]> bbs.cooldavid.org Git - net-next-2.6.git/blame - arch/powerpc/sysdev/fsl_soc.c
powerpc/85xx: Kconfig cleanup
[net-next-2.6.git] / arch / powerpc / sysdev / fsl_soc.c
CommitLineData
eed32001
KG
1/*
2 * FSL SoC setup code
3 *
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
5 *
fba43665
VB
6 * 2006 (c) MontaVista Software, Inc.
7 * Vitaly Bordug <vbordug@ru.mvista.com>
8 *
eed32001
KG
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14
eed32001
KG
15#include <linux/stddef.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/errno.h>
19#include <linux/major.h>
20#include <linux/delay.h>
21#include <linux/irq.h>
22#include <linux/module.h>
23#include <linux/device.h>
24#include <linux/platform_device.h>
c026c987 25#include <linux/of.h>
0af666fa 26#include <linux/of_platform.h>
a9b14973 27#include <linux/phy.h>
a21e282a 28#include <linux/phy_fixed.h>
26f6cb99 29#include <linux/spi/spi.h>
eed32001 30#include <linux/fsl_devices.h>
fba43665
VB
31#include <linux/fs_enet_pd.h>
32#include <linux/fs_uart_pd.h>
eed32001
KG
33
34#include <asm/system.h>
35#include <asm/atomic.h>
36#include <asm/io.h>
37#include <asm/irq.h>
fba43665 38#include <asm/time.h>
eed32001 39#include <asm/prom.h>
46c4c229 40#include <asm/machdep.h>
eed32001
KG
41#include <sysdev/fsl_soc.h>
42#include <mm/mmu_decl.h>
fba43665 43#include <asm/cpm2.h>
eed32001 44
d3465c92 45extern void init_fcc_ioports(struct fs_platform_info*);
88bdc6f0
VB
46extern void init_fec_ioports(struct fs_platform_info*);
47extern void init_smc_ioports(struct fs_uart_platform_info*);
eed32001
KG
48static phys_addr_t immrbase = -1;
49
50phys_addr_t get_immrbase(void)
51{
52 struct device_node *soc;
53
54 if (immrbase != -1)
55 return immrbase;
56
57 soc = of_find_node_by_type(NULL, "soc");
2fb07d77 58 if (soc) {
f9234736 59 int size;
6c7e072b
SW
60 u32 naddr;
61 const u32 *prop = of_get_property(soc, "#address-cells", &size);
fba43665 62
6c7e072b
SW
63 if (prop && size == 4)
64 naddr = *prop;
65 else
66 naddr = 2;
67
68 prop = of_get_property(soc, "ranges", &size);
fba43665 69 if (prop)
6c7e072b
SW
70 immrbase = of_translate_address(soc, prop + naddr);
71
eed32001 72 of_node_put(soc);
f9234736 73 }
eed32001
KG
74
75 return immrbase;
76}
eed32001 77
2fb07d77 78EXPORT_SYMBOL(get_immrbase);
eed32001 79
38664095
SW
80static u32 sysfreq = -1;
81
82u32 fsl_get_sys_freq(void)
83{
84 struct device_node *soc;
85 const u32 *prop;
86 int size;
87
88 if (sysfreq != -1)
89 return sysfreq;
90
91 soc = of_find_node_by_type(NULL, "soc");
92 if (!soc)
93 return -1;
94
95 prop = of_get_property(soc, "clock-frequency", &size);
96 if (!prop || size != sizeof(*prop) || *prop == 0)
97 prop = of_get_property(soc, "bus-frequency", &size);
98
99 if (prop && size == sizeof(*prop))
100 sysfreq = *prop;
101
102 of_node_put(soc);
103 return sysfreq;
104}
105EXPORT_SYMBOL(fsl_get_sys_freq);
106
59a0ea50 107#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
fba43665
VB
108
109static u32 brgfreq = -1;
110
111u32 get_brgfreq(void)
112{
113 struct device_node *node;
6d817aa7
SW
114 const unsigned int *prop;
115 int size;
fba43665
VB
116
117 if (brgfreq != -1)
118 return brgfreq;
119
6d817aa7 120 node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
fba43665 121 if (node) {
6d817aa7
SW
122 prop = of_get_property(node, "clock-frequency", &size);
123 if (prop && size == 4)
124 brgfreq = *prop;
125
126 of_node_put(node);
127 return brgfreq;
128 }
fba43665 129
6d817aa7
SW
130 /* Legacy device binding -- will go away when no users are left. */
131 node = of_find_node_by_type(NULL, "cpm");
59a0ea50
AV
132 if (!node)
133 node = of_find_compatible_node(NULL, NULL, "fsl,qe");
134 if (!node)
135 node = of_find_node_by_type(NULL, "qe");
136
6d817aa7
SW
137 if (node) {
138 prop = of_get_property(node, "brg-frequency", &size);
f9234736 139 if (prop && size == 4)
fba43665 140 brgfreq = *prop;
