Commit | Line | Data |
---|---|---|
789b23bc NF |
1 | /* |
2 | * Chip-specific setup code for the AT91SAM9G45 family | |
3 | * | |
4 | * Copyright (C) 2009 Atmel Corporation. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/pm.h> | |
15 | ||
16 | #include <asm/irq.h> | |
17 | #include <asm/mach/arch.h> | |
18 | #include <asm/mach/map.h> | |
19 | #include <mach/at91sam9g45.h> | |
20 | #include <mach/at91_pmc.h> | |
21 | #include <mach/at91_rstc.h> | |
22 | #include <mach/at91_shdwc.h> | |
5f9f0a41 | 23 | #include <mach/cpu.h> |
789b23bc | 24 | |
21d08b9d | 25 | #include "soc.h" |
789b23bc NF |
26 | #include "generic.h" |
27 | #include "clock.h" | |
28 | ||
789b23bc NF |
29 | /* -------------------------------------------------------------------- |
30 | * Clocks | |
31 | * -------------------------------------------------------------------- */ | |
32 | ||
33 | /* | |
34 | * The peripheral clocks. | |
35 | */ | |
36 | static struct clk pioA_clk = { | |
37 | .name = "pioA_clk", | |
38 | .pmc_mask = 1 << AT91SAM9G45_ID_PIOA, | |
39 | .type = CLK_TYPE_PERIPHERAL, | |
40 | }; | |
41 | static struct clk pioB_clk = { | |
42 | .name = "pioB_clk", | |
43 | .pmc_mask = 1 << AT91SAM9G45_ID_PIOB, | |
44 | .type = CLK_TYPE_PERIPHERAL, | |
45 | }; | |
46 | static struct clk pioC_clk = { | |
47 | .name = "pioC_clk", | |
48 | .pmc_mask = 1 << AT91SAM9G45_ID_PIOC, | |
49 | .type = CLK_TYPE_PERIPHERAL, | |
50 | }; | |
51 | static struct clk pioDE_clk = { | |
52 | .name = "pioDE_clk", | |
53 | .pmc_mask = 1 << AT91SAM9G45_ID_PIODE, | |
54 | .type = CLK_TYPE_PERIPHERAL, | |
55 | }; | |
56 | static struct clk usart0_clk = { | |
57 | .name = "usart0_clk", | |
58 | .pmc_mask = 1 << AT91SAM9G45_ID_US0, | |
59 | .type = CLK_TYPE_PERIPHERAL, | |
60 | }; | |
61 | static struct clk usart1_clk = { | |
62 | .name = "usart1_clk", | |
63 | .pmc_mask = 1 << AT91SAM9G45_ID_US1, | |
64 | .type = CLK_TYPE_PERIPHERAL, | |
65 | }; | |
66 | static struct clk usart2_clk = { | |
67 | .name = "usart2_clk", | |
68 | .pmc_mask = 1 << AT91SAM9G45_ID_US2, | |
69 | .type = CLK_TYPE_PERIPHERAL, | |
70 | }; | |
71 | static struct clk usart3_clk = { | |
72 | .name = "usart3_clk", | |
73 | .pmc_mask = 1 << AT91SAM9G45_ID_US3, | |
74 | .type = CLK_TYPE_PERIPHERAL, | |
75 | }; | |
76 | static struct clk mmc0_clk = { | |
77 | .name = "mci0_clk", | |
78 | .pmc_mask = 1 << AT91SAM9G45_ID_MCI0, | |
79 | .type = CLK_TYPE_PERIPHERAL, | |
80 | }; | |
81 | static struct clk twi0_clk = { | |
82 | .name = "twi0_clk", | |
83 | .pmc_mask = 1 << AT91SAM9G45_ID_TWI0, | |
84 | .type = CLK_TYPE_PERIPHERAL, | |
85 | }; | |
86 | static struct clk twi1_clk = { | |
87 | .name = "twi1_clk", | |
88 | .pmc_mask = 1 << AT91SAM9G45_ID_TWI1, | |
89 | .type = CLK_TYPE_PERIPHERAL, | |
90 | }; | |
91 | static struct clk spi0_clk = { | |
92 | .name = "spi0_clk", | |
93 | .pmc_mask = 1 << AT91SAM9G45_ID_SPI0, | |
94 | .type = CLK_TYPE_PERIPHERAL, | |
95 | }; | |
96 | static struct clk spi1_clk = { | |
97 | .name = "spi1_clk", | |
98 | .pmc_mask = 1 << AT91SAM9G45_ID_SPI1, | |
99 | .type = CLK_TYPE_PERIPHERAL, | |
100 | }; | |
101 | static struct clk ssc0_clk = { | |
102 | .name = "ssc0_clk", | |
103 | .pmc_mask = 1 << AT91SAM9G45_ID_SSC0, | |
104 | .type = CLK_TYPE_PERIPHERAL, | |
105 | }; | |
106 | static struct clk ssc1_clk = { | |
