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877d7720 AV |
1 | /* |
2 | * arch/arm/mach-at91/at91sam9rl.c | |
3 | * | |
4 | * Copyright (C) 2005 SAN People | |
5 | * Copyright (C) 2007 Atmel Corporation | |
6 | * | |
7 | * This file is subject to the terms and conditions of the GNU General Public | |
8 | * License. See the file COPYING in the main directory of this archive for | |
9 | * more details. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
2edb90ae | 13 | #include <linux/clk/at91_pmc.h> |
877d7720 | 14 | |
c9dfafba | 15 | #include <asm/proc-fns.h> |
80b02c17 | 16 | #include <asm/irq.h> |
877d7720 AV |
17 | #include <asm/mach/arch.h> |
18 | #include <asm/mach/map.h> | |
9f97da78 | 19 | #include <asm/system_misc.h> |
a09e64fb | 20 | #include <mach/cpu.h> |
8c3583b6 | 21 | #include <mach/at91_dbgu.h> |
a09e64fb | 22 | #include <mach/at91sam9rl.h> |
ac11a1d4 | 23 | #include <mach/hardware.h> |
877d7720 | 24 | |
a510b9ba | 25 | #include "at91_aic.h" |
f0995d08 | 26 | #include "at91_rstc.h" |
21d08b9d | 27 | #include "soc.h" |
877d7720 | 28 | #include "generic.h" |
faee0cc3 | 29 | #include "sam9_smc.h" |
5ad945ea | 30 | #include "pm.h" |
877d7720 | 31 | |
877d7720 AV |
32 | /* -------------------------------------------------------------------- |
33 | * Clocks | |
34 | * -------------------------------------------------------------------- */ | |
72a3fe97 AB |
35 | #if defined(CONFIG_OLD_CLK_AT91) |
36 | #include "clock.h" | |
877d7720 AV |
37 | |
38 | /* | |
39 | * The peripheral clocks. | |
40 | */ | |
41 | static struct clk pioA_clk = { | |
42 | .name = "pioA_clk", | |
43 | .pmc_mask = 1 << AT91SAM9RL_ID_PIOA, | |
44 | .type = CLK_TYPE_PERIPHERAL, | |
45 | }; | |
46 | static struct clk pioB_clk = { | |
47 | .name = "pioB_clk", | |
48 | .pmc_mask = 1 << AT91SAM9RL_ID_PIOB, | |
49 | .type = CLK_TYPE_PERIPHERAL, | |
50 | }; | |
51 | static struct clk pioC_clk = { | |
52 | .name = "pioC_clk", | |
53 | .pmc_mask = 1 << AT91SAM9RL_ID_PIOC, | |
54 | .type = CLK_TYPE_PERIPHERAL, | |
55 | }; | |
56 | static struct clk pioD_clk = { | |
57 | .name = "pioD_clk", | |
58 | .pmc_mask = 1 << AT91SAM9RL_ID_PIOD, | |
59 | .type = CLK_TYPE_PERIPHERAL, | |
60 | }; | |
61 | static struct clk usart0_clk = { | |
62 | .name = "usart0_clk", | |
63 | .pmc_mask = 1 << AT91SAM9RL_ID_US0, | |
64 | .type = CLK_TYPE_PERIPHERAL, | |
65 | }; | |
66 | static struct clk usart1_clk = { | |
67 | .name = "usart1_clk", | |
68 | .pmc_mask = 1 << AT91SAM9RL_ID_US1, | |
69 | .type = CLK_TYPE_PERIPHERAL, | |
70 | }; | |
71 | static struct clk usart2_clk = { | |
72 | .name = "usart2_clk", | |
73 | .pmc_mask = 1 << AT91SAM9RL_ID_US2, | |
74 | .type = CLK_TYPE_PERIPHERAL, | |
75 | }; | |
76 | static struct clk usart3_clk = { | |
77 | .name = "usart3_clk", | |
78 | .pmc_mask = 1 << AT91SAM9RL_ID_US3, | |
79 | .type = CLK_TYPE_PERIPHERAL, | |
80 | }; | |
81 | static struct clk mmc_clk = { | |
82 | .name = "mci_clk", | |
83 | .pmc_mask = 1 << AT91SAM9RL_ID_MCI, | |
