1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <device/device.h>
4 #include <device/pci.h>
5 #include <device/pci_ids.h>
6 #include <device/pci_ops.h>
7 #include "chip.h"
8
rce822_enable(struct device * dev)9 static void rce822_enable(struct device *dev)
10 {
11 struct drivers_ricoh_rce822_config *config = dev->chip_info;
12
13 pci_write_config8(dev, 0xca, 0x57);
14 pci_write_config8(dev, 0xcb, config->disable_mask);
15 pci_write_config8(dev, 0xca, 0x00);
16 }
17
rce822_init(struct device * dev)18 static void rce822_init(struct device *dev)
19 {
20 struct drivers_ricoh_rce822_config *config = dev->chip_info;
21
22 pci_write_config8(dev, 0xf9, 0xfc);
23 pci_write_config8(dev, 0xfb, config->sdwppol << 1);
24 pci_write_config8(dev, 0xf9, 0x00);
25 }
26
rce822_set_subsystem(struct device * dev,unsigned int vendor,unsigned int device)27 static void rce822_set_subsystem(struct device *dev, unsigned int vendor,
28 unsigned int device)
29 {
30 if (!vendor || !device) {
31 pci_write_config32(dev, 0xac,
32 pci_read_config32(dev, PCI_VENDOR_ID));
33 } else {
34 pci_write_config32(dev, 0xac,
35 ((device & 0xffff) << 16) | (vendor & 0xffff));
36 }
37 }
38
39 static struct pci_operations lops_pci = {
40 .set_subsystem = rce822_set_subsystem,
41 };
42
43 static struct device_operations rce822_ops = {
44 .read_resources = pci_dev_read_resources,
45 .set_resources = pci_dev_set_resources,
46 .enable_resources = pci_dev_enable_resources,
47 .init = rce822_init,
48 .enable = rce822_enable,
49 .ops_pci = &lops_pci,
50 };
51
52 static const unsigned short pci_device_ids[] = { 0xe822, 0xe823, 0 };
53
54 static const struct pci_driver rce822 __pci_driver = {
55 .ops = &rce822_ops,
56 .vendor = PCI_VID_RICOH,
57 .devices = pci_device_ids,
58 };
59
60 struct chip_operations drivers_ricoh_rce822_ops = {
61 .name = "RICOH RCE822",
62 };
63