projects / mirror_ubuntu-eoan-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 1d3bb996 | 2 | /* |
| 3396c782 | 3 | * drivers/net/ethernet/ibm/emac/tah.h |
| 1d3bb996 DG |
4 | * |
| 5 | * Driver for PowerPC 4xx on-chip ethernet controller, TAH 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 | * Copyright 2004 MontaVista Software, Inc. |
| 13 | * Matt Porter <mporter@kernel.crashing.org> | |
| 14 | * | |
| 15 | * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net> | |
| 1d3bb996 DG |
16 | */ |
| 17 | ||
| 18 | #ifndef __IBM_NEWEMAC_TAH_H | |
| 19 | #define __IBM_NEWEMAC_TAH_H | |
| 20 | ||
| 21 | /* TAH */ | |
| 22 | struct tah_regs { | |
| 23 | u32 revid; | |
| 24 | u32 pad[3]; | |
| 25 | u32 mr; | |
| 26 | u32 ssr0; | |
| 27 | u32 ssr1; | |
| 28 | u32 ssr2; | |
| 29 | u32 ssr3; | |
| 30 | u32 ssr4; | |
| 31 | u32 ssr5; | |
| 32 | u32 tsr; | |
| 33 | }; | |
| 34 | ||
| 35 | ||
| 36 | /* TAH device */ | |
| 37 | struct tah_instance { | |
| 38 | struct tah_regs __iomem *base; | |
| 39 | ||
| 40 | /* Only one EMAC whacks us at a time */ | |
| 41 | struct mutex lock; | |
| 42 | ||
| 43 | /* number of EMACs using this TAH */ | |
| 44 | int users; | |
| 45 | ||
| 46 | /* OF device instance */ | |
| 2dc11581 | 47 | struct platform_device *ofdev; |
| 1d3bb996 DG |
48 | }; |
| 49 | ||
| 50 | ||
| 51 | /* TAH engine */ | |
| 52 | #define TAH_MR_CVR 0x80000000 | |
| 53 | #define TAH_MR_SR 0x40000000 | |
| 54 | #define TAH_MR_ST_256 0x01000000 | |
| 55 | #define TAH_MR_ST_512 0x02000000 | |
| 56 | #define TAH_MR_ST_768 0x03000000 | |
| 57 | #define TAH_MR_ST_1024 0x04000000 | |
| 58 | #define TAH_MR_ST_1280 0x05000000 | |
| 59 | #define TAH_MR_ST_1536 0x06000000 | |
| 60 | #define TAH_MR_TFS_16KB 0x00000000 | |
| 61 | #define TAH_MR_TFS_2KB 0x00200000 | |
| 62 | #define TAH_MR_TFS_4KB 0x00400000 | |
| 63 | #define TAH_MR_TFS_6KB 0x00600000 | |
| 64 | #define TAH_MR_TFS_8KB 0x00800000 | |
| 65 | #define TAH_MR_TFS_10KB 0x00a00000 | |
| 66 | #define TAH_MR_DTFP 0x00100000 | |
| 67 | #define TAH_MR_DIG 0x00080000 | |
| 68 | ||
| 3b3bceef | 69 | #ifdef CONFIG_IBM_EMAC_TAH |
| 1d3bb996 | 70 | |
| d4cb2ee1 JP |
71 | int tah_init(void); |
| 72 | void tah_exit(void); | |
| 73 | int tah_attach(struct platform_device *ofdev, int channel); | |
| 74 | void tah_detach(struct platform_device *ofdev, int channel); | |
| 75 | void tah_reset(struct platform_device *ofdev); | |
| 76 | int tah_get_regs_len(struct platform_device *ofdev); | |
| 77 | void *tah_dump_regs(struct platform_device *ofdev, void *buf); | |
| 1d3bb996 DG |
78 | |
| 79 | #else | |
| 80 | ||
| 81 | # define tah_init() 0 | |
| 82 | # define tah_exit() do { } while(0) | |
| 83 | # define tah_attach(x,y) (-ENXIO) | |
| 84 | # define tah_detach(x,y) do { } while(0) | |
| 85 | # define tah_reset(x) do { } while(0) | |
| 86 | # define tah_get_regs_len(x) 0 | |
| 87 | # define tah_dump_regs(x,buf) (buf) | |
| 88 | ||
| 3b3bceef | 89 | #endif /* !CONFIG_IBM_EMAC_TAH */ |
| 1d3bb996 DG |
90 | |
| 91 | #endif /* __IBM_NEWEMAC_TAH_H */ |