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4adc5fb6 MR |
1 | /* |
2 | * linux/arch/arm/mach-pxa/cm-x270.c | |
3 | * | |
4 | * Copyright (C) 2007, 2008 CompuLab, Ltd. | |
5 | * Mike Rapoport <mike@compulab.co.il> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/platform_device.h> | |
4adc5fb6 MR |
13 | #include <linux/irq.h> |
14 | #include <linux/gpio.h> | |
a2099e49 | 15 | #include <linux/delay.h> |
4adc5fb6 MR |
16 | |
17 | #include <linux/rtc-v3020.h> | |
18 | #include <video/mbxfb.h> | |
19 | ||
a2099e49 | 20 | #include <linux/spi/spi.h> |
8348c259 | 21 | #include <linux/spi/pxa2xx_spi.h> |
a2099e49 MR |
22 | #include <linux/spi/libertas_spi.h> |
23 | ||
51c62982 | 24 | #include <mach/pxa27x.h> |
4adc5fb6 MR |
25 | #include <mach/ohci.h> |
26 | #include <mach/mmc.h> | |
27 | ||
28 | #include "generic.h" | |
29 | ||
30 | /* physical address if local-bus attached devices */ | |
31 | #define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22)) | |
32 | ||
33 | /* GPIO IRQ usage */ | |
34 | #define GPIO83_MMC_IRQ (83) | |
35 | ||
36 | #define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ) | |
37 | ||
38 | /* MMC power enable */ | |
39 | #define GPIO105_MMC_POWER (105) | |
40 | ||
a2099e49 MR |
41 | /* WLAN GPIOS */ |
42 | #define GPIO19_WLAN_STRAP (19) | |
43 | #define GPIO102_WLAN_RST (102) | |
44 | ||
4adc5fb6 MR |
45 | static unsigned long cmx270_pin_config[] = { |
46 | /* AC'97 */ | |
47 | GPIO28_AC97_BITCLK, | |
48 | GPIO29_AC97_SDATA_IN_0, | |
49 | GPIO30_AC97_SDATA_OUT, | |
50 | GPIO31_AC97_SYNC, | |
51 | GPIO98_AC97_SYSCLK, | |
52 | GPIO113_AC97_nRESET, | |
53 | ||
54 | /* BTUART */ | |
55 | GPIO42_BTUART_RXD, | |
56 | GPIO43_BTUART_TXD, | |
57 | GPIO44_BTUART_CTS, | |
58 | GPIO45_BTUART_RTS, | |
59 | ||
60 | /* STUART */ | |
61 | GPIO46_STUART_RXD, | |
62 | GPIO47_STUART_TXD, | |
63 | ||
64 | /* MCI controller */ | |
65 | GPIO32_MMC_CLK, | |
66 | GPIO112_MMC_CMD, | |
67 | GPIO92_MMC_DAT_0, | |
68 | GPIO109_MMC_DAT_1, | |
69 | GPIO110_MMC_DAT_2, | |
70 | GPIO111_MMC_DAT_3, | |
71 | ||
72 | /* LCD */ | |
bedbda97 | 73 | GPIOxx_LCD_TFT_16BPP, |
4adc5fb6 MR |
74 | |
75 | /* I2C */ | |
76 | GPIO117_I2C_SCL, | |
77 | GPIO118_I2C_SDA, | |
78 | ||
79 | /* SSP1 */ | |
80 | GPIO23_SSP1_SCLK, | |
81 | GPIO24_SSP1_SFRM, | |
82 | GPIO25_SSP1_TXD, | |
83 | GPIO26_SSP1_RXD, | |
84 | ||
85 | /* SSP2 */ | |
a2099e49 MR |
86 | GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */ |
87 | GPIO14_GPIO, | |
4adc5fb6 MR |
88 | GPIO87_SSP2_TXD, |
89 | GPIO88_SSP2_RXD, | |
90 | ||
91 | /* PC Card */ | |
92 | GPIO48_nPOE, | |
93 | GPIO49_nPWE, | |
94 | GPIO50_nPIOR, | |
95 | GPIO51_nPIOW, | |
96 | GPIO85_nPCE_1, | |
97 | GPIO54_nPCE_2, | |
98 | GPIO55_nPREG, | |
99 | GPIO56_nPWAIT, | |
100 | GPIO57_nIOIS16, | |
101 | ||
102 | /* SDRAM and local bus */ | |
103 | GPIO15_nCS_1, | |
104 | GPIO78_nCS_2, | |
105 | GPIO79_nCS_3, | |
106 | GPIO80_nCS_4, | |
107 | GPIO33_nCS_5, | |
108 | GPIO49_nPWE, | |
109 | GPIO18_RDY, | |
110 | ||
111 | /* GPIO */ | |
112 | GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, | |
