[ARM] pxa: introduce pxa{25x,27x,300,320,930}.h for board usage
[linux-2.6] / 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/pxa25x.h>
45 #include <mach/audio.h>
46 #include <mach/lubbock.h>
47 #include <mach/udc.h>
48 #include <mach/irda.h>
49 #include <mach/pxafb.h>
50 #include <mach/mmc.h>
51
52 #include "generic.h"
53 #include "clock.h"
54 #include "devices.h"
55
56 static unsigned long lubbock_pin_config[] __initdata = {
57         GPIO15_nCS_1,   /* CS1 - Flash */
58         GPIO78_nCS_2,   /* CS2 - Baseboard FGPA */
59         GPIO79_nCS_3,   /* CS3 - SMC ethernet */
60         GPIO80_nCS_4,   /* CS4 - SA1111 */
61
62         /* SSP data pins */
63         GPIO23_SSP1_SCLK,
64         GPIO25_SSP1_TXD,
65         GPIO26_SSP1_RXD,
66
67         /* LCD - 16bpp DSTN */
68         GPIO58_LCD_LDD_0,
69         GPIO59_LCD_LDD_1,
70         GPIO60_LCD_LDD_2,
71         GPIO61_LCD_LDD_3,
72         GPIO62_LCD_LDD_4,
73         GPIO63_LCD_LDD_5,
74         GPIO64_LCD_LDD_6,
75         GPIO65_LCD_LDD_7,
76         GPIO66_LCD_LDD_8,
77         GPIO67_LCD_LDD_9,
78         GPIO68_LCD_LDD_10,
79         GPIO69_LCD_LDD_11,
80         GPIO70_LCD_LDD_12,
81         GPIO71_LCD_LDD_13,
82         GPIO72_LCD_LDD_14,
83         GPIO73_LCD_LDD_15,
84         GPIO74_LCD_FCLK,
85         GPIO75_LCD_LCLK,
86         GPIO76_LCD_PCLK,
87
88         /* BTUART */
89         GPIO42_BTUART_RXD,
90         GPIO43_BTUART_TXD,
91         GPIO44_BTUART_CTS,
92         GPIO45_BTUART_RTS,
93
94         /* PC Card */
95         GPIO48_nPOE,
96         GPIO49_nPWE,
97         GPIO50_nPIOR,
98         GPIO51_nPIOW,
99         GPIO52_nPCE_1,
100         GPIO53_nPCE_2,
101         GPIO54_nPSKTSEL,
102         GPIO55_nPREG,
103         GPIO56_nPWAIT,
104         GPIO57_nIOIS16,
105
106         /* MMC */
107         GPIO6_MMC_CLK,
108         GPIO8_MMC_CS0,
109
110         /* wakeup */
111         GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
112 };
113
114 #define LUB_MISC_WR             __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
115
116 void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
117 {
118         unsigned long flags;
119
120         local_irq_save(flags);
121         LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
122         local_irq_restore(flags);
123 }
124 EXPORT_SYMBOL(lubbock_set_misc_wr);
125
126 static unsigned long lubbock_irq_enabled;
127
128 static void lubbock_mask_irq(unsigned int irq)
129 {
130         int lubbock_irq = (irq - LUBBOCK_IRQ(0));
131         LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
132 }
133
134 static void lubbock_unmask_irq(unsigned int irq)
135 {
136         int lubbock_irq = (irq - LUBBOCK_IRQ(0));
137         /* the irq can be acknowledged only if deasserted, so it's done here */
138         LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
139         LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
140 }
141
142 static struct irq_chip lubbock_irq_chip = {
143         .name           = "FPGA",
144         .ack            = lubbock_mask_irq,
145         .mask           = lubbock_mask_irq,
146         .unmask         = lubbock_unmask_irq,
147 };
148
149 static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
150 {
151         unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
152         do {
153                 GEDR(0) = GPIO_bit(0);  /* clear our parent irq */
154                 if (likely(pending)) {
155                         irq = LUBBOCK_IRQ(0) + __ffs(pending);
156                         generic_handle_irq(irq);
157                 }
158                 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
159         } while (pending);
160 }
161
162 static void __init lubbock_init_irq(void)
163 {
164         int irq;
165
166         pxa25x_init_irq();
167
168         /* setup extra lubbock irqs */
169         for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
170                 set_irq_chip(irq, &lubbock_irq_chip);
171                 set_irq_handler(irq, handle_level_irq);
172                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
173         }
174
175         set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
176         set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
177 }
178
179 #ifdef CONFIG_PM
180
