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a0438292e5
This also fixes the watchdog logic and abstracts the access to the RDC321x southbridge PCI configuration register space. Based on a patch by Bernhard Loos. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19972 3c298f89-4303-0410-b956-a3cf2f4a3e73
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/*
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* RDC321x southbrige driver
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*
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* Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/pci.h>
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#include <asm/rdc321x_defs.h>
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static struct pci_dev *rdc321x_sb_pdev;
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/*
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* Unlocked PCI configuration space accessors
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*/
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int rdc321x_pci_read(int reg, u32 *val)
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{
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int err;
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err = pci_read_config_dword(rdc321x_sb_pdev, reg, val);
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if (err)
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return err;
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return err;
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}
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EXPORT_SYMBOL(rdc321x_pci_read);
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int rdc321x_pci_write(int reg, u32 val)
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{
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int err;
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err = pci_write_config_dword(rdc321x_sb_pdev, reg, val);
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if (err)
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return err;
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return err;
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}
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EXPORT_SYMBOL(rdc321x_pci_write);
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static struct platform_device rdc321x_wdt_device = {
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.name = "rdc321x-wdt"
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};
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static struct platform_device rdc321x_gpio_device = {
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.name = "rdc321x-gpio"
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};
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static int __devinit rdc321x_sb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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int err;
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err = pci_enable_device(pdev);
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if (err) {
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printk(KERN_ERR "failed to enable device\n");
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return err;
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}
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rdc321x_sb_pdev = pdev;
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err = platform_device_register(&rdc321x_wdt_device);
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if (err) {
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dev_err(&pdev->dev, "failed to register watchdog\n");
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return err;
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}
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err = platform_device_register(&rdc321x_gpio_device);
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if (err) {
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dev_err(&pdev->dev, "failed to register gpiochip\n");
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return err;
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}
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dev_info(&rdc321x_sb_pdev->dev, "RDC321x southhridge registered\n");
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return err;
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}
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static struct pci_device_id rdc321x_sb_table[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },
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{}
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};
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static struct pci_driver rdc321x_sb_driver = {
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.name = "RDC3210 Southbridge",
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.id_table = rdc321x_sb_table,
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.probe = rdc321x_sb_probe
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};
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static int __init rdc321x_sb_init(void)
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{
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return pci_register_driver(&rdc321x_sb_driver);
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}
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device_initcall(rdc321x_sb_init);
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