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8f590d45 | 1 | /* |
2 | * arch/arm/mach-spear6xx/spear6xx.c | |
3 | * | |
4 | * SPEAr6XX machines common source file | |
5 | * | |
6 | * Copyright (C) 2009 ST Microelectronics | |
7 | * Rajeev Kumar<rajeev-dlh.kumar@st.com> | |
8 | * | |
9652e8bd SR |
9 | * Copyright 2012 Stefan Roese <sr@denx.de> |
10 | * | |
8f590d45 | 11 | * This file is licensed under the terms of the GNU General Public |
12 | * License version 2. This program is licensed "as is" without any | |
13 | * warranty of any kind, whether express or implied. | |
14 | */ | |
15 | ||
0b7ee717 | 16 | #include <linux/amba/pl08x.h> |
5019f0b1 AB |
17 | #include <linux/clk.h> |
18 | #include <linux/err.h> | |
e9c51558 | 19 | #include <linux/irqchip.h> |
9652e8bd SR |
20 | #include <linux/of.h> |
21 | #include <linux/of_address.h> | |
9652e8bd | 22 | #include <linux/of_platform.h> |
3a95b9fb | 23 | #include <linux/amba/pl080.h> |
8f590d45 | 24 | #include <asm/mach/arch.h> |
5019f0b1 AB |
25 | #include <asm/mach/time.h> |
26 | #include <asm/mach/map.h> | |
2b9c613c AB |
27 | #include "pl080.h" |
28 | #include "generic.h" | |
5019f0b1 | 29 | #include <mach/spear.h> |
d9909ebe | 30 | #include <mach/misc_regs.h> |
8f590d45 | 31 | |
0b7ee717 VK |
32 | /* dmac device registration */ |
33 | static struct pl08x_channel_data spear600_dma_info[] = { | |
34 | { | |
35 | .bus_id = "ssp1_rx", | |
36 | .min_signal = 0, | |
37 | .max_signal = 0, | |
38 | .muxval = 0, | |
0b7ee717 VK |
39 | .periph_buses = PL08X_AHB1, |
40 | }, { | |
41 | .bus_id = "ssp1_tx", | |
42 | .min_signal = 1, | |
43 | .max_signal = 1, | |
44 | .muxval = 0, | |
0b7ee717 VK |
45 | .periph_buses = PL08X_AHB1, |
46 | }, { | |
47 | .bus_id = "uart0_rx", | |
48 | .min_signal = 2, | |
49 | .max_signal = 2, | |
50 | .muxval = 0, | |
0b7ee717 VK |
51 | .periph_buses = PL08X_AHB1, |
52 | }, { | |
53 | .bus_id = "uart0_tx", | |
54 | .min_signal = 3, | |
55 | .max_signal = 3, | |
56 | .muxval = 0, | |
0b7ee717 VK |
57 | .periph_buses = PL08X_AHB1, |
58 | }, { | |
59 | .bus_id = "uart1_rx", | |
60 | .min_signal = 4, | |
61 | .max_signal = 4, | |
62 | .muxval = 0, | |
0b7ee717 VK |
63 | .periph_buses = PL08X_AHB1, |
64 | }, { | |
65 | .bus_id = "uart1_tx", | |
66 | .min_signal = 5, | |
67 | .max_signal = 5, | |
68 | .muxval = 0, | |
0b7ee717 VK |
69 | .periph_buses = PL08X_AHB1, |
70 | }, { | |
71 | .bus_id = "ssp2_rx", | |
72 | .min_signal = 6, | |
73 | .max_signal = 6, | |
74 | .muxval = 0, | |
0b7ee717 VK |
75 | .periph_buses = PL08X_AHB2, |
76 | }, { | |
77 | .bus_id = "ssp2_tx", | |
78 | .min_signal = 7, | |
79 | .max_signal = 7, | |
80 | .muxval = 0, | |
0b7ee717 VK |
81 | .periph_buses = PL08X_AHB2, |
82 | }, { | |
83 | .bus_id = "ssp0_rx", | |
