Angel Pons | 4b42983 | 2020-04-02 23:48:50 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Martin Roth | 5474eb1 | 2018-05-26 19:22:33 -0600 | [diff] [blame] | 2 | |
Furquan Shaikh | 76cedd2 | 2020-05-02 10:24:23 -0700 | [diff] [blame] | 3 | #include <acpi/acpi.h> |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 4 | #include <console/console.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 5 | #include <device/pci_ops.h> |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 6 | #include <device/device.h> |
| 7 | #include <device/pci.h> |
| 8 | #include <cpu/cpu.h> |
Elyes HAOUAS | a1e22b8 | 2019-03-18 22:49:36 +0100 | [diff] [blame] | 9 | |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 10 | #include "e7505.h" |
Vladimir Serbinenko | c7310d9 | 2014-09-01 09:45:05 +0200 | [diff] [blame] | 11 | |
| 12 | unsigned long acpi_fill_mcfg(unsigned long current) |
| 13 | { |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 14 | /* Just a dummy */ |
| 15 | return current; |
Vladimir Serbinenko | c7310d9 | 2014-09-01 09:45:05 +0200 | [diff] [blame] | 16 | } |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 17 | |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 18 | static void mch_domain_read_resources(struct device *dev) |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 19 | { |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 20 | int idx; |
| 21 | unsigned long tomk, tolmk; |
| 22 | unsigned long remapbasek, remaplimitk; |
| 23 | const unsigned long basek_4G = 4 * (GiB / KiB); |
Elyes HAOUAS | 97e8b75 | 2018-05-09 17:39:47 +0200 | [diff] [blame] | 24 | struct device *mc_dev; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 25 | |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 26 | pci_domain_read_resources(dev); |
| 27 | |
Kyösti Mälkki | c70eed1 | 2018-05-22 02:18:00 +0300 | [diff] [blame] | 28 | mc_dev = pcidev_on_root(0, 0); |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 29 | if (!mc_dev) |
| 30 | die("Could not find MCH device\n"); |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 31 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 32 | tolmk = pci_read_config16(mc_dev, TOLM) >> 11; |
| 33 | tolmk <<= 17; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 34 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 35 | tomk = pci_read_config8(mc_dev, DRB_ROW_7); |
| 36 | tomk <<= 16; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 37 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 38 | /* Remapped region with a 64 MiB granularity in register |
| 39 | definition. Limit is inclusive, so add one. */ |
| 40 | remapbasek = pci_read_config16(mc_dev, REMAPBASE) & 0x3ff; |
| 41 | remapbasek <<= 16; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 42 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 43 | remaplimitk = pci_read_config16(mc_dev, REMAPLIMIT) & 0x3ff; |
| 44 | remaplimitk += 1; |
| 45 | remaplimitk <<= 16; |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 46 | |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 47 | /* Report the memory regions */ |
| 48 | idx = 10; |
Kyösti Mälkki | bd909ad | 2021-05-01 16:12:09 +0300 | [diff] [blame^] | 49 | ram_resource(dev, idx++, 0, tolmk); |
| 50 | mmio_resource(dev, idx++, 0xa0000 / KiB, (0xc0000 - 0xa0000) / KiB); |
Kyösti Mälkki | 717b6e3 | 2018-05-17 14:16:03 +0300 | [diff] [blame] | 51 | |
| 52 | if (tomk > basek_4G) |
| 53 | ram_resource(dev, idx++, basek_4G, tomk - basek_4G); |
| 54 | |
| 55 | if (remaplimitk > remapbasek) |
| 56 | ram_resource(dev, idx++, remapbasek, remaplimitk - remapbasek); |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | static void mch_domain_set_resources(struct device *dev) |
| 60 | { |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 61 | assign_resources(dev->link_list); |
| 62 | } |
| 63 | |
| 64 | static struct device_operations pci_domain_ops = { |
Kyösti Mälkki | 9e69c87 | 2018-06-02 15:35:27 +0300 | [diff] [blame] | 65 | .read_resources = mch_domain_read_resources, |
| 66 | .set_resources = mch_domain_set_resources, |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 67 | .scan_bus = pci_domain_scan_bus, |
Angel Pons | 1fc0edd | 2020-05-31 00:03:28 +0200 | [diff] [blame] | 68 | .ops_pci = &pci_dev_ops_pci, |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 69 | }; |
| 70 | |
Elyes HAOUAS | 97e8b75 | 2018-05-09 17:39:47 +0200 | [diff] [blame] | 71 | static void cpu_bus_init(struct device *dev) |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 72 | { |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 73 | initialize_cpus(dev->link_list); |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 74 | } |
| 75 | |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 76 | static struct device_operations cpu_bus_ops = { |
Nico Huber | 2f8ba69 | 2020-04-05 14:05:24 +0200 | [diff] [blame] | 77 | .read_resources = noop_read_resources, |
| 78 | .set_resources = noop_set_resources, |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 79 | .init = cpu_bus_init, |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 80 | }; |
| 81 | |
| 82 | static void enable_dev(struct device *dev) |
| 83 | { |
Elyes HAOUAS | 6e8b3c1 | 2016-09-02 19:22:00 +0200 | [diff] [blame] | 84 | /* Set the operations if it is a special bus type */ |
| 85 | if (dev->path.type == DEVICE_PATH_DOMAIN) { |
| 86 | dev->ops = &pci_domain_ops; |
| 87 | } |
| 88 | else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { |
| 89 | dev->ops = &cpu_bus_ops; |
| 90 | } |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 91 | } |
| 92 | |
Kyösti Mälkki | 0a0d5e8 | 2011-10-31 14:18:33 +0200 | [diff] [blame] | 93 | struct chip_operations northbridge_intel_e7505_ops = { |
| 94 | CHIP_NAME("Intel E7505 Northbridge") |
Stefan Reinauer | b15975b | 2011-10-21 12:57:59 -0700 | [diff] [blame] | 95 | .enable_dev = enable_dev, |
| 96 | }; |