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1 | /* |
2 | * Copyright 2009-2011 Freescale Semiconductor, Inc. | |
3 | * Dave Liu <daveliu@freescale.com> | |
4 | * | |
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. | |
9 | * | |
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. | |
14 | * | |
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, | |
18 | * MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | /* MAXFRM - maximum frame length */ | |
22 | #define MAXFRM_MASK 0x0000ffff | |
23 | ||
24 | #include <common.h> | |
25 | #include <phy.h> | |
26 | #include <asm/types.h> | |
27 | #include <asm/io.h> | |
28 | #include <asm/fsl_enet.h> | |
29 | #include <asm/fsl_tgec.h> | |
30 | ||
31 | #include "fm.h" | |
32 | ||
33 | #define TGEC_CMD_CFG_INIT (TGEC_CMD_CFG_NO_LEN_CHK | \ | |
34 | TGEC_CMD_CFG_RX_ER_DISC | \ | |
35 | TGEC_CMD_CFG_STAT_CLR | \ | |
36 | TGEC_CMD_CFG_PAUSE_IGNORE | \ | |
37 | TGEC_CMD_CFG_CRC_FWD) | |
38 | #define TGEC_CMD_CFG_FINAL (TGEC_CMD_CFG_NO_LEN_CHK | \ | |
39 | TGEC_CMD_CFG_RX_ER_DISC | \ | |
40 | TGEC_CMD_CFG_PAUSE_IGNORE | \ | |
41 | TGEC_CMD_CFG_CRC_FWD) | |
42 | ||
43 | static void tgec_init_mac(struct fsl_enet_mac *mac) | |
44 | { | |
45 | struct tgec *regs = mac->base; | |
46 | ||
47 | /* mask all interrupt */ | |
48 | out_be32(®s->imask, IMASK_MASK_ALL); | |
49 | ||
50 | /* clear all events */ | |
51 | out_be32(®s->ievent, IEVENT_CLEAR_ALL); | |
52 | ||
53 | /* set the max receive length */ | |
54 | out_be32(®s->maxfrm, mac->max_rx_len & MAXFRM_MASK); | |
55 | ||
56 | /* | |
57 | * 1588 disable, insert second mac disable payload length check | |
58 | * disable, normal operation, any rx error frame is discarded, clear | |
59 | * counters, pause frame ignore, no promiscuous, LAN mode Rx CRC no | |
60 | * strip, Tx CRC append, Rx disable and Tx disable | |
61 | */ | |
62 | out_be32(®s->command_config, TGEC_CMD_CFG_INIT); | |
63 | udelay(1000); | |
64 | out_be32(®s->command_config, TGEC_CMD_CFG_FINAL); | |
65 | ||
66 | /* multicast frame reception for the hash entry disable */ | |
67 | out_be32(®s->hashtable_ctrl, 0); | |
68 | } | |
69 | ||
70 | static void tgec_enable_mac(struct fsl_enet_mac *mac) | |
71 | { | |
72 | struct tgec *regs = mac->base; | |
73 | ||
74 | setbits_be32(®s->command_config, TGEC_CMD_CFG_RXTX_EN); | |
75 | } | |
76 | ||
77 | static void tgec_disable_mac(struct fsl_enet_mac *mac) | |
78 | { | |
79 | struct tgec *regs = mac->base; | |
80 | ||
81 | clrbits_be32(®s->command_config, TGEC_CMD_CFG_RXTX_EN); | |
82 | } | |
83 | ||
84 | static void tgec_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr) | |
85 | { | |
86 | struct tgec *regs = mac->base; | |
87 | u32 mac_addr0, mac_addr1; | |
88 | ||
89 | /* | |
90 | * if a station address of 0x12345678ABCD, perform a write to | |
91 | * MAC_ADDR0 of 0x78563412, MAC_ADDR1 of 0x0000CDAB | |
92 | */ | |
93 | mac_addr0 = (mac_addr[3] << 24) | (mac_addr[2] << 16) | \ | |
94 | (mac_addr[1] << 8) | (mac_addr[0]); | |
95 | out_be32(®s->mac_addr_0, mac_addr0); | |
96 | ||
97 | mac_addr1 = ((mac_addr[5] << 8) | mac_addr[4]) & 0x0000ffff; | |
98 | out_be32(®s->mac_addr_1, mac_addr1); | |
99 | } | |
100 | ||
101 | static void tgec_set_interface_mode(struct fsl_enet_mac *mac, | |
102 | phy_interface_t type, int speed) | |
103 | { | |
104 | /* nothing right now */ | |
105 | return; | |
106 | } | |
107 | ||
108 | void init_tgec(struct fsl_enet_mac *mac, void *base, | |
109 | void *phyregs, int max_rx_len) | |
110 | { | |
111 | mac->base = base; | |
112 | mac->phyregs = phyregs; | |
113 | mac->max_rx_len = max_rx_len; | |
114 | mac->init_mac = tgec_init_mac; | |
115 | mac->enable_mac = tgec_enable_mac; | |
116 | mac->disable_mac = tgec_disable_mac; | |
117 | mac->set_mac_addr = tgec_set_mac_addr; | |
118 | mac->set_if_mode = tgec_set_interface_mode; | |
119 | } |