f9234736 141
59a0ea50
AV
142 if (brgfreq == -1 || brgfreq == 0) {
143 prop = of_get_property(node, "bus-frequency", &size);
144 if (prop && size == 4)
145 brgfreq = *prop / 2;
146 }
fba43665 147 of_node_put(node);
f9234736 148 }
fba43665
VB
149
150 return brgfreq;
151}
152
153EXPORT_SYMBOL(get_brgfreq);
154
155static u32 fs_baudrate = -1;
156
157u32 get_baudrate(void)
158{
159 struct device_node *node;
160
161 if (fs_baudrate != -1)
162 return fs_baudrate;
163
164 node = of_find_node_by_type(NULL, "serial");
165 if (node) {
f9234736 166 int size;
e2eb6392
SR
167 const unsigned int *prop = of_get_property(node,
168 "current-speed", &size);
fba43665
VB
169
170 if (prop)
171 fs_baudrate = *prop;
172 of_node_put(node);
f9234736 173 }
fba43665
VB
174
175 return fs_baudrate;
176}
177
178EXPORT_SYMBOL(get_baudrate);
179#endif /* CONFIG_CPM2 */
180
a21e282a
VB
181#ifdef CONFIG_FIXED_PHY
182static int __init of_add_fixed_phys(void)
183{
184 int ret;
185 struct device_node *np;
186 u32 *fixed_link;
187 struct fixed_phy_status status = {};
188
189 for_each_node_by_name(np, "ethernet") {
190 fixed_link = (u32 *)of_get_property(np, "fixed-link", NULL);
191 if (!fixed_link)
192 continue;
193
194 status.link = 1;
195 status.duplex = fixed_link[1];
196 status.speed = fixed_link[2];
197 status.pause = fixed_link[3];
198 status.asym_pause = fixed_link[4];
199
200 ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status);
201 if (ret) {
202 of_node_put(np);
203 return ret;
204 }
205 }
206
207 return 0;
208}
209arch_initcall(of_add_fixed_phys);
210#endif /* CONFIG_FIXED_PHY */
211
a7f67bdf 212static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
4b10cfd4
KG
213{
214 if (!phy_type)
215 return FSL_USB2_PHY_NONE;
216 if (!strcasecmp(phy_type, "ulpi"))
217 return FSL_USB2_PHY_ULPI;
218 if (!strcasecmp(phy_type, "utmi"))
219 return FSL_USB2_PHY_UTMI;
220 if (!strcasecmp(phy_type, "utmi_wide"))
221 return FSL_USB2_PHY_UTMI_WIDE;
222 if (!strcasecmp(phy_type, "serial"))
223 return FSL_USB2_PHY_SERIAL;
224
225 return FSL_USB2_PHY_NONE;
226}
227
228static int __init fsl_usb_of_init(void)
229{
230 struct device_node *np;
866b6ddd 231 unsigned int i = 0;
97c5a20a
LY
232 struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
233 *usb_dev_dr_client = NULL;
4b10cfd4
KG
234 int ret;
235
866b6ddd 236 for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
4b10cfd4
KG
237 struct resource r[2];
238 struct fsl_usb2_platform_data usb_data;
a7f67bdf 239 const unsigned char *prop = NULL;
4b10cfd4
KG
240
241 memset(&r, 0, sizeof(r));
242 memset(&usb_data, 0, sizeof(usb_data));
243
244 ret = of_address_to_resource(np, 0, &r[0]);
245 if (ret)
246 goto err;
247
a9b14973 248 of_irq_to_resource(np, 0, &r[1]);
4b10cfd4 249
01cced25
KG
250 usb_dev_mph =
251 platform_device_register_simple("fsl-ehci", i, r, 2);
252 if (IS_ERR(usb_dev_mph)) {
253 ret = PTR_ERR(usb_dev_mph);
4b10cfd4
KG
254 goto err;
255 }
256
01cced25
KG
257 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
258 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
4b10cfd4
KG
259
260 usb_data.operating_mode = FSL_USB2_MPH_HOST;
261
e2eb6392 262 prop = of_get_property(np, "port0", NULL);
4b10cfd4
KG
263 if (prop)
264 usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
265
e2eb6392 266 prop = of_get_property(np, "port1", NULL);
4b10cfd4
KG
267 if (prop)
268 usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
269
e2eb6392 270 prop = of_get_property(np, "phy_type", NULL);
4b10cfd4
KG
271 usb_data.phy_mode = determine_usb_phy(prop);
272
273 ret =
01cced25 274 platform_device_add_data(usb_dev_mph, &usb_data,
4b10cfd4
KG
275 sizeof(struct
276 fsl_usb2_platform_data));
277 if (ret)
01cced25 278 goto unreg_mph;
866b6ddd 279 i++;
4b10cfd4
KG
280 }
281
866b6ddd 282 for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
4b10cfd4
KG
