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eba2645a SS |
1 | /* |
2 | * board-overo.c (Gumstix Overo) | |
3 | * | |
4 | * Initial code: Steve Sakoman <steve@sakoman.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
18 | * 02110-1301 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <linux/clk.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/err.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/io.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/platform_device.h> | |
b07682b6 | 29 | #include <linux/i2c/twl.h> |
bb3b9d8e | 30 | #include <linux/regulator/machine.h> |
eba2645a SS |
31 | |
32 | #include <linux/mtd/mtd.h> | |
33 | #include <linux/mtd/nand.h> | |
34 | #include <linux/mtd/partitions.h> | |
35 | ||
36 | #include <asm/mach-types.h> | |
37 | #include <asm/mach/arch.h> | |
38 | #include <asm/mach/flash.h> | |
39 | #include <asm/mach/map.h> | |
40 | ||
ce491cf8 TL |
41 | #include <plat/board.h> |
42 | #include <plat/common.h> | |
eba2645a | 43 | #include <mach/gpio.h> |
ce491cf8 | 44 | #include <plat/gpmc.h> |
eba2645a | 45 | #include <mach/hardware.h> |
ce491cf8 | 46 | #include <plat/nand.h> |
ce491cf8 | 47 | #include <plat/usb.h> |
eba2645a | 48 | |
ca5742bd | 49 | #include "mux.h" |
2e12bd7e | 50 | #include "sdram-micron-mt46h32m32lf-6.h" |
d02a900b | 51 | #include "hsmmc.h" |
90c62bf0 | 52 | |
0d4d9ab0 TL |
53 | #define OVERO_GPIO_BT_XGATE 15 |
54 | #define OVERO_GPIO_W2W_NRESET 16 | |
6fd210a9 | 55 | #define OVERO_GPIO_PENDOWN 114 |
0d4d9ab0 TL |
56 | #define OVERO_GPIO_BT_NRESET 164 |
57 | #define OVERO_GPIO_USBH_CPEN 168 | |
58 | #define OVERO_GPIO_USBH_NRESET 183 | |
59 | ||
eba2645a SS |
60 | #define NAND_BLOCK_SIZE SZ_128K |
61 | #define GPMC_CS0_BASE 0x60 | |
62 | #define GPMC_CS_SIZE 0x30 | |
63 | ||
172ef275 SS |
64 | #define OVERO_SMSC911X_CS 5 |
65 | #define OVERO_SMSC911X_GPIO 176 | |
66 | ||
c6a81316 SS |
67 | #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \ |
68 | defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) | |
69 | ||
ce491cf8 | 70 | #include <plat/mcspi.h> |
c6a81316 SS |
71 | #include <linux/spi/spi.h> |
72 | #include <linux/spi/ads7846.h> | |
73 | ||
74 | static struct omap2_mcspi_device_config ads7846_mcspi_config = { | |
75 | .turbo_mode = 0, | |
76 | .single_channel = 1, /* 0: slave, 1: master */ | |
77 | }; | |
78 | ||
79 | static int ads7846_get_pendown_state(void) | |
80 | { | |
81 | return !gpio_get_value(OVERO_GPIO_PENDOWN); | |
82 | } | |
83 | ||
84 | static struct ads7846_platform_data ads7846_config = { | |
85 | .x_max = 0x0fff, | |
86 | .y_max = 0x0fff, | |
87 | .x_plate_ohms = 180, | |
88 | .pressure_max = 255, | |
89 | .debounce_max = 10, | |
90 | .debounce_tol = 3, | |
91 | .debounce_rep = 1, | |
92 | .get_pendown_state = ads7846_get_pendown_state, | |
93 | .keep_vref_on = 1, | |
94 | }; | |
95 | ||
96 | static struct spi_board_info overo_spi_board_info[] __initdata = { | |
97 | { | |
98 | .modalias = "ads7846", | |
99 | .bus_num = 1, | |
100 | .chip_select = 0, | |
101 | .max_speed_hz = 1500000, | |
102 | .controller_data = &ads7846_mcspi_config, | |
103 | .irq = OMAP_GPIO_IRQ(OVERO_GPIO_PENDOWN), | |
104 | .platform_data = &ads7846_config, | |
105 | } | |
106 | }; | |
107 | ||
108 | static void __init overo_ads7846_init(void) | |
109 | { | |
110 | if ((gpio_request(OVERO_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) && | |
