| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <assert.h> |
| #include <console/console.h> |
| #include <device/pci_ops.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <cpu/cpu.h> |
| |
| #include "e7505.h" |
| |
| static void mch_domain_read_resources(struct device *dev) |
| { |
| int idx; |
| unsigned long tolmk; |
| uint64_t tom, remapbase, remaplimit; |
| struct device *mc_dev; |
| |
| pci_domain_read_resources(dev); |
| |
| mc_dev = pcidev_on_root(0, 0); |
| if (!mc_dev) |
| die("Could not find MCH device\n"); |
| |
| tolmk = pci_read_config16(mc_dev, TOLM) >> 11; |
| tolmk <<= 17; |
| |
| tom = pci_read_config8(mc_dev, DRB_ROW_7); |
| tom <<= 26; |
| |
| /* Remapped region with a 64 MiB granularity in register |
| definition. Limit is inclusive, so add one. */ |
| remapbase = pci_read_config16(mc_dev, REMAPBASE) & 0x3ff; |
| remapbase <<= 26; |
| |
| remaplimit = pci_read_config16(mc_dev, REMAPLIMIT) & 0x3ff; |
| remaplimit += 1; |
| remaplimit <<= 26; |
| |
| /* Report the memory regions */ |
| idx = 10; |
| ram_resource_kb(dev, idx++, 0, tolmk); |
| mmio_resource_kb(dev, idx++, 0xa0000 / KiB, (0xc0000 - 0xa0000) / KiB); |
| |
| uintptr_t tseg_memory_base = northbridge_get_tseg_base(); |
| size_t tseg_memory_size = northbridge_get_tseg_size(); |
| mmio_resource_kb(dev, idx++, tseg_memory_base / KiB, tseg_memory_size / KiB); |
| |
| ASSERT(tom == remapbase); |
| upper_ram_end(dev, idx++, remaplimit); |
| } |
| |
| static void mch_domain_set_resources(struct device *dev) |
| { |
| assign_resources(dev->link_list); |
| } |
| |
| struct device_operations e7505_pci_domain_ops = { |
| .read_resources = mch_domain_read_resources, |
| .set_resources = mch_domain_set_resources, |
| .scan_bus = pci_domain_scan_bus, |
| .ops_pci = &pci_dev_ops_pci, |
| }; |
| |
| |
| struct device_operations e7505_cpu_bus_ops = { |
| .read_resources = noop_read_resources, |
| .set_resources = noop_set_resources, |
| .init = mp_cpu_bus_init, |
| }; |
| |
| struct chip_operations northbridge_intel_e7505_ops = { |
| CHIP_NAME("Intel E7505 Northbridge") |
| }; |