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- /* 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.
- * <[email protected]>
- *
- * Based on the arch/ppc version of the driver:
- *
- * Based on ocp_zmii.h/ibm_emac_zmii.h
- * Armin Kuster [email protected]
- *
- * Copyright 2004 MontaVista Software, Inc.
- * Matt Porter <[email protected]>
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <[email protected]> or <[email protected]>
- */
- #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 */
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