84 | .min_signal = 8, | |
85 | .max_signal = 8, | |
86 | .muxval = 0, | |
0b7ee717 VK |
87 | .periph_buses = PL08X_AHB1, |
88 | }, { | |
89 | .bus_id = "ssp0_tx", | |
90 | .min_signal = 9, | |
91 | .max_signal = 9, | |
92 | .muxval = 0, | |
0b7ee717 VK |
93 | .periph_buses = PL08X_AHB1, |
94 | }, { | |
95 | .bus_id = "i2c_rx", | |
96 | .min_signal = 10, | |
97 | .max_signal = 10, | |
98 | .muxval = 0, | |
0b7ee717 VK |
99 | .periph_buses = PL08X_AHB1, |
100 | }, { | |
101 | .bus_id = "i2c_tx", | |
102 | .min_signal = 11, | |
103 | .max_signal = 11, | |
104 | .muxval = 0, | |
0b7ee717 VK |
105 | .periph_buses = PL08X_AHB1, |
106 | }, { | |
107 | .bus_id = "irda", | |
108 | .min_signal = 12, | |
109 | .max_signal = 12, | |
110 | .muxval = 0, | |
0b7ee717 VK |
111 | .periph_buses = PL08X_AHB1, |
112 | }, { | |
113 | .bus_id = "adc", | |
114 | .min_signal = 13, | |
115 | .max_signal = 13, | |
116 | .muxval = 0, | |
0b7ee717 VK |
117 | .periph_buses = PL08X_AHB2, |
118 | }, { | |
119 | .bus_id = "to_jpeg", | |
120 | .min_signal = 14, | |
121 | .max_signal = 14, | |
122 | .muxval = 0, | |
0b7ee717 VK |
123 | .periph_buses = PL08X_AHB1, |
124 | }, { | |
125 | .bus_id = "from_jpeg", | |
126 | .min_signal = 15, | |
127 | .max_signal = 15, | |
128 | .muxval = 0, | |
0b7ee717 VK |
129 | .periph_buses = PL08X_AHB1, |
130 | }, { | |
131 | .bus_id = "ras0_rx", | |
132 | .min_signal = 0, | |
133 | .max_signal = 0, | |
134 | .muxval = 1, | |
0b7ee717 VK |
135 | .periph_buses = PL08X_AHB1, |
136 | }, { | |
137 | .bus_id = "ras0_tx", | |
138 | .min_signal = 1, | |
139 | .max_signal = 1, | |
140 | .muxval = 1, | |
0b7ee717 VK |
141 | .periph_buses = PL08X_AHB1, |
142 | }, { | |
143 | .bus_id = "ras1_rx", | |
144 | .min_signal = 2, | |
145 | .max_signal = 2, | |
146 | .muxval = 1, | |
0b7ee717 VK |
147 | .periph_buses = PL08X_AHB1, |
148 | }, { | |
149 | .bus_id = "ras1_tx", | |
150 | .min_signal = 3, | |
151 | .max_signal = 3, | |
152 | .muxval = 1, | |
0b7ee717 VK |
153 | .periph_buses = PL08X_AHB1, |
154 | }, { | |
155 | .bus_id = "ras2_rx", | |
156 | .min_signal = 4, | |
157 | .max_signal = 4, | |
158 | .muxval = 1, | |
0b7ee717 VK |
159 | .periph_buses = PL08X_AHB1, |
160 | }, { | |
161 | .bus_id = "ras2_tx", | |
162 | .min_signal = 5, | |
163 | .max_signal = 5, | |
164 | .muxval = 1, | |
0b7ee717 VK |
165 | .periph_buses = PL08X_AHB1, |
166 | }, { | |
167 | .bus_id = "ras3_rx", | |
168 | .min_signal = 6, | |
169 | .max_signal = 6, | |
170 | .muxval = 1, | |
0b7ee717 VK |
171 | .periph_buses = PL08X_AHB1, |
172 | }, { | |
173 | .bus_id = "ras3_tx", | |
174 | .min_signal = 7, | |
175 | .max_signal = 7, | |
176 | .muxval = 1, | |
0b7ee717 VK |
177 | .periph_buses = PL08X_AHB1, |
178 | }, { | |
179 | .bus_id = "ras4_rx", | |
