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Release 4.11 drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c

/*******************************************************************************
  This contains the functions to handle the pci driver.

  Copyright (C) 2011-2012  Vayavya Labs Pvt Ltd

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Author: Rayagond Kokatanur <rayagond@vayavyalabs.com>
  Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/

#include <linux/pci.h>
#include <linux/dmi.h>

#include "stmmac.h"

/*
 * This struct is used to associate PCI Function of MAC controller on a board,
 * discovered via DMI, with the address of PHY connected to the MAC. The
 * negative value of the address means that MAC controller is not connected
 * with PHY.
 */

struct stmmac_pci_dmi_data {
	
const char *name;
	
unsigned int func;
	
int phy_addr;
};


struct stmmac_pci_info {
	
struct pci_dev *pdev;
	
int (*setup)(struct plat_stmmacenet_data *plat,
		     struct stmmac_pci_info *info);
	
struct stmmac_pci_dmi_data *dmi;
};


static int stmmac_pci_find_phy_addr(struct stmmac_pci_info *info) { const char *name = dmi_get_system_info(DMI_BOARD_NAME); unsigned int func = PCI_FUNC(info->pdev->devfn); struct stmmac_pci_dmi_data *dmi; /* * Galileo boards with old firmware don't support DMI. We always return * 1 here, so at least first found MAC controller would be probed. */ if (!name) return 1; for (dmi = info->dmi; dmi->name && *dmi->name; dmi++) { if (!strcmp(dmi->name, name) && dmi->func == func) return dmi->phy_addr; } return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Andy Shevchenko97100.00%1100.00%
Total97100.00%1100.00%


static void stmmac_default_data(struct plat_stmmacenet_data *plat) { plat->bus_id = 1; plat->phy_addr = 0; plat->interface = PHY_INTERFACE_MODE_GMII; plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */ plat->has_gmac = 1; plat->force_sf_dma_mode = 1; plat->mdio_bus_data->phy_reset = NULL; plat->mdio_bus_data->phy_mask = 0; plat->dma_cfg->pbl = 32; plat->dma_cfg->pblx8 = true; /* TODO: AXI */ /* Set default value for multicast hash bins */ plat->multicast_filter_bins = HASH_TABLE_SIZE; /* Set default value for unicast filter entries */ plat->unicast_filter_entries = 1; /* Set the maxmtu to a default of JUMBO_LEN */ plat->maxmtu = JUMBO_LEN; }

Contributors

PersonTokensPropCommitsCommitProp
Giuseppe Cavallaro4645.10%342.86%
Andy Shevchenko4140.20%228.57%
Niklas Cassel87.84%114.29%
Kweh, Hock Leong76.86%114.29%
Total102100.00%7100.00%


static int quark_default_data(struct plat_stmmacenet_data *plat, struct stmmac_pci_info *info) { struct pci_dev *pdev = info->pdev; int ret; /* * Refuse to load the driver and register net device if MAC controller * does not connect to any PHY interface. */ ret = stmmac_pci_find_phy_addr(info); if (ret < 0) return ret; plat->bus_id = PCI_DEVID(pdev->bus->number, pdev->devfn); plat->phy_addr = ret; plat->interface = PHY_INTERFACE_MODE_RMII; plat->clk_csr = 2; plat->has_gmac = 1; plat->force_sf_dma_mode = 1; plat->mdio_bus_data->phy_reset = NULL; plat->mdio_bus_data->phy_mask = 0; plat->dma_cfg->pbl = 16; plat->dma_cfg->pblx8 = true; plat->dma_cfg->fixed_burst = 1; /* AXI (TODO) */ /* Set default value for multicast hash bins */ plat->multicast_filter_bins = HASH_TABLE_SIZE; /* Set default value for unicast filter entries */ plat->unicast_filter_entries = 1; /* Set the maxmtu to a default of JUMBO_LEN */ plat->maxmtu = JUMBO_LEN; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Kweh, Hock Leong12780.89%240.00%
Andy Shevchenko2113.38%120.00%
Niklas Cassel85.10%120.00%
Giuseppe Cavallaro10.64%120.00%
Total157100.00%5100.00%

