diff options
Diffstat (limited to 'arch/arm/mach-pxa/zeus.c')
-rw-r--r-- | arch/arm/mach-pxa/zeus.c | 820 |
1 files changed, 820 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c new file mode 100644 index 000000000000..5b986a8bd9e6 --- /dev/null +++ b/arch/arm/mach-pxa/zeus.c | |||
@@ -0,0 +1,820 @@ | |||
1 | /* | ||
2 | * Support for the Arcom ZEUS. | ||
3 | * | ||
4 | * Copyright (C) 2006 Arcom Control Systems Ltd. | ||
5 | * | ||
6 | * Loosely based on Arcom's 2.6.16.28. | ||
7 | * Maintained by Marc Zyngier <maz@misterjones.org> | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License version 2 as | ||
11 | * published by the Free Software Foundation. | ||
12 | */ | ||
13 | |||
14 | #include <linux/cpufreq.h> | ||
15 | #include <linux/interrupt.h> | ||
16 | #include <linux/irq.h> | ||
17 | #include <linux/pm.h> | ||
18 | #include <linux/gpio.h> | ||
19 | #include <linux/serial_8250.h> | ||
20 | #include <linux/dm9000.h> | ||
21 | #include <linux/mmc/host.h> | ||
22 | #include <linux/spi/spi.h> | ||
23 | #include <linux/mtd/mtd.h> | ||
24 | #include <linux/mtd/partitions.h> | ||
25 | #include <linux/mtd/physmap.h> | ||
26 | #include <linux/i2c.h> | ||
27 | #include <linux/i2c/pca953x.h> | ||
28 | |||
29 | #include <asm/mach-types.h> | ||
30 | #include <asm/mach/arch.h> | ||
31 | #include <asm/mach/map.h> | ||
32 | |||
33 | #include <plat/i2c.h> | ||
34 | |||
35 | #include <mach/pxa2xx-regs.h> | ||
36 | #include <mach/regs-uart.h> | ||
37 | #include <mach/ohci.h> | ||
38 | #include <mach/mmc.h> | ||
39 | #include <mach/pxa27x-udc.h> | ||
40 | #include <mach/udc.h> | ||
41 | #include <mach/pxafb.h> | ||
42 | #include <mach/pxa2xx_spi.h> | ||
43 | #include <mach/mfp-pxa27x.h> | ||
44 | #include <mach/pm.h> | ||
45 | #include <mach/audio.h> | ||
46 | #include <mach/arcom-pcmcia.h> | ||
47 | #include <mach/zeus.h> | ||
48 | |||
49 | #include "generic.h" | ||
50 | |||
51 | /* | ||
52 | * Interrupt handling | ||
53 | */ | ||
54 | |||
55 | static unsigned long zeus_irq_enabled_mask; | ||
56 | static const int zeus_isa_irqs[] = { 3, 4, 5, 6, 7, 10, 11, 12, }; | ||
57 | static const int zeus_isa_irq_map[] = { | ||
58 | 0, /* ISA irq #0, invalid */ | ||
59 | 0, /* ISA irq #1, invalid */ | ||
60 | 0, /* ISA irq #2, invalid */ | ||
61 | 1 << 0, /* ISA irq #3 */ | ||
62 | 1 << 1, /* ISA irq #4 */ | ||
63 | 1 << 2, /* ISA irq #5 */ | ||
64 | 1 << 3, /* ISA irq #6 */ | ||
65 | 1 << 4, /* ISA irq #7 */ | ||
66 | 0, /* ISA irq #8, invalid */ | ||
67 | 0, /* ISA irq #9, invalid */ | ||
68 | 1 << 5, /* ISA irq #10 */ | ||
69 | 1 << 6, /* ISA irq #11 */ | ||
70 | 1 << 7, /* ISA irq #12 */ | ||
71 | }; | ||
72 | |||
73 | static inline int zeus_irq_to_bitmask(unsigned int irq) | ||
74 | { | ||
75 | return zeus_isa_irq_map[irq - PXA_ISA_IRQ(0)]; | ||
76 | } | ||
77 | |||
78 | static inline int zeus_bit_to_irq(int bit) | ||
79 | { | ||
80 | return zeus_isa_irqs[bit] + PXA_ISA_IRQ(0); | ||
81 | } | ||
82 | |||
83 | static void zeus_ack_irq(unsigned int irq) | ||
84 | { | ||
85 | __raw_writew(zeus_irq_to_bitmask(irq), ZEUS_CPLD_ISA_IRQ); | ||
86 | } | ||
87 | |||
88 | static void zeus_mask_irq(unsigned int irq) | ||
89 | { | ||
90 | zeus_irq_enabled_mask &= ~(zeus_irq_to_bitmask(irq)); | ||
91 | } | ||
92 | |||
