ARM: at91: move sam9261 SoC to common clk
[deliverable/linux.git] / arch / arm / mach-at91 / at91sam9rl.c
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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>
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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
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31/* --------------------------------------------------------------------
32 * Clocks
33 * -------------------------------------------------------------------- */
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34#if defined(CONFIG_OLD_CLK_AT91)
35#include "clock.h"
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36
37/*
38 * The peripheral clocks.
39 */
40static struct clk pioA_clk = {
41 .name = "pioA_clk",
42 .pmc_mask = 1 << AT91SAM9RL_ID_PIOA,
43 .type = CLK_TYPE_PERIPHERAL,
44};
45static struct clk pioB_clk = {
46 .name = "pioB_clk",
47 .pmc_mask = 1 << AT91SAM9RL_ID_PIOB,
48 .type = CLK_TYPE_PERIPHERAL,
49};
50static struct clk pioC_clk = {
51 .name = "pioC_clk",
52 .pmc_mask = 1 << AT91SAM9RL_ID_PIOC,
53 .type = CLK_TYPE_PERIPHERAL,
54};
55static struct clk pioD_clk = {
56 .name = "pioD_clk",
57 .pmc_mask = 1 << AT91SAM9RL_ID_PIOD,
58 .type = CLK_TYPE_PERIPHERAL,
59};
60static struct clk usart0_clk = {
61 .name = "usart0_clk",
62 .pmc_mask = 1 << AT91SAM9RL_ID_US0,
63 .type = CLK_TYPE_PERIPHERAL,
64};
65static struct clk usart1_clk = {
66 .name = "usart1_clk",
67 .pmc_mask = 1 << AT91SAM9RL_ID_US1,
68 .type = CLK_TYPE_PERIPHERAL,
69};
70static struct clk usart2_clk = {
71 .name = "usart2_clk",
72 .pmc_mask = 1 << AT91SAM9RL_ID_US2,
73 .type = CLK_TYPE_PERIPHERAL,
74};
75static struct clk usart3_clk = {
76 .name = "usart3_clk",
77 .pmc_mask = 1 << AT91SAM9RL_ID_US3,
78 .type = CLK_TYPE_PERIPHERAL,
79};
80static struct clk mmc_clk = {
81 .name = "mci_clk",
82 .pmc_mask = 1 << AT91SAM9RL_ID_MCI,
83 .type = CLK_TYPE_PERIPHERAL,
84};
85static struct clk twi0_clk = {
86 .name = "twi0_clk",
87 .pmc_mask = 1 << AT91SAM9RL_ID_TWI0,
88 .type = CLK_TYPE_PERIPHERAL,
89};
90static struct clk twi1_clk = {
91 .name = "twi1_clk",
92 .pmc_mask = 1 << AT91SAM9RL_ID_TWI1,
93 .type = CLK_TYPE_PERIPHERAL,
94};
95static struct clk spi_clk = {
96 .name = "spi_clk",
97 .pmc_mask = 1 << AT91SAM9RL_ID_SPI,
98 .type = CLK_TYPE_PERIPHERAL,
99};
100static struct clk ssc0_clk = {
101 .name = "ssc0_clk",
102 .pmc_mask = 1 << AT91SAM9RL_ID_SSC0,
103 .type = CLK_TYPE_PERIPHERAL,
104};
105static struct clk ssc1_clk = {
106 .name = "ssc1_clk",
107 .pmc_mask = 1 << AT91SAM9RL_ID_SSC1,
108 .type = CLK_TYPE_PERIPHERAL,
109};
110static struct clk tc0_clk = {
111 .name = "tc0_clk",
112 .pmc_mask = 1 << AT91SAM9RL_ID_TC0,
113 .type = CLK_TYPE_PERIPHERAL,
114};
115static struct clk tc1_clk = {
116 .name = "tc1_clk",
117 .pmc_mask = 1 << AT91SAM9RL_ID_TC1,
118 .type = CLK_TYPE_PERIPHERAL,
119};
120static struct clk tc2_clk = {
121 .name = "tc2_clk",
122 .pmc_mask = 1 << AT91SAM9RL_ID_TC2,
123 .type = CLK_TYPE_PERIPHERAL,
124};
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125static struct clk pwm_clk = {
126 .name = "pwm_clk",
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127 .pmc_mask = 1 << AT91SAM9RL_ID_PWMC,
128 .type = CLK_TYPE_PERIPHERAL,
129};
130static struct clk tsc_clk = {
131 .name = "tsc_clk",
132 .pmc_mask = 1 << AT91SAM9RL_ID_TSC,
133 .type = CLK_TYPE_PERIPHERAL,
134};
135static struct clk dma_clk = {
136 .name = "dma_clk",
137 .pmc_mask = 1 << AT91SAM9RL_ID_DMA,
138 .type = CLK_TYPE_PERIPHERAL,
139};
140static struct clk udphs_clk = {
141 .name = "udphs_clk",
142 .pmc_mask = 1 << AT91SAM9RL_ID_UDPHS,
143 .type = CLK_TYPE_PERIPHERAL,
144};
145static struct clk lcdc_clk = {
146 .name = "lcdc_clk",
147 .pmc_mask = 1 << AT91SAM9RL_ID_LCDC,
148 .type = CLK_TYPE_PERIPHERAL,
149};
150static struct clk ac97_clk = {
151 .name = "ac97_clk",
152 .pmc_mask = 1 << AT91SAM9RL_ID_AC97C,
153 .type = CLK_TYPE_PERIPHERAL,
154};
155
156static 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,
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175 &tsc_clk,
