c326de88b8
This is a revised patch that permits a shifted access to the LAN9221 registers. More specifically: It adds a shift parameter in the platform_data. It introduces an ops in smsc911x_data. A choice of access function to use at run-time. Four new shifted access function. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
/***************************************************************************
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*
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* Copyright (C) 2004-2008 SMSC
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* Copyright (C) 2005-2008 ARM
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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***************************************************************************/
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#ifndef __LINUX_SMSC911X_H__
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#define __LINUX_SMSC911X_H__
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#include <linux/phy.h>
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/* platform_device configuration data, should be assigned to
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* the platform_device's dev.platform_data */
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struct smsc911x_platform_config {
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unsigned int irq_polarity;
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unsigned int irq_type;
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unsigned int flags;
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unsigned int shift;
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phy_interface_t phy_interface;
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unsigned char mac[6];
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};
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/* Constants for platform_device irq polarity configuration */
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#define SMSC911X_IRQ_POLARITY_ACTIVE_LOW 0
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#define SMSC911X_IRQ_POLARITY_ACTIVE_HIGH 1
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/* Constants for platform_device irq type configuration */
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#define SMSC911X_IRQ_TYPE_OPEN_DRAIN 0
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#define SMSC911X_IRQ_TYPE_PUSH_PULL 1
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/* Constants for flags */
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#define SMSC911X_USE_16BIT (BIT(0))
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#define SMSC911X_USE_32BIT (BIT(1))
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#define SMSC911X_FORCE_INTERNAL_PHY (BIT(2))
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#define SMSC911X_FORCE_EXTERNAL_PHY (BIT(3))
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#define SMSC911X_SAVE_MAC_ADDRESS (BIT(4))
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/*
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* SMSC911X_SWAP_FIFO:
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* Enables software byte swap for fifo data. Should only be used as a
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* "last resort" in the case of big endian mode on boards with incorrectly
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* routed data bus to older devices such as LAN9118. Newer devices such as
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* LAN9221 can handle this in hardware, there are registers to control
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* this swapping but the driver doesn't currently use them.
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*/
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#define SMSC911X_SWAP_FIFO (BIT(5))
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#endif /* __LINUX_SMSC911X_H__ */
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