blob: 05fdbd992c778eb044c6ec50911badcde887b35a [file] [log] [blame]
Tony Lindgren7c38cf02005-09-08 23:07:38 +01001/*
2 * linux/arch/arm/mach-omap1/devices.c
3 *
4 * OMAP1 platform device setup/initialization
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
Janusz Krzysztofik1a96edd2010-10-01 16:37:00 -070012#include <linux/dma-mapping.h>
Russell King2f8163b2011-07-26 10:53:52 +010013#include <linux/gpio.h>
Tony Lindgren7c38cf02005-09-08 23:07:38 +010014#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
Russell Kingd052d1b2005-10-29 19:07:23 +010017#include <linux/platform_device.h>
Cory Maccarronec5c4dce2010-01-08 10:29:05 -080018#include <linux/spi/spi.h>
Tony Lindgren7c38cf02005-09-08 23:07:38 +010019
Tony Lindgren7c38cf02005-09-08 23:07:38 +010020#include <asm/mach/map.h>
21
Tony Lindgrence491cf2009-10-20 09:40:47 -070022#include <plat/tc.h>
Tony Lindgrence491cf2009-10-20 09:40:47 -070023#include <plat/mux.h>
Tony Lindgren6c432f72012-04-23 15:56:37 -070024#include <plat/dma.h>
Tony Lindgrence491cf2009-10-20 09:40:47 -070025#include <plat/mmc.h>
Tony Lindgren7c38cf02005-09-08 23:07:38 +010026
Tony Lindgren68cb7002012-08-31 17:04:35 -070027#include <mach/omap7xx.h>
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080028#include <mach/camera.h>
29#include <mach/hardware.h>
30
31#include "common.h"
Tony Lindgrene9b70862011-11-11 10:15:11 -080032#include "clock.h"
33
Tony Lindgrenfcc76a82012-05-09 09:59:25 -070034#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
35
36static struct platform_device omap_pcm = {
37 .name = "omap-pcm-audio",
38 .id = -1,
39};
40
41static void omap_init_audio(void)
42{
43 platform_device_register(&omap_pcm);
44}
45
46#else
47static inline void omap_init_audio(void) {}
48#endif
49
Tony Lindgren7c38cf02005-09-08 23:07:38 +010050/*-------------------------------------------------------------------------*/
51
David Brownelldb68b182006-12-06 20:38:36 -080052#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
Tony Lindgren7c38cf02005-09-08 23:07:38 +010053
54#define OMAP_RTC_BASE 0xfffb4800
55
56static struct resource rtc_resources[] = {
57 {
58 .start = OMAP_RTC_BASE,
59 .end = OMAP_RTC_BASE + 0x5f,
60 .flags = IORESOURCE_MEM,
61 },
62 {
63 .start = INT_RTC_TIMER,
64 .flags = IORESOURCE_IRQ,
65 },
66 {
67 .start = INT_RTC_ALARM,
68 .flags = IORESOURCE_IRQ,
69 },
70};
71
72static struct platform_device omap_rtc_device = {
73 .name = "omap_rtc",
74 .id = -1,
Tony Lindgren7c38cf02005-09-08 23:07:38 +010075 .num_resources = ARRAY_SIZE(rtc_resources),
76 .resource = rtc_resources,
77};
78
79static void omap_init_rtc(void)
80{
81 (void) platform_device_register(&omap_rtc_device);
82}
83#else
84static inline void omap_init_rtc(void) {}
85#endif
86
Tony Lindgrenc40fae952006-12-07 13:58:10 -080087static inline void omap_init_mbox(void) { }
Tony Lindgrenc40fae952006-12-07 13:58:10 -080088
Tony Lindgrend8874662008-12-10 17:37:16 -080089/*-------------------------------------------------------------------------*/
90
91#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
92
93static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
94 int controller_nr)
95{
96 if (controller_nr == 0) {
Cory Maccarrone490a5662009-11-22 10:10:50 -080097 if (cpu_is_omap7xx()) {
98 omap_cfg_reg(MMC_7XX_CMD);
99 omap_cfg_reg(MMC_7XX_CLK);
100 omap_cfg_reg(MMC_7XX_DAT0);
101 } else {
102 omap_cfg_reg(MMC_CMD);
103 omap_cfg_reg(MMC_CLK);
104 omap_cfg_reg(MMC_DAT0);
105 }
106
Tony Lindgrend8874662008-12-10 17:37:16 -0800107 if (cpu_is_omap1710()) {
108 omap_cfg_reg(M15_1710_MMC_CLKI);
109 omap_cfg_reg(P19_1710_MMC_CMDDIR);
110 omap_cfg_reg(P20_1710_MMC_DATDIR0);
111 }
