1 /*
2  * Copyright (C) 2010 Eric Benard - eric@eukrea.com
3  *
4  * Based on pcm970-baseboard.c which is :
5  * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
19  * MA 02110-1301, USA.
20  */
21 
22 #include <linux/gpio.h>
23 #include <linux/leds.h>
24 #include <linux/platform_device.h>
25 #include <linux/input.h>
26 #include <video/platform_lcd.h>
27 
28 #include <mach/hardware.h>
29 #include <mach/iomux-mx25.h>
30 #include <mach/common.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <mach/mx25.h>
34 
35 #include "devices-imx25.h"
36 
37 static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
38 	/* LCD */
39 	MX25_PAD_LD0__LD0,
40 	MX25_PAD_LD1__LD1,
41 	MX25_PAD_LD2__LD2,
42 	MX25_PAD_LD3__LD3,
43 	MX25_PAD_LD4__LD4,
44 	MX25_PAD_LD5__LD5,
45 	MX25_PAD_LD6__LD6,
46 	MX25_PAD_LD7__LD7,
47 	MX25_PAD_LD8__LD8,
48 	MX25_PAD_LD9__LD9,
49 	MX25_PAD_LD10__LD10,
50 	MX25_PAD_LD11__LD11,
51 	MX25_PAD_LD12__LD12,
52 	MX25_PAD_LD13__LD13,
53 	MX25_PAD_LD14__LD14,
54 	MX25_PAD_LD15__LD15,
55 	MX25_PAD_GPIO_E__LD16,
56 	MX25_PAD_GPIO_F__LD17,
57 	MX25_PAD_HSYNC__HSYNC,
58 	MX25_PAD_VSYNC__VSYNC,
59 	MX25_PAD_LSCLK__LSCLK,
60 	MX25_PAD_OE_ACD__OE_ACD,
61 	MX25_PAD_CONTRAST__CONTRAST,
62 	/* LCD_PWR */
63 	MX25_PAD_PWM__GPIO_1_26,
64 	/* LED */
65 	MX25_PAD_POWER_FAIL__GPIO_3_19,
66 	/* SWITCH */
67 	MX25_PAD_VSTBY_ACK__GPIO_3_18,
68 	/* UART2 */
69 	MX25_PAD_UART2_RTS__UART2_RTS,
70 	MX25_PAD_UART2_CTS__UART2_CTS,
71 	MX25_PAD_UART2_TXD__UART2_TXD,
72 	MX25_PAD_UART2_RXD__UART2_RXD,
73 	/* SD1 */
74 	MX25_PAD_SD1_CMD__SD1_CMD,
75 	MX25_PAD_SD1_CLK__SD1_CLK,
76 	MX25_PAD_SD1_DATA0__SD1_DATA0,
77 	MX25_PAD_SD1_DATA1__SD1_DATA1,
78 	MX25_PAD_SD1_DATA2__SD1_DATA2,
79 	MX25_PAD_SD1_DATA3__SD1_DATA3,
80 	/* SD1 CD */
81 	MX25_PAD_DE_B__GPIO_2_20,
82 	/* I2S */
83 	MX25_PAD_KPP_COL3__AUD5_TXFS,
84 	MX25_PAD_KPP_COL2__AUD5_TXC,
85 	MX25_PAD_KPP_COL1__AUD5_RXD,
86 	MX25_PAD_KPP_COL0__AUD5_TXD,
87 	/* CAN */
88 	MX25_PAD_GPIO_D__CAN2_RX,
89 	MX25_PAD_GPIO_C__CAN2_TX,
90 };
91 
92 #define GPIO_LED1	83
93 #define GPIO_SWITCH1	82
94 #define GPIO_SD1CD	52
95 #define GPIO_LCDPWR	26
96 
97 static struct imx_fb_videomode eukrea_mximxsd_modes[] = {
98 	{
99 		.mode	= {
100 			.name		= "CMO-QVGA",
101 			.refresh	= 60,
102 			.xres		= 320,
103 			.yres		= 240,
104 			.pixclock	= KHZ2PICOS(6500),
105 			.left_margin	= 30,
106 			.right_margin	= 38,
107 			.upper_margin	= 20,
108 			.lower_margin	= 3,
109 			.hsync_len	= 15,
110 			.vsync_len	= 4,
111 		},
112 		.bpp	= 16,
113 		.pcr	= 0xCAD08B80,
114 	}, {
115 		.mode = {
116 			.name		= "DVI-VGA",
117 			.refresh	= 60,
118 			.xres		= 640,
119 			.yres		= 480,
120 			.pixclock	= 32000,
121 			.hsync_len	= 7,
122 			.left_margin	= 100,
123 			.right_margin	= 100,
124 			.vsync_len	= 7,
125 			.upper_margin	= 7,
126 			.lower_margin	= 100,
127 		},
128 		.pcr		= 0xFA208B80,
129 		.bpp		= 16,
130 	}, {
131 		.mode = {
132 			.name		= "DVI-SVGA",
133 			.refresh	= 60,
134 			.xres		= 800,
135 			.yres		= 600,
136 			.pixclock	= 25000,
137 			.hsync_len	= 7,
138 			.left_margin	= 75,
139 			.right_margin	= 75,
140 			.vsync_len	= 7,
141 			.upper_margin	= 7,
142 			.lower_margin	= 75,
143 		},
144 		.pcr		= 0xFA208B80,
145 		.bpp		= 16,
146 	},
147 };
148 
149 static const struct imx_fb_platform_data eukrea_mximxsd_fb_pdata __initconst = {
150 	.mode		= eukrea_mximxsd_modes,
151 	.num_modes	= ARRAY_SIZE(eukrea_mximxsd_modes),
152 	.pwmr		= 0x00A903FF,
153 	.lscr1		= 0x00120300,
154 	.dmacr		= 0x00040060,
155 };
