| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2000 AG Electronics Ltd. |
| * Copyright (C) 2003-2004 Linux Networx |
| * Copyright (C) 2004 Tyan |
| * Copyright (C) 2007 AMD |
| * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * 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/io.h> |
| #include <device/device.h> |
| #include <device/pnp.h> |
| #include <console/console.h> |
| #include <string.h> |
| #include <bitops.h> |
| #include <uart8250.h> |
| #include <pc80/keyboard.h> |
| #include <pc80/mc146818rtc.h> |
| #include <stdlib.h> |
| #include "chip.h" |
| #include "w83627ehg.h" |
| |
| static void pnp_enter_ext_func_mode(device_t dev) |
| { |
| outb(0x87, dev->path.pnp.port); |
| outb(0x87, dev->path.pnp.port); |
| } |
| |
| static void pnp_exit_ext_func_mode(device_t dev) |
| { |
| outb(0xaa, dev->path.pnp.port); |
| } |
| |
| static void pnp_write_index(unsigned long port_base, uint8_t reg, uint8_t value) |
| { |
| outb(reg, port_base); |
| outb(value, port_base + 1); |
| } |
| |
| static uint8_t pnp_read_index(unsigned long port_base, uint8_t reg) |
| { |
| outb(reg, port_base); |
| return inb(port_base + 1); |
| } |
| |
| static void enable_hwm_smbus(device_t dev) { |
| /* Set the pin 91,92 as I2C bus. */ |
| uint8_t reg, value; |
| reg = 0x2a; |
| value = pnp_read_config(dev, reg); |
| value |= (1 << 1); |
| pnp_write_config(dev, reg, value); |
| } |
| |
| static void init_acpi(device_t dev) |
| { |
| uint8_t value = 0x20; |
| uint32_t power_on = 1; |
| |
| get_option("power_on_after_fail", &power_on); |
| pnp_enter_ext_func_mode(dev); |
| pnp_write_index(dev->path.pnp.port, 7, 0x0a); |
| value = pnp_read_config(dev, 0xe4); |
| value &= ~(3 << 5); |
| if (power_on) { |
| value |= (1 << 5); |
| } |
| pnp_write_config(dev, 0xe4, value); |
| pnp_exit_ext_func_mode(dev); |
| } |
| |
| static void init_hwm(unsigned long base) |
| { |
| int i; |
| uint8_t reg, value; |
| |
| /* reg mask data */ |
| unsigned hwm_reg_values[] = { |
| 0x40, 0xff, 0x81, /* Start HWM. */ |
| 0x48, 0x7f, 0x2a, /* Set SMBus base to 0x54 >> 1. */ |
| }; |
| |
| for(i = 0; i < ARRAY_SIZE(hwm_reg_values); i += 3) { |
| reg = hwm_reg_values[i]; |
| value = pnp_read_index(base, reg); |
| value &= 0xff & (~(hwm_reg_values[i + 1])); |
| value |= 0xff & hwm_reg_values[i + 2]; |
| // printk_debug("base = 0x%04x, reg = 0x%02x, value = 0x%02x\r\n", base, reg,value); |
| pnp_write_index(base, reg, value); |
| } |
| } |
| |
| static void w83627ehg_init(device_t dev) |
| { |
| struct superio_winbond_w83627ehg_config *conf; |
| struct resource *res0, *res1; |
| if (!dev->enabled) { |
| return; |
| } |
| conf = dev->chip_info; |
| switch(dev->path.pnp.device) { |
| case W83627EHG_SP1: |
| res0 = find_resource(dev, PNP_IDX_IO0); |
| init_uart8250(res0->base, &conf->com1); |
| break; |
| case W83627EHG_SP2: |
| res0 = find_resource(dev, PNP_IDX_IO0); |
| init_uart8250(res0->base, &conf->com2); |
| break; |
| case W83627EHG_KBC: |
| res0 = find_resource(dev, PNP_IDX_IO0); |
| res1 = find_resource(dev, PNP_IDX_IO1); |
| init_pc_keyboard(res0->base, res1->base, &conf->keyboard); |
| break; |
| case W83627EHG_HWM: |
| res0 = find_resource(dev, PNP_IDX_IO0); |
| #define HWM_INDEX_PORT 5 |
| init_hwm(res0->base + HWM_INDEX_PORT); |
| break; |
| case W83627EHG_ACPI: |
| init_acpi(dev); |
| break; |
| } |
| } |
| |
| void w83627ehg_pnp_set_resources(device_t dev) |
| { |
| pnp_enter_ext_func_mode(dev); |
| pnp_set_resources(dev); |
| pnp_exit_ext_func_mode(dev); |
| } |
| |
| void w83627ehg_pnp_enable_resources(device_t dev) |
| { |
| pnp_enter_ext_func_mode(dev); |
| pnp_enable_resources(dev); |
| |
| switch (dev->path.pnp.device) { |
| case W83627EHG_HWM: |
| printk_debug("w83627ehg hwm smbus enabled\n"); |
| enable_hwm_smbus(dev); |
| break; |
| } |
| |
| pnp_exit_ext_func_mode(dev); |
| } |
| |
| void w83627ehg_pnp_enable(device_t dev) |
| { |
| if (!dev->enabled) { |
| pnp_enter_ext_func_mode(dev); |
| pnp_set_logical_device(dev); |
| pnp_set_enable(dev, 0); |
| pnp_exit_ext_func_mode(dev); |
| } |
| } |
| |
| static struct device_operations ops = { |
| .read_resources = pnp_read_resources, |
| .set_resources = w83627ehg_pnp_set_resources, |
| .enable_resources = w83627ehg_pnp_enable_resources, |
| .enable = w83627ehg_pnp_enable, |
| .init = w83627ehg_init, |
| }; |
| |
| static struct pnp_info pnp_dev_info[] = { |
| { &ops, W83627EHG_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, }, |
| { &ops, W83627EHG_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, }, |
| { &ops, W83627EHG_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, }, |
| { &ops, W83627EHG_SP2, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, }, |
| // No 4 { 0,}, |
| { &ops, W83627EHG_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, }, |
| { &ops, W83627EHG_SFI, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, }, |
| { &ops, W83627EHG_WDTO_PLED, }, |
| { &ops, W83627EHG_ACPI, }, |
| { &ops, W83627EHG_HWM, PNP_IO0 | PNP_IRQ0, { 0xff8, 0 }, }, |
| { &ops, W83627EHG_GAME, PNP_IO0, { 0x7ff, 0 }, }, |
| { &ops, W83627EHG_MIDI, PNP_IO1 | PNP_IRQ0, { 0x7ff, 0 } , {0x7fe, 0x4}, }, |
| { &ops, W83627EHG_GPIO1, }, |
| { &ops, W83627EHG_GPIO2, }, |
| { &ops, W83627EHG_GPIO3, }, |
| { &ops, W83627EHG_GPIO4, }, |
| { &ops, W83627EHG_GPIO5, }, |
| { &ops, W83627EHG_GPIO6, }, |
| }; |
| |
| static void enable_dev(struct device *dev) |
| { |
| pnp_enable_devices(dev, &ops, |
| ARRAY_SIZE(pnp_dev_info), pnp_dev_info); |
| } |
| |
| struct chip_operations superio_winbond_w83627ehg_ops = { |
| CHIP_NAME("Winbond W83627EHG Super I/O") |
| .enable_dev = enable_dev, |
| }; |
| |