111 | (gpio_direction_input(OVERO_GPIO_PENDOWN) == 0)) { | |
112 | gpio_export(OVERO_GPIO_PENDOWN, 0); | |
113 | } else { | |
114 | printk(KERN_ERR "could not obtain gpio for ADS7846_PENDOWN\n"); | |
115 | return; | |
116 | } | |
117 | ||
118 | spi_register_board_info(overo_spi_board_info, | |
119 | ARRAY_SIZE(overo_spi_board_info)); | |
120 | } | |
121 | ||
122 | #else | |
123 | static inline void __init overo_ads7846_init(void) { return; } | |
124 | #endif | |
125 | ||
172ef275 SS |
126 | #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) |
127 | ||
128 | #include <linux/smsc911x.h> | |
129 | ||
130 | static struct resource overo_smsc911x_resources[] = { | |
131 | { | |
132 | .name = "smsc911x-memory", | |
133 | .flags = IORESOURCE_MEM, | |
134 | }, | |
135 | { | |
136 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, | |
137 | }, | |
138 | }; | |
139 | ||
140 | static struct smsc911x_platform_config overo_smsc911x_config = { | |
141 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, | |
142 | .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, | |
143 | .flags = SMSC911X_USE_32BIT , | |
144 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
145 | }; | |
146 | ||
147 | static struct platform_device overo_smsc911x_device = { | |
148 | .name = "smsc911x", | |
149 | .id = -1, | |
150 | .num_resources = ARRAY_SIZE(overo_smsc911x_resources), | |
5032902c | 151 | .resource = overo_smsc911x_resources, |
172ef275 SS |
152 | .dev = { |
153 | .platform_data = &overo_smsc911x_config, | |
154 | }, | |
155 | }; | |
156 | ||
157 | static inline void __init overo_init_smsc911x(void) | |
158 | { | |
159 | unsigned long cs_mem_base; | |
160 | ||
161 | if (gpmc_cs_request(OVERO_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) { | |
162 | printk(KERN_ERR "Failed request for GPMC mem for smsc911x\n"); | |
163 | return; | |
164 | } | |
165 | ||
166 | overo_smsc911x_resources[0].start = cs_mem_base + 0x0; | |
167 | overo_smsc911x_resources[0].end = cs_mem_base + 0xff; | |
168 | ||
169 | if ((gpio_request(OVERO_SMSC911X_GPIO, "SMSC911X IRQ") == 0) && | |
170 | (gpio_direction_input(OVERO_SMSC911X_GPIO) == 0)) { | |
171 | gpio_export(OVERO_SMSC911X_GPIO, 0); | |
172 | } else { | |
173 | printk(KERN_ERR "could not obtain gpio for SMSC911X IRQ\n"); | |
174 | return; | |
175 | } | |
176 | ||
177 | overo_smsc911x_resources[1].start = OMAP_GPIO_IRQ(OVERO_SMSC911X_GPIO); | |
178 | overo_smsc911x_resources[1].end = 0; | |
179 | ||
180 | platform_device_register(&overo_smsc911x_device); | |
181 | } | |
182 | ||
183 | #else | |
184 | static inline void __init overo_init_smsc911x(void) { return; } | |
185 | #endif | |
186 | ||
eba2645a SS |
187 | static struct mtd_partition overo_nand_partitions[] = { |
188 | { | |
189 | .name = "xloader", | |
190 | .offset = 0, /* Offset = 0x00000 */ | |
191 | .size = 4 * NAND_BLOCK_SIZE, | |
192 | .mask_flags = MTD_WRITEABLE | |
193 | }, | |
194 | { | |
195 | .name = "uboot", | |
196 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ | |
197 | .size = 14 * NAND_BLOCK_SIZE, | |
198 | }, | |
199 | { | |
200 | .name = "uboot environment", | |
201 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */ | |
202 | .size = 2 * NAND_BLOCK_SIZE, | |
203 | }, | |
204 | { | |
205 | .name = "linux", | |
206 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ | |
207 | .size = 32 * NAND_BLOCK_SIZE, | |
208 | }, | |
209 | { | |
210 | .name = "rootfs", | |
211 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ | |
212 | .size = MTDPART_SIZ_FULL, | |
213 | }, | |
214 | }; | |
215 | ||
216 | static struct omap_nand_platform_data overo_nand_data = { | |
217 | .parts = overo_nand_partitions, | |
218 | .nr_parts = ARRAY_SIZE(overo_nand_partitions), | |
219 | .dma_channel = -1, /* disable DMA in OMAP NAND driver */ | |
220 | }; | |
221 | ||
222 | static struct resource overo_nand_resource = { | |
223 | .flags = IORESOURCE_MEM, | |
224 | }; | |
225 | ||
226 | static struct platform_device overo_nand_device = { | |
227 | .name = "omap2-nand", | |
228 | .id = -1, | |
229 | .dev = { | |
230 | .platform_data = &overo_nand_data, | |
231 | }, | |
232 | .num_resources = 1, | |
233 | .resource = &overo_nand_resource, | |
234 | }; | |
235 | ||
236 | ||
237 | static void __init overo_flash_init(void) | |
238 | { | |
239 | u8 cs = 0; | |
240 | u8 nandcs = GPMC_CS_NUM + 1; | |
241 | ||
242 | u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; | |
243 | ||
244 | /* find out the chip-select on which NAND exists */ | |
245 | while (cs < GPMC_CS_NUM) { | |
246 | u32 ret = 0; | |
247 | ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); | |
248 | ||
249 | if ((ret & 0xC00) == 0x800) { | |
250 | printk(KERN_INFO "Found NAND on CS%d\n", cs); | |
251 | if (nandcs > GPMC_CS_NUM) | |
252 | nandcs = cs; | |
253 | } | |
254 | cs++; | |
255 | } | |
256 | ||
257 | if (nandcs > GPMC_CS_NUM) { | |
258 | printk(KERN_INFO "NAND: Unable to find configuration " | |
259 | "in GPMC\n "); | |
260 | return; | |
261 | } | |
262 | ||
263 | if (nandcs < GPMC_CS_NUM) { | |
264 | overo_nand_data.cs = nandcs; | |
265 | overo_nand_data.gpmc_cs_baseaddr = (void *) | |
266 | (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE); | |
267 | overo_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add); | |
268 | ||
269 | printk(KERN_INFO "Registering NAND on CS%d\n", nandcs); | |
270 | if (platform_device_register(&overo_nand_device) < 0) | |
271 | printk(KERN_ERR "Unable to register NAND device\n"); | |
272 | } | |
273 | } | |
eba2645a | 274 | |
68ff0423 | 275 | static struct omap2_hsmmc_info mmc[] = { |
bb3b9d8e DB |
276 | { |
277 | .mmc = 1, | |
278 | .wires = 4, | |
279 | .gpio_cd = -EINVAL, | |
280 | .gpio_wp = -EINVAL, | |
281 | }, | |
282 | { | |
283 | .mmc = 2, | |
284 | .wires = 4, | |
285 | .gpio_cd = -EINVAL, | |
286 | .gpio_wp = -EINVAL, | |
287 | .transceiver = true, | |
288 | .ocr_mask = 0x00100000, /* 3.3V */ | |
289 | }, | |
290 | {} /* Terminator */ | |
291 | }; | |
292 | ||
293 | static struct regulator_consumer_supply overo_vmmc1_supply = { | |
294 | .supply = "vmmc", | |
295 | }; | |
296 | ||
297 | static int overo_twl_gpio_setup(struct device *dev, | |
298 | unsigned gpio, unsigned ngpio) | |
299 | { | |
68ff0423 | 300 | omap2_hsmmc_init(mmc); |
bb3b9d8e DB |
301 | |
302 | overo_vmmc1_supply.dev = mmc[0].dev; | |
303 | ||
304 | return 0; | |
305 | } | |
306 | ||
90c62bf0 TL |
307 | static struct twl4030_gpio_platform_data overo_gpio_data = { |
308 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
309 | .irq_base = TWL4030_GPIO_IRQ_BASE, | |
310 | .irq_end = TWL4030_GPIO_IRQ_END, | |
bb3b9d8e DB |
311 | .setup = overo_twl_gpio_setup, |
312 | }; | |
313 | ||