181 static int lubbock_irq_resume(struct sys_device *dev)
182 {
183         LUB_IRQ_MASK_EN = lubbock_irq_enabled;
184         return 0;
185 }
186
187 static struct sysdev_class lubbock_irq_sysclass = {
188         .name = "cpld_irq",
189         .resume = lubbock_irq_resume,
190 };
191
192 static struct sys_device lubbock_irq_device = {
193         .cls = &lubbock_irq_sysclass,
194 };
195
196 static int __init lubbock_irq_device_init(void)
197 {
198         int ret = -ENODEV;
199
200         if (machine_is_lubbock()) {
201                 ret = sysdev_class_register(&lubbock_irq_sysclass);
202                 if (ret == 0)
203                         ret = sysdev_register(&lubbock_irq_device);
204         }
205         return ret;
206 }
207
208 device_initcall(lubbock_irq_device_init);
209
210 #endif
211
212 static int lubbock_udc_is_connected(void)
213 {
214         return (LUB_MISC_RD & (1 << 9)) == 0;
215 }
216
217 static struct pxa2xx_udc_mach_info udc_info __initdata = {
218         .udc_is_connected       = lubbock_udc_is_connected,
219         // no D+ pullup; lubbock can't connect/disconnect in software
220 };
221
222 static struct resource sa1111_resources[] = {
223         [0] = {
224                 .start  = 0x10000000,
225                 .end    = 0x10001fff,
226                 .flags  = IORESOURCE_MEM,
227         },
228         [1] = {
229                 .start  = LUBBOCK_SA1111_IRQ,
230                 .end    = LUBBOCK_SA1111_IRQ,
231                 .flags  = IORESOURCE_IRQ,
232         },
233 };
234
235 static struct platform_device sa1111_device = {
236         .name           = "sa1111",
237         .id             = -1,
238         .num_resources  = ARRAY_SIZE(sa1111_resources),
239         .resource       = sa1111_resources,
240 };
241
242 /* ADS7846 is connected through SSP ... and if your board has J5 populated,
243  * you can select it to replace the ucb1400 by switching the touchscreen cable
244  * (to J5) and poking board registers (as done below).  Else it's only useful
245  * for the temperature sensors.
246  */
247 static struct pxa2xx_spi_master pxa_ssp_master_info = {
248         .num_chipselect = 1,
249 };
250
251 static int lubbock_ads7846_pendown_state(void)
252 {
253         /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
254         return 0;
255 }
256
257 static struct ads7846_platform_data ads_info = {
258         .model                  = 7846,
259         .vref_delay_usecs       = 100,          /* internal, no cap */
260         .get_pendown_state      = lubbock_ads7846_pendown_state,
261         // .x_plate_ohms                = 500,  /* GUESS! */
262         // .y_plate_ohms                = 500,  /* GUESS! */
263 };
264
265 static void ads7846_cs(u32 command)
266 {
267         static const unsigned   TS_nCS = 1 << 11;
268         lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
269 }
270
271 static struct pxa2xx_spi_chip ads_hw = {
272         .tx_threshold           = 1,
273         .rx_threshold           = 2,
274         .cs_control             = ads7846_cs,
275 };
276
277 static struct spi_board_info spi_board_info[] __initdata = { {
278         .modalias       = "ads7846",
279         .platform_data  = &ads_info,
280         .controller_data = &ads_hw,
281         .irq            = LUBBOCK_BB_IRQ,
282         .max_speed_hz   = 120000 /* max sample rate at 3V */
283                                 * 26 /* command + data + overhead */,
284         .bus_num        = 1,
285         .chip_select    = 0,
286 },
287 };
288
289 static struct resource smc91x_resources[] = {
290         [0] = {
291                 .name   = "smc91x-regs",
292                 .start  = 0x0c000c00,
293                 .end    = 0x0c0fffff,
294                 .flags  = IORESOURCE_MEM,
295         },
296         [1] = {
297                 .start  = LUBBOCK_ETH_IRQ,
298                 .end    = LUBBOCK_ETH_IRQ,
299                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
300         },
301         [2] = {
302                 .name   = "smc91x-attrib",
303                 .start  = 0x0e000000,
304                 .end    = 0x0e0fffff,
305                 .flags  = IORESOURCE_MEM,
306         },
307 };
308
309 static struct smc91x_platdata lubbock_smc91x_info = {
310         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
