1/* 2 * drivers/net/ibm_emac/ibm_emac_rgmii.h 3 * 4 * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. 5 * 6 * Based on ocp_zmii.h/ibm_emac_zmii.h 7 * Armin Kuster akuster@mvista.com 8 * 9 * Copyright 2004 MontaVista Software, Inc. 10 * Matt Porter <mporter@kernel.crashing.org> 11 * 12 * Copyright (c) 2004, 2005 Zultys Technologies. 13 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> 14 * 15 * This program is free software; you can redistribute it and/or modify it 16 * under the terms of the GNU General Public License as published by the 17 * Free Software Foundation; either version 2 of the License, or (at your 18 * option) any later version. 19 */ 20 21#ifndef _IBM_EMAC_RGMII_H_ 22#define _IBM_EMAC_RGMII_H_ 23 24 25/* RGMII bridge */ 26struct rgmii_regs { 27 u32 fer; /* Function enable register */ 28 u32 ssr; /* Speed select register */ 29}; 30 31/* RGMII device */ 32struct ibm_ocp_rgmii { 33 struct rgmii_regs __iomem *base; 34 int users; /* number of EMACs using this RGMII bridge */ 35}; 36 37#ifdef CONFIG_IBM_EMAC_RGMII 38int rgmii_attach(void *emac) __init; 39 40void __rgmii_fini(struct ocp_device *ocpdev, int input); 41static inline void rgmii_fini(struct ocp_device *ocpdev, int input) 42{ 43 if (ocpdev) 44 __rgmii_fini(ocpdev, input); 45} 46 47void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed); 48 49int __rgmii_get_regs_len(struct ocp_device *ocpdev); 50static inline int rgmii_get_regs_len(struct ocp_device *ocpdev) 51{ 52 return ocpdev ? __rgmii_get_regs_len(ocpdev) : 0; 53} 54 55void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf); 56#else 57# define rgmii_attach(x) 0 58# define rgmii_fini(x,y) ((void)0) 59# define rgmii_set_speed(x,y,z) ((void)0) 60# define rgmii_get_regs_len(x) 0 61# define rgmii_dump_regs(x,buf) (buf) 62#endif /* !CONFIG_IBM_EMAC_RGMII */ 63 64#endif /* _IBM_EMAC_RGMII_H_ */ 65