]>
Commit | Line | Data |
---|---|---|
2e927b76 RS |
1 | /* |
2 | * arch/arm/mach-pxa/pcm990-baseboard.c | |
3 | * Support for the Phytec phyCORE-PXA270 Development Platform (PCM-990). | |
4 | * | |
5 | * Refer | |
6 | * http://www.phytec.com/products/rdk/ARM-XScale/phyCORE-XScale-PXA270.html | |
7 | * for additional hardware info | |
8 | * | |
9 | * Author: Juergen Kilb | |
10 | * Created: April 05, 2005 | |
11 | * Copyright: Phytec Messtechnik GmbH | |
12 | * e-Mail: armlinux@phytec.de | |
13 | * | |
14 | * based on Intel Mainstone Board | |
15 | * | |
16 | * Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de) | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License version 2 as | |
20 | * published by the Free Software Foundation. | |
21 | */ | |
22 | ||
23 | #include <linux/irq.h> | |
24 | #include <linux/platform_device.h> | |
25 | #include <linux/ide.h> | |
58762e77 GL |
26 | #include <linux/i2c.h> |
27 | ||
28 | #include <media/soc_camera.h> | |
29 | ||
30 | #include <asm/gpio.h> | |
31 | #include <asm/arch/i2c.h> | |
32 | #include <asm/arch/camera.h> | |
2e927b76 RS |
33 | #include <asm/mach/map.h> |
34 | #include <asm/arch/pxa-regs.h> | |
a683b14d | 35 | #include <asm/arch/pxa2xx-gpio.h> |
2e927b76 RS |
36 | #include <asm/arch/mmc.h> |
37 | #include <asm/arch/ohci.h> | |
38 | #include <asm/arch/pcm990_baseboard.h> | |
39 | ||
40 | /* | |
41 | * The PCM-990 development baseboard uses PCM-027's hardeware in the | |
42 | * following way: | |
43 | * | |
44 | * - LCD support is in use | |
45 | * - GPIO16 is output for back light on/off with PWM | |
46 | * - GPIO58 ... GPIO73 are outputs for display data | |
47 | * - GPIO74 is output output for LCDFCLK | |
48 | * - GPIO75 is output for LCDLCLK | |
49 | * - GPIO76 is output for LCDPCLK | |
50 | * - GPIO77 is output for LCDBIAS | |
51 | * - MMC support is in use | |
52 | * - GPIO32 is output for MMCCLK | |
53 | * - GPIO92 is MMDAT0 | |
54 | * - GPIO109 is MMDAT1 | |
55 | * - GPIO110 is MMCS0 | |
56 | * - GPIO111 is MMCS1 | |
57 | * - GPIO112 is MMCMD | |
58 | * - IDE/CF card is in use | |
59 | * - GPIO48 is output /POE | |
60 | * - GPIO49 is output /PWE | |
61 | * - GPIO50 is output /PIOR | |
62 | * - GPIO51 is output /PIOW | |
63 | * - GPIO54 is output /PCE2 | |
64 | * - GPIO55 is output /PREG | |
65 | * - GPIO56 is input /PWAIT | |
66 | * - GPIO57 is output /PIOS16 | |
67 | * - GPIO79 is output PSKTSEL | |
68 | * - GPIO85 is output /PCE1 | |
69 | * - FFUART is in use | |
70 | * - GPIO34 is input FFRXD | |
71 | * - GPIO35 is input FFCTS | |
72 | * - GPIO36 is input FFDCD | |
73 | * - GPIO37 is input FFDSR | |
74 | * - GPIO38 is input FFRI | |
75 | * - GPIO39 is output FFTXD | |
76 | * - GPIO40 is output FFDTR | |
77 | * - GPIO41 is output FFRTS | |
78 | * - BTUART is in use | |
79 | * - GPIO42 is input BTRXD | |
80 | * - GPIO43 is output BTTXD | |
81 | * - GPIO44 is input BTCTS | |
82 | * - GPIO45 is output BTRTS | |
83 | * - IRUART is in use | |
