kernel: update stmmac ethernet driver from latest linux-sh4-2.6.32.y - _stm24_0217
This commit is contained in:
Jaroslav Kysela
219
kernel/drivers/net/stmmac/stmmac_pci.c
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219
kernel/drivers/net/stmmac/stmmac_pci.c
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/*******************************************************************************
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This contains the functions to handle the pci driver.
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Copyright (C) 2011-2012 Vayavya Labs Pvt Ltd
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Author: Rayagond Kokatanur <rayagond@vayavyalabs.com>
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Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
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*******************************************************************************/
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#include <linux/pci.h>
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#include "stmmac.h"
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struct plat_stmmacenet_data plat_dat;
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struct stmmac_mdio_bus_data mdio_data;
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static void stmmac_default_data(void)
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{
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memset(&plat_dat, 0, sizeof(struct plat_stmmacenet_data));
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plat_dat.bus_id = 1;
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plat_dat.phy_addr = 0;
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plat_dat.interface = PHY_INTERFACE_MODE_GMII;
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plat_dat.pbl = 32;
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plat_dat.clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
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plat_dat.has_gmac = 1;
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plat_dat.force_sf_dma_mode = 1;
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mdio_data.bus_id = 1;
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mdio_data.phy_reset = NULL;
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mdio_data.phy_mask = 0;
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plat_dat.mdio_bus_data = &mdio_data;
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}
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/**
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* stmmac_pci_probe
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*
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* @pdev: pci device pointer
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* @id: pointer to table of device id/id's.
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*
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* Description: This probing function gets called for all PCI devices which
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* match the ID table and are not "owned" by other driver yet. This function
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* gets passed a "struct pci_dev *" for each device whose entry in the ID table
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* matches the device. The probe functions returns zero when the driver choose
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* to take "ownership" of the device or an error code(-ve no) otherwise.
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*/
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static int __devinit stmmac_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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int ret = 0;
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void __iomem *addr = NULL;
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struct stmmac_priv *priv = NULL;
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int i;
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/* Enable pci device */
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ret = pci_enable_device(pdev);
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if (ret) {
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pr_err("%s : ERROR: failed to enable %s device\n", __func__,
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pci_name(pdev));
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return ret;
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}
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if (pci_request_regions(pdev, STMMAC_RESOURCE_NAME)) {
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pr_err("%s: ERROR: failed to get PCI region\n", __func__);
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ret = -ENODEV;
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goto err_out_req_reg_failed;
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}
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/* Get the base address of device */
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for (i = 0; i <= 5; i++) {
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if (pci_resource_len(pdev, i) == 0)
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continue;
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addr = pci_iomap(pdev, i, 0);
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if (addr == NULL) {
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pr_err("%s: ERROR: cannot map regiser memory, aborting",
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__func__);
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ret = -EIO;
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goto err_out_map_failed;
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}
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break;
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}
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pci_set_master(pdev);
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stmmac_default_data();
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priv = stmmac_dvr_probe(&(pdev->dev), &plat_dat, addr);
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if (!priv) {
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pr_err("%s: main driver probe failed", __func__);
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goto err_out;
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}
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priv->dev->irq = pdev->irq;
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priv->wol_irq = pdev->irq;
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pci_set_drvdata(pdev, priv->dev);
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pr_debug("STMMAC platform driver registration completed");
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return 0;
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err_out:
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pci_clear_master(pdev);
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err_out_map_failed:
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pci_release_regions(pdev);
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err_out_req_reg_failed:
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pci_disable_device(pdev);
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return ret;
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}
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/**
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* stmmac_dvr_remove
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*
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* @pdev: platform device pointer
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* Description: this function calls the main to free the net resources
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* and releases the PCI resources.
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*/
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static void __devexit stmmac_pci_remove(struct pci_dev *pdev)
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{
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struct net_device *ndev = pci_get_drvdata(pdev);
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struct stmmac_priv *priv = netdev_priv(ndev);
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stmmac_dvr_remove(ndev);
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pci_set_drvdata(pdev, NULL);
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pci_iounmap(pdev, priv->ioaddr);
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pci_release_regions(pdev);
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pci_disable_device(pdev);
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}
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#ifdef CONFIG_PM
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static int stmmac_pci_suspend(struct pci_dev *pdev, pm_message_t state)
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{
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struct net_device *ndev = pci_get_drvdata(pdev);
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int ret;
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ret = stmmac_suspend(ndev);
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pci_save_state(pdev);
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pci_set_power_state(pdev, pci_choose_state(pdev, state));
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return ret;
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}
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static int stmmac_pci_resume(struct pci_dev *pdev)
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{
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struct net_device *ndev = pci_get_drvdata(pdev);
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pci_set_power_state(pdev, PCI_D0);
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pci_restore_state(pdev);
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return stmmac_resume(ndev);
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}
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#endif
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#define STMMAC_VENDOR_ID 0x700
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#define STMMAC_DEVICE_ID 0x1108
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static DEFINE_PCI_DEVICE_TABLE(stmmac_id_table) = {
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{
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PCI_DEVICE(STMMAC_VENDOR_ID, STMMAC_DEVICE_ID)}, {
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}
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};
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MODULE_DEVICE_TABLE(pci, stmmac_id_table);
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static struct pci_driver stmmac_driver = {
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.name = STMMAC_RESOURCE_NAME,
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.id_table = stmmac_id_table,
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.probe = stmmac_pci_probe,
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.remove = __devexit_p(stmmac_pci_remove),
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#ifdef CONFIG_PM
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.suspend = stmmac_pci_suspend,
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.resume = stmmac_pci_resume,
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#endif
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};
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/**
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* stmmac_init_module - Entry point for the driver
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* Description: This function is the entry point for the driver.
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*/
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static int __init stmmac_init_module(void)
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{
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int ret;
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ret = pci_register_driver(&stmmac_driver);
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if (ret < 0)
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pr_err("%s: ERROR: driver registration failed\n", __func__);
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return ret;
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}
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/**
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* stmmac_cleanup_module - Cleanup routine for the driver
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* Description: This function is the cleanup routine for the driver.
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*/
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static void __exit stmmac_cleanup_module(void)
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{
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pci_unregister_driver(&stmmac_driver);
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}
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module_init(stmmac_init_module);
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module_exit(stmmac_cleanup_module);
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MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet PCI driver");
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MODULE_AUTHOR("Rayagond Kokatanur <rayagond.kokatanur@vayavyalabs.com>");
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MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
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MODULE_LICENSE("GPL");
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