283 struct resource r[2];
284 struct fsl_usb2_platform_data usb_data;
a7f67bdf 285 const unsigned char *prop = NULL;
4b10cfd4 286
c026c987
AV
287 if (!of_device_is_available(np))
288 continue;
289
4b10cfd4
KG
290 memset(&r, 0, sizeof(r));
291 memset(&usb_data, 0, sizeof(usb_data));
292
293 ret = of_address_to_resource(np, 0, &r[0]);
294 if (ret)
01cced25 295 goto unreg_mph;
4b10cfd4 296
a9b14973 297 of_irq_to_resource(np, 0, &r[1]);
4b10cfd4 298
e2eb6392 299 prop = of_get_property(np, "dr_mode", NULL);
97c5a20a
LY
300
301 if (!prop || !strcmp(prop, "host")) {
302 usb_data.operating_mode = FSL_USB2_DR_HOST;
303 usb_dev_dr_host = platform_device_register_simple(
304 "fsl-ehci", i, r, 2);
305 if (IS_ERR(usb_dev_dr_host)) {
306 ret = PTR_ERR(usb_dev_dr_host);
307 goto err;
308 }
309 } else if (prop && !strcmp(prop, "peripheral")) {
310 usb_data.operating_mode = FSL_USB2_DR_DEVICE;
311 usb_dev_dr_client = platform_device_register_simple(
312 "fsl-usb2-udc", i, r, 2);
313 if (IS_ERR(usb_dev_dr_client)) {
314 ret = PTR_ERR(usb_dev_dr_client);
315 goto err;
316 }
317 } else if (prop && !strcmp(prop, "otg")) {
318 usb_data.operating_mode = FSL_USB2_DR_OTG;
319 usb_dev_dr_host = platform_device_register_simple(
320 "fsl-ehci", i, r, 2);
321 if (IS_ERR(usb_dev_dr_host)) {
322 ret = PTR_ERR(usb_dev_dr_host);
323 goto err;
324 }
325 usb_dev_dr_client = platform_device_register_simple(
326 "fsl-usb2-udc", i, r, 2);
327 if (IS_ERR(usb_dev_dr_client)) {
328 ret = PTR_ERR(usb_dev_dr_client);
329 goto err;
330 }
331 } else {
332 ret = -EINVAL;
4b10cfd4
KG
333 goto err;
334 }
335
e2eb6392 336 prop = of_get_property(np, "phy_type", NULL);
4b10cfd4
KG
337 usb_data.phy_mode = determine_usb_phy(prop);
338
97c5a20a
LY
339 if (usb_dev_dr_host) {
340 usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
341 usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
342 dev.coherent_dma_mask;
343 if ((ret = platform_device_add_data(usb_dev_dr_host,
344 &usb_data, sizeof(struct
345 fsl_usb2_platform_data))))
346 goto unreg_dr;
347 }
348 if (usb_dev_dr_client) {
349 usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
350 usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
351 dev.coherent_dma_mask;
352 if ((ret = platform_device_add_data(usb_dev_dr_client,
353 &usb_data, sizeof(struct
354 fsl_usb2_platform_data))))
355 goto unreg_dr;
356 }
866b6ddd 357 i++;
4b10cfd4 358 }
4b10cfd4
KG
359 return 0;
360
01cced25 361unreg_dr:
97c5a20a
LY
362 if (usb_dev_dr_host)
363 platform_device_unregister(usb_dev_dr_host);
364 if (usb_dev_dr_client)
365 platform_device_unregister(usb_dev_dr_client);
01cced25
KG
366unreg_mph:
367 if (usb_dev_mph)
368 platform_device_unregister(usb_dev_mph);
4b10cfd4
KG
369err:
370 return ret;
371}
372
01cced25 373arch_initcall(fsl_usb_of_init);
fba43665 374
5753c082 375#if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
e1c1575f
KG
376static __be32 __iomem *rstcr;
377
378static int __init setup_rstcr(void)
379{
380 struct device_node *np;
381 np = of_find_node_by_name(NULL, "global-utilities");
382 if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
81db718d
KG
383 rstcr = of_iomap(np, 0) + 0xb0;
384 if (!rstcr)
385 printk (KERN_EMERG "Error: reset control register "
386 "not mapped!\n");
46c4c229
PG
387 } else if (ppc_md.restart == fsl_rstcr_restart)
388 printk(KERN_ERR "No RSTCR register, warm reboot won't work\n");
389
e1c1575f
KG
390 if (np)
391 of_node_put(np);
392 return 0;
393}
394
395arch_initcall(setup_rstcr);
396
397void fsl_rstcr_restart(char *cmd)
398{
399 local_irq_disable();
400 if (rstcr)
401 /* set reset control register */
402 out_be32(rstcr, 0x2); /* HRESET_REQ */
403
404 while (1) ;
405}
406#endif
6f90a8bd
YS
407
408#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
43c9f434 409struct platform_diu_data_ops diu_ops;
6f90a8bd 410EXPORT_SYMBOL(diu_ops);
6f90a8bd 411#endif