projects / mirror_ubuntu-kernels.git / blame
| Commit | Line | Data |
|---|---|---|
| 2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 1d3bb996 | 2 | /* |
| 3396c782 | 3 | * drivers/net/ethernet/ibm/emac/rgmii.h |
| 1d3bb996 DG |
4 | * |
| 5 | * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support. | |
| 6 | * | |
| 17cf803a BH |
7 | * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. |
| 8 | * <benh@kernel.crashing.org> | |
| 9 | * | |
| 10 | * Based on the arch/ppc version of the driver: | |
| 11 | * | |
| 1d3bb996 DG |
12 | * Based on ocp_zmii.h/ibm_emac_zmii.h |
| 13 | * Armin Kuster akuster@mvista.com | |
| 14 | * | |
| 15 | * Copyright 2004 MontaVista Software, Inc. | |
| 16 | * Matt Porter <mporter@kernel.crashing.org> | |
| 17 | * | |
| 18 | * Copyright (c) 2004, 2005 Zultys Technologies. | |
| 19 | * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> | |
| 1d3bb996 DG |
20 | */ |
| 21 | ||
| 22 | #ifndef __IBM_NEWEMAC_RGMII_H | |
| 23 | #define __IBM_NEWEMAC_RGMII_H | |
| 24 | ||
| 25 | /* RGMII bridge type */ | |
| 26 | #define RGMII_STANDARD 0 | |
| 27 | #define RGMII_AXON 1 | |
| 28 | ||
| 29 | /* RGMII bridge */ | |
| 30 | struct rgmii_regs { | |
| 31 | u32 fer; /* Function enable register */ | |
| 32 | u32 ssr; /* Speed select register */ | |
| 33 | }; | |
| 34 | ||
| 35 | /* RGMII device */ | |
| 36 | struct rgmii_instance { | |
| 37 | struct rgmii_regs __iomem *base; | |
| 38 | ||
| 1f57877a BH |
39 | /* RGMII bridge flags */ |
| 40 | int flags; | |
| 41 | #define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001 | |
| 1d3bb996 DG |
42 | |
| 43 | /* Only one EMAC whacks us at a time */ | |
| 44 | struct mutex lock; | |
| 45 | ||
| 46 | /* number of EMACs using this RGMII bridge */ | |
| 47 | int users; | |
| 48 | ||
| 49 | /* OF device instance */ | |
| 2dc11581 | 50 | struct platform_device *ofdev; |
| 1d3bb996 DG |
51 | }; |
| 52 | ||
| 3b3bceef | 53 | #ifdef CONFIG_IBM_EMAC_RGMII |
| 1d3bb996 | 54 | |
| d4cb2ee1 JP |
55 | int rgmii_init(void); |
| 56 | void rgmii_exit(void); | |
| 57 | int rgmii_attach(struct platform_device *ofdev, int input, int mode); | |
| 58 | void rgmii_detach(struct platform_device *ofdev, int input); | |
| 59 | void rgmii_get_mdio(struct platform_device *ofdev, int input); | |
| 60 | void rgmii_put_mdio(struct platform_device *ofdev, int input); | |
| 61 | void rgmii_set_speed(struct platform_device *ofdev, int input, int speed); | |
| 62 | int rgmii_get_regs_len(struct platform_device *ofdev); | |
| 63 | void *rgmii_dump_regs(struct platform_device *ofdev, void *buf); | |
| 1d3bb996 DG |
64 | |
| 65 | #else | |
| 66 | ||
| 67 | # define rgmii_init() 0 | |
| 68 | # define rgmii_exit() do { } while(0) | |
| 69 | # define rgmii_attach(x,y,z) (-ENXIO) | |
| 70 | # define rgmii_detach(x,y) do { } while(0) | |
| 71 | # define rgmii_get_mdio(o,i) do { } while (0) | |
| 72 | # define rgmii_put_mdio(o,i) do { } while (0) | |
| 73 | # define rgmii_set_speed(x,y,z) do { } while(0) | |
| 74 | # define rgmii_get_regs_len(x) 0 | |
| 75 | # define rgmii_dump_regs(x,buf) (buf) | |
| 3b3bceef | 76 | #endif /* !CONFIG_IBM_EMAC_RGMII */ |
| 1d3bb996 DG |
77 | |
| 78 | #endif /* __IBM_NEWEMAC_RGMII_H */ |