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Commit | Line | Data |
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89d63fe1 | 1 | /* |
89d63fe1 AN |
2 | * Based on linux/arch/mips/txx9/rbtx4938/setup.c, |
3 | * and RBTX49xx patch from CELF patch archive. | |
4 | * | |
5 | * 2003-2005 (c) MontaVista Software, Inc. | |
6 | * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007 | |
7 | * | |
8 | * This file is subject to the terms and conditions of the GNU General Public | |
9 | * License. See the file "COPYING" in the main directory of this archive | |
10 | * for more details. | |
11 | */ | |
12 | #include <linux/init.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/types.h> | |
edcaf1a6 AN |
15 | #include <linux/interrupt.h> |
16 | #include <linux/string.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/clk.h> | |
19 | #include <linux/err.h> | |
e0eb7307 | 20 | #include <linux/gpio.h> |
68314725 | 21 | #include <linux/platform_device.h> |
7779a5e0 | 22 | #include <linux/serial_core.h> |
51f607c7 | 23 | #include <linux/mtd/physmap.h> |
ae027ead | 24 | #include <linux/leds.h> |
c3b28ae2 | 25 | #include <linux/sysdev.h> |
5a0e3ad6 | 26 | #include <linux/slab.h> |
edcaf1a6 | 27 | #include <asm/bootinfo.h> |
e0eb7307 | 28 | #include <asm/time.h> |
a49297e8 | 29 | #include <asm/reboot.h> |
d10e025f | 30 | #include <asm/r4kcache.h> |
b6263ff2 | 31 | #include <asm/sections.h> |
89d63fe1 | 32 | #include <asm/txx9/generic.h> |
07517529 | 33 | #include <asm/txx9/pci.h> |
496a3b5c | 34 | #include <asm/txx9tmr.h> |
a591f5d3 | 35 | #include <asm/txx9/ndfmc.h> |
f48c8c95 | 36 | #include <asm/txx9/dmac.h> |
edcaf1a6 AN |
37 | #ifdef CONFIG_CPU_TX49XX |
38 | #include <asm/txx9/tx4938.h> | |
39 | #endif | |
89d63fe1 AN |
40 | |
41 | /* EBUSC settings of TX4927, etc. */ | |
42 | struct resource txx9_ce_res[8]; | |
43 | static char txx9_ce_res_name[8][4]; /* "CEn" */ | |
44 | ||
45 | /* pcode, internal register */ | |
94a4c329 | 46 | unsigned int txx9_pcode; |
89d63fe1 AN |
47 | char txx9_pcode_str[8]; |
48 | static struct resource txx9_reg_res = { | |
49 | .name = txx9_pcode_str, | |
50 | .flags = IORESOURCE_MEM, | |
51 | }; | |
52 | void __init | |
53 | txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size) | |
54 | { | |
55 | int i; | |
56 | ||
57 | for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) { | |
58 | sprintf(txx9_ce_res_name[i], "CE%d", i); | |
59 | txx9_ce_res[i].flags = IORESOURCE_MEM; | |
60 | txx9_ce_res[i].name = txx9_ce_res_name[i]; | |
61 | } | |
62 | ||
073828d0 | 63 | txx9_pcode = pcode; |
89d63fe1 AN |
64 | sprintf(txx9_pcode_str, "TX%x", pcode); |
65 | if (base) { | |
66 | txx9_reg_res.start = base & 0xfffffffffULL; | |
67 | txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1); | |
68 | request_resource(&iomem_resource, &txx9_reg_res); | |
69 | } | |
70 | } | |
71 | ||
72 | /* clocks */ | |
73 | unsigned int txx9_master_clock; | |
74 | unsigned int txx9_cpu_clock; | |
75 | unsigned int txx9_gbus_clock; | |
edcaf1a6 | 76 | |
c7b95bcb AN |
77 | #ifdef CONFIG_CPU_TX39XX |
78 | /* don't enable by default - see errata */ | |
79 | int txx9_ccfg_toeon __initdata; | |
80 | #else | |
94a4c329 | 81 | int txx9_ccfg_toeon __initdata = 1; |
c7b95bcb | 82 | #endif |
edcaf1a6 AN |
83 | |
84 | /* Minimum CLK support */ | |
85 | ||
86 | struct clk *clk_get(struct device *dev, const char *id) | |
87 | { | |
88 | if (!strcmp(id, "spi-baseclk")) | |
fcc152f3 | 89 | return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 2); |
edcaf1a6 | 90 | if (!strcmp(id, "imbus_clk")) |
94a4c329 | 91 | return (struct clk *)((unsigned long)txx9_gbus_clock / 2); |
edcaf1a6 AN |
92 | return ERR_PTR(-ENOENT); |
93 | } | |
94 | EXPORT_SYMBOL(clk_get); | |
95 | ||
96 | int clk_enable(struct clk *clk) | |
97 | { | |
98 | return 0; | |
99 | } | |
100 | EXPORT_SYMBOL(clk_enable); | |
101 | ||
102 | void clk_disable(struct clk *clk) | |
103 | { | |
104 | } | |
105 | EXPORT_SYMBOL(clk_disable); | |
106 | ||
107 | unsigned long clk_get_rate(struct clk *clk) | |
108 | { | |
109 | return (unsigned long)clk; | |
110 | } | |
111 | EXPORT_SYMBOL(clk_get_rate); | |