180 | .min_signal = 8, | |
181 | .max_signal = 8, | |
182 | .muxval = 1, | |
0b7ee717 VK |
183 | .periph_buses = PL08X_AHB1, |
184 | }, { | |
185 | .bus_id = "ras4_tx", | |
186 | .min_signal = 9, | |
187 | .max_signal = 9, | |
188 | .muxval = 1, | |
0b7ee717 VK |
189 | .periph_buses = PL08X_AHB1, |
190 | }, { | |
191 | .bus_id = "ras5_rx", | |
192 | .min_signal = 10, | |
193 | .max_signal = 10, | |
194 | .muxval = 1, | |
0b7ee717 VK |
195 | .periph_buses = PL08X_AHB1, |
196 | }, { | |
197 | .bus_id = "ras5_tx", | |
198 | .min_signal = 11, | |
199 | .max_signal = 11, | |
200 | .muxval = 1, | |
0b7ee717 VK |
201 | .periph_buses = PL08X_AHB1, |
202 | }, { | |
203 | .bus_id = "ras6_rx", | |
204 | .min_signal = 12, | |
205 | .max_signal = 12, | |
206 | .muxval = 1, | |
0b7ee717 VK |
207 | .periph_buses = PL08X_AHB1, |
208 | }, { | |
209 | .bus_id = "ras6_tx", | |
210 | .min_signal = 13, | |
211 | .max_signal = 13, | |
212 | .muxval = 1, | |
0b7ee717 VK |
213 | .periph_buses = PL08X_AHB1, |
214 | }, { | |
215 | .bus_id = "ras7_rx", | |
216 | .min_signal = 14, | |
217 | .max_signal = 14, | |
218 | .muxval = 1, | |
0b7ee717 VK |
219 | .periph_buses = PL08X_AHB1, |
220 | }, { | |
221 | .bus_id = "ras7_tx", | |
222 | .min_signal = 15, | |
223 | .max_signal = 15, | |
224 | .muxval = 1, | |
0b7ee717 VK |
225 | .periph_buses = PL08X_AHB1, |
226 | }, { | |
227 | .bus_id = "ext0_rx", | |
228 | .min_signal = 0, | |
229 | .max_signal = 0, | |
230 | .muxval = 2, | |
0b7ee717 VK |
231 | .periph_buses = PL08X_AHB2, |
232 | }, { | |
233 | .bus_id = "ext0_tx", | |
234 | .min_signal = 1, | |
235 | .max_signal = 1, | |
236 | .muxval = 2, | |
0b7ee717 VK |
237 | .periph_buses = PL08X_AHB2, |
238 | }, { | |
239 | .bus_id = "ext1_rx", | |
240 | .min_signal = 2, | |
241 | .max_signal = 2, | |
242 | .muxval = 2, | |
0b7ee717 VK |
243 | .periph_buses = PL08X_AHB2, |
244 | }, { | |
245 | .bus_id = "ext1_tx", | |
246 | .min_signal = 3, | |
247 | .max_signal = 3, | |
248 | .muxval = 2, | |
0b7ee717 VK |
249 | .periph_buses = PL08X_AHB2, |
250 | }, { | |
251 | .bus_id = "ext2_rx", | |
252 | .min_signal = 4, | |
253 | .max_signal = 4, | |
254 | .muxval = 2, | |
0b7ee717 VK |
255 | .periph_buses = PL08X_AHB2, |
256 | }, { | |
257 | .bus_id = "ext2_tx", | |
258 | .min_signal = 5, | |
259 | .max_signal = 5, | |
260 | .muxval = 2, | |
0b7ee717 VK |
261 | .periph_buses = PL08X_AHB2, |
262 | }, { | |
263 | .bus_id = "ext3_rx", | |
264 | .min_signal = 6, | |
265 | .max_signal = 6, | |
266 | .muxval = 2, | |
0b7ee717 VK |
267 | .periph_buses = PL08X_AHB2, |
268 | }, { | |
269 | .bus_id = "ext3_tx", | |
270 | .min_signal = 7, | |
271 | .max_signal = 7, | |
272 | .muxval = 2, | |
0b7ee717 VK |
273 | .periph_buses = PL08X_AHB2, |
274 | }, { | |
