diff options
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-platform.c')
-rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-platform.c | 642 |
1 files changed, 642 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-platform.c b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c new file mode 100644 index 000000000000..84d4c51cab8c --- /dev/null +++ b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c @@ -0,0 +1,642 @@ +/* + * AMD 10Gb Ethernet driver + * + * This file is available to you under your choice of the following two + * licenses: + * + * License 1: GPLv2 + * + * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. + * + * This file is free software; you may copy, redistribute and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or (at + * your option) any later version. + * + * This file 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/>. + * + * This file incorporates work covered by the following copyright and + * permission notice: + * The Synopsys DWC ETHER XGMAC Software Driver and documentation + * (hereinafter "Software") is an unsupported proprietary work of Synopsys, + * Inc. unless otherwise expressly agreed to in writing between Synopsys + * and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for Licensed + * Product with Synopsys or any supplement thereto. Permission is hereby + * granted, free of charge, to any person obtaining a copy of this software + * annotated with this license and the Software, to deal in the Software + * without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is furnished + * to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + * + * + * License 2: Modified BSD + * + * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Advanced Micro Devices, Inc. nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This file incorporates work covered by the following copyright and + * permission notice: + * The Synopsys DWC ETHER XGMAC Software Driver and documentation + * (hereinafter "Software") is an unsupported proprietary work of Synopsys, + * Inc. unless otherwise expressly agreed to in writing between Synopsys + * and you. + * + * The Software IS NOT an item of Licensed Software or Licensed Product + * under any End User Software License Agreement or Agreement for Licensed + * Product with Synopsys or any supplement thereto. Permission is hereby + * granted, free of charge, to any person obtaining a copy of this software + * annotated with this license and the Software, to deal in the Software + * without restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is furnished + * to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" + * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_net.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/of_device.h> +#include <linux/clk.h> +#include <linux/property.h> +#include <linux/acpi.h> +#include <linux/mdio.h> + +#include "xgbe.h" +#include "xgbe-common.h" + +#ifdef CONFIG_ACPI +static const struct acpi_device_id xgbe_acpi_match[]; + +static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata) +{ + const struct acpi_device_id *id; + + id = acpi_match_device(xgbe_acpi_match, pdata->dev); + + return id ? (struct xgbe_version_data *)id->driver_data : NULL; +} + +static int xgbe_acpi_support(struct xgbe_prv_data *pdata) +{ + struct device *dev = pdata->dev; + u32 property; + int ret; + + /* Obtain the system clock setting */ + ret = device_property_read_u32(dev, XGBE_ACPI_DMA_FREQ, &property); + if (ret) { + dev_err(dev, "unable to obtain %s property\n", + XGBE_ACPI_DMA_FREQ); + return ret; + } + pdata->sysclk_rate = property; + + /* Obtain the PTP clock setting */ + ret = device_property_read_u32(dev, XGBE_ACPI_PTP_FREQ, &property); + if (ret) { + dev_err(dev, "unable to obtain %s property\n", + XGBE_ACPI_PTP_FREQ); + return ret; + } + pdata->ptpclk_rate = property; + + return 0; +} +#else /* CONFIG_ACPI */ +static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata) +{ + return NULL; +} + +static int xgbe_acpi_support(struct xgbe_prv_data *pdata) +{ + return -EINVAL; +} +#endif /* CONFIG_ACPI */ + +#ifdef CONFIG_OF +static const struct of_device_id xgbe_of_match[]; + +static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata) +{ + const struct of_device_id *id; + + id = of_match_device(xgbe_of_match, pdata->dev); + + return id ? (struct xgbe_version_data *)id->data : NULL; +} + +static int xgbe_of_support(struct xgbe_prv_data *pdata) +{ + struct device *dev = pdata->dev; + + /* Obtain the system clock setting */ + pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK); + if (IS_ERR(pdata->sysclk)) { + dev_err(dev, "dma devm_clk_get failed\n"); + return PTR_ERR(pdata->sysclk); + } + pdata->sysclk_rate = clk_get_rate(pdata->sysclk); + + /* Obtain the PTP clock setting */ + pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK); + if (IS_ERR(pdata->ptpclk)) { + dev_err(dev, "ptp devm_clk_get failed\n"); + return PTR_ERR(pdata->ptpclk); + } + pdata->ptpclk_rate = clk_get_rate(pdata->ptpclk); + + return 0; +} + +static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata) +{ + struct device *dev = pdata->dev; + struct device_node *phy_node; + struct platform_device *phy_pdev; + + phy_node = of_parse_phandle(dev->of_node, "phy-handle", 0); + if (phy_node) { + /* Old style device tree: + * The XGBE and PHY resources are separate + */ + phy_pdev = of_find_device_by_node(phy_node); + of_node_put(phy_node); + } else { + /* New style device tree: + * The XGBE and PHY resources are grouped together with + * the PHY resources listed last + */ + get_device(dev); + phy_pdev = pdata->platdev; + } + + return phy_pdev; +} +#else /* CONFIG_OF */ +static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata) +{ + return NULL; +} + +static int xgbe_of_support(struct xgbe_prv_data *pdata) +{ + return -EINVAL; +} + +static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata) +{ + return NULL; +} +#endif /* CONFIG_OF */ + +static unsigned int xgbe_resource_count(struct platform_device *pdev, + unsigned int type) +{ + unsigned int count; + int i; + + for (i = 0, count = 0; i < pdev->num_resources; i++) { + struct resource *res = &pdev->resource[i]; + + if (type == resource_type(res)) + count++; + } + + return count; +} + +static struct platform_device *xgbe_get_phy_pdev(struct xgbe_prv_data *pdata) +{ + struct platform_device *phy_pdev; + + if (pdata->use_acpi) { + get_device(pdata->dev); + phy_pdev = pdata->platdev; + } else { + phy_pdev = xgbe_of_get_phy_pdev(pdata); + } + + return phy_pdev; +} + +static struct xgbe_version_data *xgbe_get_vdata(struct xgbe_prv_data *pdata) +{ + return pdata->use_acpi ? xgbe_acpi_vdata(pdata) + : xgbe_of_vdata(pdata); +} + +static int xgbe_platform_probe(struct platform_device *pdev) +{ + struct xgbe_prv_data *pdata; + struct device *dev = &pdev->dev; + struct platform_device *phy_pdev; + struct resource *res; + const char *phy_mode; + unsigned int phy_memnum, phy_irqnum; + unsigned int dma_irqnum, dma_irqend; + enum dev_dma_attr attr; + int ret; + + pdata = xgbe_alloc_pdata(dev); + if (IS_ERR(pdata)) { + ret = PTR_ERR(pdata); + goto err_alloc; + } + + pdata->platdev = pdev; + pdata->adev = ACPI_COMPANION(dev); + platform_set_drvdata(pdev, pdata); + + /* Check if we should use ACPI or DT */ + pdata->use_acpi = dev->of_node ? 