Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
[sfrench/cifs-2.6.git] / arch / arm / mach-imx / eukrea_mbimx27-baseboard.c
1 /*
2  * Copyright (C) 2009-2010 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/irq.h>
24 #include <linux/platform_device.h>
25 #include <linux/spi/spi.h>
26 #include <linux/spi/ads7846.h>
27 #include <linux/backlight.h>
28 #include <video/platform_lcd.h>
29
30 #include <asm/mach/arch.h>
31
32 #include <mach/common.h>
33 #include <mach/iomux-mx27.h>
34 #include <mach/hardware.h>
35
36 #include "devices-imx27.h"
37
38 static const int eukrea_mbimx27_pins[] __initconst = {
39         /* UART2 */
40         PE3_PF_UART2_CTS,
41         PE4_PF_UART2_RTS,
42         PE6_PF_UART2_TXD,
43         PE7_PF_UART2_RXD,
44         /* UART3 */
45         PE8_PF_UART3_TXD,
46         PE9_PF_UART3_RXD,
47         PE10_PF_UART3_CTS,
48         PE11_PF_UART3_RTS,
49         /* UART4 */
50 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
51         PB26_AF_UART4_RTS,
52         PB28_AF_UART4_TXD,
53         PB29_AF_UART4_CTS,
54         PB31_AF_UART4_RXD,
55 #endif
56         /* SDHC1*/
57         PE18_PF_SD1_D0,
58         PE19_PF_SD1_D1,
59         PE20_PF_SD1_D2,
60         PE21_PF_SD1_D3,
61         PE22_PF_SD1_CMD,
62         PE23_PF_SD1_CLK,
63         /* display */
64         PA5_PF_LSCLK,
65         PA6_PF_LD0,
66         PA7_PF_LD1,
67         PA8_PF_LD2,
68         PA9_PF_LD3,
69         PA10_PF_LD4,
70         PA11_PF_LD5,
71         PA12_PF_LD6,
72         PA13_PF_LD7,
73         PA14_PF_LD8,
74         PA15_PF_LD9,
75         PA16_PF_LD10,
76         PA17_PF_LD11,
77         PA18_PF_LD12,
78         PA19_PF_LD13,
79         PA20_PF_LD14,
80         PA21_PF_LD15,
81         PA22_PF_LD16,
82         PA23_PF_LD17,
83         PA28_PF_HSYNC,
84         PA29_PF_VSYNC,
85         PA30_PF_CONTRAST,
86         PA31_PF_OE_ACD,
87         /* SPI1 */
88         PD29_PF_CSPI1_SCLK,
89         PD30_PF_CSPI1_MISO,
90         PD31_PF_CSPI1_MOSI,
91         /* SSI4 */
92 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
93         || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
94         PC16_PF_SSI4_FS,
95         PC17_PF_SSI4_RXD | GPIO_PUEN,
96         PC18_PF_SSI4_TXD | GPIO_PUEN,
97         PC19_PF_SSI4_CLK,
98 #endif
99 };
100
101 static const uint32_t eukrea_mbimx27_keymap[] = {
102         KEY(0, 0, KEY_UP),
103         KEY(0, 1, KEY_DOWN),
104         KEY(1, 0, KEY_RIGHT),
105         KEY(1, 1, KEY_LEFT),
106 };
107
108 static const struct matrix_keymap_data
109 eukrea_mbimx27_keymap_data __initconst = {
110         .keymap         = eukrea_mbimx27_keymap,
111         .keymap_size    = ARRAY_SIZE(eukrea_mbimx27_keymap),
112 };
113
114 static const struct gpio_led eukrea_mbimx27_gpio_leds[] __initconst = {
115         {
116                 .name                   = "led1",
117                 .default_trigger        = "heartbeat",
118                 .active_low             = 1,
119                 .gpio                   = GPIO_PORTF | 16,
120         },
121         {
122                 .name                   = "led2",
123                 .default_trigger        = "none",
124                 .active_low             = 1,
125                 .gpio                   = GPIO_PORTF | 19,
126         },
127 };
128
129 static const struct gpio_led_platform_data
130                 eukrea_mbimx27_gpio_led_info __initconst = {
131         .leds           = eukrea_mbimx27_gpio_leds,
132         .num_leds       = ARRAY_SIZE(eukrea_mbimx27_gpio_leds),
133 };
134
135 static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
136         {
137                 .mode = {
138                         .name           = "CMO-QVGA",
139                         .refresh        = 60,
140                         .xres           = 320,
141                         .yres           = 240,
142                         .pixclock       = 156000,
143                         .hsync_len      = 30,
144                         .left_margin    = 38,
145                         .right_margin   = 20,
146                         .vsync_len      = 3,
147                         .upper_margin   = 15,
148                         .lower_margin   = 4,
149                 },
150                 .pcr            = 0xFAD08B80,
151                 .bpp            = 16,
152         }, {
153                 .mode = {
154                         .name           = "DVI-VGA",
155                         .refresh        = 60,
156                         .xres           = 640,
157                         .yres           = 480,
158                         .pixclock       = 32000,
159                         .hsync_len      = 1,
160                         .left_margin    = 35,
161                         .right_margin   = 0,
162                         .vsync_len      = 1,
163                         .upper_margin   = 7,
164                         .lower_margin   = 0,
165                 },
166                 .pcr            = 0xFA208B80,
167                 .bpp            = 16,
168         }, {
169                 .mode = {
170                         .name           = "DVI-SVGA",
171                         .refresh        = 60,
172                         .xres           = 800,
173                         .yres           = 600,
174                         .pixclock       = 25000,
175                         .hsync_len      = 1,
176                         .left_margin    = 35,
177                         .right_margin   = 0,
178                         .vsync_len      = 1,
179                         .upper_margin   = 7,
180                         .lower_margin   = 0,
181                 },
182                 .pcr            = 0xFA208B80,
183                 .bpp            = 16,
184         },
185 };
186
187 static const struct imx_fb_platform_data eukrea_mbimx27_fb_data __initconst = {
188         .mode = eukrea_mbimx27_modes,
