1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*
* tsi108/109 device setup code
*
* Maintained by Roy Zang < tie-fei.zang@freescale.com >
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <asm/tsi108.h>
#include <asm/system.h>
#include <asm/atomic.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/prom.h>
#include <mm/mmu_decl.h>
#undef DEBUG
#ifdef DEBUG
#define DBG(fmt...) do { printk(fmt); } while(0)
#else
#define DBG(fmt...) do { } while(0)
#endif
static phys_addr_t tsi108_csr_base = -1;
phys_addr_t get_csrbase(void)
{
struct device_node *tsi;
if (tsi108_csr_base != -1)
return tsi108_csr_base;
tsi = of_find_node_by_type(NULL, "tsi-bridge");
if (tsi) {
unsigned int size;
const void *prop = of_get_property(tsi, "reg", &size);
tsi108_csr_base = of_translate_address(tsi, prop);
of_node_put(tsi);
};
return tsi108_csr_base;
}
u32 get_vir_csrbase(void)
{
return (u32) (ioremap(get_csrbase(), 0x10000));
}
EXPORT_SYMBOL(get_csrbase);
EXPORT_SYMBOL(get_vir_csrbase);
static int __init tsi108_eth_of_init(void)
{
struct device_node *np;
unsigned int i = 0;
struct platform_device *tsi_eth_dev;
struct resource res;
int ret;
for_each_compatible_node(np, "network", "tsi108-ethernet") {
struct resource r[2];
struct device_node *phy, *mdio;
hw_info tsi_eth_data;
const unsigned int *phy_id;
const void *mac_addr;
const phandle *ph;
memset(r, 0, sizeof(r));
memset(&tsi_eth_data, 0, sizeof(tsi_eth_data));
ret = of_address_to_resource(np, 0, &r[0]);
DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
__func__,r[0].name, r[0].start, r[0].end);
if (ret)
goto err;
r[1].name = "tx";
r[1].start = irq_of_parse_and_map(np, 0);
r[1].end = irq_of_parse_and_map(np, 0);
r[1].flags = IORESOURCE_IRQ;
DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
__func__,r[1].name, r[1].start, r[1].end);
tsi_eth_dev =
platform_device_register_simple("tsi-ethernet", i++, &r[0],
1);
if (IS_ERR(tsi_eth_dev)) {
ret = PTR_ERR(tsi_eth_dev);
goto err;
}
mac_addr = of_get_mac_address(np);
if (mac_addr)
memcpy(tsi_eth_data.mac_addr, mac_addr, 6);
ph = of_get_property(np, "mdio-handle", NULL);
mdio = of_find_node_by_phandle(*ph);
ret = of_address_to_resource(mdio, 0, &res);
of_node_put(mdio);
if (ret)
goto unreg;
ph = of_get_property(np, "phy-handle", NULL);
phy = of_find_node_by_phandle(*ph);
if (phy == NULL) {
ret = -ENODEV;
goto unreg;
}
phy_id = of_get_property(phy, "reg", NULL);
tsi_eth_data.regs = r[0].start;
tsi_eth_data.phyregs = res.start;
tsi_eth_data.phy = *phy_id;
tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
/* Some boards with the TSI108 bridge (e.g. Holly)
* have a miswiring of the ethernet PHYs which
* requires a workaround. The special
* "txc-rxc-delay-disable" property enables this
* workaround. FIXME: Need to port the tsi108_eth
* driver itself to phylib and use a non-misleading
* name for the workaround flag - it's not actually to
* do with the model of PHY in use */
if (of_get_property(phy, "txc-rxc-delay-disable", NULL))
tsi_eth_data.phy_type = TSI108_PHY_BCM54XX;
of_node_put(phy);
ret =
platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
sizeof(hw_info));
if (ret)
goto unreg;
}
return 0;
unreg:
platform_device_unregister(tsi_eth_dev);
err:
of_node_put(np);
return ret;
}
arch_initcall(tsi108_eth_of_init);
|
