preliminary Intel D945GCLF Atom+i945 support.

ram init fails, as the i945 driver currently only supports the mobile version
of the chipset..

Not sure how much sense it makes to check this in, but since it's a nice and
cheap board, maybe someone wants to work on this.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4879 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 360 insertions, 0 deletions

diff --git a/src/mainboard/intel/d945gclf/acpi_tables.c b/src/mainboard/intel/d945gclf/acpi_tables.c
new file mode 100644
index 0000000000..7439b7979a
--- /dev/null
+++ b/src/mainboard/intel/d945gclf/acpi_tables.c
@@ -0,0 +1,360 @@
+/*
+ * This file is part of the coreboot project.
+ * 
+ * Copyright (C) 2007-2009 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 <cpu/x86/msr.h>
+#include "dmi.h"
+
+#define OLD_ACPI 0
+
+extern unsigned char AmlCode[];
+#if CONFIG_HAVE_ACPI_SLIC
+unsigned long acpi_create_slic(unsigned long current);
+#endif
+void generate_cpu_entries(void); // from cpu/intel/speedstep
+unsigned long acpi_fill_mcfg(unsigned long current); // from northbridge/intel/i945
+
+#if OLD_ACPI
+typedef struct acpi_oemb {
+	acpi_header_t header;
+	u8  ss;
+	u16 iost;
+	u32 topm;
+	u32 roms;
+	u32 mg1b;
+	u32 mg1l;
+	u32 mg2b;
+	u32 mg2l;
+	u8  rsvd;
+	u8  dmax;
+	u32 hpta;
+	u32 cpb0;
+	u32 cpb1;
+	u32 cpb2;
+	u32 cpb3;
+	u8  assb;
+	u8  aotb;
+	u32 aaxb;
+	u8  smif;
+	u8  dtse;
+	u8  dts1;
+	u8  dts2;
+	u8  mpen;
+} __attribute__((packed)) acpi_oemb_t;
+#endif
+
+typedef struct acpi_gnvs {
+	// 0x00
+	u16 osys;
+	u8  smif;
+	u8  reserved[13];
+	// 0x10
+	u8  mpen;
+} __attribute__((packed)) acpi_gnvs_t;
+
+#if OLD_ACPI
+void acpi_create_oemb(acpi_oemb_t *oemb)
+{
+	acpi_header_t *header = &(oemb->header);
+	unsigned long tolud;
+
+	memset (oemb, 0, sizeof(*oemb));
+
+	/* fill out header fields */
+	memcpy(header->signature, "OEMB", 4);
+	memcpy(header->oem_id, OEM_ID, 6);
+	memcpy(header->oem_table_id, "COREBOOT", 8);
+	memcpy(header->asl_compiler_id, ASLC, 4);
+
+	header->length = sizeof(acpi_oemb_t);
+	header->revision = 1;
+
+	oemb->ss   =   0x09; // ss1 + ss 4
+	oemb->iost = 0x0403; // ??
+
+        tolud = pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c);
+	oemb->topm = tolud;
+
+	oemb->roms = 0xfff00000; // 1M hardcoded
+
+	oemb->mg1b = 0x000d0000;
+	oemb->mg1l = 0x00010000;
+
+	oemb->mg2b = tolud;
+	oemb->mg2l = 0-tolud;
+
+	oemb->dmax = 0x87;
+	oemb->hpta = 0x000e36c0;
+
+	header->checksum =
+	    acpi_checksum((void *) oemb, sizeof(acpi_oemb_t));
+
+};
+#endif
+
+void acpi_create_gnvs(acpi_gnvs_t *gnvs)
+{
+	memset((void *)gnvs, 0, sizeof(*gnvs));
+	gnvs->mpen = 1;
+}
+
+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, "COREBOOT", 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));
+}
+
+#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);
+
+	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_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
+#if OLD_ACPI
+	acpi_oemb_t *oemb;
+#endif
+	acpi_gnvs_t *gnvs;
+	acpi_header_t *ssdt;
+	acpi_header_t *dsdt;
+
+	current = start;
+
+	/* Align ACPI tables to 16byte */
+	ALIGN_CURRENT;
+
+	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);
+	ALIGN_CURRENT;
+	rsdt = (acpi_rsdt_t *) current;
+	current += sizeof(acpi_rsdt_t);
+	ALIGN_CURRENT;
+
+	/* 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:    * 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_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_debug("ACPI:    * MCFG\n");
+	mcfg = (acpi_mcfg_t *) current;
+	acpi_create_mcfg(mcfg);
+	current += mcfg->header.length;
+	ALIGN_CURRENT;
+	acpi_add_table(rsdp, mcfg);
+
+#if OLD_ACPI
+	printk_debug("ACPI:    * OEMB\n");
+	oemb=(acpi_oemb_t *)current;
+	current += sizeof(acpi_oemb_t);
+	ALIGN_CURRENT;
+	acpi_create_oemb(oemb);
+	acpi_add_table(rsdp, oemb);
+#endif
+
+	printk_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;
+	current += ((acpi_header_t *) AmlCode)->length;
+	memcpy((void *) dsdt, (void *) AmlCode,
+	       ((acpi_header_t *) AmlCode)->length);
+
+#if OLD_ACPI
+	for (i=0; i < dsdt->length; i++) {
+		if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBEEF) {
+			printk_debug("ACPI: Patching up DSDT at offset 0x%04x -> 0x%08x\n", i, 0x24 + (u32)oemb);
+			*(u32*)(((u32)dsdt) + i) = 0x24 + (u32)oemb;
+			break;
+		}
+	}
+#endif
+
+	ALIGN_CURRENT;
+
+	/* Pack GNVS into the ACPI table area */
+	for (i=0; i < dsdt->length; i++) {
+		if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
+			printk_debug("ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08x\n", i, current);
+			*(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
+			break;
+		}
+	}
+
+	/* And fill it */
+	acpi_create_gnvs(current);
+
+	current += 0x100;
+	ALIGN_CURRENT;
+
+	/* And tell SMI about it */
+	smm_setup_structures((void *)current, NULL, NULL);
+
+	/* We patched up the DSDT, so we need to recalculate the checksum */
+	dsdt->checksum = 0;
+	dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
+
+	printk_debug("ACPI:     * DSDT @ %p Length %x\n", dsdt,
+		     dsdt->length);
+
+#if CONFIG_HAVE_ACPI_SLIC
+	printk_debug("ACPI:     * SLIC\n");
+	slic = (acpi_header_t *)current;
+	current += acpi_create_slic(current);
+	ALIGN_CURRENT;
+	acpi_add_table(rsdp, slic);
+#endif
+
+	printk_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_debug("ACPI:     * SSDT\n");
+	ssdt = (acpi_header_t *)current;
+	acpi_create_ssdt_generator(ssdt, "DYNADATA");
+	current += ssdt->length;
+	acpi_add_table(rsdp, ssdt);
+
+	printk_debug("current = %lx\n", current);
+
+	printk_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_info("ACPI: done.\n");
+	return current;
+}