112 | ||
113 | void clk_put(struct clk *clk) | |
114 | { | |
115 | } | |
116 | EXPORT_SYMBOL(clk_put); | |
117 | ||
8d795f2a AN |
118 | /* GPIO support */ |
119 | ||
120 | #ifdef CONFIG_GENERIC_GPIO | |
121 | int gpio_to_irq(unsigned gpio) | |
122 | { | |
123 | return -EINVAL; | |
124 | } | |
125 | EXPORT_SYMBOL(gpio_to_irq); | |
126 | ||
127 | int irq_to_gpio(unsigned irq) | |
128 | { | |
129 | return -EINVAL; | |
130 | } | |
131 | EXPORT_SYMBOL(irq_to_gpio); | |
132 | #endif | |
133 | ||
860e546c AN |
134 | #define BOARD_VEC(board) extern struct txx9_board_vec board; |
135 | #include <asm/txx9/boards.h> | |
136 | #undef BOARD_VEC | |
edcaf1a6 | 137 | |
edcaf1a6 AN |
138 | struct txx9_board_vec *txx9_board_vec __initdata; |
139 | static char txx9_system_type[32]; | |
140 | ||
860e546c AN |
141 | static struct txx9_board_vec *board_vecs[] __initdata = { |
142 | #define BOARD_VEC(board) &board, | |
143 | #include <asm/txx9/boards.h> | |
144 | #undef BOARD_VEC | |
145 | }; | |
146 | ||
147 | static struct txx9_board_vec *__init find_board_byname(const char *name) | |
148 | { | |
149 | int i; | |
150 | ||
151 | /* search board_vecs table */ | |
152 | for (i = 0; i < ARRAY_SIZE(board_vecs); i++) { | |
153 | if (strstr(board_vecs[i]->system, name)) | |
154 | return board_vecs[i]; | |
155 | } | |
156 | return NULL; | |
157 | } | |
158 | ||
e0dfb20c | 159 | static void __init prom_init_cmdline(void) |
edcaf1a6 | 160 | { |
97b0511c GU |
161 | int argc; |
162 | int *argv32; | |
edcaf1a6 AN |
163 | int i; /* Always ignore the "-c" at argv[0] */ |
164 | ||
97b0511c GU |
165 | if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) { |
166 | /* | |
167 | * argc is not a valid number, or argv32 is not a valid | |
168 | * pointer | |
169 | */ | |
170 | argc = 0; | |
171 | argv32 = NULL; | |
172 | } else { | |
173 | argc = (int)fw_arg0; | |
174 | argv32 = (int *)fw_arg1; | |
175 | } | |
176 | ||
e0dfb20c | 177 | arcs_cmdline[0] = '\0'; |
edcaf1a6 AN |
178 | |
179 | for (i = 1; i < argc; i++) { | |
e0dfb20c | 180 | char *str = (char *)(long)argv32[i]; |
edcaf1a6 AN |
181 | if (i != 1) |
182 | strcat(arcs_cmdline, " "); | |
e0dfb20c AN |
183 | if (strchr(str, ' ')) { |
184 | strcat(arcs_cmdline, "\""); | |
185 | strcat(arcs_cmdline, str); | |
186 | strcat(arcs_cmdline, "\""); | |
187 | } else | |
188 | strcat(arcs_cmdline, str); | |
189 | } | |
edcaf1a6 AN |
190 | } |
191 | ||
d10e025f AN |
192 | static int txx9_ic_disable __initdata; |
193 | static int txx9_dc_disable __initdata; | |
194 | ||
195 | #if defined(CONFIG_CPU_TX49XX) | |
196 | /* flush all cache on very early stage (before 4k_cache_init) */ | |
197 | static void __init early_flush_dcache(void) | |
198 | { | |
199 | unsigned int conf = read_c0_config(); | |
200 | unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6)); | |
201 | unsigned int linesz = 32; | |
202 | unsigned long addr, end; | |
203 | ||
204 | end = INDEX_BASE + dc_size / 4; | |
205 | /* 4way, waybit=0 */ | |
206 | for (addr = INDEX_BASE; addr < end; addr += linesz) { | |
207 | cache_op(Index_Writeback_Inv_D, addr | 0); | |
208 | cache_op(Index_Writeback_Inv_D, addr | 1); | |
209 | cache_op(Index_Writeback_Inv_D, addr | 2); | |
210 | cache_op(Index_Writeback_Inv_D, addr | 3); | |
211 | } | |
212 | } | |
213 | ||
214 | static void __init txx9_cache_fixup(void) | |
215 | { | |
216 | unsigned int conf; | |
217 | ||
218 | conf = read_c0_config(); | |
219 | /* flush and disable */ | |
220 | if (txx9_ic_disable) { | |
221 | conf |= TX49_CONF_IC; | |
222 | write_c0_config(conf); | |
223 | } | |
224 | if (txx9_dc_disable) { | |
225 | early_flush_dcache(); | |
226 | conf |= TX49_CONF_DC; | |
227 | write_c0_config(conf); | |
228 | } | |
229 | ||
230 | /* enable cache */ | |
231 | conf = read_c0_config(); | |
232 | if (!txx9_ic_disable) | |
233 | conf &= ~TX49_CONF_IC; | |
234 | if (!txx9_dc_disable) | |
235 | conf &= ~TX49_CONF_DC; | |
236 | write_c0_config(conf); | |
237 | ||
238 | if (conf & TX49_CONF_IC) | |
239 | pr_info("TX49XX I-Cache disabled.\n"); | |
240 | if (conf & TX49_CONF_DC) | |
241 | pr_info("TX49XX D-Cache disabled.\n"); | |
242 | } | |