84 | * - GPIO46 is input STDRXD | |
85 | * - GPIO47 is output STDTXD | |
86 | * - AC97 is in use*) | |
87 | * - GPIO28 is input AC97CLK | |
88 | * - GPIO29 is input AC97DatIn | |
89 | * - GPIO30 is output AC97DatO | |
90 | * - GPIO31 is output AC97SYNC | |
91 | * - GPIO113 is output AC97_RESET | |
92 | * - SSP is in use | |
93 | * - GPIO23 is output SSPSCLK | |
94 | * - GPIO24 is output chip select to Max7301 | |
95 | * - GPIO25 is output SSPTXD | |
96 | * - GPIO26 is input SSPRXD | |
97 | * - GPIO27 is input for Max7301 IRQ | |
98 | * - GPIO53 is input SSPSYSCLK | |
99 | * - SSP3 is in use | |
100 | * - GPIO81 is output SSPTXD3 | |
101 | * - GPIO82 is input SSPRXD3 | |
102 | * - GPIO83 is output SSPSFRM | |
103 | * - GPIO84 is output SSPCLK3 | |
104 | * | |
105 | * Otherwise claimed GPIOs: | |
106 | * GPIO1 -> IRQ from user switch | |
107 | * GPIO9 -> IRQ from power management | |
108 | * GPIO10 -> IRQ from WML9712 AC97 controller | |
109 | * GPIO11 -> IRQ from IDE controller | |
110 | * GPIO12 -> IRQ from CF controller | |
111 | * GPIO13 -> IRQ from CF controller | |
112 | * GPIO14 -> GPIO free | |
113 | * GPIO15 -> /CS1 selects baseboard's Control CPLD (U7, 16 bit wide data path) | |
114 | * GPIO19 -> GPIO free | |
115 | * GPIO20 -> /SDCS2 | |
116 | * GPIO21 -> /CS3 PC card socket select | |
117 | * GPIO33 -> /CS5 network controller select | |
118 | * GPIO78 -> /CS2 (16 bit wide data path) | |
119 | * GPIO80 -> /CS4 (16 bit wide data path) | |
120 | * GPIO86 -> GPIO free | |
121 | * GPIO87 -> GPIO free | |
122 | * GPIO90 -> LED0 on CPU module | |
123 | * GPIO91 -> LED1 on CPI module | |
124 | * GPIO117 -> SCL | |
125 | * GPIO118 -> SDA | |
126 | */ | |
127 | ||
128 | static unsigned long pcm990_irq_enabled; | |
129 | ||
130 | static void pcm990_mask_ack_irq(unsigned int irq) | |
131 | { | |
132 | int pcm990_irq = (irq - PCM027_IRQ(0)); | |
133 | PCM990_INTMSKENA = (pcm990_irq_enabled &= ~(1 << pcm990_irq)); | |
134 | } | |
135 | ||
136 | static void pcm990_unmask_irq(unsigned int irq) | |
137 | { | |
138 | int pcm990_irq = (irq - PCM027_IRQ(0)); | |
139 | /* the irq can be acknowledged only if deasserted, so it's done here */ | |
140 | PCM990_INTSETCLR |= 1 << pcm990_irq; | |
141 | PCM990_INTMSKENA = (pcm990_irq_enabled |= (1 << pcm990_irq)); | |
142 | } | |
143 | ||
144 | static struct irq_chip pcm990_irq_chip = { | |
145 | .mask_ack = pcm990_mask_ack_irq, | |
146 | .unmask = pcm990_unmask_irq, | |
147 | }; | |
148 | ||
149 | static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc) | |
150 | { | |
151 | unsigned long pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled; | |
152 | ||
153 | do { | |
154 | GEDR(PCM990_CTRL_INT_IRQ_GPIO) = | |
155 | GPIO_bit(PCM990_CTRL_INT_IRQ_GPIO); | |
156 | if (likely(pending)) { | |
157 | irq = PCM027_IRQ(0) + __ffs(pending); | |
158 | desc = irq_desc + irq; | |
159 | desc_handle_irq(irq, desc); | |
160 | } | |
161 | pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled; | |
