18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * drivers/net/ethernet/ibm/emac/rgmii.h 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. 68c2ecf20Sopenharmony_ci * 78c2ecf20Sopenharmony_ci * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. 88c2ecf20Sopenharmony_ci * <benh@kernel.crashing.org> 98c2ecf20Sopenharmony_ci * 108c2ecf20Sopenharmony_ci * Based on the arch/ppc version of the driver: 118c2ecf20Sopenharmony_ci * 128c2ecf20Sopenharmony_ci * Based on ocp_zmii.h/ibm_emac_zmii.h 138c2ecf20Sopenharmony_ci * Armin Kuster akuster@mvista.com 148c2ecf20Sopenharmony_ci * 158c2ecf20Sopenharmony_ci * Copyright 2004 MontaVista Software, Inc. 168c2ecf20Sopenharmony_ci * Matt Porter <mporter@kernel.crashing.org> 178c2ecf20Sopenharmony_ci * 188c2ecf20Sopenharmony_ci * Copyright (c) 2004, 2005 Zultys Technologies. 198c2ecf20Sopenharmony_ci * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> 208c2ecf20Sopenharmony_ci */ 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ci#ifndef __IBM_NEWEMAC_RGMII_H 238c2ecf20Sopenharmony_ci#define __IBM_NEWEMAC_RGMII_H 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci/* RGMII bridge type */ 268c2ecf20Sopenharmony_ci#define RGMII_STANDARD 0 278c2ecf20Sopenharmony_ci#define RGMII_AXON 1 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci/* RGMII bridge */ 308c2ecf20Sopenharmony_cistruct rgmii_regs { 318c2ecf20Sopenharmony_ci u32 fer; /* Function enable register */ 328c2ecf20Sopenharmony_ci u32 ssr; /* Speed select register */ 338c2ecf20Sopenharmony_ci}; 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci/* RGMII device */ 368c2ecf20Sopenharmony_cistruct rgmii_instance { 378c2ecf20Sopenharmony_ci struct rgmii_regs __iomem *base; 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci /* RGMII bridge flags */ 408c2ecf20Sopenharmony_ci int flags; 418c2ecf20Sopenharmony_ci#define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci /* Only one EMAC whacks us at a time */ 448c2ecf20Sopenharmony_ci struct mutex lock; 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ci /* number of EMACs using this RGMII bridge */ 478c2ecf20Sopenharmony_ci int users; 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci /* OF device instance */ 508c2ecf20Sopenharmony_ci struct platform_device *ofdev; 518c2ecf20Sopenharmony_ci}; 528c2ecf20Sopenharmony_ci 538c2ecf20Sopenharmony_ci#ifdef CONFIG_IBM_EMAC_RGMII 548c2ecf20Sopenharmony_ci 558c2ecf20Sopenharmony_ciint rgmii_init(void); 568c2ecf20Sopenharmony_civoid rgmii_exit(void); 578c2ecf20Sopenharmony_ciint rgmii_attach(struct platform_device *ofdev, int input, int mode); 588c2ecf20Sopenharmony_civoid rgmii_detach(struct platform_device *ofdev, int input); 598c2ecf20Sopenharmony_civoid rgmii_get_mdio(struct platform_device *ofdev, int input); 608c2ecf20Sopenharmony_civoid rgmii_put_mdio(struct platform_device *ofdev, int input); 618c2ecf20Sopenharmony_civoid rgmii_set_speed(struct platform_device *ofdev, int input, int speed); 628c2ecf20Sopenharmony_ciint rgmii_get_regs_len(struct platform_device *ofdev); 638c2ecf20Sopenharmony_civoid *rgmii_dump_regs(struct platform_device *ofdev, void *buf); 648c2ecf20Sopenharmony_ci 658c2ecf20Sopenharmony_ci#else 668c2ecf20Sopenharmony_ci 678c2ecf20Sopenharmony_ci# define rgmii_init() 0 688c2ecf20Sopenharmony_ci# define rgmii_exit() do { } while(0) 698c2ecf20Sopenharmony_ci# define rgmii_attach(x,y,z) (-ENXIO) 708c2ecf20Sopenharmony_ci# define rgmii_detach(x,y) do { } while(0) 718c2ecf20Sopenharmony_ci# define rgmii_get_mdio(o,i) do { } while (0) 728c2ecf20Sopenharmony_ci# define rgmii_put_mdio(o,i) do { } while (0) 738c2ecf20Sopenharmony_ci# define rgmii_set_speed(x,y,z) do { } while(0) 748c2ecf20Sopenharmony_ci# define rgmii_get_regs_len(x) 0 758c2ecf20Sopenharmony_ci# define rgmii_dump_regs(x,buf) (buf) 768c2ecf20Sopenharmony_ci#endif /* !CONFIG_IBM_EMAC_RGMII */ 778c2ecf20Sopenharmony_ci 788c2ecf20Sopenharmony_ci#endif /* __IBM_NEWEMAC_RGMII_H */ 79