src/southbridge/nvidia/ck804/lpc.c - mirrors/cros/chromiumos/third_party/coreboot - Git at Google

 /*
  * This file is part of the coreboot project.
  *
  * Copyright (C) 2003 Linux Networx
  * Copyright (C) 2003 SuSE Linux AG
  * Copyright (C) 2004 Tyan Computer
  * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
  *
  * 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
  */

 #include <console/console.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pnp.h>
 #include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <pc80/mc146818rtc.h>
 #include <pc80/isa-dma.h>
 #include <arch/io.h>
 #include <arch/ioapic.h>
 #include <cpu/x86/lapic.h>
 #include <stdlib.h>
 #include "ck804.h"

 #define CK804_CHIP_REV 2

 #define NMI_OFF 0

 // 0x7a or e3
 #define PREVIOUS_POWER_STATE 0x7A

 #define MAINBOARD_POWER_OFF 0
 #define MAINBOARD_POWER_ON 1
 #define SLOW_CPU_OFF 0
 #define SLOW_CPU__ON 1

 #ifndef CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL
 #define CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON
 #endif

 static void lpc_common_init(device_t dev)
 {
 	u8 byte;
 	u32 dword;

 	/* I/O APIC initialization. */
 	byte = pci_read_config8(dev, 0x74);
 	byte |= (1 << 0);	/* Enable APIC. */
 	pci_write_config8(dev, 0x74, byte);
 	dword = pci_read_config32(dev, PCI_BASE_ADDRESS_1);	/* 0x14 */

 	setup_ioapic(dword, 0); /* Don't rename IOAPIC ID. */

 #if 1
 	dword = pci_read_config32(dev, 0xe4);
 	dword |= (1 << 23);
 	pci_write_config32(dev, 0xe4, dword);
 #endif
 }

 static void lpc_slave_init(device_t dev)
 {
 	lpc_common_init(dev);
 }

 static void rom_dummy_write(device_t dev)
 {
 	u8 old, new;
 	u8 *p;

 	old = pci_read_config8(dev, 0x88);
 	new = old | 0xc0;
 	if (new != old)
 		pci_write_config8(dev, 0x88, new);
 	/* Enable write. */
 	old = pci_read_config8(dev, 0x6d);
 	new = old | 0x01;
 	if (new != old)
 		pci_write_config8(dev, 0x6d, new);

 	/* Dummy write. */
 	p = (u8 *) 0xffffffe0;
 	old = 0;
 	*p = old;
 	old = *p;

 	/* Disable write. */
 	old = pci_read_config8(dev, 0x6d);
 	new = old & 0xfe;
 	if (new != old)
 		pci_write_config8(dev, 0x6d, new);
 }

 unsigned pm_base = 0;

 static void lpc_init(device_t dev)
 {
 	u8 byte, byte_old;
 	int on, nmi_option;

 	lpc_common_init(dev);

 	pm_base = pci_read_config32(dev, 0x60) & 0xff00;
 	printk(BIOS_INFO, "%s: pm_base = %x \n", __func__, pm_base);

 #if CK804_CHIP_REV == 1
 	if (dev->bus->secondary != 1)
 		return;
 #endif

 	/* Power after power fail */
 	on = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
 	get_option(&on, "power_on_after_fail");
 	byte = pci_read_config8(dev, PREVIOUS_POWER_STATE);
 	byte &= ~0x40;
 	if (!on)
 		byte |= 0x40;
 	pci_write_config8(dev, PREVIOUS_POWER_STATE, byte);
 	printk(BIOS_INFO, "set power %s after power fail\n", on ? "on" : "off");

 	/* Throttle the CPU speed down for testing. */
 	on = SLOW_CPU_OFF;
 	get_option(&on, "slow_cpu");
 	if (on) {
 		u16 pm10_bar;
 		u32 dword;
 		pm10_bar = (pci_read_config16(dev, 0x60) & 0xff00);
 		outl(((on << 1) + 0x10), (pm10_bar + 0x10));
 		dword = inl(pm10_bar + 0x10);
 		on = 8 - on;
 		printk(BIOS_DEBUG, "Throttling CPU %2d.%1.1d percent.\n",
 		       (on * 12) + (on >> 1), (on & 1) * 5);
 	}
 #if 0
 	/* Enable Port 92 fast reset (default is enabled). */
 	byte = pci_read_config8(dev, 0xe8);
 	byte |= ~(1 << 3);
 	pci_write_config8(dev, 0xe8, byte);
 #endif