113 | GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */ | |
114 | GPIO53_GPIO, /* PC card reset */ | |
a2099e49 | 115 | GPIO102_GPIO, /* WLAN reset */ |
4adc5fb6 MR |
116 | |
117 | /* NAND controls */ | |
118 | GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */ | |
119 | GPIO89_GPIO, /* NAND Ready/Busy */ | |
120 | ||
121 | /* interrupts */ | |
122 | GPIO10_GPIO, /* DM9000 interrupt */ | |
123 | GPIO83_GPIO, /* MMC card detect */ | |
a2099e49 | 124 | GPIO95_GPIO, /* WLAN interrupt */ |
4adc5fb6 MR |
125 | }; |
126 | ||
127 | /* V3020 RTC */ | |
128 | #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE) | |
129 | static struct resource cmx270_v3020_resource[] = { | |
130 | [0] = { | |
131 | .start = RTC_PHYS_BASE, | |
132 | .end = RTC_PHYS_BASE + 4, | |
133 | .flags = IORESOURCE_MEM, | |
134 | }, | |
135 | }; | |
136 | ||
137 | struct v3020_platform_data cmx270_v3020_pdata = { | |
138 | .leftshift = 16, | |
139 | }; | |
140 | ||
141 | static struct platform_device cmx270_rtc_device = { | |
142 | .name = "v3020", | |
143 | .num_resources = ARRAY_SIZE(cmx270_v3020_resource), | |
144 | .resource = cmx270_v3020_resource, | |
145 | .id = -1, | |
146 | .dev = { | |
147 | .platform_data = &cmx270_v3020_pdata, | |
148 | } | |
149 | }; | |
150 | ||
151 | static void __init cmx270_init_rtc(void) | |
152 | { | |
153 | platform_device_register(&cmx270_rtc_device); | |
154 | } | |
155 | #else | |
598dca1f | 156 | static inline void cmx270_init_rtc(void) {} |
4adc5fb6 MR |
157 | #endif |
158 | ||
159 | /* 2700G graphics */ | |
160 | #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE) | |
161 | static u64 fb_dma_mask = ~(u64)0; | |
162 | ||
163 | static struct resource cmx270_2700G_resource[] = { | |
164 | /* frame buffer memory including ODFB and External SDRAM */ | |
165 | [0] = { | |
166 | .start = PXA_CS2_PHYS, | |
167 | .end = PXA_CS2_PHYS + 0x01ffffff, | |
168 | .flags = IORESOURCE_MEM, | |
169 | }, | |
170 | /* Marathon registers */ | |
171 | [1] = { | |
172 | .start = PXA_CS2_PHYS + 0x03fe0000, | |
173 | .end = PXA_CS2_PHYS + 0x03ffffff, | |
174 | .flags = IORESOURCE_MEM, | |
175 | }, | |
176 | }; | |
177 | ||
96f6a13a EM |
178 | static unsigned long cmx270_marathon_on[] = { |
179 | GPIO58_GPIO, | |
180 | GPIO59_GPIO, | |
181 | GPIO60_GPIO, | |
182 | GPIO61_GPIO, | |
183 | GPIO62_GPIO, | |
184 | GPIO63_GPIO, | |
185 | GPIO64_GPIO, | |
186 | GPIO65_GPIO, | |
187 | GPIO66_GPIO, | |
188 | GPIO67_GPIO, | |
189 | GPIO68_GPIO, | |
190 | GPIO69_GPIO, | |
191 | GPIO70_GPIO, | |
192 | GPIO71_GPIO, | |
193 | GPIO72_GPIO, | |
194 | GPIO73_GPIO, | |
195 | GPIO74_GPIO, | |
196 | GPIO75_GPIO, | |
197 | GPIO76_GPIO, | |
198 | GPIO77_GPIO, | |
199 | }; | |
200 | ||
201 | static unsigned long cmx270_marathon_off[] = { | |
202 | GPIOxx_LCD_TFT_16BPP, | |
203 | }; | |
4adc5fb6 MR |
204 | |
205 | static int cmx270_marathon_probe(struct fb_info *fb) | |
206 | { | |
96f6a13a EM |
207 | int gpio, err; |
208 | ||
209 | for (gpio = 58; gpio <= 77; gpio++) { | |
210 | err = gpio_request(gpio, "LCD"); | |
211 | if (err) | |
