Merge tag 'arc-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
[deliverable/linux.git] / arch / arm / mach-pxa / lpd270.c
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1/*
2 * linux/arch/arm/mach-pxa/lpd270.c
3 *
4 * Support for the LogicPD PXA270 Card Engine.
5 * Derived from the mainstone code, which carries these notices:
6 *
7 * Author: Nicolas Pitre
8 * Created: Nov 05, 2002
9 * Copyright: MontaVista Software Inc.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
2f8163ba 15#include <linux/gpio.h>
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16#include <linux/init.h>
17#include <linux/platform_device.h>
2eaa03b5 18#include <linux/syscore_ops.h>
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19#include <linux/interrupt.h>
20#include <linux/sched.h>
21#include <linux/bitops.h>
22#include <linux/fb.h>
23#include <linux/ioport.h>
24#include <linux/mtd/mtd.h>
25#include <linux/mtd/partitions.h>
2dc9975a 26#include <linux/pwm.h>
4a730719 27#include <linux/pwm_backlight.h>
b70661c7 28#include <linux/smc91x.h>
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29
30#include <asm/types.h>
31#include <asm/setup.h>
32#include <asm/memory.h>
33#include <asm/mach-types.h>
a09e64fb 34#include <mach/hardware.h>
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35#include <asm/irq.h>
36#include <asm/sizes.h>
37
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
40#include <asm/mach/irq.h>
41#include <asm/mach/flash.h>
42
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43#include "pxa27x.h"
44#include "lpd270.h"
a09e64fb 45#include <mach/audio.h>
293b2da1
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46#include <linux/platform_data/video-pxafb.h>
47#include <linux/platform_data/mmc-pxamci.h>
48#include <linux/platform_data/irda-pxaficp.h>
49#include <linux/platform_data/usb-ohci-pxa27x.h>
ad68bb9f 50#include <mach/smemc.h>
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51
52#include "generic.h"
46c41e62 53#include "devices.h"
e9937d4b 54
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55static unsigned long lpd270_pin_config[] __initdata = {
56 /* Chip Selects */
57 GPIO15_nCS_1, /* Mainboard Flash */
58 GPIO78_nCS_2, /* CPLD + Ethernet */
59
60 /* LCD - 16bpp Active TFT */
61 GPIO58_LCD_LDD_0,
62 GPIO59_LCD_LDD_1,
63 GPIO60_LCD_LDD_2,
64 GPIO61_LCD_LDD_3,
65 GPIO62_LCD_LDD_4,
66 GPIO63_LCD_LDD_5,
67 GPIO64_LCD_LDD_6,
68 GPIO65_LCD_LDD_7,
69 GPIO66_LCD_LDD_8,
70 GPIO67_LCD_LDD_9,
71 GPIO68_LCD_LDD_10,
72 GPIO69_LCD_LDD_11,
73 GPIO70_LCD_LDD_12,
74 GPIO71_LCD_LDD_13,
75 GPIO72_LCD_LDD_14,
76 GPIO73_LCD_LDD_15,
77 GPIO74_LCD_FCLK,
78 GPIO75_LCD_LCLK,
79 GPIO76_LCD_PCLK,
80 GPIO77_LCD_BIAS,
81 GPIO16_PWM0_OUT, /* Backlight */
82
83 /* USB Host */
84 GPIO88_USBH1_PWR,
85 GPIO89_USBH1_PEN,
86
87 /* AC97 */
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88 GPIO28_AC97_BITCLK,
89 GPIO29_AC97_SDATA_IN_0,
90 GPIO30_AC97_SDATA_OUT,
91 GPIO31_AC97_SYNC,
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92 GPIO45_AC97_SYSCLK,
93
94 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
95};
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96
97static unsigned int lpd270_irq_enabled;
98
a3f4c927 99static void lpd270_mask_irq(struct irq_data *d)
e9937d4b 100{
a3f4c927 101 int lpd270_irq = d->irq - LPD270_IRQ(0);
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102
103 __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
104
105 lpd270_irq_enabled &= ~(1 << lpd270_irq);
106 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
107}
108
a3f4c927 109static void lpd270_unmask_irq(struct irq_data *d)
e9937d4b 110{
a3f4c927 111 int lpd270_irq = d->irq - LPD270_IRQ(0);
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112
113 lpd270_irq_enabled |= 1 << lpd270_irq;
114 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
115}
116
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117static struct irq_chip lpd270_irq_chip = {
118 .name = "CPLD",
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119 .irq_ack = lpd270_mask_irq,
120 .irq_mask = lpd270_mask_irq,
121 .irq_unmask = lpd270_unmask_irq,
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122};
123
bd0b9ac4 124static void lpd270_irq_handler(struct irq_desc *desc)
e9937d4b 125{
6947d04a 126 unsigned int irq;
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127 unsigned long pending;
128
129 pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
130 do {
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131 /* clear useless edge notification */
132 desc->irq_data.chip->irq_ack(&desc->irq_data);
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133 if (likely(pending)) {