162 | } while (pending); | |
163 | } | |
164 | ||
165 | static void __init pcm990_init_irq(void) | |
166 | { | |
167 | int irq; | |
168 | ||
169 | /* setup extra PCM990 irqs */ | |
170 | for (irq = PCM027_IRQ(0); irq <= PCM027_IRQ(3); irq++) { | |
171 | set_irq_chip(irq, &pcm990_irq_chip); | |
172 | set_irq_handler(irq, handle_level_irq); | |
173 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | |
174 | } | |
175 | ||
176 | PCM990_INTMSKENA = 0x00; /* disable all Interrupts */ | |
177 | PCM990_INTSETCLR = 0xFF; | |
178 | ||
179 | set_irq_chained_handler(PCM990_CTRL_INT_IRQ, pcm990_irq_handler); | |
180 | set_irq_type(PCM990_CTRL_INT_IRQ, PCM990_CTRL_INT_IRQ_EDGE); | |
181 | } | |
182 | ||
183 | static int pcm990_mci_init(struct device *dev, irq_handler_t mci_detect_int, | |
184 | void *data) | |
185 | { | |
186 | int err; | |
187 | ||
188 | /* | |
189 | * enable GPIO for PXA27x MMC controller | |
190 | */ | |
191 | pxa_gpio_mode(GPIO32_MMCCLK_MD); | |
192 | pxa_gpio_mode(GPIO112_MMCCMD_MD); | |
193 | pxa_gpio_mode(GPIO92_MMCDAT0_MD); | |
194 | pxa_gpio_mode(GPIO109_MMCDAT1_MD); | |
195 | pxa_gpio_mode(GPIO110_MMCDAT2_MD); | |
196 | pxa_gpio_mode(GPIO111_MMCDAT3_MD); | |
197 | ||
198 | err = request_irq(PCM027_MMCDET_IRQ, mci_detect_int, IRQF_DISABLED, | |
199 | "MMC card detect", data); | |
200 | if (err) | |
201 | printk(KERN_ERR "pcm990_mci_init: MMC/SD: can't request MMC " | |
202 | "card detect IRQ\n"); | |
203 | ||
204 | return err; | |
205 | } | |
206 | ||
207 | static void pcm990_mci_setpower(struct device *dev, unsigned int vdd) | |
208 | { | |
209 | struct pxamci_platform_data *p_d = dev->platform_data; | |
210 | ||
211 | if ((1 << vdd) & p_d->ocr_mask) | |
212 | __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5) = | |
213 | PCM990_CTRL_MMC2PWR; | |
214 | else | |
215 | __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5) = | |
216 | ~PCM990_CTRL_MMC2PWR; | |
217 | } | |
218 | ||
219 | static void pcm990_mci_exit(struct device *dev, void *data) | |
220 | { | |
221 | free_irq(PCM027_MMCDET_IRQ, data); | |
222 | } | |
223 | ||
224 | #define MSECS_PER_JIFFY (1000/HZ) | |
225 | ||
226 | static struct pxamci_platform_data pcm990_mci_platform_data = { | |
227 | .detect_delay = 250 / MSECS_PER_JIFFY, | |
228 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, | |
229 | .init = pcm990_mci_init, | |
230 | .setpower = pcm990_mci_setpower, | |
231 | .exit = pcm990_mci_exit, | |
232 | }; | |
233 | ||
234 | /* | |
235 | * init OHCI hardware to work with | |
236 | * | |
237 | * Note: Only USB port 1 (host only) is connected | |
238 | * | |
239 | * GPIO88 (USBHPWR#1): overcurrent in, overcurrent when low | |
240 | * GPIO89 (USBHPEN#1): power-on out, on when low | |
241 | */ | |
242 | static int pcm990_ohci_init(struct device *dev) | |
243 | { | |
244 | pxa_gpio_mode(PCM990_USB_OVERCURRENT); | |
245 | pxa_gpio_mode(PCM990_USB_PWR_EN); | |
246 | /* | |