314 | static struct twl4030_usb_data overo_usb_data = { | |
315 | .usb_mode = T2_USB_MODE_ULPI, | |
316 | }; | |
317 | ||
318 | static struct regulator_init_data overo_vmmc1 = { | |
319 | .constraints = { | |
320 | .min_uV = 1850000, | |
321 | .max_uV = 3150000, | |
322 | .valid_modes_mask = REGULATOR_MODE_NORMAL | |
323 | | REGULATOR_MODE_STANDBY, | |
324 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | |
325 | | REGULATOR_CHANGE_MODE | |
326 | | REGULATOR_CHANGE_STATUS, | |
327 | }, | |
328 | .num_consumer_supplies = 1, | |
329 | .consumer_supplies = &overo_vmmc1_supply, | |
90c62bf0 TL |
330 | }; |
331 | ||
e86fa0b4 PU |
332 | static struct twl4030_codec_audio_data overo_audio_data = { |
333 | .audio_mclk = 26000000, | |
334 | }; | |
335 | ||
336 | static struct twl4030_codec_data overo_codec_data = { | |
6df74efb | 337 | .audio_mclk = 26000000, |
e86fa0b4 PU |
338 | .audio = &overo_audio_data, |
339 | }; | |
340 | ||
bb3b9d8e DB |
341 | /* mmc2 (WLAN) and Bluetooth don't use twl4030 regulators */ |
342 | ||
90c62bf0 TL |
343 | static struct twl4030_platform_data overo_twldata = { |
344 | .irq_base = TWL4030_IRQ_BASE, | |
345 | .irq_end = TWL4030_IRQ_END, | |
346 | .gpio = &overo_gpio_data, | |
bb3b9d8e | 347 | .usb = &overo_usb_data, |
e86fa0b4 | 348 | .codec = &overo_codec_data, |
bb3b9d8e | 349 | .vmmc1 = &overo_vmmc1, |
90c62bf0 TL |
350 | }; |
351 | ||
352 | static struct i2c_board_info __initdata overo_i2c_boardinfo[] = { | |
353 | { | |
bb3b9d8e | 354 | I2C_BOARD_INFO("tps65950", 0x48), |
90c62bf0 TL |
355 | .flags = I2C_CLIENT_WAKE, |
356 | .irq = INT_34XX_SYS_NIRQ, | |
357 | .platform_data = &overo_twldata, | |
358 | }, | |
359 | }; | |
360 | ||
eba2645a SS |
361 | static int __init overo_i2c_init(void) |
362 | { | |
90c62bf0 TL |
363 | omap_register_i2c_bus(1, 2600, overo_i2c_boardinfo, |
364 | ARRAY_SIZE(overo_i2c_boardinfo)); | |
eba2645a SS |
365 | /* i2c2 pins are used for gpio */ |
366 | omap_register_i2c_bus(3, 400, NULL, 0); | |
367 | return 0; | |
368 | } | |
369 | ||
eba2645a SS |
370 | static struct platform_device overo_lcd_device = { |
371 | .name = "overo_lcd", | |
372 | .id = -1, | |
373 | }; | |
374 | ||
375 | static struct omap_lcd_config overo_lcd_config __initdata = { | |
376 | .ctrl_name = "internal", | |
377 | }; | |
378 | ||
379 | static struct omap_board_config_kernel overo_config[] __initdata = { | |
eba2645a SS |
380 | { OMAP_TAG_LCD, &overo_lcd_config }, |
381 | }; | |
382 | ||
b3c6df3a PW |
383 | static void __init overo_init_irq(void) |
384 | { | |
385 | omap_board_config = overo_config; | |
386 | omap_board_config_size = ARRAY_SIZE(overo_config); | |
387 | omap2_init_common_hw(mt46h32m32lf6_sdrc_params, | |
388 | mt46h32m32lf6_sdrc_params); | |
389 | omap_init_irq(); | |
390 | omap_gpio_init(); | |
391 | } | |
392 | ||
eba2645a SS |
393 | static struct platform_device *overo_devices[] __initdata = { |
394 | &overo_lcd_device, | |
395 | }; | |
396 | ||
58a5491c FB |
397 | static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { |
398 | .port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN, | |
399 | .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY, | |
400 | .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, | |
401 | ||
402 | .phy_reset = true, | |
403 | .reset_gpio_port[0] = -EINVAL, | |
404 | .reset_gpio_port[1] = OVERO_GPIO_USBH_NRESET, | |
405 | .reset_gpio_port[2] = -EINVAL | |
