[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
[linux-2.6.git] / arch / arm / mach-pxa / lubbock.c
1 /*
2  *  linux/arch/arm/mach-pxa/lubbock.c
3  *
4  *  Support for the Intel DBPXA250 Development Platform.
5  *
6  *  Author:     Nicolas Pitre
7  *  Created:    Jun 15, 2001
8  *  Copyright:  MontaVista Software Inc.
9  *
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License version 2 as
12  *  published by the Free Software Foundation.
13  */
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/sysdev.h>
19 #include <linux/major.h>
20 #include <linux/fb.h>
21 #include <linux/interrupt.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/partitions.h>
24 #include <linux/smc91x.h>
25
26 #include <linux/spi/spi.h>
27 #include <linux/spi/ads7846.h>
28 #include <mach/pxa2xx_spi.h>
29
30 #include <asm/setup.h>
31 #include <asm/memory.h>
32 #include <asm/mach-types.h>
33 #include <mach/hardware.h>
34 #include <asm/irq.h>
35 #include <asm/sizes.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/irq.h>
40 #include <asm/mach/flash.h>
41
42 #include <asm/hardware/sa1111.h>
43
44 #include <mach/pxa-regs.h>
45 #include <mach/pxa2xx-regs.h>
46 #include <mach/mfp-pxa25x.h>
47 #include <mach/audio.h>
48 #include <mach/lubbock.h>
49 #include <mach/udc.h>
50 #include <mach/irda.h>
51 #include <mach/pxafb.h>
52 #include <mach/mmc.h>
53
54 #include "generic.h"
55 #include "devices.h"
56
57 static unsigned long lubbock_pin_config[] __initdata = {
58         GPIO15_nCS_1,   /* CS1 - Flash */
59         GPIO79_nCS_3,   /* CS3 - SMC ethernet */
60
61         /* SSP data pins */
62         GPIO23_SSP1_SCLK,
63         GPIO25_SSP1_TXD,
64         GPIO26_SSP1_RXD,
65
66         /* BTUART */
67         GPIO42_BTUART_RXD,
68         GPIO43_BTUART_TXD,
69         GPIO44_BTUART_CTS,
70         GPIO45_BTUART_RTS,
71
72         /* PC Card */
73         GPIO48_nPOE,
74         GPIO49_nPWE,
75         GPIO50_nPIOR,
76         GPIO51_nPIOW,
77         GPIO52_nPCE_1,
78         GPIO53_nPCE_2,
79         GPIO54_nPSKTSEL,
80         GPIO55_nPREG,
81         GPIO56_nPWAIT,
82         GPIO57_nIOIS16,
83
84         /* MMC */
85         GPIO6_MMC_CLK,
86         GPIO8_MMC_CS0,
87
88         /* wakeup */
89         GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
90 };
91
92 #define LUB_MISC_WR             __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
93
94 void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
95 {
96         unsigned long flags;
97
98         local_irq_save(flags);
99         LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
100         local_irq_restore(flags);
101 }
102 EXPORT_SYMBOL(lubbock_set_misc_wr);
103
104 static unsigned long lubbock_irq_enabled;
105
106 static void lubbock_mask_irq(unsigned int irq)
107 {
108         int lubbock_irq = (irq - LUBBOCK_IRQ(0));
109         LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
110 }
111
112 static void lubbock_unmask_irq(unsigned int irq)
113 {
114         int lubbock_irq = (irq - LUBBOCK_IRQ(0));
115         /* the irq can be acknowledged only if deasserted, so it's done here */
116         LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
117         LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
118 }
119
120 static struct irq_chip lubbock_irq_chip = {
121         .name           = "FPGA",
122         .ack            = lubbock_mask_irq,
123         .mask           = lubbock_mask_irq,
124         .unmask         = lubbock_unmask_irq,
125 };
126
127 static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
128 {
129         unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
130         do {
131                 GEDR(0) = GPIO_bit(0);  /* clear our parent irq */
132                 if (likely(pending)) {
133                         irq = LUBBOCK_IRQ(0) + __ffs(pending);
134                         desc = irq_desc + irq;
135                         desc_handle_irq(irq, desc);
136                 }
137                 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
138         } while (pending);
139 }
140
141 static void __init lubbock_init_irq(void)
142 {
143         int irq;
144
145         pxa25x_init_irq();
146
147         /* setup extra lubbock irqs */
148         for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
149                 set_irq_chip(irq, &lubbock_irq_chip);
150                 set_irq_handler(irq, handle_level_irq);