212 | return err; | |
213 | gpio_direction_input(gpio); | |
214 | } | |
215 | ||
216 | pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on)); | |
4adc5fb6 MR |
217 | return 0; |
218 | } | |
219 | ||
220 | static int cmx270_marathon_remove(struct fb_info *fb) | |
221 | { | |
96f6a13a EM |
222 | int gpio; |
223 | ||
224 | pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off)); | |
225 | ||
226 | for (gpio = 58; gpio <= 77; gpio++) | |
227 | gpio_free(gpio); | |
228 | ||
4adc5fb6 MR |
229 | return 0; |
230 | } | |
231 | ||
232 | static struct mbxfb_platform_data cmx270_2700G_data = { | |
233 | .xres = { | |
234 | .min = 240, | |
235 | .max = 1200, | |
236 | .defval = 640, | |
237 | }, | |
238 | .yres = { | |
239 | .min = 240, | |
240 | .max = 1200, | |
241 | .defval = 480, | |
242 | }, | |
243 | .bpp = { | |
244 | .min = 16, | |
245 | .max = 32, | |
246 | .defval = 16, | |
247 | }, | |
248 | .memsize = 8*1024*1024, | |
249 | .probe = cmx270_marathon_probe, | |
250 | .remove = cmx270_marathon_remove, | |
251 | }; | |
252 | ||
253 | static struct platform_device cmx270_2700G = { | |
254 | .name = "mbx-fb", | |
255 | .dev = { | |
256 | .platform_data = &cmx270_2700G_data, | |
257 | .dma_mask = &fb_dma_mask, | |
258 | .coherent_dma_mask = 0xffffffff, | |
259 | }, | |
260 | .num_resources = ARRAY_SIZE(cmx270_2700G_resource), | |
261 | .resource = cmx270_2700G_resource, | |
262 | .id = -1, | |
263 | }; | |
264 | ||
265 | static void __init cmx270_init_2700G(void) | |
266 | { | |
267 | platform_device_register(&cmx270_2700G); | |
268 | } | |
269 | #else | |
270 | static inline void cmx270_init_2700G(void) {} | |
271 | #endif | |
272 | ||
273 | /* PXA27x OHCI controller setup */ | |
274 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) | |
4adc5fb6 MR |
275 | static struct pxaohci_platform_data cmx270_ohci_platform_data = { |
276 | .port_mode = PMM_PERPORT_MODE, | |
097b5334 | 277 | .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW, |
4adc5fb6 MR |
278 | }; |
279 | ||
280 | static void __init cmx270_init_ohci(void) | |
281 | { | |
282 | pxa_set_ohci_info(&cmx270_ohci_platform_data); | |
283 | } | |
284 | #else | |
285 | static inline void cmx270_init_ohci(void) {} | |
286 | #endif | |
287 | ||
288 | #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE) | |
4adc5fb6 | 289 | static struct pxamci_platform_data cmx270_mci_platform_data = { |
7a648256 RJ |
290 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
291 | .gpio_card_detect = GPIO83_MMC_IRQ, | |
292 | .gpio_card_ro = -1, | |
293 | .gpio_power = GPIO105_MMC_POWER, | |
294 | .gpio_power_invert = 1, | |
4adc5fb6 MR |
295 | }; |
296 | ||
297 | static void __init cmx270_init_mmc(void) | |
298 | { | |
299 | pxa_set_mci_info(&cmx270_mci_platform_data); | |
300 | } | |
301 | #else | |
302 | static inline void cmx270_init_mmc(void) {} | |
303 | #endif | |
304 | ||
a2099e49 MR |
305 | #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) |
306 | static struct pxa2xx_spi_master cm_x270_spi_info = { | |
307 | .num_chipselect = 1, | |
308 | .enable_dma = 1, | |