243 | #elif defined(CONFIG_CPU_TX39XX) | |
244 | /* flush all cache on very early stage (before tx39_cache_init) */ | |
245 | static void __init early_flush_dcache(void) | |
246 | { | |
247 | unsigned int conf = read_c0_config(); | |
248 | unsigned int dc_size = 1 << (10 + ((conf & TX39_CONF_DCS_MASK) >> | |
249 | TX39_CONF_DCS_SHIFT)); | |
250 | unsigned int linesz = 16; | |
251 | unsigned long addr, end; | |
252 | ||
253 | end = INDEX_BASE + dc_size / 2; | |
254 | /* 2way, waybit=0 */ | |
255 | for (addr = INDEX_BASE; addr < end; addr += linesz) { | |
256 | cache_op(Index_Writeback_Inv_D, addr | 0); | |
257 | cache_op(Index_Writeback_Inv_D, addr | 1); | |
258 | } | |
259 | } | |
260 | ||
261 | static void __init txx9_cache_fixup(void) | |
262 | { | |
263 | unsigned int conf; | |
264 | ||
265 | conf = read_c0_config(); | |
266 | /* flush and disable */ | |
267 | if (txx9_ic_disable) { | |
268 | conf &= ~TX39_CONF_ICE; | |
269 | write_c0_config(conf); | |
270 | } | |
271 | if (txx9_dc_disable) { | |
272 | early_flush_dcache(); | |
273 | conf &= ~TX39_CONF_DCE; | |
274 | write_c0_config(conf); | |
275 | } | |
276 | ||
277 | /* enable cache */ | |
278 | conf = read_c0_config(); | |
279 | if (!txx9_ic_disable) | |
280 | conf |= TX39_CONF_ICE; | |
281 | if (!txx9_dc_disable) | |
282 | conf |= TX39_CONF_DCE; | |
283 | write_c0_config(conf); | |
284 | ||
285 | if (!(conf & TX39_CONF_ICE)) | |
286 | pr_info("TX39XX I-Cache disabled.\n"); | |
287 | if (!(conf & TX39_CONF_DCE)) | |
288 | pr_info("TX39XX D-Cache disabled.\n"); | |
289 | } | |
290 | #else | |
291 | static inline void txx9_cache_fixup(void) | |
292 | { | |
293 | } | |
294 | #endif | |
295 | ||
860e546c | 296 | static void __init preprocess_cmdline(void) |
edcaf1a6 | 297 | { |
7580c9c3 | 298 | static char cmdline[COMMAND_LINE_SIZE] __initdata; |
860e546c AN |
299 | char *s; |
300 | ||
301 | strcpy(cmdline, arcs_cmdline); | |
302 | s = cmdline; | |
303 | arcs_cmdline[0] = '\0'; | |
304 | while (s && *s) { | |
305 | char *str = strsep(&s, " "); | |
306 | if (strncmp(str, "board=", 6) == 0) { | |
307 | txx9_board_vec = find_board_byname(str + 6); | |
308 | continue; | |
309 | } else if (strncmp(str, "masterclk=", 10) == 0) { | |
310 | unsigned long val; | |
311 | if (strict_strtoul(str + 10, 10, &val) == 0) | |
312 | txx9_master_clock = val; | |
313 | continue; | |
d10e025f AN |
314 | } else if (strcmp(str, "icdisable") == 0) { |
315 | txx9_ic_disable = 1; | |
316 | continue; | |
317 | } else if (strcmp(str, "dcdisable") == 0) { | |
318 | txx9_dc_disable = 1; | |
319 | continue; | |
c7b95bcb AN |
320 | } else if (strcmp(str, "toeoff") == 0) { |
321 | txx9_ccfg_toeon = 0; | |
322 | continue; | |
323 | } else if (strcmp(str, "toeon") == 0) { | |
324 | txx9_ccfg_toeon = 1; | |
325 | continue; | |
860e546c AN |
326 | } |
327 | if (arcs_cmdline[0]) | |
328 | strcat(arcs_cmdline, " "); | |
329 | strcat(arcs_cmdline, str); | |
330 | } | |
d10e025f AN |
331 | |
332 | txx9_cache_fixup(); | |
860e546c AN |
333 | } |
334 | ||
335 | static void __init select_board(void) | |
336 | { | |
337 | const char *envstr; | |
338 | ||
339 | /* first, determine by "board=" argument in preprocess_cmdline() */ | |
340 | if (txx9_board_vec) | |
341 | return; | |
342 | /* next, determine by "board" envvar */ | |
343 | envstr = prom_getenv("board"); | |
344 | if (envstr) { | |
345 | txx9_board_vec = find_board_byname(envstr); | |
346 | if (txx9_board_vec) | |
347 | return; | |
348 | } | |
349 | ||
350 | /* select "default" board */ | |
edcaf1a6 | 351 | #ifdef CONFIG_CPU_TX39XX |
7a1fdf19 | 352 | txx9_board_vec = &jmr3927_vec; |
edcaf1a6 AN |
353 | #endif |
354 | #ifdef CONFIG_CPU_TX49XX | |
355 | switch (TX4938_REV_PCODE()) { | |
8d795f2a | 356 | #ifdef CONFIG_TOSHIBA_RBTX4927 |
edcaf1a6 | 357 | case 0x4927: |
7a1fdf19 | 358 | txx9_board_vec = &rbtx4927_vec; |
edcaf1a6 AN |
359 | break; |
360 | case 0x4937: | |
7a1fdf19 | 361 | txx9_board_vec = &rbtx4937_vec; |
edcaf1a6 | 362 | break; |
8d795f2a AN |
363 | #endif |
364 | #ifdef CONFIG_TOSHIBA_RBTX4938 | |
edcaf1a6 | 365 | case 0x4938: |
7a1fdf19 | 366 | txx9_board_vec = &rbtx4938_vec; |
