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 #include <linux/mmc/host.h>
28
29 #include <mach/hardware.h>
30 #include <mach/am35xx.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/map.h>
34
35 #include <plat/board.h>
36 #include "common.h"
37 #include <plat/usb.h>
38 #include <video/omapdss.h>
39 #include <video/omap-panel-generic-dpi.h>
40 #include <video/omap-panel-dvi.h>
41
42 #include "mux.h"
43 #include "control.h"
44 #include "hsmmc.h"
45
46 #define AM35XX_EVM_MDIO_FREQUENCY (1000000)
47
48 static struct mdio_platform_data am3517_evm_mdio_pdata = {
49 .bus_freq = AM35XX_EVM_MDIO_FREQUENCY,
50 };
51
52 static struct resource am3517_mdio_resources[] = {
53 {
54 .start = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
55 .end = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
56 SZ_4K - 1,
57 .flags = IORESOURCE_MEM,
58 },
59 };
60
61 static struct platform_device am3517_mdio_device = {
62 .name = "davinci_mdio",
63 .id = 0,
64 .num_resources = ARRAY_SIZE(am3517_mdio_resources),
65 .resource = am3517_mdio_resources,
66 .dev.platform_data = &am3517_evm_mdio_pdata,
67 };
68
69 static struct emac_platform_data am3517_evm_emac_pdata = {
70 .rmii_en = 1,
71 };
72
73 static struct resource am3517_emac_resources[] = {
74 {
75 .start = AM35XX_IPSS_EMAC_BASE,
76 .end = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
77 .flags = IORESOURCE_MEM,
78 },
79 {
80 .start = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
81 .end = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
82 .flags = IORESOURCE_IRQ,
83 },
84 {
85 .start = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
86 .end = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
87 .flags = IORESOURCE_IRQ,
88 },
89 {
90 .start = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
91 .end = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
92 .flags = IORESOURCE_IRQ,
93 },
94 {
95 .start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
96 .end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
97 .flags = IORESOURCE_IRQ,
98 },
99 };
100
101 static struct platform_device am3517_emac_device = {
102 .name = "davinci_emac",
103 .id = -1,
104 .num_resources = ARRAY_SIZE(am3517_emac_resources),
105 .resource = am3517_emac_resources,
106 };
107
am3517_enable_ethernet_int(void)108 static void am3517_enable_ethernet_int(void)
109 {
110 u32 regval;
111
112 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
113 regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
114 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
115 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
116 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
117 omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
118 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
119 }
120
am3517_disable_ethernet_int(void)121 static void am3517_disable_ethernet_int(void)
122 {
123 u32 regval;
124
125 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
126 regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
127 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
128 omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
129 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
130 }
131
am3517_evm_ethernet_init(struct emac_platform_data * pdata)132 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
133 {
134 unsigned int regval;
135
136 pdata->ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET;
137 pdata->ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET;
138 pdata->ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET;
139 pdata->ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE;
140 pdata->version = EMAC_VERSION_2;
141 pdata->hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR;
142 pdata->interrupt_enable = am3517_enable_ethernet_int;
143 pdata->interrupt_disable = am3517_disable_ethernet_int;
144 am3517_emac_device.dev.platform_data = pdata;
145 platform_device_register(&am3517_emac_device);
146 platform_device_register(&am3517_mdio_device);
147 clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
148 NULL, &am3517_emac_device.dev);
149
150 regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
151 regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
152 omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
153 regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
154
155 return ;
156 }
157
158
159
160 #define LCD_PANEL_PWR 176
161 #define LCD_PANEL_BKLIGHT_PWR 182
162 #define LCD_PANEL_PWM 181
163
164 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
165 {
166 I2C_BOARD_INFO("s35390a", 0x30),
167 },
168 };
169
170 /*
171 * RTC - S35390A
172 */
173 #define GPIO_RTCS35390A_IRQ 55
174
am3517_evm_rtc_init(void)175 static void __init am3517_evm_rtc_init(void)
176 {
177 int r;
178
179 omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
180
181 r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
182 if (r < 0) {
183 printk(KERN_WARNING "failed to request GPIO#%d\n",
184 GPIO_RTCS35390A_IRQ);
185 return;
186 }
187
188 am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
189 }
190
191 /*
192 * I2C GPIO Expander - TCA6416
193 */
194
195 /* Mounted on Base-Board */
196 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
197 .gpio_base = OMAP_MAX_GPIO_LINES,
198 };
199 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
200 {
201 I2C_BOARD_INFO("tlv320aic23", 0x1A),
202 },
203 {