 	/* Set up NMI on errors. */
 	byte = inb(0x70);		/* RTC70 */
 	byte_old = byte;
 	nmi_option = NMI_OFF;
 	get_option(&nmi_option, "nmi");
 	if (nmi_option)
 		byte &= ~(1 << 7); /* Set NMI. */
 	else
 		byte |= (1 << 7); /* Can't mask NMI from PCI-E and NMI_NOW. */
 	if (byte != byte_old)
 		outb(byte, 0x70);

 	/* Initialize the real time clock (RTC). */
 	rtc_init(0);

 	/* Initialize ISA DMA. */
 	isa_dma_init();

 	rom_dummy_write(dev);
 }

 static void ck804_lpc_read_resources(device_t dev)
 {
 	struct resource *res;
 	unsigned long index;

 	/* Get the normal PCI resources of this device. */
 	/* We got one for APIC, or one more for TRAP. */
 	pci_dev_read_resources(dev);

 	/* HPET */
 	pci_get_resource(dev, 0x44);

 	/* Get resource for ACPI, SYSTEM_CONTROL, ANALOG_CONTROL. */
 	for (index = 0x60; index <= 0x68; index += 4)	/* We got another 3. */
 		pci_get_resource(dev, index);
 	compact_resources(dev);

 	/* Add an extra subtractive resource for both memory and I/O. */
 	res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
 	res->base = 0;
 	res->size = 0x1000;
 	res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
 		     IORESOURCE_ASSIGNED | IORESOURCE_FIXED;

 	res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
 	res->base = 0xff800000;
 	res->size = 0x00800000; /* 8 MB for flash */
 	res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE |
 		     IORESOURCE_ASSIGNED | IORESOURCE_FIXED;

 	if (dev->device != PCI_DEVICE_ID_NVIDIA_CK804_SLAVE) {
 		res = find_resource(dev, 0x14); /* IOAPIC */
 		if (res) {
 			res->base = IO_APIC_ADDR;
 			res->flags |= IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
 		}

 		res = find_resource(dev, 0x44); /* HPET */
 		if (res) {
 			res->base = 0xfed00000;
 			res->flags |= IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
 		}
 	}
 }

 static void ck804_lpc_set_resources(device_t dev)
 {
 	struct resource *res;

 	pci_dev_set_resources(dev);

 	/* APIC */
 	res = find_resource(dev, 0x14);
 	if (res) {
 		pci_write_config32(dev, 0x14, res->base);
 		res->flags |= IORESOURCE_STORED;
 		report_resource_stored(dev, res, "");
 	}

 	/* HPET */
 	res = find_resource(dev, 0x44);
 	if (res) {
 		pci_write_config32(dev, 0x44, res->base|1);
 		res->flags |= IORESOURCE_STORED;
 		report_resource_stored(dev, res, "");
 	}
 }

 /**
  * Enable resources for children devices.
  *
  * This function is called by the global enable_resources() indirectly via the
  * device_operation::enable_resources() method of devices.
  */
 static void ck804_lpc_enable_childrens_resources(device_t dev)
 {
 	struct bus *link;
 	u32 reg, reg_var[4];
 	int i, var_num = 0;

 	reg = pci_read_config32(dev, 0xa0);

 	for (link = dev->link_list; link; link = link->next) {
 		device_t child;
 		for (child = link->children; child; child = child->sibling) {
 			if (child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
 				struct resource *res;
 				for (res = child->resource_list; res; res = res->next) {
 					unsigned long base, end; /* Don't need long long. */
 					if (!(res->flags & IORESOURCE_IO))
 						continue;
 					base = res->base;
 					end = resource_end(res);
 					printk(BIOS_DEBUG, "ck804 lpc decode:%s, base=0x%08lx, end=0x%08lx\n", dev_path(child), base, end);
 					switch (base) {
 					case 0x3f8:	// COM1
 						reg |= (1 << 0);
 						break;
 					case 0x2f8:	// COM2
 						reg |= (1 << 1);
 						break;
 					case 0x378:	// Parallel 1
 						reg |= (1 << 24);
 						break;
 					case 0x3f0:	// FD0
 						reg |= (1 << 20);
 						break;
 					case 0x220:	// Audio 0
 						reg |= (1 << 8);
 						break;
 					case 0x300:	// Midi 0
 						reg |= (1 << 12);
 						break;
 					}
 					if (base == 0x290 || base >= 0x400) {
 						/* Only 4 var; compact them? */
 						if (var_num >= 4)
 							continue;
 						reg |= (1 << (28 + var_num));
 						reg_var[var_num++] = (base & 0xffff) | ((end & 0xffff) << 16);
 					}
 				}
 			}
 		}
 	}
 	pci_write_config32(dev, 0xa0, reg);
 	for (i = 0; i < var_num; i++)
 		pci_write_config32(dev, 0xa8 + i * 4, reg_var[i]);
 }