edcaf1a6 | 367 | break; |
b27311e1 AN |
368 | #endif |
369 | #ifdef CONFIG_TOSHIBA_RBTX4939 | |
370 | case 0x4939: | |
371 | txx9_board_vec = &rbtx4939_vec; | |
372 | break; | |
8d795f2a | 373 | #endif |
edcaf1a6 AN |
374 | } |
375 | #endif | |
860e546c AN |
376 | } |
377 | ||
378 | void __init prom_init(void) | |
379 | { | |
380 | prom_init_cmdline(); | |
381 | preprocess_cmdline(); | |
382 | select_board(); | |
7a1fdf19 YY |
383 | |
384 | strcpy(txx9_system_type, txx9_board_vec->system); | |
385 | ||
7b226094 | 386 | txx9_board_vec->prom_init(); |
edcaf1a6 AN |
387 | } |
388 | ||
389 | void __init prom_free_prom_memory(void) | |
390 | { | |
b6263ff2 AN |
391 | unsigned long saddr = PAGE_SIZE; |
392 | unsigned long eaddr = __pa_symbol(&_text); | |
393 | ||
394 | if (saddr < eaddr) | |
395 | free_init_pages("prom memory", saddr, eaddr); | |
edcaf1a6 AN |
396 | } |
397 | ||
398 | const char *get_system_type(void) | |
399 | { | |
400 | return txx9_system_type; | |
401 | } | |
402 | ||
265b89db AN |
403 | const char *__init prom_getenv(const char *name) |
404 | { | |
97b0511c | 405 | const s32 *str; |
265b89db | 406 | |
97b0511c | 407 | if (fw_arg2 < CKSEG0) |
265b89db | 408 | return NULL; |
97b0511c GU |
409 | |
410 | str = (const s32 *)fw_arg2; | |
265b89db AN |
411 | /* YAMON style ("name", "value" pairs) */ |
412 | while (str[0] && str[1]) { | |
413 | if (!strcmp((const char *)(unsigned long)str[0], name)) | |
414 | return (const char *)(unsigned long)str[1]; | |
415 | str += 2; | |
416 | } | |
417 | return NULL; | |
418 | } | |
419 | ||
a49297e8 AN |
420 | static void __noreturn txx9_machine_halt(void) |
421 | { | |
422 | local_irq_disable(); | |
423 | clear_c0_status(ST0_IM); | |
424 | while (1) { | |
425 | if (cpu_wait) { | |
426 | (*cpu_wait)(); | |
427 | if (cpu_has_counter) { | |
428 | /* | |
429 | * Clear counter interrupt while it | |
430 | * breaks WAIT instruction even if | |
431 | * masked. | |
432 | */ | |
433 | write_c0_compare(0); | |
434 | } | |
435 | } | |
436 | } | |
437 | } | |
438 | ||
68314725 AN |
439 | /* Watchdog support */ |
440 | void __init txx9_wdt_init(unsigned long base) | |
441 | { | |
442 | struct resource res = { | |
443 | .start = base, | |
444 | .end = base + 0x100 - 1, | |
445 | .flags = IORESOURCE_MEM, | |
446 | }; | |
447 | platform_device_register_simple("txx9wdt", -1, &res, 1); | |
448 | } | |
449 | ||
496a3b5c AN |
450 | void txx9_wdt_now(unsigned long base) |
451 | { | |
452 | struct txx9_tmr_reg __iomem *tmrptr = | |
453 | ioremap(base, sizeof(struct txx9_tmr_reg)); | |
454 | /* disable watch dog timer */ | |
455 | __raw_writel(TXx9_TMWTMR_WDIS | TXx9_TMWTMR_TWC, &tmrptr->wtmr); | |
456 | __raw_writel(0, &tmrptr->tcr); | |
457 | /* kick watchdog */ | |
458 | __raw_writel(TXx9_TMWTMR_TWIE, &tmrptr->wtmr); | |
459 | __raw_writel(1, &tmrptr->cpra); /* immediate */ | |
460 | __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG, | |
461 | &tmrptr->tcr); | |
462 | } | |
463 | ||
c49f91f5 AN |
464 | /* SPI support */ |
465 | void __init txx9_spi_init(int busid, unsigned long base, int irq) | |
466 | { | |
467 | struct resource res[] = { | |
468 | { | |
469 | .start = base, | |
470 | .end = base + 0x20 - 1, | |
471 | .flags = IORESOURCE_MEM, | |
472 | }, { | |
473 | .start = irq, | |
474 | .flags = IORESOURCE_IRQ, | |
475 | }, | |
476 | }; | |
477 | platform_device_register_simple("spi_txx9", busid, | |
478 | res, ARRAY_SIZE(res)); | |
479 | } | |
480 | ||
481 | void __init txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr) | |
482 | { | |
483 | struct platform_device *pdev = | |
484 | platform_device_alloc("tc35815-mac", id); | |
485 | if (!pdev || | |
486 | platform_device_add_data(pdev, ethaddr, 6) || | |
487 | platform_device_add(pdev)) | |
488 | platform_device_put(pdev); | |
489 | } | |
490 | ||
7779a5e0 AN |
491 | void __init txx9_sio_init(unsigned long baseaddr, int irq, |
492 | unsigned int line, unsigned int sclk, int nocts) | |
493 | { | |
494 | #ifdef CONFIG_SERIAL_TXX9 | |
495 | struct uart_port req; | |
496 | ||
497 | memset(&req, 0, sizeof(req)); | |
498 | req.line = line; | |
499 | req.iotype = UPIO_MEM; | |
