Merge branch 'locks' of git://linux-nfs.org/~bfields/linux
[linux-2.6.git] / arch / arm / mach-omap1 / board-osk.c
1 /*
2  * linux/arch/arm/mach-omap1/board-osk.c
3  *
4  * Board specific init for OMAP5912 OSK
5  *
6  * Written by Dirk Behme <dirk.behme@de.bosch.com>
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License as published by the
10  * Free Software Foundation; either version 2 of the License, or (at your
11  * option) any later version.
12  *
13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  *
24  * You should have received a copy of the  GNU General Public License along
25  * with this program; if not, write  to the Free Software Foundation, Inc.,
26  * 675 Mass Ave, Cambridge, MA 02139, USA.
27  */
28
29 #include <linux/kernel.h>
30 #include <linux/init.h>
31 #include <linux/platform_device.h>
32 #include <linux/irq.h>
33 #include <linux/interrupt.h>
34 #include <linux/i2c.h>
35
36 #include <linux/mtd/mtd.h>
37 #include <linux/mtd/partitions.h>
38
39 #include <asm/hardware.h>
40 #include <asm/gpio.h>
41
42 #include <asm/mach-types.h>
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/flash.h>
46
47 #include <asm/arch/usb.h>
48 #include <asm/arch/tps65010.h>
49 #include <asm/arch/mux.h>
50 #include <asm/arch/tc.h>
51 #include <asm/arch/common.h>
52 #include <asm/arch/mcbsp.h>
53 #include <asm/arch/omap-alsa.h>
54
55 static struct mtd_partition osk_partitions[] = {
56         /* bootloader (U-Boot, etc) in first sector */
57         {
58               .name             = "bootloader",
59               .offset           = 0,
60               .size             = SZ_128K,
61               .mask_flags       = MTD_WRITEABLE, /* force read-only */
62         },
63         /* bootloader params in the next sector */
64         {
65               .name             = "params",
66               .offset           = MTDPART_OFS_APPEND,
67               .size             = SZ_128K,
68               .mask_flags       = 0,
69         }, {
70               .name             = "kernel",
71               .offset           = MTDPART_OFS_APPEND,
72               .size             = SZ_2M,
73               .mask_flags       = 0
74         }, {
75               .name             = "filesystem",
76               .offset           = MTDPART_OFS_APPEND,
77               .size             = MTDPART_SIZ_FULL,
78               .mask_flags       = 0
79         }
80 };
81
82 static struct flash_platform_data osk_flash_data = {
83         .map_name       = "cfi_probe",
84         .width          = 2,
85         .parts          = osk_partitions,
86         .nr_parts       = ARRAY_SIZE(osk_partitions),
87 };
88
89 static struct resource osk_flash_resource = {
90         /* this is on CS3, wherever it's mapped */
91         .flags          = IORESOURCE_MEM,
92 };
93
94 static struct platform_device osk5912_flash_device = {
95         .name           = "omapflash",
96         .id             = 0,
97         .dev            = {
98                 .platform_data  = &osk_flash_data,
99         },
100         .num_resources  = 1,
101         .resource       = &osk_flash_resource,
102 };
103
104 static struct resource osk5912_smc91x_resources[] = {
105         [0] = {
106                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
107                 .end    = OMAP_OSK_ETHR_START + 0xf,
108                 .flags  = IORESOURCE_MEM,
109         },
110         [1] = {
111                 .start  = OMAP_GPIO_IRQ(0),
112                 .end    = OMAP_GPIO_IRQ(0),
113                 .flags  = IORESOURCE_IRQ,
114         },
115 };
116
117 static struct platform_device osk5912_smc91x_device = {
118         .name           = "smc91x",
119         .id             = -1,
120         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
121         .resource       = osk5912_smc91x_resources,
122 };
123
124 static struct resource osk5912_cf_resources[] = {
125         [0] = {
126                 .start  = OMAP_GPIO_IRQ(62),
127                 .end    = OMAP_GPIO_IRQ(62),
128                 .flags  = IORESOURCE_IRQ,
129         },
130 };
131
132 static struct platform_device osk5912_cf_device = {
133         .name           = "omap_cf",
134         .id             = -1,
135         .dev = {
136                 .platform_data  = (void *) 2 /* CS2 */,
137         },
138         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
139         .resource       = osk5912_cf_resources,
140 };
141
142 #define DEFAULT_BITPERSAMPLE 16
143
144 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
145         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
146         .spcr1 = RINTM(3) | RRST,
147         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
148             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
149         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
150         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
151             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
152         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
153         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
154         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
155         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
156         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
157 };
158
159 static struct omap_alsa_codec_config alsa_config = {
160         .name                   = "OSK AIC23",
161         .mcbsp_regs_alsa        = &mcbsp_regs,
162         .codec_configure_dev    = NULL, // aic23_configure,
163         .codec_set_samplerate   = NULL, // aic23_set_samplerate,
164         .codec_clock_setup      = NULL, // aic23_clock_setup,
165         .codec_clock_on         = NULL, // aic23_clock_on,
166         .codec_clock_off        = NULL, // aic23_clock_off,
167         .get_default_samplerate = NULL, // aic23_get_default_samplerate,
168 };
169
170 static struct platform_device osk5912_mcbsp1_device = {
171         .name   = "omap_alsa_mcbsp",
172         .id     = 1,
173         .dev = {
174                 .platform_data  = &alsa_config,
