a9926bb75922318a9f193752637d6505bc9429a5
[linux-2.6.git] / arch / arm / mach-pxa / cm-x270.c
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>
16 #include <linux/delay.h>
17
18 #include <linux/rtc-v3020.h>
19 #include <video/mbxfb.h>
20
21 #include <linux/spi/spi.h>
22 #include <linux/spi/libertas_spi.h>
23
24 #include <mach/pxa27x.h>
25 #include <mach/ohci.h>
26 #include <mach/mmc.h>
27 #include <mach/pxa2xx_spi.h>
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
42 /* WLAN GPIOS */
43 #define GPIO19_WLAN_STRAP       (19)
44 #define GPIO102_WLAN_RST        (102)
45
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         GPIOxx_LCD_TFT_16BPP,
75
76         /* I2C */
77         GPIO117_I2C_SCL,
78         GPIO118_I2C_SDA,
79
80         /* SSP1 */
81         GPIO23_SSP1_SCLK,
82         GPIO24_SSP1_SFRM,
83         GPIO25_SSP1_TXD,
84         GPIO26_SSP1_RXD,
85
86         /* SSP2 */
87         GPIO19_GPIO,    /* SSP2 clock is used as GPIO for Libertas pin-strap */
88         GPIO14_GPIO,
89         GPIO87_SSP2_TXD,
90         GPIO88_SSP2_RXD,
91
92         /* PC Card */
93         GPIO48_nPOE,
94         GPIO49_nPWE,
95         GPIO50_nPIOR,
96         GPIO51_nPIOW,
97         GPIO85_nPCE_1,
98         GPIO54_nPCE_2,
99         GPIO55_nPREG,
100         GPIO56_nPWAIT,
101         GPIO57_nIOIS16,
102
103         /* SDRAM and local bus */
104         GPIO15_nCS_1,
105         GPIO78_nCS_2,
106         GPIO79_nCS_3,
107         GPIO80_nCS_4,
108         GPIO33_nCS_5,
109         GPIO49_nPWE,
110         GPIO18_RDY,
111
112         /* GPIO */
113         GPIO0_GPIO      | WAKEUP_ON_EDGE_BOTH,
114         GPIO105_GPIO    | MFP_LPM_DRIVE_HIGH,   /* MMC/SD power */
115         GPIO53_GPIO,                            /* PC card reset */
116         GPIO102_GPIO,                           /* WLAN reset */
117
118         /* NAND controls */
119         GPIO11_GPIO     | MFP_LPM_DRIVE_HIGH,   /* NAND CE# */
120         GPIO89_GPIO,                            /* NAND Ready/Busy */
121
122         /* interrupts */
123         GPIO10_GPIO,    /* DM9000 interrupt */
124         GPIO83_GPIO,    /* MMC card detect */
125         GPIO95_GPIO,    /* WLAN interrupt */
126 };
127
128 /* V3020 RTC */
129 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
130 static struct resource cmx270_v3020_resource[] = {
131         [0] = {
132                 .start = RTC_PHYS_BASE,
133                 .end   = RTC_PHYS_BASE + 4,
134                 .flags = IORESOURCE_MEM,
135         },
136 };
137
138 struct v3020_platform_data cmx270_v3020_pdata = {
139         .leftshift = 16,
140 };
141
142 static struct platform_device cmx270_rtc_device = {
143         .name           = "v3020",
144         .num_resources  = ARRAY_SIZE(cmx270_v3020_resource),
145         .resource       = cmx270_v3020_resource,
146         .id             = -1,
147         .dev            = {
148                 .platform_data = &cmx270_v3020_pdata,
149         }
150 };
151
152 static void __init cmx270_init_rtc(void)
153 {
154         platform_device_register(&cmx270_rtc_device);
155 }
156 #else
157 static inline void cmx270_init_rtc(void) {}
158 #endif
159
160 /* 2700G graphics */
161 #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
162 static u64 fb_dma_mask = ~(u64)0;
163
164 static struct resource cmx270_2700G_resource[] = {
165         /* frame buffer memory including ODFB and External SDRAM */
166         [0] = {
167                 .start = PXA_CS2_PHYS,
168                 .end   = PXA_CS2_PHYS + 0x01ffffff,
169                 .flags = IORESOURCE_MEM,
170         },
171         /* Marathon registers */
172         [1] = {
173                 .start = PXA_CS2_PHYS + 0x03fe0000,
174                 .end   = PXA_CS2_PHYS + 0x03ffffff,
175                 .flags = IORESOURCE_MEM,
176         },
177 };
178
179 static unsigned long cmx270_marathon_on[] = {
180         GPIO58_GPIO,
181         GPIO59_GPIO,
182         GPIO60_GPIO,
183         GPIO61_GPIO,
184         GPIO62_GPIO,
185         GPIO63_GPIO,
186         GPIO64_GPIO,
187         GPIO65_GPIO,
188         GPIO66_GPIO,
189         GPIO67_GPIO,
190         GPIO68_GPIO,
191         GPIO69_GPIO,
192         GPIO70_GPIO,
193         GPIO71_GPIO,
194         GPIO72_GPIO,
195         GPIO73_GPIO,
196         GPIO74_GPIO,
197         GPIO75_GPIO,
198         GPIO76_GPIO,
199         GPIO77_GPIO,
200 };
201
202 static unsigned long cmx270_marathon_off[] = {
203         GPIOxx_LCD_TFT_16BPP,
204 };
205
206 static int cmx270_marathon_probe(struct fb_info *fb)
207 {
208         int gpio, err;
209
210         for (gpio = 58; gpio <= 77; gpio++) {
211                 err = gpio_request(gpio, "LCD");
212                 if (err)
213                         return err;
214                 gpio_direction_input(gpio);
215         }
216
217         pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on));
218         return 0;
219 }
220
221 static int cmx270_marathon_remove(struct fb_info *fb)
222 {
223         int gpio;
224
225         pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off));
226
227         for (gpio = 58; gpio <= 77; gpio++)
228                 gpio_free(gpio);
229
230         return 0;
231 }
232
233 static struct mbxfb_platform_data cmx270_2700G_data = {
234         .xres = {
235                 .min = 240,
236                 .max = 1200,
237                 .defval = 640,