275 | .bus_id = "ext4_rx", | |
276 | .min_signal = 8, | |
277 | .max_signal = 8, | |
278 | .muxval = 2, | |
0b7ee717 VK |
279 | .periph_buses = PL08X_AHB2, |
280 | }, { | |
281 | .bus_id = "ext4_tx", | |
282 | .min_signal = 9, | |
283 | .max_signal = 9, | |
284 | .muxval = 2, | |
0b7ee717 VK |
285 | .periph_buses = PL08X_AHB2, |
286 | }, { | |
287 | .bus_id = "ext5_rx", | |
288 | .min_signal = 10, | |
289 | .max_signal = 10, | |
290 | .muxval = 2, | |
0b7ee717 VK |
291 | .periph_buses = PL08X_AHB2, |
292 | }, { | |
293 | .bus_id = "ext5_tx", | |
294 | .min_signal = 11, | |
295 | .max_signal = 11, | |
296 | .muxval = 2, | |
0b7ee717 VK |
297 | .periph_buses = PL08X_AHB2, |
298 | }, { | |
299 | .bus_id = "ext6_rx", | |
300 | .min_signal = 12, | |
301 | .max_signal = 12, | |
302 | .muxval = 2, | |
0b7ee717 VK |
303 | .periph_buses = PL08X_AHB2, |
304 | }, { | |
305 | .bus_id = "ext6_tx", | |
306 | .min_signal = 13, | |
307 | .max_signal = 13, | |
308 | .muxval = 2, | |
0b7ee717 VK |
309 | .periph_buses = PL08X_AHB2, |
310 | }, { | |
311 | .bus_id = "ext7_rx", | |
312 | .min_signal = 14, | |
313 | .max_signal = 14, | |
314 | .muxval = 2, | |
0b7ee717 VK |
315 | .periph_buses = PL08X_AHB2, |
316 | }, { | |
317 | .bus_id = "ext7_tx", | |
318 | .min_signal = 15, | |
319 | .max_signal = 15, | |
320 | .muxval = 2, | |
0b7ee717 VK |
321 | .periph_buses = PL08X_AHB2, |
322 | }, | |
323 | }; | |
324 | ||
325 | struct pl08x_platform_data pl080_plat_data = { | |
326 | .memcpy_channel = { | |
327 | .bus_id = "memcpy", | |
dc8d5f8d RK |
328 | .cctl_memcpy = |
329 | (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \ | |
0b7ee717 VK |
330 | PL080_BSIZE_16 << PL080_CONTROL_DB_SIZE_SHIFT | \ |
331 | PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT | \ | |
332 | PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT | \ | |
333 | PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE | \ | |
334 | PL080_CONTROL_PROT_SYS), | |
335 | }, | |
336 | .lli_buses = PL08X_AHB1, | |
337 | .mem_buses = PL08X_AHB1, | |
338 | .get_signal = pl080_get_signal, | |
339 | .put_signal = pl080_put_signal, | |
340 | .slave_channels = spear600_dma_info, | |
341 | .num_slave_channels = ARRAY_SIZE(spear600_dma_info), | |
342 | }; | |
343 | ||
5019f0b1 AB |
344 | /* |
345 | * Following will create 16MB static virtual/physical mappings | |
346 | * PHYSICAL VIRTUAL | |
347 | * 0xF0000000 0xF0000000 | |
348 | * 0xF1000000 0xF1000000 | |
349 | * 0xD0000000 0xFD000000 | |
350 | * 0xFC000000 0xFC000000 | |
351 | */ | |
352 | struct map_desc spear6xx_io_desc[] __initdata = { | |
8f590d45 | 353 | { |
d9909ebe | 354 | .virtual = (unsigned long)VA_SPEAR6XX_ML_CPU_BASE, |
d42799b7 | 355 | .pfn = __phys_to_pfn(SPEAR_ICM3_ML1_2_BASE), |
