1 /*
2  * Copyright 2008-2013 Freescale Semiconductor Inc.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *     * Redistributions of source code must retain the above copyright
7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above copyright
9  *       notice, this list of conditions and the following disclaimer in the
10  *       documentation and/or other materials provided with the distribution.
11  *     * Neither the name of Freescale Semiconductor nor the
12  *       names of its contributors may be used to endorse or promote products
13  *       derived from this software without specific prior written permission.
14  *
15  *
16  * ALTERNATIVELY, this software may be distributed under the terms of the
17  * GNU General Public License ("GPL") as published by the Free Software
18  * Foundation, either version 2 of that License or (at your option) any
19  * later version.
20  *
21  * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef __FSL_FMAN_DTSEC_MII_ACC_H
34 #define __FSL_FMAN_DTSEC_MII_ACC_H
35 
36 #include "common/general.h"
37 
38 
39 /* MII Management Configuration Register */
40 #define MIIMCFG_RESET_MGMT		0x80000000
41 #define MIIMCFG_MGNTCLK_MASK		0x00000007
42 #define MIIMCFG_MGNTCLK_SHIFT		0
43 
44 /* MII  Management Command Register */
45 #define MIIMCOM_SCAN_CYCLE		0x00000002
46 #define MIIMCOM_READ_CYCLE		0x00000001
47 
48 /* MII  Management Address Register */
49 #define MIIMADD_PHY_ADDR_SHIFT		8
50 #define MIIMADD_PHY_ADDR_MASK		0x00001f00
51 
52 #define MIIMADD_REG_ADDR_SHIFT		0
53 #define MIIMADD_REG_ADDR_MASK		0x0000001f
54 
55 /* MII Management Indicator Register */
56 #define MIIMIND_BUSY			0x00000001
57 
58 
59 /* PHY Control Register */
60 #define PHY_CR_PHY_RESET    0x8000
61 #define PHY_CR_LOOPBACK     0x4000
62 #define PHY_CR_SPEED0       0x2000
63 #define PHY_CR_ANE          0x1000
64 #define PHY_CR_RESET_AN     0x0200
65 #define PHY_CR_FULLDUPLEX   0x0100
66 #define PHY_CR_SPEED1       0x0040
67 
68 #define PHY_TBICON_SRESET   0x8000
69 #define PHY_TBICON_SPEED2   0x0020
70 #define PHY_TBICON_CLK_SEL  0x0020
71 #define PHY_TBIANA_SGMII    0x4001
72 #define PHY_TBIANA_1000X    0x01a0
73 /* register map */
74 
75 /* MII Configuration Control Memory Map Registers */
76 struct dtsec_mii_reg {
77 	uint32_t reserved1[72];
78 	uint32_t miimcfg;	/* MII Mgmt:configuration */
79 	uint32_t miimcom;	/* MII Mgmt:command       */
80 	uint32_t miimadd;	/* MII Mgmt:address       */
81 	uint32_t miimcon;	/* MII Mgmt:control 3     */
82 	uint32_t miimstat;	/* MII Mgmt:status        */
83 	uint32_t miimind;	/* MII Mgmt:indicators    */
84 };
85 
86 /* dTSEC MII API */
87 
88 /* functions to access the mii registers for phy configuration.
89  * this functionality may not be available for all dtsecs in the system.
90  * consult the reference manual for details */
91 void fman_dtsec_mii_reset(struct dtsec_mii_reg *regs);
92 /* frequency is in MHz.
93  * note that dtsec clock is 1/2 of fman clock */
94 void fman_dtsec_mii_init(struct dtsec_mii_reg *regs, uint16_t dtsec_freq);
95 int fman_dtsec_mii_write_reg(struct dtsec_mii_reg *regs,
96 			uint8_t addr,
97 			uint8_t reg,
98 			uint16_t data,
99 			uint16_t dtsec_freq);
100 
101 int fman_dtsec_mii_read_reg(struct dtsec_mii_reg *regs,
102 			uint8_t addr,
103 			uint8_t reg,
104 			uint16_t *data,
105 			uint16_t dtsec_freq);
106 
107 #endif /* __FSL_FMAN_DTSEC_MII_ACC_H */
108