0 : 1; + + /* Get the version data */ + pdata->vdata = xgbe_get_vdata(pdata); + + phy_pdev = xgbe_get_phy_pdev(pdata); + if (!phy_pdev) { + dev_err(dev, "unable to obtain phy device\n"); + ret = -EINVAL; + goto err_phydev; + } + pdata->phy_platdev = phy_pdev; + pdata->phy_dev = &phy_pdev->dev; + + if (pdev == phy_pdev) { + /* New style device tree or ACPI: + * The XGBE and PHY resources are grouped together with + * the PHY resources listed last + */ + phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3; + phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1; + dma_irqnum = 1; + dma_irqend = phy_irqnum; + } else { + /* Old style device tree: + * The XGBE and PHY resources are separate + */ + phy_memnum = 0; + phy_irqnum = 0; + dma_irqnum = 1; + dma_irqend = xgbe_resource_count(pdev, IORESOURCE_IRQ); + } + + /* Obtain the mmio areas for the device */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + pdata->xgmac_regs = devm_ioremap_resource(dev, res); + if (IS_ERR(pdata->xgmac_regs)) { + dev_err(dev, "xgmac ioremap failed\n"); + ret = PTR_ERR(pdata->xgmac_regs); + goto err_io; + } + if (netif_msg_probe(pdata)) + dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + pdata->xpcs_regs = devm_ioremap_resource(dev, res); + if (IS_ERR(pdata->xpcs_regs)) { + dev_err(dev, "xpcs ioremap failed\n"); + ret = PTR_ERR(pdata->xpcs_regs); + goto err_io; + } + if (netif_msg_probe(pdata)) + dev_dbg(dev, "xpcs_regs = %p\n", pdata->xpcs_regs); + + res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++); + pdata->rxtx_regs = devm_ioremap_resource(dev, res); + if (IS_ERR(pdata->rxtx_regs)) { + dev_err(dev, "rxtx ioremap failed\n"); + ret = PTR_ERR(pdata->rxtx_regs); + goto err_io; + } + if (netif_msg_probe(pdata)) + dev_dbg(dev, "rxtx_regs = %p\n", pdata->rxtx_regs); + + res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++); + pdata->sir0_regs = devm_ioremap_resource(dev, res); + if (IS_ERR(pdata->sir0_regs)) { + dev_err(dev, "sir0 ioremap failed\n"); + ret = PTR_ERR(pdata->sir0_regs); + goto err_io; + } + if (netif_msg_probe(pdata)) + dev_dbg(dev, "sir0_regs = %p\n", pdata->sir0_regs); + + res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++); + pdata->sir1_regs = devm_ioremap_resource(dev, res); + if (IS_ERR(pdata->sir1_regs)) { + dev_err(dev, "sir1 ioremap failed\n"); + ret = PTR_ERR(pdata->sir1_regs); + goto err_io; + } + if (netif_msg_probe(pdata)) + dev_dbg(dev, "sir1_regs = %p\n", pdata->sir1_regs); + + /* Retrieve the MAC address */ + ret = device_property_read_u8_array(dev, XGBE_MAC_ADDR_PROPERTY, + pdata->mac_addr, + sizeof(pdata->mac_addr)); + if (ret || !is_valid_ether_addr(pdata->mac_addr)) { + dev_err(dev, "invalid %s property\n", XGBE_MAC_ADDR_PROPERTY); + if (!ret) + ret = -EINVAL; + goto err_io; + } + + /* Retrieve the PHY mode - it must be "xgmii" */ + ret = device_property_read_string(dev, XGBE_PHY_MODE_PROPERTY, + &phy_mode); + if (ret || strcmp(phy_mode, phy_modes(PHY_INTERFACE_MODE_XGMII))) { + dev_err(dev, "invalid %s property\n", XGBE_PHY_MODE_PROPERTY); + if (!ret) + ret = -EINVAL; + goto err_io; + } + pdata->phy_mode = PHY_INTERFACE_MODE_XGMII; + + /* Check for per channel interrupt support */ + if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY)) { + pdata->per_channel_irq = 1; + pdata->channel_irq_mode = XGBE_IRQ_MODE_EDGE; + } + + /* Obtain device settings unique to ACPI/OF */ + if (pdata->use_acpi) + ret = xgbe_acpi_support(pdata); + else + ret = xgbe_of_support(pdata); + if (ret) + goto err_io; + + /* Set the DMA coherency values */ + attr = device_get_dma_attr(dev); + if (attr == DEV_DMA_NOT_SUPPORTED) { + dev_err(dev, "DMA is not supported"); + ret = -ENODEV; + goto err_io; + } + pdata->coherent = (attr == DEV_DMA_COHERENT); + if (pdata->coherent) { + pdata->axdomain = XGBE_DMA_OS_AXDOMAIN; + pdata->arcache = XGBE_DMA_OS_ARCACHE; + pdata->awcache = XGBE_DMA_OS_AWCACHE; + } else { + pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN; + pdata->arcache = XGBE_DMA_SYS_ARCACHE; + pdata->awcache = XGBE_DMA_SYS_AWCACHE; + } + + /* Set the maximum fifo amounts */ + pdata->tx_max_fifo_size = pdata->vdata->tx_max_fifo_size; + pdata->rx_max_fifo_size = pdata->vdata->rx_max_fifo_size; + + /* Set the hardware channel and queue counts */ + xgbe_set_counts(pdata); + + /* Always have XGMAC and XPCS (auto-negotiation) interrupts */ + pdata->irq_count = 2; + + /* Get the device interrupt */ + ret = platform_get_irq(pdev, 0); + if (ret < 0) { + dev_err(dev, "platform_get_irq 0 failed\n"); + goto err_io; + } + pdata->dev_irq = ret; + + /* Get the per channel DMA interrupts */ + if (pdata->per_channel_irq) { + unsigned int i, max = ARRAY_SIZE(pdata->channel_irq); + + for (i = 0; (i < max) && (dma_irqnum < dma_irqend); i++) { + ret = platform_get_irq(pdata->platdev, dma_irqnum++); + if (ret < 0) { + netdev_err(pdata->netdev, + "platform_get_irq %u failed\n", + dma_irqnum - 1); + goto err_io; + } + + pdata->channel_irq[i] = ret; + } + + pdata->channel_irq_count = max; + + pdata->irq_count += max; + } + + /* Get the auto-negotiation interrupt */ + ret = platform_get_irq(phy_pdev, phy_irqnum++); + if (ret < 0) { + dev_err(dev, "platform_get_irq phy 0 failed\n"); + goto err_io; + } + pdata->an_irq = ret; + + /* Configure the netdev resource */ + ret = xgbe_config_netdev(pdata); + if (ret) + goto err_io; + + netdev_notice(pdata->netdev, "net device enabled\n"); + + return 0; + +err_io: + platform_device_put(phy_pdev); + +err_phydev: + xgbe_free_pdata(pdata); + +err_alloc: + dev_notice(dev, "net device not enabled\n"); + + return ret; +} + +static int xgbe_platform_remove(struct platform_device *pdev) +{ + struct xgbe_prv_data *pdata = platform_get_drvdata(pdev); + + xgbe_deconfig_netdev(pdata); + + platform_device_put(pdata->phy_platdev); + + xgbe_free_pdata(pdata); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int xgbe_platform_suspend(struct device *dev) +{ + struct xgbe_prv_data *pdata = dev_get_drvdata(dev); + struct net_device *netdev = pdata->netdev; + int ret = 0; + + DBGPR("-->xgbe_suspend\n"); + + if (netif_running(netdev)) + ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT); + + pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1); + pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER; + XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl); + + DBGPR("<--xgbe_suspend\n"); + + return ret; +} + +static int xgbe_platform_resume(struct device *dev) +{ + struct xgbe_prv_data *pdata = dev_get_drvdata(dev); + struct net_device *netdev = pdata->netdev; + int ret = 0; + + DBGPR("-->xgbe_resume\n"); + + pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER; + XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl); + + if (netif_running(netdev)) { + ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT); + + /* Schedule a restart in case the link or phy state changed + * while we were powered down. + */ + schedule_work(&pdata->restart_work); + } + + DBGPR("<--xgbe_resume\n"); + + return ret; +} +#endif /* CONFIG_PM_SLEEP */ + +static const struct xgbe_version_data xgbe_v1 = { + .init_function_ptrs_phy_impl = xgbe_init_function_ptrs_phy_v1, + .xpcs_access = XGBE_XPCS_ACCESS_V1, + .tx_max_fifo_size = 81920, + .rx_max_fifo_size = 81920, + .tx_tstamp_workaround = 1, +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id xgbe_acpi_match[] = { + { .id = "AMDI8001", + .driver_data = (kernel_ulong_t)&xgbe_v1 }, + {}, +}; + +MODULE_DEVICE_TABLE(acpi, xgbe_acpi_match); +#endif + +#ifdef CONFIG_OF +static const struct of_device_id xgbe_of_match[] = { + { .compatible = "amd,xgbe-seattle-v1a", + .data = &xgbe_v1 }, + {}, +}; + +MODULE_DEVICE_TABLE(of, xgbe_of_match); +#endif + +static SIMPLE_DEV_PM_OPS(xgbe_platform_pm_ops, + xgbe_platform_suspend, xgbe_platform_resume); + +static struct platform_driver xgbe_driver = { + .driver = { + .name = XGBE_DRV_NAME, +#ifdef CONFIG_ACPI + .acpi_match_table = xgbe_acpi_match, +#endif +#ifdef CONFIG_OF + .of_match_table = xgbe_of_match, +#endif + .pm = &xgbe_platform_pm_ops, + }, + .probe = xgbe_platform_probe, + .remove = xgbe_platform_remove, +}; + +int xgbe_platform_init(void) +{ + return platform_driver_register(&xgbe_driver); +} + +void xgbe_platform_exit(void) +{ + platform_driver_unregister(&xgbe_driver); +} |