134 irq = LPD270_IRQ(0) + __ffs(pending);
d8aa0251 135 generic_handle_irq(irq);
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136
137 pending = __raw_readw(LPD270_INT_STATUS) &
138 lpd270_irq_enabled;
139 }
140 } while (pending);
141}
142
143static void __init lpd270_init_irq(void)
144{
145 int irq;
146
cd49104d 147 pxa27x_init_irq();
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148
149 __raw_writew(0, LPD270_INT_MASK);
150 __raw_writew(0, LPD270_INT_STATUS);
151
152 /* setup extra LogicPD PXA270 irqs */
153 for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
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154 irq_set_chip_and_handler(irq, &lpd270_irq_chip,
155 handle_level_irq);
e8d36d5d 156 irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
e9937d4b 157 }
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158 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
159 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
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160}
161
162
163#ifdef CONFIG_PM
2eaa03b5 164static void lpd270_irq_resume(void)
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165{
166 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
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167}
168
2eaa03b5 169static struct syscore_ops lpd270_irq_syscore_ops = {
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170 .resume = lpd270_irq_resume,
171};
172
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173static int __init lpd270_irq_device_init(void)
174{
720046de 175 if (machine_is_logicpd_pxa270()) {
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176 register_syscore_ops(&lpd270_irq_syscore_ops);
177 return 0;
720046de 178 }
2eaa03b5 179 return -ENODEV;
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180}
181
182device_initcall(lpd270_irq_device_init);
183#endif
184
185
186static struct resource smc91x_resources[] = {
187 [0] = {
188 .start = LPD270_ETH_PHYS,
189 .end = (LPD270_ETH_PHYS + 0xfffff),
190 .flags = IORESOURCE_MEM,
191 },
192 [1] = {
193 .start = LPD270_ETHERNET_IRQ,
194 .end = LPD270_ETHERNET_IRQ,
b70661c7 195 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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196 },
197};
198
b70661c7 199struct smc91x_platdata smc91x_platdata = {
04b91701 200 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
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201};
202
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203static struct platform_device smc91x_device = {
204 .name = "smc91x",
205 .id = 0,
206 .num_resources = ARRAY_SIZE(smc91x_resources),
207 .resource = smc91x_resources,
b70661c7 208 .dev.platform_data = &smc91x_platdata,
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209};
210
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211static struct resource lpd270_flash_resources[] = {
212 [0] = {
213 .start = PXA_CS0_PHYS,
214 .end = PXA_CS0_PHYS + SZ_64M - 1,
215 .flags = IORESOURCE_MEM,
216 },
217 [1] = {
218 .start = PXA_CS1_PHYS,
219 .end = PXA_CS1_PHYS + SZ_64M - 1,
220 .flags = IORESOURCE_MEM,
221 },
222};
223
224static struct mtd_partition lpd270_flash0_partitions[] = {
225 {
226 .name = "Bootloader",
227 .size = 0x00040000,
228 .offset = 0,
229 .mask_flags = MTD_WRITEABLE /* force read-only */
230 }, {
231 .name = "Kernel",
232 .size = 0x00400000,
233 .offset = 0x00040000,
234 }, {
235 .name = "Filesystem",
236 .size = MTDPART_SIZ_FULL,
237 .offset = 0x00440000
238 },
239};
240
241static struct flash_platform_data lpd270_flash_data[2] = {
242 {
243 .name = "processor-flash",
244 .map_name = "cfi_probe",
245 .parts = lpd270_flash0_partitions,
246 .nr_parts = ARRAY_SIZE(lpd270_flash0_partitions),
247 }, {
248 .name = "mainboard-flash",
249 .map_name = "cfi_probe",
250 .parts = NULL,
251 .nr_parts = 0,
252 }
253};
254
255static struct platform_device lpd270_flash_device[2] = {
256 {
257 .name = "pxa2xx-flash",
258 .id = 0,
259 .dev = {
260 .platform_data = &lpd270_flash_data[0],
261 },
262 .resource = &lpd270_flash_resources[0],
263 .num_resources = 1,
264 }, {
265 .name = "pxa2xx-flash",
266 .id = 1,
267 .dev = {
268 .platform_data = &lpd270_flash_data[1],
269 },
270 .resource = &lpd270_flash_resources[1],
271 .num_resources = 1,
272 },
273};
274
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TR
275static struct pwm_lookup lpd270_pwm_lookup[] = {
276 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
277 PWM_POLARITY_NORMAL),
278};
279
4a730719 280static struct platform_pwm_backlight_data lpd270_backlight_data = {
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281 .max_brightness = 1,
282 .dft_brightness = 1,
