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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * tsi108/109 device setup code
4 *
5 * Maintained by Roy Zang < tie-fei.zang@freescale.com >
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(0)
33#else
34#define DBG(fmt...) do { } while(0)
35#endif
36
37static phys_addr_t tsi108_csr_base = -1;
38
39phys_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-bridge");
47 if (tsi) {
48 struct resource res;
49 of_address_to_resource(tsi, 0, &res);
50 tsi108_csr_base = res.start;
51 of_node_put(tsi);
52 }
53 return tsi108_csr_base;
54}
55EXPORT_SYMBOL(get_csrbase);
56
57u32 get_vir_csrbase(void)
58{
59 return (u32) (ioremap(get_csrbase(), 0x10000));
60}
61EXPORT_SYMBOL(get_vir_csrbase);
62
63static 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", "tsi108-ethernet") {
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, sizeof(tsi_eth_data));
80
81 ret = of_address_to_resource(np, 0, &r[0]);
82 DBG("%s: name:start->end = %s:%pR\n",
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_map(np, 0);
89 r[1].end = irq_of_parse_and_map(np, 0);
90 r[1].flags = IORESOURCE_IRQ;
91 DBG("%s: name:start->end = %s:%pR\n",
92 __func__, r[1].name, &r[1]);
93
94 tsi_eth_dev =
95 platform_device_register_simple("tsi-ethernet", i++, &r[0],
96 1);
97
98 if (IS_ERR(tsi_eth_dev)) {
99 ret = PTR_ERR(tsi_eth_dev);
100 goto err;
101 }
102
103 of_get_mac_address(np, tsi_eth_data.mac_addr);
104
105 ph = of_get_property(np, "mdio-handle", NULL);
106 mdio = of_find_node_by_phandle(*ph);
107 ret = of_address_to_resource(mdio, 0, &res);
108 of_node_put(mdio);
109 if (ret)
110 goto unreg;
111
112 ph = of_get_property(np, "phy-handle", NULL);
113 phy = of_find_node_by_phandle(*ph);
114
115 if (phy == NULL) {
116 ret = -ENODEV;
117 goto unreg;
118 }
119
120 phy_id = of_get_property(phy, "reg", NULL);
121
122 tsi_eth_data.regs = r[0].start;
123 tsi_eth_data.phyregs = res.start;
124 tsi_eth_data.phy = *phy_id;
125 tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
126
127 /* Some boards with the TSI108 bridge (e.g. Holly)
128 * have a miswiring of the ethernet PHYs which
129 * requires a workaround. The special
130 * "txc-rxc-delay-disable" property enables this
131 * workaround. FIXME: Need to port the tsi108_eth
132 * driver itself to phylib and use a non-misleading
133 * name for the workaround flag - it's not actually to
134 * do with the model of PHY in use */
135 if (of_property_read_bool(phy, "txc-rxc-delay-disable"))
136 tsi_eth_data.phy_type = TSI108_PHY_BCM54XX;
137 of_node_put(phy);
138
139 ret =
140 platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
141 sizeof(hw_info));
142 if (ret)
143 goto unreg;
144 }
145 return 0;
146unreg:
147 platform_device_unregister(tsi_eth_dev);
148err:
149 of_node_put(np);
150 return ret;
151}
152
153arch_initcall(tsi108_eth_of_init);
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 <linux/of_net.h>
23#include <asm/tsi108.h>
24
25#include <asm/system.h>
26#include <linux/atomic.h>
27#include <asm/io.h>
28#include <asm/irq.h>
29#include <asm/prom.h>
30#include <mm/mmu_decl.h>
31
32#undef DEBUG
33
34#ifdef DEBUG
35#define DBG(fmt...) do { printk(fmt); } while(0)