189         .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
190
191         .pwmr           = 0x00A903FF,
192         .lscr1          = 0x00120300,
193         .dmacr          = 0x00040060,
194 };
195
196 static void eukrea_mbimx27_bl_set_intensity(int intensity)
197 {
198         if (intensity)
199                 gpio_direction_output(GPIO_PORTE | 5, 1);
200         else
201                 gpio_direction_output(GPIO_PORTE | 5, 0);
202 }
203
204 static struct generic_bl_info eukrea_mbimx27_bl_info = {
205         .name                   = "eukrea_mbimx27-bl",
206         .max_intensity          = 0xff,
207         .default_intensity      = 0xff,
208         .set_bl_intensity       = eukrea_mbimx27_bl_set_intensity,
209 };
210
211 static struct platform_device eukrea_mbimx27_bl_dev = {
212         .name                   = "generic-bl",
213         .id                     = 1,
214         .dev = {
215                 .platform_data  = &eukrea_mbimx27_bl_info,
216         },
217 };
218
219 static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
220                                    unsigned int power)
221 {
222         if (power)
223                 gpio_direction_output(GPIO_PORTA | 25, 1);
224         else
225                 gpio_direction_output(GPIO_PORTA | 25, 0);
226 }
227
228 static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
229         .set_power              = eukrea_mbimx27_lcd_power_set,
230 };
231
232 static struct platform_device eukrea_mbimx27_lcd_powerdev = {
233         .name                   = "platform-lcd",
234         .dev.platform_data      = &eukrea_mbimx27_lcd_power_data,
235 };
236
237 static const struct imxuart_platform_data uart_pdata __initconst = {
238         .flags = IMXUART_HAVE_RTSCTS,
239 };
240
241 #define ADS7846_PENDOWN (GPIO_PORTD | 25)
242
243 static void __maybe_unused ads7846_dev_init(void)
244 {
245         if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
246                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
247                 return;
248         }
249         gpio_direction_input(ADS7846_PENDOWN);
250 }
251
252 static int ads7846_get_pendown_state(void)
253 {
254         return !gpio_get_value(ADS7846_PENDOWN);
255 }
256
257 static struct ads7846_platform_data ads7846_config __initdata = {
258         .get_pendown_state      = ads7846_get_pendown_state,
259         .keep_vref_on           = 1,
260 };
261
262 static struct spi_board_info __maybe_unused
263                 eukrea_mbimx27_spi_board_info[] __initdata = {
264         [0] = {
265                 .modalias       = "ads7846",
266                 .bus_num        = 0,
267                 .chip_select    = 0,
268                 .max_speed_hz   = 1500000,
269                 .irq            = IRQ_GPIOD(25),
270                 .platform_data  = &ads7846_config,
271                 .mode           = SPI_MODE_2,
272         },
273 };
274
275 static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
276
277 static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
278         .chipselect     = eukrea_mbimx27_spi_cs,
279         .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
280 };
281
282 static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
283         {
284                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
285         },
286 };
287
288 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
289         .dat3_card_detect = 1,
290 };
291
292 static const
293 struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata __initconst = {
294         .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
295 };
296
297 /*
298  * system init for baseboard usage. Will be called by cpuimx27 init.
299  *
300  * Add platform devices present on this baseboard and init
301  * them from CPU side as far as required to use them later on
302  */
303 void __init eukrea_mbimx27_baseboard_init(void)
304 {
305         mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
306                 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
307
308         imx27_add_imx_uart1(&uart_pdata);
309         imx27_add_imx_uart2(&uart_pdata);
310 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
311         imx27_add_imx_uart3(&uart_pdata);
312 #endif
313
314         imx27_add_imx_fb(&eukrea_mbimx27_fb_data);
315         imx27_add_mxc_mmc(0, &sdhc_pdata);
316
317         i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
318                                 ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
319
320         imx27_add_imx_ssi(0, &eukrea_mbimx27_ssi_pdata);
321
322 #if defined(CONFIG_TOUCHSCREEN_ADS7846) \
323         || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
324         /* ADS7846 Touchscreen controller init */
325         mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
326         ads7846_dev_init();
327 #endif
328
329         /* SPI_CS0 init */
330         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
331         imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
332         spi_register_board_info(eukrea_mbimx27_spi_board_info,
333                         ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
334
335         /* Leds configuration */
336         mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
337         mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
338         /* Backlight */
339         mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
340         gpio_request(GPIO_PORTE | 5, "backlight");
341         platform_device_register(&eukrea_mbimx27_bl_dev);
342         /* LCD Reset */
343         mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
344         gpio_request(GPIO_PORTA | 25, "lcd_enable");
345         platform_device_register(&eukrea_mbimx27_lcd_powerdev);
346
347         imx27_add_imx_keypad(&eukrea_mbimx27_keymap_data);
348
349         gpio_led_register_device(-1, &eukrea_mbimx27_gpio_led_info);
350 }