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-tfp410.h>
 41
 42#include "am35xx-emac.h"
 43#include "mux.h"
 44#include "control.h"
 45#include "hsmmc.h"
 46
 47#define LCD_PANEL_PWR		176
 48#define LCD_PANEL_BKLIGHT_PWR	182
 49#define LCD_PANEL_PWM		181
 50
 51static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
 52	{
 53		I2C_BOARD_INFO("s35390a", 0x30),
 54	},
 55};
 56
 57/*
 58 * RTC - S35390A
 59 */
 60#define GPIO_RTCS35390A_IRQ	55
 61
 62static void __init am3517_evm_rtc_init(void)
 63{
 64	int r;
 65
 66	omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
 67
 68	r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
 69	if (r < 0) {
 70		printk(KERN_WARNING "failed to request GPIO#%d\n",
 71				GPIO_RTCS35390A_IRQ);
 72		return;
 73	}
 74
 75	am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
 76}
 77
 78/*
 79 * I2C GPIO Expander - TCA6416
 80 */
 81
 82/* Mounted on Base-Board */
 83static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
 84	.gpio_base	= OMAP_MAX_GPIO_LINES,
 85};
 86static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
 87	{
 88		I2C_BOARD_INFO("tlv320aic23", 0x1A),
 89	},
 90	{
 91		I2C_BOARD_INFO("tca6416", 0x21),
 92		.platform_data = &am3517evm_gpio_expander_info_0,
 93	},
 94};
 95
 96/* Mounted on UI Card */
 97static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
 98	.gpio_base	= OMAP_MAX_GPIO_LINES + 16,
 99};
100static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
101	.gpio_base	= OMAP_MAX_GPIO_LINES + 32,
102};
103static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
104	{
105		I2C_BOARD_INFO("tca6416", 0x20),
106		.platform_data = &am3517evm_ui_gpio_expander_info_1,
107	},
108	{
109		I2C_BOARD_INFO("tca6416", 0x21),
110		.platform_data = &am3517evm_ui_gpio_expander_info_2,
111	},
112};
113
114static int __init am3517_evm_i2c_init(void)
115{
116	omap_register_i2c_bus(1, 400, NULL, 0);
117	omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
118			ARRAY_SIZE(am3517evm_i2c2_boardinfo));
119	omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
120			ARRAY_SIZE(am3517evm_i2c3_boardinfo));
121
122	return 0;
123}
124
125static int lcd_enabled;
126static int dvi_enabled;
127
128#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
129		defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
130static struct gpio am3517_evm_dss_gpios[] __initdata = {
131	/* GPIO 182 = LCD Backlight Power */
132	{ LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
133	/* GPIO 181 = LCD Panel PWM */
134	{ LCD_PANEL_PWM,	 GPIOF_OUT_INIT_HIGH, "lcd bl enable"	  },
135	/* GPIO 176 = LCD Panel Power enable pin */
136	{ LCD_PANEL_PWR,	 GPIOF_OUT_INIT_HIGH, "dvi enable"	  },
137};
138
139static void __init am3517_evm_display_init(void)
140{
141	int r;
142
143	omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
144	omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
145	omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
146
147	r = gpio_request_array(am3517_evm_dss_gpios,
148			       ARRAY_SIZE(am3517_evm_dss_gpios));
149	if (r) {
150		printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
151		return;
152	}
153
154	printk(KERN_INFO "Display initialized successfully\n");
155}
156#else
157static void __init am3517_evm_display_init(void) {}
158#endif
159
160static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
161{
162	if (dvi_enabled) {
163		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
164		return -EINVAL;
165	}
166	gpio_set_value(LCD_PANEL_PWR, 1);
167	lcd_enabled = 1;
168
169	return 0;
170}
171
172static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
173{
174	gpio_set_value(LCD_PANEL_PWR, 0);
175	lcd_enabled = 0;
176}
177
178static struct panel_generic_dpi_data lcd_panel = {
179	.name			= "sharp_lq",
180	.platform_enable	= am3517_evm_panel_enable_lcd,
181	.platform_disable	= am3517_evm_panel_disable_lcd,
182};
183
184static struct omap_dss_device am3517_evm_lcd_device = {
185	.type			= OMAP_DISPLAY_TYPE_DPI,
186	.name			= "lcd",
187	.driver_name		= "generic_dpi_panel",
188	.data			= &lcd_panel,
189	.phy.dpi.data_lines 	= 16,
190};
191
192static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
193{
194	return 0;
195}
196
197static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
198{
199}
200
201static struct omap_dss_device am3517_evm_tv_device = {
202	.type 			= OMAP_DISPLAY_TYPE_VENC,
203	.name 			= "tv",
204	.driver_name		= "venc",
205	.phy.venc.type		= OMAP_DSS_VENC_TYPE_SVIDEO,
206	.platform_enable	= am3517_evm_panel_enable_tv,
207	.platform_disable	= am3517_evm_panel_disable_tv,
208};
209
210static struct tfp410_platform_data dvi_panel = {
211	.power_down_gpio	= -1,
212};
213
214static struct omap_dss_device am3517_evm_dvi_device = {
215	.type			= OMAP_DISPLAY_TYPE_DPI,
216	.name			= "dvi",
217	.driver_name		= "tfp410",
218	.data			= &dvi_panel,
219	.phy.dpi.data_lines	= 24,
220};
221
222static struct omap_dss_device *am3517_evm_dss_devices[] = {
223	&am3517_evm_lcd_device,
224	&am3517_evm_tv_device,
225	&am3517_evm_dvi_device,
226};
227
228static struct omap_dss_board_info am3517_evm_dss_data = {
229	.num_devices	= ARRAY_SIZE(am3517_evm_dss_devices),
230	.devices	= am3517_evm_dss_devices,
231	.default_device	= &am3517_evm_lcd_device,
232};
233
234/*
235 * Board initialization
236 */
237
238static struct omap_musb_board_data musb_board_data = {
239	.interface_type         = MUSB_INTERFACE_ULPI,
240	.mode                   = MUSB_OTG,
241	.power                  = 500,
242	.set_phy_power		= am35x_musb_phy_power,
243	.clear_irq		= am35x_musb_clear_irq,
244	.set_mode		= am35x_set_mode,
245	.reset			= am35x_musb_reset,
246};
247
248static __init void am3517_evm_musb_init(void)
249{
250	u32 devconf2;
251
252	/*
253	 * Set up USB clock/mode in the DEVCONF2 register.
