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Release 4.11 drivers/net/ethernet/cadence/macb_pci.c

/**
 * Cadence GEM PCI wrapper.
 *
 * Copyright (C) 2016 Cadence Design Systems - http://www.cadence.com
 *
 * Authors: Rafal Ozieblo <rafalo@cadence.com>
 *          Bartosz Folta <bfolta@cadence.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2  of
 * the License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/platform_data/macb.h>
#include <linux/platform_device.h>
#include "macb.h"


#define PCI_DRIVER_NAME "macb_pci"

#define PLAT_DRIVER_NAME "macb"


#define CDNS_VENDOR_ID 0x17cd

#define CDNS_DEVICE_ID 0xe007


#define GEM_PCLK_RATE 50000000

#define GEM_HCLK_RATE 50000000


static int macb_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int err; struct platform_device *plat_dev; struct platform_device_info plat_info; struct macb_platform_data plat_data; struct resource res[2]; /* enable pci device */ err = pcim_enable_device(pdev); if (err < 0) { dev_err(&pdev->dev, "Enabling PCI device has failed: %d", err); return err; } pci_set_master(pdev); /* set up resources */ memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); res[0].start = pci_resource_start(pdev, 0); res[0].end = pci_resource_end(pdev, 0); res[0].name = PCI_DRIVER_NAME; res[0].flags = IORESOURCE_MEM; res[1].start = pci_irq_vector(pdev, 0); res[1].name = PCI_DRIVER_NAME; res[1].flags = IORESOURCE_IRQ; dev_info(&pdev->dev, "EMAC physical base addr: %pa\n", &res[0].start); /* set up macb platform data */ memset(&plat_data, 0, sizeof(plat_data)); /* initialize clocks */ plat_data.pclk = clk_register_fixed_rate(&pdev->dev, "pclk", NULL, 0, GEM_PCLK_RATE); if (IS_ERR(plat_data.pclk)) { err = PTR_ERR(plat_data.pclk); goto err_pclk_register; } plat_data.hclk = clk_register_fixed_rate(&pdev->dev, "hclk", NULL, 0, GEM_HCLK_RATE); if (IS_ERR(plat_data.hclk)) { err = PTR_ERR(plat_data.hclk); goto err_hclk_register; } /* set up platform device info */ memset(&plat_info, 0, sizeof(plat_info)); plat_info.parent = &pdev->dev; plat_info.fwnode = pdev->dev.fwnode; plat_info.name = PLAT_DRIVER_NAME; plat_info.id = pdev->devfn; plat_info.res = res; plat_info.num_res = ARRAY_SIZE(res); plat_info.data = &plat_data; plat_info.size_data = sizeof(plat_data); plat_info.dma_mask = pdev->dma_mask; /* register platform device */ plat_dev = platform_device_register_full(&plat_info); if (IS_ERR(plat_dev)) { err = PTR_ERR(plat_dev); goto err_plat_dev_register; } pci_set_drvdata(pdev, plat_dev); return 0; err_plat_dev_register: clk_unregister(plat_data.hclk); err_hclk_register: clk_unregister(plat_data.pclk); err_pclk_register: return err; }

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Bartosz Folta439100.00%2100.00%
Total439100.00%2100.00%


static void macb_remove(struct pci_dev *pdev) { struct platform_device *plat_dev = pci_get_drvdata(pdev); struct macb_platform_data *plat_data = dev_get_platdata(&plat_dev->dev); platform_device_unregister(plat_dev); clk_unregister(plat_data->pclk); clk_unregister(plat_data->hclk); }

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Bartosz Folta53100.00%1100.00%
Total53100.00%1100.00%

static struct pci_device_id dev_id_table[] = { { PCI_DEVICE(CDNS_VENDOR_ID, CDNS_DEVICE_ID), }, { 0, } }; static struct pci_driver macb_pci_driver = { .name = PCI_DRIVER_NAME, .id_table = dev_id_table, .probe = macb_probe, .remove = macb_remove, }; module_pci_driver(macb_pci_driver); MODULE_DEVICE_TABLE(pci, dev_id_table); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Cadence NIC PCI wrapper");

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Bartosz Folta611100.00%2100.00%
Total611100.00%2100.00%
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