156 
eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data * pd,unsigned int power)157 static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
158 				   unsigned int power)
159 {
160 	if (power)
161 		gpio_direction_output(GPIO_LCDPWR, 1);
162 	else
163 		gpio_direction_output(GPIO_LCDPWR, 0);
164 }
165 
166 static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
167 	.set_power		= eukrea_mbimxsd_lcd_power_set,
168 };
169 
170 static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
171 	.name			= "platform-lcd",
172 	.dev.platform_data	= &eukrea_mbimxsd_lcd_power_data,
173 };
174 
175 static const struct gpio_led eukrea_mbimxsd_leds[] __initconst = {
176 	{
177 		.name			= "led1",
178 		.default_trigger	= "heartbeat",
179 		.active_low		= 1,
180 		.gpio			= GPIO_LED1,
181 	},
182 };
183 
184 static const struct gpio_led_platform_data
185 		eukrea_mbimxsd_led_info __initconst = {
186 	.leds		= eukrea_mbimxsd_leds,
187 	.num_leds	= ARRAY_SIZE(eukrea_mbimxsd_leds),
188 };
189 
190 static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
191 	{
192 		.gpio		= GPIO_SWITCH1,
193 		.code		= BTN_0,
194 		.desc		= "BP1",
195 		.active_low	= 1,
196 		.wakeup		= 1,
197 	},
198 };
199 
200 static const struct gpio_keys_platform_data
201 		eukrea_mbimxsd_button_data __initconst = {
202 	.buttons	= eukrea_mbimxsd_gpio_buttons,
203 	.nbuttons	= ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
204 };
205 
206 static struct platform_device *platform_devices[] __initdata = {
207 	&eukrea_mbimxsd_lcd_powerdev,
208 };
209 
210 static const struct imxuart_platform_data uart_pdata __initconst = {
211 	.flags = IMXUART_HAVE_RTSCTS,
212 };
213 
214 static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
215 	{
216 		I2C_BOARD_INFO("tlv320aic23", 0x1a),
217 	},
218 };
219 
220 static const
221 struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = {
222 	.flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
223 };
224 
225 static struct esdhc_platform_data sd1_pdata = {
226 	.cd_gpio = GPIO_SD1CD,
227 	.cd_type = ESDHC_CD_GPIO,
228 	.wp_type = ESDHC_WP_NONE,
229 };
230 
231 /*
232  * system init for baseboard usage. Will be called by cpuimx25 init.
233  *
234  * Add platform devices present on this baseboard and init
235  * them from CPU side as far as required to use them later on
236  */
eukrea_mbimxsd25_baseboard_init(void)237 void __init eukrea_mbimxsd25_baseboard_init(void)
238 {
239 	if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
240 			ARRAY_SIZE(eukrea_mbimxsd_pads)))
241 		printk(KERN_ERR "error setting mbimxsd pads !\n");
242 
243 	imx25_add_imx_uart1(&uart_pdata);
244 	imx25_add_imx_fb(&eukrea_mximxsd_fb_pdata);
245 	imx25_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
246 
247 	imx25_add_flexcan1(NULL);
248 	imx25_add_sdhci_esdhc_imx(0, &sd1_pdata);
249 
250 	gpio_request(GPIO_LED1, "LED1");
251 	gpio_direction_output(GPIO_LED1, 1);
252 	gpio_free(GPIO_LED1);
253 
254 	gpio_request(GPIO_SWITCH1, "SWITCH1");
255 	gpio_direction_input(GPIO_SWITCH1);
256 	gpio_free(GPIO_SWITCH1);
257 
258 	gpio_request(GPIO_LCDPWR, "LCDPWR");
259 	gpio_direction_output(GPIO_LCDPWR, 1);
260 	gpio_free(GPIO_SWITCH1);
261 
262 	i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
263 				ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
264 
265 	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
266 	gpio_led_register_device(-1, &eukrea_mbimxsd_led_info);
267 	imx_add_gpio_keys(&eukrea_mbimxsd_button_data);
268 }
269