175         },
176 };
177
178 static struct platform_device *osk5912_devices[] __initdata = {
179         &osk5912_flash_device,
180         &osk5912_smc91x_device,
181         &osk5912_cf_device,
182         &osk5912_mcbsp1_device,
183 };
184
185 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
186         {
187                 I2C_BOARD_INFO("tps65010", 0x48),
188                 .type           = "tps65010",
189                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
190         },
191         /* TODO when driver support is ready:
192          *  - aic23 audio chip at 0x1a
193          *  - on Mistral, 24c04 eeprom at 0x50
194          *  - optionally on Mistral, ov9640 camera sensor at 0x30
195          */
196 };
197
198 static void __init osk_init_smc91x(void)
199 {
200         if ((omap_request_gpio(0)) < 0) {
201                 printk("Error requesting gpio 0 for smc91x irq\n");
202                 return;
203         }
204
205         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
206         EMIFS_CCS(1) |= 0x3;
207 }
208
209 static void __init osk_init_cf(void)
210 {
211         omap_cfg_reg(M7_1610_GPIO62);
212         if ((omap_request_gpio(62)) < 0) {
213                 printk("Error requesting gpio 62 for CF irq\n");
214                 return;
215         }
216         /* the CF I/O IRQ is really active-low */
217         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
218 }
219
220 static void __init osk_init_irq(void)
221 {
222         omap1_init_common_hw();
223         omap_init_irq();
224         omap_gpio_init();
225         osk_init_smc91x();
226         osk_init_cf();
227 }
228
229 static struct omap_usb_config osk_usb_config __initdata = {
230         /* has usb host connector (A) ... for development it can also
231          * be used, with a NONSTANDARD gender-bending cable/dongle, as
232          * a peripheral.
233          */
234 #ifdef  CONFIG_USB_GADGET_OMAP
235         .register_dev   = 1,
236         .hmc_mode       = 0,
237 #else
238         .register_host  = 1,
239         .hmc_mode       = 16,
240         .rwc            = 1,
241 #endif
242         .pins[0]        = 2,
243 };
244
245 static struct omap_uart_config osk_uart_config __initdata = {
246         .enabled_uarts = (1 << 0),
247 };
248
249 #ifdef  CONFIG_OMAP_OSK_MISTRAL
250 static struct omap_lcd_config osk_lcd_config __initdata = {
251         .ctrl_name      = "internal",
252 };
253 #endif
254
255 static struct omap_board_config_kernel osk_config[] = {
256         { OMAP_TAG_USB,           &osk_usb_config },
257         { OMAP_TAG_UART,                &osk_uart_config },
258 #ifdef  CONFIG_OMAP_OSK_MISTRAL
259         { OMAP_TAG_LCD,                 &osk_lcd_config },
260 #endif
261 };
262
263 #ifdef  CONFIG_OMAP_OSK_MISTRAL
264
265 #include <linux/input.h>
266 #include <linux/spi/spi.h>
267 #include <linux/spi/ads7846.h>
268
269 #include <asm/arch/keypad.h>
270
271 static const int osk_keymap[] = {
272         /* KEY(col, row, code) */
273         KEY(0, 0, KEY_F1),              /* SW4 */
274         KEY(0, 3, KEY_UP),              /* (sw2/up) */
275         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
276         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
277         KEY(2, 0, KEY_SPACE),           /* SW3 */
278         KEY(2, 1, KEY_ESC),             /* SW6 */
279         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
280         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
281         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
282         0
283 };
284
285 static struct omap_kp_platform_data osk_kp_data = {
286         .rows           = 8,
287         .cols           = 8,
288         .keymap         = (int *) osk_keymap,
289         .keymapsize     = ARRAY_SIZE(osk_keymap),
290         .delay          = 9,
291 };
292
293 static struct resource osk5912_kp_resources[] = {
294         [0] = {
295                 .start  = INT_KEYBOARD,
296                 .end    = INT_KEYBOARD,
297                 .flags  = IORESOURCE_IRQ,
298         },
299 };
300
301 static struct platform_device osk5912_kp_device = {
302         .name           = "omap-keypad",
303         .id             = -1,
304         .dev            = {
305                 .platform_data = &osk_kp_data,
306         },
307         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
308         .resource       = osk5912_kp_resources,
309 };
310
311 static struct platform_device osk5912_lcd_device = {
312         .name           = "lcd_osk",
313         .id             = -1,
314 };
315
316 static struct platform_device *mistral_devices[] __initdata = {
317         &osk5912_kp_device,
318         &osk5912_lcd_device,
319 };
320
321 static int mistral_get_pendown_state(void)
322 {
323         return !omap_get_gpio_datain(4);
324 }
325
326 static const struct ads7846_platform_data mistral_ts_info = {
327         .model                  = 7846,
328         .vref_delay_usecs       = 100,  /* internal, no capacitor */
329         .x_plate_ohms           = 419,
330         .y_plate_ohms           = 486,
331         .get_pendown_state      = mistral_get_pendown_state,
332 };
333
334 static struct spi_board_info __initdata mistral_boardinfo[] = { {
335         /* MicroWire (bus 2) CS0 has an ads7846e */
336         .modalias               = "ads7846",
337         .platform_data          = &mistral_ts_info,
338         .irq                    = OMAP_GPIO_IRQ(4),
339         .max_speed_hz           = 120000 /* max sample rate at 3V */
340                                         * 26 /* command + data + overhead */,
341         .bus_num                = 2,
342         .chip_select            = 0,
343 } };
344
345 #ifdef  CONFIG_PM
346 static irqreturn_t
347 osk_mistral_wake_interrupt(int irq, void *ignored)
348 {
349         return IRQ_HANDLED;
350 }
351 #endif
352
353 static void __init osk_mistral_init(void)
354 {
355         /* NOTE:  we could actually tell if there's a Mistral board
356          * attached, e.g. by trying to read something from the ads7846.
