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/*
* drivers/net/ibm_emac/ibm_emac_rgmii.c
*
* Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
*
* Based on ocp_zmii.h/ibm_emac_zmii.h
* Armin Kuster akuster@mvista.com
*
* Copyright 2004 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
* Copyright (c) 2004, 2005 Zultys Technologies.
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
*
* This program is free software; you can redistribute it 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.
*/
#ifndef _IBM_EMAC_RGMII_H_
#define _IBM_EMAC_RGMII_H_
#include <linux/config.h>
/* RGMII bridge */
struct rgmii_regs {
u32 fer; /* Function enable register */
u32 ssr; /* Speed select register */
};
/* RGMII device */
struct ibm_ocp_rgmii {
struct rgmii_regs *base;
int users; /* number of EMACs using this RGMII bridge */
};
#ifdef CONFIG_IBM_EMAC_RGMII
int rgmii_attach(void *emac) __init;
void __rgmii_fini(struct ocp_device *ocpdev, int input) __exit;
static inline void rgmii_fini(struct ocp_device *ocpdev, int input)
{
if (ocpdev)
__rgmii_fini(ocpdev, input);
}
void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
int __rgmii_get_regs_len(struct ocp_device *ocpdev);
static inline int rgmii_get_regs_len(struct ocp_device *ocpdev)
{
return ocpdev ? __rgmii_get_regs_len(ocpdev) : 0;
}
void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf);
#else
# define rgmii_attach(x) 0
# define rgmii_fini(x,y) ((void)0)
# define rgmii_set_speed(x,y,z) ((void)0)
# define rgmii_get_regs_len(x) 0
# define rgmii_dump_regs(x,buf) (buf)
#endif /* !CONFIG_IBM_EMAC_RGMII */
#endif /* _IBM_EMAC_RGMII_H_ */
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