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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <device/mmio.h>
4 #include <device/pci_ops.h>
5 #include <device/device.h>
6 #include <device/pci.h>
7 #include <device/pci_ids.h>
8 
9 #include "i82801jx.h"
10 
thermal_init(struct device * dev)11 static void thermal_init(struct device *dev)
12 {
13 	u8 reg8;
14 
15 	pci_write_config32(dev, 0x10, (uintptr_t)DEFAULT_TBAR);
16 	pci_or_config32(dev, 0x04, 1 << 1);
17 
18 	write32(DEFAULT_TBAR + 0x04, 0); /* Clear thermal trip points. */
19 	write32(DEFAULT_TBAR + 0x44, 0);
20 
21 	write8(DEFAULT_TBAR + 0x01, 0xba); /* Enable sensor 0 + 1. */
22 	write8(DEFAULT_TBAR + 0x41, 0xba);
23 
24 	reg8 = read8(DEFAULT_TBAR + 0x08); /* Lock thermal registers. */
25 	write8(DEFAULT_TBAR + 0x08, reg8 | (1 << 7));
26 	reg8 = read8(DEFAULT_TBAR + 0x48);
27 	write8(DEFAULT_TBAR + 0x48, reg8 | (1 << 7));
28 
29 	pci_and_config32(dev, 0x04, ~(1 << 1));
30 	pci_write_config32(dev, 0x10, 0);
31 }
32 
33 static struct device_operations device_ops = {
34 	.read_resources		= pci_dev_read_resources,
35 	.set_resources		= pci_dev_set_resources,
36 	.enable_resources	= pci_dev_enable_resources,
37 	.init			= thermal_init,
38 	.ops_pci		= &pci_dev_ops_pci,
39 };
40 
41 static const unsigned short pci_device_ids[] = {
42 	0x3a32,
43 	0x3a62,
44 	0
45 };
46 
47 static const struct pci_driver ich10_thermal __pci_driver = {
48 	.ops	= &device_ops,
49 	.vendor	= PCI_VID_INTEL,
50 	.devices	= pci_device_ids,
51 };
52