5019f0b1 | 356 | .length = 2 * SZ_16M, |
8f590d45 | 357 | .type = MT_DEVICE |
5019f0b1 | 358 | }, { |
d9909ebe | 359 | .virtual = (unsigned long)VA_SPEAR_ICM1_2_BASE, |
d42799b7 | 360 | .pfn = __phys_to_pfn(SPEAR_ICM1_2_BASE), |
5019f0b1 | 361 | .length = SZ_16M, |
8f590d45 | 362 | .type = MT_DEVICE |
363 | }, { | |
d9909ebe | 364 | .virtual = (unsigned long)VA_SPEAR_ICM3_SMI_CTRL_BASE, |
d42799b7 | 365 | .pfn = __phys_to_pfn(SPEAR_ICM3_SMI_CTRL_BASE), |
5019f0b1 | 366 | .length = SZ_16M, |
8f590d45 | 367 | .type = MT_DEVICE |
368 | }, | |
369 | }; | |
370 | ||
371 | /* This will create static memory mapping for selected devices */ | |
372 | void __init spear6xx_map_io(void) | |
373 | { | |
374 | iotable_init(spear6xx_io_desc, ARRAY_SIZE(spear6xx_io_desc)); | |
8f590d45 | 375 | } |
5c881d9a | 376 | |
6bb27d73 | 377 | void __init spear6xx_timer_init(void) |
5c881d9a | 378 | { |
a8f4bf0e | 379 | char pclk_name[] = "pll3_clk"; |
5c881d9a SH |
380 | struct clk *gpt_clk, *pclk; |
381 | ||
d9909ebe | 382 | spear6xx_clk_init(MISC_BASE); |
5df33a62 | 383 | |
5c881d9a SH |
384 | /* get the system timer clock */ |
385 | gpt_clk = clk_get_sys("gpt0", NULL); | |
386 | if (IS_ERR(gpt_clk)) { | |
387 | pr_err("%s:couldn't get clk for gpt\n", __func__); | |
388 | BUG(); | |
389 | } | |
390 | ||
391 | /* get the suitable parent clock for timer*/ | |
392 | pclk = clk_get(NULL, pclk_name); | |
393 | if (IS_ERR(pclk)) { | |
394 | pr_err("%s:couldn't get %s as parent for gpt\n", | |
395 | __func__, pclk_name); | |
396 | BUG(); | |
397 | } | |
398 | ||
399 | clk_set_parent(gpt_clk, pclk); | |
400 | clk_put(gpt_clk); | |
401 | clk_put(pclk); | |
402 | ||
30551c01 | 403 | spear_setup_of_timer(); |
5c881d9a SH |
404 | } |
405 | ||
0b7ee717 VK |
406 | /* Add auxdata to pass platform data */ |
407 | struct of_dev_auxdata spear6xx_auxdata_lookup[] __initdata = { | |
d42799b7 | 408 | OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL, |
0b7ee717 VK |
409 | &pl080_plat_data), |
410 | {} | |
411 | }; | |
412 | ||
9652e8bd SR |
413 | static void __init spear600_dt_init(void) |
414 | { | |
0b7ee717 VK |
415 | of_platform_populate(NULL, of_default_bus_match_table, |
416 | spear6xx_auxdata_lookup, NULL); | |
9652e8bd SR |
417 | } |
418 | ||
419 | static const char *spear600_dt_board_compat[] = { | |
420 | "st,spear600", | |
421 | NULL | |
422 | }; | |
423 | ||
9652e8bd SR |
424 | DT_MACHINE_START(SPEAR600_DT, "ST SPEAr600 (Flattened Device Tree)") |
425 | .map_io = spear6xx_map_io, | |
e9c51558 | 426 | .init_irq = irqchip_init, |
6bb27d73 | 427 | .init_time = spear6xx_timer_init, |
9652e8bd SR |
428 | .init_machine = spear600_dt_init, |
429 | .restart = spear_restart, | |
430 | .dt_compat = spear600_dt_board_compat, | |
431 | MACHINE_END |