500 | req.membase = ioremap(baseaddr, 0x24); | |
501 | req.mapbase = baseaddr; | |
502 | req.irq = irq; | |
503 | if (!nocts) | |
504 | req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/; | |
505 | if (sclk) { | |
506 | req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/; | |
507 | req.uartclk = sclk; | |
508 | } else | |
509 | req.uartclk = TXX9_IMCLK; | |
510 | early_serial_txx9_setup(&req); | |
511 | #endif /* CONFIG_SERIAL_TXX9 */ | |
512 | } | |
513 | ||
e352953c AN |
514 | #ifdef CONFIG_EARLY_PRINTK |
515 | static void __init null_prom_putchar(char c) | |
516 | { | |
517 | } | |
518 | void (*txx9_prom_putchar)(char c) __initdata = null_prom_putchar; | |
519 | ||
520 | void __init prom_putchar(char c) | |
521 | { | |
522 | txx9_prom_putchar(c); | |
523 | } | |
524 | ||
525 | static void __iomem *early_txx9_sio_port; | |
526 | ||
527 | static void __init early_txx9_sio_putchar(char c) | |
528 | { | |
529 | #define TXX9_SICISR 0x0c | |
530 | #define TXX9_SITFIFO 0x1c | |
531 | #define TXX9_SICISR_TXALS 0x00000002 | |
532 | while (!(__raw_readl(early_txx9_sio_port + TXX9_SICISR) & | |
533 | TXX9_SICISR_TXALS)) | |
534 | ; | |
535 | __raw_writel(c, early_txx9_sio_port + TXX9_SITFIFO); | |
536 | } | |
537 | ||
538 | void __init txx9_sio_putchar_init(unsigned long baseaddr) | |
539 | { | |
540 | early_txx9_sio_port = ioremap(baseaddr, 0x24); | |
541 | txx9_prom_putchar = early_txx9_sio_putchar; | |
542 | } | |
543 | #endif /* CONFIG_EARLY_PRINTK */ | |
544 | ||
edcaf1a6 AN |
545 | /* wrappers */ |
546 | void __init plat_mem_setup(void) | |
547 | { | |
94a4c329 AN |
548 | ioport_resource.start = 0; |
549 | ioport_resource.end = ~0UL; /* no limit */ | |
550 | iomem_resource.start = 0; | |
551 | iomem_resource.end = ~0UL; /* no limit */ | |
a49297e8 AN |
552 | |
553 | /* fallback restart/halt routines */ | |
554 | _machine_restart = (void (*)(char *))txx9_machine_halt; | |
555 | _machine_halt = txx9_machine_halt; | |
556 | pm_power_off = txx9_machine_halt; | |
557 | ||
07517529 AN |
558 | #ifdef CONFIG_PCI |
559 | pcibios_plat_setup = txx9_pcibios_setup; | |
560 | #endif | |
edcaf1a6 AN |
561 | txx9_board_vec->mem_setup(); |
562 | } | |
563 | ||
564 | void __init arch_init_irq(void) | |
565 | { | |
566 | txx9_board_vec->irq_setup(); | |
567 | } | |
568 | ||
569 | void __init plat_time_init(void) | |
570 | { | |
1374d084 AN |
571 | #ifdef CONFIG_CPU_TX49XX |
572 | mips_hpt_frequency = txx9_cpu_clock / 2; | |
573 | #endif | |
edcaf1a6 AN |
574 | txx9_board_vec->time_init(); |
575 | } | |
576 | ||
577 | static int __init _txx9_arch_init(void) | |
578 | { | |
579 | if (txx9_board_vec->arch_init) | |
580 | txx9_board_vec->arch_init(); | |
581 | return 0; | |
582 | } | |
583 | arch_initcall(_txx9_arch_init); | |
584 | ||
585 | static int __init _txx9_device_init(void) | |
586 | { | |
587 | if (txx9_board_vec->device_init) | |
588 | txx9_board_vec->device_init(); | |
589 | return 0; | |
590 | } | |
591 | device_initcall(_txx9_device_init); | |
592 | ||
593 | int (*txx9_irq_dispatch)(int pending); | |
594 | asmlinkage void plat_irq_dispatch(void) | |
595 | { | |
596 | int pending = read_c0_status() & read_c0_cause() & ST0_IM; | |
597 | int irq = txx9_irq_dispatch(pending); | |
598 | ||
599 | if (likely(irq >= 0)) | |
600 | do_IRQ(irq); | |
601 | else | |
602 | spurious_interrupt(); | |
603 | } | |
4c642f3f AN |
604 | |
605 | /* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */ | |
606 | #ifdef NEEDS_TXX9_SWIZZLE_ADDR_B | |
607 | static unsigned long __swizzle_addr_none(unsigned long port) | |
608 | { | |
609 | return port; | |
610 | } | |
611 | unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none; | |
612 | EXPORT_SYMBOL(__swizzle_addr_b); | |
613 | #endif | |
51f607c7 | 614 | |
1ba5a176 AN |
615 | #ifdef NEEDS_TXX9_IOSWABW |
616 | static u16 ioswabw_default(volatile u16 *a, u16 x) | |
617 | { | |
618 | return le16_to_cpu(x); | |
619 | } | |
620 | static u16 __mem_ioswabw_default(volatile u16 *a, u16 x) | |
621 | { | |
622 | return x; | |
623 | } | |
624 | u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default; | |