 static void ck804_lpc_enable_resources(device_t dev)
 {
 	pci_dev_enable_resources(dev);
 	ck804_lpc_enable_childrens_resources(dev);
 }

 static struct device_operations lpc_ops = {
 	.read_resources   = ck804_lpc_read_resources,
 	.set_resources    = ck804_lpc_set_resources,
 	.enable_resources = ck804_lpc_enable_resources,
 	.init             = lpc_init,
 	.scan_bus         = scan_static_bus,
 	// .enable        = ck804_enable,
 	.ops_pci          = &ck804_pci_ops,
 };

 static const struct pci_driver lpc_driver __pci_driver = {
 	.ops    = &lpc_ops,
 	.vendor = PCI_VENDOR_ID_NVIDIA,
 	.device = PCI_DEVICE_ID_NVIDIA_CK804_LPC,
 };

 static const struct pci_driver lpc_driver_pro __pci_driver = {
 	.ops    = &lpc_ops,
 	.vendor = PCI_VENDOR_ID_NVIDIA,
 	.device = PCI_DEVICE_ID_NVIDIA_CK804_PRO,
 };

 #if CK804_CHIP_REV == 1
 static const struct pci_driver lpc_driver_slave __pci_driver = {
 	.ops    = &lpc_ops,
 	.vendor = PCI_VENDOR_ID_NVIDIA,
 	.device = PCI_DEVICE_ID_NVIDIA_CK804_SLAVE,
 };
 #else
 static struct device_operations lpc_slave_ops = {
 	.read_resources   = ck804_lpc_read_resources,
 	.set_resources    = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
 	.init             = lpc_slave_init,
 	// .enable        = ck804_enable,
 	.ops_pci          = &ck804_pci_ops,
 };

 static const struct pci_driver lpc_driver_slave __pci_driver = {
 	.ops    = &lpc_slave_ops,
 	.vendor = PCI_VENDOR_ID_NVIDIA,
 	.device = PCI_DEVICE_ID_NVIDIA_CK804_SLAVE,
 };
 #endif
	/*
	* This file is part of the coreboot project.
	*
	* Copyright (C) 2003 Linux Networx
	* Copyright (C) 2003 SuSE Linux AG
	* Copyright (C) 2004 Tyan Computer
	* Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
	*
	* 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
	*/

	#include <console/console.h>
	#include <device/device.h>
	#include <device/pci.h>
	#include <device/pnp.h>
	#include <device/pci_ids.h>
	#include <device/pci_ops.h>
	#include <pc80/mc146818rtc.h>
	#include <pc80/isa-dma.h>
	#include <arch/io.h>
	#include <arch/ioapic.h>
	#include <cpu/x86/lapic.h>
	#include <stdlib.h>
	#include "ck804.h"

	#define CK804_CHIP_REV 2

	#define NMI_OFF 0

	// 0x7a or e3
	#define PREVIOUS_POWER_STATE 0x7A

	#define MAINBOARD_POWER_OFF 0
	#define MAINBOARD_POWER_ON 1
	#define SLOW_CPU_OFF 0
	#define SLOW_CPU__ON 1

	#ifndef CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL
	#define CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON
	#endif

	static void lpc_common_init(device_t dev)
	{
	u8 byte;
	u32 dword;

	/* I/O APIC initialization. */
	byte = pci_read_config8(dev, 0x74);
	byte \|= (1 << 0); /* Enable APIC. */
	pci_write_config8(dev, 0x74, byte);
	dword = pci_read_config32(dev, PCI_BASE_ADDRESS_1); /* 0x14 */

	setup_ioapic(dword, 0); /* Don't rename IOAPIC ID. */

	#if 1
	dword = pci_read_config32(dev, 0xe4);
	dword \|= (1 << 23);
	pci_write_config32(dev, 0xe4, dword);
	#endif
	}

	static void lpc_slave_init(device_t dev)
	{
	lpc_common_init(dev);
	}

	static void rom_dummy_write(device_t dev)
	{
	u8 old, new;
	u8 *p;

	old = pci_read_config8(dev, 0x88);
	new = old \| 0xc0;
	if (new != old)
	pci_write_config8(dev, 0x88, new);
	/* Enable write. */
	old = pci_read_config8(dev, 0x6d);
	new = old \| 0x01;
	if (new != old)
	pci_write_config8(dev, 0x6d, new);