247 | * disable USB port 2 and 3 | |
248 | * power sense is active low | |
249 | */ | |
250 | UHCHR = ((UHCHR) | UHCHR_PCPL | UHCHR_PSPL | UHCHR_SSEP2 | | |
251 | UHCHR_SSEP3) & ~(UHCHR_SSEP1 | UHCHR_SSE); | |
252 | /* | |
253 | * wait 10ms after Power on | |
254 | * overcurrent per port | |
255 | * power switch per port | |
256 | */ | |
257 | UHCRHDA = (5<<24) | (1<<11) | (1<<8); /* FIXME: Required? */ | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
262 | static struct pxaohci_platform_data pcm990_ohci_platform_data = { | |
263 | .port_mode = PMM_PERPORT_MODE, | |
264 | .init = pcm990_ohci_init, | |
265 | .exit = NULL, | |
266 | }; | |
267 | ||
58762e77 GL |
268 | /* |
269 | * PXA27x Camera specific stuff | |
270 | */ | |
271 | #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE) | |
272 | static int pcm990_pxacamera_init(struct device *dev) | |
273 | { | |
274 | pxa_gpio_mode(GPIO98_CIF_DD_0_MD); | |
275 | pxa_gpio_mode(GPIO105_CIF_DD_1_MD); | |
276 | pxa_gpio_mode(GPIO104_CIF_DD_2_MD); | |
277 | pxa_gpio_mode(GPIO103_CIF_DD_3_MD); | |
278 | pxa_gpio_mode(GPIO95_CIF_DD_4_MD); | |
279 | pxa_gpio_mode(GPIO94_CIF_DD_5_MD); | |
280 | pxa_gpio_mode(GPIO93_CIF_DD_6_MD); | |
281 | pxa_gpio_mode(GPIO108_CIF_DD_7_MD); | |
282 | pxa_gpio_mode(GPIO107_CIF_DD_8_MD); | |
283 | pxa_gpio_mode(GPIO106_CIF_DD_9_MD); | |
284 | pxa_gpio_mode(GPIO42_CIF_MCLK_MD); | |
285 | pxa_gpio_mode(GPIO45_CIF_PCLK_MD); | |
286 | pxa_gpio_mode(GPIO43_CIF_FV_MD); | |
287 | pxa_gpio_mode(GPIO44_CIF_LV_MD); | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | /* | |
293 | * CICR4: PCLK_EN: Pixel clock is supplied by the sensor | |
294 | * MCLK_EN: Master clock is generated by PXA | |
295 | * PCP: Data sampled on the falling edge of pixel clock | |
296 | */ | |
297 | struct pxacamera_platform_data pcm990_pxacamera_platform_data = { | |
298 | .init = pcm990_pxacamera_init, | |
299 | .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 | PXA_CAMERA_DATAWIDTH_10 | | |
300 | PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN/* | PXA_CAMERA_PCP*/, | |
301 | .mclk_10khz = 1000, | |
302 | }; | |
303 | ||
304 | #include <linux/i2c/pca953x.h> | |
305 | ||
306 | static struct pca953x_platform_data pca9536_data = { | |
307 | .gpio_base = NR_BUILTIN_GPIO + 1, | |
308 | }; | |
309 | ||
310 | static struct soc_camera_link iclink[] = { | |
311 | { | |
312 | .bus_id = 0, /* Must match with the camera ID above */ | |
313 | .gpio = NR_BUILTIN_GPIO + 1, | |
314 | }, { | |
315 | .bus_id = 0, /* Must match with the camera ID above */ | |
316 | } | |
317 | }; | |
318 | ||
319 | /* Board I2C devices. */ | |
320 | static struct i2c_board_info __initdata pcm990_i2c_devices[] = { | |
321 | { | |
322 | /* Must initialize before the camera(s) */ | |
323 | I2C_BOARD_INFO("pca953x", 0x41), | |
324 | .type = "pca9536", | |
325 | .platform_data = &pca9536_data, | |
326 | }, { | |
327 | I2C_BOARD_INFO("mt9v022", 0x48), | |
328 | .type = "mt9v022", | |
