Commit | Line | Data |
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eed32001 KG |
1 | /* |
2 | * FSL SoC setup code | |
3 | * | |
4 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) | |
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/config.h> | |
13 | #include <linux/stddef.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/major.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/irq.h> | |
20 | #include <linux/module.h> | |
21 | #include <linux/device.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/fsl_devices.h> | |
24 | ||
25 | #include <asm/system.h> | |
26 | #include <asm/atomic.h> | |
27 | #include <asm/io.h> | |
28 | #include <asm/irq.h> | |
29 | #include <asm/prom.h> | |
30 | #include <sysdev/fsl_soc.h> | |
31 | #include <mm/mmu_decl.h> | |
32 | ||
33 | static phys_addr_t immrbase = -1; | |
34 | ||
35 | phys_addr_t get_immrbase(void) | |
36 | { | |
37 | struct device_node *soc; | |
38 | ||
39 | if (immrbase != -1) | |
40 | return immrbase; | |
41 | ||
42 | soc = of_find_node_by_type(NULL, "soc"); | |
43 | if (soc != 0) { | |
44 | unsigned int size; | |
45 | void *prop = get_property(soc, "reg", &size); | |
46 | immrbase = of_translate_address(soc, prop); | |
47 | of_node_put(soc); | |
48 | }; | |
49 | ||
50 | return immrbase; | |
51 | } | |
52 | EXPORT_SYMBOL(get_immrbase); | |
53 | ||
54 | static const char * gfar_tx_intr = "tx"; | |
55 | static const char * gfar_rx_intr = "rx"; | |
56 | static const char * gfar_err_intr = "error"; | |
57 | ||
58 | static int __init gfar_of_init(void) | |
59 | { | |
60 | struct device_node *np; | |
61 | unsigned int i; | |
62 | struct platform_device *mdio_dev, *gfar_dev; | |
63 | struct resource res; | |
64 | int ret; | |
65 | ||
66 | for (np = NULL, i = 0; (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL; i++) { | |
67 | int k; | |
68 | struct device_node *child = NULL; | |
69 | struct gianfar_mdio_data mdio_data; | |
70 | ||
71 | memset(&res, 0, sizeof(res)); | |
72 | memset(&mdio_data, 0, sizeof(mdio_data)); | |
73 | ||
74 | ret = of_address_to_resource(np, 0, &res); | |
75 | if (ret) | |
76 | goto mdio_err; | |
77 | ||
78 | mdio_dev = platform_device_register_simple("fsl-gianfar_mdio", res.start, &res, 1); | |
79 | if (IS_ERR(mdio_dev)) { | |
80 | ret = PTR_ERR(mdio_dev); | |
81 | goto mdio_err; | |
82 | } | |
83 | ||
84 | for (k = 0; k < 32; k++) | |
85 | mdio_data.irq[k] = -1; | |
86 | ||
87 | while ((child = of_get_next_child(np, child)) != NULL) { | |
88 | if (child->n_intrs) { | |
89 | u32 *id = (u32 *) get_property(child, "reg", NULL); | |
90 | mdio_data.irq[*id] = child->intrs[0].line; | |
91 | } | |
92 | } | |
93 | ||
94 | ret = platform_device_add_data(mdio_dev, &mdio_data, sizeof(struct gianfar_mdio_data)); | |
95 | if (ret) | |
96 | goto mdio_unreg; | |
97 | } | |
98 | ||
99 | for (np = NULL, i = 0; (np = of_find_compatible_node(np, "network", "gianfar")) != NULL; i++) { | |
100 | struct resource r[4]; | |
101 | struct device_node *phy, *mdio; | |
102 | struct gianfar_platform_data gfar_data; | |
103 | unsigned int *id; | |
104 | char *model; | |
105 | void *mac_addr; | |
106 | phandle *ph; | |
