at91: move register clocks to soc generic init
[deliverable/linux.git] / arch / arm / mach-at91 / at91sam9261.c
CommitLineData
62c1660d 1/*
9d041268 2 * arch/arm/mach-at91/at91sam9261.c
62c1660d
AV
3 *
4 * Copyright (C) 2005 SAN People
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>
3ef2fb42 14#include <linux/pm.h>
62c1660d 15
80b02c17 16#include <asm/irq.h>
62c1660d
AV
17#include <asm/mach/arch.h>
18#include <asm/mach/map.h>
b319ff80 19#include <mach/cpu.h>
a09e64fb
RK
20#include <mach/at91sam9261.h>
21#include <mach/at91_pmc.h>
22#include <mach/at91_rstc.h>
23#include <mach/at91_shdwc.h>
62c1660d 24
21d08b9d 25#include "soc.h"
62c1660d
AV
26#include "generic.h"
27#include "clock.h"
28
b319ff80
NF
29static struct map_desc at91sam9261_sram_desc[] __initdata = {
30 {
62c1660d
AV
31 .virtual = AT91_IO_VIRT_BASE - AT91SAM9261_SRAM_SIZE,
32 .pfn = __phys_to_pfn(AT91SAM9261_SRAM_BASE),
33 .length = AT91SAM9261_SRAM_SIZE,
34 .type = MT_DEVICE,
35 },
36};
37
b319ff80
NF
38static struct map_desc at91sam9g10_sram_desc[] __initdata = {
39 {
40 .virtual = AT91_IO_VIRT_BASE - AT91SAM9G10_SRAM_SIZE,
41 .pfn = __phys_to_pfn(AT91SAM9G10_SRAM_BASE),
42 .length = AT91SAM9G10_SRAM_SIZE,
43 .type = MT_DEVICE,
44 },
45};
46
62c1660d
AV
47/* --------------------------------------------------------------------
48 * Clocks
49 * -------------------------------------------------------------------- */
50
51/*
52 * The peripheral clocks.
53 */
54static struct clk pioA_clk = {
55 .name = "pioA_clk",
56 .pmc_mask = 1 << AT91SAM9261_ID_PIOA,
57 .type = CLK_TYPE_PERIPHERAL,
58};
59static struct clk pioB_clk = {
60 .name = "pioB_clk",
61 .pmc_mask = 1 << AT91SAM9261_ID_PIOB,
62 .type = CLK_TYPE_PERIPHERAL,
63};
64static struct clk pioC_clk = {
65 .name = "pioC_clk",
66 .pmc_mask = 1 << AT91SAM9261_ID_PIOC,
67 .type = CLK_TYPE_PERIPHERAL,
68};
69static struct clk usart0_clk = {
70 .name = "usart0_clk",
71 .pmc_mask = 1 << AT91SAM9261_ID_US0,
72 .type = CLK_TYPE_PERIPHERAL,
73};
74static struct clk usart1_clk = {
75 .name = "usart1_clk",
76 .pmc_mask = 1 << AT91SAM9261_ID_US1,
77 .type = CLK_TYPE_PERIPHERAL,
78};
79static struct clk usart2_clk = {
80 .name = "usart2_clk",
81 .pmc_mask = 1 << AT91SAM9261_ID_US2,
82 .type = CLK_TYPE_PERIPHERAL,
83};
84static struct clk mmc_clk = {
85 .name = "mci_clk",
86 .pmc_mask = 1 << AT91SAM9261_ID_MCI,
87 .type = CLK_TYPE_PERIPHERAL,
88};
89static struct clk udc_clk = {
90 .name = "udc_clk",
91 .pmc_mask = 1 << AT91SAM9261_ID_UDP,
92 .type = CLK_TYPE_PERIPHERAL,
93};
94static struct clk twi_clk = {
95 .name = "twi_clk",
96 .pmc_mask = 1 << AT91SAM9261_ID_TWI,
97 .type = CLK_TYPE_PERIPHERAL,
98};
99static struct clk spi0_clk = {
100 .name = "spi0_clk",
101 .pmc_mask = 1 << AT91SAM9261_ID_SPI0,
102 .type = CLK_TYPE_PERIPHERAL,
103};
104static struct clk spi1_clk = {
105 .name = "spi1_clk",
106 .pmc_mask = 1 << AT91SAM9261_ID_SPI1,
107 .type = CLK_TYPE_PERIPHERAL,
108};
e8788bab
AV
109static struct clk ssc0_clk = {
110 .name = "ssc0_clk",
111 .pmc_mask = 1 << AT91SAM9261_ID_SSC0,
112 .type = CLK_TYPE_PERIPHERAL,
113};
114static struct clk ssc1_clk = {
115 .name = "ssc1_clk",
116 .pmc_mask = 1 << AT91SAM9261_ID_SSC1,
117 .type = CLK_TYPE_PERIPHERAL,
118};
119static struct clk ssc2_clk = {
120 .name = "ssc2_clk",
121 .pmc_mask = 1 << AT91SAM9261_ID_SSC2,
122 .type = CLK_TYPE_PERIPHERAL,
123};
c177a1e7
AV
124static struct clk tc0_clk = {
125 .name = "tc0_clk",
126 .pmc_mask = 1 << AT91SAM9261_ID_TC0,