db01120c 283 .enable_gpio = -1,
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284};
285
286static struct platform_device lpd270_backlight_device = {
287 .name = "pwm-backlight",
288 .dev = {
289 .parent = &pxa27x_device_pwm0.dev,
290 .platform_data = &lpd270_backlight_data,
291 },
292};
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293
294/* 5.7" TFT QVGA (LoLo display number 1) */
d14b272b 295static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
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296 .pixclock = 150000,
297 .xres = 320,
298 .yres = 240,
e9937d4b 299 .bpp = 16,
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300 .hsync_len = 0x14,
301 .left_margin = 0x28,
302 .right_margin = 0x0a,
303 .vsync_len = 0x02,
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304 .upper_margin = 0x08,
305 .lower_margin = 0x14,
65660297 306 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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307};
308
309static struct pxafb_mach_info sharp_lq057q3dc02 = {
310 .modes = &sharp_lq057q3dc02_mode,
311 .num_modes = 1,
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312 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
313 LCD_ALTERNATE_MAPPING,
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314};
315
316/* 12.1" TFT SVGA (LoLo display number 2) */
d14b272b 317static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
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318 .pixclock = 50000,
319 .xres = 800,
320 .yres = 600,
321 .bpp = 16,
322 .hsync_len = 0x05,
323 .left_margin = 0x52,
324 .right_margin = 0x05,
325 .vsync_len = 0x04,
326 .upper_margin = 0x14,
327 .lower_margin = 0x0a,
328 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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329};
330
331static struct pxafb_mach_info sharp_lq121s1dg31 = {
332 .modes = &sharp_lq121s1dg31_mode,
333 .num_modes = 1,
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334 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
335 LCD_ALTERNATE_MAPPING,
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336};
337
338/* 3.6" TFT QVGA (LoLo display number 3) */
d14b272b 339static struct pxafb_mode_info sharp_lq036q1da01_mode = {
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340 .pixclock = 150000,
341 .xres = 320,
342 .yres = 240,
343 .bpp = 16,
344 .hsync_len = 0x0e,
345 .left_margin = 0x04,
346 .right_margin = 0x0a,
347 .vsync_len = 0x03,
348 .upper_margin = 0x03,
349 .lower_margin = 0x03,
350 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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351};
352
353static struct pxafb_mach_info sharp_lq036q1da01 = {
354 .modes = &sharp_lq036q1da01_mode,
355 .num_modes = 1,
0219e835
EM
356 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
357 LCD_ALTERNATE_MAPPING,
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358};
359
360/* 6.4" TFT VGA (LoLo display number 5) */
d14b272b 361static struct pxafb_mode_info sharp_lq64d343_mode = {
65660297 362 .pixclock = 25000,
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363 .xres = 640,
364 .yres = 480,
365 .bpp = 16,
65660297 366 .hsync_len = 0x31,
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367 .left_margin = 0x89,
368 .right_margin = 0x19,
65660297 369 .vsync_len = 0x12,
e9937d4b 370 .upper_margin = 0x22,
65660297 371 .lower_margin = 0x00,
e9937d4b 372 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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373};
374
375static struct pxafb_mach_info sharp_lq64d343 = {
376 .modes = &sharp_lq64d343_mode,
377 .num_modes = 1,
0219e835
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378 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
379 LCD_ALTERNATE_MAPPING,
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380};
381
382/* 10.4" TFT VGA (LoLo display number 7) */
d14b272b 383static struct pxafb_mode_info sharp_lq10d368_mode = {
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384 .pixclock = 25000,
385 .xres = 640,
386 .yres = 480,
387 .bpp = 16,
388 .hsync_len = 0x31,
389 .left_margin = 0x89,
390 .right_margin = 0x19,
391 .vsync_len = 0x12,
392 .upper_margin = 0x22,
393 .lower_margin = 0x00,
394 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
d14b272b
RP
395};
396
397static struct pxafb_mach_info sharp_lq10d368 = {
398 .modes = &sharp_lq10d368_mode,
399 .num_modes = 1,
0219e835
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400 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
401 LCD_ALTERNATE_MAPPING,
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402};
403
404/* 3.5" TFT QVGA (LoLo display number 8) */
