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/*
* This file is part of the coreboot project.
*
* (C) 2003 Linux Networx, SuSE Linux AG
* 2006.1 yhlu add dest apicid for IRQ0
*
* 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.
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <pc80/mc146818rtc.h>
#include <pc80/isa-dma.h>
#include <cpu/x86/lapic.h>
#include <arch/ioapic.h>
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <cpu/amd/powernow.h>
#endif
#include <stdlib.h>
#include <string.h>
#include "amd8111.h"
#define NMI_OFF 0
static void enable_hpet(struct device *dev)
{
unsigned long hpet_address;
pci_write_config32(dev, 0xa0, CONFIG_HPET_ADDRESS|1);
hpet_address = pci_read_config32(dev,0xa0)& 0xfffffffe;
printk(BIOS_DEBUG, "enabling HPET @0x%lx\n", hpet_address);
}
static void lpc_init(struct device *dev)
{
uint8_t byte;
int nmi_option;
/* IO APIC initialization */
byte = pci_read_config8(dev, 0x4B);
byte |= 1;
pci_write_config8(dev, 0x4B, byte);
/* Don't rename IO APIC */
setup_ioapic(VIO_APIC_VADDR, 0);
/* posted memory write enable */
byte = pci_read_config8(dev, 0x46);
pci_write_config8(dev, 0x46, byte | (1<<0));
/* Enable 5Mib Rom window */
byte = pci_read_config8(dev, 0x43);
byte |= 0xc0;
pci_write_config8(dev, 0x43, byte);
/* Enable Port 92 fast reset */
byte = pci_read_config8(dev, 0x41);
byte |= (1 << 5);
pci_write_config8(dev, 0x41, byte);
/* Enable Error reporting */
/* Set up sync flood detected */
byte = pci_read_config8(dev, 0x47);
byte |= (1 << 1);
pci_write_config8(dev, 0x47, byte);
/* Set up NMI on errors */
byte = pci_read_config8(dev, 0x40);
byte |= (1 << 1); /* clear PW2LPC error */
byte |= (1 << 6); /* clear LPCERR */
pci_write_config8(dev, 0x40, byte);
nmi_option = NMI_OFF;
get_option(&nmi_option, "nmi");
if (nmi_option) {
byte |= (1 << 7); /* set NMI */
pci_write_config8(dev, 0x40, byte);
}
/* Initialize the real time clock */
cmos_init(0);
/* Initialize isa dma */
isa_dma_init();
/* Initialize the High Precision Event Timers */
enable_hpet(dev);
}
static void amd8111_lpc_read_resources(struct device *dev)
{
struct resource *res;
/* Get the normal PCI resources of this device. */
pci_dev_read_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;
res = new_resource(dev, 3); /* IOAPIC */
res->base = IO_APIC_ADDR;
res->size = 0x00001000;
res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}
static void lpci_set_subsystem(struct device *dev, unsigned vendor,
unsigned device)
{
pci_write_config32(dev, 0x70,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
extern u16 pm_base;
unsigned long acpi_fill_mcfg(unsigned long current)
{
/* Just a dummy */
return current;
}
static void southbridge_acpi_fill_ssdt_generator(struct device *device) {
#if IS_ENABLED(CONFIG_SET_FIDVID)
amd_generate_powernow(pm_base + 0x10, 6, 1);
acpigen_write_mainboard_resources("\\_SB.PCI0.MBRS", "_CRS");
#endif
}
#endif
static struct pci_operations lops_pci = {
.set_subsystem = lpci_set_subsystem,
};
static struct device_operations lpc_ops = {
.read_resources = amd8111_lpc_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = lpc_init,
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
.write_acpi_tables = acpi_write_hpet,
.acpi_fill_ssdt_generator = southbridge_acpi_fill_ssdt_generator,
#endif
.scan_bus = scan_lpc_bus,
.enable = amd8111_enable,
.ops_pci = &lops_pci,
};
static const struct pci_driver lpc_driver __pci_driver = {
.ops = &lpc_ops,
.vendor = PCI_VENDOR_ID_AMD,
.device = PCI_DEVICE_ID_AMD_8111_ISA,
};
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