79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||
|
|
/*
|
||
|
|
* drivers/net/ethernet/ibm/emac/rgmii.h
|
||
|
|
*
|
||
|
|
* Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
|
||
|
|
*
|
||
|
|
* Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
|
||
|
|
* <benh@kernel.crashing.org>
|
||
|
|
*
|
||
|
|
* Based on the arch/ppc version of the driver:
|
||
|
|
*
|
||
|
|
* Based on ocp_zmii.h/ibm_emac_zmii.h
|
||
|
|
* Armin Kuster akuster@mvista.com
|
||
|
|
*
|
||
|
|
* Copyright 2004 MontaVista Software, Inc.
|
||
|
|
* Matt Porter <mporter@kernel.crashing.org>
|
||
|
|
*
|
||
|
|
* Copyright (c) 2004, 2005 Zultys Technologies.
|
||
|
|
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __IBM_NEWEMAC_RGMII_H
|
||
|
|
#define __IBM_NEWEMAC_RGMII_H
|
||
|
|
|
||
|
|
/* RGMII bridge type */
|
||
|
|
#define RGMII_STANDARD 0
|
||
|
|
#define RGMII_AXON 1
|
||
|
|
|
||
|
|
/* RGMII bridge */
|
||
|
|
struct rgmii_regs {
|
||
|
|
u32 fer; /* Function enable register */
|
||
|
|
u32 ssr; /* Speed select register */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* RGMII device */
|
||
|
|
struct rgmii_instance {
|
||
|
|
struct rgmii_regs __iomem *base;
|
||
|
|
|
||
|
|
/* RGMII bridge flags */
|
||
|
|
int flags;
|
||
|
|
#define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001
|
||
|
|
|
||
|
|
/* Only one EMAC whacks us at a time */
|
||
|
|
struct mutex lock;
|
||
|
|
|
||
|
|
/* number of EMACs using this RGMII bridge */
|
||
|
|
int users;
|
||
|
|
|
||
|
|
/* OF device instance */
|
||
|
|
struct platform_device *ofdev;
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef CONFIG_IBM_EMAC_RGMII
|
||
|
|
|
||
|
|
int rgmii_init(void);
|
||
|
|
void rgmii_exit(void);
|
||
|
|
int rgmii_attach(struct platform_device *ofdev, int input, int mode);
|
||
|
|
void rgmii_detach(struct platform_device *ofdev, int input);
|
||
|
|
void rgmii_get_mdio(struct platform_device *ofdev, int input);
|
||
|
|
void rgmii_put_mdio(struct platform_device *ofdev, int input);
|
||
|
|
void rgmii_set_speed(struct platform_device *ofdev, int input, int speed);
|
||
|
|
int rgmii_get_regs_len(struct platform_device *ofdev);
|
||
|
|
void *rgmii_dump_regs(struct platform_device *ofdev, void *buf);
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
# define rgmii_init() 0
|
||
|
|
# define rgmii_exit() do { } while(0)
|
||
|
|
# define rgmii_attach(x,y,z) (-ENXIO)
|
||
|
|
# define rgmii_detach(x,y) do { } while(0)
|
||
|
|
# define rgmii_get_mdio(o,i) do { } while (0)
|
||
|
|
# define rgmii_put_mdio(o,i) do { } while (0)
|
||
|
|
# define rgmii_set_speed(x,y,z) do { } while(0)
|
||
|
|
# define rgmii_get_regs_len(x) 0
|
||
|
|
# define rgmii_dump_regs(x,buf) (buf)
|
||
|
|
#endif /* !CONFIG_IBM_EMAC_RGMII */
|
||
|
|
|
||
|
|
#endif /* __IBM_NEWEMAC_RGMII_H */
|