357          * But this arch_init() code is too early for that, since we
358          * can't talk to the ads or even the i2c eeprom.
359          */
360
361         // omap_cfg_reg(P19_1610_GPIO6);        // BUSY
362         omap_cfg_reg(P20_1610_GPIO4);   // PENIRQ
363         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
364         spi_register_board_info(mistral_boardinfo,
365                         ARRAY_SIZE(mistral_boardinfo));
366
367         /* the sideways button (SW1) is for use as a "wakeup" button */
368         omap_cfg_reg(N15_1610_MPUIO2);
369         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
370                 int ret = 0;
371                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
372                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
373 #ifdef  CONFIG_PM
374                 /* share the IRQ in case someone wants to use the
375                  * button for more than wakeup from system sleep.
376                  */
377                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
378                                 &osk_mistral_wake_interrupt,
379                                 IRQF_SHARED, "mistral_wakeup",
380                                 &osk_mistral_wake_interrupt);
381                 if (ret != 0) {
382                         omap_free_gpio(OMAP_MPUIO(2));
383                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
384                                 ret);
385                 } else
386                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
387 #endif
388         } else
389                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
390
391         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
392 }
393 #else
394 static void __init osk_mistral_init(void) { }
395 #endif
396
397 #define EMIFS_CS3_VAL   (0x88013141)
398
399 static void __init osk_init(void)
400 {
401         /* Workaround for wrong CS3 (NOR flash) timing
402          * There are some U-Boot versions out there which configure
403          * wrong CS3 memory timings. This mainly leads to CRC
404          * or similar errors if you use NOR flash (e.g. with JFFS2)
405          */
406         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
407                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
408
409         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
410         osk_flash_resource.end += SZ_32M - 1;
411         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
412         omap_board_config = osk_config;
413         omap_board_config_size = ARRAY_SIZE(osk_config);
414         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
415
416         /* irq for tps65010 chip */
417         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
418         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
419                 gpio_direction_input(OMAP_MPUIO(1));
420
421         i2c_register_board_info(1, osk_i2c_board_info,
422                         ARRAY_SIZE(osk_i2c_board_info));
423
424         omap_serial_init();
425         osk_mistral_init();
426 }
427
428 static void __init osk_map_io(void)
429 {
430         omap1_map_common_io();
431 }
432
433 #ifdef CONFIG_TPS65010
434 static int __init osk_tps_init(void)
435 {
436         if (!machine_is_omap_osk())
437                 return 0;
438
439         /* Let LED1 (D9) blink */
440         tps65010_set_led(LED1, BLINK);
441
442         /* Disable LED 2 (D2) */
443         tps65010_set_led(LED2, OFF);
444
445         /* Set GPIO 1 HIGH to disable VBUS power supply;
446          * OHCI driver powers it up/down as needed.
447          */
448         tps65010_set_gpio_out_value(GPIO1, HIGH);
449
450         /* Set GPIO 2 low to turn on LED D3 */
451         tps65010_set_gpio_out_value(GPIO2, HIGH);
452
453         /* Set GPIO 3 low to take ethernet out of reset */
454         tps65010_set_gpio_out_value(GPIO3, LOW);
455
456         /* gpio4 for VDD_DSP */
457         /* FIXME send power to DSP iff it's configured */
458
459         /* Enable LOW_PWR */
460         tps65010_set_low_pwr(ON);
461
462         /* Switch VLDO2 to 3.0V for AIC23 */
463         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
464                         | TPS_LDO1_ENABLE);
465
466         return 0;
467 }
468 fs_initcall(osk_tps_init);
469 #endif
470
471 MACHINE_START(OMAP_OSK, "TI-OSK")
472         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
473         .phys_io        = 0xfff00000,
474         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
475         .boot_params    = 0x10000100,
476         .map_io         = osk_map_io,
477         .init_irq       = osk_init_irq,
478         .init_machine   = osk_init,
479         .timer          = &omap_timer,
480 MACHINE_END