1/*************************************************************************
2Copyright (c) 2003-2007 Cavium Networks (support@cavium.com). All rights
3reserved.
4
5
6Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions are
8met:
9
10 * Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12
13 * Redistributions in binary form must reproduce the above
14 copyright notice, this list of conditions and the following
15 disclaimer in the documentation and/or other materials provided
16 with the distribution.
17
18 * Neither the name of Cavium Networks nor the names of
19 its contributors may be used to endorse or promote products
20 derived from this software without specific prior written
21 permission.
22
23This Software, including technical data, may be subject to U.S. export control laws, including the U.S. Export Administration Act and its associated regulations, and may be subject to export or import regulations in other countries.
24
25TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
26AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
27
28*************************************************************************/
29
30#include <sys/cdefs.h>
| 1/*************************************************************************
2Copyright (c) 2003-2007 Cavium Networks (support@cavium.com). All rights
3reserved.
4
5
6Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions are
8met:
9
10 * Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12
13 * Redistributions in binary form must reproduce the above
14 copyright notice, this list of conditions and the following
15 disclaimer in the documentation and/or other materials provided
16 with the distribution.
17
18 * Neither the name of Cavium Networks nor the names of
19 its contributors may be used to endorse or promote products
20 derived from this software without specific prior written
21 permission.
22
23This Software, including technical data, may be subject to U.S. export control laws, including the U.S. Export Administration Act and its associated regulations, and may be subject to export or import regulations in other countries.
24
25TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
26AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
27
28*************************************************************************/
29
30#include <sys/cdefs.h>
|
31__FBSDID("$FreeBSD: head/sys/mips/cavium/octe/ethernet-mdio.c 213762 2010-10-13 09:17:44Z jmallett $");
| 31__FBSDID("$FreeBSD: head/sys/mips/cavium/octe/ethernet-mdio.c 215974 2010-11-28 05:57:24Z jmallett $");
|
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/bus.h>
36#include <sys/endian.h>
37#include <sys/kernel.h>
38#include <sys/mbuf.h>
39#include <sys/socket.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42
43#include <net/ethernet.h>
44#include <net/if.h>
45
46#include "wrapper-cvmx-includes.h"
47#include "ethernet-headers.h"
48
49struct mtx cvm_oct_mdio_mtx;
50MTX_SYSINIT(cvm_oct_mdio, &cvm_oct_mdio_mtx, "MDIO", MTX_DEF);
51
52/**
53 * Perform an MII read. Called by the generic MII routines
54 *
55 * @param dev Device to perform read for
56 * @param phy_id The MII phy id
57 * @param location Register location to read
58 * @return Result from the read or zero on failure
59 */
60int cvm_oct_mdio_read(struct ifnet *ifp, int phy_id, int location)
61{
62 cvmx_smi_cmd_t smi_cmd;
63 cvmx_smi_rd_dat_t smi_rd;
64
65 MDIO_LOCK();
66 smi_cmd.u64 = 0;
67 smi_cmd.s.phy_op = 1;
68 smi_cmd.s.phy_adr = phy_id;
69 smi_cmd.s.reg_adr = location;
70 cvmx_write_csr(CVMX_SMI_CMD, smi_cmd.u64);
71
72 do {
| 32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/bus.h>
36#include <sys/endian.h>
37#include <sys/kernel.h>
38#include <sys/mbuf.h>
39#include <sys/socket.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42
