1 /*
2 * linux/arch/arm/mach-omap2/board-omap3evm.c
3 *
4 * Copyright (C) 2008 Guangzhou EMA-Tech
5 *
6 * Modified from mach-omap2/board-omap3evm.c
7 *
8 * Initial code: Syed Mohammed Khasim
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/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/err.h>
20 #include <linux/clk.h>
21 #include <linux/io.h>
22 #include <linux/leds.h>
23 #include <linux/gpio.h>
24 #include <linux/input.h>
25 #include <linux/gpio_keys.h>
26
27 #include <linux/regulator/machine.h>
28 #include <linux/i2c/twl.h>
29 #include <linux/mmc/host.h>
30
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35 #include <asm/mach/flash.h>
36
37 #include <plat/board.h>
38 #include "common.h"
39 #include <plat/gpmc.h>
40 #include <plat/nand.h>
41 #include <plat/usb.h>
42 #include <video/omapdss.h>
43 #include <video/omap-panel-generic-dpi.h>
44 #include <video/omap-panel-dvi.h>
45
46 #include <plat/mcspi.h>
47 #include <linux/input/matrix_keypad.h>
48 #include <linux/spi/spi.h>
49 #include <linux/interrupt.h>
50 #include <linux/smsc911x.h>
51 #include <linux/i2c/at24.h>
52
53 #include "sdram-micron-mt46h32m32lf-6.h"
54 #include "mux.h"
55 #include "hsmmc.h"
56 #include "common-board-devices.h"
57
58 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
59 #include <plat/gpmc-smsc911x.h>
60
61 #define OMAP3STALKER_ETHR_START 0x2c000000
62 #define OMAP3STALKER_ETHR_SIZE 1024
63 #define OMAP3STALKER_ETHR_GPIO_IRQ 19
64 #define OMAP3STALKER_SMC911X_CS 5
65
66 static struct omap_smsc911x_platform_data smsc911x_cfg = {
67 .cs = OMAP3STALKER_SMC911X_CS,
68 .gpio_irq = OMAP3STALKER_ETHR_GPIO_IRQ,
69 .gpio_reset = -EINVAL,
70 .flags = (SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS),
71 };
72
omap3stalker_init_eth(void)73 static inline void __init omap3stalker_init_eth(void)
74 {
75 struct clk *l3ck;
76 unsigned int rate;
77
78 l3ck = clk_get(NULL, "l3_ck");
79 if (IS_ERR(l3ck))
80 rate = 100000000;
81 else
82 rate = clk_get_rate(l3ck);
83
84 omap_mux_init_gpio(19, OMAP_PIN_INPUT_PULLUP);
85 gpmc_smsc911x_init(&smsc911x_cfg);
86 }
87
88 #else
omap3stalker_init_eth(void)89 static inline void __init omap3stalker_init_eth(void)
90 {
91 return;
92 }
93 #endif
94
95 /*
96 * OMAP3 DSS control signals
97 */
98
99 #define DSS_ENABLE_GPIO 199
100 #define LCD_PANEL_BKLIGHT_GPIO 210
101 #define ENABLE_VPLL2_DEV_GRP 0xE0
102
103 static int lcd_enabled;
104 static int dvi_enabled;
105
omap3_stalker_display_init(void)106 static void __init omap3_stalker_display_init(void)
107 {
108 return;
109 }
110
omap3_stalker_enable_tv(struct omap_dss_device * dssdev)111 static int omap3_stalker_enable_tv(struct omap_dss_device *dssdev)
112 {
113 return 0;
114 }
115
omap3_stalker_disable_tv(struct omap_dss_device * dssdev)116 static void omap3_stalker_disable_tv(struct omap_dss_device *dssdev)
117 {
118 }
119
120 static struct omap_dss_device omap3_stalker_tv_device = {
121 .name = "tv",
122 .driver_name = "venc",
123 .type = OMAP_DISPLAY_TYPE_VENC,
124 #if defined(CONFIG_OMAP2_VENC_OUT_TYPE_SVIDEO)
125 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
126 #elif defined(CONFIG_OMAP2_VENC_OUT_TYPE_COMPOSITE)
127 .u.venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE,
128 #endif
129 .platform_enable = omap3_stalker_enable_tv,
