Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
[linux-2.6] / 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
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/partitions.h>
37
38 #include <asm/hardware.h>
39 #include <asm/mach-types.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/flash.h>
43
44 #include <asm/arch/gpio.h>
45 #include <asm/arch/usb.h>
46 #include <asm/arch/mux.h>
47 #include <asm/arch/tc.h>
48 #include <asm/arch/common.h>
49 #include <asm/arch/mcbsp.h>
50 #include <asm/arch/omap-alsa.h>
51
52 static struct mtd_partition osk_partitions[] = {
53         /* bootloader (U-Boot, etc) in first sector */
54         {
55               .name             = "bootloader",
56               .offset           = 0,
57               .size             = SZ_128K,
58               .mask_flags       = MTD_WRITEABLE, /* force read-only */
59         },
60         /* bootloader params in the next sector */
61         {
62               .name             = "params",
63               .offset           = MTDPART_OFS_APPEND,
64               .size             = SZ_128K,
65               .mask_flags       = 0,
66         }, {
67               .name             = "kernel",
68               .offset           = MTDPART_OFS_APPEND,
69               .size             = SZ_2M,
70               .mask_flags       = 0
71         }, {
72               .name             = "filesystem",
73               .offset           = MTDPART_OFS_APPEND,
74               .size             = MTDPART_SIZ_FULL,
75               .mask_flags       = 0
76         }
77 };
78
79 static struct flash_platform_data osk_flash_data = {
80         .map_name       = "cfi_probe",
81         .width          = 2,
82         .parts          = osk_partitions,
83         .nr_parts       = ARRAY_SIZE(osk_partitions),
84 };
85
86 static struct resource osk_flash_resource = {
87         /* this is on CS3, wherever it's mapped */
88         .flags          = IORESOURCE_MEM,
89 };
90
91 static struct platform_device osk5912_flash_device = {
92         .name           = "omapflash",
93         .id             = 0,
94         .dev            = {
95                 .platform_data  = &osk_flash_data,
96         },
97         .num_resources  = 1,
98         .resource       = &osk_flash_resource,
99 };
100
101 static struct resource osk5912_smc91x_resources[] = {
102         [0] = {
103                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
104                 .end    = OMAP_OSK_ETHR_START + 0xf,
105                 .flags  = IORESOURCE_MEM,
106         },
107         [1] = {
108                 .start  = OMAP_GPIO_IRQ(0),
109                 .end    = OMAP_GPIO_IRQ(0),
110                 .flags  = IORESOURCE_IRQ,
111         },
112 };
113
114 static struct platform_device osk5912_smc91x_device = {
115         .name           = "smc91x",
116         .id             = -1,
117         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
118         .resource       = osk5912_smc91x_resources,
119 };
120
121 static struct resource osk5912_cf_resources[] = {
122         [0] = {
123                 .start  = OMAP_GPIO_IRQ(62),
124                 .end    = OMAP_GPIO_IRQ(62),
125                 .flags  = IORESOURCE_IRQ,
126         },
127 };
128
129 static struct platform_device osk5912_cf_device = {
130         .name           = "omap_cf",
131         .id             = -1,
132         .dev = {
133                 .platform_data  = (void *) 2 /* CS2 */,
134         },
135         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
136         .resource       = osk5912_cf_resources,
137 };
138
139 #define DEFAULT_BITPERSAMPLE 16
140
141 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
142         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
143         .spcr1 = RINTM(3) | RRST,
144         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
145             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
146         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
147         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
148             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
149         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
150         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
151         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
152         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
153         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
154 };
155
156 static struct omap_alsa_codec_config alsa_config = {
157         .name                   = "OSK AIC23",
158         .mcbsp_regs_alsa        = &mcbsp_regs,
159         .codec_configure_dev    = NULL, // aic23_configure,