93 | static void zeus_unmask_irq(unsigned int irq) | ||
94 | { | ||
95 | zeus_irq_enabled_mask |= zeus_irq_to_bitmask(irq); | ||
96 | } | ||
97 | |||
98 | static inline unsigned long zeus_irq_pending(void) | ||
99 | { | ||
100 | return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask; | ||
101 | } | ||
102 | |||
103 | static void zeus_irq_handler(unsigned int irq, struct irq_desc *desc) | ||
104 | { | ||
105 | unsigned long pending; | ||
106 | |||
107 | pending = zeus_irq_pending(); | ||
108 | do { | ||
109 | /* we're in a chained irq handler, | ||
110 | * so ack the interrupt by hand */ | ||
111 | desc->chip->ack(gpio_to_irq(ZEUS_ISA_GPIO)); | ||
112 | |||
113 | if (likely(pending)) { | ||
114 | irq = zeus_bit_to_irq(__ffs(pending)); | ||
115 | generic_handle_irq(irq); | ||
116 | } | ||
117 | pending = zeus_irq_pending(); | ||
118 | } while (pending); | ||
119 | } | ||
120 | |||
121 | static struct irq_chip zeus_irq_chip = { | ||
122 | .name = "ISA", | ||
123 | .ack = zeus_ack_irq, | ||
124 | .mask = zeus_mask_irq, | ||
125 | .unmask = zeus_unmask_irq, | ||
126 | }; | ||
127 | |||
128 | static void __init zeus_init_irq(void) | ||
129 | { | ||
130 | int level; | ||
131 | int isa_irq; | ||
132 | |||
133 | pxa27x_init_irq(); | ||
134 | |||
135 | /* Peripheral IRQs. It would be nice to move those inside driver | ||
136 | configuration, but it is not supported at the moment. */ | ||
137 | set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING); | ||
138 | set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING); | ||
139 | set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING); | ||
140 | set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO), IRQ_TYPE_EDGE_FALLING); | ||
141 | set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO), IRQ_TYPE_EDGE_FALLING); | ||
142 | |||
143 | /* Setup ISA IRQs */ | ||
144 | for (level = 0; level < ARRAY_SIZE(zeus_isa_irqs); level++) { | ||
145 | isa_irq = zeus_bit_to_irq(level); | ||
146 | set_irq_chip(isa_irq, &zeus_irq_chip); | ||
147 | set_irq_handler(isa_irq, handle_edge_irq); | ||
148 | set_irq_flags(isa_irq, IRQF_VALID | IRQF_PROBE); | ||
149 | } | ||
150 | |||
151 | set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING); | ||
152 | set_irq_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler); | ||
153 | } | ||
154 | |||
155 | |||
156 | /* | ||
157 | * Platform devices | ||
158 | */ | ||
159 | |||
160 | /* Flash */ | ||
161 | static struct resource zeus_mtd_resources[] = { | ||
162 | [0] = { /* NOR Flash (up to 64MB) */ | ||
163 | .start = ZEUS_FLASH_PHYS, | ||
164 | .end = ZEUS_FLASH_PHYS + SZ_64M - 1, | ||
165 | .flags = IORESOURCE_MEM, | ||
166 | }, | ||
167 | [1] = { /* SRAM */ | ||
168 | .start = ZEUS_SRAM_PHYS, | ||
169 | .end = ZEUS_SRAM_PHYS + SZ_512K - 1, | ||
170 | .flags = IORESOURCE_MEM, | ||
171 | }, | ||
172 | }; | ||
173 | |||
174 | static struct physmap_flash_data zeus_flash_data[] = { | ||
175 | [0] = { | ||
176 | .width = 2, | ||
177 | .parts = NULL, | ||
178 | .nr_parts = 0, | ||
179 | }, | ||
180 | }; | ||
181 | |||
182 | static struct platform_device zeus_mtd_devices[] = { | ||
183 | [0] = { | ||
184 | .name = "physmap-flash", | ||
185 | .id = 0, | ||
186 | .dev = { | ||
187 | .platform_data = &zeus_flash_data[0], | ||
188 | }, | ||