130 .platform_disable = omap3_stalker_disable_tv,
131 };
132
omap3_stalker_enable_dvi(struct omap_dss_device * dssdev)133 static int omap3_stalker_enable_dvi(struct omap_dss_device *dssdev)
134 {
135 if (lcd_enabled) {
136 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
137 return -EINVAL;
138 }
139 gpio_set_value(DSS_ENABLE_GPIO, 1);
140 dvi_enabled = 1;
141 return 0;
142 }
143
omap3_stalker_disable_dvi(struct omap_dss_device * dssdev)144 static void omap3_stalker_disable_dvi(struct omap_dss_device *dssdev)
145 {
146 gpio_set_value(DSS_ENABLE_GPIO, 0);
147 dvi_enabled = 0;
148 }
149
150 static struct panel_dvi_platform_data dvi_panel = {
151 .platform_enable = omap3_stalker_enable_dvi,
152 .platform_disable = omap3_stalker_disable_dvi,
153 };
154
155 static struct omap_dss_device omap3_stalker_dvi_device = {
156 .name = "dvi",
157 .type = OMAP_DISPLAY_TYPE_DPI,
158 .driver_name = "dvi",
159 .data = &dvi_panel,
160 .phy.dpi.data_lines = 24,
161 };
162
163 static struct omap_dss_device *omap3_stalker_dss_devices[] = {
164 &omap3_stalker_tv_device,
165 &omap3_stalker_dvi_device,
166 };
167
168 static struct omap_dss_board_info omap3_stalker_dss_data = {
169 .num_devices = ARRAY_SIZE(omap3_stalker_dss_devices),
170 .devices = omap3_stalker_dss_devices,
171 .default_device = &omap3_stalker_dvi_device,
172 };
173
174 static struct regulator_consumer_supply omap3stalker_vmmc1_supply[] = {
175 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
176 };
177
178 static struct regulator_consumer_supply omap3stalker_vsim_supply[] = {
179 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
180 };
181
182 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
183 static struct regulator_init_data omap3stalker_vmmc1 = {
184 .constraints = {
185 .min_uV = 1850000,
186 .max_uV = 3150000,
187 .valid_modes_mask = REGULATOR_MODE_NORMAL
188 | REGULATOR_MODE_STANDBY,
189 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
190 | REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
191 },
192 .num_consumer_supplies = ARRAY_SIZE(omap3stalker_vmmc1_supply),
193 .consumer_supplies = omap3stalker_vmmc1_supply,
194 };
195
196 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
197 static struct regulator_init_data omap3stalker_vsim = {
198 .constraints = {
199 .min_uV = 1800000,
200 .max_uV = 3000000,
201 .valid_modes_mask = REGULATOR_MODE_NORMAL
202 | REGULATOR_MODE_STANDBY,
203 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
204 | REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
205 },
206 .num_consumer_supplies = ARRAY_SIZE(omap3stalker_vsim_supply),
207 .consumer_supplies = omap3stalker_vsim_supply,
208 };
209
210 static struct omap2_hsmmc_info mmc[] = {
211 {
212 .mmc = 1,
213 .caps = MMC_CAP_4_BIT_DATA,
214 .gpio_cd = -EINVAL,
215 .gpio_wp = 23,
216 },
217 {} /* Terminator */
218 };
219
220 static struct gpio_keys_button gpio_buttons[] = {
221 {
222 .code = BTN_EXTRA,
223 .gpio = 18,
224 .desc = "user",
225 .wakeup = 1,
226 },
227 };
228
229 static struct gpio_keys_platform_data gpio_key_info = {
230 .buttons = gpio_buttons,
231 .nbuttons = ARRAY_SIZE(gpio_buttons),
232 };
233
234 static struct platform_device keys_gpio = {
235 .name = "gpio-keys",
236 .id = -1,
237 .dev = {
