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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> | |
13 | #include <linux/sysdev.h> | |
14 | #include <linux/irq.h> | |
15 | #include <linux/gpio.h> | |
a2099e49 | 16 | #include <linux/delay.h> |
4adc5fb6 MR |
17 | |
18 | #include <linux/rtc-v3020.h> | |
19 | #include <video/mbxfb.h> | |
20 | ||
a2099e49 MR |
21 | #include <linux/spi/spi.h> |
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> | |
a2099e49 | 27 | #include <mach/pxa2xx_spi.h> |
4adc5fb6 MR |
28 | |
29 | #include "generic.h" | |
30 | ||
31 | /* physical address if local-bus attached devices */ | |
32 | #define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22)) | |
33 | ||
34 | /* GPIO IRQ usage */ | |
35 | #define GPIO83_MMC_IRQ (83) | |
36 | ||
37 | #define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ) | |
38 | ||
39 | /* MMC power enable */ | |
40 | #define GPIO105_MMC_POWER (105) | |
41 | ||
a2099e49 MR |
42 | /* WLAN GPIOS */ |
43 | #define GPIO19_WLAN_STRAP (19) | |
44 | #define GPIO102_WLAN_RST (102) | |
45 | ||
4adc5fb6 MR |
46 | static unsigned long cmx270_pin_config[] = { |
47 | /* AC'97 */ | |
48 | GPIO28_AC97_BITCLK, | |
49 | GPIO29_AC97_SDATA_IN_0, | |
50 | GPIO30_AC97_SDATA_OUT, | |
51 | GPIO31_AC97_SYNC, | |
52 | GPIO98_AC97_SYSCLK, | |
53 | GPIO113_AC97_nRESET, | |
54 | ||
55 | /* BTUART */ | |
56 | GPIO42_BTUART_RXD, | |
57 | GPIO43_BTUART_TXD, | |
58 | GPIO44_BTUART_CTS, | |
59 | GPIO45_BTUART_RTS, | |
60 | ||
61 | /* STUART */ | |
62 | GPIO46_STUART_RXD, | |
63 | GPIO47_STUART_TXD, | |
64 | ||
65 | /* MCI controller */ | |
66 | GPIO32_MMC_CLK, | |
67 | GPIO112_MMC_CMD, | |
68 | GPIO92_MMC_DAT_0, | |
69 | GPIO109_MMC_DAT_1, | |
70 | GPIO110_MMC_DAT_2, | |
71 | GPIO111_MMC_DAT_3, | |
72 | ||
73 | /* LCD */ | |
74 | GPIO58_LCD_LDD_0, | |
75 | GPIO59_LCD_LDD_1, | |
76 | GPIO60_LCD_LDD_2, | |
77 | GPIO61_LCD_LDD_3, | |
78 | GPIO62_LCD_LDD_4, | |
79 | GPIO63_LCD_LDD_5, | |
80 | GPIO64_LCD_LDD_6, | |
81 | GPIO65_LCD_LDD_7, | |
82 | GPIO66_LCD_LDD_8, | |
83 | GPIO67_LCD_LDD_9, | |
84 | GPIO68_LCD_LDD_10, | |
85 | GPIO69_LCD_LDD_11, | |
86 | GPIO70_LCD_LDD_12, | |
87 | GPIO71_LCD_LDD_13, | |
88 | GPIO72_LCD_LDD_14, | |
89 | GPIO73_LCD_LDD_15, | |
90 | GPIO74_LCD_FCLK, | |
91 | GPIO75_LCD_LCLK, | |
92 | GPIO76_LCD_PCLK, | |
93 | GPIO77_LCD_BIAS, | |
94 | ||
95 | /* I2C */ | |
96 | GPIO117_I2C_SCL, | |
97 | GPIO118_I2C_SDA, | |
98 | ||
99 | /* SSP1 */ | |
100 | GPIO23_SSP1_SCLK, | |
101 | GPIO24_SSP1_SFRM, | |
102 | GPIO25_SSP1_TXD, | |
103 | GPIO26_SSP1_RXD, | |
104 | ||
105 | /* SSP2 */ | |
a2099e49 MR |
106 | GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */ |
107 | GPIO14_GPIO, | |
4adc5fb6 MR |
108 | GPIO87_SSP2_TXD, |
109 | GPIO88_SSP2_RXD, | |
110 | ||
111 | /* PC Card */ | |
112 | GPIO48_nPOE, | |
113 | GPIO49_nPWE, | |
114 | GPIO50_nPIOR, | |
115 | GPIO51_nPIOW, | |
116 | GPIO85_nPCE_1, | |
117 | GPIO54_nPCE_2, | |
118 | GPIO55_nPREG, | |
119 | GPIO56_nPWAIT, | |
120 | GPIO57_nIOIS16, | |
121 | ||
