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
cm_x300_init_dm9000(void)179 static void __init cm_x300_init_dm9000(void)
180 {
181 platform_device_register(&dm9000_device);
182 }
183 #else
cm_x300_init_dm9000(void)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
cm_x300_init_lcd(void)223 static void __init cm_x300_init_lcd(void)
224 {
225 set_pxa_fb_info(&cm_x300_lcd);
226 }
227 #else
cm_x300_init_lcd(void)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
cm_x300_init_nand(void)274 static void __init cm_x300_init_nand(void)
275 {
276 pxa3xx_set_nand_info(&cm_x300_nand_info);
277 }
278 #else
cm_x300_init_nand(void)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 */
cm_x300_mci_init(struct device * dev,irq_handler_t cm_x300_detect_int,void * data)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
cm_x300_mci_exit(struct device * dev,void * data)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
cm_x300_mci2_ro(struct device * dev)303 static int cm_x300_mci2_ro(struct device *dev)
304 {
305 return gpio_get_value(GPIO85_MMC2_WP);
306 }
307
cm_x300_mci2_init(struct device * dev,irq_handler_t cm_x300_detect_int,void * data)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
cm_x300_mci2_exit(struct device * dev,void * data)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
cm_x300_init_mmc(void)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
cm_x300_init_mmc(void)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
cm_x300_init_ohci(void)376 static void __init cm_x300_init_ohci(void)
377 {
378 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
379 }
380 #else
cm_x300_init_ohci(void)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
cm_x300_init_leds(void)407 static void __init cm_x300_init_leds(void)
408 {
409 platform_device_register(&cm_x300_led_device);
410 }
411 #else
cm_x300_init_leds(void)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
cm_x300_init_i2c(void)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
cm_x300_init_i2c(void)443 static inline void cm_x300_init_i2c(void) {}
444 #endif
445
cm_x300_init(void)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
469