From b0dd1d91f49eef80016a60bb09e2c1a8cfcc628e Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 30 Mar 2012 15:04:07 -0700 Subject: Add support for ITE IT8772F SuperI/O chip Change-Id: I8e80c22eb0f3cb68f2457be6b2e7894df60ed632 Signed-off-by: Duncan Laurie Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/822 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/superio/ite/it8772f/superio.c | 250 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 250 insertions(+) create mode 100644 src/superio/ite/it8772f/superio.c (limited to 'src/superio/ite/it8772f/superio.c') diff --git a/src/superio/ite/it8772f/superio.c b/src/superio/ite/it8772f/superio.c new file mode 100644 index 0000000000..1361ef2deb --- /dev/null +++ b/src/superio/ite/it8772f/superio.c @@ -0,0 +1,250 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * + * 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 +#include +#include +#include +#include +#include +#include "chip.h" +#include "it8772f.h" + +static void pnp_enter_ext_func_mode(device_t dev) +{ + u16 port = dev->path.pnp.port; + + outb(0x87, port); + outb(0x01, port); + outb(0x55, port); + outb((port == 0x4e) ? 0xaa : 0x55, port); +} + +static void pnp_exit_ext_func_mode(device_t dev) +{ + pnp_write_config(dev, 0x02, 0x02); +} + +static inline u8 it8772f_envc_read(struct resource *res, u8 addr) +{ + outb(addr, res->base + 5); + return inb(res->base + 6); +} + +static inline void it8772f_envc_write(struct resource *res, u8 addr, u8 value) +{ + outb(addr, res->base + 5); + outb(value, res->base + 6); +} + +/* + * Setup External Temperature to read via PECI into TMPINx register + */ +static void it8772f_enable_peci(struct resource *res, int tmpin) +{ + if (tmpin < 1 || tmpin > 3) + return; + + /* Enable PECI interface */ + it8772f_envc_write(res, IT8772F_INTERFACE_SELECT, + IT8772F_INTERFACE_SEL_PECI | + IT8772F_INTERFACE_SPEED_TOLERANCE); + + /* Setup External Temperature using PECI GetTemp */ + it8772f_envc_write(res, IT8772F_EXTEMP_ADDRESS, + PECI_CLIENT_ADDRESS); + it8772f_envc_write(res, IT8772F_EXTEMP_COMMAND, + PECI_GETTEMP_COMMAND); + it8772f_envc_write(res, IT8772F_EXTEMP_WRITE_LENGTH, + PECI_GETTEMP_WRITE_LENGTH); + it8772f_envc_write(res, IT8772F_EXTEMP_READ_LENGTH, + PECI_GETTEMP_READ_LENGTH); + it8772f_envc_write(res, IT8772F_EXTEMP_CONTROL, + IT8772F_EXTEMP_CONTROL_AUTO_4HZ | + IT8772F_EXTEMP_CONTROL_AUTO_START); + + /* External Temperature reported in TMPINx register */ + it8772f_envc_write(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE, + (tmpin & 3) << 6); +} + +/* + * Setup a FAN PWM interface for software control + */ +static void it8772f_enable_fan(struct resource *res, int fan) +{ + u8 reg; + + if (fan < 1 || fan > 3) + return; + + /* Enable 6MHz (23.43kHz PWM) active high output */ + reg = it8772f_envc_read(res, IT8772F_FAN_CTL_MODE); + reg |= IT8772F_FAN_CTL_ON(fan) | + IT8772F_FAN_PWM_CLOCK_6MHZ | + IT8772F_FAN_CTL_POLARITY_HIGH; + it8772f_envc_write(res, IT8772F_FAN_CTL_MODE, reg); + + /* Enable output in smart mode */ + reg = it8772f_envc_read(res, IT8772F_FAN_MAIN_CTL); + reg |= IT8772F_FAN_MAIN_CTL_TAC_SMART(fan); + reg |= IT8772F_FAN_MAIN_CTL_TAC_EN(fan); + it8772f_envc_write(res, IT8772F_FAN_MAIN_CTL, reg); + + switch (fan) { + case 2: + /* Enable software operation */ + it8772f_envc_write(res, IT8772F_FAN_CTL2_PWM_MODE, + IT8772F_FAN_CTL_PWM_MODE_SOFTWARE); + /* Disable