arch: syscalls: simplify uapi/kapi directory creation
[linux-2.6-microblaze.git] / arch / arm / mach-pxa / lpd270.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * linux/arch/arm/mach-pxa/lpd270.c
4  *
5  * Support for the LogicPD PXA270 Card Engine.
6  * Derived from the mainstone code, which carries these notices:
7  *
8  * Author:      Nicolas Pitre
9  * Created:     Nov 05, 2002
10  * Copyright:   MontaVista Software Inc.
11  */
12 #include <linux/gpio.h>
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/syscore_ops.h>
16 #include <linux/interrupt.h>
17 #include <linux/sched.h>
18 #include <linux/bitops.h>
19 #include <linux/fb.h>
20 #include <linux/ioport.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/partitions.h>
23 #include <linux/pwm.h>
24 #include <linux/pwm_backlight.h>
25 #include <linux/smc91x.h>
26
27 #include <asm/types.h>
28 #include <asm/setup.h>
29 #include <asm/memory.h>
30 #include <asm/mach-types.h>
31 #include <mach/hardware.h>
32 #include <asm/irq.h>
33 #include <linux/sizes.h>
34
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/irq.h>
38 #include <asm/mach/flash.h>
39
40 #include "pxa27x.h"
41 #include "lpd270.h"
42 #include <mach/audio.h>
43 #include <linux/platform_data/video-pxafb.h>
44 #include <linux/platform_data/mmc-pxamci.h>
45 #include <linux/platform_data/irda-pxaficp.h>
46 #include <linux/platform_data/usb-ohci-pxa27x.h>
47 #include <mach/smemc.h>
48
49 #include "generic.h"
50 #include "devices.h"
51
52 static unsigned long lpd270_pin_config[] __initdata = {
53         /* Chip Selects */
54         GPIO15_nCS_1,   /* Mainboard Flash */
55         GPIO78_nCS_2,   /* CPLD + Ethernet */
56
57         /* LCD - 16bpp Active TFT */
58         GPIO58_LCD_LDD_0,
59         GPIO59_LCD_LDD_1,
60         GPIO60_LCD_LDD_2,
61         GPIO61_LCD_LDD_3,
62         GPIO62_LCD_LDD_4,
63         GPIO63_LCD_LDD_5,
64         GPIO64_LCD_LDD_6,
65         GPIO65_LCD_LDD_7,
66         GPIO66_LCD_LDD_8,
67         GPIO67_LCD_LDD_9,
68         GPIO68_LCD_LDD_10,
69         GPIO69_LCD_LDD_11,
70         GPIO70_LCD_LDD_12,
71         GPIO71_LCD_LDD_13,
72         GPIO72_LCD_LDD_14,
73         GPIO73_LCD_LDD_15,
74         GPIO74_LCD_FCLK,
75         GPIO75_LCD_LCLK,
76         GPIO76_LCD_PCLK,
77         GPIO77_LCD_BIAS,
78         GPIO16_PWM0_OUT,        /* Backlight */
79
80         /* USB Host */
81         GPIO88_USBH1_PWR,
82         GPIO89_USBH1_PEN,
83
84         /* AC97 */
85         GPIO28_AC97_BITCLK,
86         GPIO29_AC97_SDATA_IN_0,
87         GPIO30_AC97_SDATA_OUT,
88         GPIO31_AC97_SYNC,
89         GPIO45_AC97_SYSCLK,
90
91         GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
92 };
93
94 static unsigned int lpd270_irq_enabled;
95
96 static void lpd270_mask_irq(struct irq_data *d)
97 {
98         int lpd270_irq = d->irq - LPD270_IRQ(0);
99
100         __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
101
102         lpd270_irq_enabled &= ~(1 << lpd270_irq);
103         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
104 }
105
106 static void lpd270_unmask_irq(struct irq_data *d)
107 {
108         int lpd270_irq = d->irq - LPD270_IRQ(0);
109
110         lpd270_irq_enabled |= 1 << lpd270_irq;
111         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
112 }
113
114 static struct irq_chip lpd270_irq_chip = {
115         .name           = "CPLD",
116         .irq_ack        = lpd270_mask_irq,
117         .irq_mask       = lpd270_mask_irq,
118         .irq_unmask     = lpd270_unmask_irq,
119 };
120
121 static void lpd270_irq_handler(struct irq_desc *desc)
122 {
123         unsigned int irq;
124         unsigned long pending;
125
126         pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
127         do {
128                 /* clear useless edge notification */
129                 desc->irq_data.chip->irq_ack(&desc->irq_data);
130                 if (likely(pending)) {
131                         irq = LPD270_IRQ(0) + __ffs(pending);
132                         generic_handle_irq(irq);
133
134                         pending = __raw_readw(LPD270_INT_STATUS) &
135                                                 lpd270_irq_enabled;
136                 }
137         } while (pending);
138 }
139
140 static void __init lpd270_init_irq(void)
141 {
142         int irq;
143
144         pxa27x_init_irq();
145
146         __raw_writew(0, LPD270_INT_MASK);
147         __raw_writew(0, LPD270_INT_STATUS);
148
149         /* setup extra LogicPD PXA270 irqs */
150         for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