151                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
152         }
153
154         set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
155         set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
156 }
157
158 #ifdef CONFIG_PM
159
160 static int lubbock_irq_resume(struct sys_device *dev)
161 {
162         LUB_IRQ_MASK_EN = lubbock_irq_enabled;
163         return 0;
164 }
165
166 static struct sysdev_class lubbock_irq_sysclass = {
167         .name = "cpld_irq",
168         .resume = lubbock_irq_resume,
169 };
170
171 static struct sys_device lubbock_irq_device = {
172         .cls = &lubbock_irq_sysclass,
173 };
174
175 static int __init lubbock_irq_device_init(void)
176 {
177         int ret = -ENODEV;
178
179         if (machine_is_lubbock()) {
180                 ret = sysdev_class_register(&lubbock_irq_sysclass);
181                 if (ret == 0)
182                         ret = sysdev_register(&lubbock_irq_device);
183         }
184         return ret;
185 }
186
187 device_initcall(lubbock_irq_device_init);
188
189 #endif
190
191 static int lubbock_udc_is_connected(void)
192 {
193         return (LUB_MISC_RD & (1 << 9)) == 0;
194 }
195
196 static struct pxa2xx_udc_mach_info udc_info __initdata = {
197         .udc_is_connected       = lubbock_udc_is_connected,
198         // no D+ pullup; lubbock can't connect/disconnect in software
199 };
200
201 static struct resource sa1111_resources[] = {
202         [0] = {
203                 .start  = 0x10000000,
204                 .end    = 0x10001fff,
205                 .flags  = IORESOURCE_MEM,
206         },
207         [1] = {
208                 .start  = LUBBOCK_SA1111_IRQ,
209                 .end    = LUBBOCK_SA1111_IRQ,
210                 .flags  = IORESOURCE_IRQ,
211         },
212 };
213
214 static struct platform_device sa1111_device = {
215         .name           = "sa1111",
216         .id             = -1,
217         .num_resources  = ARRAY_SIZE(sa1111_resources),
218         .resource       = sa1111_resources,
219 };
220
221 /* ADS7846 is connected through SSP ... and if your board has J5 populated,
222  * you can select it to replace the ucb1400 by switching the touchscreen cable
223  * (to J5) and poking board registers (as done below).  Else it's only useful
224  * for the temperature sensors.
225  */
226 static struct pxa2xx_spi_master pxa_ssp_master_info = {
227         .num_chipselect = 0,
228 };
229
230 static int lubbock_ads7846_pendown_state(void)
231 {
232         /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
233         return 0;
234 }
235
236 static struct ads7846_platform_data ads_info = {
237         .model                  = 7846,
238         .vref_delay_usecs       = 100,          /* internal, no cap */
239         .get_pendown_state      = lubbock_ads7846_pendown_state,
240         // .x_plate_ohms                = 500,  /* GUESS! */
241         // .y_plate_ohms                = 500,  /* GUESS! */
242 };
243
244 static void ads7846_cs(u32 command)
245 {
246         static const unsigned   TS_nCS = 1 << 11;
247         lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
248 }
249
250 static struct pxa2xx_spi_chip ads_hw = {
251         .tx_threshold           = 1,
252         .rx_threshold           = 2,
253         .cs_control             = ads7846_cs,
254 };
255
256 static struct spi_board_info spi_board_info[] __initdata = { {
257         .modalias       = "ads7846",
258         .platform_data  = &ads_info,
259         .controller_data = &ads_hw,
260         .irq            = LUBBOCK_BB_IRQ,
261         .max_speed_hz   = 120000 /* max sample rate at 3V */
262                                 * 26 /* command + data + overhead */,
263         .bus_num        = 1,
264         .chip_select    = 0,
265 },
266 };
267
268 static struct resource smc91x_resources[] = {
269         [0] = {
270                 .name   = "smc91x-regs",
271                 .start  = 0x0c000c00,
272                 .end    = 0x0c0fffff,
273                 .flags  = IORESOURCE_MEM,
274         },
275         [1] = {
276                 .start  = LUBBOCK_ETH_IRQ,
277                 .end    = LUBBOCK_ETH_IRQ,
278                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
279         },
280         [2] = {
281                 .name   = "smc91x-attrib",
282                 .start  = 0x0e000000,