	/* Dummy write. */
	p = (u8 *) 0xffffffe0;
	old = 0;
	*p = old;
	old = *p;

	/* Disable write. */
	old = pci_read_config8(dev, 0x6d);
	new = old & 0xfe;
	if (new != old)
	pci_write_config8(dev, 0x6d, new);
	}

	unsigned pm_base = 0;

	static void lpc_init(device_t dev)
	{
	u8 byte, byte_old;
	int on, nmi_option;

	lpc_common_init(dev);

	pm_base = pci_read_config32(dev, 0x60) & 0xff00;
	printk(BIOS_INFO, "%s: pm_base = %x \n", __func__, pm_base);

	#if CK804_CHIP_REV == 1
	if (dev->bus->secondary != 1)
	return;
	#endif

	/* Power after power fail */
	on = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
	get_option(&on, "power_on_after_fail");
	byte = pci_read_config8(dev, PREVIOUS_POWER_STATE);
	byte &= ~0x40;
	if (!on)
	byte \|= 0x40;
	pci_write_config8(dev, PREVIOUS_POWER_STATE, byte);
	printk(BIOS_INFO, "set power %s after power fail\n", on ? "on" : "off");

	/* Throttle the CPU speed down for testing. */
	on = SLOW_CPU_OFF;
	get_option(&on, "slow_cpu");
	if (on) {
	u16 pm10_bar;
	u32 dword;
	pm10_bar = (pci_read_config16(dev, 0x60) & 0xff00);
	outl(((on << 1) + 0x10), (pm10_bar + 0x10));
	dword = inl(pm10_bar + 0x10);
	on = 8 - on;
	printk(BIOS_DEBUG, "Throttling CPU %2d.%1.1d percent.\n",
	(on * 12) + (on >> 1), (on & 1) * 5);
	}
	#if 0
	/* Enable Port 92 fast reset (default is enabled). */
	byte = pci_read_config8(dev, 0xe8);
	byte \|= ~(1 << 3);
	pci_write_config8(dev, 0xe8, byte);
	#endif

	/* Set up NMI on errors. */
	byte = inb(0x70); /* RTC70 */
	byte_old = byte;
	nmi_option = NMI_OFF;
	get_option(&nmi_option, "nmi");
	if (nmi_option)
	byte &= ~(1 << 7); /* Set NMI. */
	else
	byte \|= (1 << 7); /* Can't mask NMI from PCI-E and NMI_NOW. */
	if (byte != byte_old)
	outb(byte, 0x70);

	/* Initialize the real time clock (RTC). */
	rtc_init(0);

	/* Initialize ISA DMA. */
	isa_dma_init();

	rom_dummy_write(dev);
	}

	static void ck804_lpc_read_resources(device_t dev)
	{
	struct resource *res;
	unsigned long index;

	/* Get the normal PCI resources of this device. */
	/* We got one for APIC, or one more for TRAP. */
	pci_dev_read_resources(dev);

	/* HPET */
	pci_get_resource(dev, 0x44);

	/* Get resource for ACPI, SYSTEM_CONTROL, ANALOG_CONTROL. */
	for (index = 0x60; index <= 0x68; index += 4) /* We got another 3. */
	pci_get_resource(dev, index);
	compact_resources(dev);

	/* Add an extra subtractive resource for both memory and I/O. */
	res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
	res->base = 0;
	res->size = 0x1000;
	res->flags = IORESOURCE_IO \| IORESOURCE_SUBTRACTIVE \|
	IORESOURCE_ASSIGNED \| IORESOURCE_FIXED;

	res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
	res->base = 0xff800000;
	res->size = 0x00800000; /* 8 MB for flash */
	res->flags = IORESOURCE_MEM \| IORESOURCE_SUBTRACTIVE \|
	IORESOURCE_ASSIGNED \| IORESOURCE_FIXED;

	if (dev->device != PCI_DEVICE_ID_NVIDIA_CK804_SLAVE) {
	res = find_resource(dev, 0x14); /* IOAPIC */
	if (res) {
	res->base = IO_APIC_ADDR;
	res->flags \|= IORESOURCE_ASSIGNED \| IORESOURCE_FIXED;
	}

	res = find_resource(dev, 0x44); /* HPET */
	if (res) {
	res->base = 0xfed00000;
	res->flags \|= IORESOURCE_ASSIGNED \| IORESOURCE_FIXED;
	}
	}
	}

	static void ck804_lpc_set_resources(device_t dev)
	{
	struct resource *res;

	pci_dev_set_resources(dev);

