83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* drivers/net/ibm_emac/ibm_emac_zmii.h
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*
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* Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
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*
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* Copyright (c) 2004, 2005 Zultys Technologies.
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* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
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*
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* Based on original work by
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* Armin Kuster <akuster@mvista.com>
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* Copyright 2001 MontaVista Softare Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#ifndef _IBM_EMAC_ZMII_H_
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#define _IBM_EMAC_ZMII_H_
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#include <linux/init.h>
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#include <asm/ocp.h>
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/* ZMII bridge registers */
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struct zmii_regs {
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u32 fer; /* Function enable reg */
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u32 ssr; /* Speed select reg */
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u32 smiirs; /* SMII status reg */
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};
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/* ZMII device */
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struct ibm_ocp_zmii {
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struct zmii_regs __iomem *base;
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int mode; /* subset of PHY_MODE_XXXX */
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int users; /* number of EMACs using this ZMII bridge */
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u32 fer_save; /* FER value left by firmware */
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};
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#ifdef CONFIG_IBM_EMAC_ZMII
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int zmii_attach(void *emac) __init;
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void __zmii_fini(struct ocp_device *ocpdev, int input) __exit;
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static inline void zmii_fini(struct ocp_device *ocpdev, int input)
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{
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if (ocpdev)
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__zmii_fini(ocpdev, input);
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}
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void __zmii_enable_mdio(struct ocp_device *ocpdev, int input);
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static inline void zmii_enable_mdio(struct ocp_device *ocpdev, int input)
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{
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if (ocpdev)
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__zmii_enable_mdio(ocpdev, input);
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}
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void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
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static inline void zmii_set_speed(struct ocp_device *ocpdev, int input,
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int speed)
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{
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if (ocpdev)
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__zmii_set_speed(ocpdev, input, speed);
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}
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int __zmii_get_regs_len(struct ocp_device *ocpdev);
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static inline int zmii_get_regs_len(struct ocp_device *ocpdev)
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{
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return ocpdev ? __zmii_get_regs_len(ocpdev) : 0;
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}
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void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf);
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#else
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# define zmii_attach(x) 0
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# define zmii_fini(x,y) ((void)0)
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# define zmii_enable_mdio(x,y) ((void)0)
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# define zmii_set_speed(x,y,z) ((void)0)
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# define zmii_get_regs_len(x) 0
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# define zmii_dump_regs(x,buf) (buf)
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#endif /* !CONFIG_IBM_EMAC_ZMII */
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#endif /* _IBM_EMAC_ZMII_H_ */
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