1 /*
2 * Freescale PowerQUICC MDIO Driver -- MII Management Bus Implementation
3 * Driver for the MDIO bus controller on Freescale PowerQUICC processors
4 *
5 * Author: Andy Fleming
6 *
7 * Copyright (c) 2002-2004,2008 Freescale Semiconductor, Inc.
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 */
15 #ifndef __FSL_PQ_MDIO_H
16 #define __FSL_PQ_MDIO_H
17
18 #define MIIMIND_BUSY 0x00000001
19 #define MIIMIND_NOTVALID 0x00000004
20 #define MIIMCFG_INIT_VALUE 0x00000007
21 #define MIIMCFG_RESET 0x80000000
22
23 #define MII_READ_COMMAND 0x00000001
24
25 struct fsl_pq_mdio {
26 u32 miimcfg; /* MII management configuration reg */
27 u32 miimcom; /* MII management command reg */
28 u32 miimadd; /* MII management address reg */
29 u32 miimcon; /* MII management control reg */
30 u32 miimstat; /* MII management status reg */
31 u32 miimind; /* MII management indication reg */
32 u8 reserved[28]; /* Space holder */
33 u32 utbipar; /* TBI phy address reg (only on UCC) */
34 } __attribute__ ((packed));
35
36
37 int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
38 int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
39 int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
40 int regnum, u16 value);
41 int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
42 int __init fsl_pq_mdio_init(void);
43 void fsl_pq_mdio_exit(void);
44 void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
45 #endif /* FSL_PQ_MDIO_H */
46
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