43#include <net/ethernet.h>
44#include <net/if.h>
45
46#include "wrapper-cvmx-includes.h"
47#include "ethernet-headers.h"
48
49struct mtx cvm_oct_mdio_mtx;
50MTX_SYSINIT(cvm_oct_mdio, &cvm_oct_mdio_mtx, "MDIO", MTX_DEF);
51
52/**
53 * Perform an MII read. Called by the generic MII routines
54 *
55 * @param dev Device to perform read for
56 * @param phy_id The MII phy id
57 * @param location Register location to read
58 * @return Result from the read or zero on failure
59 */
60int cvm_oct_mdio_read(struct ifnet *ifp, int phy_id, int location)
61{
62 cvmx_smi_cmd_t smi_cmd;
63 cvmx_smi_rd_dat_t smi_rd;
64
65 MDIO_LOCK();
66 smi_cmd.u64 = 0;
67 smi_cmd.s.phy_op = 1;
68 smi_cmd.s.phy_adr = phy_id;
69 smi_cmd.s.reg_adr = location;
70 cvmx_write_csr(CVMX_SMI_CMD, smi_cmd.u64);
71
72 do {
|
73#if 0
74 if (!in_interrupt())
75 yield();
76#endif
| |
77 smi_rd.u64 = cvmx_read_csr(CVMX_SMI_RD_DAT);
78 } while (smi_rd.s.pending);
79
80 MDIO_UNLOCK();
81
82 if (smi_rd.s.val)
83 return smi_rd.s.dat;
84 else
85 return 0;
86}
87
88
89/**
90 * Perform an MII write. Called by the generic MII routines
91 *
92 * @param dev Device to perform write for
93 * @param phy_id The MII phy id
94 * @param location Register location to write
95 * @param val Value to write
96 */
97void cvm_oct_mdio_write(struct ifnet *ifp, int phy_id, int location, int val)
98{
99 cvmx_smi_cmd_t smi_cmd;
100 cvmx_smi_wr_dat_t smi_wr;
101
102 MDIO_LOCK();
103 smi_wr.u64 = 0;
104 smi_wr.s.dat = val;
105 cvmx_write_csr(CVMX_SMI_WR_DAT, smi_wr.u64);
106
107 smi_cmd.u64 = 0;
108 smi_cmd.s.phy_op = 0;
109 smi_cmd.s.phy_adr = phy_id;
110 smi_cmd.s.reg_adr = location;
111 cvmx_write_csr(CVMX_SMI_CMD, smi_cmd.u64);
112
113 do {
| 73 smi_rd.u64 = cvmx_read_csr(CVMX_SMI_RD_DAT);
74 } while (smi_rd.s.pending);
75
76 MDIO_UNLOCK();
77
78 if (smi_rd.s.val)
79 return smi_rd.s.dat;
80 else
81 return 0;
82}
83
84
85/**
86 * Perform an MII write. Called by the generic MII routines
87 *
88 * @param dev Device to perform write for
89 * @param phy_id The MII phy id
90 * @param location Register location to write
91 * @param val Value to write
92 */
93void cvm_oct_mdio_write(struct ifnet *ifp, int phy_id, int location, int val)
94{
95 cvmx_smi_cmd_t smi_cmd;
96 cvmx_smi_wr_dat_t smi_wr;
97
98 MDIO_LOCK();
99 smi_wr.u64 = 0;
100 smi_wr.s.dat = val;
101 cvmx_write_csr(CVMX_SMI_WR_DAT, smi_wr.u64);
102
103 smi_cmd.u64 = 0;
104 smi_cmd.s.phy_op = 0;
105 smi_cmd.s.phy_adr = phy_id;
106 smi_cmd.s.reg_adr = location;
107 cvmx_write_csr(CVMX_SMI_CMD, smi_cmd.u64);
108
109 do {
|
114#if 0
115 if (!in_interrupt())
116 yield();
117#endif
| |
118 smi_wr.u64 = cvmx_read_csr(CVMX_SMI_WR_DAT);
119 } while (smi_wr.s.pending);
120 MDIO_UNLOCK();
121}
122
123/**
124 * Setup the MDIO device structures
125 *
126 * @param dev Device to setup
127 *
128 * @return Zero on success, negative on failure
129 */
130int cvm_oct_mdio_setup_device(struct ifnet *ifp)
131{
132 cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
133
134 priv->phy_id = cvmx_helper_board_get_mii_address(priv->port);
135 priv->phy_device = NULL;
136 priv->mdio_read = NULL;
137 priv->mdio_write = NULL;
138
139 return 0;
140}
141
| 110 smi_wr.u64 = cvmx_read_csr(CVMX_SMI_WR_DAT);
111 } while (smi_wr.s.pending);
112 MDIO_UNLOCK();
113}
114
115/**
116 * Setup the MDIO device structures
117 *
118 * @param dev Device to setup
119 *
120 * @return Zero on success, negative on failure
121 */
122int cvm_oct_mdio_setup_device(struct ifnet *ifp)
123{
124 cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
125
126 priv->phy_id = cvmx_helper_board_get_mii_address(priv->port);
127 priv->phy_device = NULL;
128 priv->mdio_read = NULL;
129 priv->mdio_write = NULL;
130
131 return 0;
132}
133
|