641 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			641 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * AMD 10Gb Ethernet driver
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|  *
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|  * This file is available to you under your choice of the following two
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|  * licenses:
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|  *
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|  * License 1: GPLv2
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|  *
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|  * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
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|  *
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|  * This file is free software; you may copy, redistribute 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 (at
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|  * your option) any later version.
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|  *
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|  * This file is distributed in the hope that it will be useful, but
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|  * WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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|  * 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, see <http://www.gnu.org/licenses/>.
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|  *
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|  * 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.
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|  *
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|  *
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|  * License 2: Modified BSD
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|  *
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|  * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
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|  * All rights reserved.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions are met:
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|  *     * Redistributions of source code must retain the above copyright
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|  *       notice, this list of conditions and the following disclaimer.
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|  *     * Redistributions in binary form must reproduce the above copyright
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|  *       notice, this list of conditions and the following disclaimer in the
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|  *       documentation and/or other materials provided with the distribution.
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|  *     * Neither the name of Advanced Micro Devices, Inc. nor the
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|  *       names of its contributors may be used to endorse or promote products
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|  *       derived from this software without specific prior written permission.
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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|  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | |
|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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|  * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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|  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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|  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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|  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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|  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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|  * (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.
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|  */
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| 
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| #include <linux/module.h>
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| #include <linux/device.h>
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| #include <linux/platform_device.h>
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| #include <linux/spinlock.h>
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| #include <linux/netdevice.h>
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| #include <linux/etherdevice.h>
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| #include <linux/io.h>
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| #include <linux/of.h>
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| #include <linux/of_net.h>
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| #include <linux/of_address.h>
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| #include <linux/of_platform.h>
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| #include <linux/of_device.h>
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| #include <linux/clk.h>
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| #include <linux/property.h>
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| #include <linux/acpi.h>
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| #include <linux/mdio.h>
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| 
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| #include "xgbe.h"
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| #include "xgbe-common.h"
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| 
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| #ifdef CONFIG_ACPI
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| static const struct acpi_device_id xgbe_acpi_match[];
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| 
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| static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
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| {
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| 	const struct acpi_device_id *id;
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| 
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| 	id = acpi_match_device(xgbe_acpi_match, pdata->dev);
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| 
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| 	return id ? (struct xgbe_version_data *)id->driver_data : NULL;
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| }
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| 
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| static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
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| {
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| 	struct device *dev = pdata->dev;
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| 	u32 property;
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| 	int ret;
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| 
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| 	/* Obtain the system clock setting */
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| 	ret = device_property_read_u32(dev, XGBE_ACPI_DMA_FREQ, &property);
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| 	if (ret) {
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| 		dev_err(dev, "unable to obtain %s property\n",
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| 			XGBE_ACPI_DMA_FREQ);
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| 		return ret;
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| 	}
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| 	pdata->sysclk_rate = property;
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| 
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| 	/* Obtain the PTP clock setting */
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| 	ret = device_property_read_u32(dev, XGBE_ACPI_PTP_FREQ, &property);
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| 	if (ret) {
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| 		dev_err(dev, "unable to obtain %s property\n",
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| 			XGBE_ACPI_PTP_FREQ);
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| 		return ret;
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| 	}
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| 	pdata->ptpclk_rate = property;
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| 
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| 	return 0;
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| }
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| #else   /* CONFIG_ACPI */
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| static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
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| {
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| 	return NULL;
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| }
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| 
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| static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
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| {
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| 	return -EINVAL;
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| }
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| #endif  /* CONFIG_ACPI */
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| 
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| #ifdef CONFIG_OF
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| static const struct of_device_id xgbe_of_match[];
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| 
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| static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
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| {
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| 	const struct of_device_id *id;
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| 
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| 	id = of_match_device(xgbe_of_match, pdata->dev);
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| 
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| 	return id ? (struct xgbe_version_data *)id->data : NULL;
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| }
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| 
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| static int xgbe_of_support(struct xgbe_prv_data *pdata)
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| {
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| 	struct device *dev = pdata->dev;
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| 
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| 	/* Obtain the system clock setting */
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| 	pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK);
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| 	if (IS_ERR(pdata->sysclk)) {
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| 		dev_err(dev, "dma devm_clk_get failed\n");
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| 		return PTR_ERR(pdata->sysclk);
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| 	}
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| 	pdata->sysclk_rate = clk_get_rate(pdata->sysclk);
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| 
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| 	/* Obtain the PTP clock setting */
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| 	pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK);
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| 	if (IS_ERR(pdata->ptpclk)) {
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| 		dev_err(dev, "ptp devm_clk_get failed\n");
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| 		return PTR_ERR(pdata->ptpclk);
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| 	}
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| 	pdata->ptpclk_rate = clk_get_rate(pdata->ptpclk);
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| 
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| 	return 0;
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| }
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| 