Cory Maccarrone490a5662009-11-22 10:10:50 -0800112 if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
Tony Lindgrend8874662008-12-10 17:37:16 -0800113 omap_cfg_reg(MMC_DAT1);
114 /* NOTE: DAT2 can be on W10 (here) or M15 */
115 if (!mmc_controller->slots[0].nomux)
116 omap_cfg_reg(MMC_DAT2);
117 omap_cfg_reg(MMC_DAT3);
118 }
119 }
120
121 /* Block 2 is on newer chips, and has many pinout options */
122 if (cpu_is_omap16xx() && controller_nr == 1) {
123 if (!mmc_controller->slots[1].nomux) {
124 omap_cfg_reg(Y8_1610_MMC2_CMD);
125 omap_cfg_reg(Y10_1610_MMC2_CLK);
126 omap_cfg_reg(R18_1610_MMC2_CLKIN);
127 omap_cfg_reg(W8_1610_MMC2_DAT0);
Tony Lindgren90c62bf2008-12-10 17:37:17 -0800128 if (mmc_controller->slots[1].wires == 4) {
Tony Lindgrend8874662008-12-10 17:37:16 -0800129 omap_cfg_reg(V8_1610_MMC2_DAT1);
130 omap_cfg_reg(W15_1610_MMC2_DAT2);
131 omap_cfg_reg(R10_1610_MMC2_DAT3);
132 }
133
134 /* These are needed for the level shifter */
135 omap_cfg_reg(V9_1610_MMC2_CMDDIR);
136 omap_cfg_reg(V5_1610_MMC2_DATDIR0);
137 omap_cfg_reg(W19_1610_MMC2_DATDIR1);
138 }
139
140 /* Feedback clock must be set on OMAP-1710 MMC2 */
141 if (cpu_is_omap1710())
142 omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
143 MOD_CONF_CTRL_1);
144 }
145}
146
Tony Lindgren6c432f72012-04-23 15:56:37 -0700147#define OMAP_MMC_NR_RES 4
Tony Lindgren5ff391d2012-04-23 15:56:36 -0700148
149/*
150 * Register MMC devices.
151 */
152static int __init omap_mmc_add(const char *name, int id, unsigned long base,
153 unsigned long size, unsigned int irq,
Tony Lindgren6c432f72012-04-23 15:56:37 -0700154 unsigned rx_req, unsigned tx_req,
Tony Lindgren5ff391d2012-04-23 15:56:36 -0700155 struct omap_mmc_platform_data *data)
156{
157 struct platform_device *pdev;
158 struct resource res[OMAP_MMC_NR_RES];
159 int ret;
160
161 pdev = platform_device_alloc(name, id);
162 if (!pdev)
163 return -ENOMEM;
164
165 memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
166 res[0].start = base;
167 res[0].end = base + size - 1;
168 res[0].flags = IORESOURCE_MEM;
169 res[1].start = res[1].end = irq;
170 res[1].flags = IORESOURCE_IRQ;
Tony Lindgren6c432f72012-04-23 15:56:37 -0700171 res[2].start = rx_req;
172 res[2].name = "rx";
173 res[2].flags = IORESOURCE_DMA;
174 res[3].start = tx_req;
175 res[3].name = "tx";
176 res[3].flags = IORESOURCE_DMA;
Tony Lindgren5ff391d2012-04-23 15:56:36 -0700177
178 ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
179 if (ret == 0)
180 ret = platform_device_add_data(pdev, data, sizeof(*data));
181 if (ret)
182 goto fail;
183
184 ret = platform_device_add(pdev);
185 if (ret)
186 goto fail;
187
188 /* return device handle to board setup code */
189 data->dev = &pdev->dev;
190 return 0;
191
192fail:
193 platform_device_put(pdev);
194 return ret;
195}
196
Tony Lindgrend8874662008-12-10 17:37:16 -0800197void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
198 int nr_controllers)
199{
200 int i;
201
202 for (i = 0; i < nr_controllers; i++) {
203 unsigned long base, size;
Tony Lindgren6c432f72012-04-23 15:56:37 -0700204 unsigned rx_req, tx_req;
Tony Lindgrend8874662008-12-10 17:37:16 -0800205 unsigned int irq = 0;
206
207 if (!mmc_data[i])
208 continue;
209
210 omap1_mmc_mux(mmc_data[i], i);
211
212 switch (i) {
213 case 0:
214 base = OMAP1_MMC1_BASE;
215 irq = INT_MMC;
Tony Lindgren6c432f72012-04-23 15:56:37 -0700216 rx_req = OMAP_DMA_MMC_RX;
217 tx_req = OMAP_DMA_MMC_TX;
Tony Lindgrend8874662008-12-10 17:37:16 -0800218 break;
219 case 1:
220 if (!cpu_is_omap16xx())
221 return;
222 base = OMAP1_MMC2_BASE;
223 irq = INT_1610_MMC2;
Tony Lindgren6c432f72012-04-23 15:56:37 -0700224 rx_req = OMAP_DMA_MMC2_RX;