189 | .resource = &zeus_mtd_resources[0], | ||
190 | .num_resources = 1, | ||
191 | }, | ||
192 | }; | ||
193 | |||
194 | /* Serial */ | ||
195 | static struct resource zeus_serial_resources[] = { | ||
196 | { | ||
197 | .start = 0x10000000, | ||
198 | .end = 0x1000000f, | ||
199 | .flags = IORESOURCE_MEM, | ||
200 | }, | ||
201 | { | ||
202 | .start = 0x10800000, | ||
203 | .end = 0x1080000f, | ||
204 | .flags = IORESOURCE_MEM, | ||
205 | }, | ||
206 | { | ||
207 | .start = 0x11000000, | ||
208 | .end = 0x1100000f, | ||
209 | .flags = IORESOURCE_MEM, | ||
210 | }, | ||
211 | { | ||
212 | .start = 0x40100000, | ||
213 | .end = 0x4010001f, | ||
214 | .flags = IORESOURCE_MEM, | ||
215 | }, | ||
216 | { | ||
217 | .start = 0x40200000, | ||
218 | .end = 0x4020001f, | ||
219 | .flags = IORESOURCE_MEM, | ||
220 | }, | ||
221 | { | ||
222 | .start = 0x40700000, | ||
223 | .end = 0x4070001f, | ||
224 | .flags = IORESOURCE_MEM, | ||
225 | }, | ||
226 | }; | ||
227 | |||
228 | static struct plat_serial8250_port serial_platform_data[] = { | ||
229 | /* External UARTs */ | ||
230 | /* FIXME: Shared IRQs on COM1-COM4 will not work properly on v1i1 hardware. */ | ||
231 | { /* COM1 */ | ||
232 | .mapbase = 0x10000000, | ||
233 | .irq = gpio_to_irq(ZEUS_UARTA_GPIO), | ||
234 | .irqflags = IRQF_TRIGGER_RISING, | ||
235 | .uartclk = 14745600, | ||
236 | .regshift = 1, | ||
237 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
238 | .iotype = UPIO_MEM, | ||
239 | }, | ||
240 | { /* COM2 */ | ||
241 | .mapbase = 0x10800000, | ||
242 | .irq = gpio_to_irq(ZEUS_UARTB_GPIO), | ||
243 | .irqflags = IRQF_TRIGGER_RISING, | ||
244 | .uartclk = 14745600, | ||
245 | .regshift = 1, | ||
246 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
247 | .iotype = UPIO_MEM, | ||
248 | }, | ||
249 | { /* COM3 */ | ||
250 | .mapbase = 0x11000000, | ||
251 | .irq = gpio_to_irq(ZEUS_UARTC_GPIO), | ||
252 | .irqflags = IRQF_TRIGGER_RISING, | ||
253 | .uartclk = 14745600, | ||
254 | .regshift = 1, | ||
255 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
256 | .iotype = UPIO_MEM, | ||
257 | }, | ||
258 | { /* COM4 */ | ||
259 | .mapbase = 0x11800000, | ||
260 | .irq = gpio_to_irq(ZEUS_UARTD_GPIO), | ||
261 | .irqflags = IRQF_TRIGGER_RISING, | ||
262 | .uartclk = 14745600, | ||
263 | .regshift = 1, | ||
264 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
265 | .iotype = UPIO_MEM, | ||
266 | }, | ||
267 | /* Internal UARTs */ | ||
268 | { /* FFUART */ | ||
269 | .membase = (void *)&FFUART, | ||
270 | .mapbase = __PREG(FFUART), | ||
271 | .irq = IRQ_FFUART, | ||
272 | .uartclk = 921600 * 16, | ||
273 | .regshift = 2, | ||
274 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
275 | .iotype = UPIO_MEM, | ||
276 | }, | ||
277 | { /* BTUART */ | ||
278 | .membase = (void *)&BTUART, | ||
279 | .mapbase = __PREG(BTUART), | ||
280 | .irq = IRQ_BTUART, | ||
281 | .uartclk = 921600 * 16, | ||
282 | .regshift = 2, | ||
283 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
284 | .iotype = UPIO_MEM, | ||
285 | }, | ||
286 | { /* STUART */ | ||
287 | .membase = (void *)&STUART, | ||
288 | .mapbase = __PREG(STUART), | ||
289 | .irq = IRQ_STUART, | ||
290 | .uartclk = 921600 * 16, | ||
291 | .regshift = 2, | ||
292 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | ||
