Add support for the Getac P470

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5559 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 370 insertions, 0 deletions

diff --git a/src/mainboard/getac/p470/acpi_tables.c b/src/mainboard/getac/p470/acpi_tables.c
new file mode 100644
index 0000000000..d726678df5
--- /dev/null
+++ b/src/mainboard/getac/p470/acpi_tables.c
@@ -0,0 +1,370 @@
+/*
+ * This file is part of the coreboot project.
+ * 
+ * Copyright (C) 2007-2010 coresystems GmbH
+ *
+ * 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 <types.h>
+#include <string.h>
+#include <console/console.h>
+#include <arch/acpi.h>
+#include <arch/acpigen.h>
+#include <arch/smp/mpspec.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include "dmi.h"
+
+extern unsigned char AmlCode[];
+
+#include "../../../southbridge/intel/i82801gx/i82801gx_nvs.h"
+
+static void acpi_create_gnvs(global_nvs_t *gnvs)
+{
+	memset((void *)gnvs, 0, sizeof(*gnvs));
+	gnvs->apic = 1;
+	gnvs->mpen = 1; /* Enable Multi Processing */
+
+	/* Enable COM port(s) */
+	gnvs->cmap = 0x01;
+	gnvs->cmbp = 0x00;
+
+	/* IGD Displays  */
+	gnvs->ndid = 2;
+	gnvs->did[0] = 0x80000100;
+	gnvs->did[1] = 0x80000410;
+	gnvs->did[2] = 0x80000320;
+	gnvs->did[3] = 0x80000410;
+	gnvs->did[4] = 0x00000005;
+}
+
+static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
+{
+#define HPET_ADDR  0xfed00000ULL
+	acpi_header_t *header = &(hpet->header);
+	acpi_addr_t *addr = &(hpet->addr);
+
+	memset((void *) hpet, 0, sizeof(acpi_hpet_t));
+
+	/* fill out header fields */
+	memcpy(header->signature, "HPET", 4);
+	memcpy(header->oem_id, OEM_ID, 6);
+	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+	memcpy(header->asl_compiler_id, ASLC, 4);
+
+	header->length = sizeof(acpi_hpet_t);
+	header->revision = 1;
+
+	/* fill out HPET address */
+	addr->space_id = 0;	/* Memory */
+	addr->bit_width = 64;
+	addr->bit_offset = 0;
+	addr->addrl = HPET_ADDR & 0xffffffff;
+	addr->addrh = HPET_ADDR >> 32;
+
+	hpet->id = 0x8086a201;	/* Intel */
+	hpet->number = 0x00;
+	hpet->min_tick = 0x0080;
+
+	header->checksum =
+	    acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
+}
+
+static long acpi_create_ecdt(acpi_ecdt_t * ecdt)
+{
+	/* Attention: Make sure these match the values from 
+	 * the DSDT's ec.asl
+	 */
+	static const char ec_id[] = "\\_SB.PCI0.LPCB.EC0";
+	int ecdt_len = sizeof(acpi_ecdt_t) + strlen(ec_id) + 1;
+
+	acpi_header_t *header = &(ecdt->header);
+
+	memset((void *) ecdt, 0, ecdt_len);
+
+	/* fill out header fields */
+	memcpy(header->signature, "ECDT", 4);
+	memcpy(header->oem_id, OEM_ID, 6);
+	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+	memcpy(header->asl_compiler_id, ASLC, 4);
+
+	header->length = ecdt_len;
+	header->revision = 1;
+
+	/* Location of the two EC registers */
+	ecdt->ec_control.space_id = ACPI_ADDRESS_SPACE_IO;
+	ecdt->ec_control.bit_width = 8;
+	ecdt->ec_control.bit_offset = 0;
+	ecdt->ec_control.addrl = 0x66;
+	ecdt->ec_control.addrh = 0;
+
+	ecdt->ec_data.space_id = ACPI_ADDRESS_SPACE_IO;	/* Memory */
+	ecdt->ec_data.bit_width = 8;
+	ecdt->ec_data.bit_offset = 0;
+	ecdt->ec_data.addrl = 0x62;
+	ecdt->ec_data.addrh = 0;
+
+	ecdt->uid = 1; // Must match _UID of the EC0 node.