311 };
312
313 static struct platform_device smc91x_device = {
314         .name           = "smc91x",
315         .id             = -1,
316         .num_resources  = ARRAY_SIZE(smc91x_resources),
317         .resource       = smc91x_resources,
318         .dev            = {
319                 .platform_data = &lubbock_smc91x_info,
320         },
321 };
322
323 static struct resource flash_resources[] = {
324         [0] = {
325                 .start  = 0x00000000,
326                 .end    = SZ_64M - 1,
327                 .flags  = IORESOURCE_MEM,
328         },
329         [1] = {
330                 .start  = 0x04000000,
331                 .end    = 0x04000000 + SZ_64M - 1,
332                 .flags  = IORESOURCE_MEM,
333         },
334 };
335
336 static struct mtd_partition lubbock_partitions[] = {
337         {
338                 .name =         "Bootloader",
339                 .size =         0x00040000,
340                 .offset =       0,
341                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
342         },{
343                 .name =         "Kernel",
344                 .size =         0x00100000,
345                 .offset =       0x00040000,
346         },{
347                 .name =         "Filesystem",
348                 .size =         MTDPART_SIZ_FULL,
349                 .offset =       0x00140000
350         }
351 };
352
353 static struct flash_platform_data lubbock_flash_data[2] = {
354         {
355                 .map_name       = "cfi_probe",
356                 .parts          = lubbock_partitions,
357                 .nr_parts       = ARRAY_SIZE(lubbock_partitions),
358         }, {
359                 .map_name       = "cfi_probe",
360                 .parts          = NULL,
361                 .nr_parts       = 0,
362         }
363 };
364
365 static struct platform_device lubbock_flash_device[2] = {
366         {
367                 .name           = "pxa2xx-flash",
368                 .id             = 0,
369                 .dev = {
370                         .platform_data = &lubbock_flash_data[0],
371                 },
372                 .resource = &flash_resources[0],
373                 .num_resources = 1,
374         },
375         {
376                 .name           = "pxa2xx-flash",
377                 .id             = 1,
378                 .dev = {
379                         .platform_data = &lubbock_flash_data[1],
380                 },
381                 .resource = &flash_resources[1],
382                 .num_resources = 1,
383         },
384 };
385
386 static struct platform_device *devices[] __initdata = {
387         &sa1111_device,
388         &smc91x_device,
389         &lubbock_flash_device[0],
390         &lubbock_flash_device[1],
391 };
392
393 static struct pxafb_mode_info sharp_lm8v31_mode = {
394         .pixclock       = 270000,
395         .xres           = 640,
396         .yres           = 480,
397         .bpp            = 16,
398         .hsync_len      = 1,
399         .left_margin    = 3,
400         .right_margin   = 3,
401         .vsync_len      = 1,
402         .upper_margin   = 0,
403         .lower_margin   = 0,
404         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
405         .cmap_greyscale = 0,
406 };
407
408 static struct pxafb_mach_info sharp_lm8v31 = {
409         .modes          = &sharp_lm8v31_mode,
410         .num_modes      = 1,
411         .cmap_inverse   = 0,
412         .cmap_static    = 0,
413         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
414                           LCD_AC_BIAS_FREQ(255),
415 };
416
417 #define MMC_POLL_RATE           msecs_to_jiffies(1000)
418
419 static void lubbock_mmc_poll(unsigned long);
420 static irq_handler_t mmc_detect_int;
421
422 static struct timer_list mmc_timer = {
423         .function       = lubbock_mmc_poll,
424 };
425
426 static void lubbock_mmc_poll(unsigned long data)
427 {
428         unsigned long flags;
429
430         /* clear any previous irq state, then ... */
431         local_irq_save(flags);
432         LUB_IRQ_SET_CLR &= ~(1 << 0);
433         local_irq_restore(flags);
434
435         /* poll until mmc/sd card is removed */
436         if (LUB_IRQ_SET_CLR & (1 << 0))
437                 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