625 | EXPORT_SYMBOL(ioswabw); | |
626 | u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default; | |
627 | EXPORT_SYMBOL(__mem_ioswabw); | |
628 | #endif | |
629 | ||
51f607c7 AN |
630 | void __init txx9_physmap_flash_init(int no, unsigned long addr, |
631 | unsigned long size, | |
632 | const struct physmap_flash_data *pdata) | |
633 | { | |
634 | #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) | |
635 | struct resource res = { | |
636 | .start = addr, | |
637 | .end = addr + size - 1, | |
638 | .flags = IORESOURCE_MEM, | |
639 | }; | |
640 | struct platform_device *pdev; | |
641 | #ifdef CONFIG_MTD_PARTITIONS | |
642 | static struct mtd_partition parts[2]; | |
643 | struct physmap_flash_data pdata_part; | |
644 | ||
645 | /* If this area contained boot area, make separate partition */ | |
646 | if (pdata->nr_parts == 0 && !pdata->parts && | |
647 | addr < 0x1fc00000 && addr + size > 0x1fc00000 && | |
648 | !parts[0].name) { | |
649 | parts[0].name = "boot"; | |
650 | parts[0].offset = 0x1fc00000 - addr; | |
651 | parts[0].size = addr + size - 0x1fc00000; | |
652 | parts[1].name = "user"; | |
653 | parts[1].offset = 0; | |
654 | parts[1].size = 0x1fc00000 - addr; | |
655 | pdata_part = *pdata; | |
656 | pdata_part.nr_parts = ARRAY_SIZE(parts); | |
657 | pdata_part.parts = parts; | |
658 | pdata = &pdata_part; | |
659 | } | |
660 | #endif | |
661 | pdev = platform_device_alloc("physmap-flash", no); | |
662 | if (!pdev || | |
663 | platform_device_add_resources(pdev, &res, 1) || | |
a591f5d3 AN |
664 | platform_device_add_data(pdev, pdata, sizeof(*pdata)) || |
665 | platform_device_add(pdev)) | |
666 | platform_device_put(pdev); | |
667 | #endif | |
668 | } | |
669 | ||
670 | void __init txx9_ndfmc_init(unsigned long baseaddr, | |
671 | const struct txx9ndfmc_platform_data *pdata) | |
672 | { | |
673 | #if defined(CONFIG_MTD_NAND_TXX9NDFMC) || \ | |
674 | defined(CONFIG_MTD_NAND_TXX9NDFMC_MODULE) | |
675 | struct resource res = { | |
676 | .start = baseaddr, | |
677 | .end = baseaddr + 0x1000 - 1, | |
678 | .flags = IORESOURCE_MEM, | |
679 | }; | |
680 | struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1); | |
681 | ||
682 | if (!pdev || | |
683 | platform_device_add_resources(pdev, &res, 1) || | |
51f607c7 AN |
684 | platform_device_add_data(pdev, pdata, sizeof(*pdata)) || |
685 | platform_device_add(pdev)) | |
686 | platform_device_put(pdev); | |
687 | #endif | |
688 | } | |
ae027ead AN |
689 | |
690 | #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) | |
691 | static DEFINE_SPINLOCK(txx9_iocled_lock); | |
692 | ||
693 | #define TXX9_IOCLED_MAXLEDS 8 | |
694 | ||
695 | struct txx9_iocled_data { | |
696 | struct gpio_chip chip; | |
697 | u8 cur_val; | |
698 | void __iomem *mmioaddr; | |
699 | struct gpio_led_platform_data pdata; | |
700 | struct gpio_led leds[TXX9_IOCLED_MAXLEDS]; | |
701 | char names[TXX9_IOCLED_MAXLEDS][32]; | |
702 | }; | |
703 | ||
704 | static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset) | |
705 | { | |
706 | struct txx9_iocled_data *data = | |
707 | container_of(chip, struct txx9_iocled_data, chip); | |
708 | return data->cur_val & (1 << offset); | |
709 | } | |
710 | ||
711 | static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset, | |
712 | int value) | |
713 | { | |
714 | struct txx9_iocled_data *data = | |
715 | container_of(chip, struct txx9_iocled_data, chip); | |
716 | unsigned long flags; | |
717 | spin_lock_irqsave(&txx9_iocled_lock, flags); | |
718 | if (value) | |
719 | data->cur_val |= 1 << offset; | |
720 | else | |
721 | data->cur_val &= ~(1 << offset); | |
722 | writeb(data->cur_val, data->mmioaddr); | |
723 | mmiowb(); | |
724 | spin_unlock_irqrestore(&txx9_iocled_lock, flags); | |
725 | } | |
726 | ||
727 | static int txx9_iocled_dir_in(struct gpio_chip *chip, unsigned int offset) | |
728 | { | |
729 | return 0; | |
730 | } | |
731 | ||
732 | static int txx9_iocled_dir_out(struct gpio_chip *chip, unsigned int offset, | |
733 | int value) | |
734 | { | |
735 | txx9_iocled_set(chip, offset, value); | |
736 | return 0; | |
737 | } | |
738 | ||
739 | void __init txx9_iocled_init(unsigned long baseaddr, | |
