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sysfs: Remove support for tagged directories with untagged members (again)
[linux-btrfs-devel.git] / arch / arm / mach-omap2 / board-am3517evm.c
blobf3006c304150446c6fdedafabae77bf0c8381e89
1 /*
2 * linux/arch/arm/mach-omap2/board-am3517evm.c
3 *
4 * Copyright (C) 2009 Texas Instruments Incorporated
5 * Author: Ranjith Lohithakshan <ranjithl@ti.com>
6 *
7 * Based on mach-omap2/board-omap3evm.c
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation version 2.
12 *
13 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
14 * whether express or implied; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 */
18
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/clk.h>
22 #include <linux/platform_device.h>
23 #include <linux/gpio.h>
24 #include <linux/i2c/pca953x.h>
25 #include <linux/can/platform/ti_hecc.h>
26 #include <linux/davinci_emac.h>
27
28 #include <mach/hardware.h>
29 #include <mach/am35xx.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <plat/board.h>
35 #include <plat/common.h>
36 #include <plat/usb.h>
37 #include <video/omapdss.h>
38 #include <video/omap-panel-generic-dpi.h>
39
40 #include "mux.h"
41 #include "control.h"
42
43 #define AM35XX_EVM_MDIO_FREQUENCY (1000000)
44
45 static struct mdio_platform_data am3517_evm_mdio_pdata = {
46 .bus_freq = AM35XX_EVM_MDIO_FREQUENCY,
47 };
48
49 static struct resource am3517_mdio_resources[] = {
50 {
51 .start = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
52 .end = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
53 SZ_4K - 1,
54 .flags = IORESOURCE_MEM,
55 },
56 };
57
58 static struct platform_device am3517_mdio_device = {
59 .name = "davinci_mdio",
60 .id = 0,
61 .num_resources = ARRAY_SIZE(am3517_mdio_resources),
62 .resource = am3517_mdio_resources,
63 .dev.platform_data = &am3517_evm_mdio_pdata,
64 };
65
66 static struct emac_platform_data am3517_evm_emac_pdata = {
67 .rmii_en = 1,
68 };
69
70 static struct resource am3517_emac_resources[] = {
71 {
72 .start = AM35XX_IPSS_EMAC_BASE,
73 .end = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
74 .flags = IORESOURCE_MEM,
75 },
76 {
77 .start = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
78 .end = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
79 .flags = IORESOURCE_IRQ,
80 },
81 {
82 .start = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
83 .end = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
84 .flags = IORESOURCE_IRQ,
85 },
86 {
87 .start = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
88 .end = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
89 .flags = IORESOURCE_IRQ,
90 },
91 {
92 .start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
93 .end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
94 .flags = IORESOURCE_IRQ,
95 },
96 };
97
98 static struct platform_device am3517_emac_device = {
99 .name = "davinci_emac",
100 .id = -1,
101 .num_resources = ARRAY_SIZE(am3517_emac_resources),
102 .resource = am3517_emac_resources,
103 };
104
105 static void am3517_enable_ethernet_int(void)
106 {
107 u32 regval;
108
109 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
110 regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
111 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
112 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
113 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
114 omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
115 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
116 }
117
118 static void am3517_disable_ethernet_int(void)
119 {
120 u32 regval;
121
122 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
123 regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
124 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
125 omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
126 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
127 }
128
129 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
130 {
131 unsigned int regval;
132
133 pdata->ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET;
134 pdata->ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET;
135 pdata->ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET;
136 pdata->ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE;
137 pdata->version = EMAC_VERSION_2;
138 pdata->hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR;
139 pdata->interrupt_enable = am3517_enable_ethernet_int;
140 pdata->interrupt_disable = am3517_disable_ethernet_int;
141 am3517_emac_device.dev.platform_data = pdata;
142 platform_device_register(&am3517_emac_device);
143 platform_device_register(&am3517_mdio_device);
144 clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
145 NULL, &am3517_emac_device.dev);
146
147 regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
148 regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
