northbridge/intel/fsp_*: Remove legacy SoCs

* Remove FSP Sandy/Ivybrige which are unused.
* Open Source implementation isn't final but
  good enough to replace FSP version.
* For new ports use NORTHBRIDGE_INTEL_IVYBRIDGE
  and NORTHBRIDGE_INTEL_SANDYBRIDGE

Change-Id: I7b6bc4bfdd0481c8fe5b2b3d8f8b2eb9aa3c3b9e
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-on: https://review.coreboot.org/29402
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 0 insertions, 361 deletions

diff --git a/src/northbridge/intel/fsp_sandybridge/northbridge.c b/src/northbridge/intel/fsp_sandybridge/northbridge.c
deleted file mode 100644
index c468e25752..0000000000
--- a/src/northbridge/intel/fsp_sandybridge/northbridge.c
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
- * Copyright (C) 2013 Sage Electronic Engineering, LLC.
- *
- * 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 <arch/acpi.h>
-#include <arch/io.h>
-#include <stdint.h>
-#include <delay.h>
-#include <cpu/intel/fsp_model_206ax/model_206ax.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_ids.h>
-#include <stdlib.h>
-#include <string.h>
-#include <cpu/cpu.h>
-#include "chip.h"
-#include "northbridge.h"
-#include <fsp_util.h>
-#include <cpu/intel/smm/gen1/smi.h>
-
-static int bridge_revision_id = -1;
-
-/* IGD UMA memory */
-static uint64_t uma_memory_base = 0;
-static uint64_t uma_memory_size = 0;
-
-int bridge_silicon_revision(void)
-{
-	if (bridge_revision_id < 0) {
-		uint8_t stepping = cpuid_eax(1) & 0xf;
-		uint8_t bridge_id = pci_read_config16(
-			dev_find_slot(0, PCI_DEVFN(0, 0)),
-			PCI_DEVICE_ID) & 0xf0;
-		bridge_revision_id = bridge_id | stepping;
-	}
-	return bridge_revision_id;
-}
-
-/* Reserve everything between A segment and 1MB:
- *
- * 0xa0000 - 0xbffff: legacy VGA
- * 0xc0000 - 0xcffff: VGA OPROM (needed by kernel)
- * 0xe0000 - 0xfffff: SeaBIOS, if used, otherwise DMI
- */
-static const int legacy_hole_base_k = 0xa0000 / 1024;
-static const int legacy_hole_size_k = 384;
-
-static int get_pcie_bar(u32 *base)
-{
-	struct device *dev;
-	u32 pciexbar_reg;
-
-	*base = 0;
-
-	dev = dev_find_slot(0, PCI_DEVFN(0, 0));
-	if (!dev)
-		return 0;
-
-	pciexbar_reg = pci_read_config32(dev, PCIEXBAR);
-
-	if (!(pciexbar_reg & (1 << 0)))
-		return 0;
-
-	switch ((pciexbar_reg >> 1) & 3) {
-	case 0: // 256MB
-		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
-		return 256;
-	case 1: // 128M
-		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
-		return 128;
-	case 2: // 64M
-		*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
-		return 64;
-	}
-
-	return 0;
-}
-
-static void add_fixed_resources(struct device *dev, int index)
-{
-	mmio_resource(dev, index++, uma_memory_base >> 10, uma_memory_size >> 10);
-
-	mmio_resource(dev, index++, legacy_hole_base_k, legacy_hole_size_k);
-}
-
-static void pci_domain_set_resources(struct device *dev)
-{
-	uint64_t tom, me_base, touud;
-	uint32_t tseg_base, uma_size, tolud;
-	uint16_t ggc;
-	unsigned long long tomk;
-
-	tomk = ggc = tseg_base = uma_size = tolud = tom = me_base = touud = 0;
-
-	/* Total Memory 2GB example:
-	 *
-	 *  00000000  0000MB-1992MB  1992MB  RAM     (writeback)
-	 *  7c800000  1992MB-2000MB     8MB  TSEG    (SMRR)
-	 *  7d000000  2000MB-2002MB     2MB  GFX GTT (uncached)
-	 *  7d200000  2002MB-2034MB    32MB  GFX UMA (uncached)
-	 *  7f200000   2034MB TOLUD
-	 *  7f800000   2040MB MEBASE
-	 *  7f800000  2040MB-2048MB     8MB  ME UMA  (uncached)
-	 *  80000000   2048MB TOM
-	 * 100000000  4096MB-4102MB     6MB  RAM     (writeback)