176 &dma_clk,
177 &udphs_clk,
178 &lcdc_clk,
179 &ac97_clk,
180 // irq0
181};
182
bd602995 183static struct clk_lookup periph_clocks_lookups[] = {
bbd44f6b 184 CLKDEV_CON_DEV_ID("hclk", "at91sam9rl-lcdfb.0", &lcdc_clk),
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185 CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk),
186 CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk),
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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),
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190 CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk),
191 CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk),
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192 CLKDEV_CON_DEV_ID("pclk", "fffc0000.ssc", &ssc0_clk),
193 CLKDEV_CON_DEV_ID("pclk", "fffc4000.ssc", &ssc1_clk),
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194 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi0_clk),
195 CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.1", &twi1_clk),
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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),
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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),
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217};
218
219static 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
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227/*
228 * The two programmable clocks.
229 * You must configure pin multiplexing to bring these signals out.
230 */
231static struct clk pck0 = {
232 .name = "pck0",
233 .pmc_mask = AT91_PMC_PCK0,
234 .type = CLK_TYPE_PROGRAMMABLE,
235 .id = 0,
236};
237static struct clk pck1 = {
238 .name = "pck1",
239 .pmc_mask = AT91_PMC_PCK1,
240 .type = CLK_TYPE_PROGRAMMABLE,
241 .id = 1,
242};
243
244static 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
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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
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256 clk_register(&pck0);
257 clk_register(&pck1);
258}
72a3fe97 259#endif
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260
261/* --------------------------------------------------------------------
262 * GPIO
263 * -------------------------------------------------------------------- */
264
1a2d9156 265static struct at91_gpio_bank at91sam9rl_gpio[] __initdata = {
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266 {
267 .id = AT91SAM9RL_ID_PIOA,
80e91cb8 268 .regbase = AT91SAM9RL_BASE_PIOA,
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269 }, {
270 .id = AT91SAM9RL_ID_PIOB,
80e91cb8 271 .regbase = AT91SAM9RL_BASE_PIOB,
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272 }, {
273 .id = AT91SAM9RL_ID_PIOC,
80e91cb8 274 .regbase = AT91SAM9RL_BASE_PIOC,
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275 }, {
276 .id = AT91SAM9RL_ID_PIOD,
80e91cb8 277 .regbase = AT91SAM9RL_BASE_PIOD,
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278 }
279};
280
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281/* --------------------------------------------------------------------
282 * AT91SAM9RL processor initialization
283 * -------------------------------------------------------------------- */
284
21d08b9d 285static 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) {
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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
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302static 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);
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311}
312
46539374 313static 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
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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 */
332static 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 367AT91_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 376AT91_SOC_END
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