static struct stmmac_pci_dmi_data quark_pci_dmi_data[] = { { .name = "Galileo", .func = 6, .phy_addr = 1, }, { .name = "GalileoGen2", .func = 6, .phy_addr = 1, }, {} }; static struct stmmac_pci_info quark_pci_info = { .setup = quark_default_data, .dmi = quark_pci_dmi_data, }; /** * stmmac_pci_probe * * @pdev: pci device pointer * @id: pointer to table of device id/id's. * * Description: This probing function gets called for all PCI devices which * match the ID table and are not "owned" by other driver yet. This function * gets passed a "struct pci_dev *" for each device whose entry in the ID table * matches the device. The probe functions returns zero when the driver choose * to take "ownership" of the device or an error code(-ve no) otherwise. */
static int stmmac_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct stmmac_pci_info *info = (struct stmmac_pci_info *)id->driver_data; struct plat_stmmacenet_data *plat; struct stmmac_resources res; int i; int ret; plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL); if (!plat) return -ENOMEM; plat->mdio_bus_data = devm_kzalloc(&pdev->dev, sizeof(*plat->mdio_bus_data), GFP_KERNEL); if (!plat->mdio_bus_data) return -ENOMEM; plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg), GFP_KERNEL); if (!plat->dma_cfg) return -ENOMEM; /* Enable pci device */ ret = pcim_enable_device(pdev); if (ret) { dev_err(&pdev->dev, "%s: ERROR: failed to enable device\n", __func__); return ret; } /* Get the base address of device */ for (i = 0; i <= PCI_STD_RESOURCE_END; i++) { if (pci_resource_len(pdev, i) == 0) continue; ret = pcim_iomap_regions(pdev, BIT(i), pci_name(pdev)); if (ret) return ret; break; } pci_set_master(pdev); if (info) { info->pdev = pdev; if (info->setup) { ret = info->setup(plat, info); if (ret) return ret; } } else stmmac_default_data(plat); pci_enable_msi(pdev); memset(&res, 0, sizeof(res)); res.addr = pcim_iomap_table(pdev)[i]; res.wol_irq = pdev->irq; res.irq = pdev->irq; return stmmac_dvr_probe(&pdev->dev, plat, &res); }

Contributors

PersonTokensPropCommitsCommitProp
Andy Shevchenko13240.00%440.00%
Giuseppe Cavallaro9528.79%220.00%
Kweh, Hock Leong5817.58%220.00%
Joachim Eastwood4513.64%220.00%
Total330100.00%10100.00%

/** * stmmac_pci_remove * * @pdev: platform device pointer * Description: this function calls the main to free the net resources * and releases the PCI resources. */
static void stmmac_pci_remove(struct pci_dev *pdev) { stmmac_dvr_remove(&pdev->dev); }

Contributors

PersonTokensPropCommitsCommitProp
Giuseppe Cavallaro1368.42%133.33%
Joachim Eastwood315.79%133.33%
Andy Shevchenko315.79%133.33%
Total19100.00%3100.00%

static SIMPLE_DEV_PM_OPS(stmmac_pm_ops, stmmac_suspend, stmmac_resume); #define STMMAC_VENDOR_ID 0x700 #define STMMAC_QUARK_ID 0x0937 #define STMMAC_DEVICE_ID 0x1108 static const struct pci_device_id stmmac_id_table[] = { {PCI_DEVICE(STMMAC_VENDOR_ID, STMMAC_DEVICE_ID)}, {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_MAC)}, {PCI_VDEVICE(INTEL, STMMAC_QUARK_ID), (kernel_ulong_t)&quark_pci_info}, {} }; MODULE_DEVICE_TABLE(pci, stmmac_id_table); static struct pci_driver stmmac_pci_driver = { .name = STMMAC_RESOURCE_NAME, .id_table = stmmac_id_table, .probe = stmmac_pci_probe, .remove = stmmac_pci_remove, .driver = { .pm = &stmmac_pm_ops, }, }; module_pci_driver(stmmac_pci_driver); MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet PCI driver"); MODULE_AUTHOR("Rayagond Kokatanur <rayagond.kokatanur@vayavyalabs.com>"); MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Andy Shevchenko39040.46%833.33%
Kweh, Hock Leong25025.93%312.50%
Giuseppe Cavallaro24024.90%520.83%
Joachim Eastwood505.19%312.50%
Niklas Cassel161.66%14.17%
Alessandro Rubini101.04%14.17%
Benoit Taine60.62%14.17%
Ben Hutchings10.10%14.17%
Corentin Labbe10.10%14.17%
Total964100.00%24100.00%
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