Angel Pons | 8a3453f | 2020-04-02 23:48:19 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 2 | |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 3 | #include <device/device.h> |
| 4 | #include <device/pci.h> |
| 5 | #include <device/pci_ids.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 6 | #include <device/pci_ops.h> |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 7 | #include "chip.h" |
| 8 | |
| 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 | |
| 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 | |
Elyes HAOUAS | 88030b7 | 2018-09-20 17:26:10 +0200 | [diff] [blame] | 27 | static void rce822_set_subsystem(struct device *dev, unsigned int vendor, |
| 28 | unsigned int device) |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 29 | { |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 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 = { |
Elyes HAOUAS | 2aa3b16 | 2018-11-27 17:02:10 +0100 | [diff] [blame] | 40 | .set_subsystem = rce822_set_subsystem, |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 41 | }; |
| 42 | |
Vladimir Serbinenko | 633e827 | 2015-05-15 11:10:08 +0200 | [diff] [blame] | 43 | static struct device_operations rce822_ops = { |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 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, |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 49 | .ops_pci = &lops_pci, |
| 50 | }; |
| 51 | |
| 52 | static const unsigned short pci_device_ids[] = { 0xe822, 0xe823, 0 }; |
| 53 | |
Vladimir Serbinenko | 633e827 | 2015-05-15 11:10:08 +0200 | [diff] [blame] | 54 | static const struct pci_driver rce822 __pci_driver = { |
| 55 | .ops = &rce822_ops, |
Vladimir Serbinenko | 795f96e | 2014-10-27 02:45:22 +0100 | [diff] [blame] | 56 | .vendor = PCI_VENDOR_ID_RICOH, |
| 57 | .devices = pci_device_ids, |
| 58 | }; |
Kyösti Mälkki | 08c76e1 | 2019-08-25 13:05:46 +0300 | [diff] [blame] | 59 | |
| 60 | struct chip_operations drivers_ricoh_rce822_ops = { |
| 61 | CHIP_NAME("RICOH RCE822") |
| 62 | }; |