283                 .end    = 0x0e0fffff,
284                 .flags  = IORESOURCE_MEM,
285         },
286 };
287
288 static struct smc91x_platdata lubbock_smc91x_info = {
289         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
290 };
291
292 static struct platform_device smc91x_device = {
293         .name           = "smc91x",
294         .id             = -1,
295         .num_resources  = ARRAY_SIZE(smc91x_resources),
296         .resource       = smc91x_resources,
297         .dev            = {
298                 .platform_data = &lubbock_smc91x_info,
299         },
300 };
301
302 static struct resource flash_resources[] = {
303         [0] = {
304                 .start  = 0x00000000,
305                 .end    = SZ_64M - 1,
306                 .flags  = IORESOURCE_MEM,
307         },
308         [1] = {
309                 .start  = 0x04000000,
310                 .end    = 0x04000000 + SZ_64M - 1,
311                 .flags  = IORESOURCE_MEM,
312         },
313 };
314
315 static struct mtd_partition lubbock_partitions[] = {
316         {
317                 .name =         "Bootloader",
318                 .size =         0x00040000,
319                 .offset =       0,
320                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
321         },{
322                 .name =         "Kernel",
323                 .size =         0x00100000,
324                 .offset =       0x00040000,
325         },{
326                 .name =         "Filesystem",
327                 .size =         MTDPART_SIZ_FULL,
328                 .offset =       0x00140000
329         }
330 };
331
332 static struct flash_platform_data lubbock_flash_data[2] = {
333         {
334                 .map_name       = "cfi_probe",
335                 .parts          = lubbock_partitions,
336                 .nr_parts       = ARRAY_SIZE(lubbock_partitions),
337         }, {
338                 .map_name       = "cfi_probe",
339                 .parts          = NULL,
340                 .nr_parts       = 0,
341         }
342 };
343
344 static struct platform_device lubbock_flash_device[2] = {
345         {
346                 .name           = "pxa2xx-flash",
347                 .id             = 0,
348                 .dev = {
349                         .platform_data = &lubbock_flash_data[0],
350                 },
351                 .resource = &flash_resources[0],
352                 .num_resources = 1,
353         },
354         {
355                 .name           = "pxa2xx-flash",
356                 .id             = 1,
357                 .dev = {
358                         .platform_data = &lubbock_flash_data[1],
359                 },
360                 .resource = &flash_resources[1],
361                 .num_resources = 1,
362         },
363 };
364
365 static struct platform_device *devices[] __initdata = {
366         &sa1111_device,
367         &smc91x_device,
368         &lubbock_flash_device[0],
369         &lubbock_flash_device[1],
370 };
371
372 static struct pxafb_mode_info sharp_lm8v31_mode = {
373         .pixclock       = 270000,
374         .xres           = 640,
375         .yres           = 480,
376         .bpp            = 16,
377         .hsync_len      = 1,
378         .left_margin    = 3,
379         .right_margin   = 3,
380         .vsync_len      = 1,
381         .upper_margin   = 0,
382         .lower_margin   = 0,
383         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
384         .cmap_greyscale = 0,
385 };
386
387 static struct pxafb_mach_info sharp_lm8v31 = {
388         .modes          = &sharp_lm8v31_mode,
389         .num_modes      = 1,
390         .cmap_inverse   = 0,
391         .cmap_static    = 0,
392         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
393                           LCD_AC_BIAS_FREQ(255),
394 };
395
396 #define MMC_POLL_RATE           msecs_to_jiffies(1000)
397
398 static void lubbock_mmc_poll(unsigned long);
399 static irq_handler_t mmc_detect_int;
400
401 static struct timer_list mmc_timer = {
402         .function       = lubbock_mmc_poll,
403 };
404
405 static void lubbock_mmc_poll(unsigned long data)
406 {
407         unsigned long flags;
408
409         /* clear any previous irq state, then ... */
410         local_irq_save(flags);
411         LUB_IRQ_SET_CLR &= ~(1 << 0);
412         local_irq_restore(flags);
413
