[ARM] pxa: factor pxamci gpio handling
[linux-2.6.git] / 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 #include <linux/rtc-v3020.h>
25
26 #include <linux/i2c.h>
27 #include <linux/i2c/pca953x.h>
28
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/setup.h>
32
33 #include <mach/pxa300.h>
34 #include <mach/pxafb.h>
35 #include <mach/mmc.h>
36 #include <mach/ohci.h>
37 #include <plat/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 #define GPIO95_RTC_CS           (95)
52 #define GPIO96_RTC_WR           (96)
53 #define GPIO97_RTC_RD           (97)
54 #define GPIO98_RTC_IO           (98)
55
56 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
57         /* LCD */
58         GPIO54_LCD_LDD_0,
59         GPIO55_LCD_LDD_1,
60         GPIO56_LCD_LDD_2,
61         GPIO57_LCD_LDD_3,
62         GPIO58_LCD_LDD_4,
63         GPIO59_LCD_LDD_5,
64         GPIO60_LCD_LDD_6,
65         GPIO61_LCD_LDD_7,
66         GPIO62_LCD_LDD_8,
67         GPIO63_LCD_LDD_9,
68         GPIO64_LCD_LDD_10,
69         GPIO65_LCD_LDD_11,
70         GPIO66_LCD_LDD_12,
71         GPIO67_LCD_LDD_13,
72         GPIO68_LCD_LDD_14,
73         GPIO69_LCD_LDD_15,
74         GPIO72_LCD_FCLK,
75         GPIO73_LCD_LCLK,
76         GPIO74_LCD_PCLK,
77         GPIO75_LCD_BIAS,
78
79         /* BTUART */
80         GPIO111_UART2_RTS,
81         GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
82         GPIO113_UART2_TXD,
83         GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
84
85         /* STUART */
86         GPIO109_UART3_TXD,
87         GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
88
89         /* AC97 */
90         GPIO23_AC97_nACRESET,
91         GPIO24_AC97_SYSCLK,
92         GPIO29_AC97_BITCLK,
93         GPIO25_AC97_SDATA_IN_0,
94         GPIO27_AC97_SDATA_OUT,
95         GPIO28_AC97_SYNC,
96
97         /* Keypad */
98         GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
99         GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
100         GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
101         GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
102         GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
103         GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
104         GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
105         GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
106         GPIO121_KP_MKOUT_0,
107         GPIO122_KP_MKOUT_1,
108         GPIO123_KP_MKOUT_2,
109         GPIO124_KP_MKOUT_3,
110         GPIO125_KP_MKOUT_4,
111         GPIO4_2_KP_MKOUT_5,
112
113         /* MMC1 */
114         GPIO3_MMC1_DAT0,
115         GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
116         GPIO5_MMC1_DAT2,
117         GPIO6_MMC1_DAT3,
118         GPIO7_MMC1_CLK,
119         GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
120
121         /* MMC2 */
122         GPIO9_MMC2_DAT0,
123         GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
124         GPIO11_MMC2_DAT2,
125         GPIO12_MMC2_DAT3,
126         GPIO13_MMC2_CLK,
127         GPIO14_MMC2_CMD,
128
129         /* FFUART */
130         GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
131         GPIO31_UART1_TXD,
132         GPIO32_UART1_CTS,
133         GPIO37_UART1_RTS,
134         GPIO33_UART1_DCD,
135         GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
136         GPIO35_UART1_RI,
137         GPIO36_UART1_DTR,
138
139         /* GPIOs */
140         GPIO79_GPIO,                    /* LED */
141         GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
142         GPIO85_GPIO,                    /* MMC WP */
143         GPIO99_GPIO,                    /* Ethernet IRQ */
144
145         /* RTC GPIOs */
146         GPIO95_GPIO,                    /* RTC CS */
147         GPIO96_GPIO,                    /* RTC WR */
148         GPIO97_GPIO,                    /* RTC RD */
149         GPIO98_GPIO,                    /* RTC IO */
150
151         /* Standard I2C */
152         GPIO21_I2C_SCL,
153         GPIO22_I2C_SDA,
154 };
155
156 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
157 static struct resource dm9000_resources[] = {
158         [0] = {
159                 .start  = CM_X300_ETH_PHYS,
160                 .end    = CM_X300_ETH_PHYS + 0x3,
161                 .flags  = IORESOURCE_MEM,
162         },
163         [1] = {
164                 .start  = CM_X300_ETH_PHYS + 0x4,
165                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
166                 .flags  = IORESOURCE_MEM,
167         },
168         [2] = {
169                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
170                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
171                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
172         }
173 };
174
175 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