151                 irq_set_chip_and_handler(irq, &lpd270_irq_chip,
152                                          handle_level_irq);
153                 irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
154         }
155         irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
156         irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
157 }
158
159
160 #ifdef CONFIG_PM
161 static void lpd270_irq_resume(void)
162 {
163         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
164 }
165
166 static struct syscore_ops lpd270_irq_syscore_ops = {
167         .resume = lpd270_irq_resume,
168 };
169
170 static int __init lpd270_irq_device_init(void)
171 {
172         if (machine_is_logicpd_pxa270()) {
173                 register_syscore_ops(&lpd270_irq_syscore_ops);
174                 return 0;
175         }
176         return -ENODEV;
177 }
178
179 device_initcall(lpd270_irq_device_init);
180 #endif
181
182
183 static struct resource smc91x_resources[] = {
184         [0] = {
185                 .start  = LPD270_ETH_PHYS,
186                 .end    = (LPD270_ETH_PHYS + 0xfffff),
187                 .flags  = IORESOURCE_MEM,
188         },
189         [1] = {
190                 .start  = LPD270_ETHERNET_IRQ,
191                 .end    = LPD270_ETHERNET_IRQ,
192                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
193         },
194 };
195
196 struct smc91x_platdata smc91x_platdata = {
197         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
198 };
199
200 static struct platform_device smc91x_device = {
201         .name           = "smc91x",
202         .id             = 0,
203         .num_resources  = ARRAY_SIZE(smc91x_resources),
204         .resource       = smc91x_resources,
205         .dev.platform_data = &smc91x_platdata,
206 };
207
208 static struct resource lpd270_flash_resources[] = {
209         [0] = {
210                 .start  = PXA_CS0_PHYS,
211                 .end    = PXA_CS0_PHYS + SZ_64M - 1,
212                 .flags  = IORESOURCE_MEM,
213         },
214         [1] = {
215                 .start  = PXA_CS1_PHYS,
216                 .end    = PXA_CS1_PHYS + SZ_64M - 1,
217                 .flags  = IORESOURCE_MEM,
218         },
219 };
220
221 static struct mtd_partition lpd270_flash0_partitions[] = {
222         {
223                 .name =         "Bootloader",
224                 .size =         0x00040000,
225                 .offset =       0,
226                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
227         }, {
228                 .name =         "Kernel",
229                 .size =         0x00400000,
230                 .offset =       0x00040000,
231         }, {
232                 .name =         "Filesystem",
233                 .size =         MTDPART_SIZ_FULL,
234                 .offset =       0x00440000
235         },
236 };
237
238 static struct flash_platform_data lpd270_flash_data[2] = {
239         {
240                 .name           = "processor-flash",
241                 .map_name       = "cfi_probe",
242                 .parts          = lpd270_flash0_partitions,
243                 .nr_parts       = ARRAY_SIZE(lpd270_flash0_partitions),
244         }, {
245                 .name           = "mainboard-flash",
246                 .map_name       = "cfi_probe",
247                 .parts          = NULL,
248                 .nr_parts       = 0,
249         }
250 };
251
252 static struct platform_device lpd270_flash_device[2] = {
253         {
254                 .name           = "pxa2xx-flash",
255                 .id             = 0,
256                 .dev = {
257                         .platform_data  = &lpd270_flash_data[0],
258                 },
259                 .resource       = &lpd270_flash_resources[0],
260                 .num_resources  = 1,
261         }, {
262                 .name           = "pxa2xx-flash",
263                 .id             = 1,
264                 .dev = {
265                         .platform_data  = &lpd270_flash_data[1],
266                 },
267                 .resource       = &lpd270_flash_resources[1],
268                 .num_resources  = 1,
269         },
270 };
271
272 static struct pwm_lookup lpd270_pwm_lookup[] = {
273         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
274                    PWM_POLARITY_NORMAL),
275 };
276
277 static struct platform_pwm_backlight_data lpd270_backlight_data = {
278         .max_brightness = 1,
279         .dft_brightness = 1,
280 };
281
282 static struct platform_device lpd270_backlight_device = {
