/* * drivers/net/ibm_emac/ibm_emac_zmii.h * * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support. * * Copyright (c) 2004, 2005 Zultys Technologies. * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> * * Based on original work by * Armin Kuster <akuster@mvista.com> * Copyright 2001 MontaVista Softare Inc. * * 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_ZMII_H_ #define _IBM_EMAC_ZMII_H_ #include <linux/config.h> #include <linux/init.h> #include <asm/ocp.h> /* ZMII bridge registers */ struct zmii_regs { u32 fer; /* Function enable reg */ u32 ssr; /* Speed select reg */ u32 smiirs; /* SMII status reg */ }; /* ZMII device */ struct ibm_ocp_zmii { struct zmii_regs *base; int mode; /* subset of PHY_MODE_XXXX */ int users; /* number of EMACs using this ZMII bridge */ u32 fer_save; /* FER value left by firmware */ }; #ifdef CONFIG_IBM_EMAC_ZMII int zmii_attach(void *emac) __init; void __zmii_fini(struct ocp_device *ocpdev, int input) __exit; static inline void zmii_fini(struct ocp_device *ocpdev, int input) { if (ocpdev) __zmii_fini(ocpdev, input); } void __zmii_enable_mdio(struct ocp_device *ocpdev, int input); static inline void zmii_enable_mdio(struct ocp_device *ocpdev, int input) { if (ocpdev) __zmii_enable_mdio(ocpdev, input); } void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed); static inline void zmii_set_speed(struct ocp_device *ocpdev, int input, int speed) { if (ocpdev) __zmii_set_speed(ocpdev, input, speed); } int __zmii_get_regs_len(struct ocp_device *ocpdev); static inline int zmii_get_regs_len(struct ocp_device *ocpdev) { return ocpdev ? __zmii_get_regs_len(ocpdev) : 0; } void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf); #else # define zmii_attach(x) 0 # define zmii_fini(x,y) ((void)0) # define zmii_enable_mdio(x,y) ((void)0) # define zmii_set_speed(x,y,z) ((void)0) # define zmii_get_regs_len(x) 0 # define zmii_dump_regs(x,buf) (buf) #endif /* !CONFIG_IBM_EMAC_ZMII */ #endif /* _IBM_EMAC_ZMII_H_ */