnp_enable, + .init = i8900_init, +}; + +static struct pnp_info pnp_dev_info[] = { + { &ops, I8900_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, }, + { &ops, I8900_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, }, + { &ops, I8900_WDT, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, }, +}; + +static void enable_dev(struct device *dev) +{ + pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info); +} + +struct chip_operations superio_intel_i8900_ops = { + CHIP_NAME("Intel 8900 Super I/O") + .enable_dev = enable_dev, +}; |