406 | }; | |
407 | ||
ca5742bd TL |
408 | #ifdef CONFIG_OMAP_MUX |
409 | static struct omap_board_mux board_mux[] __initdata = { | |
410 | { .reg_offset = OMAP_MUX_TERMINATOR }, | |
411 | }; | |
412 | #else | |
413 | #define board_mux NULL | |
414 | #endif | |
58a5491c | 415 | |
884b8369 MM |
416 | static struct omap_musb_board_data musb_board_data = { |
417 | .interface_type = MUSB_INTERFACE_ULPI, | |
418 | .mode = MUSB_OTG, | |
419 | .power = 100, | |
420 | }; | |
421 | ||
eba2645a SS |
422 | static void __init overo_init(void) |
423 | { | |
ca5742bd | 424 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
eba2645a SS |
425 | overo_i2c_init(); |
426 | platform_add_devices(overo_devices, ARRAY_SIZE(overo_devices)); | |
eba2645a SS |
427 | omap_serial_init(); |
428 | overo_flash_init(); | |
884b8369 | 429 | usb_musb_init(&musb_board_data); |
58a5491c | 430 | usb_ehci_init(&ehci_pdata); |
c6a81316 | 431 | overo_ads7846_init(); |
172ef275 | 432 | overo_init_smsc911x(); |
eba2645a | 433 | |
9fb97412 | 434 | /* Ensure SDRC pins are mux'd for self-refresh */ |
4896e394 TL |
435 | omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); |
436 | omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); | |
9fb97412 | 437 | |
eba2645a SS |
438 | if ((gpio_request(OVERO_GPIO_W2W_NRESET, |
439 | "OVERO_GPIO_W2W_NRESET") == 0) && | |
440 | (gpio_direction_output(OVERO_GPIO_W2W_NRESET, 1) == 0)) { | |
441 | gpio_export(OVERO_GPIO_W2W_NRESET, 0); | |
442 | gpio_set_value(OVERO_GPIO_W2W_NRESET, 0); | |
443 | udelay(10); | |
444 | gpio_set_value(OVERO_GPIO_W2W_NRESET, 1); | |
445 | } else { | |
446 | printk(KERN_ERR "could not obtain gpio for " | |
447 | "OVERO_GPIO_W2W_NRESET\n"); | |
448 | } | |
449 | ||
450 | if ((gpio_request(OVERO_GPIO_BT_XGATE, "OVERO_GPIO_BT_XGATE") == 0) && | |
451 | (gpio_direction_output(OVERO_GPIO_BT_XGATE, 0) == 0)) | |
452 | gpio_export(OVERO_GPIO_BT_XGATE, 0); | |
453 | else | |
454 | printk(KERN_ERR "could not obtain gpio for OVERO_GPIO_BT_XGATE\n"); | |
455 | ||
456 | if ((gpio_request(OVERO_GPIO_BT_NRESET, "OVERO_GPIO_BT_NRESET") == 0) && | |
457 | (gpio_direction_output(OVERO_GPIO_BT_NRESET, 1) == 0)) { | |
458 | gpio_export(OVERO_GPIO_BT_NRESET, 0); | |
459 | gpio_set_value(OVERO_GPIO_BT_NRESET, 0); | |
460 | mdelay(6); | |
461 | gpio_set_value(OVERO_GPIO_BT_NRESET, 1); | |
462 | } else { | |
463 | printk(KERN_ERR "could not obtain gpio for " | |
464 | "OVERO_GPIO_BT_NRESET\n"); | |
465 | } | |
466 | ||
467 | if ((gpio_request(OVERO_GPIO_USBH_CPEN, "OVERO_GPIO_USBH_CPEN") == 0) && | |
468 | (gpio_direction_output(OVERO_GPIO_USBH_CPEN, 1) == 0)) | |
469 | gpio_export(OVERO_GPIO_USBH_CPEN, 0); | |
470 | else | |
471 | printk(KERN_ERR "could not obtain gpio for " | |
472 | "OVERO_GPIO_USBH_CPEN\n"); | |
eba2645a SS |
473 | } |
474 | ||
475 | static void __init overo_map_io(void) | |
476 | { | |
477 | omap2_set_globals_343x(); | |
6fbd55d0 | 478 | omap34xx_map_common_io(); |
eba2645a SS |
479 | } |
480 | ||
481 | MACHINE_START(OVERO, "Gumstix Overo") | |
482 | .phys_io = 0x48000000, | |
b4224b23 | 483 | .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc, |
eba2645a SS |
484 | .boot_params = 0x80000100, |
485 | .map_io = overo_map_io, | |
486 | .init_irq = overo_init_irq, | |
487 | .init_machine = overo_init, | |
488 | .timer = &omap_timer, | |
489 | MACHINE_END |