cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rgmii.h (2198B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * drivers/net/ethernet/ibm/emac/rgmii.h
      4 *
      5 * Driver for PowerPC 4xx on-chip ethernet controller, RGMII 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 * Based on ocp_zmii.h/ibm_emac_zmii.h
     13 * Armin Kuster akuster@mvista.com
     14 *
     15 * Copyright 2004 MontaVista Software, Inc.
     16 * Matt Porter <mporter@kernel.crashing.org>
     17 *
     18 * Copyright (c) 2004, 2005 Zultys Technologies.
     19 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
     20 */
     21
     22#ifndef __IBM_NEWEMAC_RGMII_H
     23#define __IBM_NEWEMAC_RGMII_H
     24
     25/* RGMII bridge type */
     26#define RGMII_STANDARD		0
     27#define RGMII_AXON		1
     28
     29/* RGMII bridge */
     30struct rgmii_regs {
     31	u32 fer;		/* Function enable register */
     32	u32 ssr;		/* Speed select register */
     33};
     34
     35/* RGMII device */
     36struct rgmii_instance {
     37	struct rgmii_regs __iomem	*base;
     38
     39	/* RGMII bridge flags */
     40	int				flags;
     41#define EMAC_RGMII_FLAG_HAS_MDIO	0x00000001
     42
     43	/* Only one EMAC whacks us at a time */
     44	struct mutex			lock;
     45
     46	/* number of EMACs using this RGMII bridge */
     47	int				users;
     48
     49	/* OF device instance */
     50	struct platform_device		*ofdev;
     51};
     52
     53#ifdef CONFIG_IBM_EMAC_RGMII
     54
     55int rgmii_init(void);
     56void rgmii_exit(void);
     57int rgmii_attach(struct platform_device *ofdev, int input, int mode);
     58void rgmii_detach(struct platform_device *ofdev, int input);
     59void rgmii_get_mdio(struct platform_device *ofdev, int input);
     60void rgmii_put_mdio(struct platform_device *ofdev, int input);
     61void rgmii_set_speed(struct platform_device *ofdev, int input, int speed);
     62int rgmii_get_regs_len(struct platform_device *ofdev);
     63void *rgmii_dump_regs(struct platform_device *ofdev, void *buf);
     64
     65#else
     66
     67# define rgmii_init()		0
     68# define rgmii_exit()		do { } while(0)
     69# define rgmii_attach(x,y,z)	(-ENXIO)
     70# define rgmii_detach(x,y)	do { } while(0)
     71# define rgmii_get_mdio(o,i)	do { } while (0)
     72# define rgmii_put_mdio(o,i)	do { } while (0)
     73# define rgmii_set_speed(x,y,z)	do { } while(0)
     74# define rgmii_get_regs_len(x)	0
     75# define rgmii_dump_regs(x,buf)	(buf)
     76#endif				/* !CONFIG_IBM_EMAC_RGMII */
     77
     78#endif /* __IBM_NEWEMAC_RGMII_H */