Merge branches 'sched/clock', 'sched/cleanups' and 'linus' into sched/urgent
[linux-2.6] / arch / arm / mach-pxa / cm-x300.c
1 /*
2  * linux/arch/arm/mach-pxa/cm-x300.c
3  *
4  * Support for the CompuLab CM-X300 modules
5  *
6  * Copyright (C) 2008 CompuLab Ltd.
7  *
8  * Mike Rapoport <mike@compulab.co.il>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/interrupt.h>
18 #include <linux/init.h>
19 #include <linux/platform_device.h>
20
21 #include <linux/gpio.h>
22 #include <linux/dm9000.h>
23 #include <linux/leds.h>
24
25 #include <linux/i2c.h>
26 #include <linux/i2c/pca953x.h>
27
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30
31 #include <mach/mfp-pxa300.h>
32
33 #include <mach/hardware.h>
34 #include <mach/pxafb.h>
35 #include <mach/mmc.h>
36 #include <mach/ohci.h>
37 #include <mach/i2c.h>
38 #include <mach/pxa3xx_nand.h>
39
40 #include <asm/mach/map.h>
41
42 #include "generic.h"
43
44 #define CM_X300_ETH_PHYS        0x08000010
45
46 #define GPIO82_MMC2_IRQ         (82)
47 #define GPIO85_MMC2_WP          (85)
48
49 #define CM_X300_MMC2_IRQ        IRQ_GPIO(GPIO82_MMC2_IRQ)
50
51 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
52         /* LCD */
53         GPIO54_LCD_LDD_0,
54         GPIO55_LCD_LDD_1,
55         GPIO56_LCD_LDD_2,
56         GPIO57_LCD_LDD_3,
57         GPIO58_LCD_LDD_4,
58         GPIO59_LCD_LDD_5,
59         GPIO60_LCD_LDD_6,
60         GPIO61_LCD_LDD_7,
61         GPIO62_LCD_LDD_8,
62         GPIO63_LCD_LDD_9,
63         GPIO64_LCD_LDD_10,
64         GPIO65_LCD_LDD_11,
65         GPIO66_LCD_LDD_12,
66         GPIO67_LCD_LDD_13,
67         GPIO68_LCD_LDD_14,
68         GPIO69_LCD_LDD_15,
69         GPIO72_LCD_FCLK,
70         GPIO73_LCD_LCLK,
71         GPIO74_LCD_PCLK,
72         GPIO75_LCD_BIAS,
73
74         /* BTUART */
75         GPIO111_UART2_RTS,
76         GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
77         GPIO113_UART2_TXD,
78         GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
79
80         /* STUART */
81         GPIO109_UART3_TXD,
82         GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
83
84         /* AC97 */
85         GPIO23_AC97_nACRESET,
86         GPIO24_AC97_SYSCLK,
87         GPIO29_AC97_BITCLK,
88         GPIO25_AC97_SDATA_IN_0,
89         GPIO27_AC97_SDATA_OUT,
90         GPIO28_AC97_SYNC,
91
92         /* Keypad */
93         GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
94         GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
95         GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
96         GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
97         GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
98         GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
99         GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
100         GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
101         GPIO121_KP_MKOUT_0,
102         GPIO122_KP_MKOUT_1,
103         GPIO123_KP_MKOUT_2,
104         GPIO124_KP_MKOUT_3,
105         GPIO125_KP_MKOUT_4,
106         GPIO4_2_KP_MKOUT_5,
107
108         /* MMC1 */
109         GPIO3_MMC1_DAT0,
110         GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
111         GPIO5_MMC1_DAT2,
112         GPIO6_MMC1_DAT3,
113         GPIO7_MMC1_CLK,
114         GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
115
116         /* MMC2 */
117         GPIO9_MMC2_DAT0,
118         GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
119         GPIO11_MMC2_DAT2,
120         GPIO12_MMC2_DAT3,
121         GPIO13_MMC2_CLK,
122         GPIO14_MMC2_CMD,
123
124         /* FFUART */
125         GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
126         GPIO31_UART1_TXD,
127         GPIO32_UART1_CTS,
128         GPIO37_UART1_RTS,
129         GPIO33_UART1_DCD,
130         GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
131         GPIO35_UART1_RI,
132         GPIO36_UART1_DTR,
133
134         /* GPIOs */
135         GPIO79_GPIO,                    /* LED */
136         GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
137         GPIO85_GPIO,                    /* MMC WP */
138         GPIO99_GPIO,                    /* Ethernet IRQ */
139
140         /* Standard I2C */
141         GPIO21_I2C_SCL,
142         GPIO22_I2C_SDA,
143 };
144
145 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
146 static struct resource dm9000_resources[] = {
147         [0] = {
148                 .start  = CM_X300_ETH_PHYS,
149                 .end    = CM_X300_ETH_PHYS + 0x3,
150                 .flags  = IORESOURCE_MEM,
151         },
152         [1] = {
153                 .start  = CM_X300_ETH_PHYS + 0x4,
154                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
155                 .flags  = IORESOURCE_MEM,
156         },
157         [2] = {
158                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
159                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
160                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