149 omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
150 regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
151
152 return ;
153 }
154
155
156
157 #define LCD_PANEL_PWR 176
158 #define LCD_PANEL_BKLIGHT_PWR 182
159 #define LCD_PANEL_PWM 181
160
161 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
162 {
163 I2C_BOARD_INFO("s35390a", 0x30),
164 },
165 };
166
167 /*
168 * RTC - S35390A
169 */
170 #define GPIO_RTCS35390A_IRQ 55
171
172 static void __init am3517_evm_rtc_init(void)
173 {
174 int r;
175
176 omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
177
178 r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
179 if (r < 0) {
180 printk(KERN_WARNING "failed to request GPIO#%d\n",
181 GPIO_RTCS35390A_IRQ);
182 return;
183 }
184
185 am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
186 }
187
188 /*
189 * I2C GPIO Expander - TCA6416
190 */
191
192 /* Mounted on Base-Board */
193 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
194 .gpio_base = OMAP_MAX_GPIO_LINES,
195 };
196 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
197 {
198 I2C_BOARD_INFO("tlv320aic23", 0x1A),
199 },
200 {
201 I2C_BOARD_INFO("tca6416", 0x21),
202 .platform_data = &am3517evm_gpio_expander_info_0,
203 },
204 };
205
206 /* Mounted on UI Card */
207 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
208 .gpio_base = OMAP_MAX_GPIO_LINES + 16,
209 };
210 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
211 .gpio_base = OMAP_MAX_GPIO_LINES + 32,
212 };
213 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
214 {
215 I2C_BOARD_INFO("tca6416", 0x20),
216 .platform_data = &am3517evm_ui_gpio_expander_info_1,
217 },
218 {
219 I2C_BOARD_INFO("tca6416", 0x21),
220 .platform_data = &am3517evm_ui_gpio_expander_info_2,
221 },
222 };
223
224 static int __init am3517_evm_i2c_init(void)
225 {
226 omap_register_i2c_bus(1, 400, NULL, 0);
227 omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
228 ARRAY_SIZE(am3517evm_i2c2_boardinfo));
229 omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
230 ARRAY_SIZE(am3517evm_i2c3_boardinfo));
231
232 return 0;
233 }
234
235 static int lcd_enabled;
236 static int dvi_enabled;
237
238 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
239 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
240 static struct gpio am3517_evm_dss_gpios[] __initdata = {
241 /* GPIO 182 = LCD Backlight Power */
242 { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
243 /* GPIO 181 = LCD Panel PWM */
244 { LCD_PANEL_PWM, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
245 /* GPIO 176 = LCD Panel Power enable pin */
246 { LCD_PANEL_PWR, GPIOF_OUT_INIT_HIGH, "dvi enable" },
247 };
248
249 static void __init am3517_evm_display_init(void)
250 {
251 int r;
252
253 omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
254 omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
255 omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
256
257 r = gpio_request_array(am3517_evm_dss_gpios,
258 ARRAY_SIZE(am3517_evm_dss_gpios));
259 if (r) {
260 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
261 return;
262 }
263
264 printk(KERN_INFO "Display initialized successfully\n");
265 }
266 #else
267 static void __init am3517_evm_display_init(void) {}
268 #endif
269
270 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
271 {
272 if (dvi_enabled) {
273 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
274 return -EINVAL;
275 }
276 gpio_set_value(LCD_PANEL_PWR, 1);
277 lcd_enabled = 1;
278
279 return 0;
280 }
281
282 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
283 {
284 gpio_set_value(LCD_PANEL_PWR, 0);
285 lcd_enabled = 0;
286 }
287
288 static struct panel_generic_dpi_data lcd_panel = {
289 .name = "sharp_lq",
290 .platform_enable = am3517_evm_panel_enable_lcd,
291 .platform_disable = am3517_evm_panel_disable_lcd,
292 };
293
294 static struct omap_dss_device am3517_evm_lcd_device = {
295 .type = OMAP_DISPLAY_TYPE_DPI,
296 .name = "lcd",
297 .driver_name = "generic_dpi_panel",
298 .data = &lcd_panel,
299 .phy.dpi.data_lines = 16,
300 };
301
302 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
303 {
304 return 0;
305 }
306
307 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
308 {
309 }
310
311 static struct omap_dss_device am3517_evm_tv_device = {
312 .type = OMAP_DISPLAY_TYPE_VENC,
313 .name = "tv",
314 .driver_name = "venc",
315 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
316 .platform_enable = am3517_evm_panel_enable_tv,
317 .platform_disable = am3517_evm_panel_disable_tv,
318 };
319
320 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
321 {
322 if (lcd_enabled) {
323 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
324 return -EINVAL;
325 }
326 dvi_enabled = 1;
327
328 return 0;
329 }
330
331 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
332 {
333 dvi_enabled = 0;
334 }
335
336 static struct panel_generic_dpi_data dvi_panel = {
337 .name = "generic",