84 | .type = CLK_TYPE_PERIPHERAL, | |
85 | }; | |
86 | static struct clk twi0_clk = { | |
87 | .name = "twi0_clk", | |
88 | .pmc_mask = 1 << AT91SAM9RL_ID_TWI0, | |
89 | .type = CLK_TYPE_PERIPHERAL, | |
90 | }; | |
91 | static struct clk twi1_clk = { | |
92 | .name = "twi1_clk", | |
93 | .pmc_mask = 1 << AT91SAM9RL_ID_TWI1, | |
94 | .type = CLK_TYPE_PERIPHERAL, | |
95 | }; | |
96 | static struct clk spi_clk = { | |
97 | .name = "spi_clk", | |
98 | .pmc_mask = 1 << AT91SAM9RL_ID_SPI, | |
99 | .type = CLK_TYPE_PERIPHERAL, | |
100 | }; | |
101 | static struct clk ssc0_clk = { | |
102 | .name = "ssc0_clk", | |
103 | .pmc_mask = 1 << AT91SAM9RL_ID_SSC0, | |
104 | .type = CLK_TYPE_PERIPHERAL, | |
105 | }; | |
106 | static struct clk ssc1_clk = { | |
107 | .name = "ssc1_clk", | |
108 | .pmc_mask = 1 << AT91SAM9RL_ID_SSC1, | |
109 | .type = CLK_TYPE_PERIPHERAL, | |
110 | }; | |
111 | static struct clk tc0_clk = { | |
112 | .name = "tc0_clk", | |
113 | .pmc_mask = 1 << AT91SAM9RL_ID_TC0, | |
114 | .type = CLK_TYPE_PERIPHERAL, | |
115 | }; | |
116 | static struct clk tc1_clk = { | |
117 | .name = "tc1_clk", | |
118 | .pmc_mask = 1 << AT91SAM9RL_ID_TC1, | |
119 | .type = CLK_TYPE_PERIPHERAL, | |
120 | }; | |
121 | static struct clk tc2_clk = { | |
122 | .name = "tc2_clk", | |
123 | .pmc_mask = 1 << AT91SAM9RL_ID_TC2, | |
124 | .type = CLK_TYPE_PERIPHERAL, | |
125 | }; | |
bb1ad68b AV |
126 | static struct clk pwm_clk = { |
127 | .name = "pwm_clk", | |
877d7720 AV |
128 | .pmc_mask = 1 << AT91SAM9RL_ID_PWMC, |
129 | .type = CLK_TYPE_PERIPHERAL, | |
130 | }; | |
131 | static struct clk tsc_clk = { | |
132 | .name = "tsc_clk", | |
133 | .pmc_mask = 1 << AT91SAM9RL_ID_TSC, | |
134 | .type = CLK_TYPE_PERIPHERAL, | |
135 | }; | |
136 | static struct clk dma_clk = { | |
137 | .name = "dma_clk", | |
138 | .pmc_mask = 1 << AT91SAM9RL_ID_DMA, | |
139 | .type = CLK_TYPE_PERIPHERAL, | |
140 | }; | |
141 | static struct clk udphs_clk = { | |
142 | .name = "udphs_clk", | |
143 | .pmc_mask = 1 << AT91SAM9RL_ID_UDPHS, | |
144 | .type = CLK_TYPE_PERIPHERAL, | |
145 | }; | |
146 | static struct clk lcdc_clk = { | |
147 | .name = "lcdc_clk", | |
148 | .pmc_mask = 1 << AT91SAM9RL_ID_LCDC, | |
149 | .type = CLK_TYPE_PERIPHERAL, | |
150 | }; | |
151 | static struct clk ac97_clk = { | |
152 | .name = "ac97_clk", | |
153 | .pmc_mask = 1 << AT91SAM9RL_ID_AC97C, | |
154 | .type = CLK_TYPE_PERIPHERAL, | |
155 | }; | |
b8ba9a40 AB |
156 | static struct clk adc_op_clk = { |
157 | .name = "adc_op_clk", | |
158 | .type = CLK_TYPE_PERIPHERAL, | |
159 | .rate_hz = 1000000, | |
160 | }; | |
877d7720 AV |
161 | |
162 | static struct clk *periph_clocks[] __initdata = { | |
163 | &pioA_clk, | |
164 | &pioB_clk, | |
165 | &pioC_clk, | |
166 | &pioD_clk, | |
167 | &usart0_clk, | |
168 | &usart1_clk, | |
169 | &usart2_clk, | |
170 | &usart3_clk, | |
171 | &mmc_clk, | |
172 | &twi0_clk, | |
173 | &twi1_clk, | |
174 | &spi_clk, | |
175 | &ssc0_clk, | |
176 | &ssc1_clk, | |
177 | &tc0_clk, | |
178 | &tc1_clk, | |
