ARM: OMAP: Clear level-triggered GPIO interrupts in unmask hook
[linux-2.6-block.git] / arch / arm / plat-omap / devices.c
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1/*
2 * linux/arch/arm/plat-omap/devices.c
3 *
4 * Common platform device setup/initialization for OMAP1 and OMAP2
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
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12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16
17#include <asm/hardware.h>
18#include <asm/io.h>
19#include <asm/mach-types.h>
20#include <asm/mach/map.h>
21
22#include <asm/arch/tc.h>
23#include <asm/arch/board.h>
24#include <asm/arch/mux.h>
25#include <asm/arch/gpio.h>
9b6553cd 26#include <asm/arch/menelaus.h>
1a8bfa1e 27
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28#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
29
30#include "../plat-omap/dsp/dsp_common.h"
31
32static struct dsp_platform_data dsp_pdata = {
33 .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
34};
35
36static struct resource omap_dsp_resources[] = {
37 {
38 .name = "dsp_mmu",
39 .start = -1,
40 .flags = IORESOURCE_IRQ,
41 },
42};
43
44static struct platform_device omap_dsp_device = {
45 .name = "dsp",
46 .id = -1,
47 .num_resources = ARRAY_SIZE(omap_dsp_resources),
48 .resource = omap_dsp_resources,
49 .dev = {
50 .platform_data = &dsp_pdata,
51 },
52};
53
54static inline void omap_init_dsp(void)
55{
56 struct resource *res;
57 int irq;
58
59 if (cpu_is_omap15xx())
60 irq = INT_1510_DSP_MMU;
61 else if (cpu_is_omap16xx())
62 irq = INT_1610_DSP_MMU;
63 else if (cpu_is_omap24xx())
64 irq = INT_24XX_DSP_MMU;
65
66 res = platform_get_resource_byname(&omap_dsp_device,
67 IORESOURCE_IRQ, "dsp_mmu");
68 res->start = irq;
69
70 platform_device_register(&omap_dsp_device);
71}
72
73int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
74{
75 static DEFINE_MUTEX(dsp_pdata_lock);
76
77 mutex_init(&kdev->lock);
78
79 mutex_lock(&dsp_pdata_lock);
80 list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
81 mutex_unlock(&dsp_pdata_lock);
82
83 return 0;
84}
85EXPORT_SYMBOL(dsp_kfunc_device_register);
86
87#else
88static inline void omap_init_dsp(void) { }
89#endif /* CONFIG_OMAP_DSP */
90
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91/*-------------------------------------------------------------------------*/
92#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
93
94static void omap_init_kp(void)
95{
96 if (machine_is_omap_h2() || machine_is_omap_h3()) {
97 omap_cfg_reg(F18_1610_KBC0);
98 omap_cfg_reg(D20_1610_KBC1);
99 omap_cfg_reg(D19_1610_KBC2);
100 omap_cfg_reg(E18_1610_KBC3);
101 omap_cfg_reg(C21_1610_KBC4);
102
103 omap_cfg_reg(G18_1610_KBR0);
104 omap_cfg_reg(F19_1610_KBR1);
105 omap_cfg_reg(H14_1610_KBR2);
106 omap_cfg_reg(E20_1610_KBR3);
107 omap_cfg_reg(E19_1610_KBR4);
108 omap_cfg_reg(N19_1610_KBR5);
495f71db 109 } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
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110 omap_cfg_reg(E2_730_KBR0);
111 omap_cfg_reg(J7_730_KBR1);
112 omap_cfg_reg(E1_730_KBR2);
113 omap_cfg_reg(F3_730_KBR3);
114 omap_cfg_reg(D2_730_KBR4);
115
116 omap_cfg_reg(C2_730_KBC0);
117 omap_cfg_reg(D3_730_KBC1);
118 omap_cfg_reg(E4_730_KBC2);
119 omap_cfg_reg(F4_730_KBC3);
120 omap_cfg_reg(E3_730_KBC4);
121 } else if (machine_is_omap_h4()) {