176         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
177 };
178
179 static struct platform_device dm9000_device = {
180         .name           = "dm9000",
181         .id             = 0,
182         .num_resources  = ARRAY_SIZE(dm9000_resources),
183         .resource       = dm9000_resources,
184         .dev            = {
185                 .platform_data = &cm_x300_dm9000_platdata,
186         }
187
188 };
189
190 static void __init cm_x300_init_dm9000(void)
191 {
192         platform_device_register(&dm9000_device);
193 }
194 #else
195 static inline void cm_x300_init_dm9000(void) {}
196 #endif
197
198 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
199 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
200         [0] = {
201                 .pixclock       = 38000,
202                 .bpp            = 16,
203                 .xres           = 480,
204                 .yres           = 640,
205                 .hsync_len      = 8,
206                 .vsync_len      = 2,
207                 .left_margin    = 8,
208                 .upper_margin   = 0,
209                 .right_margin   = 24,
210                 .lower_margin   = 4,
211                 .cmap_greyscale = 0,
212         },
213         [1] = {
214                 .pixclock       = 153800,
215                 .bpp            = 16,
216                 .xres           = 240,
217                 .yres           = 320,
218                 .hsync_len      = 8,
219                 .vsync_len      = 2,
220                 .left_margin    = 8,
221                 .upper_margin   = 2,
222                 .right_margin   = 88,
223                 .lower_margin   = 2,
224                 .cmap_greyscale = 0,
225         },
226 };
227
228 static struct pxafb_mach_info cm_x300_lcd = {
229         .modes                  = cm_x300_lcd_modes,
230         .num_modes              = 2,
231         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
232 };
233
234 static void __init cm_x300_init_lcd(void)
235 {
236         set_pxa_fb_info(&cm_x300_lcd);
237 }
238 #else
239 static inline void cm_x300_init_lcd(void) {}
240 #endif
241
242 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
243 static struct mtd_partition cm_x300_nand_partitions[] = {
244         [0] = {
245                 .name        = "OBM",
246                 .offset      = 0,
247                 .size        = SZ_256K,
248                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
249         },
250         [1] = {
251                 .name        = "U-Boot",
252                 .offset      = MTDPART_OFS_APPEND,
253                 .size        = SZ_256K,
254                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
255         },
256         [2] = {
257                 .name        = "Environment",
258                 .offset      = MTDPART_OFS_APPEND,
259                 .size        = SZ_256K,
260         },
261         [3] = {
262                 .name        = "reserved",
263                 .offset      = MTDPART_OFS_APPEND,
264                 .size        = SZ_256K + SZ_1M,
265                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
266         },
267         [4] = {
268                 .name        = "kernel",
269                 .offset      = MTDPART_OFS_APPEND,
270                 .size        = SZ_4M,
271         },
272         [5] = {
273                 .name        = "fs",
274                 .offset      = MTDPART_OFS_APPEND,
275                 .size        = MTDPART_SIZ_FULL,
276         },
277 };
278
279 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
280         .enable_arbiter = 1,
281         .keep_config    = 1,
282         .parts          = cm_x300_nand_partitions,
283         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
284 };
285
286 static void __init cm_x300_init_nand(void)
287 {
288         pxa3xx_set_nand_info(&cm_x300_nand_info);
289 }
290 #else
291 static inline void cm_x300_init_nand(void) {}
292 #endif
293
294 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
295 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
296    no detection/ro pins */
297 static int cm_x300_mci_init(struct device *dev,
298                             irq_handler_t cm_x300_detect_int,
299                             void *data)
300 {
301         return 0;
302 }
303
304 static void cm_x300_mci_exit(struct device *dev, void *data)
305 {
306 }
307
308 static struct pxamci_platform_data cm_x300_mci_platform_data = {
309         .detect_delay           = 20,
310         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
311         .init                   = cm_x300_mci_init,
312         .exit                   = cm_x300_mci_exit,
313         .gpio_card_detect       = -1,
314         .gpio_card_ro           = -1,
315         .gpio_power             = -1,
316 };
317
318 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