329 | .platform_data = &iclink[0], /* With extender */ | |
330 | }, { | |
331 | I2C_BOARD_INFO("mt9m001", 0x5d), | |
332 | .type = "mt9m001", | |
333 | .platform_data = &iclink[0], /* With extender */ | |
334 | }, | |
335 | }; | |
336 | #endif /* CONFIG_VIDEO_PXA27x ||CONFIG_VIDEO_PXA27x_MODULE */ | |
337 | ||
2e927b76 RS |
338 | /* |
339 | * AC97 support | |
340 | * Note: The connected AC97 mixer also reports interrupts at PCM990_AC97_IRQ | |
341 | */ | |
342 | static struct resource pxa27x_ac97_resources[] = { | |
343 | [0] = { | |
344 | .start = 0x40500000, | |
345 | .end = 0x40500000 + 0xfff, | |
346 | .flags = IORESOURCE_MEM, | |
347 | }, | |
348 | [1] = { | |
349 | .start = IRQ_AC97, | |
350 | .end = IRQ_AC97, | |
351 | .flags = IORESOURCE_IRQ, | |
352 | }, | |
353 | }; | |
354 | ||
355 | static u64 pxa_ac97_dmamask = 0xffffffffUL; | |
356 | ||
357 | static struct platform_device pxa27x_device_ac97 = { | |
358 | .name = "pxa2xx-ac97", | |
359 | .id = -1, | |
360 | .dev = { | |
361 | .dma_mask = &pxa_ac97_dmamask, | |
362 | .coherent_dma_mask = 0xffffffff, | |
363 | }, | |
364 | .num_resources = ARRAY_SIZE(pxa27x_ac97_resources), | |
365 | .resource = pxa27x_ac97_resources, | |
366 | }; | |
367 | ||
368 | /* | |
369 | * enable generic access to the base board control CPLDs U6 and U7 | |
370 | */ | |
371 | static struct map_desc pcm990_io_desc[] __initdata = { | |
372 | { | |
373 | .virtual = PCM990_CTRL_BASE, | |
374 | .pfn = __phys_to_pfn(PCM990_CTRL_PHYS), | |
375 | .length = PCM990_CTRL_SIZE, | |
376 | .type = MT_DEVICE /* CPLD */ | |
377 | }, { | |
378 | .virtual = PCM990_CF_PLD_BASE, | |
379 | .pfn = __phys_to_pfn(PCM990_CF_PLD_PHYS), | |
380 | .length = PCM990_CF_PLD_SIZE, | |
381 | .type = MT_DEVICE /* CPLD */ | |
382 | } | |
383 | }; | |
384 | ||
385 | /* | |
386 | * system init for baseboard usage. Will be called by pcm027 init. | |
387 | * | |
388 | * Add platform devices present on this baseboard and init | |
389 | * them from CPU side as far as required to use them later on | |
390 | */ | |
391 | void __init pcm990_baseboard_init(void) | |
392 | { | |
393 | /* register CPLD access */ | |
394 | iotable_init(pcm990_io_desc, ARRAY_SIZE(pcm990_io_desc)); | |
395 | ||
396 | /* register CPLD's IRQ controller */ | |
397 | pcm990_init_irq(); | |
398 | ||
399 | platform_device_register(&pxa27x_device_ac97); | |
400 | ||
401 | /* MMC */ | |
402 | pxa_set_mci_info(&pcm990_mci_platform_data); | |
403 | ||
404 | /* USB host */ | |
405 | pxa_set_ohci_info(&pcm990_ohci_platform_data); | |
406 | ||
58762e77 GL |
407 | pxa_set_i2c_info(NULL); |
408 | ||
409 | #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE) | |
410 | pxa_set_camera_info(&pcm990_pxacamera_platform_data); | |
411 | ||
412 | i2c_register_board_info(0, pcm990_i2c_devices, | |
413 | ARRAY_SIZE(pcm990_i2c_devices)); | |
414 | #endif | |
415 | ||
2e927b76 RS |
416 | printk(KERN_INFO"PCM-990 Evaluation baseboard initialized\n"); |
417 | } |