107 | .name = "ssc1_clk", | |
108 | .pmc_mask = 1 << AT91SAM9G45_ID_SSC1, | |
109 | .type = CLK_TYPE_PERIPHERAL, | |
110 | }; | |
ab64511c FG |
111 | static struct clk tcb0_clk = { |
112 | .name = "tcb0_clk", | |
789b23bc NF |
113 | .pmc_mask = 1 << AT91SAM9G45_ID_TCB, |
114 | .type = CLK_TYPE_PERIPHERAL, | |
115 | }; | |
116 | static struct clk pwm_clk = { | |
117 | .name = "pwm_clk", | |
118 | .pmc_mask = 1 << AT91SAM9G45_ID_PWMC, | |
119 | .type = CLK_TYPE_PERIPHERAL, | |
120 | }; | |
121 | static struct clk tsc_clk = { | |
122 | .name = "tsc_clk", | |
123 | .pmc_mask = 1 << AT91SAM9G45_ID_TSC, | |
124 | .type = CLK_TYPE_PERIPHERAL, | |
125 | }; | |
126 | static struct clk dma_clk = { | |
127 | .name = "dma_clk", | |
128 | .pmc_mask = 1 << AT91SAM9G45_ID_DMA, | |
129 | .type = CLK_TYPE_PERIPHERAL, | |
130 | }; | |
131 | static struct clk uhphs_clk = { | |
132 | .name = "uhphs_clk", | |
133 | .pmc_mask = 1 << AT91SAM9G45_ID_UHPHS, | |
134 | .type = CLK_TYPE_PERIPHERAL, | |
135 | }; | |
136 | static struct clk lcdc_clk = { | |
137 | .name = "lcdc_clk", | |
138 | .pmc_mask = 1 << AT91SAM9G45_ID_LCDC, | |
139 | .type = CLK_TYPE_PERIPHERAL, | |
140 | }; | |
141 | static struct clk ac97_clk = { | |
142 | .name = "ac97_clk", | |
143 | .pmc_mask = 1 << AT91SAM9G45_ID_AC97C, | |
144 | .type = CLK_TYPE_PERIPHERAL, | |
145 | }; | |
146 | static struct clk macb_clk = { | |
147 | .name = "macb_clk", | |
148 | .pmc_mask = 1 << AT91SAM9G45_ID_EMAC, | |
149 | .type = CLK_TYPE_PERIPHERAL, | |
150 | }; | |
151 | static struct clk isi_clk = { | |
152 | .name = "isi_clk", | |
153 | .pmc_mask = 1 << AT91SAM9G45_ID_ISI, | |
154 | .type = CLK_TYPE_PERIPHERAL, | |
155 | }; | |
156 | static struct clk udphs_clk = { | |
157 | .name = "udphs_clk", | |
158 | .pmc_mask = 1 << AT91SAM9G45_ID_UDPHS, | |
159 | .type = CLK_TYPE_PERIPHERAL, | |
160 | }; | |
161 | static struct clk mmc1_clk = { | |
162 | .name = "mci1_clk", | |
163 | .pmc_mask = 1 << AT91SAM9G45_ID_MCI1, | |
164 | .type = CLK_TYPE_PERIPHERAL, | |
165 | }; | |
166 | ||
5f9f0a41 NF |
167 | /* Video decoder clock - Only for sam9m10/sam9m11 */ |
168 | static struct clk vdec_clk = { | |
169 | .name = "vdec_clk", | |
170 | .pmc_mask = 1 << AT91SAM9G45_ID_VDEC, | |
171 | .type = CLK_TYPE_PERIPHERAL, | |
172 | }; | |
173 | ||
789b23bc NF |
174 | static struct clk *periph_clocks[] __initdata = { |
175 | &pioA_clk, | |
176 | &pioB_clk, | |
177 | &pioC_clk, | |
178 | &pioDE_clk, | |
179 | &usart0_clk, | |
180 | &usart1_clk, | |
181 | &usart2_clk, | |
182 | &usart3_clk, | |
183 | &mmc0_clk, | |
184 | &twi0_clk, | |
185 | &twi1_clk, | |
186 | &spi0_clk, | |
187 | &spi1_clk, | |
188 | &ssc0_clk, | |
189 | &ssc1_clk, | |
ab64511c | 190 | &tcb0_clk, |
789b23bc NF |
191 | &pwm_clk, |
192 | &tsc_clk, | |
193 | &dma_clk, | |
194 | &uhphs_clk, | |
195 | &lcdc_clk, | |
196 | &ac97_clk, | |
197 | &macb_clk, | |
198 | &isi_clk, | |
199 | &udphs_clk, | |
200 | &mmc1_clk, | |
201 | // irq0 | |
bd602995 JCPV |
202 | }; |
203 | ||
204 | static struct clk_lookup periph_clocks_lookups[] = { | |
205 | /* One additional fake clock for ohci */ | |
206 | CLKDEV_CON_ID("ohci_clk", &uhphs_clk), | |
9d87159e JCPV |
207 | CLKDEV_CON_DEV_ID("ehci_clk", "atmel-ehci", &uhphs_clk), |
208 | CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk), | |