254	 */
255	devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
256
257	/* USB2.0 PHY reference clock is 13 MHz */
258	devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
259	devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
260			| CONF2_DATPOL;
261
262	omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
263
264	usb_musb_init(&musb_board_data);
265}
266
267static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
268	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
269#if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
270		defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
271	.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
272#else
273	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
274#endif
275	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
276
277	.phy_reset  = true,
278	.reset_gpio_port[0]  = 57,
279	.reset_gpio_port[1]  = -EINVAL,
280	.reset_gpio_port[2]  = -EINVAL
281};
282
283#ifdef CONFIG_OMAP_MUX
284static struct omap_board_mux board_mux[] __initdata = {
285	/* USB OTG DRVVBUS offset = 0x212 */
286	OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
287	{ .reg_offset = OMAP_MUX_TERMINATOR },
288};
289#endif
290
291
292static struct resource am3517_hecc_resources[] = {
293	{
294		.start	= AM35XX_IPSS_HECC_BASE,
295		.end	= AM35XX_IPSS_HECC_BASE + 0x3FFF,
296		.flags	= IORESOURCE_MEM,
297	},
298	{
299		.start	= INT_35XX_HECC0_IRQ,
300		.end	= INT_35XX_HECC0_IRQ,
301		.flags	= IORESOURCE_IRQ,
302	},
303};
304
305static struct platform_device am3517_hecc_device = {
306	.name		= "ti_hecc",
307	.id		= -1,
308	.num_resources	= ARRAY_SIZE(am3517_hecc_resources),
309	.resource	= am3517_hecc_resources,
310};
311
312static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
313	.scc_hecc_offset	= AM35XX_HECC_SCC_HECC_OFFSET,
314	.scc_ram_offset		= AM35XX_HECC_SCC_RAM_OFFSET,
315	.hecc_ram_offset	= AM35XX_HECC_RAM_OFFSET,
316	.mbx_offset		= AM35XX_HECC_MBOX_OFFSET,
317	.int_line		= AM35XX_HECC_INT_LINE,
318	.version		= AM35XX_HECC_VERSION,
319};
320
321static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
322{
323	am3517_hecc_device.dev.platform_data = pdata;
324	platform_device_register(&am3517_hecc_device);
325}
326
327static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
328};
329
330static struct omap2_hsmmc_info mmc[] = {
331	{
332		.mmc		= 1,
333		.caps		= MMC_CAP_4_BIT_DATA,
334		.gpio_cd	= 127,
335		.gpio_wp	= 126,
336	},
337	{
338		.mmc		= 2,
339		.caps		= MMC_CAP_4_BIT_DATA,
340		.gpio_cd	= 128,
341		.gpio_wp	= 129,
342	},
343	{}      /* Terminator */
344};
345
346
347static void __init am3517_evm_init(void)
348{
349	omap_board_config = am3517_evm_config;
350	omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
351	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
352
353	am3517_evm_i2c_init();
354	omap_display_init(&am3517_evm_dss_data);
355	omap_serial_init();
356	omap_sdrc_init(NULL, NULL);
357
358	/* Configure GPIO for EHCI port */
359	omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
360	usbhs_init(&usbhs_bdata);
361	am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
362	/* DSS */
363	am3517_evm_display_init();
364
365	/* RTC - S35390A */
366	am3517_evm_rtc_init();
367
368	i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
369				ARRAY_SIZE(am3517evm_i2c1_boardinfo));
370	/*Ethernet*/
371	am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
372
373	/* MUSB */
374	am3517_evm_musb_init();
375
376	/* MMC init function */
377	omap_hsmmc_init(mmc);
378}
379
380MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
381	.atag_offset	= 0x100,
382	.reserve	= omap_reserve,
383	.map_io		= omap3_map_io,
384	.init_early	= am35xx_init_early,
385	.init_irq	= omap3_init_irq,
386	.handle_irq	= omap3_intc_handle_irq,
387	.init_machine	= am3517_evm_init,
388	.init_late	= am35xx_init_late,
389	.timer		= &omap3_timer,
390	.restart	= omap_prcm_restart,
391MACHINE_END