293 | .iotype = UPIO_MEM, | ||
294 | }, | ||
295 | { }, | ||
296 | }; | ||
297 | |||
298 | static struct platform_device zeus_serial_device = { | ||
299 | .name = "serial8250", | ||
300 | .id = PLAT8250_DEV_PLATFORM, | ||
301 | .dev = { | ||
302 | .platform_data = serial_platform_data, | ||
303 | }, | ||
304 | .num_resources = ARRAY_SIZE(zeus_serial_resources), | ||
305 | .resource = zeus_serial_resources, | ||
306 | }; | ||
307 | |||
308 | /* Ethernet */ | ||
309 | static struct resource zeus_dm9k0_resource[] = { | ||
310 | [0] = { | ||
311 | .start = ZEUS_ETH0_PHYS, | ||
312 | .end = ZEUS_ETH0_PHYS + 1, | ||
313 | .flags = IORESOURCE_MEM | ||
314 | }, | ||
315 | [1] = { | ||
316 | .start = ZEUS_ETH0_PHYS + 2, | ||
317 | .end = ZEUS_ETH0_PHYS + 3, | ||
318 | .flags = IORESOURCE_MEM | ||
319 | }, | ||
320 | [2] = { | ||
321 | .start = gpio_to_irq(ZEUS_ETH0_GPIO), | ||
322 | .end = gpio_to_irq(ZEUS_ETH0_GPIO), | ||
323 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, | ||
324 | }, | ||
325 | }; | ||
326 | |||
327 | static struct resource zeus_dm9k1_resource[] = { | ||
328 | [0] = { | ||
329 | .start = ZEUS_ETH1_PHYS, | ||
330 | .end = ZEUS_ETH1_PHYS + 1, | ||
331 | .flags = IORESOURCE_MEM | ||
332 | }, | ||
333 | [1] = { | ||
334 | .start = ZEUS_ETH1_PHYS + 2, | ||
335 | .end = ZEUS_ETH1_PHYS + 3, | ||
336 | .flags = IORESOURCE_MEM, | ||
337 | }, | ||
338 | [2] = { | ||
339 | .start = gpio_to_irq(ZEUS_ETH1_GPIO), | ||
340 | .end = gpio_to_irq(ZEUS_ETH1_GPIO), | ||
341 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, | ||
342 | }, | ||
343 | }; | ||
344 | |||
345 | static struct dm9000_plat_data zeus_dm9k_platdata = { | ||
346 | .flags = DM9000_PLATF_16BITONLY, | ||
347 | }; | ||
348 | |||
349 | static struct platform_device zeus_dm9k0_device = { | ||
350 | .name = "dm9000", | ||
351 | .id = 0, | ||
352 | .num_resources = ARRAY_SIZE(zeus_dm9k0_resource), | ||
353 | .resource = zeus_dm9k0_resource, | ||
354 | .dev = { | ||
355 | .platform_data = &zeus_dm9k_platdata, | ||
356 | } | ||
357 | }; | ||
358 | |||
359 | static struct platform_device zeus_dm9k1_device = { | ||
360 | .name = "dm9000", | ||
361 | .id = 1, | ||
362 | .num_resources = ARRAY_SIZE(zeus_dm9k1_resource), | ||
363 | .resource = zeus_dm9k1_resource, | ||
364 | .dev = { | ||
365 | .platform_data = &zeus_dm9k_platdata, | ||
366 | } | ||
367 | }; | ||
368 | |||
369 | /* External SRAM */ | ||
370 | static struct resource zeus_sram_resource = { | ||
371 | .start = ZEUS_SRAM_PHYS, | ||
372 | .end = ZEUS_SRAM_PHYS + ZEUS_SRAM_SIZE * 2 - 1, | ||
373 | .flags = IORESOURCE_MEM, | ||
374 | }; | ||
375 | |||
376 | static struct platform_device zeus_sram_device = { | ||
377 | .name = "pxa2xx-8bit-sram", | ||
378 | .id = 0, | ||
379 | .num_resources = 1, | ||
380 | .resource = &zeus_sram_resource, | ||
381 | }; | ||
382 | |||
383 | /* SPI interface on SSP3 */ | ||
384 | static struct pxa2xx_spi_master pxa2xx_spi_ssp3_master_info = { | ||
385 | .num_chipselect = 1, | ||
386 | .enable_dma = 1, | ||
387 | }; | ||
388 | |||
389 | static struct platform_device pxa2xx_spi_ssp3_device = { | ||
390 | .name = "pxa2xx-spi", | ||
391 | .id = 3, | ||
392 | .dev = { | ||
393 | .platform_data = &pxa2xx_spi_ssp3_master_info, | ||
394 | }, | ||
