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[ARM] pxa: register Power I2C device only when necessary
[deliverable/linux.git] / arch / arm / mach-pxa / cm-x300.c
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cf75d8d2
MR		 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>
cf75d8d2
MR		 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
51static 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
141#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
142static struct resource dm9000_resources[] = {
143 [0] = {
144 .start = CM_X300_ETH_PHYS,
145 .end = CM_X300_ETH_PHYS + 0x3,
146 .flags = IORESOURCE_MEM,
147 },
148 [1] = {
149 .start = CM_X300_ETH_PHYS + 0x4,
150 .end = CM_X300_ETH_PHYS + 0x4 + 500,
151 .flags = IORESOURCE_MEM,
152 },
153 [2] = {
154 .start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
155 .end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
156 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
157 }
158};
159
160static struct dm9000_plat_data cm_x300_dm9000_platdata = {
161 .flags = DM9000_PLATF_16BITONLY,
162};
163
164static struct platform_device dm9000_device = {
165 .name = "dm9000",
166 .id = 0,
167 .num_resources = ARRAY_SIZE(dm9000_resources),
168 .resource = dm9000_resources,
169 .dev = {
170 .platform_data = &cm_x300_dm9000_platdata,
171 }
172
173};
174
175static void __init cm_x300_init_dm9000(void)
176{
177 platform_device_register(&dm9000_device);
178}
179#else
180static inline void cm_x300_init_dm9000(void) {}
181#endif
182
183#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
184static struct pxafb_mode_info cm_x300_lcd_modes[] = {
185 [0] = {
186 .pixclock = 38000,
187 .bpp = 16,
188 .xres = 480,
189 .yres = 640,
190 .hsync_len = 8,
191 .vsync_len = 2,
192 .left_margin = 8,
193 .upper_margin = 0,
194 .right_margin = 24,
195 .lower_margin = 4,
196 .cmap_greyscale = 0,
197 },
198 [1] = {
199 .pixclock = 153800,
200 .bpp = 16,
201 .xres = 240,
202 .yres = 320,
203 .hsync_len = 8,
204 .vsync_len = 2,
205 .left_margin = 8,
206 .upper_margin = 2,
207 .right_margin = 88,
208 .lower_margin = 2,
209 .cmap_greyscale = 0,
210 },
211};
212
213static struct pxafb_mach_info cm_x300_lcd = {
214 .modes = cm_x300_lcd_modes,
215 .num_modes = 2,
216 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
217};
218
219static void __init cm_x300_init_lcd(void)
220{
221 set_pxa_fb_info(&cm_x300_lcd);
222}
223#else
224static inline void cm_x300_init_lcd(void) {}
225#endif
226
227#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
228static struct mtd_partition cm_x300_nand_partitions[] = {
229 [0] = {
230 .name = "OBM",
231 .offset = 0,
232 .size = SZ_256K,
233 .mask_flags = MTD_WRITEABLE, /* force read-only */
234 },
235 [1] = {
236 .name = "U-Boot",
237 .offset = MTDPART_OFS_APPEND,
238 .size = SZ_256K,
239 .mask_flags = MTD_WRITEABLE, /* force read-only */
240 },
241 [2] = {
242 .name = "Environment",
243 .offset = MTDPART_OFS_APPEND,
244 .size = SZ_256K,
245 },
246 [3] = {
247 .name = "reserved",
248 .offset = MTDPART_OFS_APPEND,
249 .size = SZ_256K + SZ_1M,
250 .mask_flags = MTD_WRITEABLE, /* force read-only */
251 },
252 [4] = {
253 .name = "kernel",
254 .offset = MTDPART_OFS_APPEND,
255 .size = SZ_4M,
256 },
257 [5] = {
258 .name = "fs",
259 .offset = MTDPART_OFS_APPEND,
260 .size = MTDPART_SIZ_FULL,
261 },
262};
263
264static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
265 .enable_arbiter = 1,
266 .parts = cm_x300_nand_partitions,
267 .nr_parts = ARRAY_SIZE(cm_x300_nand_partitions),
268};
269
270static void __init cm_x300_init_nand(void)
271{
272 pxa3xx_set_nand_info(&cm_x300_nand_info);
273}
274#else
275static inline void cm_x300_init_nand(void) {}
276#endif
277
278#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
279/* The first MMC slot of CM-X300 is hardwired to Libertas card and has
280 no detection/ro pins */
281static int cm_x300_mci_init(struct device *dev,
282 irq_handler_t cm_x300_detect_int,
283 void *data)
284{
285 return 0;
286}
287
288static void cm_x300_mci_exit(struct device *dev, void *data)
289{
290}
291
292static struct pxamci_platform_data cm_x300_mci_platform_data = {
293 .detect_delay = 20,
294 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
295 .init = cm_x300_mci_init,
296 .exit = cm_x300_mci_exit,
297};
298
299static int cm_x300_mci2_ro(struct device *dev)