122 omap_cfg_reg(T19_24XX_KBR0);
123 omap_cfg_reg(R19_24XX_KBR1);
124 omap_cfg_reg(V18_24XX_KBR2);
125 omap_cfg_reg(M21_24XX_KBR3);
126 omap_cfg_reg(E5__24XX_KBR4);
127 if (omap_has_menelaus()) {
128 omap_cfg_reg(B3__24XX_KBR5);
129 omap_cfg_reg(AA4_24XX_KBC2);
130 omap_cfg_reg(B13_24XX_KBC6);
131 } else {
132 omap_cfg_reg(M18_24XX_KBR5);
133 omap_cfg_reg(H19_24XX_KBC2);
134 omap_cfg_reg(N19_24XX_KBC6);
135 }
136 omap_cfg_reg(R20_24XX_KBC0);
137 omap_cfg_reg(M14_24XX_KBC1);
138 omap_cfg_reg(V17_24XX_KBC3);
139 omap_cfg_reg(P21_24XX_KBC4);
140 omap_cfg_reg(L14_24XX_KBC5);
141 }
142}
143#else
144static inline void omap_init_kp(void) {}
145#endif
146
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147/*-------------------------------------------------------------------------*/
148
149#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
150
151#ifdef CONFIG_ARCH_OMAP24XX
152#define OMAP_MMC1_BASE 0x4809c000
abc45e1d 153#define OMAP_MMC1_INT INT_24XX_MMC_IRQ
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154#else
155#define OMAP_MMC1_BASE 0xfffb7800
156#define OMAP_MMC1_INT INT_MMC
157#endif
158#define OMAP_MMC2_BASE 0xfffb7c00 /* omap16xx only */
159
160static struct omap_mmc_conf mmc1_conf;
161
162static u64 mmc1_dmamask = 0xffffffff;
163
164static struct resource mmc1_resources[] = {
165 {
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166 .start = OMAP_MMC1_BASE,
167 .end = OMAP_MMC1_BASE + 0x7f,
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168 .flags = IORESOURCE_MEM,
169 },
170 {
171 .start = OMAP_MMC1_INT,
172 .flags = IORESOURCE_IRQ,
173 },
174};
175
176static struct platform_device mmc_omap_device1 = {
177 .name = "mmci-omap",
178 .id = 1,
179 .dev = {
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180 .dma_mask = &mmc1_dmamask,
181 .platform_data = &mmc1_conf,
182 },
183 .num_resources = ARRAY_SIZE(mmc1_resources),
184 .resource = mmc1_resources,
185};
186
187#ifdef CONFIG_ARCH_OMAP16XX
188
189static struct omap_mmc_conf mmc2_conf;
190
191static u64 mmc2_dmamask = 0xffffffff;
192
193static struct resource mmc2_resources[] = {
194 {
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195 .start = OMAP_MMC2_BASE,
196 .end = OMAP_MMC2_BASE + 0x7f,
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197 .flags = IORESOURCE_MEM,
198 },
199 {
200 .start = INT_1610_MMC2,
201 .flags = IORESOURCE_IRQ,
202 },
203};
204
205static struct platform_device mmc_omap_device2 = {
206 .name = "mmci-omap",
207 .id = 2,
208 .dev = {
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209 .dma_mask = &mmc2_dmamask,
210 .platform_data = &mmc2_conf,
211 },
212 .num_resources = ARRAY_SIZE(mmc2_resources),
213 .resource = mmc2_resources,
214};
215#endif
216
217static void __init omap_init_mmc(void)
218{
219 const struct omap_mmc_config *mmc_conf;
220 const struct omap_mmc_conf *mmc;
221
222 /* NOTE: assumes MMC was never (wrongly) enabled */
223 mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config);
224 if (!mmc_conf)
225 return;
226
227 /* block 1 is always available and has just one pinout option */
228 mmc = &mmc_conf->mmc[0];
229 if (mmc->enabled) {
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230 if (cpu_is_omap24xx()) {
231 omap_cfg_reg(H18_24XX_MMC_CMD);
232 omap_cfg_reg(H15_24XX_MMC_CLKI);
233 omap_cfg_reg(G19_24XX_MMC_CLKO);
