tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 * Modifier: Sandeep Gopalpet
7 *
8 * Copyright 2002-2004, 2008-2009 Freescale Semiconductor, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16#ifndef __FSL_PQ_MDIO_H
17#define __FSL_PQ_MDIO_H
18
19#define MIIMIND_BUSY 0x00000001
20#define MIIMIND_NOTVALID 0x00000004
21#define MIIMCFG_INIT_VALUE 0x00000007
22#define MIIMCFG_RESET 0x80000000
23
24#define MII_READ_COMMAND 0x00000001
25
26struct fsl_pq_mdio {
27 u8 res1[16];
28 u32 ieventm; /* MDIO Interrupt event register (for etsec2)*/
29 u32 imaskm; /* MDIO Interrupt mask register (for etsec2)*/
30 u8 res2[4];
31 u32 emapm; /* MDIO Event mapping register (for etsec2)*/
32 u8 res3[1280];
33 u32 miimcfg; /* MII management configuration reg */
34 u32 miimcom; /* MII management command reg */
35 u32 miimadd; /* MII management address reg */
36 u32 miimcon; /* MII management control reg */
37 u32 miimstat; /* MII management status reg */
38 u32 miimind; /* MII management indication reg */
39 u8 reserved[28]; /* Space holder */
40 u32 utbipar; /* TBI phy address reg (only on UCC) */
41 u8 res4[2728];
42} __packed;
43
44int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
45int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
46int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
47 int regnum, u16 value);
48int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
49int __init fsl_pq_mdio_init(void);
50void fsl_pq_mdio_exit(void);
51void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
52#endif /* FSL_PQ_MDIO_H */