Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / ethernet / ibm / emac / zmii.h

diff --git a/kernel/drivers/net/ethernet/ibm/emac/zmii.h b/kernel/drivers/net/ethernet/ibm/emac/zmii.h
new file mode 100644 (file)
index 0000000..0959c55
--- /dev/null
+++ b/kernel/drivers/net/ethernet/ibm/emac/zmii.h
@@ -0,0 +1,78 @@
+/*
+ * drivers/net/ethernet/ibm/emac/zmii.h
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
+ *
+ * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
+ *                <benh@kernel.crashing.org>
+ *
+ * Based on the arch/ppc version of the driver:
+ *
+ * Copyright (c) 2004, 2005 Zultys Technologies.
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ *
+ * Based on original work by
+ *      Armin Kuster <akuster@mvista.com>
+ *     Copyright 2001 MontaVista Softare Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef __IBM_NEWEMAC_ZMII_H
+#define __IBM_NEWEMAC_ZMII_H
+
+/* ZMII bridge registers */
+struct zmii_regs {
+       u32 fer;                /* Function enable reg */
+       u32 ssr;                /* Speed select reg */
+       u32 smiirs;             /* SMII status reg */
+};
+
+/* ZMII device */
+struct zmii_instance {
+       struct zmii_regs __iomem        *base;
+
+       /* Only one EMAC whacks us at a time */
+       struct mutex                    lock;
+
+       /* subset of PHY_MODE_XXXX */
+       int                             mode;
+
+       /* number of EMACs using this ZMII bridge */
+       int                             users;
+
+       /* FER value left by firmware */
+       u32                             fer_save;
+
+       /* OF device instance */
+       struct platform_device          *ofdev;
+};
+
+#ifdef CONFIG_IBM_EMAC_ZMII
+
+int zmii_init(void);
+void zmii_exit(void);
+int zmii_attach(struct platform_device *ofdev, int input, int *mode);
+void zmii_detach(struct platform_device *ofdev, int input);
+void zmii_get_mdio(struct platform_device *ofdev, int input);
+void zmii_put_mdio(struct platform_device *ofdev, int input);
+void zmii_set_speed(struct platform_device *ofdev, int input, int speed);
+int zmii_get_regs_len(struct platform_device *ocpdev);
+void *zmii_dump_regs(struct platform_device *ofdev, void *buf);
+
+#else
+# define zmii_init()           0
+# define zmii_exit()           do { } while(0)
+# define zmii_attach(x,y,z)    (-ENXIO)
+# define zmii_detach(x,y)      do { } while(0)
+# define zmii_get_mdio(x,y)    do { } while(0)
+# define zmii_put_mdio(x,y)    do { } while(0)
+# define zmii_set_speed(x,y,z) do { } while(0)
+# define zmii_get_regs_len(x)  0
+# define zmii_dump_regs(x,buf) (buf)
+#endif                         /* !CONFIG_IBM_EMAC_ZMII */
+
+#endif /* __IBM_NEWEMAC_ZMII_H */