179 | &tc2_clk, | |
bb1ad68b | 180 | &pwm_clk, |
877d7720 AV |
181 | &tsc_clk, |
182 | &dma_clk, | |
183 | &udphs_clk, | |
184 | &lcdc_clk, | |
185 | &ac97_clk, | |
b8ba9a40 | 186 | &adc_op_clk, |
877d7720 AV |
187 | // irq0 |
188 | }; | |
189 | ||
bd602995 | 190 | static struct clk_lookup periph_clocks_lookups[] = { |
bbd44f6b | 191 | CLKDEV_CON_DEV_ID("hclk", "at91sam9rl-lcdfb.0", &lcdc_clk), |
9d87159e JCPV |
192 | CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk), |
193 | CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk), | |
bd602995 JCPV |
194 | CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk), |
195 | CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk), | |
196 | CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk), | |
636036d2 BS |
197 | CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk), |
198 | CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk), | |
099343c6 BS |
199 | CLKDEV_CON_DEV_ID("pclk", "fffc0000.ssc", &ssc0_clk), |
200 | CLKDEV_CON_DEV_ID("pclk", "fffc4000.ssc", &ssc1_clk), | |
fac368a0 NV |
201 | CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi0_clk), |
202 | CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.1", &twi1_clk), | |
60c07f5e | 203 | CLKDEV_CON_DEV_ID(NULL, "at91sam9rl-pwm", &pwm_clk), |
619d4a4b JCPV |
204 | CLKDEV_CON_ID("pioA", &pioA_clk), |
205 | CLKDEV_CON_ID("pioB", &pioB_clk), | |
206 | CLKDEV_CON_ID("pioC", &pioC_clk), | |
207 | CLKDEV_CON_ID("pioD", &pioD_clk), | |
09ab012a AB |
208 | /* more lookup table for DT entries */ |
209 | CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck), | |
210 | CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk), | |
211 | CLKDEV_CON_DEV_ID("usart", "ffffb400.serial", &usart1_clk), | |
212 | CLKDEV_CON_DEV_ID("usart", "ffffb800.serial", &usart2_clk), | |
213 | CLKDEV_CON_DEV_ID("usart", "ffffbc00.serial", &usart3_clk), | |
214 | CLKDEV_CON_DEV_ID("t0_clk", "fffa0000.timer", &tc0_clk), | |
215 | CLKDEV_CON_DEV_ID("t1_clk", "fffa0000.timer", &tc1_clk), | |
216 | CLKDEV_CON_DEV_ID("t2_clk", "fffa0000.timer", &tc2_clk), | |
217 | CLKDEV_CON_DEV_ID("mci_clk", "fffa4000.mmc", &mmc_clk), | |
218 | CLKDEV_CON_DEV_ID(NULL, "fffa8000.i2c", &twi0_clk), | |
219 | CLKDEV_CON_DEV_ID(NULL, "fffac000.i2c", &twi1_clk), | |
050208df | 220 | CLKDEV_CON_DEV_ID(NULL, "fffc8000.pwm", &pwm_clk), |
09ab012a AB |
221 | CLKDEV_CON_DEV_ID(NULL, "ffffc800.pwm", &pwm_clk), |
222 | CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk), | |
223 | CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk), | |
224 | CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_clk), | |
225 | CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioD_clk), | |
b8ba9a40 | 226 | CLKDEV_CON_ID("adc_clk", &tsc_clk), |
bd602995 JCPV |
227 | }; |
228 | ||
229 | static struct clk_lookup usart_clocks_lookups[] = { | |
230 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck), | |
231 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk), | |
