b657a3c9b7
soon as there's an ACPI 2.0 or later table) * add XSDT support * add more table types This patch will break at least the kontron (and possibly some new boards I missed) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4453 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/*
|
|
* coreboot ACPI Table support
|
|
* written by Stefan Reinauer <stepan@openbios.org>
|
|
* ACPI FADT, FACS, and DSDT table support added by
|
|
* Nick Barker <nick.barker9@btinternet.com>, and those portions
|
|
* (C) Copyright 2004 Nick Barker
|
|
* (C) Copyright 2005 Stefan Reinauer
|
|
*/
|
|
|
|
#include <console/console.h>
|
|
#include <string.h>
|
|
#include <arch/acpi.h>
|
|
|
|
extern unsigned char AmlCode[];
|
|
|
|
unsigned long acpi_fill_mcfg(unsigned long current)
|
|
{
|
|
/* Nothing to do */
|
|
return current;
|
|
}
|
|
|
|
unsigned long acpi_fill_slit(unsigned long current)
|
|
{
|
|
// Not implemented
|
|
return current;
|
|
}
|
|
|
|
unsigned long acpi_fill_madt(unsigned long current)
|
|
{
|
|
/* Nothing to do */
|
|
return current;
|
|
}
|
|
|
|
unsigned long acpi_fill_srat(unsigned long current)
|
|
{
|
|
/* No NUMA, no SRAT */
|
|
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, NULL);
|
|
acpi_write_rsdt(rsdt);
|
|
|
|
/*
|
|
* We explicitly add these tables later on:
|
|
*/
|
|
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(rsdp,fadt);
|
|
|
|
printk_info("ACPI: done.\n");
|
|
return current;
|
|
}
|
|
|