395 | }; | ||
396 | |||
397 | /* Leds */ | ||
398 | static struct gpio_led zeus_leds[] = { | ||
399 | [0] = { | ||
400 | .name = "zeus:yellow:1", | ||
401 | .default_trigger = "heartbeat", | ||
402 | .gpio = ZEUS_EXT0_GPIO(3), | ||
403 | .active_low = 1, | ||
404 | }, | ||
405 | [1] = { | ||
406 | .name = "zeus:yellow:2", | ||
407 | .default_trigger = "default-on", | ||
408 | .gpio = ZEUS_EXT0_GPIO(4), | ||
409 | .active_low = 1, | ||
410 | }, | ||
411 | [2] = { | ||
412 | .name = "zeus:yellow:3", | ||
413 | .default_trigger = "default-on", | ||
414 | .gpio = ZEUS_EXT0_GPIO(5), | ||
415 | .active_low = 1, | ||
416 | }, | ||
417 | }; | ||
418 | |||
419 | static struct gpio_led_platform_data zeus_leds_info = { | ||
420 | .leds = zeus_leds, | ||
421 | .num_leds = ARRAY_SIZE(zeus_leds), | ||
422 | }; | ||
423 | |||
424 | static struct platform_device zeus_leds_device = { | ||
425 | .name = "leds-gpio", | ||
426 | .id = -1, | ||
427 | .dev = { | ||
428 | .platform_data = &zeus_leds_info, | ||
429 | }, | ||
430 | }; | ||
431 | |||
432 | static void zeus_cf_reset(int state) | ||
433 | { | ||
434 | u16 cpld_state = __raw_readw(ZEUS_CPLD_CONTROL); | ||
435 | |||
436 | if (state) | ||
437 | cpld_state |= ZEUS_CPLD_CONTROL_CF_RST; | ||
438 | else | ||
439 | cpld_state &= ~ZEUS_CPLD_CONTROL_CF_RST; | ||
440 | |||
441 | __raw_writew(cpld_state, ZEUS_CPLD_CONTROL); | ||
442 | } | ||
443 | |||
444 | static struct arcom_pcmcia_pdata zeus_pcmcia_info = { | ||
445 | .cd_gpio = ZEUS_CF_CD_GPIO, | ||
446 | .rdy_gpio = ZEUS_CF_RDY_GPIO, | ||
447 | .pwr_gpio = ZEUS_CF_PWEN_GPIO, | ||
448 | .reset = zeus_cf_reset, | ||
449 | }; | ||
450 | |||
451 | static struct platform_device zeus_pcmcia_device = { | ||
452 | .name = "zeus-pcmcia", | ||
453 | .id = -1, | ||
454 | .dev = { | ||
455 | .platform_data = &zeus_pcmcia_info, | ||
456 | }, | ||
457 | }; | ||
458 | |||
459 | static struct platform_device *zeus_devices[] __initdata = { | ||
460 | &zeus_serial_device, | ||
461 | &zeus_mtd_devices[0], | ||
462 | &zeus_dm9k0_device, | ||
463 | &zeus_dm9k1_device, | ||
464 | &zeus_sram_device, | ||
465 | &pxa2xx_spi_ssp3_device, | ||
466 | &zeus_leds_device, | ||
467 | &zeus_pcmcia_device, | ||
468 | }; | ||
469 | |||
470 | /* AC'97 */ | ||
471 | static pxa2xx_audio_ops_t zeus_ac97_info = { | ||
472 | .reset_gpio = 95, | ||
473 | }; | ||
474 | |||
475 | |||
476 | /* | ||
477 | * USB host | ||
478 | */ | ||
479 | |||
480 | static int zeus_ohci_init(struct device *dev) | ||
481 | { | ||
482 | int err; | ||
483 | |||
484 | /* Switch on port 2. */ | ||
485 | if ((err = gpio_request(ZEUS_USB2_PWREN_GPIO, "USB2_PWREN"))) { | ||
486 | dev_err(dev, "Can't request USB2_PWREN\n"); | ||
487 | return err; | ||
488 | } | ||
489 | |||
490 | if ((err = gpio_direction_output(ZEUS_USB2_PWREN_GPIO, 1))) { | ||
491 | gpio_free(ZEUS_USB2_PWREN_GPIO); | ||
492 | dev_err(dev, "Can't enable USB2_PWREN\n"); | ||
493 | return err; | ||
494 | } | ||
495 | |||
496 | /* Port 2 is shared between host and client interface. */ | ||
497 | UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE; | ||
498 | |||
499 | return 0; | ||
500 | } | ||
501 | |||
502 | static void zeus_ohci_exit(struct device *dev) | ||
503 | { | ||
504 | /* Power-off port 2 */ | ||