107 | ||
108 | memset(r, 0, sizeof(r)); | |
109 | memset(&gfar_data, 0, sizeof(gfar_data)); | |
110 | ||
111 | ret = of_address_to_resource(np, 0, &r[0]); | |
112 | if (ret) | |
113 | goto gfar_err; | |
114 | ||
115 | r[1].start = np->intrs[0].line; | |
116 | r[1].end = np->intrs[0].line; | |
117 | r[1].flags = IORESOURCE_IRQ; | |
118 | ||
119 | model = get_property(np, "model", NULL); | |
120 | ||
121 | /* If we aren't the FEC we have multiple interrupts */ | |
122 | if (model && strcasecmp(model, "FEC")) { | |
123 | r[1].name = gfar_tx_intr; | |
124 | ||
125 | r[2].name = gfar_rx_intr; | |
126 | r[2].start = np->intrs[1].line; | |
127 | r[2].end = np->intrs[1].line; | |
128 | r[2].flags = IORESOURCE_IRQ; | |
129 | ||
130 | r[3].name = gfar_err_intr; | |
131 | r[3].start = np->intrs[2].line; | |
132 | r[3].end = np->intrs[2].line; | |
133 | r[3].flags = IORESOURCE_IRQ; | |
134 | } | |
135 | ||
136 | gfar_dev = platform_device_register_simple("fsl-gianfar", i, &r[0], np->n_intrs + 1); | |
137 | ||
138 | if (IS_ERR(gfar_dev)) { | |
139 | ret = PTR_ERR(gfar_dev); | |
140 | goto gfar_err; | |
141 | } | |
142 | ||
143 | mac_addr = get_property(np, "address", NULL); | |
144 | memcpy(gfar_data.mac_addr, mac_addr, 6); | |
145 | ||
146 | if (model && !strcasecmp(model, "TSEC")) | |
147 | gfar_data.device_flags = | |
148 | FSL_GIANFAR_DEV_HAS_GIGABIT | | |
149 | FSL_GIANFAR_DEV_HAS_COALESCE | | |
150 | FSL_GIANFAR_DEV_HAS_RMON | | |
151 | FSL_GIANFAR_DEV_HAS_MULTI_INTR; | |
152 | if (model && !strcasecmp(model, "eTSEC")) | |
153 | gfar_data.device_flags = | |
154 | FSL_GIANFAR_DEV_HAS_GIGABIT | | |
155 | FSL_GIANFAR_DEV_HAS_COALESCE | | |
156 | FSL_GIANFAR_DEV_HAS_RMON | | |
157 | FSL_GIANFAR_DEV_HAS_MULTI_INTR | | |
158 | FSL_GIANFAR_DEV_HAS_CSUM | | |
159 | FSL_GIANFAR_DEV_HAS_VLAN | | |
160 | FSL_GIANFAR_DEV_HAS_EXTENDED_HASH; | |
161 | ||
162 | ph = (phandle *) get_property(np, "phy-handle", NULL); | |
163 | phy = of_find_node_by_phandle(*ph); | |
164 | ||
165 | if (phy == NULL) { | |
166 | ret = -ENODEV; | |
167 | goto gfar_unreg; | |
168 | } | |
169 | ||
170 | mdio = of_get_parent(phy); | |
171 | ||
172 | id = (u32 *) get_property(phy, "reg", NULL); | |
173 | ret = of_address_to_resource(mdio, 0, &res); | |
174 | if (ret) { | |
175 | of_node_put(phy); | |
176 | of_node_put(mdio); | |
177 | goto gfar_unreg; | |
178 | } | |
179 | ||
180 | gfar_data.phy_id = *id; | |
181 | gfar_data.bus_id = res.start; | |
182 | ||
183 | of_node_put(phy); | |
184 | of_node_put(mdio); | |
185 | ||
186 | ret = platform_device_add_data(gfar_dev, &gfar_data, sizeof(struct gianfar_platform_data)); | |
187 | if (ret) | |
188 | goto gfar_unreg; | |
189 | } | |
190 | ||
191 | return 0; | |
192 | ||
193 | mdio_unreg: | |
194 | platform_device_unregister(mdio_dev); | |
195 | mdio_err: | |
196 | return ret; | |
197 | ||
198 | gfar_unreg: | |
199 | platform_device_unregister(gfar_dev); | |
200 | gfar_err: | |
201 | return ret; | |
202 | } | |
203 | arch_initcall(gfar_of_init); | |
204 | ||
205 | static int __init fsl_i2c_of_init(void) | |
206 | { | |
207 | struct device_node *np; | |
208 | unsigned int i; | |