-	 *
-	 * Total Memory 4GB example:
-	 *
-	 *  00000000  0000MB-2768MB  2768MB  RAM     (writeback)
-	 *  ad000000  2768MB-2776MB     8MB  TSEG    (SMRR)
-	 *  ad800000  2776MB-2778MB     2MB  GFX GTT (uncached)
-	 *  ada00000  2778MB-2810MB    32MB  GFX UMA (uncached)
-	 *  afa00000   2810MB TOLUD
-	 *  ff800000   4088MB MEBASE
-	 *  ff800000  4088MB-4096MB     8MB  ME UMA  (uncached)
-	 * 100000000   4096MB TOM
-	 * 100000000  4096MB-5374MB  1278MB  RAM     (writeback)
-	 * 14fe00000   5368MB TOUUD
-	 */
-
-	/* Top of Upper Usable DRAM, including remap */
-	touud = pci_read_config32(dev, TOUUD+4);
-	touud <<= 32;
-	touud |= pci_read_config32(dev, TOUUD) & ~(1UL << 0);
-
-	/* Top of Lower Usable DRAM */
-	tolud = pci_read_config32(dev, TOLUD) & ~(1UL << 0);
-
-	/* Top of Memory - does not account for any UMA */
-	tom = pci_read_config32(dev, 0xa4);
-	tom <<= 32;
-	tom |= pci_read_config32(dev, 0xa0) & ~(1UL << 0);
-
-	printk(BIOS_DEBUG, "TOUUD 0x%llx TOLUD 0x%08x TOM 0x%llx\n",
-	       touud, tolud, tom);
-
-	/* ME UMA needs excluding if total memory <4GB */
-	me_base = pci_read_config32(dev, 0x74);
-	me_base <<= 32;
-	me_base |= pci_read_config32(dev, 0x70);
-
-	printk(BIOS_DEBUG, "MEBASE 0x%llx\n", me_base);
-
-	tomk = tolud >> 10;
-	if (me_base == tolud) {
-		/* ME is from MEBASE-TOM */
-		uma_size = (tom - me_base) >> 10;
-		/* Increment TOLUD to account for ME as RAM */
-		tolud += uma_size << 10;
-		/* UMA starts at old TOLUD */
-		uma_memory_base = tomk * 1024ULL;
-		uma_memory_size = uma_size * 1024ULL;
-		printk(BIOS_DEBUG, "ME UMA base 0x%llx size %uM\n",
-		       me_base, uma_size >> 10);
-	}
-
-	/* Graphics memory comes next */
-	ggc = pci_read_config16(dev, GGC);
-	if (!(ggc & 2)) {
-		printk(BIOS_DEBUG, "IGD decoded, subtracting ");
-
-		/* Graphics memory */
-		uma_size = ((ggc >> 3) & 0x1f) * 32 * 1024ULL;
-		printk(BIOS_DEBUG, "%uM UMA", uma_size >> 10);
-		tomk -= uma_size;
-		uma_memory_base = tomk * 1024ULL;
-		uma_memory_size += uma_size * 1024ULL;
-
-		/* GTT Graphics Stolen Memory Size (GGMS) */
-		uma_size = ((ggc >> 8) & 0x3) * 1024ULL;
-		tomk -= uma_size;
-		uma_memory_base = tomk * 1024ULL;
-		uma_memory_size += uma_size * 1024ULL;
-		printk(BIOS_DEBUG, " and %uM GTT\n", uma_size >> 10);
-	}
-
-	/* Calculate TSEG size from its base which must be below GTT */
-	uma_memory_base = tomk * 1024ULL;
-	tseg_base = pci_read_config32(dev, 0xb8) & ~(1UL << 0);
-	uma_size = (uma_memory_base - tseg_base) >> 10;
-	tomk -= uma_size;
-	uma_memory_base = tomk * 1024ULL;
-	uma_memory_size += uma_size * 1024ULL;
-	printk(BIOS_DEBUG, "TSEG base 0x%08x size %uM\n",
-	       tseg_base, uma_size >> 10);
-
-	printk(BIOS_INFO, "Available memory below 4GB: %lluM\n", tomk >> 10);
-
-	/* Report the memory regions */
-	ram_resource(dev, 3, 0, legacy_hole_base_k);
-	ram_resource(dev, 4, legacy_hole_base_k + legacy_hole_size_k,
-	     (tomk - (legacy_hole_base_k + legacy_hole_size_k)));
-
-	/*
-	 * If >= 4GB installed then memory from TOLUD to 4GB
-	 * is remapped above TOM, TOUUD will account for both
-	 */
-	touud >>= 10; /* Convert to KB */
-	if (touud > 4096 * 1024) {
-		ram_resource(dev, 5, 4096 * 1024, touud - (4096 * 1024));
-		printk(BIOS_INFO, "Available memory above 4GB: %lluM\n",
-		       (touud >> 10) - 4096);
-	}
-
-	add_fixed_resources(dev, 6);
-
-	assign_resources(dev->link_list);
-}
-
-	/* TODO We could determine how many PCIe busses we need in
-	 * the bar. For now that number is hardcoded to a max of 64.