505 | gpio_direction_output(ZEUS_USB2_PWREN_GPIO, 0); | ||
506 | gpio_free(ZEUS_USB2_PWREN_GPIO); | ||
507 | } | ||
508 | |||
509 | static struct pxaohci_platform_data zeus_ohci_platform_data = { | ||
510 | .port_mode = PMM_NPS_MODE, | ||
511 | .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, | ||
512 | .init = zeus_ohci_init, | ||
513 | .exit = zeus_ohci_exit, | ||
514 | }; | ||
515 | |||
516 | /* | ||
517 | * Flat Panel | ||
518 | */ | ||
519 | |||
520 | static void zeus_lcd_power(int on, struct fb_var_screeninfo *si) | ||
521 | { | ||
522 | gpio_set_value(ZEUS_LCD_EN_GPIO, on); | ||
523 | } | ||
524 | |||
525 | static void zeus_backlight_power(int on) | ||
526 | { | ||
527 | gpio_set_value(ZEUS_BKLEN_GPIO, on); | ||
528 | } | ||
529 | |||
530 | static int zeus_setup_fb_gpios(void) | ||
531 | { | ||
532 | int err; | ||
533 | |||
534 | if ((err = gpio_request(ZEUS_LCD_EN_GPIO, "LCD_EN"))) | ||
535 | goto out_err; | ||
536 | |||
537 | if ((err = gpio_direction_output(ZEUS_LCD_EN_GPIO, 0))) | ||
538 | goto out_err_lcd; | ||
539 | |||
540 | if ((err = gpio_request(ZEUS_BKLEN_GPIO, "BKLEN"))) | ||
541 | goto out_err_lcd; | ||
542 | |||
543 | if ((err = gpio_direction_output(ZEUS_BKLEN_GPIO, 0))) | ||
544 | goto out_err_bkl; | ||
545 | |||
546 | return 0; | ||
547 | |||
548 | out_err_bkl: | ||
549 | gpio_free(ZEUS_BKLEN_GPIO); | ||
550 | out_err_lcd: | ||
551 | gpio_free(ZEUS_LCD_EN_GPIO); | ||
552 | out_err: | ||
553 | return err; | ||
554 | } | ||
555 | |||
556 | static struct pxafb_mode_info zeus_fb_mode_info[] = { | ||
557 | { | ||
558 | .pixclock = 39722, | ||
559 | |||
560 | .xres = 640, | ||
561 | .yres = 480, | ||
562 | |||
563 | .bpp = 16, | ||
564 | |||
565 | .hsync_len = 63, | ||
566 | .left_margin = 16, | ||
567 | .right_margin = 81, | ||
568 | |||
569 | .vsync_len = 2, | ||
570 | .upper_margin = 12, | ||
571 | .lower_margin = 31, | ||
572 | |||
573 | .sync = 0, | ||
574 | }, | ||
575 | }; | ||
576 | |||
577 | static struct pxafb_mach_info zeus_fb_info = { | ||
578 | .modes = zeus_fb_mode_info, | ||
579 | .num_modes = 1, | ||
580 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, | ||
581 | .pxafb_lcd_power = zeus_lcd_power, | ||
582 | .pxafb_backlight_power = zeus_backlight_power, | ||
583 | }; | ||
584 | |||
585 | /* | ||
586 | * MMC/SD Device | ||
587 | * | ||
588 | * The card detect interrupt isn't debounced so we delay it by 250ms | ||
589 | * to give the card a chance to fully insert/eject. | ||
590 | */ | ||
591 | |||
592 | static struct pxamci_platform_data zeus_mci_platform_data = { | ||
593 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, | ||
594 | .detect_delay = HZ/4, | ||
595 | .gpio_card_detect = ZEUS_MMC_CD_GPIO, | ||
596 | .gpio_card_ro = ZEUS_MMC_WP_GPIO, | ||
597 | .gpio_card_ro_invert = 1, | ||
598 | .gpio_power = -1 | ||
599 | }; | ||
600 | |||
601 | /* | ||
602 | * USB Device Controller | ||
603 | */ | ||
604 | static void zeus_udc_command(int cmd) | ||
605 | { | ||
606 | switch (cmd) { | ||
607 | case PXA2XX_UDC_CMD_DISCONNECT: | ||
608 | pr_info("zeus: disconnecting USB client\n"); | ||
609 | UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE; | ||
610 | break; | ||
611 | |||
612 | case PXA2XX_UDC_CMD_CONNECT: | ||
613 | pr_info("zeus: connecting USB client\n"); | ||
