X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fnet%2Fethernet%2Fibm%2Femac%2Fzmii.h;fp=kernel%2Fdrivers%2Fnet%2Fethernet%2Fibm%2Femac%2Fzmii.h;h=0959c55b14591dc7f2d58b1946585eeb0da04d68;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/net/ethernet/ibm/emac/zmii.h b/kernel/drivers/net/ethernet/ibm/emac/zmii.h
new file mode 100644
index 000000000..0959c55b1
--- /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 */