| 1 | /* |
| 2 | * RDC321x southbrige driver |
| 3 | * |
| 4 | * Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | * |
| 20 | */ |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/platform_device.h> |
| 25 | #include <linux/pci.h> |
| 26 | |
| 27 | #include <asm/rdc321x_defs.h> |
| 28 | |
| 29 | static struct pci_dev *rdc321x_sb_pdev; |
| 30 | |
| 31 | /* |
| 32 | * Unlocked PCI configuration space accessors |
| 33 | */ |
| 34 | int rdc321x_pci_read(int reg, u32 *val) |
| 35 | { |
| 36 | int err; |
| 37 | |
| 38 | err = pci_read_config_dword(rdc321x_sb_pdev, reg, val); |
| 39 | if (err) |
| 40 | return err; |
| 41 | |
| 42 | return err; |
| 43 | } |
| 44 | EXPORT_SYMBOL(rdc321x_pci_read); |
| 45 | |
| 46 | int rdc321x_pci_write(int reg, u32 val) |
| 47 | { |
| 48 | int err; |
| 49 | |
| 50 | err = pci_write_config_dword(rdc321x_sb_pdev, reg, val); |
| 51 | if (err) |
| 52 | return err; |
| 53 | |
| 54 | return err; |
| 55 | } |
| 56 | EXPORT_SYMBOL(rdc321x_pci_write); |
| 57 | |
| 58 | static struct platform_device rdc321x_wdt_device = { |
| 59 | .name = "rdc321x-wdt" |
| 60 | }; |
| 61 | |
| 62 | static struct platform_device rdc321x_gpio_device = { |
| 63 | .name = "rdc321x-gpio" |
| 64 | }; |
| 65 | |
| 66 | static int __devinit rdc321x_sb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 67 | { |
| 68 | int err; |
| 69 | |
| 70 | err = pci_enable_device(pdev); |
| 71 | if (err) { |
| 72 | printk(KERN_ERR "failed to enable device\n"); |
| 73 | return err; |
| 74 | } |
| 75 | |
| 76 | rdc321x_sb_pdev = pdev; |
| 77 | |
| 78 | err = platform_device_register(&rdc321x_wdt_device); |
| 79 | if (err) { |
| 80 | dev_err(&pdev->dev, "failed to register watchdog\n"); |
| 81 | return err; |
| 82 | } |
| 83 | |
| 84 | panic_on_unrecovered_nmi = 1; |
| 85 | |
| 86 | err = platform_device_register(&rdc321x_gpio_device); |
| 87 | if (err) { |
| 88 | dev_err(&pdev->dev, "failed to register gpiochip\n"); |
| 89 | return err; |
| 90 | } |
| 91 | dev_info(&rdc321x_sb_pdev->dev, "RDC321x southhridge registered\n"); |
| 92 | |
| 93 | return err; |
| 94 | } |
| 95 | |
| 96 | static struct pci_device_id rdc321x_sb_table[] = { |
| 97 | { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) }, |
| 98 | {} |
| 99 | }; |
| 100 | |
| 101 | static struct pci_driver rdc321x_sb_driver = { |
| 102 | .name = "RDC3210 Southbridge", |
| 103 | .id_table = rdc321x_sb_table, |
| 104 | .probe = rdc321x_sb_probe |
| 105 | }; |
| 106 | |
| 107 | static int __init rdc321x_sb_init(void) |
| 108 | { |
| 109 | return pci_register_driver(&rdc321x_sb_driver); |
| 110 | } |
| 111 | |
| 112 | device_initcall(rdc321x_sb_init); |
| 113 | |
