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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/platform_data/pca953x.h>
25 #include <linux/can/platform/ti_hecc.h>
26 #include <linux/davinci_emac.h>
27 #include <linux/mmc/host.h>
28 #include <linux/usb/musb.h>
29 #include <linux/platform_data/gpio-omap.h>
30 
31 #include "am35xx.h"
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35 
36 #include "common.h"
37 #include <video/omapdss.h>
38 #include <video/omap-panel-data.h>
39 
40 #include "am35xx-emac.h"
41 #include "mux.h"
42 #include "control.h"
43 #include "hsmmc.h"
44 
45 #define LCD_PANEL_PWR		176
46 #define LCD_PANEL_BKLIGHT_PWR	182
47 #define LCD_PANEL_PWM		181
48 
49 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
50 	{
51 		I2C_BOARD_INFO("s35390a", 0x30),
52 	},
53 };
54 
55 /*
56  * RTC - S35390A
57  */
58 #define GPIO_RTCS35390A_IRQ	55
59 
am3517_evm_rtc_init(void)60 static void __init am3517_evm_rtc_init(void)
61 {
62 	int r;
63 
64 	omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
65 
66 	r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
67 	if (r < 0) {
68 		printk(KERN_WARNING "failed to request GPIO#%d\n",
69 				GPIO_RTCS35390A_IRQ);
70 		return;
71 	}
72 
73 	am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
74 }
75 
76 /*
77  * I2C GPIO Expander - TCA6416
78  */
79 
80 /* Mounted on Base-Board */
81 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
82 	.gpio_base	= OMAP_MAX_GPIO_LINES,
83 };
84 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
85 	{
86 		I2C_BOARD_INFO("tlv320aic23", 0x1A),
87 	},
88 	{
89 		I2C_BOARD_INFO("tca6416", 0x21),
90 		.platform_data = &am3517evm_gpio_expander_info_0,
91 	},
92 };
93 
94 /* Mounted on UI Card */
95 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
96 	.gpio_base	= OMAP_MAX_GPIO_LINES + 16,
97 };
98 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
99 	.gpio_base	= OMAP_MAX_GPIO_LINES + 32,
100 };
101 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
102 	{
103 		I2C_BOARD_INFO("tca6416", 0x20),
104 		.platform_data = &am3517evm_ui_gpio_expander_info_1,
105 	},
106 	{
107 		I2C_BOARD_INFO("tca6416", 0x21),
108 		.platform_data = &am3517evm_ui_gpio_expander_info_2,
109 	},
110 };
111 
am3517_evm_i2c_init(void)112 static int __init am3517_evm_i2c_init(void)
113 {
114 	omap_register_i2c_bus(1, 400, NULL, 0);
115 	omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
116 			ARRAY_SIZE(am3517evm_i2c2_boardinfo));
117 	omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
118 			ARRAY_SIZE(am3517evm_i2c3_boardinfo));
119 
120 	return 0;
121 }
122 
123 static const struct display_timing am3517_evm_lcd_videomode = {
124 	.pixelclock	= { 0, 9000000, 0 },
125 
126 	.hactive = { 0, 480, 0 },
127 	.hfront_porch = { 0, 3, 0 },
128 	.hback_porch = { 0, 2, 0 },
129 	.hsync_len = { 0, 42, 0 },
130 
131 	.vactive = { 0, 272, 0 },
132 	.vfront_porch = { 0, 3, 0 },
133 	.vback_porch = { 0, 2, 0 },
134 	.vsync_len = { 0, 11, 0 },
135 
136 	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