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| static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
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| {
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| 	struct device *dev = pdata->dev;
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| 	struct device_node *phy_node;
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| 	struct platform_device *phy_pdev;
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| 
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| 	phy_node = of_parse_phandle(dev->of_node, "phy-handle", 0);
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| 	if (phy_node) {
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| 		/* Old style device tree:
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| 		 *   The XGBE and PHY resources are separate
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| 		 */
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| 		phy_pdev = of_find_device_by_node(phy_node);
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| 		of_node_put(phy_node);
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| 	} else {
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| 		/* New style device tree:
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| 		 *   The XGBE and PHY resources are grouped together with
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| 		 *   the PHY resources listed last
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| 		 */
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| 		get_device(dev);
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| 		phy_pdev = pdata->platdev;
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| 	}
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| 
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| 	return phy_pdev;
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| }
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| #else   /* CONFIG_OF */
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| static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
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| {
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| 	return NULL;
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| }
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| 
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| static int xgbe_of_support(struct xgbe_prv_data *pdata)
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| {
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| 	return -EINVAL;
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| }
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| 
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| static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
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| {
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| 	return NULL;
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| }
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| #endif  /* CONFIG_OF */
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| 
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| static unsigned int xgbe_resource_count(struct platform_device *pdev,
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| 					unsigned int type)
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| {
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| 	unsigned int count;
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| 	int i;
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| 
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| 	for (i = 0, count = 0; i < pdev->num_resources; i++) {
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| 		struct resource *res = &pdev->resource[i];
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| 
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| 		if (type == resource_type(res))
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| 			count++;
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| 	}
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| 
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| 	return count;
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| }
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| 
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| static struct platform_device *xgbe_get_phy_pdev(struct xgbe_prv_data *pdata)
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| {
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| 	struct platform_device *phy_pdev;
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| 
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| 	if (pdata->use_acpi) {
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| 		get_device(pdata->dev);
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| 		phy_pdev = pdata->platdev;
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| 	} else {
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| 		phy_pdev = xgbe_of_get_phy_pdev(pdata);
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| 	}
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| 
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| 	return phy_pdev;
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| }
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| 
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| static struct xgbe_version_data *xgbe_get_vdata(struct xgbe_prv_data *pdata)
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| {
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| 	return pdata->use_acpi ? xgbe_acpi_vdata(pdata)
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| 			       : xgbe_of_vdata(pdata);
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| }
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| 
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| static int xgbe_platform_probe(struct platform_device *pdev)
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| {
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| 	struct xgbe_prv_data *pdata;
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| 	struct device *dev = &pdev->dev;
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| 	struct platform_device *phy_pdev;
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| 	struct resource *res;
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| 	const char *phy_mode;
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| 	unsigned int phy_memnum, phy_irqnum;
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| 	unsigned int dma_irqnum, dma_irqend;
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| 	enum dev_dma_attr attr;
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| 	int ret;
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| 
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| 	pdata = xgbe_alloc_pdata(dev);
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| 	if (IS_ERR(pdata)) {
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| 		ret = PTR_ERR(pdata);
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| 		goto err_alloc;
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| 	}
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| 
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| 	pdata->platdev = pdev;
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| 	pdata->adev = ACPI_COMPANION(dev);
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| 	platform_set_drvdata(pdev, pdata);
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| 
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| 	/* Check if we should use ACPI or DT */
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| 	pdata->use_acpi = dev->of_node ? 0 : 1;
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| 
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| 	/* Get the version data */
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| 	pdata->vdata = xgbe_get_vdata(pdata);
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| 
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| 	phy_pdev = xgbe_get_phy_pdev(pdata);
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| 	if (!phy_pdev) {
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| 		dev_err(dev, "unable to obtain phy device\n");
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| 		ret = -EINVAL;
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| 		goto err_phydev;
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| 	}
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| 	pdata->phy_platdev = phy_pdev;
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| 	pdata->phy_dev = &phy_pdev->dev;
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| 
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| 	if (pdev == phy_pdev) {
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| 		/* New style device tree or ACPI:
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| 		 *   The XGBE and PHY resources are grouped together with
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| 		 *   the PHY resources listed last
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| 		 */
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| 		phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3;
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| 		phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1;
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| 		dma_irqnum = 1;
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| 		dma_irqend = phy_irqnum;
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| 	} else {
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| 		/* Old style device tree:
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| 		 *   The XGBE and PHY resources are separate
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| 		 */
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| 		phy_memnum = 0;
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| 		phy_irqnum = 0;
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| 		dma_irqnum = 1;
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| 		dma_irqend = xgbe_resource_count(pdev, IORESOURCE_IRQ);
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| 	}
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| 
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| 	/* Obtain the mmio areas for the device */
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| 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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| 	pdata->xgmac_regs = devm_ioremap_resource(dev, res);
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| 	if (IS_ERR(pdata->xgmac_regs)) {
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| 		dev_err(dev, "xgmac ioremap failed\n");
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| 		ret = PTR_ERR(pdata->xgmac_regs);
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| 		goto err_io;
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| 	}
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| 	if (netif_msg_probe(pdata))
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| 		dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs);
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| 
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| 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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| 	pdata->xpcs_regs = devm_ioremap_resource(dev, res);
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| 	if (IS_ERR(pdata->xpcs_regs)) {
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| 		dev_err(dev, "xpcs ioremap failed\n");
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| 		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++);
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| 	pdata->rxtx_regs = devm_ioremap_resource(dev, res);
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| 	if (IS_ERR(pdata->rxtx_regs)) {
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| 		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,
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| 					    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->arcr = XGBE_DMA_OS_ARCR;
 | |
| 		pdata->awcr = XGBE_DMA_OS_AWCR;
 | |
| 	} else {
 | |
| 		pdata->arcr = XGBE_DMA_SYS_ARCR;
 | |
| 		pdata->awcr = XGBE_DMA_SYS_AWCR;
 | |
| 	}
 | |
| 
 | |
| 	/* 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);
 | |
| }
 | 
