12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 29aa32835SJeff Kirsher /* 33396c782SPaul Gortmaker * drivers/net/ethernet/ibm/emac/rgmii.h 49aa32835SJeff Kirsher * 59aa32835SJeff Kirsher * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. 69aa32835SJeff Kirsher * 79aa32835SJeff Kirsher * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. 89aa32835SJeff Kirsher * <benh@kernel.crashing.org> 99aa32835SJeff Kirsher * 109aa32835SJeff Kirsher * Based on the arch/ppc version of the driver: 119aa32835SJeff Kirsher * 129aa32835SJeff Kirsher * Based on ocp_zmii.h/ibm_emac_zmii.h 139aa32835SJeff Kirsher * Armin Kuster akuster@mvista.com 149aa32835SJeff Kirsher * 159aa32835SJeff Kirsher * Copyright 2004 MontaVista Software, Inc. 169aa32835SJeff Kirsher * Matt Porter <mporter@kernel.crashing.org> 179aa32835SJeff Kirsher * 189aa32835SJeff Kirsher * Copyright (c) 2004, 2005 Zultys Technologies. 199aa32835SJeff Kirsher * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> 209aa32835SJeff Kirsher */ 219aa32835SJeff Kirsher 229aa32835SJeff Kirsher #ifndef __IBM_NEWEMAC_RGMII_H 239aa32835SJeff Kirsher #define __IBM_NEWEMAC_RGMII_H 249aa32835SJeff Kirsher 259aa32835SJeff Kirsher /* RGMII bridge type */ 269aa32835SJeff Kirsher #define RGMII_STANDARD 0 279aa32835SJeff Kirsher #define RGMII_AXON 1 289aa32835SJeff Kirsher 299aa32835SJeff Kirsher /* RGMII bridge */ 309aa32835SJeff Kirsher struct rgmii_regs { 319aa32835SJeff Kirsher u32 fer; /* Function enable register */ 329aa32835SJeff Kirsher u32 ssr; /* Speed select register */ 339aa32835SJeff Kirsher }; 349aa32835SJeff Kirsher 359aa32835SJeff Kirsher /* RGMII device */ 369aa32835SJeff Kirsher struct rgmii_instance { 379aa32835SJeff Kirsher struct rgmii_regs __iomem *base; 389aa32835SJeff Kirsher 399aa32835SJeff Kirsher /* RGMII bridge flags */ 409aa32835SJeff Kirsher int flags; 419aa32835SJeff Kirsher #define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001 429aa32835SJeff Kirsher 439aa32835SJeff Kirsher /* Only one EMAC whacks us at a time */ 449aa32835SJeff Kirsher struct mutex lock; 459aa32835SJeff Kirsher 469aa32835SJeff Kirsher /* number of EMACs using this RGMII bridge */ 479aa32835SJeff Kirsher int users; 489aa32835SJeff Kirsher 499aa32835SJeff Kirsher /* OF device instance */ 509aa32835SJeff Kirsher struct platform_device *ofdev; 519aa32835SJeff Kirsher }; 529aa32835SJeff Kirsher 533b3bceefSTony Breeds #ifdef CONFIG_IBM_EMAC_RGMII 549aa32835SJeff Kirsher 55d4cb2ee1SJoe Perches int rgmii_init(void); 56d4cb2ee1SJoe Perches void rgmii_exit(void); 57d4cb2ee1SJoe Perches int rgmii_attach(struct platform_device *ofdev, int input, int mode); 58d4cb2ee1SJoe Perches void rgmii_detach(struct platform_device *ofdev, int input); 59d4cb2ee1SJoe Perches void rgmii_get_mdio(struct platform_device *ofdev, int input); 60d4cb2ee1SJoe Perches void rgmii_put_mdio(struct platform_device *ofdev, int input); 61d4cb2ee1SJoe Perches void rgmii_set_speed(struct platform_device *ofdev, int input, int speed); 62d4cb2ee1SJoe Perches int rgmii_get_regs_len(struct platform_device *ofdev); 63d4cb2ee1SJoe Perches void *rgmii_dump_regs(struct platform_device *ofdev, void *buf); 649aa32835SJeff Kirsher 659aa32835SJeff Kirsher #else 669aa32835SJeff Kirsher 679aa32835SJeff Kirsher # define rgmii_init() 0 689aa32835SJeff Kirsher # define rgmii_exit() do { } while(0) 699aa32835SJeff Kirsher # define rgmii_attach(x,y,z) (-ENXIO) 709aa32835SJeff Kirsher # define rgmii_detach(x,y) do { } while(0) 719aa32835SJeff Kirsher # define rgmii_get_mdio(o,i) do { } while (0) 729aa32835SJeff Kirsher # define rgmii_put_mdio(o,i) do { } while (0) 739aa32835SJeff Kirsher # define rgmii_set_speed(x,y,z) do { } while(0) 749aa32835SJeff Kirsher # define rgmii_get_regs_len(x) 0 759aa32835SJeff Kirsher # define rgmii_dump_regs(x,buf) (buf) 763b3bceefSTony Breeds #endif /* !CONFIG_IBM_EMAC_RGMII */ 779aa32835SJeff Kirsher 789aa32835SJeff Kirsher #endif /* __IBM_NEWEMAC_RGMII_H */ 79