d14b272b 405static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
65660297 406 .pixclock = 150000,
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407 .xres = 240,
408 .yres = 320,
409 .bpp = 16,
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410 .hsync_len = 0x0e,
411 .left_margin = 0x0a,
412 .right_margin = 0x0a,
413 .vsync_len = 0x03,
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414 .upper_margin = 0x05,
415 .lower_margin = 0x14,
65660297 416 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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417};
418
419static struct pxafb_mach_info sharp_lq035q7db02_20 = {
420 .modes = &sharp_lq035q7db02_20_mode,
421 .num_modes = 1,
0219e835
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422 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
423 LCD_ALTERNATE_MAPPING,
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424};
425
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426static struct pxafb_mach_info *lpd270_lcd_to_use;
427
428static int __init lpd270_set_lcd(char *str)
429{
2bebf5cb 430 if (!strncasecmp(str, "lq057q3dc02", 11)) {
65660297 431 lpd270_lcd_to_use = &sharp_lq057q3dc02;
2bebf5cb 432 } else if (!strncasecmp(str, "lq121s1dg31", 11)) {
65660297 433 lpd270_lcd_to_use = &sharp_lq121s1dg31;
2bebf5cb 434 } else if (!strncasecmp(str, "lq036q1da01", 11)) {
65660297 435 lpd270_lcd_to_use = &sharp_lq036q1da01;
2bebf5cb 436 } else if (!strncasecmp(str, "lq64d343", 8)) {
65660297 437 lpd270_lcd_to_use = &sharp_lq64d343;
2bebf5cb 438 } else if (!strncasecmp(str, "lq10d368", 8)) {
65660297 439 lpd270_lcd_to_use = &sharp_lq10d368;
2bebf5cb 440 } else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
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441 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
442 } else {
443 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
444 }
445
446 return 1;
447}
448
449__setup("lcd=", lpd270_set_lcd);
450
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451static struct platform_device *platform_devices[] __initdata = {
452 &smc91x_device,
4a730719 453 &lpd270_backlight_device,
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454 &lpd270_flash_device[0],
455 &lpd270_flash_device[1],
456};
457
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458static struct pxaohci_platform_data lpd270_ohci_platform_data = {
459 .port_mode = PMM_PERPORT_MODE,
097b5334 460 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
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461};
462
463static void __init lpd270_init(void)
464{
fd90ff20
EM
465 pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
466
cc155c6f
RK
467 pxa_set_ffuart_info(NULL);
468 pxa_set_btuart_info(NULL);
469 pxa_set_stuart_info(NULL);
470
ad68bb9f 471 lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
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472 lpd270_flash_data[1].width = 4;
473
474 /*
475 * System bus arbiter setting:
476 * - Core_Park
477 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
478 */
479 ARB_CNTRL = ARB_CORE_PARK | 0x234;
480
2dc9975a 481 pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
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482 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
483
9f19d638
MB
484 pxa_set_ac97_info(NULL);
485
65660297 486 if (lpd270_lcd_to_use != NULL)
4321e1a1 487 pxa_set_fb_info(NULL, lpd270_lcd_to_use);
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488
489 pxa_set_ohci_info(&lpd270_ohci_platform_data);
490}
491
492
493static struct map_desc lpd270_io_desc[] __initdata = {
494 {
97b09da4 495 .virtual = (unsigned long)LPD270_CPLD_VIRT,
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496 .pfn = __phys_to_pfn(LPD270_CPLD_PHYS),
497 .length = LPD270_CPLD_SIZE,
498 .type = MT_DEVICE,
499 },
500};
501
502static void __init lpd270_map_io(void)
503{
851982c1 504 pxa27x_map_io();
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505 iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
506
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507 /* for use I SRAM as framebuffer. */
508 PSLR |= 0x00000F04;
509 PCFR = 0x00000066;
510}
511
512MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
513 /* Maintainer: Peter Barada */
7375aba6 514 .atag_offset = 0x100,
e9937d4b 515 .map_io = lpd270_map_io,
6ac6b817 516 .nr_irqs = LPD270_NR_IRQS,
e9937d4b 517 .init_irq = lpd270_init_irq,
8a97ae2f 518 .handle_irq = pxa27x_handle_irq,
6bb27d73 519 .init_time = pxa_timer_init,
e9937d4b 520 .init_machine = lpd270_init,
271a74fc 521 .restart = pxa_restart,
e9937d4b 522MACHINE_END
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