209 | CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk), | |
210 | CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.0", &mmc0_clk), | |
211 | CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.1", &mmc1_clk), | |
bd602995 JCPV |
212 | CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk), |
213 | CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk), | |
214 | CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb0_clk), | |
215 | CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk), | |
216 | CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk), | |
217 | CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk), | |
218 | }; | |
219 | ||
220 | static struct clk_lookup usart_clocks_lookups[] = { | |
221 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck), | |
222 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk), | |
223 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk), | |
224 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk), | |
225 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk), | |
789b23bc NF |
226 | }; |
227 | ||
228 | /* | |
229 | * The two programmable clocks. | |
230 | * You must configure pin multiplexing to bring these signals out. | |
231 | */ | |
232 | static struct clk pck0 = { | |
233 | .name = "pck0", | |
234 | .pmc_mask = AT91_PMC_PCK0, | |
235 | .type = CLK_TYPE_PROGRAMMABLE, | |
236 | .id = 0, | |
237 | }; | |
238 | static struct clk pck1 = { | |
239 | .name = "pck1", | |
240 | .pmc_mask = AT91_PMC_PCK1, | |
241 | .type = CLK_TYPE_PROGRAMMABLE, | |
242 | .id = 1, | |
243 | }; | |
244 | ||
245 | static void __init at91sam9g45_register_clocks(void) | |
246 | { | |
247 | int i; | |
248 | ||
249 | for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) | |
250 | clk_register(periph_clocks[i]); | |
251 | ||
bd602995 JCPV |
252 | clkdev_add_table(periph_clocks_lookups, |
253 | ARRAY_SIZE(periph_clocks_lookups)); | |
254 | clkdev_add_table(usart_clocks_lookups, | |
255 | ARRAY_SIZE(usart_clocks_lookups)); | |
256 | ||
5f9f0a41 NF |
257 | if (cpu_is_at91sam9m10() || cpu_is_at91sam9m11()) |
258 | clk_register(&vdec_clk); | |
259 | ||
789b23bc NF |
260 | clk_register(&pck0); |
261 | clk_register(&pck1); | |
262 | } | |
263 | ||
bd602995 JCPV |
264 | static struct clk_lookup console_clock_lookup; |
265 | ||
266 | void __init at91sam9g45_set_console_clock(int id) | |
267 | { | |
268 | if (id >= ARRAY_SIZE(usart_clocks_lookups)) | |
269 | return; | |
270 | ||
271 | console_clock_lookup.con_id = "usart"; | |
272 | console_clock_lookup.clk = usart_clocks_lookups[id].clk; | |
273 | clkdev_add(&console_clock_lookup); | |
274 | } | |
275 | ||
789b23bc NF |
276 | /* -------------------------------------------------------------------- |
277 | * GPIO | |
278 | * -------------------------------------------------------------------- */ | |
279 | ||
280 | static struct at91_gpio_bank at91sam9g45_gpio[] = { | |
281 | { | |
282 | .id = AT91SAM9G45_ID_PIOA, | |
283 | .offset = AT91_PIOA, | |
284 | .clock = &pioA_clk, | |
285 | }, { | |
286 | .id = AT91SAM9G45_ID_PIOB, | |
287 | .offset = AT91_PIOB, | |
288 | .clock = &pioB_clk, | |
289 | }, { | |
290 | .id = AT91SAM9G45_ID_PIOC, | |
291 | .offset = AT91_PIOC, | |
292 | .clock = &pioC_clk, | |
293 | }, { | |
294 | .id = AT91SAM9G45_ID_PIODE, | |
295 | .offset = AT91_PIOD, | |