-	 * See e7525/northbridge.c for an example.
-	 */
-static struct device_operations pci_domain_ops = {
-	.read_resources   = pci_domain_read_resources,
-	.set_resources    = pci_domain_set_resources,
-	.enable_resources = NULL,
-	.init             = NULL,
-	.scan_bus         = pci_domain_scan_bus,
-};
-
-static void mc_read_resources(struct device *dev)
-{
-	u32 pcie_config_base;
-	int buses;
-
-	pci_dev_read_resources(dev);
-
-	buses = get_pcie_bar(&pcie_config_base);
-	if (buses) {
-		struct resource *resource = new_resource(dev, PCIEXBAR);
-		mmconf_resource_init(resource, pcie_config_base, buses);
-	}
-}
-
-static void intel_set_subsystem(struct device *dev, unsigned int vendor,
-				unsigned int device)
-{
-	if (!vendor || !device) {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				pci_read_config32(dev, PCI_VENDOR_ID));
-	} else {
-		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
-				((device & 0xffff) << 16) | (vendor & 0xffff));
-	}
-}
-
-static void northbridge_init(struct device *dev)
-{
-	u8 bios_reset_cpl;
-
-	/*
-	 * Set bit 0 of BIOS_RESET_CPL to indicate to the CPU
-	 * that BIOS has initialized memory and power management
-	 */
-	bios_reset_cpl = MCHBAR8(BIOS_RESET_CPL);
-	bios_reset_cpl |= 1;
-	MCHBAR8(BIOS_RESET_CPL) = bios_reset_cpl;
-	printk(BIOS_DEBUG, "Set BIOS_RESET_CPL\n");
-}
-
-static u32 northbridge_get_base_reg(struct device *dev, int reg)
-{
-	u32 value;
-
-	value = pci_read_config32(dev, reg);
-	/* Base registers are at 1MiB granularity. */
-	value &= ~((1 << 20) - 1);
-	return value;
-}
-
-u32 northbridge_get_tseg_base(void)
-{
-	struct device *const dev = dev_find_slot(0, PCI_DEVFN(0, 0));
-
-	return northbridge_get_base_reg(dev, TSEG);
-}
-
-void northbridge_write_smram(u8 smram)
-{
-	pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM, smram);
-}
-
-u32 northbridge_get_tseg_size(void)
-{
-	return CONFIG_SMM_TSEG_SIZE;
-}
-
-static struct pci_operations intel_pci_ops = {
-	.set_subsystem    = intel_set_subsystem,
-};
-
-static struct device_operations mc_ops = {
-	.read_resources   = mc_read_resources,
-	.set_resources    = pci_dev_set_resources,
-	.enable_resources = pci_dev_enable_resources,
-	.init             = northbridge_init,
-	.scan_bus         = 0,
-	.ops_pci          = &intel_pci_ops,
-	.acpi_fill_ssdt_generator = generate_cpu_entries,
-};
-
-static const struct pci_driver mc_driver_0100 __pci_driver = {
-	.ops    = &mc_ops,
-	.vendor = PCI_VENDOR_ID_INTEL,
-	.device = 0x0100,
-};
-
-static const struct pci_driver mc_driver __pci_driver = {
-	.ops    = &mc_ops,
-	.vendor = PCI_VENDOR_ID_INTEL,
-	.device = 0x0104, /* Sandy bridge */
-};
-
-static const struct pci_driver mc_driver_1 __pci_driver = {
-	.ops    = &mc_ops,
-	.vendor = PCI_VENDOR_ID_INTEL,
-	.device = 0x0154, /* Ivy bridge */
-};
-
-static void cpu_bus_init(struct device *dev)
-{
-	initialize_cpus(dev->link_list);
-}
-
-static struct device_operations cpu_bus_ops = {
-	.read_resources   = DEVICE_NOOP,
-	.set_resources    = DEVICE_NOOP,
-	.enable_resources = DEVICE_NOOP,
-	.init             = cpu_bus_init,
-	.scan_bus         = 0,
-};
-
-static void enable_dev(struct device *dev)
-{
-	/* Set the operations if it is a special bus type */
-	if (dev->path.type == DEVICE_PATH_DOMAIN) {
-		dev->ops = &pci_domain_ops;
-	} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
-		dev->ops = &cpu_bus_ops;
-	}
-}
-
-struct chip_operations northbridge_intel_fsp_sandybridge_ops = {
-	CHIP_NAME("Intel i7 (SandyBridge/IvyBridge) integrated Northbridge")
-	.enable_dev = enable_dev,
-};