/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * drivers/net/ethernet/ibm/emac/rgmii.h * * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. * * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. * <benh@kernel.crashing.org> * * Based on the arch/ppc version of the driver: * * 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> */ #ifndef __IBM_NEWEMAC_RGMII_H #define __IBM_NEWEMAC_RGMII_H /* RGMII bridge type */ #define RGMII_STANDARD 0 #define RGMII_AXON 1 /* RGMII bridge */ struct rgmii_regs { u32 fer; /* Function enable register */ u32 ssr; /* Speed select register */ }; /* RGMII device */ struct rgmii_instance { struct rgmii_regs __iomem *base; /* RGMII bridge flags */ int flags; #define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001 /* Only one EMAC whacks us at a time */ struct mutex lock; /* number of EMACs using this RGMII bridge */ int users; /* OF device instance */ struct platform_device *ofdev; }; #ifdef [31mCONFIG_IBM_EMAC_RGMII[0m int rgmii_init(void); void rgmii_exit(void); int rgmii_attach(struct platform_device *ofdev, int input, int mode); void rgmii_detach(struct platform_device *ofdev, int input); void rgmii_get_mdio(struct platform_device *ofdev, int input); void rgmii_put_mdio(struct platform_device *ofdev, int input); void rgmii_set_speed(struct platform_device *ofdev, int input, int speed); int rgmii_get_regs_len(struct platform_device *ofdev); void *rgmii_dump_regs(struct platform_device *ofdev, void *buf); #else # define rgmii_init() 0 # define rgmii_exit() do { } while(0) # define rgmii_attach(x,y,z) (-ENXIO) # define rgmii_detach(x,y) do { } while(0) # define rgmii_get_mdio(o,i) do { } while (0) # define rgmii_put_mdio(o,i) do { } while (0) # define rgmii_set_speed(x,y,z) do { } while(0) # define rgmii_get_regs_len(x) 0 # define rgmii_dump_regs(x,buf) (buf) #endif /* !CONFIG_IBM_EMAC_RGMII */ #endif /* __IBM_NEWEMAC_RGMII_H */ |