161         }
162 };
163
164 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
165         .flags          = DM9000_PLATF_16BITONLY,
166 };
167
168 static struct platform_device dm9000_device = {
169         .name           = "dm9000",
170         .id             = 0,
171         .num_resources  = ARRAY_SIZE(dm9000_resources),
172         .resource       = dm9000_resources,
173         .dev            = {
174                 .platform_data = &cm_x300_dm9000_platdata,
175         }
176
177 };
178
179 static void __init cm_x300_init_dm9000(void)
180 {
181         platform_device_register(&dm9000_device);
182 }
183 #else
184 static inline void cm_x300_init_dm9000(void) {}
185 #endif
186
187 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
188 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
189         [0] = {
190                 .pixclock       = 38000,
191                 .bpp            = 16,
192                 .xres           = 480,
193                 .yres           = 640,
194                 .hsync_len      = 8,
195                 .vsync_len      = 2,
196                 .left_margin    = 8,
197                 .upper_margin   = 0,
198                 .right_margin   = 24,
199                 .lower_margin   = 4,
200                 .cmap_greyscale = 0,
201         },
202         [1] = {
203                 .pixclock       = 153800,
204                 .bpp            = 16,
205                 .xres           = 240,
206                 .yres           = 320,
207                 .hsync_len      = 8,
208                 .vsync_len      = 2,
209                 .left_margin    = 8,
210                 .upper_margin   = 2,
211                 .right_margin   = 88,
212                 .lower_margin   = 2,
213                 .cmap_greyscale = 0,
214         },
215 };
216
217 static struct pxafb_mach_info cm_x300_lcd = {
218         .modes                  = cm_x300_lcd_modes,
219         .num_modes              = 2,
220         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
221 };
222
223 static void __init cm_x300_init_lcd(void)
224 {
225         set_pxa_fb_info(&cm_x300_lcd);
226 }
227 #else
228 static inline void cm_x300_init_lcd(void) {}
229 #endif
230
231 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
232 static struct mtd_partition cm_x300_nand_partitions[] = {
233         [0] = {
234                 .name        = "OBM",
235                 .offset      = 0,
236                 .size        = SZ_256K,
237                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
238         },
239         [1] = {
240                 .name        = "U-Boot",
241                 .offset      = MTDPART_OFS_APPEND,
242                 .size        = SZ_256K,
243                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
244         },
245         [2] = {
246                 .name        = "Environment",
247                 .offset      = MTDPART_OFS_APPEND,
248                 .size        = SZ_256K,
249         },
250         [3] = {
251                 .name        = "reserved",
252                 .offset      = MTDPART_OFS_APPEND,
253                 .size        = SZ_256K + SZ_1M,
254                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
255         },
256         [4] = {
257                 .name        = "kernel",
258                 .offset      = MTDPART_OFS_APPEND,
259                 .size        = SZ_4M,
260         },
261         [5] = {
262                 .name        = "fs",
263                 .offset      = MTDPART_OFS_APPEND,
264                 .size        = MTDPART_SIZ_FULL,
265         },
266 };
267
268 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
269         .enable_arbiter = 1,
270         .parts          = cm_x300_nand_partitions,
271         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
272 };
273
274 static void __init cm_x300_init_nand(void)
275 {
276         pxa3xx_set_nand_info(&cm_x300_nand_info);
277 }
278 #else
279 static inline void cm_x300_init_nand(void) {}
280 #endif
281
282 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
283 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
284    no detection/ro pins */
285 static int cm_x300_mci_init(struct device *dev,
286                             irq_handler_t cm_x300_detect_int,
287                             void *data)
288 {
289         return 0;
290 }
291
292 static void cm_x300_mci_exit(struct device *dev, void *data)
293 {
294 }
295
296 static struct pxamci_platform_data cm_x300_mci_platform_data = {
297         .detect_delay   = 20,
298         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
299         .init           = cm_x300_mci_init,
300         .exit           = cm_x300_mci_exit,
301 };
302
303 static int cm_x300_mci2_ro(struct device *dev)
304 {
305         return gpio_get_value(GPIO85_MMC2_WP);
306 }
307
308 static int cm_x300_mci2_init(struct device *dev,
309                              irq_handler_t cm_x300_detect_int,