614 | UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE; | ||
615 | break; | ||
616 | } | ||
617 | } | ||
618 | |||
619 | static struct pxa2xx_udc_mach_info zeus_udc_info = { | ||
620 | .udc_command = zeus_udc_command, | ||
621 | }; | ||
622 | |||
623 | static void zeus_power_off(void) | ||
624 | { | ||
625 | local_irq_disable(); | ||
626 | pxa27x_cpu_suspend(PWRMODE_DEEPSLEEP); | ||
627 | } | ||
628 | |||
629 | int zeus_get_pcb_info(struct i2c_client *client, unsigned gpio, | ||
630 | unsigned ngpio, void *context) | ||
631 | { | ||
632 | int i; | ||
633 | u8 pcb_info = 0; | ||
634 | |||
635 | for (i = 0; i < 8; i++) { | ||
636 | int pcb_bit = gpio + i + 8; | ||
637 | |||
638 | if (gpio_request(pcb_bit, "pcb info")) { | ||
639 | dev_err(&client->dev, "Can't request pcb info %d\n", i); | ||
640 | continue; | ||
641 | } | ||
642 | |||
643 | if (gpio_direction_input(pcb_bit)) { | ||
644 | dev_err(&client->dev, "Can't read pcb info %d\n", i); | ||
645 | gpio_free(pcb_bit); | ||
646 | continue; | ||
647 | } | ||
648 | |||
649 | pcb_info |= !!gpio_get_value(pcb_bit) << i; | ||
650 | |||
651 | gpio_free(pcb_bit); | ||
652 | } | ||
653 | |||
654 | dev_info(&client->dev, "Zeus PCB version %d issue %d\n", | ||
655 | pcb_info >> 4, pcb_info & 0xf); | ||
656 | |||
657 | return 0; | ||
658 | } | ||
659 | |||
660 | static struct pca953x_platform_data zeus_pca953x_pdata[] = { | ||
661 | [0] = { .gpio_base = ZEUS_EXT0_GPIO_BASE, }, | ||
662 | [1] = { | ||
663 | .gpio_base = ZEUS_EXT1_GPIO_BASE, | ||
664 | .setup = zeus_get_pcb_info, | ||
665 | }, | ||
666 | [2] = { .gpio_base = ZEUS_USER_GPIO_BASE, }, | ||
667 | }; | ||
668 | |||
669 | static struct i2c_board_info __initdata zeus_i2c_devices[] = { | ||
670 | { | ||
671 | I2C_BOARD_INFO("pca9535", 0x21), | ||
672 | .platform_data = &zeus_pca953x_pdata[0], | ||
673 | }, | ||
674 | { | ||
675 | I2C_BOARD_INFO("pca9535", 0x22), | ||
676 | .platform_data = &zeus_pca953x_pdata[1], | ||
677 | }, | ||
678 | { | ||
679 | I2C_BOARD_INFO("pca9535", 0x20), | ||
680 | .platform_data = &zeus_pca953x_pdata[2], | ||
681 | .irq = gpio_to_irq(ZEUS_EXTGPIO_GPIO), | ||
682 | }, | ||
683 | { I2C_BOARD_INFO("lm75a", 0x48) }, | ||
684 | { I2C_BOARD_INFO("24c01", 0x50) }, | ||
685 | { I2C_BOARD_INFO("isl1208", 0x6f) }, | ||
686 | }; | ||
687 | |||
688 | static mfp_cfg_t zeus_pin_config[] __initdata = { | ||
689 | GPIO15_nCS_1, | ||
690 | GPIO78_nCS_2, | ||
691 | GPIO80_nCS_4, | ||
692 | GPIO33_nCS_5, | ||
693 | |||
694 | GPIO22_GPIO, | ||
695 | GPIO32_MMC_CLK, | ||
696 | GPIO92_MMC_DAT_0, | ||
697 | GPIO109_MMC_DAT_1, | ||
698 | GPIO110_MMC_DAT_2, | ||
699 | GPIO111_MMC_DAT_3, | ||
700 | GPIO112_MMC_CMD, | ||
701 | |||
702 | GPIO88_USBH1_PWR, | ||
703 | GPIO89_USBH1_PEN, | ||
704 | GPIO119_USBH2_PWR, | ||
705 | GPIO120_USBH2_PEN, | ||
706 | |||
707 | GPIO86_LCD_LDD_16, | ||
708 | GPIO87_LCD_LDD_17, | ||
709 | |||
710 | GPIO102_GPIO, | ||
711 | GPIO104_CIF_DD_2, | ||
712 | GPIO105_CIF_DD_1, | ||
713 | |||
714 | GPIO48_nPOE, | ||
715 | GPIO49_nPWE, | ||
716 | GPIO50_nPIOR, | ||
717 | GPIO51_nPIOW, | ||
718 | GPIO85_nPCE_1, | ||
719 | GPIO54_nPCE_2, | ||
720 | GPIO79_PSKTSEL, | ||
721 | GPIO55_nPREG, | ||
722 | GPIO56_nPWAIT, | ||
723 | GPIO57_nIOIS16, | ||
724 | GPIO36_GPIO, /* CF CD */ | ||