209 | struct platform_device *i2c_dev; | |
210 | int ret; | |
211 | ||
212 | for (np = NULL, i = 0; (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL; i++) { | |
213 | struct resource r[2]; | |
214 | struct fsl_i2c_platform_data i2c_data; | |
215 | unsigned char * flags = NULL; | |
216 | ||
217 | memset(&r, 0, sizeof(r)); | |
218 | memset(&i2c_data, 0, sizeof(i2c_data)); | |
219 | ||
220 | ret = of_address_to_resource(np, 0, &r[0]); | |
221 | if (ret) | |
222 | goto i2c_err; | |
223 | ||
224 | r[1].start = np->intrs[0].line; | |
225 | r[1].end = np->intrs[0].line; | |
226 | r[1].flags = IORESOURCE_IRQ; | |
227 | ||
228 | i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2); | |
229 | if (IS_ERR(i2c_dev)) { | |
230 | ret = PTR_ERR(i2c_dev); | |
231 | goto i2c_err; | |
232 | } | |
233 | ||
234 | i2c_data.device_flags = 0; | |
235 | flags = get_property(np, "dfsrr", NULL); | |
236 | if (flags) | |
237 | i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR; | |
238 | ||
239 | flags = get_property(np, "fsl5200-clocking", NULL); | |
240 | if (flags) | |
241 | i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200; | |
242 | ||
243 | ret = platform_device_add_data(i2c_dev, &i2c_data, sizeof(struct fsl_i2c_platform_data)); | |
244 | if (ret) | |
245 | goto i2c_unreg; | |
246 | } | |
247 | ||
248 | return 0; | |
249 | ||
250 | i2c_unreg: | |
251 | platform_device_unregister(i2c_dev); | |
252 | i2c_err: | |
253 | return ret; | |
254 | } | |
255 | arch_initcall(fsl_i2c_of_init); | |
256 | ||
257 | #ifdef CONFIG_PPC_83xx | |
258 | static int __init mpc83xx_wdt_init(void) | |
259 | { | |
260 | struct resource r; | |
261 | struct device_node *soc, *np; | |
262 | struct platform_device *dev; | |
263 | unsigned int *freq; | |
264 | int ret; | |
265 | ||
266 | np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt"); | |
267 | ||
268 | if (!np) { | |
269 | ret = -ENODEV; | |
270 | goto mpc83xx_wdt_nodev; | |
271 | } | |
272 | ||
273 | soc = of_find_node_by_type(NULL, "soc"); | |
274 | ||
275 | if (!soc) { | |
276 | ret = -ENODEV; | |
277 | goto mpc83xx_wdt_nosoc; | |
278 | } | |
279 | ||
280 | freq = (unsigned int *)get_property(soc, "bus-frequency", NULL); | |
281 | if (!freq) { | |
282 | ret = -ENODEV; | |
283 | goto mpc83xx_wdt_err; | |
284 | } | |
285 | ||
286 | memset(&r, 0, sizeof(r)); | |
287 | ||
288 | ret = of_address_to_resource(np, 0, &r); | |
289 | if (ret) | |
290 | goto mpc83xx_wdt_err; | |
291 | ||
292 | dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1); | |
293 | if (IS_ERR(dev)) { | |
294 | ret = PTR_ERR(dev); | |
295 | goto mpc83xx_wdt_err; | |
296 | } | |
297 | ||
298 | ret = platform_device_add_data(dev, freq, sizeof(int)); | |
299 | if (ret) | |
300 | goto mpc83xx_wdt_unreg; | |
301 | ||
302 | of_node_put(soc); | |
303 | of_node_put(np); | |
304 | ||
305 | return 0; | |
306 | ||
307 | mpc83xx_wdt_unreg: | |
308 | platform_device_unregister(dev); | |
309 | mpc83xx_wdt_err: | |
310 | of_node_put(soc); | |
311 | mpc83xx_wdt_nosoc: | |
312 | of_node_put(np); | |
313 | mpc83xx_wdt_nodev: | |
314 | return ret; | |
315 | } | |
316 | arch_initcall(mpc83xx_wdt_init); | |
317 | #endif |