438         else {
439                 (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
440                 enable_irq(LUBBOCK_SD_IRQ);
441         }
442 }
443
444 static irqreturn_t lubbock_detect_int(int irq, void *data)
445 {
446         /* IRQ is level triggered; disable, and poll for removal */
447         disable_irq(irq);
448         mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
449
450         return mmc_detect_int(irq, data);
451 }
452
453 static int lubbock_mci_init(struct device *dev,
454                 irq_handler_t detect_int,
455                 void *data)
456 {
457         /* detect card insert/eject */
458         mmc_detect_int = detect_int;
459         init_timer(&mmc_timer);
460         mmc_timer.data = (unsigned long) data;
461         return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
462                         IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
463 }
464
465 static int lubbock_mci_get_ro(struct device *dev)
466 {
467         return (LUB_MISC_RD & (1 << 2)) != 0;
468 }
469
470 static void lubbock_mci_exit(struct device *dev, void *data)
471 {
472         free_irq(LUBBOCK_SD_IRQ, data);
473         del_timer_sync(&mmc_timer);
474 }
475
476 static struct pxamci_platform_data lubbock_mci_platform_data = {
477         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
478         .detect_delay   = 1,
479         .init           = lubbock_mci_init,
480         .get_ro         = lubbock_mci_get_ro,
481         .exit           = lubbock_mci_exit,
482 };
483
484 static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
485 {
486         unsigned long flags;
487
488         local_irq_save(flags);
489         if (mode & IR_SIRMODE) {
490                 LUB_MISC_WR &= ~(1 << 4);
491         } else if (mode & IR_FIRMODE) {
492                 LUB_MISC_WR |= 1 << 4;
493         }
494         pxa2xx_transceiver_mode(dev, mode);
495         local_irq_restore(flags);
496 }
497
498 static struct pxaficp_platform_data lubbock_ficp_platform_data = {
499         .transceiver_cap  = IR_SIRMODE | IR_FIRMODE,
500         .transceiver_mode = lubbock_irda_transceiver_mode,
501 };
502
503 static void __init lubbock_init(void)
504 {
505         int flashboot = (LUB_CONF_SWITCHES & 1);
506
507         pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
508
509         clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
510         pxa_set_udc_info(&udc_info);
511         set_pxa_fb_info(&sharp_lm8v31);
512         pxa_set_mci_info(&lubbock_mci_platform_data);
513         pxa_set_ficp_info(&lubbock_ficp_platform_data);
514         pxa_set_ac97_info(NULL);
515
516         lubbock_flash_data[0].width = lubbock_flash_data[1].width =
517                 (BOOT_DEF & 1) ? 2 : 4;
518         /* Compensate for the nROMBT switch which swaps the flash banks */
519         printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
520                flashboot?"Flash":"ROM", flashboot);
521
522         lubbock_flash_data[flashboot^1].name = "application-flash";
523         lubbock_flash_data[flashboot].name = "boot-rom";
524         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
525
526         pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
527         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
528 }
529
530 static struct map_desc lubbock_io_desc[] __initdata = {
531         {       /* CPLD */
532                 .virtual        =  LUBBOCK_FPGA_VIRT,
533                 .pfn            = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
534                 .length         = 0x00100000,
535                 .type           = MT_DEVICE
536         }
537 };
538
539 static void __init lubbock_map_io(void)
540 {
541         pxa_map_io();
542         iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
543
544         PCFR |= PCFR_OPDE;
545 }
546
547 MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
548         /* Maintainer: MontaVista Software Inc. */
549         .phys_io        = 0x40000000,
550         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
551         .map_io         = lubbock_map_io,
552         .init_irq       = lubbock_init_irq,
553         .timer          = &pxa_timer,
554         .init_machine   = lubbock_init,
555 MACHINE_END