225 tx_req = OMAP_DMA_MMC2_TX;
Tony Lindgrend8874662008-12-10 17:37:16 -0800226 break;
227 default:
228 continue;
229 }
230 size = OMAP1_MMC_SIZE;
231
Tony Lindgren6c432f72012-04-23 15:56:37 -0700232 omap_mmc_add("mmci-omap", i, base, size, irq,
233 rx_req, tx_req, mmc_data[i]);
Tony Lindgrend8874662008-12-10 17:37:16 -0800234 };
235}
236
237#endif
238
239/*-------------------------------------------------------------------------*/
240
Cory Maccarronec5c4dce2010-01-08 10:29:05 -0800241/* OMAP7xx SPI support */
242#if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
243
244struct platform_device omap_spi1 = {
245 .name = "omap1_spi100k",
246 .id = 1,
247};
248
249struct platform_device omap_spi2 = {
250 .name = "omap1_spi100k",
251 .id = 2,
252};
253
254static void omap_init_spi100k(void)
255{
256 omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
257 if (omap_spi1.dev.platform_data)
258 platform_device_register(&omap_spi1);
259
260 omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
261 if (omap_spi2.dev.platform_data)
262 platform_device_register(&omap_spi2);
263}
264
265#else
266static inline void omap_init_spi100k(void)
267{
268}
269#endif
270
Janusz Krzysztofik1a96edd2010-10-01 16:37:00 -0700271
272#define OMAP1_CAMERA_BASE 0xfffb6800
273#define OMAP1_CAMERA_IOSIZE 0x1c
274
275static struct resource omap1_camera_resources[] = {
276 [0] = {
277 .start = OMAP1_CAMERA_BASE,
278 .end = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
279 .flags = IORESOURCE_MEM,
280 },
281 [1] = {
282 .start = INT_CAMERA,
283 .flags = IORESOURCE_IRQ,
284 },
285};
286
287static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
288
289static struct platform_device omap1_camera_device = {
290 .name = "omap1-camera",
291 .id = 0, /* This is used to put cameras on this interface */
292 .dev = {
293 .dma_mask = &omap1_camera_dma_mask,
294 .coherent_dma_mask = DMA_BIT_MASK(32),
295 },
296 .num_resources = ARRAY_SIZE(omap1_camera_resources),
297 .resource = omap1_camera_resources,
298};
299
300void __init omap1_camera_init(void *info)
301{
302 struct platform_device *dev = &omap1_camera_device;
303 int ret;
304
305 dev->dev.platform_data = info;
306
307 ret = platform_device_register(dev);
308 if (ret)
309 dev_err(&dev->dev, "unable to register device: %d\n", ret);
310}
311
312
Cory Maccarronec5c4dce2010-01-08 10:29:05 -0800313/*-------------------------------------------------------------------------*/
314
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100315static inline void omap_init_sti(void) {}
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100316
Tony Lindgren49b1a612012-05-09 09:59:25 -0700317/* Numbering for the SPI-capable controllers when used for SPI:
318 * spi = 1
319 * uwire = 2
320 * mmc1..2 = 3..4
321 * mcbsp1..3 = 5..7
322 */
323
324#if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
325
326#define OMAP_UWIRE_BASE 0xfffb3000
327
328static struct resource uwire_resources[] = {
329 {
330 .start = OMAP_UWIRE_BASE,
331 .end = OMAP_UWIRE_BASE + 0x20,
332 .flags = IORESOURCE_MEM,
333 },
334};
335
336static struct platform_device omap_uwire_device = {
337 .name = "omap_uwire",
338 .id = -1,
339 .num_resources = ARRAY_SIZE(uwire_resources),
340 .resource = uwire_resources,
341};
342
343static void omap_init_uwire(void)
344{
345 /* FIXME define and use a boot tag; not all boards will be hooking
346 * up devices to the microwire controller, and multi-board configs
347 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
348 */
349
350 /* board-specific code must configure chipselects (only a few
351 * are normally used) and SCLK/SDI/SDO (each has two choices).