300{
301 return gpio_get_value(GPIO85_MMC2_WP);
302}
303
304static int cm_x300_mci2_init(struct device *dev,
305 irq_handler_t cm_x300_detect_int,
306 void *data)
307{
308 int err;
309
310 /*
311 * setup GPIO for CM-X300 MMC controller
312 */
313 err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
314 if (err)
315 goto err_request_cd;
316 gpio_direction_input(GPIO82_MMC2_IRQ);
317
318 err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
319 if (err)
320 goto err_request_wp;
321 gpio_direction_input(GPIO85_MMC2_WP);
322
323 err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
324 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
325 "MMC card detect", data);
326 if (err) {
327 printk(KERN_ERR "%s: MMC/SD/SDIO: "
328 "can't request card detect IRQ\n", __func__);
329 goto err_request_irq;
330 }
331
332 return 0;
333
334err_request_irq:
335 gpio_free(GPIO85_MMC2_WP);
336err_request_wp:
337 gpio_free(GPIO82_MMC2_IRQ);
338err_request_cd:
339 return err;
340}
341
342static void cm_x300_mci2_exit(struct device *dev, void *data)
343{
344 free_irq(CM_X300_MMC2_IRQ, data);
345 gpio_free(GPIO82_MMC2_IRQ);
346 gpio_free(GPIO85_MMC2_WP);
347}
348
349static struct pxamci_platform_data cm_x300_mci2_platform_data = {
350 .detect_delay = 20,
351 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
352 .init = cm_x300_mci2_init,
353 .exit = cm_x300_mci2_exit,
354 .get_ro = cm_x300_mci2_ro,
355};
356
357static void __init cm_x300_init_mmc(void)
358{
359 pxa_set_mci_info(&cm_x300_mci_platform_data);
360 pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
361}
362#else
363static inline void cm_x300_init_mmc(void) {}
364#endif
365
366#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
cf75d8d2
MR		 367static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
368 .port_mode = PMM_PERPORT_MODE,
097b5334 369 .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
cf75d8d2 370};
097b5334 371
cf75d8d2
MR		 372static void __init cm_x300_init_ohci(void)
373{
374 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
375}
376#else
377static inline void cm_x300_init_ohci(void) {}
378#endif
379
380#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
381static struct gpio_led cm_x300_leds[] = {
382 [0] = {
383 .name = "cm-x300:green",
384 .default_trigger = "heartbeat",
385 .gpio = 79,
386 .active_low = 1,
387 },
388};
389
390static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
391 .num_leds = ARRAY_SIZE(cm_x300_leds),
392 .leds = cm_x300_leds,
393};
394
395static struct platform_device cm_x300_led_device = {
396 .name = "leds-gpio",
397 .id = -1,
398 .dev = {
399 .platform_data = &cm_x300_gpio_led_pdata,
400 },
401};
402
403static void __init cm_x300_init_leds(void)
404{
405 platform_device_register(&cm_x300_led_device);
406}
407#else
408static inline void cm_x300_init_leds(void) {}
409#endif
410
411#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
412/* PCA9555 */
413static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
414 .gpio_base = 128,
415};
416
417static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
418 .gpio_base = 144,
419};
420
421static struct i2c_board_info cm_x300_gpio_ext_info[] = {
422 [0] = {
423 I2C_BOARD_INFO("pca9555", 0x24),
424 .platform_data = &cm_x300_gpio_ext_pdata_0,
425 },
426 [1] = {
427 I2C_BOARD_INFO("pca9555", 0x25),
428 .platform_data = &cm_x300_gpio_ext_pdata_1,
429 },
430};
431
432static void __init cm_x300_init_i2c(void)
433{
434 pxa_set_i2c_info(NULL);
435 i2c_register_board_info(0, cm_x300_gpio_ext_info,
436 ARRAY_SIZE(cm_x300_gpio_ext_info));
437}
438#else
439static inline void cm_x300_init_i2c(void) {}
440#endif
441
442static void __init cm_x300_init(void)
443{
444 /* board-processor specific GPIO initialization */
445 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
446
447 cm_x300_init_dm9000();
448 cm_x300_init_lcd();
449 cm_x300_init_ohci();
450 cm_x300_init_mmc();
451 cm_x300_init_nand();
452 cm_x300_init_leds();
453 cm_x300_init_i2c();
454}
455
456MACHINE_START(CM_X300, "CM-X300 module")
457 .phys_io = 0x40000000,
458 .boot_params = 0xa0000100,
459 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
460 .map_io = pxa_map_io,
461 .init_irq = pxa3xx_init_irq,
462 .timer = &pxa_timer,
463 .init_machine = cm_x300_init,
464MACHINE_END
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