	/* APIC */
	res = find_resource(dev, 0x14);
	if (res) {
	pci_write_config32(dev, 0x14, res->base);
	res->flags \|= IORESOURCE_STORED;
	report_resource_stored(dev, res, "");
	}

	/* HPET */
	res = find_resource(dev, 0x44);
	if (res) {
	pci_write_config32(dev, 0x44, res->base\|1);
	res->flags \|= IORESOURCE_STORED;
	report_resource_stored(dev, res, "");
	}
	}

	/**
	* Enable resources for children devices.
	*
	* This function is called by the global enable_resources() indirectly via the
	* device_operation::enable_resources() method of devices.
	*/
	static void ck804_lpc_enable_childrens_resources(device_t dev)
	{
	struct bus *link;
	u32 reg, reg_var[4];
	int i, var_num = 0;

	reg = pci_read_config32(dev, 0xa0);

	for (link = dev->link_list; link; link = link->next) {
	device_t child;
	for (child = link->children; child; child = child->sibling) {
	if (child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
	struct resource *res;
	for (res = child->resource_list; res; res = res->next) {
	unsigned long base, end; /* Don't need long long. */
	if (!(res->flags & IORESOURCE_IO))
	continue;
	base = res->base;
	end = resource_end(res);
	printk(BIOS_DEBUG, "ck804 lpc decode:%s, base=0x%08lx, end=0x%08lx\n", dev_path(child), base, end);
	switch (base) {
	case 0x3f8: // COM1
	reg \|= (1 << 0);
	break;
	case 0x2f8: // COM2
	reg \|= (1 << 1);
	break;
	case 0x378: // Parallel 1
	reg \|= (1 << 24);
	break;
	case 0x3f0: // FD0
	reg \|= (1 << 20);
	break;
	case 0x220: // Audio 0
	reg \|= (1 << 8);
	break;
	case 0x300: // Midi 0
	reg \|= (1 << 12);
	break;
	}
	if (base == 0x290 \|\| base >= 0x400) {
	/* Only 4 var; compact them? */
	if (var_num >= 4)
	continue;
	reg \|= (1 << (28 + var_num));
	reg_var[var_num++] = (base & 0xffff) \| ((end & 0xffff) << 16);
	}
	}
	}
	}
	}
	pci_write_config32(dev, 0xa0, reg);
	for (i = 0; i < var_num; i++)
	pci_write_config32(dev, 0xa8 + i * 4, reg_var[i]);
	}

	static void ck804_lpc_enable_resources(device_t dev)
	{
	pci_dev_enable_resources(dev);
	ck804_lpc_enable_childrens_resources(dev);
	}

	static struct device_operations lpc_ops = {
	.read_resources = ck804_lpc_read_resources,
	.set_resources = ck804_lpc_set_resources,
	.enable_resources = ck804_lpc_enable_resources,
	.init = lpc_init,
	.scan_bus = scan_static_bus,
	// .enable = ck804_enable,
	.ops_pci = &ck804_pci_ops,
	};

	static const struct pci_driver lpc_driver __pci_driver = {
	.ops = &lpc_ops,
	.vendor = PCI_VENDOR_ID_NVIDIA,
	.device = PCI_DEVICE_ID_NVIDIA_CK804_LPC,
	};

	static const struct pci_driver lpc_driver_pro __pci_driver = {
	.ops = &lpc_ops,
	.vendor = PCI_VENDOR_ID_NVIDIA,
	.device = PCI_DEVICE_ID_NVIDIA_CK804_PRO,
	};

	#if CK804_CHIP_REV == 1
	static const struct pci_driver lpc_driver_slave __pci_driver = {
	.ops = &lpc_ops,
	.vendor = PCI_VENDOR_ID_NVIDIA,
	.device = PCI_DEVICE_ID_NVIDIA_CK804_SLAVE,
	};
	#else
	static struct device_operations lpc_slave_ops = {
	.read_resources = ck804_lpc_read_resources,
	.set_resources = pci_dev_set_resources,
	.enable_resources = pci_dev_enable_resources,
	.init = lpc_slave_init,
	// .enable = ck804_enable,
	.ops_pci = &ck804_pci_ops,
	};

	static const struct pci_driver lpc_driver_slave __pci_driver = {
	.ops = &lpc_slave_ops,
	.vendor = PCI_VENDOR_ID_NVIDIA,
	.device = PCI_DEVICE_ID_NVIDIA_CK804_SLAVE,
	};
	#endif