+	
+	ecdt->gpe_bit = 23; // SCI interrupt within GPEx_STS
+
+	strncpy((char *)ecdt->ec_id, ec_id, strlen(ec_id));
+
+	header->checksum =
+	    acpi_checksum((void *) ecdt, ecdt_len);
+
+	return header->length;
+}
+
+#define IO_APIC_ADDR	0xfec00000UL
+
+unsigned long acpi_fill_madt(unsigned long current)
+{
+	/* Local APICs */
+	current = acpi_create_madt_lapics(current);
+
+	/* IOAPIC */
+	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
+				2, IO_APIC_ADDR, 0);
+
+	/* INT_SRC_OVR */
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
+		 current, 0, 0, 2, 0);
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
+		 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
+
+	/* LAPIC_NMI */
+	current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
+				current, 0, 0x0005, 0x01);
+	current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
+				current, 1, 0x0005, 0x01);
+
+	return current;
+}
+
+unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
+{
+	generate_cpu_entries();
+	return (unsigned long) (acpigen_get_current());
+}
+
+unsigned long acpi_fill_slit(unsigned long current)
+{
+	// Not implemented
+	return current;
+}
+
+unsigned long acpi_fill_srat(unsigned long current)
+{
+	/* No NUMA, no SRAT */
+	return current;
+}
+
+void smm_setup_structures(void *gnvs, void *tcg, void *smi1);
+
+#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
+unsigned long write_acpi_tables(unsigned long start)
+{
+	unsigned long current;
+	int i;
+	acpi_rsdp_t *rsdp;
+	acpi_rsdt_t *rsdt;
+	acpi_xsdt_t *xsdt;
+	acpi_hpet_t *hpet;
+	acpi_madt_t *madt;
+	acpi_mcfg_t *mcfg;
+	acpi_fadt_t *fadt;
+	acpi_facs_t *facs;
+#if CONFIG_HAVE_ACPI_SLIC
+	acpi_header_t *slic;
+#endif
+	acpi_header_t *ssdt;
+	acpi_header_t *dsdt;
+	acpi_header_t *ecdt;
+
+	void *gnvs, *smi1;
+
+	current = start;
+
+	/* Align ACPI tables to 16byte */
+	ALIGN_CURRENT;
+
+	printk(BIOS_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);
+	ALIGN_CURRENT;
+	rsdt = (acpi_rsdt_t *) current;
+	current += sizeof(acpi_rsdt_t);
+	ALIGN_CURRENT;
+	xsdt = (acpi_xsdt_t *) current;
+	current += sizeof(acpi_xsdt_t);
+	ALIGN_CURRENT;
+
+	/* clear all table memory */
+	memset((void *) start, 0, current - start);
+
+	acpi_write_rsdp(rsdp, rsdt, xsdt);
+	acpi_write_rsdt(rsdt);
+	acpi_write_xsdt(xsdt);
+
+	/*
+	 * We explicitly add these tables later on:
+	 */
+	printk(BIOS_DEBUG, "ACPI:    * HPET\n");
+
+	hpet = (acpi_hpet_t *) current;
+	current += sizeof(acpi_hpet_t);
+	ALIGN_CURRENT;
+	acpi_create_intel_hpet(hpet);
+	acpi_add_table(rsdp, hpet);
+
+	/* If we want to use HPET Timers Linux wants an MADT */
+	printk(BIOS_DEBUG, "ACPI:    * MADT\n");
+
+	madt = (acpi_madt_t *) current;
+	acpi_create_madt(madt);
+	current += madt->header.length;
+	ALIGN_CURRENT;
+	acpi_add_table(rsdp, madt);
+
+	printk(BIOS_DEBUG, "ACPI:    * MCFG\n");
+	mcfg = (acpi_mcfg_t *) current;
+	acpi_create_mcfg(mcfg);
+	current += mcfg->header.length;
+	ALIGN_CURRENT;
+	acpi_add_table(rsdp, mcfg);
+
+	printk(BIOS_DEBUG, "ACPI:     * FACS\n");
+	facs = (acpi_facs_t *) current;
+	current += sizeof(acpi_facs_t);
+	ALIGN_CURRENT;
+	acpi_create_facs(facs);
+
+	dsdt = (acpi_header_t *) current;
+	memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
+	current += dsdt->length;
+	memcpy(dsdt, &AmlCode, dsdt->length);
+
+	/* Fix up global NVS region for SMI handler. The GNVS region lives 
+	 * in the (high) table area. The low memory map looks like this:
+	 *
+	 * 0x00000000 - 0x000003ff	Real Mode IVT
+	 * 0x00000400 - 0x000004ff	BDA (somewhat unused)
+	 * 0x00000500 - 0x00000518	coreboot table forwarder
+	 * 0x00000600 - 0x00000???	realmode trampoline
+	 * 0x0007c000 - 0x0007dfff	OS boot sector (unused?)