740 | int basenum, unsigned int num, int lowactive, | |
741 | const char *color, char **deftriggers) | |
742 | { | |
743 | struct txx9_iocled_data *iocled; | |
744 | struct platform_device *pdev; | |
745 | int i; | |
746 | static char *default_triggers[] __initdata = { | |
747 | "heartbeat", | |
748 | "ide-disk", | |
749 | "nand-disk", | |
750 | NULL, | |
751 | }; | |
752 | ||
753 | if (!deftriggers) | |
754 | deftriggers = default_triggers; | |
755 | iocled = kzalloc(sizeof(*iocled), GFP_KERNEL); | |
756 | if (!iocled) | |
757 | return; | |
758 | iocled->mmioaddr = ioremap(baseaddr, 1); | |
759 | if (!iocled->mmioaddr) | |
70ebadc8 | 760 | goto out_free; |
ae027ead AN |
761 | iocled->chip.get = txx9_iocled_get; |
762 | iocled->chip.set = txx9_iocled_set; | |
763 | iocled->chip.direction_input = txx9_iocled_dir_in; | |
764 | iocled->chip.direction_output = txx9_iocled_dir_out; | |
765 | iocled->chip.label = "iocled"; | |
766 | iocled->chip.base = basenum; | |
767 | iocled->chip.ngpio = num; | |
768 | if (gpiochip_add(&iocled->chip)) | |
70ebadc8 | 769 | goto out_unmap; |
ae027ead AN |
770 | if (basenum < 0) |
771 | basenum = iocled->chip.base; | |
772 | ||
773 | pdev = platform_device_alloc("leds-gpio", basenum); | |
774 | if (!pdev) | |
70ebadc8 | 775 | goto out_gpio; |
ae027ead AN |
776 | iocled->pdata.num_leds = num; |
777 | iocled->pdata.leds = iocled->leds; | |
778 | for (i = 0; i < num; i++) { | |
779 | struct gpio_led *led = &iocled->leds[i]; | |
780 | snprintf(iocled->names[i], sizeof(iocled->names[i]), | |
781 | "iocled:%s:%u", color, i); | |
782 | led->name = iocled->names[i]; | |
783 | led->gpio = basenum + i; | |
784 | led->active_low = lowactive; | |
785 | if (deftriggers && *deftriggers) | |
786 | led->default_trigger = *deftriggers++; | |
787 | } | |
788 | pdev->dev.platform_data = &iocled->pdata; | |
789 | if (platform_device_add(pdev)) | |
70ebadc8 JL |
790 | goto out_pdev; |
791 | return; | |
792 | out_pdev: | |
793 | platform_device_put(pdev); | |
794 | out_gpio: | |
a2e62f3a RR |
795 | if (gpiochip_remove(&iocled->chip)) |
796 | return; | |
70ebadc8 JL |
797 | out_unmap: |
798 | iounmap(iocled->mmioaddr); | |
799 | out_free: | |
800 | kfree(iocled); | |
ae027ead AN |
801 | } |
802 | #else /* CONFIG_LEDS_GPIO */ | |
803 | void __init txx9_iocled_init(unsigned long baseaddr, | |
804 | int basenum, unsigned int num, int lowactive, | |
805 | const char *color, char **deftriggers) | |
806 | { | |
807 | } | |
808 | #endif /* CONFIG_LEDS_GPIO */ | |
f48c8c95 AN |
809 | |
810 | void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq, | |
811 | const struct txx9dmac_platform_data *pdata) | |
812 | { | |
813 | #if defined(CONFIG_TXX9_DMAC) || defined(CONFIG_TXX9_DMAC_MODULE) | |
814 | struct resource res[] = { | |
815 | { | |
816 | .start = baseaddr, | |
817 | .end = baseaddr + 0x800 - 1, | |
818 | .flags = IORESOURCE_MEM, | |
819 | #ifndef CONFIG_MACH_TX49XX | |
820 | }, { | |
821 | .start = irq, | |
822 | .flags = IORESOURCE_IRQ, | |
823 | #endif | |
824 | } | |
825 | }; | |
826 | #ifdef CONFIG_MACH_TX49XX | |
827 | struct resource chan_res[] = { | |
828 | { | |
829 | .flags = IORESOURCE_IRQ, | |
830 | } | |
831 | }; | |
832 | #endif | |
833 | struct platform_device *pdev = platform_device_alloc("txx9dmac", id); | |
834 | struct txx9dmac_chan_platform_data cpdata; | |
835 | int i; | |
836 | ||
837 | if (!pdev || | |
838 | platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) || | |
839 | platform_device_add_data(pdev, pdata, sizeof(*pdata)) || | |
840 | platform_device_add(pdev)) { | |
841 | platform_device_put(pdev); | |
842 | return; | |
843 | } | |
844 | memset(&cpdata, 0, sizeof(cpdata)); | |
845 | cpdata.dmac_dev = pdev; | |
846 | for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) { | |
847 | #ifdef CONFIG_MACH_TX49XX | |
848 | chan_res[0].start = irq + i; | |
849 | #endif | |
850 | pdev = platform_device_alloc("txx9dmac-chan", | |
851 | id * TXX9_DMA_MAX_NR_CHANNELS + i); | |
852 | if (!pdev || | |
853 | #ifdef CONFIG_MACH_TX49XX | |
854 | platform_device_add_resources(pdev, chan_res, | |
855 | ARRAY_SIZE(chan_res)) || | |