122 | /* SDRAM and local bus */ | |
123 | GPIO15_nCS_1, | |
124 | GPIO78_nCS_2, | |
125 | GPIO79_nCS_3, | |
126 | GPIO80_nCS_4, | |
127 | GPIO33_nCS_5, | |
128 | GPIO49_nPWE, | |
129 | GPIO18_RDY, | |
130 | ||
131 | /* GPIO */ | |
132 | GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, | |
133 | GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */ | |
134 | GPIO53_GPIO, /* PC card reset */ | |
a2099e49 | 135 | GPIO102_GPIO, /* WLAN reset */ |
4adc5fb6 MR |
136 | |
137 | /* NAND controls */ | |
138 | GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */ | |
139 | GPIO89_GPIO, /* NAND Ready/Busy */ | |
140 | ||
141 | /* interrupts */ | |
142 | GPIO10_GPIO, /* DM9000 interrupt */ | |
143 | GPIO83_GPIO, /* MMC card detect */ | |
a2099e49 | 144 | GPIO95_GPIO, /* WLAN interrupt */ |
4adc5fb6 MR |
145 | }; |
146 | ||
147 | /* V3020 RTC */ | |
148 | #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE) | |
149 | static struct resource cmx270_v3020_resource[] = { | |
150 | [0] = { | |
151 | .start = RTC_PHYS_BASE, | |
152 | .end = RTC_PHYS_BASE + 4, | |
153 | .flags = IORESOURCE_MEM, | |
154 | }, | |
155 | }; | |
156 | ||
157 | struct v3020_platform_data cmx270_v3020_pdata = { | |
158 | .leftshift = 16, | |
159 | }; | |
160 | ||
161 | static struct platform_device cmx270_rtc_device = { | |
162 | .name = "v3020", | |
163 | .num_resources = ARRAY_SIZE(cmx270_v3020_resource), | |
164 | .resource = cmx270_v3020_resource, | |
165 | .id = -1, | |
166 | .dev = { | |
167 | .platform_data = &cmx270_v3020_pdata, | |
168 | } | |
169 | }; | |
170 | ||
171 | static void __init cmx270_init_rtc(void) | |
172 | { | |
173 | platform_device_register(&cmx270_rtc_device); | |
174 | } | |
175 | #else | |
598dca1f | 176 | static inline void cmx270_init_rtc(void) {} |
4adc5fb6 MR |
177 | #endif |
178 | ||
179 | /* 2700G graphics */ | |
180 | #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE) | |
181 | static u64 fb_dma_mask = ~(u64)0; | |
182 | ||
183 | static struct resource cmx270_2700G_resource[] = { | |
184 | /* frame buffer memory including ODFB and External SDRAM */ | |
185 | [0] = { | |
186 | .start = PXA_CS2_PHYS, | |
187 | .end = PXA_CS2_PHYS + 0x01ffffff, | |
188 | .flags = IORESOURCE_MEM, | |
189 | }, | |
190 | /* Marathon registers */ | |
191 | [1] = { | |
192 | .start = PXA_CS2_PHYS + 0x03fe0000, | |
193 | .end = PXA_CS2_PHYS + 0x03ffffff, | |
194 | .flags = IORESOURCE_MEM, | |
195 | }, | |
196 | }; | |
197 | ||
198 | static unsigned long save_lcd_regs[10]; | |
199 | ||
200 | static int cmx270_marathon_probe(struct fb_info *fb) | |
201 | { | |
202 | /* save PXA-270 pin settings before enabling 2700G */ | |
203 | save_lcd_regs[0] = GPDR1; | |
204 | save_lcd_regs[1] = GPDR2; | |
205 | save_lcd_regs[2] = GAFR1_U; | |
206 | save_lcd_regs[3] = GAFR2_L; | |
207 | save_lcd_regs[4] = GAFR2_U; | |
208 | ||
209 | /* Disable PXA-270 on-chip controller driving pins */ | |
210 | GPDR1 &= ~(0xfc000000); | |
211 | GPDR2 &= ~(0x00c03fff); | |
212 | GAFR1_U &= ~(0xfff00000); | |