204 I2C_BOARD_INFO("tca6416", 0x21),
205 .platform_data = &am3517evm_gpio_expander_info_0,
206 },
207 };
208
209 /* Mounted on UI Card */
210 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
211 .gpio_base = OMAP_MAX_GPIO_LINES + 16,
212 };
213 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
214 .gpio_base = OMAP_MAX_GPIO_LINES + 32,
215 };
216 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
217 {
218 I2C_BOARD_INFO("tca6416", 0x20),
219 .platform_data = &am3517evm_ui_gpio_expander_info_1,
220 },
221 {
222 I2C_BOARD_INFO("tca6416", 0x21),
223 .platform_data = &am3517evm_ui_gpio_expander_info_2,
224 },
225 };
226
am3517_evm_i2c_init(void)227 static int __init am3517_evm_i2c_init(void)
228 {
229 omap_register_i2c_bus(1, 400, NULL, 0);
230 omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
231 ARRAY_SIZE(am3517evm_i2c2_boardinfo));
232 omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
233 ARRAY_SIZE(am3517evm_i2c3_boardinfo));
234
235 return 0;
236 }
237
238 static int lcd_enabled;
239 static int dvi_enabled;
240
241 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
242 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
243 static struct gpio am3517_evm_dss_gpios[] __initdata = {
244 /* GPIO 182 = LCD Backlight Power */
245 { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
246 /* GPIO 181 = LCD Panel PWM */
247 { LCD_PANEL_PWM, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
248 /* GPIO 176 = LCD Panel Power enable pin */
249 { LCD_PANEL_PWR, GPIOF_OUT_INIT_HIGH, "dvi enable" },
250 };
251
am3517_evm_display_init(void)252 static void __init am3517_evm_display_init(void)
253 {
254 int r;
255
256 omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
257 omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
258 omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
259
260 r = gpio_request_array(am3517_evm_dss_gpios,
261 ARRAY_SIZE(am3517_evm_dss_gpios));
262 if (r) {
263 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
264 return;
265 }
266
267 printk(KERN_INFO "Display initialized successfully\n");
268 }
269 #else
am3517_evm_display_init(void)270 static void __init am3517_evm_display_init(void) {}
271 #endif
272
am3517_evm_panel_enable_lcd(struct omap_dss_device * dssdev)273 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
274 {
275 if (dvi_enabled) {
276 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
277 return -EINVAL;
278 }
279 gpio_set_value(LCD_PANEL_PWR, 1);
280 lcd_enabled = 1;
281
282 return 0;
283 }
284
am3517_evm_panel_disable_lcd(struct omap_dss_device * dssdev)285 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
286 {
287 gpio_set_value(LCD_PANEL_PWR, 0);
288 lcd_enabled = 0;
289 }
290
291 static struct panel_generic_dpi_data lcd_panel = {
292 .name = "sharp_lq",
293 .platform_enable = am3517_evm_panel_enable_lcd,
294 .platform_disable = am3517_evm_panel_disable_lcd,
295 };
296
297 static struct omap_dss_device am3517_evm_lcd_device = {
298 .type = OMAP_DISPLAY_TYPE_DPI,
299 .name = "lcd",
300 .driver_name = "generic_dpi_panel",
301 .data = &lcd_panel,
302 .phy.dpi.data_lines = 16,
303 };
304
am3517_evm_panel_enable_tv(struct omap_dss_device * dssdev)305 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
306 {
307 return 0;
308 }
309
am3517_evm_panel_disable_tv(struct omap_dss_device * dssdev)310 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
311 {
312 }
313
314 static struct omap_dss_device am3517_evm_tv_device = {
315 .type = OMAP_DISPLAY_TYPE_VENC,
316 .name = "tv",
317 .driver_name = "venc",
318 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
319 .platform_enable = am3517_evm_panel_enable_tv,
320 .platform_disable = am3517_evm_panel_disable_tv,
321 };
322
am3517_evm_panel_enable_dvi(struct omap_dss_device * dssdev)323 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
324 {
325 if (lcd_enabled) {
326 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
327 return -EINVAL;
328 }
329 dvi_enabled = 1;
330
331 return 0;
332 }
333
am3517_evm_panel_disable_dvi(struct omap_dss_device * dssdev)334 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
335 {
336 dvi_enabled = 0;
337 }
338
339 static struct panel_dvi_platform_data dvi_panel = {
340 .platform_enable = am3517_evm_panel_enable_dvi,
341 .platform_disable = am3517_evm_panel_disable_dvi,
342 };
343
344 static struct omap_dss_device am3517_evm_dvi_device = {
345 .type = OMAP_DISPLAY_TYPE_DPI,
346 .name = "dvi",
347 .driver_name = "dvi",
348 .data = &dvi_panel,
349 .phy.dpi.data_lines = 24,
350 };
351
352 static struct omap_dss_device *am3517_evm_dss_devices[] = {
353 &am3517_evm_lcd_device,
354 &am3517_evm_tv_device,
355 &am3517_evm_dvi_device,
356 };
357
358 static struct omap_dss_board_info am3517_evm_dss_data = {
359 .num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
360 .devices = am3517_evm_dss_devices,
361 .default_device = &am3517_evm_lcd_device,
362 };
363
364 /*
365 * Board initialization
366 */
367
368 static struct omap_musb_board_data musb_board_data = {
369 .interface_type = MUSB_INTERFACE_ULPI,
370 .mode = MUSB_OTG,
371 .power = 500,
372 .set_phy_power = am35x_musb_phy_power,
373 .clear_irq = am35x_musb_clear_irq,
374 .set_mode = am35x_set_mode,
375 .reset = am35x_musb_reset,
376 };
377
am3517_evm_musb_init(void)378 static __init void am3517_evm_musb_init(void)
379 {
380 u32 devconf2;
381
382 /*
383 * Set up USB clock/mode in the DEVCONF2 register.