310                              void *data)
311 {
312         int err;
313
314         /*
315          * setup GPIO for CM-X300 MMC controller
316          */
317         err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
318         if (err)
319                 goto err_request_cd;
320         gpio_direction_input(GPIO82_MMC2_IRQ);
321
322         err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
323         if (err)
324                 goto err_request_wp;
325         gpio_direction_input(GPIO85_MMC2_WP);
326
327         err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
328                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
329                           "MMC card detect", data);
330         if (err) {
331                 printk(KERN_ERR "%s: MMC/SD/SDIO: "
332                                 "can't request card detect IRQ\n", __func__);
333                 goto err_request_irq;
334         }
335
336         return 0;
337
338 err_request_irq:
339         gpio_free(GPIO85_MMC2_WP);
340 err_request_wp:
341         gpio_free(GPIO82_MMC2_IRQ);
342 err_request_cd:
343         return err;
344 }
345
346 static void cm_x300_mci2_exit(struct device *dev, void *data)
347 {
348         free_irq(CM_X300_MMC2_IRQ, data);
349         gpio_free(GPIO82_MMC2_IRQ);
350         gpio_free(GPIO85_MMC2_WP);
351 }
352
353 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
354         .detect_delay   = 20,
355         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
356         .init           = cm_x300_mci2_init,
357         .exit           = cm_x300_mci2_exit,
358         .get_ro         = cm_x300_mci2_ro,
359 };
360
361 static void __init cm_x300_init_mmc(void)
362 {
363         pxa_set_mci_info(&cm_x300_mci_platform_data);
364         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
365 }
366 #else
367 static inline void cm_x300_init_mmc(void) {}
368 #endif
369
370 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
371 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
372         .port_mode      = PMM_PERPORT_MODE,
373         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
374 };
375
376 static void __init cm_x300_init_ohci(void)
377 {
378         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
379 }
380 #else
381 static inline void cm_x300_init_ohci(void) {}
382 #endif
383
384 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
385 static struct gpio_led cm_x300_leds[] = {
386         [0] = {
387                 .name = "cm-x300:green",
388                 .default_trigger = "heartbeat",
389                 .gpio = 79,
390                 .active_low = 1,
391         },
392 };
393
394 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
395         .num_leds = ARRAY_SIZE(cm_x300_leds),
396         .leds = cm_x300_leds,
397 };
398
399 static struct platform_device cm_x300_led_device = {
400         .name           = "leds-gpio",
401         .id             = -1,
402         .dev            = {
403                 .platform_data = &cm_x300_gpio_led_pdata,
404         },
405 };
406
407 static void __init cm_x300_init_leds(void)
408 {
409         platform_device_register(&cm_x300_led_device);
410 }
411 #else
412 static inline void cm_x300_init_leds(void) {}
413 #endif
414
415 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
416 /* PCA9555 */
417 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
418         .gpio_base = 128,
419 };
420
421 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
422         .gpio_base = 144,
423 };
424
425 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
426         [0] = {
427                 I2C_BOARD_INFO("pca9555", 0x24),
428                 .platform_data = &cm_x300_gpio_ext_pdata_0,
429         },
430         [1] = {
431                 I2C_BOARD_INFO("pca9555", 0x25),
432                 .platform_data = &cm_x300_gpio_ext_pdata_1,
433         },
434 };
435
436 static void __init cm_x300_init_i2c(void)
437 {
438         pxa_set_i2c_info(NULL);
439         i2c_register_board_info(0, cm_x300_gpio_ext_info,
440                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
441 }
442 #else
443 static inline void cm_x300_init_i2c(void) {}
444 #endif
445
446 static void __init cm_x300_init(void)
447 {
448         /* board-processor specific GPIO initialization */
449         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
450
451         cm_x300_init_dm9000();
452         cm_x300_init_lcd();
453         cm_x300_init_ohci();
454         cm_x300_init_mmc();
455         cm_x300_init_nand();
456         cm_x300_init_leds();
457         cm_x300_init_i2c();
458 }
459
460 MACHINE_START(CM_X300, "CM-X300 module")
461         .phys_io        = 0x40000000,
462         .boot_params    = 0xa0000100,
463         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
464         .map_io         = pxa_map_io,
465         .init_irq       = pxa3xx_init_irq,
466         .timer          = &pxa_timer,
467         .init_machine   = cm_x300_init,
468 MACHINE_END