diff options
Diffstat (limited to 'drivers/net/ibm_newemac/zmii.h')
| -rw-r--r-- | drivers/net/ibm_newemac/zmii.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/net/ibm_newemac/zmii.h b/drivers/net/ibm_newemac/zmii.h new file mode 100644 index 00000000000..1333fa2b278 --- /dev/null +++ b/drivers/net/ibm_newemac/zmii.h | |||
| @@ -0,0 +1,78 @@ | |||
| 1 | /* | ||
| 2 | * drivers/net/ibm_newemac/zmii.h | ||
| 3 | * | ||
| 4 | * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support. | ||
| 5 | * | ||
| 6 | * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. | ||
| 7 | * <benh@kernel.crashing.org> | ||
| 8 | * | ||
| 9 | * Based on the arch/ppc version of the driver: | ||
| 10 | * | ||
| 11 | * Copyright (c) 2004, 2005 Zultys Technologies. | ||
| 12 | * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> | ||
| 13 | * | ||
| 14 | * Based on original work by | ||
| 15 | * Armin Kuster <akuster@mvista.com> | ||
| 16 | * Copyright 2001 MontaVista Softare Inc. | ||
| 17 | * | ||
| 18 | * This program is free software; you can redistribute it and/or modify it | ||
| 19 | * under the terms of the GNU General Public License as published by the | ||
| 20 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 21 | * option) any later version. | ||
| 22 | * | ||
| 23 | */ | ||
| 24 | #ifndef __IBM_NEWEMAC_ZMII_H | ||
| 25 | #define __IBM_NEWEMAC_ZMII_H | ||
| 26 | |||
| 27 | /* ZMII bridge registers */ | ||
| 28 | struct zmii_regs { | ||
| 29 | u32 fer; /* Function enable reg */ | ||
| 30 | u32 ssr; /* Speed select reg */ | ||
| 31 | u32 smiirs; /* SMII status reg */ | ||
| 32 | }; | ||
| 33 | |||
| 34 | /* ZMII device */ | ||
| 35 | struct zmii_instance { | ||
| 36 | struct zmii_regs __iomem *base; | ||
| 37 | |||
| 38 | /* Only one EMAC whacks us at a time */ | ||
| 39 | struct mutex lock; | ||
| 40 | |||
| 41 | /* subset of PHY_MODE_XXXX */ | ||
| 42 | int mode; | ||
| 43 | |||
| 44 | /* number of EMACs using this ZMII bridge */ | ||
| 45 | int users; | ||
| 46 | |||
| 47 | /* FER value left by firmware */ | ||
| 48 | u32 fer_save; | ||
| 49 | |||
| 50 | /* OF device instance */ | ||
| 51 | struct platform_device *ofdev; | ||
| 52 | }; | ||
| 53 | |||
| 54 | #ifdef CONFIG_IBM_NEW_EMAC_ZMII | ||
| 55 | |||
| 56 | extern int zmii_init(void); | ||
| 57 | extern void zmii_exit(void); | ||
| 58 | extern int zmii_attach(struct platform_device *ofdev, int input, int *mode); | ||
| 59 | extern void zmii_detach(struct platform_device *ofdev, int input); | ||
| 60 | extern void zmii_get_mdio(struct platform_device *ofdev, int input); | ||
| 61 | extern void zmii_put_mdio(struct platform_device *ofdev, int input); | ||
| 62 | extern void zmii_set_speed(struct platform_device *ofdev, int input, int speed); | ||
| 63 | extern int zmii_get_regs_len(struct platform_device *ocpdev); | ||
| 64 | extern void *zmii_dump_regs(struct platform_device *ofdev, void *buf); | ||
| 65 | |||
| 66 | #else | ||
| 67 | # define zmii_init() 0 | ||
| 68 | # define zmii_exit() do { } while(0) | ||
| 69 | # define zmii_attach(x,y,z) (-ENXIO) | ||
| 70 | # define zmii_detach(x,y) do { } while(0) | ||
| 71 | # define zmii_get_mdio(x,y) do { } while(0) | ||
| 72 | # define zmii_put_mdio(x,y) do { } while(0) | ||
| 73 | # define zmii_set_speed(x,y,z) do { } while(0) | ||
| 74 | # define zmii_get_regs_len(x) 0 | ||
| 75 | # define zmii_dump_regs(x,buf) (buf) | ||
| 76 | #endif /* !CONFIG_IBM_NEW_EMAC_ZMII */ | ||
| 77 | |||
| 78 | #endif /* __IBM_NEWEMAC_ZMII_H */ | ||