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