319         .detect_delay           = 20,
320         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
321         .gpio_card_detect       = GPIO82_MMC2_IRQ,
322         .gpio_card_ro           = GPIO85_MMC2_WP,
323         .gpio_power             = -1,
324 };
325
326 static void __init cm_x300_init_mmc(void)
327 {
328         pxa_set_mci_info(&cm_x300_mci_platform_data);
329         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
330 }
331 #else
332 static inline void cm_x300_init_mmc(void) {}
333 #endif
334
335 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
336 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
337         .port_mode      = PMM_PERPORT_MODE,
338         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
339 };
340
341 static void __init cm_x300_init_ohci(void)
342 {
343         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
344 }
345 #else
346 static inline void cm_x300_init_ohci(void) {}
347 #endif
348
349 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
350 static struct gpio_led cm_x300_leds[] = {
351         [0] = {
352                 .name = "cm-x300:green",
353                 .default_trigger = "heartbeat",
354                 .gpio = 79,
355                 .active_low = 1,
356         },
357 };
358
359 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
360         .num_leds = ARRAY_SIZE(cm_x300_leds),
361         .leds = cm_x300_leds,
362 };
363
364 static struct platform_device cm_x300_led_device = {
365         .name           = "leds-gpio",
366         .id             = -1,
367         .dev            = {
368                 .platform_data = &cm_x300_gpio_led_pdata,
369         },
370 };
371
372 static void __init cm_x300_init_leds(void)
373 {
374         platform_device_register(&cm_x300_led_device);
375 }
376 #else
377 static inline void cm_x300_init_leds(void) {}
378 #endif
379
380 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
381 /* PCA9555 */
382 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
383         .gpio_base = 128,
384 };
385
386 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
387         .gpio_base = 144,
388 };
389
390 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
391         [0] = {
392                 I2C_BOARD_INFO("pca9555", 0x24),
393                 .platform_data = &cm_x300_gpio_ext_pdata_0,
394         },
395         [1] = {
396                 I2C_BOARD_INFO("pca9555", 0x25),
397                 .platform_data = &cm_x300_gpio_ext_pdata_1,
398         },
399 };
400
401 static void __init cm_x300_init_i2c(void)
402 {
403         pxa_set_i2c_info(NULL);
404         i2c_register_board_info(0, cm_x300_gpio_ext_info,
405                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
406 }
407 #else
408 static inline void cm_x300_init_i2c(void) {}
409 #endif
410
411 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
412 struct v3020_platform_data cm_x300_v3020_pdata = {
413         .use_gpio       = 1,
414         .gpio_cs        = GPIO95_RTC_CS,
415         .gpio_wr        = GPIO96_RTC_WR,
416         .gpio_rd        = GPIO97_RTC_RD,
417         .gpio_io        = GPIO98_RTC_IO,
418 };
419
420 static struct platform_device cm_x300_rtc_device = {
421         .name           = "v3020",
422         .id             = -1,
423         .dev            = {
424                 .platform_data = &cm_x300_v3020_pdata,
425         }
426 };
427
428 static void __init cm_x300_init_rtc(void)
429 {
430         platform_device_register(&cm_x300_rtc_device);
431 }
432 #else
433 static inline void cm_x300_init_rtc(void) {}
434 #endif
435
436 static void __init cm_x300_init(void)
437 {
438         /* board-processor specific GPIO initialization */
439         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
440
441         cm_x300_init_dm9000();
442         cm_x300_init_lcd();
443         cm_x300_init_ohci();
444         cm_x300_init_mmc();
445         cm_x300_init_nand();
446         cm_x300_init_leds();
447         cm_x300_init_i2c();
448         cm_x300_init_rtc();
449 }
450
451 static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags,
452                                  char **cmdline, struct meminfo *mi)
453 {
454         mi->nr_banks = 2;
455         mi->bank[0].start = 0xa0000000;
456         mi->bank[0].node = 0;
457         mi->bank[0].size = (64*1024*1024);
458         mi->bank[1].start = 0xc0000000;
459         mi->bank[1].node = 0;
460         mi->bank[1].size = (64*1024*1024);
461 }
462
463 MACHINE_START(CM_X300, "CM-X300 module")
464         .phys_io        = 0x40000000,
465         .boot_params    = 0xa0000100,
466         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
467         .map_io         = pxa_map_io,
468         .init_irq       = pxa3xx_init_irq,
469         .timer          = &pxa_timer,
470         .init_machine   = cm_x300_init,
471         .fixup          = cm_x300_fixup,
472 MACHINE_END