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Diffstat (limited to 'src/northbridge/intel/i3100/northbridge.c')
| -rw-r--r-- | src/northbridge/intel/i3100/northbridge.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/src/northbridge/intel/i3100/northbridge.c b/src/northbridge/intel/i3100/northbridge.c deleted file mode 100644 index f05eea0464..0000000000 --- a/src/northbridge/intel/i3100/northbridge.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2008 Arastra, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 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. - * - */ - -/* This code is based on src/northbridge/intel/e7520/northbridge.c */ - -#include <console/console.h> -#include <arch/io.h> -#include <stdint.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <stdlib.h> -#include <string.h> -#include <cbmem.h> -#include <cpu/cpu.h> -#include "chip.h" -#include "i3100.h" -#include <arch/acpi.h> - - -static void pci_domain_set_resources(device_t dev) -{ - device_t mc_dev; - u32 pci_tolm; - - pci_tolm = find_pci_tolm(dev->link_list); - -#if 1 - printk(BIOS_DEBUG, "PCI mem marker = %x\n", pci_tolm); -#endif - /* FIXME Me temporary hack */ - if (pci_tolm > 0xe0000000) - pci_tolm = 0xe0000000; - /* Ensure pci_tolm is 128M aligned */ - pci_tolm &= 0xf8000000; - mc_dev = dev->link_list->children; - if (mc_dev) { - /* Figure out which areas are/should be occupied by RAM. - * This is all computed in kilobytes and converted to/from - * the memory controller right at the edges. - * Having different variables in different units is - * too confusing to get right. Kilobytes are good up to - * 4 Terabytes of RAM... - */ - u16 tolm_r, remapbase_r, remaplimit_r, remapoffset_r; - u32 tomk, tolmk; - u32 remapbasek, remaplimitk, remapoffsetk; - - /* Get the Top of Memory address, units are 128M */ - tomk = ((u32)pci_read_config16(mc_dev, TOM)) << 17; - /* Compute the Top of Low Memory */ - tolmk = (pci_tolm & 0xf8000000) >> 10; - - if (tolmk >= tomk) { - /* The PCI hole does not overlap memory - * we won't use the remap window. - */ - tolmk = tomk; - remapbasek = 0x3ff << 16; - remaplimitk = 0 << 16; - remapoffsetk = 0 << 16; - } - else { - /* The PCI memory hole overlaps memory - * setup the remap window. - */ - /* Find the bottom of the remap window - * is it above 4G? - */ - remapbasek = 4*1024*1024; - if (tomk > remapbasek) { - remapbasek = tomk; - } - /* Find the limit of the remap window */ - remaplimitk = (remapbasek + (4*1024*1024 - tolmk) - (1 << 16)); - /* Find the offset of the remap window from tolm */ - remapoffsetk = remapbasek - tolmk; - } - /* Write the RAM configuration registers, - * preserving the reserved bits. - */ - tolm_r = pci_read_config16(mc_dev, 0xc4); - tolm_r = ((tolmk >> 17) << 11) | (tolm_r & 0x7ff); - pci_write_config16(mc_dev, 0xc4, tolm_r); - - remapbase_r = pci_read_config16(mc_dev, 0xc6); - remapbase_r = (remapbasek >> 16) | (remapbase_r & 0xfc00); - pci_write_config16(mc_dev, 0xc6, remapbase_r); - - remaplimit_r = pci_read_config16(mc_dev, 0xc8); - remaplimit_r = (remaplimitk >> 16) | (remaplimit_r & 0xfc00); - pci_write_config16(mc_dev, 0xc8, remaplimit_r); - - remapoffset_r = pci_read_config16(mc_dev, 0xca); - remapoffset_r = (remapoffsetk >> 16) | (remapoffset_r & 0xfc00); - pci_write_config16(mc_dev, 0xca, remapoffset_r); - - /* Report the memory regions */ - ram_resource(dev, 3, 0, 640); - ram_resource(dev, 4, 768, (tolmk - 768)); - if (tomk > 4*1024*1024) { - ram_resource(dev, 5, 4096*1024, tomk - 4*1024*1024); - } - if (remaplimitk >= remapbasek) { - ram_resource(dev, 6, remapbasek, - (remaplimitk + 64*1024) - remapbasek); - } - - set_late_cbmem_top(tolmk * 1024); - } - assign_resources(dev->link_list); -} - -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, - .ops_pci_bus = pci_bus_default_ops, -}; - -static void mc_read_resources(device_t dev) -{ - pci_dev_read_resources(dev); - - mmconf_resource(dev, EXPECBASE); -} - -static void intel_set_subsystem(device_t dev, unsigned vendor, unsigned device) -{ - pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID, - ((device & 0xffff) << 16) | (vendor & 0xffff)); -} - -#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) - -unsigned long acpi_fill_mcfg(unsigned long current) -{ - device_t dev; - u64 mmcfg; - - dev = dev_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_3100_MC, 0); // 0:0x13.0 - if (!dev) - return current; - - // MMCFG not supported or not enabled. - mmcfg = ((u64) pci_read_config16(dev, 0xce)) << 16; - if (!mmcfg) - return current; - - current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current, - mmcfg, 0x0, 0x0, 0xff); - - return current; -} - -#endif - -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 = 0, - .scan_bus = 0, - .ops_pci = &intel_pci_ops, -}; - -static const struct pci_driver mc_driver __pci_driver = { - .ops = &mc_ops, - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_3100_MC, -}; - -static void cpu_bus_init(device_t 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(device_t 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_i3100_ops = { - CHIP_NAME("Intel 3100 Northbridge") - .enable_dev = enable_dev, -}; |