309 | }; | |
310 | ||
311 | static struct pxa2xx_spi_chip cm_x270_libertas_chip = { | |
312 | .rx_threshold = 1, | |
313 | .tx_threshold = 1, | |
314 | .timeout = 1000, | |
315 | .gpio_cs = 14, | |
316 | }; | |
317 | ||
318 | static unsigned long cm_x270_libertas_pin_config[] = { | |
319 | /* SSP2 */ | |
320 | GPIO19_SSP2_SCLK, | |
321 | GPIO14_GPIO, | |
322 | GPIO87_SSP2_TXD, | |
323 | GPIO88_SSP2_RXD, | |
324 | ||
325 | }; | |
326 | ||
327 | static int cm_x270_libertas_setup(struct spi_device *spi) | |
328 | { | |
329 | int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP"); | |
330 | if (err) | |
331 | return err; | |
332 | ||
333 | err = gpio_request(GPIO102_WLAN_RST, "WLAN RST"); | |
334 | if (err) | |
335 | goto err_free_strap; | |
336 | ||
337 | err = gpio_direction_output(GPIO102_WLAN_RST, 0); | |
338 | if (err) | |
339 | goto err_free_strap; | |
340 | msleep(100); | |
341 | ||
342 | err = gpio_direction_output(GPIO19_WLAN_STRAP, 1); | |
343 | if (err) | |
344 | goto err_free_strap; | |
345 | msleep(100); | |
346 | ||
347 | pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config)); | |
348 | ||
349 | gpio_set_value(GPIO102_WLAN_RST, 1); | |
350 | msleep(100); | |
351 | ||
352 | spi->bits_per_word = 16; | |
353 | spi_setup(spi); | |
354 | ||
355 | return 0; | |
356 | ||
357 | err_free_strap: | |
358 | gpio_free(GPIO19_WLAN_STRAP); | |
359 | ||
360 | return err; | |
361 | } | |
362 | ||
363 | static int cm_x270_libertas_teardown(struct spi_device *spi) | |
364 | { | |
365 | gpio_set_value(GPIO102_WLAN_RST, 0); | |
366 | gpio_free(GPIO102_WLAN_RST); | |
367 | gpio_free(GPIO19_WLAN_STRAP); | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
372 | struct libertas_spi_platform_data cm_x270_libertas_pdata = { | |
373 | .use_dummy_writes = 1, | |
374 | .setup = cm_x270_libertas_setup, | |
375 | .teardown = cm_x270_libertas_teardown, | |
376 | }; | |
377 | ||
378 | static struct spi_board_info cm_x270_spi_devices[] __initdata = { | |
379 | { | |
380 | .modalias = "libertas_spi", | |
381 | .max_speed_hz = 13000000, | |
382 | .bus_num = 2, | |
383 | .irq = gpio_to_irq(95), | |
384 | .chip_select = 0, | |
385 | .controller_data = &cm_x270_libertas_chip, | |
386 | .platform_data = &cm_x270_libertas_pdata, | |
387 | }, | |
388 | }; | |
389 | ||
390 | static void __init cmx270_init_spi(void) | |
391 | { | |
392 | pxa2xx_set_spi_info(2, &cm_x270_spi_info); | |
393 | spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices)); | |
394 | } | |
395 | #else | |
396 | static inline void cmx270_init_spi(void) {} | |
397 | #endif | |
398 | ||
4adc5fb6 MR |
399 | void __init cmx270_init(void) |
400 | { | |
401 | pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config)); | |
402 | ||
9599d1db MR |
403 | #ifdef CONFIG_PM |
404 | pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP); | |
405 | #endif | |
406 | ||
4adc5fb6 MR |
407 | cmx270_init_rtc(); |
408 | cmx270_init_mmc(); | |
409 | cmx270_init_ohci(); | |
410 | cmx270_init_2700G(); | |
a2099e49 | 411 | cmx270_init_spi(); |
4adc5fb6 | 412 | } |