1 // SPDX-License-Identifier: GPL-2.0-or-later 1
2 /*
3 * tsi108/109 device setup code
4 *
5 * Maintained by Roy Zang < tie-fei.zang@frees
6 */
7
8 #include <linux/stddef.h>
9 #include <linux/kernel.h>
10 #include <linux/init.h>
11 #include <linux/errno.h>
12 #include <linux/major.h>
13 #include <linux/delay.h>
14 #include <linux/irq.h>
15 #include <linux/export.h>
16 #include <linux/device.h>
17 #include <linux/etherdevice.h>
18 #include <linux/platform_device.h>
19 #include <linux/of_address.h>
20 #include <linux/of_irq.h>
21 #include <linux/of_net.h>
22 #include <asm/tsi108.h>
23
24 #include <linux/atomic.h>
25 #include <asm/io.h>
26 #include <asm/irq.h>
27 #include <mm/mmu_decl.h>
28
29 #undef DEBUG
30
31 #ifdef DEBUG
32 #define DBG(fmt...) do { printk(fmt); } while(
33 #else
34 #define DBG(fmt...) do { } while(0)
35 #endif
36
37 static phys_addr_t tsi108_csr_base = -1;
38
39 phys_addr_t get_csrbase(void)
40 {
41 struct device_node *tsi;
42
43 if (tsi108_csr_base != -1)
44 return tsi108_csr_base;
45
46 tsi = of_find_node_by_type(NULL, "tsi-
47 if (tsi) {
48 struct resource res;
49 of_address_to_resource(tsi, 0,
50 tsi108_csr_base = res.start;
51 of_node_put(tsi);
52 }
53 return tsi108_csr_base;
54 }
55 EXPORT_SYMBOL(get_csrbase);
56
57 u32 get_vir_csrbase(void)
58 {
59 return (u32) (ioremap(get_csrbase(), 0
60 }
61 EXPORT_SYMBOL(get_vir_csrbase);
62
63 static int __init tsi108_eth_of_init(void)
64 {
65 struct device_node *np;
66 unsigned int i = 0;
67 struct platform_device *tsi_eth_dev;
68 struct resource res;
69 int ret;
70
71 for_each_compatible_node(np, "network"
72 struct resource r[2];
73 struct device_node *phy, *mdio
74 hw_info tsi_eth_data;
75 const unsigned int *phy_id;
76 const phandle *ph;
77
78 memset(r, 0, sizeof(r));
79 memset(&tsi_eth_data, 0, sizeo
80
81 ret = of_address_to_resource(n
82 DBG("%s: name:start->end = %s:
83 __func__, r[0].name, &r[0]
84 if (ret)
85 goto err;
86
87 r[1].name = "tx";
88 r[1].start = irq_of_parse_and_
89 r[1].end = irq_of_parse_and_ma
90 r[1].flags = IORESOURCE_IRQ;
91 DBG("%s: name:start->end = %s:
92 __func__, r[1].name, &
93
94 tsi_eth_dev =
95 platform_device_register_s
96
97
98 if (IS_ERR(tsi_eth_dev)) {
99 ret = PTR_ERR(tsi_eth_
100 goto err;
101 }
102
103 of_get_mac_address(np, tsi_eth
104
105 ph = of_get_property(np, "mdio
106 mdio = of_find_node_by_phandle
107 ret = of_address_to_resource(m
108 of_node_put(mdio);
109 if (ret)
110 goto unreg;
111
112 ph = of_get_property(np, "phy-
113 phy = of_find_node_by_phandle(
114
115 if (phy == NULL) {
116 ret = -ENODEV;
117 goto unreg;
118 }
119
120 phy_id = of_get_property(phy,
121
122 tsi_eth_data.regs = r[0].start
123 tsi_eth_data.phyregs = res.sta
124 tsi_eth_data.phy = *phy_id;
125 tsi_eth_data.irq_num = irq_of_
126
127 /* Some boards with the TSI108
128 * have a miswiring of the eth
129 * requires a workaround. The
130 * "txc-rxc-delay-disable" pro
131 * workaround. FIXME: Need to
132 * driver itself to phylib and
133 * name for the workaround fla
134 * do with the model of PHY in
135 if (of_property_read_bool(phy,
136 tsi_eth_data.phy_type
137 of_node_put(phy);
138
139 ret =
140 platform_device_add_data(t
141 s
142 if (ret)
143 goto unreg;
144 }
145 return 0;
146 unreg:
147 platform_device_unregister(tsi_eth_dev
148 err:
149 of_node_put(np);
150 return ret;
151 }
152
153 arch_initcall(tsi108_eth_of_init);
154
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