160         .codec_set_samplerate   = NULL, // aic23_set_samplerate,
161         .codec_clock_setup      = NULL, // aic23_clock_setup,
162         .codec_clock_on         = NULL, // aic23_clock_on,
163         .codec_clock_off        = NULL, // aic23_clock_off,
164         .get_default_samplerate = NULL, // aic23_get_default_samplerate,
165 };
166
167 static struct platform_device osk5912_mcbsp1_device = {
168         .name   = "omap_alsa_mcbsp",
169         .id     = 1,
170         .dev = {
171                 .platform_data  = &alsa_config,
172         },
173 };
174
175 static struct platform_device *osk5912_devices[] __initdata = {
176         &osk5912_flash_device,
177         &osk5912_smc91x_device,
178         &osk5912_cf_device,
179         &osk5912_mcbsp1_device,
180 };
181
182 static void __init osk_init_smc91x(void)
183 {
184         if ((omap_request_gpio(0)) < 0) {
185                 printk("Error requesting gpio 0 for smc91x irq\n");
186                 return;
187         }
188
189         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
190         EMIFS_CCS(1) |= 0x3;
191 }
192
193 static void __init osk_init_cf(void)
194 {
195         omap_cfg_reg(M7_1610_GPIO62);
196         if ((omap_request_gpio(62)) < 0) {
197                 printk("Error requesting gpio 62 for CF irq\n");
198                 return;
199         }
200         /* the CF I/O IRQ is really active-low */
201         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
202 }
203
204 static void __init osk_init_irq(void)
205 {
206         omap1_init_common_hw();
207         omap_init_irq();
208         omap_gpio_init();
209         osk_init_smc91x();
210         osk_init_cf();
211 }
212
213 static struct omap_usb_config osk_usb_config __initdata = {
214         /* has usb host connector (A) ... for development it can also
215          * be used, with a NONSTANDARD gender-bending cable/dongle, as
216          * a peripheral.
217          */
218 #ifdef  CONFIG_USB_GADGET_OMAP
219         .register_dev   = 1,
220         .hmc_mode       = 0,
221 #else
222         .register_host  = 1,
223         .hmc_mode       = 16,
224         .rwc            = 1,
225 #endif
226         .pins[0]        = 2,
227 };
228
229 static struct omap_uart_config osk_uart_config __initdata = {
230         .enabled_uarts = (1 << 0),
231 };
232
233 #ifdef  CONFIG_OMAP_OSK_MISTRAL
234 static struct omap_lcd_config osk_lcd_config __initdata = {
235         .ctrl_name      = "internal",
236 };
237 #endif
238
239 static struct omap_board_config_kernel osk_config[] = {
240         { OMAP_TAG_USB,           &osk_usb_config },
241         { OMAP_TAG_UART,                &osk_uart_config },
242 #ifdef  CONFIG_OMAP_OSK_MISTRAL
243         { OMAP_TAG_LCD,                 &osk_lcd_config },
244 #endif
245 };
246
247 #ifdef  CONFIG_OMAP_OSK_MISTRAL
248
249 #include <linux/input.h>
250 #include <linux/spi/spi.h>
251 #include <linux/spi/ads7846.h>
252
253 #include <asm/arch/keypad.h>
254
255 static const int osk_keymap[] = {
256         /* KEY(col, row, code) */
257         KEY(0, 0, KEY_F1),              /* SW4 */
258         KEY(0, 3, KEY_UP),              /* (sw2/up) */
259         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
260         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
261         KEY(2, 0, KEY_SPACE),           /* SW3 */
262         KEY(2, 1, KEY_ESC),             /* SW6 */
263         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
264         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
265         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
266         0
267 };
268
269 static struct omap_kp_platform_data osk_kp_data = {
270         .rows           = 8,
271         .cols           = 8,
272         .keymap         = (int *) osk_keymap,
273         .keymapsize     = ARRAY_SIZE(osk_keymap),
274         .delay          = 9,
275 };
276
277 static struct resource osk5912_kp_resources[] = {
278         [0] = {
279                 .start  = INT_KEYBOARD,
280                 .end    = INT_KEYBOARD,
281                 .flags  = IORESOURCE_IRQ,
282         },
283 };
284
285 static struct platform_device osk5912_kp_device = {
286         .name           = "omap-keypad",
287         .id             = -1,
288         .dev            = {
289                 .platform_data = &osk_kp_data,
290         },
291         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
292         .resource       = osk5912_kp_resources,
293 };
294
295 static struct platform_device osk5912_lcd_device = {
296         .name           = "lcd_osk",
297         .id             = -1,
298 };
299
300 static struct platform_device *mistral_devices[] __initdata = {
