2 * Copyright 2012 Freescale Semiconductor, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 /* MAXFRM - maximum frame length */
22 #define MAXFRM_MASK 0x0000ffff
26 #include <asm/types.h>
28 #include <asm/fsl_enet.h>
29 #include <asm/fsl_memac.h>
33 static void memac_init_mac(struct fsl_enet_mac *mac)
35 struct memac *regs = mac->base;
37 /* mask all interrupt */
38 out_be32(®s->imask, IMASK_MASK_ALL);
40 /* clear all events */
41 out_be32(®s->ievent, IEVENT_CLEAR_ALL);
43 /* set the max receive length */
44 out_be32(®s->maxfrm, mac->max_rx_len & MAXFRM_MASK);
46 /* multicast frame reception for the hash entry disable */
47 out_be32(®s->hashtable_ctrl, 0);
50 static void memac_enable_mac(struct fsl_enet_mac *mac)
52 struct memac *regs = mac->base;
54 setbits_be32(®s->command_config, MEMAC_CMD_CFG_RXTX_EN);
57 static void memac_disable_mac(struct fsl_enet_mac *mac)
59 struct memac *regs = mac->base;
61 clrbits_be32(®s->command_config, MEMAC_CMD_CFG_RXTX_EN);
64 static void memac_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr)
66 struct memac *regs = mac->base;
67 u32 mac_addr0, mac_addr1;
70 * if a station address of 0x12345678ABCD, perform a write to
71 * MAC_ADDR0 of 0x78563412, MAC_ADDR1 of 0x0000CDAB
73 mac_addr0 = (mac_addr[3] << 24) | (mac_addr[2] << 16) | \
74 (mac_addr[1] << 8) | (mac_addr[0]);
75 out_be32(®s->mac_addr_0, mac_addr0);
77 mac_addr1 = ((mac_addr[5] << 8) | mac_addr[4]) & 0x0000ffff;
78 out_be32(®s->mac_addr_1, mac_addr1);
81 static void memac_set_interface_mode(struct fsl_enet_mac *mac,
82 phy_interface_t type, int speed)
84 /* Roy need more work here */
86 struct memac *regs = mac->base;
87 u32 if_mode, if_status;
89 /* clear all bits relative with interface mode */
90 if_mode = in_be32(®s->if_mode);
91 if_status = in_be32(®s->if_status);
93 /* set interface mode */
95 case PHY_INTERFACE_MODE_GMII:
96 if_mode &= ~IF_MODE_MASK;
97 if_mode |= IF_MODE_GMII;
99 case PHY_INTERFACE_MODE_RGMII:
100 if_mode |= (IF_MODE_GMII | IF_MODE_RG);
102 case PHY_INTERFACE_MODE_RMII:
103 if_mode |= (IF_MODE_GMII | IF_MODE_RM);
105 case PHY_INTERFACE_MODE_SGMII:
106 if_mode &= ~IF_MODE_MASK;
107 if_mode |= (IF_MODE_GMII);
112 /* Enable automatic speed selection */
113 if_mode |= IF_MODE_EN_AUTO;
115 if (type == PHY_INTERFACE_MODE_RGMII) {
116 if_mode &= ~IF_MODE_EN_AUTO;
117 if_mode &= ~IF_MODE_SETSP_MASK;
120 if_mode |= IF_MODE_SETSP_1000M;
123 if_mode |= IF_MODE_SETSP_100M;
126 if_mode |= IF_MODE_SETSP_10M;
132 debug(" %s, if_mode = %x\n", __func__, if_mode);
133 debug(" %s, if_status = %x\n", __func__, if_status);
134 out_be32(®s->if_mode, if_mode);
138 void init_memac(struct fsl_enet_mac *mac, void *base,
139 void *phyregs, int max_rx_len)
142 mac->phyregs = phyregs;
143 mac->max_rx_len = max_rx_len;
144 mac->init_mac = memac_init_mac;
145 mac->enable_mac = memac_enable_mac;
146 mac->disable_mac = memac_disable_mac;
147 mac->set_mac_addr = memac_set_mac_addr;
148 mac->set_if_mode = memac_set_interface_mode;