234 omap_cfg_reg(F20_24XX_MMC_DAT0);
235 omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
236 omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
237 } else {
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238 omap_cfg_reg(MMC_CMD);
239 omap_cfg_reg(MMC_CLK);
240 omap_cfg_reg(MMC_DAT0);
241 if (cpu_is_omap1710()) {
242 omap_cfg_reg(M15_1710_MMC_CLKI);
243 omap_cfg_reg(P19_1710_MMC_CMDDIR);
244 omap_cfg_reg(P20_1710_MMC_DATDIR0);
245 }
246 }
247 if (mmc->wire4) {
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248 if (cpu_is_omap24xx()) {
249 omap_cfg_reg(H14_24XX_MMC_DAT1);
250 omap_cfg_reg(E19_24XX_MMC_DAT2);
251 omap_cfg_reg(D19_24XX_MMC_DAT3);
252 omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
253 omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
254 omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
255 } else {
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256 omap_cfg_reg(MMC_DAT1);
257 /* NOTE: DAT2 can be on W10 (here) or M15 */
258 if (!mmc->nomux)
259 omap_cfg_reg(MMC_DAT2);
260 omap_cfg_reg(MMC_DAT3);
261 }
262 }
263 mmc1_conf = *mmc;
264 (void) platform_device_register(&mmc_omap_device1);
265 }
266
267#ifdef CONFIG_ARCH_OMAP16XX
268 /* block 2 is on newer chips, and has many pinout options */
269 mmc = &mmc_conf->mmc[1];
270 if (mmc->enabled) {
271 if (!mmc->nomux) {
272 omap_cfg_reg(Y8_1610_MMC2_CMD);
273 omap_cfg_reg(Y10_1610_MMC2_CLK);
274 omap_cfg_reg(R18_1610_MMC2_CLKIN);
275 omap_cfg_reg(W8_1610_MMC2_DAT0);
276 if (mmc->wire4) {
277 omap_cfg_reg(V8_1610_MMC2_DAT1);
278 omap_cfg_reg(W15_1610_MMC2_DAT2);
279 omap_cfg_reg(R10_1610_MMC2_DAT3);
280 }
281
282 /* These are needed for the level shifter */
283 omap_cfg_reg(V9_1610_MMC2_CMDDIR);
284 omap_cfg_reg(V5_1610_MMC2_DATDIR0);
285 omap_cfg_reg(W19_1610_MMC2_DATDIR1);
286 }
287
288 /* Feedback clock must be set on OMAP-1710 MMC2 */
289 if (cpu_is_omap1710())
290 omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
291 MOD_CONF_CTRL_1);
292 mmc2_conf = *mmc;
293 (void) platform_device_register(&mmc_omap_device2);
294 }
295#endif
296 return;
297}
298#else
299static inline void omap_init_mmc(void) {}
300#endif
301
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302/*-------------------------------------------------------------------------*/
303
304/* Numbering for the SPI-capable controllers when used for SPI:
305 * spi = 1
306 * uwire = 2
307 * mmc1..2 = 3..4
308 * mcbsp1..3 = 5..7
309 */
310
311#if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
312
313#define OMAP_UWIRE_BASE 0xfffb3000
314
315static struct resource uwire_resources[] = {
316 {
317 .start = OMAP_UWIRE_BASE,
318 .end = OMAP_UWIRE_BASE + 0x20,
319 .flags = IORESOURCE_MEM,
320 },
321};
322
323static struct platform_device omap_uwire_device = {
324 .name = "omap_uwire",
325 .id = -1,
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326 .num_resources = ARRAY_SIZE(uwire_resources),
327 .resource = uwire_resources,
328};
329
330static void omap_init_uwire(void)
331{
332 /* FIXME define and use a boot tag; not all boards will be hooking
333 * up devices to the microwire controller, and multi-board configs
334 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
335 */
336
337 /* board-specific code must configure chipselects (only a few
338 * are normally used) and SCLK/SDI/SDO (each has two choices).