213 | GAFR2_L &= ~(0x0fffffff); | |
214 | GAFR2_U &= ~(0x0000f000); | |
215 | return 0; | |
216 | } | |
217 | ||
218 | static int cmx270_marathon_remove(struct fb_info *fb) | |
219 | { | |
220 | GPDR1 = save_lcd_regs[0]; | |
221 | GPDR2 = save_lcd_regs[1]; | |
222 | GAFR1_U = save_lcd_regs[2]; | |
223 | GAFR2_L = save_lcd_regs[3]; | |
224 | GAFR2_U = save_lcd_regs[4]; | |
225 | return 0; | |
226 | } | |
227 | ||
228 | static struct mbxfb_platform_data cmx270_2700G_data = { | |
229 | .xres = { | |
230 | .min = 240, | |
231 | .max = 1200, | |
232 | .defval = 640, | |
233 | }, | |
234 | .yres = { | |
235 | .min = 240, | |
236 | .max = 1200, | |
237 | .defval = 480, | |
238 | }, | |
239 | .bpp = { | |
240 | .min = 16, | |
241 | .max = 32, | |
242 | .defval = 16, | |
243 | }, | |
244 | .memsize = 8*1024*1024, | |
245 | .probe = cmx270_marathon_probe, | |
246 | .remove = cmx270_marathon_remove, | |
247 | }; | |
248 | ||
249 | static struct platform_device cmx270_2700G = { | |
250 | .name = "mbx-fb", | |
251 | .dev = { | |
252 | .platform_data = &cmx270_2700G_data, | |
253 | .dma_mask = &fb_dma_mask, | |
254 | .coherent_dma_mask = 0xffffffff, | |
255 | }, | |
256 | .num_resources = ARRAY_SIZE(cmx270_2700G_resource), | |
257 | .resource = cmx270_2700G_resource, | |
258 | .id = -1, | |
259 | }; | |
260 | ||
261 | static void __init cmx270_init_2700G(void) | |
262 | { | |
263 | platform_device_register(&cmx270_2700G); | |
264 | } | |
265 | #else | |
266 | static inline void cmx270_init_2700G(void) {} | |
267 | #endif | |
268 | ||
269 | /* PXA27x OHCI controller setup */ | |
270 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) | |
4adc5fb6 MR |
271 | static struct pxaohci_platform_data cmx270_ohci_platform_data = { |
272 | .port_mode = PMM_PERPORT_MODE, | |
097b5334 | 273 | .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW, |
4adc5fb6 MR |
274 | }; |
275 | ||
276 | static void __init cmx270_init_ohci(void) | |
277 | { | |
278 | pxa_set_ohci_info(&cmx270_ohci_platform_data); | |
279 | } | |
280 | #else | |
281 | static inline void cmx270_init_ohci(void) {} | |
282 | #endif | |
283 | ||
284 | #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE) | |
4adc5fb6 | 285 | static struct pxamci_platform_data cmx270_mci_platform_data = { |
7a648256 RJ |
286 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
287 | .gpio_card_detect = GPIO83_MMC_IRQ, | |
288 | .gpio_card_ro = -1, | |
289 | .gpio_power = GPIO105_MMC_POWER, | |
290 | .gpio_power_invert = 1, | |
4adc5fb6 MR |
291 | }; |
292 | ||
293 | static void __init cmx270_init_mmc(void) | |
294 | { | |
295 | pxa_set_mci_info(&cmx270_mci_platform_data); | |
296 | } | |
297 | #else | |
298 | static inline void cmx270_init_mmc(void) {} | |
299 | #endif | |
300 | ||
a2099e49 MR |
301 | #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) |
302 | static struct pxa2xx_spi_master cm_x270_spi_info = { | |
303 | .num_chipselect = 1, | |
304 | .enable_dma = 1, | |
305 | }; | |
306 | ||