725 | GPIO97_GPIO, /* CF PWREN */ | ||
726 | GPIO99_GPIO, /* CF RDY */ | ||
727 | }; | ||
728 | |||
729 | static void __init zeus_init(void) | ||
730 | { | ||
731 | u16 dm9000_msc = 0xe279; | ||
732 | |||
733 | system_rev = __raw_readw(ZEUS_CPLD_VERSION); | ||
734 | pr_info("Zeus CPLD V%dI%d\n", (system_rev & 0xf0) >> 4, (system_rev & 0x0f)); | ||
735 | |||
736 | /* Fix timings for dm9000s (CS1/CS2)*/ | ||
737 | MSC0 = (MSC0 & 0xffff) | (dm9000_msc << 16); | ||
738 | MSC1 = (MSC1 & 0xffff0000) | dm9000_msc; | ||
739 | |||
740 | pm_power_off = zeus_power_off; | ||
741 | |||
742 | pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config)); | ||
743 | |||
744 | platform_add_devices(zeus_devices, ARRAY_SIZE(zeus_devices)); | ||
745 | |||
746 | pxa_set_ohci_info(&zeus_ohci_platform_data); | ||
747 | |||
748 | if (zeus_setup_fb_gpios()) | ||
749 | pr_err("Failed to setup fb gpios\n"); | ||
750 | else | ||
751 | set_pxa_fb_info(&zeus_fb_info); | ||
752 | |||
753 | pxa_set_mci_info(&zeus_mci_platform_data); | ||
754 | pxa_set_udc_info(&zeus_udc_info); | ||
755 | pxa_set_ac97_info(&zeus_ac97_info); | ||
756 | pxa_set_i2c_info(NULL); | ||
757 | i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices)); | ||
758 | } | ||
759 | |||
760 | static struct map_desc zeus_io_desc[] __initdata = { | ||
761 | { | ||
762 | .virtual = ZEUS_CPLD_VERSION, | ||
763 | .pfn = __phys_to_pfn(ZEUS_CPLD_VERSION_PHYS), | ||
764 | .length = 0x1000, | ||
765 | .type = MT_DEVICE, | ||
766 | }, | ||
767 | { | ||
768 | .virtual = ZEUS_CPLD_ISA_IRQ, | ||
769 | .pfn = __phys_to_pfn(ZEUS_CPLD_ISA_IRQ_PHYS), | ||
770 | .length = 0x1000, | ||
771 | .type = MT_DEVICE, | ||
772 | }, | ||
773 | { | ||
774 | .virtual = ZEUS_CPLD_CONTROL, | ||
775 | .pfn = __phys_to_pfn(ZEUS_CPLD_CONTROL_PHYS), | ||
776 | .length = 0x1000, | ||
777 | .type = MT_DEVICE, | ||
778 | }, | ||
779 | { | ||
780 | .virtual = ZEUS_CPLD_EXTWDOG, | ||
781 | .pfn = __phys_to_pfn(ZEUS_CPLD_EXTWDOG_PHYS), | ||
782 | .length = 0x1000, | ||
783 | .type = MT_DEVICE, | ||
784 | }, | ||
785 | { | ||
786 | .virtual = ZEUS_PC104IO, | ||
787 | .pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS), | ||
788 | .length = 0x00800000, | ||
789 | .type = MT_DEVICE, | ||
790 | }, | ||
791 | }; | ||
792 | |||
793 | static void __init zeus_map_io(void) | ||
794 | { | ||
795 | pxa_map_io(); | ||
796 | |||
797 | iotable_init(zeus_io_desc, ARRAY_SIZE(zeus_io_desc)); | ||
798 | |||
799 | /* Clear PSPR to ensure a full restart on wake-up. */ | ||
800 | PMCR = PSPR = 0; | ||
801 | |||
802 | /* enable internal 32.768Khz oscillator (ignore OSCC_OOK) */ | ||
803 | OSCC |= OSCC_OON; | ||
804 | |||
805 | /* Some clock cycles later (from OSCC_ON), programme PCFR (OPDE...). | ||
806 | * float chip selects and PCMCIA */ | ||
807 | PCFR = PCFR_OPDE | PCFR_DC_EN | PCFR_FS | PCFR_FP; | ||
808 | } | ||
809 | |||
810 | MACHINE_START(ARCOM_ZEUS, "Arcom ZEUS") | ||
811 | /* Maintainer: Marc Zyngier <maz@misterjones.org> */ | ||
812 | .phys_io = 0x40000000, | ||
813 | .io_pg_offst = ((io_p2v(0x40000000) >> 18) & 0xfffc), | ||
814 | .boot_params = 0xa0000100, | ||
815 | .map_io = zeus_map_io, | ||
816 | .init_irq = zeus_init_irq, | ||
817 | .timer = &pxa_timer, | ||
818 | .init_machine = zeus_init, | ||
819 | MACHINE_END | ||
820 | |||