Angel Pons | 182dbde | 2020-04-02 23:49:05 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 2 | |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 3 | #include <device/device.h> |
| 4 | #include <device/pci.h> |
| 5 | #include <device/pci_ids.h> |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 6 | #include <device/smbus.h> |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 7 | #include <arch/ioapic.h> |
Elyes HAOUAS | 400f9ca | 2019-06-23 07:01:22 +0200 | [diff] [blame] | 8 | |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 9 | #include "hudson.h" |
| 10 | #include "smbus.c" |
| 11 | |
| 12 | #define NMI_OFF 0 |
| 13 | |
| 14 | #define MAINBOARD_POWER_OFF 0 |
| 15 | #define MAINBOARD_POWER_ON 1 |
| 16 | |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 17 | /* |
| 18 | * HUDSON enables all USB controllers by default in SMBUS Control. |
| 19 | * HUDSON enables SATA by default in SMBUS Control. |
| 20 | */ |
| 21 | |
Kyösti Mälkki | e742b68 | 2023-04-10 17:03:32 +0300 | [diff] [blame] | 22 | void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags) |
| 23 | { |
| 24 | *gsi = ACPI_SCI_IRQ; |
| 25 | *irq = ACPI_SCI_IRQ; |
| 26 | *flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW; |
| 27 | } |
| 28 | |
Elyes HAOUAS | d9ef546 | 2018-05-19 17:08:23 +0200 | [diff] [blame] | 29 | static void sm_init(struct device *dev) |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 30 | { |
Kyösti Mälkki | d1534e4 | 2023-04-09 10:01:58 +0300 | [diff] [blame] | 31 | register_new_ioapic_gsi0(VIO_APIC_VADDR); |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 32 | } |
| 33 | |
Elyes HAOUAS | d9ef546 | 2018-05-19 17:08:23 +0200 | [diff] [blame] | 34 | static int lsmbus_recv_byte(struct device *dev) |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 35 | { |
| 36 | u32 device; |
| 37 | struct resource *res; |
| 38 | struct bus *pbus; |
| 39 | |
| 40 | device = dev->path.i2c.device; |
| 41 | pbus = get_pbus_smbus(dev); |
| 42 | |
| 43 | res = find_resource(pbus->dev, 0x90); |
| 44 | |
| 45 | return do_smbus_recv_byte(res->base, device); |
| 46 | } |
| 47 | |
Elyes HAOUAS | d9ef546 | 2018-05-19 17:08:23 +0200 | [diff] [blame] | 48 | static int lsmbus_send_byte(struct device *dev, u8 val) |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 49 | { |
| 50 | u32 device; |
| 51 | struct resource *res; |
| 52 | struct bus *pbus; |
| 53 | |
| 54 | device = dev->path.i2c.device; |
| 55 | pbus = get_pbus_smbus(dev); |
| 56 | |
| 57 | res = find_resource(pbus->dev, 0x90); |
| 58 | |
| 59 | return do_smbus_send_byte(res->base, device, val); |
| 60 | } |
| 61 | |
Elyes HAOUAS | d9ef546 | 2018-05-19 17:08:23 +0200 | [diff] [blame] | 62 | static int lsmbus_read_byte(struct device *dev, u8 address) |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 63 | { |
| 64 | u32 device; |
| 65 | struct resource *res; |
| 66 | struct bus *pbus; |
| 67 | |
| 68 | device = dev->path.i2c.device; |
| 69 | pbus = get_pbus_smbus(dev); |
| 70 | |
| 71 | res = find_resource(pbus->dev, 0x90); |
| 72 | |
| 73 | return do_smbus_read_byte(res->base, device, address); |
| 74 | } |
| 75 | |
Elyes HAOUAS | d9ef546 | 2018-05-19 17:08:23 +0200 | [diff] [blame] | 76 | static int lsmbus_write_byte(struct device *dev, u8 address, u8 val) |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 77 | { |
| 78 | u32 device; |
| 79 | struct resource *res; |
| 80 | struct bus *pbus; |
| 81 | |
| 82 | device = dev->path.i2c.device; |
| 83 | pbus = get_pbus_smbus(dev); |
| 84 | |
| 85 | res = find_resource(pbus->dev, 0x90); |
| 86 | |
| 87 | return do_smbus_write_byte(res->base, device, address, val); |
| 88 | } |
| 89 | static struct smbus_bus_operations lops_smbus_bus = { |
| 90 | .recv_byte = lsmbus_recv_byte, |
| 91 | .send_byte = lsmbus_send_byte, |
| 92 | .read_byte = lsmbus_read_byte, |
| 93 | .write_byte = lsmbus_write_byte, |
| 94 | }; |
| 95 | |
Elyes HAOUAS | d9ef546 | 2018-05-19 17:08:23 +0200 | [diff] [blame] | 96 | static void hudson_sm_read_resources(struct device *dev) |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 97 | { |
| 98 | } |
| 99 | |
| 100 | static void hudson_sm_set_resources(struct device *dev) |
| 101 | { |
| 102 | } |
| 103 | |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 104 | static struct device_operations smbus_ops = { |
| 105 | .read_resources = hudson_sm_read_resources, |
| 106 | .set_resources = hudson_sm_set_resources, |
| 107 | .enable_resources = pci_dev_enable_resources, |
| 108 | .init = sm_init, |
Kyösti Mälkki | d0e212c | 2015-02-26 20:47:47 +0200 | [diff] [blame] | 109 | .scan_bus = scan_smbus, |
Angel Pons | 1fc0edd | 2020-05-31 00:03:28 +0200 | [diff] [blame] | 110 | .ops_pci = &pci_dev_ops_pci, |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 111 | .ops_smbus_bus = &lops_smbus_bus, |
| 112 | }; |
| 113 | static const struct pci_driver smbus_driver __pci_driver = { |
| 114 | .ops = &smbus_ops, |
Felix Singer | 43b7f41 | 2022-03-07 04:34:52 +0100 | [diff] [blame] | 115 | .vendor = PCI_VID_AMD, |
Felix Held | 43cf27d | 2021-10-27 18:31:16 +0200 | [diff] [blame] | 116 | /* PCI device ID is used on all discrete FCHs and Family 16h Models 00h-3Fh */ |
Felix Singer | 43b7f41 | 2022-03-07 04:34:52 +0100 | [diff] [blame] | 117 | .device = PCI_DID_AMD_SB900_SM, |
Kyösti Mälkki | e8b4da2 | 2014-10-21 18:22:32 +0300 | [diff] [blame] | 118 | }; |