| /* |
| * drivers/net/ibm_newemac/tah.h |
| * |
| * Driver for PowerPC 4xx on-chip ethernet controller, TAH support. |
| * |
| * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. |
| * <benh@kernel.crashing.org> |
| * |
| * Based on the arch/ppc version of the driver: |
| * |
| * Copyright 2004 MontaVista Software, Inc. |
| * Matt Porter <mporter@kernel.crashing.org> |
| * |
| * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| |
| #ifndef __IBM_NEWEMAC_TAH_H |
| #define __IBM_NEWEMAC_TAH_H |
| |
| /* TAH */ |
| struct tah_regs { |
| u32 revid; |
| u32 pad[3]; |
| u32 mr; |
| u32 ssr0; |
| u32 ssr1; |
| u32 ssr2; |
| u32 ssr3; |
| u32 ssr4; |
| u32 ssr5; |
| u32 tsr; |
| }; |
| |
| |
| /* TAH device */ |
| struct tah_instance { |
| struct tah_regs __iomem *base; |
| |
| /* Only one EMAC whacks us at a time */ |
| struct mutex lock; |
| |
| /* number of EMACs using this TAH */ |
| int users; |
| |
| /* OF device instance */ |
| struct platform_device *ofdev; |
| }; |
| |
| |
| /* TAH engine */ |
| #define TAH_MR_CVR 0x80000000 |
| #define TAH_MR_SR 0x40000000 |
| #define TAH_MR_ST_256 0x01000000 |
| #define TAH_MR_ST_512 0x02000000 |
| #define TAH_MR_ST_768 0x03000000 |
| #define TAH_MR_ST_1024 0x04000000 |
| #define TAH_MR_ST_1280 0x05000000 |
| #define TAH_MR_ST_1536 0x06000000 |
| #define TAH_MR_TFS_16KB 0x00000000 |
| #define TAH_MR_TFS_2KB 0x00200000 |
| #define TAH_MR_TFS_4KB 0x00400000 |
| #define TAH_MR_TFS_6KB 0x00600000 |
| #define TAH_MR_TFS_8KB 0x00800000 |
| #define TAH_MR_TFS_10KB 0x00a00000 |
| #define TAH_MR_DTFP 0x00100000 |
| #define TAH_MR_DIG 0x00080000 |
| |
| #ifdef CONFIG_IBM_EMAC_TAH |
| |
| extern int tah_init(void); |
| extern void tah_exit(void); |
| extern int tah_attach(struct platform_device *ofdev, int channel); |
| extern void tah_detach(struct platform_device *ofdev, int channel); |
| extern void tah_reset(struct platform_device *ofdev); |
| extern int tah_get_regs_len(struct platform_device *ofdev); |
| extern void *tah_dump_regs(struct platform_device *ofdev, void *buf); |
| |
| #else |
| |
| # define tah_init() 0 |
| # define tah_exit() do { } while(0) |
| # define tah_attach(x,y) (-ENXIO) |
| # define tah_detach(x,y) do { } while(0) |
| # define tah_reset(x) do { } while(0) |
| # define tah_get_regs_len(x) 0 |
| # define tah_dump_regs(x,buf) (buf) |
| |
| #endif /* !CONFIG_IBM_EMAC_TAH */ |
| |
| #endif /* __IBM_NEWEMAC_TAH_H */ |