238 .platform_data = &gpio_key_info,
239 },
240 };
241
242 static struct gpio_led gpio_leds[] = {
243 {
244 .name = "stalker:D8:usr0",
245 .default_trigger = "default-on",
246 .gpio = 126,
247 },
248 {
249 .name = "stalker:D9:usr1",
250 .default_trigger = "default-on",
251 .gpio = 127,
252 },
253 {
254 .name = "stalker:D3:mmc0",
255 .gpio = -EINVAL, /* gets replaced */
256 .active_low = true,
257 .default_trigger = "mmc0",
258 },
259 {
260 .name = "stalker:D4:heartbeat",
261 .gpio = -EINVAL, /* gets replaced */
262 .active_low = true,
263 .default_trigger = "heartbeat",
264 },
265 };
266
267 static struct gpio_led_platform_data gpio_led_info = {
268 .leds = gpio_leds,
269 .num_leds = ARRAY_SIZE(gpio_leds),
270 };
271
272 static struct platform_device leds_gpio = {
273 .name = "leds-gpio",
274 .id = -1,
275 .dev = {
276 .platform_data = &gpio_led_info,
277 },
278 };
279
280 static int
omap3stalker_twl_gpio_setup(struct device * dev,unsigned gpio,unsigned ngpio)281 omap3stalker_twl_gpio_setup(struct device *dev,
282 unsigned gpio, unsigned ngpio)
283 {
284 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
285 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
286 mmc[0].gpio_cd = gpio + 0;
287 omap2_hsmmc_init(mmc);
288
289 /*
290 * Most GPIOs are for USB OTG. Some are mostly sent to
291 * the P2 connector; notably LEDA for the LCD backlight.
292 */
293
294 /* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */
295 gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
296 "EN_LCD_BKL");
297
298 /* gpio + 7 == DVI Enable */
299 gpio_request_one(gpio + 7, GPIOF_OUT_INIT_LOW, "EN_DVI");
300
301 /* TWL4030_GPIO_MAX + 1 == ledB (out, mmc0) */
302 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
303 /* GPIO + 13 == ledsync (out, heartbeat) */
304 gpio_leds[3].gpio = gpio + 13;
305
306 platform_device_register(&leds_gpio);
307 return 0;
308 }
309
310 static struct twl4030_gpio_platform_data omap3stalker_gpio_data = {
311 .gpio_base = OMAP_MAX_GPIO_LINES,
312 .irq_base = TWL4030_GPIO_IRQ_BASE,
313 .irq_end = TWL4030_GPIO_IRQ_END,
314 .use_leds = true,
315 .setup = omap3stalker_twl_gpio_setup,
316 };
317
318 static uint32_t board_keymap[] = {
319 KEY(0, 0, KEY_LEFT),
320 KEY(0, 1, KEY_DOWN),
321 KEY(0, 2, KEY_ENTER),
322 KEY(0, 3, KEY_M),
323
324 KEY(1, 0, KEY_RIGHT),
325 KEY(1, 1, KEY_UP),
326 KEY(1, 2, KEY_I),
327 KEY(1, 3, KEY_N),
328
329 KEY(2, 0, KEY_A),
330 KEY(2, 1, KEY_E),
331 KEY(2, 2, KEY_J),
332 KEY(2, 3, KEY_O),
333
334 KEY(3, 0, KEY_B),
335 KEY(3, 1, KEY_F),
336 KEY(3, 2, KEY_K),
337 KEY(3, 3, KEY_P)
338 };
339
340 static struct matrix_keymap_data board_map_data = {
341 .keymap = board_keymap,
342 .keymap_size = ARRAY_SIZE(board_keymap),
343 };
344
345 static struct twl4030_keypad_data omap3stalker_kp_data = {
346 .keymap_data = &board_map_data,
347 .rows = 4,
348 .cols = 4,
349 .rep = 1,
350 };
351
352 static struct twl4030_platform_data omap3stalker_twldata = {
353 /* platform_data for children goes here */
354 .keypad = &omap3stalker_kp_data,
355 .gpio = &omap3stalker_gpio_data,
356 .vmmc1 = &omap3stalker_vmmc1,
357 .vsim = &omap3stalker_vsim,
358 };
359
360 static struct at24_platform_data fram_info = {
361 .byte_len = (64 * 1024) / 8,
362 .page_size = 8192,
363 .flags = AT24_FLAG_ADDR16 | AT24_FLAG_IRUGO,