338 .platform_enable = am3517_evm_panel_enable_dvi,
339 .platform_disable = am3517_evm_panel_disable_dvi,
340 };
341
342 static struct omap_dss_device am3517_evm_dvi_device = {
343 .type = OMAP_DISPLAY_TYPE_DPI,
344 .name = "dvi",
345 .driver_name = "generic_dpi_panel",
346 .data = &dvi_panel,
347 .phy.dpi.data_lines = 24,
348 };
349
350 static struct omap_dss_device *am3517_evm_dss_devices[] = {
351 &am3517_evm_lcd_device,
352 &am3517_evm_tv_device,
353 &am3517_evm_dvi_device,
354 };
355
356 static struct omap_dss_board_info am3517_evm_dss_data = {
357 .num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
358 .devices = am3517_evm_dss_devices,
359 .default_device = &am3517_evm_lcd_device,
360 };
361
362 /*
363 * Board initialization
364 */
365 static void __init am3517_evm_init_early(void)
366 {
367 omap2_init_common_infrastructure();
368 omap2_init_common_devices(NULL, NULL);
369 }
370
371 static struct omap_musb_board_data musb_board_data = {
372 .interface_type = MUSB_INTERFACE_ULPI,
373 .mode = MUSB_OTG,
374 .power = 500,
375 .set_phy_power = am35x_musb_phy_power,
376 .clear_irq = am35x_musb_clear_irq,
377 .set_mode = am35x_set_mode,
378 .reset = am35x_musb_reset,
379 };
380
381 static __init void am3517_evm_musb_init(void)
382 {
383 u32 devconf2;
384
385 /*
386 * Set up USB clock/mode in the DEVCONF2 register.
387 */
388 devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
389
390 /* USB2.0 PHY reference clock is 13 MHz */
391 devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
392 devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
393 | CONF2_DATPOL;
394
395 omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
396
397 usb_musb_init(&musb_board_data);
398 }
399
400 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
401 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
402 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
403 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
404 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
405 #else
406 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
407 #endif
408 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
409
410 .phy_reset = true,
411 .reset_gpio_port[0] = 57,
412 .reset_gpio_port[1] = -EINVAL,
413 .reset_gpio_port[2] = -EINVAL
414 };
415
416 #ifdef CONFIG_OMAP_MUX
417 static struct omap_board_mux board_mux[] __initdata = {
418 /* USB OTG DRVVBUS offset = 0x212 */
419 OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
420 { .reg_offset = OMAP_MUX_TERMINATOR },
421 };
422 #endif
423
424
425 static struct resource am3517_hecc_resources[] = {
426 {
427 .start = AM35XX_IPSS_HECC_BASE,
428 .end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
429 .flags = IORESOURCE_MEM,
430 },
431 {
432 .start = INT_35XX_HECC0_IRQ,
433 .end = INT_35XX_HECC0_IRQ,
434 .flags = IORESOURCE_IRQ,
435 },
436 };
437
438 static struct platform_device am3517_hecc_device = {
439 .name = "ti_hecc",
440 .id = -1,
441 .num_resources = ARRAY_SIZE(am3517_hecc_resources),
442 .resource = am3517_hecc_resources,
443 };
444
445 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
446 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
447 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
448 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
449 .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
450 .int_line = AM35XX_HECC_INT_LINE,
451 .version = AM35XX_HECC_VERSION,
452 };
453
454 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
455 {
456 am3517_hecc_device.dev.platform_data = pdata;
457 platform_device_register(&am3517_hecc_device);
458 }
459
460 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
461 };
462
463 static void __init am3517_evm_init(void)
464 {
465 omap_board_config = am3517_evm_config;
466 omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
467 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
468
469 am3517_evm_i2c_init();
470 omap_display_init(&am3517_evm_dss_data);
471 omap_serial_init();
472
473 /* Configure GPIO for EHCI port */
474 omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
475 usbhs_init(&usbhs_bdata);
476 am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
477 /* DSS */
478 am3517_evm_display_init();
479
480 /* RTC - S35390A */
481 am3517_evm_rtc_init();
482
483 i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
484 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
485 /*Ethernet*/
486 am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
487
488 /* MUSB */
489 am3517_evm_musb_init();
490 }
491
492 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
493 .boot_params = 0x80000100,
494 .reserve = omap_reserve,
495 .map_io = omap3_map_io,
496 .init_early = am3517_evm_init_early,
497 .init_irq = omap3_init_irq,
498 .init_machine = am3517_evm_init,
499 .timer = &omap3_timer,
500 MACHINE_END
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