ARM: restart: pxa: use new restart hook
[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/irq.h>
14 #include <linux/gpio.h>
15 #include <linux/delay.h>
16
17 #include <linux/rtc-v3020.h>
18 #include <video/mbxfb.h>
19
20 #include <linux/spi/spi.h>
21 #include <linux/spi/pxa2xx_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
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
41 /* WLAN GPIOS */
42 #define GPIO19_WLAN_STRAP       (19)
43 #define GPIO102_WLAN_RST        (102)
44
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 */
73         GPIOxx_LCD_TFT_16BPP,
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 */
86         GPIO19_GPIO,    /* SSP2 clock is used as GPIO for Libertas pin-strap */
87         GPIO14_GPIO,
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 */
115         GPIO102_GPIO,                           /* WLAN reset */
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 */
124         GPIO95_GPIO,    /* WLAN interrupt */
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
156 static inline void cmx270_init_rtc(void) {}
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
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 };
204
205 static int cmx270_marathon_probe(struct fb_info *fb)
206 {
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));
217         return 0;
218 }
219
220 static int cmx270_marathon_remove(struct fb_info *fb)
221 {
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
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)
275 static struct pxaohci_platform_data cmx270_ohci_platform_data = {
276         .port_mode      = PMM_PERPORT_MODE,
277         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
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)
289 static struct pxamci_platform_data cmx270_mci_platform_data = {
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,
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
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
399 void __init cmx270_init(void)
400 {
401         pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
402
403 #ifdef CONFIG_PM
404         pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
405 #endif
406
407         cmx270_init_rtc();
408         cmx270_init_mmc();
409         cmx270_init_ohci();
410         cmx270_init_2700G();
411         cmx270_init_spi();
412 }