232 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk), | |
233 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk), | |
234 | CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk), | |
235 | }; | |
236 | ||
877d7720 AV |
237 | /* |
238 | * The two programmable clocks. | |
239 | * You must configure pin multiplexing to bring these signals out. | |
240 | */ | |
241 | static struct clk pck0 = { | |
242 | .name = "pck0", | |
243 | .pmc_mask = AT91_PMC_PCK0, | |
244 | .type = CLK_TYPE_PROGRAMMABLE, | |
245 | .id = 0, | |
246 | }; | |
247 | static struct clk pck1 = { | |
248 | .name = "pck1", | |
249 | .pmc_mask = AT91_PMC_PCK1, | |
250 | .type = CLK_TYPE_PROGRAMMABLE, | |
251 | .id = 1, | |
252 | }; | |
253 | ||
254 | static void __init at91sam9rl_register_clocks(void) | |
255 | { | |
256 | int i; | |
257 | ||
258 | for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) | |
259 | clk_register(periph_clocks[i]); | |
260 | ||
bd602995 JCPV |
261 | clkdev_add_table(periph_clocks_lookups, |
262 | ARRAY_SIZE(periph_clocks_lookups)); | |
263 | clkdev_add_table(usart_clocks_lookups, | |
264 | ARRAY_SIZE(usart_clocks_lookups)); | |
265 | ||
877d7720 AV |
266 | clk_register(&pck0); |
267 | clk_register(&pck1); | |
268 | } | |
72a3fe97 | 269 | #endif |
877d7720 AV |
270 | |
271 | /* -------------------------------------------------------------------- | |
272 | * GPIO | |
273 | * -------------------------------------------------------------------- */ | |
274 | ||
1a2d9156 | 275 | static struct at91_gpio_bank at91sam9rl_gpio[] __initdata = { |
877d7720 AV |
276 | { |
277 | .id = AT91SAM9RL_ID_PIOA, | |
80e91cb8 | 278 | .regbase = AT91SAM9RL_BASE_PIOA, |
877d7720 AV |
279 | }, { |
280 | .id = AT91SAM9RL_ID_PIOB, | |
80e91cb8 | 281 | .regbase = AT91SAM9RL_BASE_PIOB, |
877d7720 AV |
282 | }, { |
283 | .id = AT91SAM9RL_ID_PIOC, | |
80e91cb8 | 284 | .regbase = AT91SAM9RL_BASE_PIOC, |
877d7720 AV |
285 | }, { |
286 | .id = AT91SAM9RL_ID_PIOD, | |
80e91cb8 | 287 | .regbase = AT91SAM9RL_BASE_PIOD, |
877d7720 AV |
288 | } |
289 | }; | |
290 | ||
877d7720 AV |
291 | /* -------------------------------------------------------------------- |
292 | * AT91SAM9RL processor initialization | |
293 | * -------------------------------------------------------------------- */ | |
294 | ||
21d08b9d | 295 | static void __init at91sam9rl_map_io(void) |
877d7720 | 296 | { |
8c3583b6 | 297 | unsigned long sram_size; |
877d7720 | 298 | |
8c3583b6 | 299 | switch (at91_soc_initdata.cidr & AT91_CIDR_SRAMSIZ) { |
877d7720 AV |
300 | case AT91_CIDR_SRAMSIZ_32K: |
301 | sram_size = 2 * SZ_16K; | |
302 | break; | |
303 | case AT91_CIDR_SRAMSIZ_16K: | |
304 | default: | |
305 | sram_size = SZ_16K; | |
306 | } | |
307 | ||
877d7720 | 308 | /* Map SRAM */ |
f0051d82 | 309 | at91_init_sram(0, AT91SAM9RL_SRAM_BASE, sram_size); |
1b021a3b | 310 | } |
877d7720 | 311 | |
cfa5a1fe JCPV |
312 | static void __init at91sam9rl_ioremap_registers(void) |
313 | { | |