Smoothing */ + it8772f_envc_write(res, IT8772F_FAN_CTL2_AUTO_MODE, + IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS); + /* Set a default medium fan speed */ + it8772f_envc_write(res, IT8772F_FAN_CTL2_PWM_START, 0x80); + break; + case 3: + /* Enable software operation */ + it8772f_envc_write(res, IT8772F_FAN_CTL3_PWM_MODE, + IT8772F_FAN_CTL_PWM_MODE_SOFTWARE); + /* Disable Smoothing */ + it8772f_envc_write(res, IT8772F_FAN_CTL3_AUTO_MODE, + IT8772F_FAN_CTL_AUTO_SMOOTHING_DIS); + /* Set a default medium fan speed */ + it8772f_envc_write(res, IT8772F_FAN_CTL3_PWM_START, 0x80); + break; + } +} + +static void it8772f_init(device_t dev) +{ + struct superio_ite_it8772f_config *conf = dev->chip_info; + struct resource *res; + + if (!dev->enabled) + return; + + switch (dev->path.pnp.device) { + case IT8772F_EC: + res = find_resource(dev, PNP_IDX_IO0); + if (!res) + break; + + /* Enable PECI if configured */ + it8772f_enable_peci(res, conf->peci_tmpin); + + /* Enable FANx if configured */ + if (conf->fan1_enable) + it8772f_enable_fan(res, 1); + if (conf->fan2_enable) + it8772f_enable_fan(res, 2); + if (conf->fan3_enable) + it8772f_enable_fan(res, 3); + break; + case IT8772F_GPIO: + /* Set GPIO output levels */ + res = find_resource(dev, PNP_IDX_IO1); + if (res) { + if (conf->gpio_set1) + outb(conf->gpio_set1, res->base + 0); + if (conf->gpio_set2) + outb(conf->gpio_set2, res->base + 1); + if (conf->gpio_set3) + outb(conf->gpio_set3, res->base + 2); + if (conf->gpio_set4) + outb(conf->gpio_set4, res->base + 3); + if (conf->gpio_set5) + outb(conf->gpio_set5, res->base + 4); + if (conf->gpio_set6) + outb(conf->gpio_set6, res->base + 5); + } + break; + case IT8772F_KBCK: + if (!conf->skip_keyboard) { + set_kbc_ps2_mode(); + pc_keyboard_init(&conf->keyboard); + } + break; + case IT8772F_KBCM: + break; + case IT8772F_IR: + break; + } +} + +static void it8772f_pnp_set_resources(device_t dev) +{ + pnp_enter_ext_func_mode(dev); + pnp_set_resources(dev); + pnp_exit_ext_func_mode(dev); +} + +static void it8772f_pnp_enable_resources(device_t dev) +{ + pnp_enter_ext_func_mode(dev); + pnp_enable_resources(dev); + pnp_exit_ext_func_mode(dev); +} + +static void it8772f_pnp_enable(device_t 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 = it8772f_pnp_set_resources, + .enable_resources = it8772f_pnp_enable_resources, + .enable = it8772f_pnp_enable, + .init = it8772f_init, +}; + +static struct pnp_info pnp_dev_info[] = { + /* Floppy Disk Controller */ + { &ops, IT8772F_FDC, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, }, + /* Serial Port 1 */ + { &ops, IT8772F_SP1, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, }, + /* Environmental Controller */ + { &ops, IT8772F_EC, PNP_IO0 | PNP_IO1 | PNP_IRQ0, + {0x0ff8, 0}, {0x0ffc, 4}, }, + /* KBC Keyboard */ + { &ops, IT8772F_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, + {0x0fff, 0}, {0x0fff, 4}, }, + /* KBC Mouse */ + { &ops, IT8772F_KBCM, PNP_IRQ0, }, + /* 27 GPIOs */ + { &ops, IT8772F_GPIO, PNP_IO0 | PNP_IO1, + {0x0fff, 0}, {0x0ff8, 0}, }, + /* Infrared */ + { &ops, IT8772F_IR, PNP_IO0 | PNP_IRQ0, {0x0ff8, 0}, }, +}; + +static void enable_dev(struct device *dev) +{ + pnp_enable_devices(dev, &pnp_ops, + ARRAY_SIZE(pnp_dev_info), pnp_dev_info); +} + +struct chip_operations superio_ite_it8772f_ops = { + CHIP_NAME("ITE IT8772F Super I/O") + .enable_dev = enable_dev, +}; -- cgit v1.2.3