856 | #endif | |
857 | platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) || | |
858 | platform_device_add(pdev)) | |
859 | platform_device_put(pdev); | |
860 | } | |
861 | #endif | |
862 | } | |
742cd586 AN |
863 | |
864 | void __init txx9_aclc_init(unsigned long baseaddr, int irq, | |
865 | unsigned int dmac_id, | |
866 | unsigned int dma_chan_out, | |
867 | unsigned int dma_chan_in) | |
868 | { | |
869 | #if defined(CONFIG_SND_SOC_TXX9ACLC) || \ | |
870 | defined(CONFIG_SND_SOC_TXX9ACLC_MODULE) | |
871 | unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS; | |
872 | struct resource res[] = { | |
873 | { | |
874 | .start = baseaddr, | |
875 | .end = baseaddr + 0x100 - 1, | |
876 | .flags = IORESOURCE_MEM, | |
877 | }, { | |
878 | .start = irq, | |
879 | .flags = IORESOURCE_IRQ, | |
880 | }, { | |
881 | .name = "txx9dmac-chan", | |
882 | .start = dma_base + dma_chan_out, | |
883 | .flags = IORESOURCE_DMA, | |
884 | }, { | |
885 | .name = "txx9dmac-chan", | |
886 | .start = dma_base + dma_chan_in, | |
887 | .flags = IORESOURCE_DMA, | |
888 | } | |
889 | }; | |
890 | struct platform_device *pdev = | |
891 | platform_device_alloc("txx9aclc-ac97", -1); | |
892 | ||
893 | if (!pdev || | |
894 | platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) || | |
895 | platform_device_add(pdev)) | |
896 | platform_device_put(pdev); | |
897 | #endif | |
898 | } | |
c3b28ae2 AN |
899 | |
900 | static struct sysdev_class txx9_sramc_sysdev_class; | |
901 | ||
902 | struct txx9_sramc_sysdev { | |
903 | struct sys_device dev; | |
904 | struct bin_attribute bindata_attr; | |
905 | void __iomem *base; | |
906 | }; | |
907 | ||
908 | static ssize_t txx9_sram_read(struct kobject *kobj, | |
909 | struct bin_attribute *bin_attr, | |
910 | char *buf, loff_t pos, size_t size) | |
911 | { | |
912 | struct txx9_sramc_sysdev *dev = bin_attr->private; | |
913 | size_t ramsize = bin_attr->size; | |
914 | ||
915 | if (pos >= ramsize) | |
916 | return 0; | |
917 | if (pos + size > ramsize) | |
918 | size = ramsize - pos; | |
919 | memcpy_fromio(buf, dev->base + pos, size); | |
920 | return size; | |
921 | } | |
922 | ||
923 | static ssize_t txx9_sram_write(struct kobject *kobj, | |
924 | struct bin_attribute *bin_attr, | |
925 | char *buf, loff_t pos, size_t size) | |
926 | { | |
927 | struct txx9_sramc_sysdev *dev = bin_attr->private; | |
928 | size_t ramsize = bin_attr->size; | |
929 | ||
930 | if (pos >= ramsize) | |
931 | return 0; | |
932 | if (pos + size > ramsize) | |
933 | size = ramsize - pos; | |
934 | memcpy_toio(dev->base + pos, buf, size); | |
935 | return size; | |
936 | } | |
937 | ||
938 | void __init txx9_sramc_init(struct resource *r) | |
939 | { | |
940 | struct txx9_sramc_sysdev *dev; | |
941 | size_t size; | |
942 | int err; | |
943 | ||
944 | if (!txx9_sramc_sysdev_class.name) { | |
945 | txx9_sramc_sysdev_class.name = "txx9_sram"; | |
946 | err = sysdev_class_register(&txx9_sramc_sysdev_class); | |
947 | if (err) { | |
948 | txx9_sramc_sysdev_class.name = NULL; | |
949 | return; | |
950 | } | |
951 | } | |
952 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
953 | if (!dev) | |
954 | return; | |
955 | size = resource_size(r); | |
956 | dev->base = ioremap(r->start, size); | |
957 | if (!dev->base) | |
958 | goto exit; | |
959 | dev->dev.cls = &txx9_sramc_sysdev_class; | |
f937331b | 960 | sysfs_bin_attr_init(&dev->bindata_attr); |
c3b28ae2 AN |
961 | dev->bindata_attr.attr.name = "bindata"; |
962 | dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR; | |
963 | dev->bindata_attr.read = txx9_sram_read; | |
964 | dev->bindata_attr.write = txx9_sram_write; | |
965 | dev->bindata_attr.size = size; | |
966 | dev->bindata_attr.private = dev; | |
967 | err = sysdev_register(&dev->dev); | |
968 | if (err) | |
969 | goto exit; | |
970 | err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr); | |
971 | if (err) { | |
972 | sysdev_unregister(&dev->dev); | |
973 | goto exit; | |
974 | } | |
975 | return; | |
976 | exit: | |
977 | if (dev) { | |
978 | if (dev->base) | |
979 | iounmap(dev->base); | |
980 | kfree(dev); | |
981 | } | |
982 | } |