f22deee5 | 314 | at91_ioremap_shdwc(AT91SAM9RL_BASE_SHDWC); |
e9f68b5c | 315 | at91_ioremap_rstc(AT91SAM9RL_BASE_RSTC); |
f363c407 | 316 | at91_ioremap_ramc(0, AT91SAM9RL_BASE_SDRAMC, 512); |
4ab0c599 | 317 | at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT); |
faee0cc3 | 318 | at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC); |
4342d647 | 319 | at91_ioremap_matrix(AT91SAM9RL_BASE_MATRIX); |
6b625891 | 320 | at91_pm_set_standby(at91sam9_sdram_standby); |
cfa5a1fe JCPV |
321 | } |
322 | ||
46539374 | 323 | static void __init at91sam9rl_initialize(void) |
1b021a3b | 324 | { |
0d781716 | 325 | arm_pm_idle = at91sam9_idle; |
1b2073e7 | 326 | arm_pm_restart = at91sam9_alt_restart; |
877d7720 | 327 | |
6de714c2 | 328 | at91_sysirq_mask_rtc(AT91SAM9RL_BASE_RTC); |
94c4c79f | 329 | at91_sysirq_mask_rtt(AT91SAM9RL_BASE_RTT); |
6de714c2 | 330 | |
877d7720 AV |
331 | /* Register GPIO subsystem */ |
332 | at91_gpio_init(at91sam9rl_gpio, 4); | |
333 | } | |
334 | ||
335 | /* -------------------------------------------------------------------- | |
336 | * Interrupt initialization | |
337 | * -------------------------------------------------------------------- */ | |
338 | ||
339 | /* | |
340 | * The default interrupt priority levels (0 = lowest, 7 = highest). | |
341 | */ | |
342 | static unsigned int at91sam9rl_default_irq_priority[NR_AIC_IRQS] __initdata = { | |
343 | 7, /* Advanced Interrupt Controller */ | |
344 | 7, /* System Peripherals */ | |
345 | 1, /* Parallel IO Controller A */ | |
346 | 1, /* Parallel IO Controller B */ | |
347 | 1, /* Parallel IO Controller C */ | |
348 | 1, /* Parallel IO Controller D */ | |
349 | 5, /* USART 0 */ | |
350 | 5, /* USART 1 */ | |
351 | 5, /* USART 2 */ | |
352 | 5, /* USART 3 */ | |
353 | 0, /* Multimedia Card Interface */ | |
354 | 6, /* Two-Wire Interface 0 */ | |
355 | 6, /* Two-Wire Interface 1 */ | |
356 | 5, /* Serial Peripheral Interface */ | |
357 | 4, /* Serial Synchronous Controller 0 */ | |
358 | 4, /* Serial Synchronous Controller 1 */ | |
359 | 0, /* Timer Counter 0 */ | |
360 | 0, /* Timer Counter 1 */ | |
361 | 0, /* Timer Counter 2 */ | |
362 | 0, | |
363 | 0, /* Touch Screen Controller */ | |
364 | 0, /* DMA Controller */ | |
365 | 2, /* USB Device High speed port */ | |
366 | 2, /* LCD Controller */ | |
367 | 6, /* AC97 Controller */ | |
368 | 0, | |
369 | 0, | |
370 | 0, | |
371 | 0, | |
372 | 0, | |
373 | 0, | |
374 | 0, /* Advanced Interrupt Controller */ | |
375 | }; | |
376 | ||
84ddb087 | 377 | AT91_SOC_START(at91sam9rl) |
21d08b9d | 378 | .map_io = at91sam9rl_map_io, |
92100c12 | 379 | .default_irq_priority = at91sam9rl_default_irq_priority, |
546c830c | 380 | .extern_irq = (1 << AT91SAM9RL_ID_IRQ0), |
cfa5a1fe | 381 | .ioremap_registers = at91sam9rl_ioremap_registers, |
72a3fe97 | 382 | #if defined(CONFIG_OLD_CLK_AT91) |
51ddec76 | 383 | .register_clocks = at91sam9rl_register_clocks, |
72a3fe97 | 384 | #endif |
21d08b9d | 385 | .init = at91sam9rl_initialize, |
8d39e0fd | 386 | AT91_SOC_END |