283         .name           = "pwm-backlight",
284         .dev            = {
285                 .parent = &pxa27x_device_pwm0.dev,
286                 .platform_data = &lpd270_backlight_data,
287         },
288 };
289
290 /* 5.7" TFT QVGA (LoLo display number 1) */
291 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
292         .pixclock               = 150000,
293         .xres                   = 320,
294         .yres                   = 240,
295         .bpp                    = 16,
296         .hsync_len              = 0x14,
297         .left_margin            = 0x28,
298         .right_margin           = 0x0a,
299         .vsync_len              = 0x02,
300         .upper_margin           = 0x08,
301         .lower_margin           = 0x14,
302         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
303 };
304
305 static struct pxafb_mach_info sharp_lq057q3dc02 = {
306         .modes                  = &sharp_lq057q3dc02_mode,
307         .num_modes              = 1,
308         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
309                                   LCD_ALTERNATE_MAPPING,
310 };
311
312 /* 12.1" TFT SVGA (LoLo display number 2) */
313 static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
314         .pixclock               = 50000,
315         .xres                   = 800,
316         .yres                   = 600,
317         .bpp                    = 16,
318         .hsync_len              = 0x05,
319         .left_margin            = 0x52,
320         .right_margin           = 0x05,
321         .vsync_len              = 0x04,
322         .upper_margin           = 0x14,
323         .lower_margin           = 0x0a,
324         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
325 };
326
327 static struct pxafb_mach_info sharp_lq121s1dg31 = {
328         .modes                  = &sharp_lq121s1dg31_mode,
329         .num_modes              = 1,
330         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
331                                   LCD_ALTERNATE_MAPPING,
332 };
333
334 /* 3.6" TFT QVGA (LoLo display number 3) */
335 static struct pxafb_mode_info sharp_lq036q1da01_mode = {
336         .pixclock               = 150000,
337         .xres                   = 320,
338         .yres                   = 240,
339         .bpp                    = 16,
340         .hsync_len              = 0x0e,
341         .left_margin            = 0x04,
342         .right_margin           = 0x0a,
343         .vsync_len              = 0x03,
344         .upper_margin           = 0x03,
345         .lower_margin           = 0x03,
346         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
347 };
348
349 static struct pxafb_mach_info sharp_lq036q1da01 = {
350         .modes                  = &sharp_lq036q1da01_mode,
351         .num_modes              = 1,
352         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
353                                   LCD_ALTERNATE_MAPPING,
354 };
355
356 /* 6.4" TFT VGA (LoLo display number 5) */
357 static struct pxafb_mode_info sharp_lq64d343_mode = {
358         .pixclock               = 25000,
359         .xres                   = 640,
360         .yres                   = 480,
361         .bpp                    = 16,
362         .hsync_len              = 0x31,
363         .left_margin            = 0x89,
364         .right_margin           = 0x19,
365         .vsync_len              = 0x12,
366         .upper_margin           = 0x22,
367         .lower_margin           = 0x00,
368         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
369 };
370
371 static struct pxafb_mach_info sharp_lq64d343 = {
372         .modes                  = &sharp_lq64d343_mode,
373         .num_modes              = 1,
374         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
375                                   LCD_ALTERNATE_MAPPING,
376 };
377
378 /* 10.4" TFT VGA (LoLo display number 7) */
379 static struct pxafb_mode_info sharp_lq10d368_mode = {
380         .pixclock               = 25000,
381         .xres                   = 640,
382         .yres                   = 480,
383         .bpp                    = 16,
384         .hsync_len              = 0x31,
385         .left_margin            = 0x89,
386         .right_margin           = 0x19,
387         .vsync_len              = 0x12,
388         .upper_margin           = 0x22,
389         .lower_margin           = 0x00,
390         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
391 };
392
393 static struct pxafb_mach_info sharp_lq10d368 = {
394         .modes                  = &sharp_lq10d368_mode,