137 		DISPLAY_FLAGS_DE_LOW | DISPLAY_FLAGS_PIXDATA_POSEDGE,
138 };
139 
140 static struct panel_dpi_platform_data am3517_evm_lcd_pdata = {
141 	.name                   = "lcd",
142 	.source                 = "dpi.0",
143 
144 	.data_lines		= 16,
145 
146 	.display_timing		= &am3517_evm_lcd_videomode,
147 
148 	.enable_gpio		= LCD_PANEL_PWR,
149 	.backlight_gpio		= LCD_PANEL_BKLIGHT_PWR,
150 };
151 
152 static struct platform_device am3517_evm_lcd_device = {
153 	.name                   = "panel-dpi",
154 	.id                     = 0,
155 	.dev.platform_data      = &am3517_evm_lcd_pdata,
156 };
157 
158 static struct connector_dvi_platform_data am3517_evm_dvi_connector_pdata = {
159 	.name                   = "dvi",
160 	.source                 = "tfp410.0",
161 	.i2c_bus_num            = -1,
162 };
163 
164 static struct platform_device am3517_evm_dvi_connector_device = {
165 	.name                   = "connector-dvi",
166 	.id                     = 0,
167 	.dev.platform_data      = &am3517_evm_dvi_connector_pdata,
168 };
169 
170 static struct encoder_tfp410_platform_data am3517_evm_tfp410_pdata = {
171 	.name                   = "tfp410.0",
172 	.source                 = "dpi.0",
173 	.data_lines             = 24,
174 	.power_down_gpio        = -1,
175 };
176 
177 static struct platform_device am3517_evm_tfp410_device = {
178 	.name                   = "tfp410",
179 	.id                     = 0,
180 	.dev.platform_data      = &am3517_evm_tfp410_pdata,
181 };
182 
183 static struct connector_atv_platform_data am3517_evm_tv_pdata = {
184 	.name = "tv",
185 	.source = "venc.0",
186 	.connector_type = OMAP_DSS_VENC_TYPE_SVIDEO,
187 	.invert_polarity = false,
188 };
189 
190 static struct platform_device am3517_evm_tv_connector_device = {
191 	.name                   = "connector-analog-tv",
192 	.id                     = 0,
193 	.dev.platform_data      = &am3517_evm_tv_pdata,
194 };
195 
196 static struct omap_dss_board_info am3517_evm_dss_data = {
197 	.default_display_name = "lcd",
198 };
199 
am3517_evm_display_init(void)200 static void __init am3517_evm_display_init(void)
201 {
202 	gpio_request_one(LCD_PANEL_PWM, GPIOF_OUT_INIT_HIGH, "lcd panel pwm");
203 
204 	omap_display_init(&am3517_evm_dss_data);
205 
206 	platform_device_register(&am3517_evm_tfp410_device);
207 	platform_device_register(&am3517_evm_dvi_connector_device);
208 	platform_device_register(&am3517_evm_lcd_device);
209 	platform_device_register(&am3517_evm_tv_connector_device);
210 }
211 
212 /*
213  * Board initialization
214  */
215 
216 static struct omap_musb_board_data musb_board_data = {
217 	.interface_type         = MUSB_INTERFACE_ULPI,
218 	.mode                   = MUSB_OTG,
219 	.power                  = 500,
220 	.set_phy_power		= am35x_musb_phy_power,
221 	.clear_irq		= am35x_musb_clear_irq,
222 	.set_mode		= am35x_set_mode,
223 	.reset			= am35x_musb_reset,
224 };
225 
am3517_evm_musb_init(void)226 static __init void am3517_evm_musb_init(void)
227 {
228 	u32 devconf2;
229 
230 	/*
231 	 * Set up USB clock/mode in the DEVCONF2 register.