301         &osk5912_kp_device,
302         &osk5912_lcd_device,
303 };
304
305 static int mistral_get_pendown_state(void)
306 {
307         return !omap_get_gpio_datain(4);
308 }
309
310 static const struct ads7846_platform_data mistral_ts_info = {
311         .model                  = 7846,
312         .vref_delay_usecs       = 100,  /* internal, no capacitor */
313         .x_plate_ohms           = 419,
314         .y_plate_ohms           = 486,
315         .get_pendown_state      = mistral_get_pendown_state,
316 };
317
318 static struct spi_board_info __initdata mistral_boardinfo[] = { {
319         /* MicroWire (bus 2) CS0 has an ads7846e */
320         .modalias               = "ads7846",
321         .platform_data          = &mistral_ts_info,
322         .irq                    = OMAP_GPIO_IRQ(4),
323         .max_speed_hz           = 120000 /* max sample rate at 3V */
324                                         * 26 /* command + data + overhead */,
325         .bus_num                = 2,
326         .chip_select            = 0,
327 } };
328
329 #ifdef  CONFIG_PM
330 static irqreturn_t
331 osk_mistral_wake_interrupt(int irq, void *ignored)
332 {
333         return IRQ_HANDLED;
334 }
335 #endif
336
337 static void __init osk_mistral_init(void)
338 {
339         /* NOTE:  we could actually tell if there's a Mistral board
340          * attached, e.g. by trying to read something from the ads7846.
341          * But this arch_init() code is too early for that, since we
342          * can't talk to the ads or even the i2c eeprom.
343          */
344
345         // omap_cfg_reg(P19_1610_GPIO6);        // BUSY
346         omap_cfg_reg(P20_1610_GPIO4);   // PENIRQ
347         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
348         spi_register_board_info(mistral_boardinfo,
349                         ARRAY_SIZE(mistral_boardinfo));
350
351         /* the sideways button (SW1) is for use as a "wakeup" button */
352         omap_cfg_reg(N15_1610_MPUIO2);
353         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
354                 int ret = 0;
355                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
356                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
357 #ifdef  CONFIG_PM
358                 /* share the IRQ in case someone wants to use the
359                  * button for more than wakeup from system sleep.
360                  */
361                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
362                                 &osk_mistral_wake_interrupt,
363                                 IRQF_SHARED, "mistral_wakeup",
364                                 &osk_mistral_wake_interrupt);
365                 if (ret != 0) {
366                         omap_free_gpio(OMAP_MPUIO(2));
367                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
368                                 ret);
369                 } else
370                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
371 #endif
372         } else
373                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
374
375         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
376 }
377 #else
378 static void __init osk_mistral_init(void) { }
379 #endif
380
381 #define EMIFS_CS3_VAL   (0x88013141)
382
383 static void __init osk_init(void)
384 {
385         /* Workaround for wrong CS3 (NOR flash) timing
386          * There are some U-Boot versions out there which configure
387          * wrong CS3 memory timings. This mainly leads to CRC
388          * or similiar errors if you use NOR flash (e.g. with JFFS2)
389          */
390         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
391                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
392
393         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
394         osk_flash_resource.end += SZ_32M - 1;
395         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
396         omap_board_config = osk_config;
397         omap_board_config_size = ARRAY_SIZE(osk_config);
398         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
399
400         omap_serial_init();
401         osk_mistral_init();
402 }
403
404 static void __init osk_map_io(void)
405 {
406         omap1_map_common_io();
407 }
408
409 MACHINE_START(OMAP_OSK, "TI-OSK")
410         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
411         .phys_io        = 0xfff00000,
412         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
413         .boot_params    = 0x10000100,
414         .map_io         = osk_map_io,
415         .init_irq       = osk_init_irq,
416         .init_machine   = osk_init,
417         .timer          = &omap_timer,
418 MACHINE_END