307 | static struct pxa2xx_spi_chip cm_x270_libertas_chip = { | |
308 | .rx_threshold = 1, | |
309 | .tx_threshold = 1, | |
310 | .timeout = 1000, | |
311 | .gpio_cs = 14, | |
312 | }; | |
313 | ||
314 | static unsigned long cm_x270_libertas_pin_config[] = { | |
315 | /* SSP2 */ | |
316 | GPIO19_SSP2_SCLK, | |
317 | GPIO14_GPIO, | |
318 | GPIO87_SSP2_TXD, | |
319 | GPIO88_SSP2_RXD, | |
320 | ||
321 | }; | |
322 | ||
323 | static int cm_x270_libertas_setup(struct spi_device *spi) | |
324 | { | |
325 | int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP"); | |
326 | if (err) | |
327 | return err; | |
328 | ||
329 | err = gpio_request(GPIO102_WLAN_RST, "WLAN RST"); | |
330 | if (err) | |
331 | goto err_free_strap; | |
332 | ||
333 | err = gpio_direction_output(GPIO102_WLAN_RST, 0); | |
334 | if (err) | |
335 | goto err_free_strap; | |
336 | msleep(100); | |
337 | ||
338 | err = gpio_direction_output(GPIO19_WLAN_STRAP, 1); | |
339 | if (err) | |
340 | goto err_free_strap; | |
341 | msleep(100); | |
342 | ||
343 | pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config)); | |
344 | ||
345 | gpio_set_value(GPIO102_WLAN_RST, 1); | |
346 | msleep(100); | |
347 | ||
348 | spi->bits_per_word = 16; | |
349 | spi_setup(spi); | |
350 | ||
351 | return 0; | |
352 | ||
353 | err_free_strap: | |
354 | gpio_free(GPIO19_WLAN_STRAP); | |
355 | ||
356 | return err; | |
357 | } | |
358 | ||
359 | static int cm_x270_libertas_teardown(struct spi_device *spi) | |
360 | { | |
361 | gpio_set_value(GPIO102_WLAN_RST, 0); | |
362 | gpio_free(GPIO102_WLAN_RST); | |
363 | gpio_free(GPIO19_WLAN_STRAP); | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
368 | struct libertas_spi_platform_data cm_x270_libertas_pdata = { | |
369 | .use_dummy_writes = 1, | |
370 | .setup = cm_x270_libertas_setup, | |
371 | .teardown = cm_x270_libertas_teardown, | |
372 | }; | |
373 | ||
374 | static struct spi_board_info cm_x270_spi_devices[] __initdata = { | |
375 | { | |
376 | .modalias = "libertas_spi", | |
377 | .max_speed_hz = 13000000, | |
378 | .bus_num = 2, | |
379 | .irq = gpio_to_irq(95), | |
380 | .chip_select = 0, | |
381 | .controller_data = &cm_x270_libertas_chip, | |
382 | .platform_data = &cm_x270_libertas_pdata, | |
383 | }, | |
384 | }; | |
385 | ||
386 | static void __init cmx270_init_spi(void) | |
387 | { | |
388 | pxa2xx_set_spi_info(2, &cm_x270_spi_info); | |
389 | spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices)); | |
390 | } | |
391 | #else | |
392 | static inline void cmx270_init_spi(void) {} | |
393 | #endif | |
394 | ||
4adc5fb6 MR |
395 | void __init cmx270_init(void) |
396 | { | |
397 | pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config)); | |
398 | ||
9599d1db MR |
399 | #ifdef CONFIG_PM |
400 | pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP); | |
401 | #endif | |
402 | ||
4adc5fb6 MR |
403 | cmx270_init_rtc(); |
404 | cmx270_init_mmc(); | |
405 | cmx270_init_ohci(); | |
406 | cmx270_init_2700G(); | |
a2099e49 | 407 | cmx270_init_spi(); |
4adc5fb6 | 408 | } |