127 .type = CLK_TYPE_PERIPHERAL,
128};
129static struct clk tc1_clk = {
130 .name = "tc1_clk",
131 .pmc_mask = 1 << AT91SAM9261_ID_TC1,
132 .type = CLK_TYPE_PERIPHERAL,
133};
134static struct clk tc2_clk = {
135 .name = "tc2_clk",
136 .pmc_mask = 1 << AT91SAM9261_ID_TC2,
137 .type = CLK_TYPE_PERIPHERAL,
138};
62c1660d
AV
139static struct clk ohci_clk = {
140 .name = "ohci_clk",
141 .pmc_mask = 1 << AT91SAM9261_ID_UHP,
142 .type = CLK_TYPE_PERIPHERAL,
143};
144static struct clk lcdc_clk = {
145 .name = "lcdc_clk",
146 .pmc_mask = 1 << AT91SAM9261_ID_LCDC,
147 .type = CLK_TYPE_PERIPHERAL,
148};
149
150static struct clk *periph_clocks[] __initdata = {
151 &pioA_clk,
152 &pioB_clk,
153 &pioC_clk,
154 &usart0_clk,
155 &usart1_clk,
156 &usart2_clk,
157 &mmc_clk,
158 &udc_clk,
159 &twi_clk,
160 &spi0_clk,
161 &spi1_clk,
e8788bab
AV
162 &ssc0_clk,
163 &ssc1_clk,
164 &ssc2_clk,
c177a1e7
AV
165 &tc0_clk,
166 &tc1_clk,
167 &tc2_clk,
62c1660d
AV
168 &ohci_clk,
169 &lcdc_clk,
170 // irq0 .. irq2
171};
172
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JCPV
173static struct clk_lookup periph_clocks_lookups[] = {
174 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
175 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
176 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
177 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
178 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc1_clk),
179 CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
180 CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
181 CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
182};
183
184static struct clk_lookup usart_clocks_lookups[] = {
185 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
186 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
187 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
188 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
189};
190
62c1660d
AV
191/*
192 * The four programmable clocks.
193 * You must configure pin multiplexing to bring these signals out.
194 */
195static struct clk pck0 = {
196 .name = "pck0",
197 .pmc_mask = AT91_PMC_PCK0,
198 .type = CLK_TYPE_PROGRAMMABLE,
199 .id = 0,
200};
201static struct clk pck1 = {
202 .name = "pck1",
203 .pmc_mask = AT91_PMC_PCK1,
204 .type = CLK_TYPE_PROGRAMMABLE,
205 .id = 1,
206};
207static struct clk pck2 = {
208 .name = "pck2",
209 .pmc_mask = AT91_PMC_PCK2,
210 .type = CLK_TYPE_PROGRAMMABLE,
211 .id = 2,
212};
213static struct clk pck3 = {
214 .name = "pck3",
215 .pmc_mask = AT91_PMC_PCK3,
216 .type = CLK_TYPE_PROGRAMMABLE,
217 .id = 3,
218};
219
220/* HClocks */
221static struct clk hck0 = {
222 .name = "hck0",
223 .pmc_mask = AT91_PMC_HCK0,
224 .type = CLK_TYPE_SYSTEM,
225 .id = 0,
226};
227static struct clk hck1 = {
228 .name = "hck1",
229 .pmc_mask = AT91_PMC_HCK1,
230 .type = CLK_TYPE_SYSTEM,
231 .id = 1,
232};
233
234static void __init at91sam9261_register_clocks(void)
235{
236 int i;
237
238 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
239 clk_register(periph_clocks[i]);
240
bd602995
JCPV
241 clkdev_add_table(periph_clocks_lookups,
242 ARRAY_SIZE(periph_clocks_lookups));
243 clkdev_add_table(usart_clocks_lookups,
244 ARRAY_SIZE(usart_clocks_lookups));
245
62c1660d
AV
246 clk_register(&pck0);
247 clk_register(&pck1);
248 clk_register(&pck2);
249 clk_register(&pck3);
250
251 clk_register(&hck0);
252 clk_register(&hck1);
253}
254
bd602995
JCPV
255static struct clk_lookup console_clock_lookup;
256
