diff options
Diffstat (limited to 'drivers/net/ethernet/ibm/emac/rgmii.h')
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/rgmii.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.h b/drivers/net/ethernet/ibm/emac/rgmii.h new file mode 100644 index 000000000..8e4e36eed --- /dev/null +++ b/drivers/net/ethernet/ibm/emac/rgmii.h @@ -0,0 +1,78 @@ +/* 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 */ |