162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * drivers/net/ethernet/ibm/emac/rgmii.h 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. 662306a36Sopenharmony_ci * 762306a36Sopenharmony_ci * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. 862306a36Sopenharmony_ci * <benh@kernel.crashing.org> 962306a36Sopenharmony_ci * 1062306a36Sopenharmony_ci * Based on the arch/ppc version of the driver: 1162306a36Sopenharmony_ci * 1262306a36Sopenharmony_ci * Based on ocp_zmii.h/ibm_emac_zmii.h 1362306a36Sopenharmony_ci * Armin Kuster akuster@mvista.com 1462306a36Sopenharmony_ci * 1562306a36Sopenharmony_ci * Copyright 2004 MontaVista Software, Inc. 1662306a36Sopenharmony_ci * Matt Porter <mporter@kernel.crashing.org> 1762306a36Sopenharmony_ci * 1862306a36Sopenharmony_ci * Copyright (c) 2004, 2005 Zultys Technologies. 1962306a36Sopenharmony_ci * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> 2062306a36Sopenharmony_ci */ 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci#ifndef __IBM_NEWEMAC_RGMII_H 2362306a36Sopenharmony_ci#define __IBM_NEWEMAC_RGMII_H 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci/* RGMII bridge type */ 2662306a36Sopenharmony_ci#define RGMII_STANDARD 0 2762306a36Sopenharmony_ci#define RGMII_AXON 1 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci/* RGMII bridge */ 3062306a36Sopenharmony_cistruct rgmii_regs { 3162306a36Sopenharmony_ci u32 fer; /* Function enable register */ 3262306a36Sopenharmony_ci u32 ssr; /* Speed select register */ 3362306a36Sopenharmony_ci}; 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci/* RGMII device */ 3662306a36Sopenharmony_cistruct rgmii_instance { 3762306a36Sopenharmony_ci struct rgmii_regs __iomem *base; 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci /* RGMII bridge flags */ 4062306a36Sopenharmony_ci int flags; 4162306a36Sopenharmony_ci#define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ci /* Only one EMAC whacks us at a time */ 4462306a36Sopenharmony_ci struct mutex lock; 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci /* number of EMACs using this RGMII bridge */ 4762306a36Sopenharmony_ci int users; 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci /* OF device instance */ 5062306a36Sopenharmony_ci struct platform_device *ofdev; 5162306a36Sopenharmony_ci}; 5262306a36Sopenharmony_ci 5362306a36Sopenharmony_ci#ifdef CONFIG_IBM_EMAC_RGMII 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_ciint rgmii_init(void); 5662306a36Sopenharmony_civoid rgmii_exit(void); 5762306a36Sopenharmony_ciint rgmii_attach(struct platform_device *ofdev, int input, int mode); 5862306a36Sopenharmony_civoid rgmii_detach(struct platform_device *ofdev, int input); 5962306a36Sopenharmony_civoid rgmii_get_mdio(struct platform_device *ofdev, int input); 6062306a36Sopenharmony_civoid rgmii_put_mdio(struct platform_device *ofdev, int input); 6162306a36Sopenharmony_civoid rgmii_set_speed(struct platform_device *ofdev, int input, int speed); 6262306a36Sopenharmony_ciint rgmii_get_regs_len(struct platform_device *ofdev); 6362306a36Sopenharmony_civoid *rgmii_dump_regs(struct platform_device *ofdev, void *buf); 6462306a36Sopenharmony_ci 6562306a36Sopenharmony_ci#else 6662306a36Sopenharmony_ci 6762306a36Sopenharmony_ci# define rgmii_init() 0 6862306a36Sopenharmony_ci# define rgmii_exit() do { } while(0) 6962306a36Sopenharmony_ci# define rgmii_attach(x,y,z) (-ENXIO) 7062306a36Sopenharmony_ci# define rgmii_detach(x,y) do { } while(0) 7162306a36Sopenharmony_ci# define rgmii_get_mdio(o,i) do { } while (0) 7262306a36Sopenharmony_ci# define rgmii_put_mdio(o,i) do { } while (0) 7362306a36Sopenharmony_ci# define rgmii_set_speed(x,y,z) do { } while(0) 7462306a36Sopenharmony_ci# define rgmii_get_regs_len(x) 0 7562306a36Sopenharmony_ci# define rgmii_dump_regs(x,buf) (buf) 7662306a36Sopenharmony_ci#endif /* !CONFIG_IBM_EMAC_RGMII */ 7762306a36Sopenharmony_ci 7862306a36Sopenharmony_ci#endif /* __IBM_NEWEMAC_RGMII_H */ 79