339 */
340 (void) platform_device_register(&omap_uwire_device);
341}
342#else
343static inline void omap_init_uwire(void) {}
344#endif
345
346/*-------------------------------------------------------------------------*/
347
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348#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
349
350#ifdef CONFIG_ARCH_OMAP24XX
351#define OMAP_WDT_BASE 0x48022000
352#else
353#define OMAP_WDT_BASE 0xfffeb000
354#endif
355
356static struct resource wdt_resources[] = {
357 {
358 .start = OMAP_WDT_BASE,
359 .end = OMAP_WDT_BASE + 0x4f,
360 .flags = IORESOURCE_MEM,
361 },
362};
363
364static struct platform_device omap_wdt_device = {
365 .name = "omap_wdt",
366 .id = -1,
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367 .num_resources = ARRAY_SIZE(wdt_resources),
368 .resource = wdt_resources,
369};
370
371static void omap_init_wdt(void)
372{
373 (void) platform_device_register(&omap_wdt_device);
374}
375#else
376static inline void omap_init_wdt(void) {}
377#endif
378
379/*-------------------------------------------------------------------------*/
380
c40fae95 381#if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
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382
383#ifdef CONFIG_ARCH_OMAP24XX
384#define OMAP_RNG_BASE 0x480A0000
385#else
386#define OMAP_RNG_BASE 0xfffe5000
387#endif
388
389static struct resource rng_resources[] = {
390 {
391 .start = OMAP_RNG_BASE,
392 .end = OMAP_RNG_BASE + 0x4f,
393 .flags = IORESOURCE_MEM,
394 },
395};
396
397static struct platform_device omap_rng_device = {
398 .name = "omap_rng",
399 .id = -1,
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400 .num_resources = ARRAY_SIZE(rng_resources),
401 .resource = rng_resources,
402};
403
404static void omap_init_rng(void)
405{
406 (void) platform_device_register(&omap_rng_device);
407}
408#else
409static inline void omap_init_rng(void) {}
410#endif
411
1a8bfa1e
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412/*
413 * This gets called after board-specific INIT_MACHINE, and initializes most
414 * on-chip peripherals accessible on this board (except for few like USB):
415 *
416 * (a) Does any "standard config" pin muxing needed. Board-specific
417 * code will have muxed GPIO pins and done "nonstandard" setup;
418 * that code could live in the boot loader.
419 * (b) Populating board-specific platform_data with the data drivers
420 * rely on to handle wiring variations.
421 * (c) Creating platform devices as meaningful on this board and
422 * with this kernel configuration.
423 *
424 * Claiming GPIOs, and setting their direction and initial values, is the
425 * responsibility of the device drivers. So is responding to probe().
426 *
427 * Board-specific knowlege like creating devices or pin setup is to be
428 * kept out of drivers as much as possible. In particular, pin setup
429 * may be handled by the boot loader, and drivers should expect it will
430 * normally have been done by the time they're probed.
431 */
432static int __init omap_init_devices(void)
433{
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SMK
434/*
435 * Need to enable relevant once for 2430 SDP
436 */
437#ifndef CONFIG_MACH_OMAP_2430SDP
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438 /* please keep these calls, and their implementations above,
439 * in alphabetical order so they're easier to sort through.
440 */
c40fae95 441 omap_init_dsp();
9b6553cd 442 omap_init_kp();
1a8bfa1e 443 omap_init_mmc();
9b6553cd 444 omap_init_uwire();
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445 omap_init_wdt();
446 omap_init_rng();
56a25641 447#endif
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448 return 0;
449}
450arch_initcall(omap_init_devices);