238         },
239         .yres = {
240                 .min = 240,
241                 .max = 1200,
242                 .defval = 480,
243         },
244         .bpp = {
245                 .min = 16,
246                 .max = 32,
247                 .defval = 16,
248         },
249         .memsize = 8*1024*1024,
250         .probe = cmx270_marathon_probe,
251         .remove = cmx270_marathon_remove,
252 };
253
254 static struct platform_device cmx270_2700G = {
255         .name           = "mbx-fb",
256         .dev            = {
257                 .platform_data  = &cmx270_2700G_data,
258                 .dma_mask       = &fb_dma_mask,
259                 .coherent_dma_mask = 0xffffffff,
260         },
261         .num_resources  = ARRAY_SIZE(cmx270_2700G_resource),
262         .resource       = cmx270_2700G_resource,
263         .id             = -1,
264 };
265
266 static void __init cmx270_init_2700G(void)
267 {
268         platform_device_register(&cmx270_2700G);
269 }
270 #else
271 static inline void cmx270_init_2700G(void) {}
272 #endif
273
274 /* PXA27x OHCI controller setup */
275 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
276 static struct pxaohci_platform_data cmx270_ohci_platform_data = {
277         .port_mode      = PMM_PERPORT_MODE,
278         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
279 };
280
281 static void __init cmx270_init_ohci(void)
282 {
283         pxa_set_ohci_info(&cmx270_ohci_platform_data);
284 }
285 #else
286 static inline void cmx270_init_ohci(void) {}
287 #endif
288
289 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
290 static struct pxamci_platform_data cmx270_mci_platform_data = {
291         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
292         .gpio_card_detect       = GPIO83_MMC_IRQ,
293         .gpio_card_ro           = -1,
294         .gpio_power             = GPIO105_MMC_POWER,
295         .gpio_power_invert      = 1,
296 };
297
298 static void __init cmx270_init_mmc(void)
299 {
300         pxa_set_mci_info(&cmx270_mci_platform_data);
301 }
302 #else
303 static inline void cmx270_init_mmc(void) {}
304 #endif
305
306 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
307 static struct pxa2xx_spi_master cm_x270_spi_info = {
308         .num_chipselect = 1,
309         .enable_dma     = 1,
310 };
311
312 static struct pxa2xx_spi_chip cm_x270_libertas_chip = {
313         .rx_threshold   = 1,
314         .tx_threshold   = 1,
315         .timeout        = 1000,
316         .gpio_cs        = 14,
317 };
318
319 static unsigned long cm_x270_libertas_pin_config[] = {
320         /* SSP2 */
321         GPIO19_SSP2_SCLK,
322         GPIO14_GPIO,
323         GPIO87_SSP2_TXD,
324         GPIO88_SSP2_RXD,
325
326 };
327
328 static int cm_x270_libertas_setup(struct spi_device *spi)
329 {
330         int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
331         if (err)
332                 return err;
333
334         err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
335         if (err)
336                 goto err_free_strap;
337
338         err = gpio_direction_output(GPIO102_WLAN_RST, 0);
339         if (err)
340                 goto err_free_strap;
341         msleep(100);
342
343         err = gpio_direction_output(GPIO19_WLAN_STRAP, 1);
344         if (err)
345                 goto err_free_strap;
346         msleep(100);
347
348         pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config));
349
350         gpio_set_value(GPIO102_WLAN_RST, 1);
351         msleep(100);
352
353         spi->bits_per_word = 16;
354         spi_setup(spi);
355
356         return 0;
357
358 err_free_strap:
359         gpio_free(GPIO19_WLAN_STRAP);
360
361         return err;
362 }
363
364 static int cm_x270_libertas_teardown(struct spi_device *spi)
365 {
366         gpio_set_value(GPIO102_WLAN_RST, 0);
367         gpio_free(GPIO102_WLAN_RST);
368         gpio_free(GPIO19_WLAN_STRAP);
369
370         return 0;
371 }
372
373 struct libertas_spi_platform_data cm_x270_libertas_pdata = {
374         .use_dummy_writes       = 1,
375         .setup                  = cm_x270_libertas_setup,
376         .teardown               = cm_x270_libertas_teardown,
377 };
378
379 static struct spi_board_info cm_x270_spi_devices[] __initdata = {
380         {
381                 .modalias               = "libertas_spi",
382                 .max_speed_hz           = 13000000,
383                 .bus_num                = 2,
384                 .irq                    = gpio_to_irq(95),
385                 .chip_select            = 0,
386                 .controller_data        = &cm_x270_libertas_chip,
387                 .platform_data          = &cm_x270_libertas_pdata,
388         },
389 };
390
391 static void __init cmx270_init_spi(void)
392 {
393         pxa2xx_set_spi_info(2, &cm_x270_spi_info);
394         spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices));
395 }
396 #else
397 static inline void cmx270_init_spi(void) {}
398 #endif
399
400 void __init cmx270_init(void)
401 {
402         pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
403
404 #ifdef CONFIG_PM
405         pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
406 #endif
407
408         cmx270_init_rtc();
409         cmx270_init_mmc();
410         cmx270_init_ohci();
411         cmx270_init_2700G();
412         cmx270_init_spi();
413 }