+	 * 0x0007e000 - 0x0007ffff	free to use (so no good for acpi+smi)
+	 * 0x00080000 - 0x0009fbff	usable ram
+	 * 0x0009fc00 - 0x0009ffff	EBDA (unused?)
+	 * 0x000a0000 - 0x000bffff	VGA memory
+	 * 0x000c0000 - 0x000cffff	VGA option rom
+	 * 0x000d0000 - 0x000dffff	free for other option roms?
+	 * 0x000e0000 - 0x000fffff	SeaBIOS? (conflict with low tables:)
+	 * 0x000f0000 - 0x000f03ff	PIRQ table
+	 * 0x000f0400 - 0x000f66??	ACPI tables
+	 * 0x000f66?? - 0x000f????	DMI tables
+	 */
+
+	ALIGN_CURRENT;
+
+	/* Pack GNVS into the ACPI table area */
+	for (i=0; i < dsdt->length; i++) {
+		if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
+			printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08x\n", i, (u32)current);
+			*(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
+			break;
+		}
+	}
+
+	/* And fill it */
+	acpi_create_gnvs((global_nvs_t *)current);
+
+	/* Keep pointer around */
+	gnvs = (void *)current;
+
+	current += 0x100;
+	ALIGN_CURRENT;
+
+	for (i=0; i < dsdt->length; i++) {
+		if (*(u32*)(((u32)dsdt) + i) == 0xC0DEDEAD) {
+			printk(BIOS_DEBUG, "ACPI: Patching up SMI1 area in DSDT at offset 0x%04x -> 0x%08x\n", i, (u32)current);
+			*(u32*)(((u32)dsdt) + i) = current; // 0x100 bytes
+			break;
+		}
+	}
+
+	/* Keep pointer around */
+	smi1 = (void *)current;
+
+	current += 0x100;
+	ALIGN_CURRENT;
+	
+	/* And tell SMI about it */
+	smm_setup_structures(gnvs, NULL, smi1);
+
+	/* We patched up the DSDT, so we need to recalculate the checksum */
+	dsdt->checksum = 0;
+	dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
+
+	printk(BIOS_DEBUG, "ACPI:     * DSDT @ %p Length %x\n", dsdt,
+		     dsdt->length);
+
+	printk(BIOS_DEBUG, "ACPI:     * ECDT\n");
+	ecdt = (acpi_header_t *)current;
+	current += acpi_create_ecdt((acpi_ecdt_t *)current);
+	ALIGN_CURRENT;
+	acpi_add_table(rsdp, ecdt);
+
+#if CONFIG_HAVE_ACPI_SLIC
+	printk(BIOS_DEBUG, "ACPI:     * SLIC\n");
+	slic = (acpi_header_t *)current;
+	current += acpi_create_slic(current);
+	ALIGN_CURRENT;
+	acpi_add_table(rsdp, slic);
+#endif
+
+	printk(BIOS_DEBUG, "ACPI:     * FADT\n");
+	fadt = (acpi_fadt_t *) current;
+	current += sizeof(acpi_fadt_t);
+	ALIGN_CURRENT;
+
+	acpi_create_fadt(fadt, facs, dsdt);
+	acpi_add_table(rsdp, fadt);
+
+	printk(BIOS_DEBUG, "ACPI:     * SSDT\n");
+	ssdt = (acpi_header_t *)current;
+	acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
+	current += ssdt->length;
+	acpi_add_table(rsdp, ssdt);
+	ALIGN_CURRENT;
+
+	printk(BIOS_DEBUG, "current = %lx\n", current);
+
+	printk(BIOS_DEBUG, "ACPI:     * DMI (Linux workaround)\n");
+	memcpy((void *)0xfff80, dmi_table, DMI_TABLE_SIZE);
+#if CONFIG_WRITE_HIGH_TABLES == 1
+	memcpy((void *)current, dmi_table, DMI_TABLE_SIZE);
+	current += DMI_TABLE_SIZE;
+	ALIGN_CURRENT;
+#endif
+
+	printk(BIOS_INFO, "ACPI: done.\n");
+	return current;
+}