232 	 */
233 	devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
234 
235 	/* USB2.0 PHY reference clock is 13 MHz */
236 	devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
237 	devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
238 			| CONF2_DATPOL;
239 
240 	omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
241 
242 	usb_musb_init(&musb_board_data);
243 }
244 
am3517_evm_mcbsp1_init(void)245 static __init void am3517_evm_mcbsp1_init(void)
246 {
247 	u32 devconf0;
248 
249 	/* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */
250 	devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
251 	devconf0 |=  OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK;
252 	omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0);
253 }
254 
255 static struct usbhs_phy_data phy_data[] __initdata = {
256 	{
257 		.port = 1,
258 		.reset_gpio = 57,
259 		.vcc_gpio = -EINVAL,
260 	},
261 };
262 
263 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
264 	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
265 	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
266 };
267 
268 #ifdef CONFIG_OMAP_MUX
269 static struct omap_board_mux board_mux[] __initdata = {
270 	/* USB OTG DRVVBUS offset = 0x212 */
271 	OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
272 	{ .reg_offset = OMAP_MUX_TERMINATOR },
273 };
274 #endif
275 
276 
277 static struct resource am3517_hecc_resources[] = {
278 	{
279 		.start	= AM35XX_IPSS_HECC_BASE,
280 		.end	= AM35XX_IPSS_HECC_BASE + 0x3FFF,
281 		.flags	= IORESOURCE_MEM,
282 	},
283 	{
284 		.start	= 24 + OMAP_INTC_START,
285 		.flags	= IORESOURCE_IRQ,
286 	},
287 };
288 
289 static struct platform_device am3517_hecc_device = {
290 	.name		= "ti_hecc",
291 	.id		= -1,
292 	.num_resources	= ARRAY_SIZE(am3517_hecc_resources),
293 	.resource	= am3517_hecc_resources,
294 };
295 
296 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
297 	.scc_hecc_offset	= AM35XX_HECC_SCC_HECC_OFFSET,
298 	.scc_ram_offset		= AM35XX_HECC_SCC_RAM_OFFSET,
299 	.hecc_ram_offset	= AM35XX_HECC_RAM_OFFSET,
300 	.mbx_offset		= AM35XX_HECC_MBOX_OFFSET,
301 	.int_line		= AM35XX_HECC_INT_LINE,
302 	.version		= AM35XX_HECC_VERSION,
303 };
304 
am3517_evm_hecc_init(struct ti_hecc_platform_data * pdata)305 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
306 {
307 	am3517_hecc_device.dev.platform_data = pdata;
308 	platform_device_register(&am3517_hecc_device);
309 }
310 
311 static struct omap2_hsmmc_info mmc[] = {
312 	{
313 		.mmc		= 1,
314 		.caps		= MMC_CAP_4_BIT_DATA,
315 		.gpio_cd	= 127,
316 		.gpio_wp	= 126,
317 	},
318 	{
319 		.mmc		= 2,
320 		.caps		= MMC_CAP_4_BIT_DATA,
321 		.gpio_cd	= 128,
322 		.gpio_wp	= 129,
323 	},
324 	{}      /* Terminator */
325 };
326 
am3517_evm_init(void)327 static void __init am3517_evm_init(void)
328 {
329 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
330 
331 	am3517_evm_i2c_init();
332 
333 	am3517_evm_display_init();
334 
335 	omap_serial_init();
336 	omap_sdrc_init(NULL, NULL);
337 
338 	/* Configure GPIO for EHCI port */
339 	omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
340 
341 	usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
342 	usbhs_init(&usbhs_bdata);
343 	am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
344 
345 	/* RTC - S35390A */
346 	am3517_evm_rtc_init();
347 
348 	i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
349 				ARRAY_SIZE(am3517evm_i2c1_boardinfo));
350 	/*Ethernet*/
351 	am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
352 
353 	/* MUSB */
354 	am3517_evm_musb_init();
355 
356 	/* McBSP1 */
357 	am3517_evm_mcbsp1_init();
358 
359 	/* MMC init function */
360 	omap_hsmmc_init(mmc);
361 }
362 
363 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
364 	.atag_offset	= 0x100,
365 	.reserve	= omap_reserve,
366 	.map_io		= omap3_map_io,
367 	.init_early	= am35xx_init_early,
368 	.init_irq	= omap3_init_irq,
369 	.init_machine	= am3517_evm_init,
370 	.init_late	= am35xx_init_late,
371 	.init_time	= omap3_sync32k_timer_init,
372 	.restart	= omap3xxx_restart,
373 MACHINE_END
374