364 };
365
366 static struct i2c_board_info __initdata omap3stalker_i2c_boardinfo3[] = {
367 {
368 I2C_BOARD_INFO("24c64", 0x50),
369 .flags = I2C_CLIENT_WAKE,
370 .platform_data = &fram_info,
371 },
372 };
373
omap3_stalker_i2c_init(void)374 static int __init omap3_stalker_i2c_init(void)
375 {
376 omap3_pmic_get_config(&omap3stalker_twldata,
377 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
378 TWL_COMMON_PDATA_AUDIO,
379 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
380
381 omap3stalker_twldata.vdac->constraints.apply_uV = true;
382 omap3stalker_twldata.vpll2->constraints.apply_uV = true;
383 omap3stalker_twldata.vpll2->constraints.name = "VDVI";
384
385 omap3_pmic_init("twl4030", &omap3stalker_twldata);
386 omap_register_i2c_bus(2, 400, NULL, 0);
387 omap_register_i2c_bus(3, 400, omap3stalker_i2c_boardinfo3,
388 ARRAY_SIZE(omap3stalker_i2c_boardinfo3));
389 return 0;
390 }
391
392 #define OMAP3_STALKER_TS_GPIO 175
393
394 static struct omap_board_config_kernel omap3_stalker_config[] __initdata = {
395 };
396
397 static struct platform_device *omap3_stalker_devices[] __initdata = {
398 &keys_gpio,
399 };
400
401 static struct usbhs_omap_board_data usbhs_bdata __initconst = {
402 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
403 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
404 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
405
406 .phy_reset = true,
407 .reset_gpio_port[0] = -EINVAL,
408 .reset_gpio_port[1] = 21,
409 .reset_gpio_port[2] = -EINVAL,
410 };
411
412 #ifdef CONFIG_OMAP_MUX
413 static struct omap_board_mux board_mux[] __initdata = {
414 OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
415 OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
416 OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
417 OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
418 {.reg_offset = OMAP_MUX_TERMINATOR},
419 };
420 #endif
421
omap3_stalker_init(void)422 static void __init omap3_stalker_init(void)
423 {
424 omap3_mux_init(board_mux, OMAP_PACKAGE_CUS);
425 omap_board_config = omap3_stalker_config;
426 omap_board_config_size = ARRAY_SIZE(omap3_stalker_config);
427
428 omap3_stalker_i2c_init();
429
430 platform_add_devices(omap3_stalker_devices,
431 ARRAY_SIZE(omap3_stalker_devices));
432
433 omap_display_init(&omap3_stalker_dss_data);
434
435 omap_serial_init();
436 omap_sdrc_init(mt46h32m32lf6_sdrc_params, NULL);
437 usb_musb_init(NULL);
438 usbhs_init(&usbhs_bdata);
439 omap_ads7846_init(1, OMAP3_STALKER_TS_GPIO, 310, NULL);
440
441 omap_mux_init_gpio(21, OMAP_PIN_OUTPUT);
442 omap_mux_init_gpio(18, OMAP_PIN_INPUT_PULLUP);
443
444 omap3stalker_init_eth();
445 omap3_stalker_display_init();
446 /* Ensure SDRC pins are mux'd for self-refresh */
447 omap_mux_init_signal("sdr_cke0", OMAP_PIN_OUTPUT);
448 omap_mux_init_signal("sdr_cke1", OMAP_PIN_OUTPUT);
449 }
450
451 MACHINE_START(SBC3530, "OMAP3 STALKER")
452 /* Maintainer: Jason Lam -lzg@ema-tech.com */
453 .atag_offset = 0x100,
454 .map_io = omap3_map_io,
455 .init_early = omap35xx_init_early,
456 .init_irq = omap3_init_irq,
457 .handle_irq = omap3_intc_handle_irq,
458 .init_machine = omap3_stalker_init,
459 .timer = &omap3_secure_timer,
460 .restart = omap_prcm_restart,
461 MACHINE_END
462