/* * drivers/net/ethernet/ibm/emac/zmii.h * * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support. * * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. * <benh@kernel.crashing.org> * * Based on the arch/ppc version of the driver: * * 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_NEWEMAC_ZMII_H #define __IBM_NEWEMAC_ZMII_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 zmii_instance { struct zmii_regs __iomem *base; /* Only one EMAC whacks us at a time */ struct mutex lock; /* subset of PHY_MODE_XXXX */ int mode; /* number of EMACs using this ZMII bridge */ int users; /* FER value left by firmware */ u32 fer_save; /* OF device instance */ struct platform_device *ofdev; }; #ifdef [31mCONFIG_IBM_EMAC_ZMII[0m int zmii_init(void); void zmii_exit(void); int zmii_attach(struct platform_device *ofdev, int input, int *mode); void zmii_detach(struct platform_device *ofdev, int input); void zmii_get_mdio(struct platform_device *ofdev, int input); void zmii_put_mdio(struct platform_device *ofdev, int input); void zmii_set_speed(struct platform_device *ofdev, int input, int speed); int zmii_get_regs_len(struct platform_device *ocpdev); void *zmii_dump_regs(struct platform_device *ofdev, void *buf); #else # define zmii_init() 0 # define zmii_exit() do { } while(0) # define zmii_attach(x,y,z) (-ENXIO) # define zmii_detach(x,y) do { } while(0) # define zmii_get_mdio(x,y) do { } while(0) # define zmii_put_mdio(x,y) do { } while(0) # define zmii_set_speed(x,y,z) do { } while(0) # define zmii_get_regs_len(x) 0 # define zmii_dump_regs(x,buf) (buf) #endif /* !CONFIG_IBM_EMAC_ZMII */ #endif /* __IBM_NEWEMAC_ZMII_H */ |