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/*
* LinuxBIOS ACPI support for AMD Solo
* written by Stefan Reinauer <stepan@openbios.org>
* (C) 2005 Stefan Reinauer
*/
#include <console/console.h>
#include <string.h>
#include <arch/acpi.h>
#include <device/pci.h>
unsigned long acpi_dump_apics(unsigned long current)
{
#define IO_APIC_ADDR 0xfec00000UL
/* create all subtables for 1p */
current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 0, 0);
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, 2,
IO_APIC_ADDR);
current += acpi_create_madt_irqoverride( (acpi_madt_irqoverride_t *)
current, 0, 0, 2, 1 /* active high */);
current += acpi_create_madt_irqoverride( (acpi_madt_irqoverride_t *)
current, 0, 9, 9, 0xf /* active low, level triggered */);
current += acpi_create_madt_lapic_nmi( (acpi_madt_lapic_nmi_t *)
current, 0, 5, 1);
return current;
}
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
acpi_rsdp_t *rsdp;
acpi_rsdt_t *rsdt;
acpi_hpet_t *hpet;
acpi_madt_t *madt;
acpi_fadt_t *fadt;
acpi_facs_t *facs;
acpi_header_t *dsdt;
/* Align ACPI tables to 16byte */
start = ( start + 0x0f ) & -0x10;
current = start;
printk_info("ACPI: Writing ACPI tables at %lx...\n", start);
/* We need at least an RSDP and an RSDT Table */
rsdp = (acpi_rsdp_t *) current;
current += sizeof(acpi_rsdp_t);
rsdt = (acpi_rsdt_t *) current;
current += sizeof(acpi_rsdt_t);
/* clear all table memory */
memset((void *)start, 0, current - start);
acpi_write_rsdp(rsdp, rsdt);
acpi_write_rsdt(rsdt);
/*
* We explicitly add these tables later on:
*/
printk_debug("ACPI: * HPET\n");
hpet = (acpi_hpet_t *) current;
current += sizeof(acpi_hpet_t);
acpi_create_hpet(hpet);
acpi_add_table(rsdt,hpet);
/* If we want to use HPET Timers Linux wants an MADT */
printk_debug("ACPI: * MADT\n");
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current+=madt->header.length;
acpi_add_table(rsdt,madt);
#ifdef HAVE_ACPI_FADT
printk_debug("ACPI: * FACS\n");
facs = (acpi_facs_t *) current;
current += sizeof(acpi_facs_t);
acpi_create_facs(facs);
dsdt = (acpi_header_t *)current;
current += ((acpi_header_t *)AmlCode)->length;
memcpy((void *)dsdt,(void *)AmlCode, ((acpi_header_t *)AmlCode)->length);
dsdt->checksum = 0; // don't trust intel iasl compiler to get this right
dsdt->checksum = acpi_checksum(dsdt,dsdt->length);
printk_debug("ACPI: * DSDT @ %08x Length %x\n",dsdt,dsdt->length);
printk_debug("ACPI: * FADT\n");
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
acpi_create_fadt(fadt,facs,dsdt);
acpi_add_table(rsdt,fadt);
#endif
printk_info("ACPI: done.\n");
return current;
}
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