352 */
353 (void) platform_device_register(&omap_uwire_device);
354}
355#else
356static inline void omap_init_uwire(void) {}
357#endif
358
359
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100360/*
361 * This gets called after board-specific INIT_MACHINE, and initializes most
362 * on-chip peripherals accessible on this board (except for few like USB):
363 *
364 * (a) Does any "standard config" pin muxing needed. Board-specific
365 * code will have muxed GPIO pins and done "nonstandard" setup;
366 * that code could live in the boot loader.
367 * (b) Populating board-specific platform_data with the data drivers
368 * rely on to handle wiring variations.
369 * (c) Creating platform devices as meaningful on this board and
370 * with this kernel configuration.
371 *
372 * Claiming GPIOs, and setting their direction and initial values, is the
373 * responsibility of the device drivers. So is responding to probe().
374 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300375 * Board-specific knowledge like creating devices or pin setup is to be
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100376 * kept out of drivers as much as possible. In particular, pin setup
377 * may be handled by the boot loader, and drivers should expect it will
378 * normally have been done by the time they're probed.
379 */
Tony Lindgren3179a012005-11-10 14:26:48 +0000380static int __init omap1_init_devices(void)
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100381{
Tony Lindgren7f9187c2010-12-10 09:46:24 -0800382 if (!cpu_class_is_omap1())
383 return -ENODEV;
384
Tony Lindgrena66cb342011-10-04 13:52:57 -0700385 omap_sram_init();
Tony Lindgrene9b70862011-11-11 10:15:11 -0800386 omap1_clk_late_init();
Tony Lindgrena66cb342011-10-04 13:52:57 -0700387
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100388 /* please keep these calls, and their implementations above,
389 * in alphabetical order so they're easier to sort through.
390 */
Tony Lindgrenc40fae952006-12-07 13:58:10 -0800391
Tony Lindgrenfcc76a82012-05-09 09:59:25 -0700392 omap_init_audio();
Tony Lindgrenc40fae952006-12-07 13:58:10 -0800393 omap_init_mbox();
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100394 omap_init_rtc();
Cory Maccarronec5c4dce2010-01-08 10:29:05 -0800395 omap_init_spi100k();
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100396 omap_init_sti();
Tony Lindgren49b1a612012-05-09 09:59:25 -0700397 omap_init_uwire();
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100398
399 return 0;
400}
Tony Lindgren3179a012005-11-10 14:26:48 +0000401arch_initcall(omap1_init_devices);
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100402
Varadarajan, Charulathaf2ce6232010-09-23 20:02:42 +0530403#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
404
405static struct resource wdt_resources[] = {
406 {
407 .start = 0xfffeb000,
408 .end = 0xfffeb07F,
409 .flags = IORESOURCE_MEM,
410 },
411};
412
413static struct platform_device omap_wdt_device = {
414 .name = "omap_wdt",
415 .id = -1,
416 .num_resources = ARRAY_SIZE(wdt_resources),
417 .resource = wdt_resources,
418};
419
420static int __init omap_init_wdt(void)
421{
422 if (!cpu_is_omap16xx())
Felipe Balbidfcccd32010-11-08 06:48:00 +0000423 return -ENODEV;
Varadarajan, Charulathaf2ce6232010-09-23 20:02:42 +0530424
Felipe Balbidfcccd32010-11-08 06:48:00 +0000425 return platform_device_register(&omap_wdt_device);
Varadarajan, Charulathaf2ce6232010-09-23 20:02:42 +0530426}
427subsys_initcall(omap_init_wdt);
428#endif