brintos

brintos / linux-shallow public Read only

0
0
Text · 2.1 KiB · 65daedc Raw
75 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * drivers/net/ethernet/ibm/emac/zmii.h4 *5 * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.6 *7 * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.8 *                <benh@kernel.crashing.org>9 *10 * Based on the arch/ppc version of the driver:11 *12 * Copyright (c) 2004, 2005 Zultys Technologies.13 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>14 *15 * Based on original work by16 *      Armin Kuster <akuster@mvista.com>17 * 	Copyright 2001 MontaVista Softare Inc.18 */19#ifndef __IBM_NEWEMAC_ZMII_H20#define __IBM_NEWEMAC_ZMII_H21 22/* ZMII bridge registers */23struct zmii_regs {24	u32 fer;		/* Function enable reg */25	u32 ssr;		/* Speed select reg */26	u32 smiirs;		/* SMII status reg */27};28 29/* ZMII device */30struct zmii_instance {31	struct zmii_regs __iomem	*base;32 33	/* Only one EMAC whacks us at a time */34	struct mutex			lock;35 36	/* subset of PHY_MODE_XXXX */37	int				mode;38 39	/* number of EMACs using this ZMII bridge */40	int				users;41 42	/* FER value left by firmware */43	u32				fer_save;44 45	/* OF device instance */46	struct platform_device		*ofdev;47};48 49#ifdef CONFIG_IBM_EMAC_ZMII50 51int zmii_init(void);52void zmii_exit(void);53int zmii_attach(struct platform_device *ofdev, int input,54		phy_interface_t *mode);55void zmii_detach(struct platform_device *ofdev, int input);56void zmii_get_mdio(struct platform_device *ofdev, int input);57void zmii_put_mdio(struct platform_device *ofdev, int input);58void zmii_set_speed(struct platform_device *ofdev, int input, int speed);59int zmii_get_regs_len(struct platform_device *ocpdev);60void *zmii_dump_regs(struct platform_device *ofdev, void *buf);61 62#else63# define zmii_init()		064# define zmii_exit()		do { } while(0)65# define zmii_attach(x,y,z)	(-ENXIO)66# define zmii_detach(x,y)	do { } while(0)67# define zmii_get_mdio(x,y)	do { } while(0)68# define zmii_put_mdio(x,y)	do { } while(0)69# define zmii_set_speed(x,y,z)	do { } while(0)70# define zmii_get_regs_len(x)	071# define zmii_dump_regs(x,buf)	(buf)72#endif				/* !CONFIG_IBM_EMAC_ZMII */73 74#endif /* __IBM_NEWEMAC_ZMII_H */75