Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * tsi108/109 device setup code
3 *
4 * Maintained by Roy Zang < tie-fei.zang@freescale.com >
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 */
11
12#include <linux/stddef.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/errno.h>
16#include <linux/major.h>
17#include <linux/delay.h>
18#include <linux/irq.h>
19#include <linux/module.h>
20#include <linux/device.h>
21#include <linux/platform_device.h>
22#include <asm/tsi108.h>
23
24#include <asm/system.h>
25#include <asm/atomic.h>
26#include <asm/io.h>
27#include <asm/irq.h>
28#include <asm/prom.h>
29#include <mm/mmu_decl.h>
30
31#undef DEBUG
32
33#ifdef DEBUG
34#define DBG(fmt...) do { printk(fmt); } while(0)
35#else
36#define DBG(fmt...) do { } while(0)
37#endif
38
39static phys_addr_t tsi108_csr_base = -1;
40
41phys_addr_t get_csrbase(void)
42{
43 struct device_node *tsi;
44
45 if (tsi108_csr_base != -1)
46 return tsi108_csr_base;
47
48 tsi = of_find_node_by_type(NULL, "tsi-bridge");
49 if (tsi) {
50 unsigned int size;
51 const void *prop = get_property(tsi, "reg", &size);
52 tsi108_csr_base = of_translate_address(tsi, prop);
53 of_node_put(tsi);
54 };
55 return tsi108_csr_base;
56}
57
58u32 get_vir_csrbase(void)
59{
60 return (u32) (ioremap(get_csrbase(), 0x10000));
61}
62
63EXPORT_SYMBOL(get_csrbase);
64EXPORT_SYMBOL(get_vir_csrbase);
65
66static int __init tsi108_eth_of_init(void)
67{
68 struct device_node *np;
69 unsigned int i;
70 struct platform_device *tsi_eth_dev;
71 struct resource res;
72 int ret;
73
74 for (np = NULL, i = 0;
75 (np = of_find_compatible_node(np, "network", "tsi-ethernet")) != NULL;
76 i++) {
77 struct resource r[2];
78 struct device_node *phy;
79 hw_info tsi_eth_data;
80 unsigned int *id;
81 unsigned int *phy_id;
82 const void *mac_addr;
83 phandle *ph;
84
85 memset(r, 0, sizeof(r));
86 memset(&tsi_eth_data, 0, sizeof(tsi_eth_data));
87
88 ret = of_address_to_resource(np, 0, &r[0]);
89 DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
90 __FUNCTION__,r[0].name, r[0].start, r[0].end);
91 if (ret)
92 goto err;
93
94 r[1].name = "tx";
95 r[1].start = irq_of_parse_and_map(np, 0);
96 r[1].end = irq_of_parse_and_map(np, 0);
97 r[1].flags = IORESOURCE_IRQ;
98 DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
99 __FUNCTION__,r[1].name, r[1].start, r[1].end);
100
101 tsi_eth_dev =
102 platform_device_register_simple("tsi-ethernet", i, &r[0],
103 1);
104
105 if (IS_ERR(tsi_eth_dev)) {
106 ret = PTR_ERR(tsi_eth_dev);
107 goto err;
108 }
109
110 mac_addr = get_property(np, "address", NULL);
111 memcpy(tsi_eth_data.mac_addr, mac_addr, 6);
112
113 ph = (phandle *) get_property(np, "phy-handle", NULL);
114 phy = of_find_node_by_phandle(*ph);
115
116 if (phy == NULL) {
117 ret = -ENODEV;
118 goto unreg;
119 }
120
121 id = (u32 *) get_property(phy, "reg", NULL);
122 phy_id = (u32 *) get_property(phy, "phy-id", NULL);
123 ret = of_address_to_resource(phy, 0, &res);
124 if (ret) {
125 of_node_put(phy);
126 goto unreg;
127 }
128 tsi_eth_data.regs = r[0].start;
129 tsi_eth_data.phyregs = res.start;
130 tsi_eth_data.phy = *phy_id;
131 tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
132 of_node_put(phy);
133 ret =
134 platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
135 sizeof(hw_info));
136 if (ret)
137 goto unreg;
138 }
139 return 0;
140unreg:
141 platform_device_unregister(tsi_eth_dev);
142err:
143 return ret;
144}
145
146arch_initcall(tsi108_eth_of_init);