cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

zmii.h (2103B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * drivers/net/ethernet/ibm/emac/zmii.h
      4 *
      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 by
     16 *      Armin Kuster <akuster@mvista.com>
     17 * 	Copyright 2001 MontaVista Softare Inc.
     18 */
     19#ifndef __IBM_NEWEMAC_ZMII_H
     20#define __IBM_NEWEMAC_ZMII_H
     21
     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_ZMII
     50
     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#else
     63# define zmii_init()		0
     64# 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)	0
     71# define zmii_dump_regs(x,buf)	(buf)
     72#endif				/* !CONFIG_IBM_EMAC_ZMII */
     73
     74#endif /* __IBM_NEWEMAC_ZMII_H */