36#else
37#define DBG(fmt...) do { } while(0)
38#endif
39
40static phys_addr_t tsi108_csr_base = -1;
41
42phys_addr_t get_csrbase(void)
43{
44 struct device_node *tsi;
45
46 if (tsi108_csr_base != -1)
47 return tsi108_csr_base;
48
49 tsi = of_find_node_by_type(NULL, "tsi-bridge");
50 if (tsi) {
51 unsigned int size;
52 const void *prop = of_get_property(tsi, "reg", &size);
53 tsi108_csr_base = of_translate_address(tsi, prop);
54 of_node_put(tsi);
55 };
56 return tsi108_csr_base;
57}
58
59u32 get_vir_csrbase(void)
60{
61 return (u32) (ioremap(get_csrbase(), 0x10000));
62}
63
64EXPORT_SYMBOL(get_csrbase);
65EXPORT_SYMBOL(get_vir_csrbase);
66
67static int __init tsi108_eth_of_init(void)
68{
69 struct device_node *np;
70 unsigned int i = 0;
71 struct platform_device *tsi_eth_dev;
72 struct resource res;
73 int ret;
74
75 for_each_compatible_node(np, "network", "tsi108-ethernet") {
76 struct resource r[2];
77 struct device_node *phy, *mdio;
78 hw_info tsi_eth_data;
79 const unsigned int *phy_id;
80 const void *mac_addr;
81 const phandle *ph;
82
83 memset(r, 0, sizeof(r));
84 memset(&tsi_eth_data, 0, sizeof(tsi_eth_data));
85
86 ret = of_address_to_resource(np, 0, &r[0]);
87 DBG("%s: name:start->end = %s:%pR\n",
88 __func__, r[0].name, &r[0]);
89 if (ret)
90 goto err;
91
92 r[1].name = "tx";
93 r[1].start = irq_of_parse_and_map(np, 0);
94 r[1].end = irq_of_parse_and_map(np, 0);
95 r[1].flags = IORESOURCE_IRQ;
96 DBG("%s: name:start->end = %s:%pR\n",
97 __func__, r[1].name, &r[1]);
98
99 tsi_eth_dev =
100 platform_device_register_simple("tsi-ethernet", i++, &r[0],
101 1);
102
103 if (IS_ERR(tsi_eth_dev)) {
104 ret = PTR_ERR(tsi_eth_dev);
105 goto err;
106 }
107
108 mac_addr = of_get_mac_address(np);
109 if (mac_addr)
110 memcpy(tsi_eth_data.mac_addr, mac_addr, 6);
111
112 ph = of_get_property(np, "mdio-handle", NULL);
113 mdio = of_find_node_by_phandle(*ph);
114 ret = of_address_to_resource(mdio, 0, &res);
115 of_node_put(mdio);
116 if (ret)
117 goto unreg;
118
119 ph = of_get_property(np, "phy-handle", NULL);
120 phy = of_find_node_by_phandle(*ph);
121
122 if (phy == NULL) {
123 ret = -ENODEV;
124 goto unreg;
125 }
126
127 phy_id = of_get_property(phy, "reg", NULL);
128
129 tsi_eth_data.regs = r[0].start;
130 tsi_eth_data.phyregs = res.start;
131 tsi_eth_data.phy = *phy_id;
132 tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
133
134 /* Some boards with the TSI108 bridge (e.g. Holly)
135 * have a miswiring of the ethernet PHYs which
136 * requires a workaround. The special
137 * "txc-rxc-delay-disable" property enables this
138 * workaround. FIXME: Need to port the tsi108_eth
139 * driver itself to phylib and use a non-misleading
140 * name for the workaround flag - it's not actually to
141 * do with the model of PHY in use */
142 if (of_get_property(phy, "txc-rxc-delay-disable", NULL))
143 tsi_eth_data.phy_type = TSI108_PHY_BCM54XX;
144 of_node_put(phy);
145
146 ret =
147 platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
148 sizeof(hw_info));
149 if (ret)
150 goto unreg;
151 }
152 return 0;
153unreg:
154 platform_device_unregister(tsi_eth_dev);
155err:
156 of_node_put(np);
157 return ret;
158}
159
160arch_initcall(tsi108_eth_of_init);