384 */
385 devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
386
387 /* USB2.0 PHY reference clock is 13 MHz */
388 devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
389 devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
390 | CONF2_DATPOL;
391
392 omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
393
394 usb_musb_init(&musb_board_data);
395 }
396
397 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
398 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
399 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
400 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
401 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
402 #else
403 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
404 #endif
405 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
406
407 .phy_reset = true,
408 .reset_gpio_port[0] = 57,
409 .reset_gpio_port[1] = -EINVAL,
410 .reset_gpio_port[2] = -EINVAL
411 };
412
413 #ifdef CONFIG_OMAP_MUX
414 static struct omap_board_mux board_mux[] __initdata = {
415 /* USB OTG DRVVBUS offset = 0x212 */
416 OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
417 { .reg_offset = OMAP_MUX_TERMINATOR },
418 };
419 #endif
420
421
422 static struct resource am3517_hecc_resources[] = {
423 {
424 .start = AM35XX_IPSS_HECC_BASE,
425 .end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
426 .flags = IORESOURCE_MEM,
427 },
428 {
429 .start = INT_35XX_HECC0_IRQ,
430 .end = INT_35XX_HECC0_IRQ,
431 .flags = IORESOURCE_IRQ,
432 },
433 };
434
435 static struct platform_device am3517_hecc_device = {
436 .name = "ti_hecc",
437 .id = -1,
438 .num_resources = ARRAY_SIZE(am3517_hecc_resources),
439 .resource = am3517_hecc_resources,
440 };
441
442 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
443 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
444 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
445 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
446 .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
447 .int_line = AM35XX_HECC_INT_LINE,
448 .version = AM35XX_HECC_VERSION,
449 };
450
am3517_evm_hecc_init(struct ti_hecc_platform_data * pdata)451 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
452 {
453 am3517_hecc_device.dev.platform_data = pdata;
454 platform_device_register(&am3517_hecc_device);
455 }
456
457 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
458 };
459
460 static struct omap2_hsmmc_info mmc[] = {
461 {
462 .mmc = 1,
463 .caps = MMC_CAP_4_BIT_DATA,
464 .gpio_cd = 127,
465 .gpio_wp = 126,
466 },
467 {
468 .mmc = 2,
469 .caps = MMC_CAP_4_BIT_DATA,
470 .gpio_cd = 128,
471 .gpio_wp = 129,
472 },
473 {} /* Terminator */
474 };
475
476
am3517_evm_init(void)477 static void __init am3517_evm_init(void)
478 {
479 omap_board_config = am3517_evm_config;
480 omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
481 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
482
483 am3517_evm_i2c_init();
484 omap_display_init(&am3517_evm_dss_data);
485 omap_serial_init();
486 omap_sdrc_init(NULL, NULL);
487
488 /* Configure GPIO for EHCI port */
489 omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
490 usbhs_init(&usbhs_bdata);
491 am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
492 /* DSS */
493 am3517_evm_display_init();
494
495 /* RTC - S35390A */
496 am3517_evm_rtc_init();
497
498 i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
499 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
500 /*Ethernet*/
501 am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
502
503 /* MUSB */
504 am3517_evm_musb_init();
505
506 /* MMC init function */
507 omap2_hsmmc_init(mmc);
508 }
509
510 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
511 .atag_offset = 0x100,
512 .reserve = omap_reserve,
513 .map_io = omap3_map_io,
514 .init_early = am35xx_init_early,
515 .init_irq = omap3_init_irq,
516 .handle_irq = omap3_intc_handle_irq,
517 .init_machine = am3517_evm_init,
518 .timer = &omap3_timer,
519 .restart = omap_prcm_restart,
520 MACHINE_END
521