Angel Pons | 4b42983 | 2020-04-02 23:48:50 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* This file is part of the coreboot project. */ |
Martin Roth | 5474eb1 | 2018-05-26 19:22:33 -0600 | [diff] [blame] | 3 | |
Elyes HAOUAS | a1e22b8 | 2019-03-18 22:49:36 +0100 | [diff] [blame] | 4 | #include <arch/acpi.h> |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 5 | #include <console/console.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 6 | #include <device/pci_ops.h> |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 7 | #include <stdint.h> |
| 8 | #include <device/device.h> |
| 9 | #include <device/pci.h> |
| 10 | #include <cpu/cpu.h> |
Elyes HAOUAS | a1e22b8 | 2019-03-18 22:49:36 +0100 | [diff] [blame] | 11 | |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 12 | #include "e7505.h" |
Vladimir Serbinenko | c7310d9 | 2014-09-01 09:45:05 +0200 | [diff] [blame] | 13 | |
| 14 | unsigned long acpi_fill_mcfg(unsigned long current) |
| 15 | { |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 16 | /* Just a dummy */ |
| 17 | return current; |
Vladimir Serbinenko | c7310d9 | 2014-09-01 09:45:05 +0200 | [diff] [blame] | 18 | } |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 19 | |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 20 | static void mch_domain_read_resources(struct device *dev) |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 21 | { |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 22 | int idx; |
| 23 | unsigned long tomk, tolmk; |
| 24 | unsigned long remapbasek, remaplimitk; |
| 25 | const unsigned long basek_4G = 4 * (GiB / KiB); |
Elyes HAOUAS | 97e8b75 | 2018-05-09 17:39:47 +0200 | [diff] [blame] | 26 | struct device *mc_dev; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 27 | |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 28 | pci_domain_read_resources(dev); |
| 29 | |
Kyösti Mälkki | c70eed1 | 2018-05-22 02:18:00 +0300 | [diff] [blame] | 30 | mc_dev = pcidev_on_root(0, 0); |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 31 | if (!mc_dev) |
| 32 | die("Could not find MCH device\n"); |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 33 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 34 | tolmk = pci_read_config16(mc_dev, TOLM) >> 11; |
| 35 | tolmk <<= 17; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 36 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 37 | tomk = pci_read_config8(mc_dev, DRB_ROW_7); |
| 38 | tomk <<= 16; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 39 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 40 | /* Remapped region with a 64 MiB granularity in register |
| 41 | definition. Limit is inclusive, so add one. */ |
| 42 | remapbasek = pci_read_config16(mc_dev, REMAPBASE) & 0x3ff; |
| 43 | remapbasek <<= 16; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 44 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 45 | remaplimitk = pci_read_config16(mc_dev, REMAPLIMIT) & 0x3ff; |
| 46 | remaplimitk += 1; |
| 47 | remaplimitk <<= 16; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 48 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 49 | /* Report the memory regions */ |
| 50 | idx = 10; |
| 51 | ram_resource(dev, idx++, 0, 640); |
| 52 | ram_resource(dev, idx++, 768, tolmk - 768); |
| 53 | |
| 54 | if (tomk > basek_4G) |
| 55 | ram_resource(dev, idx++, basek_4G, tomk - basek_4G); |
| 56 | |
| 57 | if (remaplimitk > remapbasek) |
| 58 | ram_resource(dev, idx++, remapbasek, remaplimitk - remapbasek); |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 59 | } |
| 60 | |
| 61 | static void mch_domain_set_resources(struct device *dev) |
| 62 | { |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 63 | assign_resources(dev->link_list); |
| 64 | } |
| 65 | |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 66 | static struct pci_operations intel_pci_ops = { |
Subrata Banik | 4a0f071 | 2019-03-20 14:29:47 +0530 | [diff] [blame] | 67 | .set_subsystem = pci_dev_set_subsystem, |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 68 | }; |
| 69 | |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 70 | static struct device_operations pci_domain_ops = { |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 71 | .read_resources = mch_domain_read_resources, |
| 72 | .set_resources = mch_domain_set_resources, |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 73 | .scan_bus = pci_domain_scan_bus, |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 74 | .ops_pci = &intel_pci_ops, |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 75 | }; |
| 76 | |
Elyes HAOUAS | 97e8b75 | 2018-05-09 17:39:47 +0200 | [diff] [blame] | 77 | static void cpu_bus_init(struct device *dev) |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 78 | { |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 79 | initialize_cpus(dev->link_list); |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 80 | } |
| 81 | |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 82 | static struct device_operations cpu_bus_ops = { |
Nico Huber | 2f8ba69 | 2020-04-05 14:05:24 +0200 | [diff] [blame^] | 83 | .read_resources = noop_read_resources, |
| 84 | .set_resources = noop_set_resources, |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 85 | .init = cpu_bus_init, |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 86 | }; |
| 87 | |
| 88 | static void enable_dev(struct device *dev) |
| 89 | { |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 90 | /* Set the operations if it is a special bus type */ |
| 91 | if (dev->path.type == DEVICE_PATH_DOMAIN) { |
| 92 | dev->ops = &pci_domain_ops; |
| 93 | } |
| 94 | else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { |
| 95 | dev->ops = &cpu_bus_ops; |
| 96 | } |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 97 | } |
| 98 | |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 99 | struct chip_operations northbridge_intel_e7505_ops = { |
| 100 | CHIP_NAME("Intel E7505 Northbridge") |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 101 | .enable_dev = enable_dev, |
| 102 | }; |