257void __init at91sam9261_set_console_clock(int id)
258{
259 if (id >= ARRAY_SIZE(usart_clocks_lookups))
260 return;
261
262 console_clock_lookup.con_id = "usart";
263 console_clock_lookup.clk = usart_clocks_lookups[id].clk;
264 clkdev_add(&console_clock_lookup);
265}
266
62c1660d
AV
267/* --------------------------------------------------------------------
268 * GPIO
269 * -------------------------------------------------------------------- */
270
271static struct at91_gpio_bank at91sam9261_gpio[] = {
272 {
273 .id = AT91SAM9261_ID_PIOA,
274 .offset = AT91_PIOA,
275 .clock = &pioA_clk,
276 }, {
277 .id = AT91SAM9261_ID_PIOB,
278 .offset = AT91_PIOB,
279 .clock = &pioB_clk,
280 }, {
281 .id = AT91SAM9261_ID_PIOC,
282 .offset = AT91_PIOC,
283 .clock = &pioC_clk,
284 }
285};
286
3ef2fb42
AV
287static void at91sam9261_poweroff(void)
288{
289 at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
290}
291
62c1660d
AV
292
293/* --------------------------------------------------------------------
294 * AT91SAM9261 processor initialization
295 * -------------------------------------------------------------------- */
296
21d08b9d 297static void __init at91sam9261_map_io(void)
62c1660d 298{
b319ff80
NF
299 if (cpu_is_at91sam9g10())
300 iotable_init(at91sam9g10_sram_desc, ARRAY_SIZE(at91sam9g10_sram_desc));
301 else
302 iotable_init(at91sam9261_sram_desc, ARRAY_SIZE(at91sam9261_sram_desc));
1b021a3b 303}
b319ff80 304
46539374 305static void __init at91sam9261_initialize(void)
1b021a3b 306{
bb413db5 307 at91_arch_reset = at91sam9_alt_reset;
3ef2fb42 308 pm_power_off = at91sam9261_poweroff;
62c1660d
AV
309 at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1)
310 | (1 << AT91SAM9261_ID_IRQ2);
311
62c1660d
AV
312 /* Register GPIO subsystem */
313 at91_gpio_init(at91sam9261_gpio, 3);
314}
315
316/* --------------------------------------------------------------------
317 * Interrupt initialization
318 * -------------------------------------------------------------------- */
319
320/*
321 * The default interrupt priority levels (0 = lowest, 7 = highest).
322 */
323static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = {
324 7, /* Advanced Interrupt Controller */
325 7, /* System Peripherals */
7cbed2b5
AV
326 1, /* Parallel IO Controller A */
327 1, /* Parallel IO Controller B */
328 1, /* Parallel IO Controller C */
62c1660d 329 0,
7cbed2b5
AV
330 5, /* USART 0 */
331 5, /* USART 1 */
332 5, /* USART 2 */
62c1660d 333 0, /* Multimedia Card Interface */
7cbed2b5
AV
334 2, /* USB Device Port */
335 6, /* Two-Wire Interface */
336 5, /* Serial Peripheral Interface 0 */
337 5, /* Serial Peripheral Interface 1 */
338 4, /* Serial Synchronous Controller 0 */
339 4, /* Serial Synchronous Controller 1 */
340 4, /* Serial Synchronous Controller 2 */
62c1660d
AV
341 0, /* Timer Counter 0 */
342 0, /* Timer Counter 1 */
343 0, /* Timer Counter 2 */
7cbed2b5 344 2, /* USB Host port */
62c1660d
AV
345 3, /* LCD Controller */
346 0,
347 0,
348 0,
349 0,
350 0,
351 0,
352 0,
353 0, /* Advanced Interrupt Controller */
354 0, /* Advanced Interrupt Controller */
355 0, /* Advanced Interrupt Controller */
356};
357
8c3583b6 358struct at91_init_soc __initdata at91sam9261_soc = {
21d08b9d 359 .map_io = at91sam9261_map_io,
92100c12 360 .default_irq_priority = at91sam9261_default_irq_priority,
51ddec76 361 .register_clocks = at91sam9261_register_clocks,
21d08b9d
JCPV
362 .init = at91sam9261_initialize,
363};
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