414         /* poll until mmc/sd card is removed */
415         if (LUB_IRQ_SET_CLR & (1 << 0))
416                 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
417         else {
418                 (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
419                 enable_irq(LUBBOCK_SD_IRQ);
420         }
421 }
422
423 static irqreturn_t lubbock_detect_int(int irq, void *data)
424 {
425         /* IRQ is level triggered; disable, and poll for removal */
426         disable_irq(irq);
427         mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
428
429         return mmc_detect_int(irq, data);
430 }
431
432 static int lubbock_mci_init(struct device *dev,
433                 irq_handler_t detect_int,
434                 void *data)
435 {
436         /* detect card insert/eject */
437         mmc_detect_int = detect_int;
438         init_timer(&mmc_timer);
439         mmc_timer.data = (unsigned long) data;
440         return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
441                         IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
442 }
443
444 static int lubbock_mci_get_ro(struct device *dev)
445 {
446         return (LUB_MISC_RD & (1 << 2)) != 0;
447 }
448
449 static void lubbock_mci_exit(struct device *dev, void *data)
450 {
451         free_irq(LUBBOCK_SD_IRQ, data);
452         del_timer_sync(&mmc_timer);
453 }
454
455 static struct pxamci_platform_data lubbock_mci_platform_data = {
456         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
457         .detect_delay   = 1,
458         .init           = lubbock_mci_init,
459         .get_ro         = lubbock_mci_get_ro,
460         .exit           = lubbock_mci_exit,
461 };
462
463 static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
464 {
465         unsigned long flags;
466
467         local_irq_save(flags);
468         if (mode & IR_SIRMODE) {
469                 LUB_MISC_WR &= ~(1 << 4);
470         } else if (mode & IR_FIRMODE) {
471                 LUB_MISC_WR |= 1 << 4;
472         }
473         pxa2xx_transceiver_mode(dev, mode);
474         local_irq_restore(flags);
475 }
476
477 static struct pxaficp_platform_data lubbock_ficp_platform_data = {
478         .transceiver_cap  = IR_SIRMODE | IR_FIRMODE,
479         .transceiver_mode = lubbock_irda_transceiver_mode,
480 };
481
482 static void __init lubbock_init(void)
483 {
484         int flashboot = (LUB_CONF_SWITCHES & 1);
485
486         pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
487
488         pxa_set_udc_info(&udc_info);
489         set_pxa_fb_info(&sharp_lm8v31);
490         pxa_set_mci_info(&lubbock_mci_platform_data);
491         pxa_set_ficp_info(&lubbock_ficp_platform_data);
492         pxa_set_ac97_info(NULL);
493
494         lubbock_flash_data[0].width = lubbock_flash_data[1].width =
495                 (BOOT_DEF & 1) ? 2 : 4;
496         /* Compensate for the nROMBT switch which swaps the flash banks */
497         printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
498                flashboot?"Flash":"ROM", flashboot);
499
500         lubbock_flash_data[flashboot^1].name = "application-flash";
501         lubbock_flash_data[flashboot].name = "boot-rom";
502         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
503
504         pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
505         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
506 }
507
508 static struct map_desc lubbock_io_desc[] __initdata = {
509         {       /* CPLD */
510                 .virtual        =  LUBBOCK_FPGA_VIRT,
511                 .pfn            = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
512                 .length         = 0x00100000,
513                 .type           = MT_DEVICE
514         }
515 };
516
517 static void __init lubbock_map_io(void)
518 {
519         pxa_map_io();
520         iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
521
522         PCFR |= PCFR_OPDE;
523 }
524
525 MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
526         /* Maintainer: MontaVista Software Inc. */
527         .phys_io        = 0x40000000,
528         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
529         .map_io         = lubbock_map_io,
530         .init_irq       = lubbock_init_irq,
531         .timer          = &pxa_timer,
532         .init_machine   = lubbock_init,
533 MACHINE_END