395         .num_modes              = 1,
396         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
397                                   LCD_ALTERNATE_MAPPING,
398 };
399
400 /* 3.5" TFT QVGA (LoLo display number 8) */
401 static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
402         .pixclock               = 150000,
403         .xres                   = 240,
404         .yres                   = 320,
405         .bpp                    = 16,
406         .hsync_len              = 0x0e,
407         .left_margin            = 0x0a,
408         .right_margin           = 0x0a,
409         .vsync_len              = 0x03,
410         .upper_margin           = 0x05,
411         .lower_margin           = 0x14,
412         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
413 };
414
415 static struct pxafb_mach_info sharp_lq035q7db02_20 = {
416         .modes                  = &sharp_lq035q7db02_20_mode,
417         .num_modes              = 1,
418         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
419                                   LCD_ALTERNATE_MAPPING,
420 };
421
422 static struct pxafb_mach_info *lpd270_lcd_to_use;
423
424 static int __init lpd270_set_lcd(char *str)
425 {
426         if (!strncasecmp(str, "lq057q3dc02", 11)) {
427                 lpd270_lcd_to_use = &sharp_lq057q3dc02;
428         } else if (!strncasecmp(str, "lq121s1dg31", 11)) {
429                 lpd270_lcd_to_use = &sharp_lq121s1dg31;
430         } else if (!strncasecmp(str, "lq036q1da01", 11)) {
431                 lpd270_lcd_to_use = &sharp_lq036q1da01;
432         } else if (!strncasecmp(str, "lq64d343", 8)) {
433                 lpd270_lcd_to_use = &sharp_lq64d343;
434         } else if (!strncasecmp(str, "lq10d368", 8)) {
435                 lpd270_lcd_to_use = &sharp_lq10d368;
436         } else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
437                 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
438         } else {
439                 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
440         }
441
442         return 1;
443 }
444
445 __setup("lcd=", lpd270_set_lcd);
446
447 static struct platform_device *platform_devices[] __initdata = {
448         &smc91x_device,
449         &lpd270_backlight_device,
450         &lpd270_flash_device[0],
451         &lpd270_flash_device[1],
452 };
453
454 static struct pxaohci_platform_data lpd270_ohci_platform_data = {
455         .port_mode      = PMM_PERPORT_MODE,
456         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
457 };
458
459 static void __init lpd270_init(void)
460 {
461         pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
462
463         pxa_set_ffuart_info(NULL);
464         pxa_set_btuart_info(NULL);
465         pxa_set_stuart_info(NULL);
466
467         lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
468         lpd270_flash_data[1].width = 4;
469
470         /*
471          * System bus arbiter setting:
472          * - Core_Park
473          * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
474          */
475         ARB_CNTRL = ARB_CORE_PARK | 0x234;
476
477         pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
478         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
479
480         pxa_set_ac97_info(NULL);
481
482         if (lpd270_lcd_to_use != NULL)
483                 pxa_set_fb_info(NULL, lpd270_lcd_to_use);
484
485         pxa_set_ohci_info(&lpd270_ohci_platform_data);
486 }
487
488
489 static struct map_desc lpd270_io_desc[] __initdata = {
490         {
491                 .virtual        = (unsigned long)LPD270_CPLD_VIRT,
492                 .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
493                 .length         = LPD270_CPLD_SIZE,
494                 .type           = MT_DEVICE,
495         },
496 };
497
498 static void __init lpd270_map_io(void)
499 {
500         pxa27x_map_io();
501         iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
502
503         /* for use I SRAM as framebuffer.  */
504         PSLR |= 0x00000F04;
505         PCFR  = 0x00000066;
506 }
507
508 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
509         /* Maintainer: Peter Barada */
510         .atag_offset    = 0x100,
511         .map_io         = lpd270_map_io,
512         .nr_irqs        = LPD270_NR_IRQS,
513         .init_irq       = lpd270_init_irq,
514         .handle_irq     = pxa27x_handle_irq,
515         .init_time      = pxa_timer_init,
516         .init_machine   = lpd270_init,
517         .restart        = pxa_restart,
518 MACHINE_END