296 | .clock = &pioDE_clk, | |
297 | }, { | |
298 | .id = AT91SAM9G45_ID_PIODE, | |
299 | .offset = AT91_PIOE, | |
300 | .clock = &pioDE_clk, | |
301 | } | |
302 | }; | |
303 | ||
304 | static void at91sam9g45_reset(void) | |
305 | { | |
306 | at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST); | |
307 | } | |
308 | ||
309 | static void at91sam9g45_poweroff(void) | |
310 | { | |
311 | at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW); | |
312 | } | |
313 | ||
314 | ||
315 | /* -------------------------------------------------------------------- | |
316 | * AT91SAM9G45 processor initialization | |
317 | * -------------------------------------------------------------------- */ | |
318 | ||
21d08b9d | 319 | static void __init at91sam9g45_map_io(void) |
789b23bc | 320 | { |
f0051d82 | 321 | at91_init_sram(0, AT91SAM9G45_SRAM_BASE, AT91SAM9G45_SRAM_SIZE); |
1b021a3b | 322 | } |
789b23bc | 323 | |
46539374 | 324 | static void __init at91sam9g45_initialize(void) |
1b021a3b | 325 | { |
789b23bc NF |
326 | at91_arch_reset = at91sam9g45_reset; |
327 | pm_power_off = at91sam9g45_poweroff; | |
328 | at91_extern_irq = (1 << AT91SAM9G45_ID_IRQ0); | |
329 | ||
789b23bc NF |
330 | /* Register GPIO subsystem */ |
331 | at91_gpio_init(at91sam9g45_gpio, 5); | |
332 | } | |
333 | ||
334 | /* -------------------------------------------------------------------- | |
335 | * Interrupt initialization | |
336 | * -------------------------------------------------------------------- */ | |
337 | ||
338 | /* | |
339 | * The default interrupt priority levels (0 = lowest, 7 = highest). | |
340 | */ | |
341 | static unsigned int at91sam9g45_default_irq_priority[NR_AIC_IRQS] __initdata = { | |
342 | 7, /* Advanced Interrupt Controller (FIQ) */ | |
343 | 7, /* System Peripherals */ | |
344 | 1, /* Parallel IO Controller A */ | |
345 | 1, /* Parallel IO Controller B */ | |
346 | 1, /* Parallel IO Controller C */ | |
347 | 1, /* Parallel IO Controller D and E */ | |
348 | 0, | |
349 | 5, /* USART 0 */ | |
350 | 5, /* USART 1 */ | |
351 | 5, /* USART 2 */ | |
352 | 5, /* USART 3 */ | |
353 | 0, /* Multimedia Card Interface 0 */ | |
354 | 6, /* Two-Wire Interface 0 */ | |
355 | 6, /* Two-Wire Interface 1 */ | |
356 | 5, /* Serial Peripheral Interface 0 */ | |
357 | 5, /* Serial Peripheral Interface 1 */ | |
358 | 4, /* Serial Synchronous Controller 0 */ | |
359 | 4, /* Serial Synchronous Controller 1 */ | |
360 | 0, /* Timer Counter 0, 1, 2, 3, 4 and 5 */ | |
361 | 0, /* Pulse Width Modulation Controller */ | |
362 | 0, /* Touch Screen Controller */ | |
363 | 0, /* DMA Controller */ | |
364 | 2, /* USB Host High Speed port */ | |
365 | 3, /* LDC Controller */ | |
366 | 5, /* AC97 Controller */ | |
367 | 3, /* Ethernet */ | |
368 | 0, /* Image Sensor Interface */ | |
369 | 2, /* USB Device High speed port */ | |
370 | 0, | |
371 | 0, /* Multimedia Card Interface 1 */ | |
372 | 0, | |
373 | 0, /* Advanced Interrupt Controller (IRQ0) */ | |
374 | }; | |
375 | ||
8c3583b6 | 376 | struct at91_init_soc __initdata at91sam9g45_soc = { |
21d08b9d | 377 | .map_io = at91sam9g45_map_io, |
92100c12 | 378 | .default_irq_priority = at91sam9g45_default_irq_priority, |
51ddec76 | 379 | .register_clocks = at91sam9g45_register_clocks, |
21d08b9d JCPV |
380 | .init = at91sam9g45_initialize, |
381 | }; |