Merge branch 'btrfs-3.0' into for-linus
[pandora-kernel.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 #include <mach/audmux.h>
36
37 #include "devices-imx27.h"
38
39 static const int eukrea_mbimx27_pins[] __initconst = {
40         /* UART2 */
41         PE3_PF_UART2_CTS,
42         PE4_PF_UART2_RTS,
43         PE6_PF_UART2_TXD,
44         PE7_PF_UART2_RXD,
45         /* UART3 */
46         PE8_PF_UART3_TXD,
47         PE9_PF_UART3_RXD,
48         PE10_PF_UART3_CTS,
49         PE11_PF_UART3_RTS,
50         /* UART4 */
51 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
52         PB26_AF_UART4_RTS,
53         PB28_AF_UART4_TXD,
54         PB29_AF_UART4_CTS,
55         PB31_AF_UART4_RXD,
56 #endif
57         /* SDHC1*/
58         PE18_PF_SD1_D0,
59         PE19_PF_SD1_D1,
60         PE20_PF_SD1_D2,
61         PE21_PF_SD1_D3,
62         PE22_PF_SD1_CMD,
63         PE23_PF_SD1_CLK,
64         /* display */
65         PA5_PF_LSCLK,
66         PA6_PF_LD0,
67         PA7_PF_LD1,
68         PA8_PF_LD2,
69         PA9_PF_LD3,
70         PA10_PF_LD4,
71         PA11_PF_LD5,
72         PA12_PF_LD6,
73         PA13_PF_LD7,
74         PA14_PF_LD8,
75         PA15_PF_LD9,
76         PA16_PF_LD10,
77         PA17_PF_LD11,
78         PA18_PF_LD12,
79         PA19_PF_LD13,
80         PA20_PF_LD14,
81         PA21_PF_LD15,
82         PA22_PF_LD16,
83         PA23_PF_LD17,
84         PA28_PF_HSYNC,
85         PA29_PF_VSYNC,
86         PA30_PF_CONTRAST,
87         PA31_PF_OE_ACD,
88         /* SPI1 */
89         PD29_PF_CSPI1_SCLK,
90         PD30_PF_CSPI1_MISO,
91         PD31_PF_CSPI1_MOSI,
92         /* SSI4 */
93 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
94         || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
95         PC16_PF_SSI4_FS,
96         PC17_PF_SSI4_RXD | GPIO_PUEN,
97         PC18_PF_SSI4_TXD | GPIO_PUEN,
98         PC19_PF_SSI4_CLK,
99 #endif
100 };
101
102 static const uint32_t eukrea_mbimx27_keymap[] = {
103         KEY(0, 0, KEY_UP),
104         KEY(0, 1, KEY_DOWN),
105         KEY(1, 0, KEY_RIGHT),
106         KEY(1, 1, KEY_LEFT),
107 };
108
109 static const struct matrix_keymap_data
110 eukrea_mbimx27_keymap_data __initconst = {
111         .keymap         = eukrea_mbimx27_keymap,
112         .keymap_size    = ARRAY_SIZE(eukrea_mbimx27_keymap),
113 };
114
115 static const struct gpio_led eukrea_mbimx27_gpio_leds[] __initconst = {
116         {
117                 .name                   = "led1",
118                 .default_trigger        = "heartbeat",
119                 .active_low             = 1,
120                 .gpio                   = GPIO_PORTF | 16,
121         },
122         {
123                 .name                   = "led2",
124                 .default_trigger        = "none",
125                 .active_low             = 1,
126                 .gpio                   = GPIO_PORTF | 19,
127         },
128 };
129
130 static const struct gpio_led_platform_data
131                 eukrea_mbimx27_gpio_led_info __initconst = {
132         .leds           = eukrea_mbimx27_gpio_leds,
133         .num_leds       = ARRAY_SIZE(eukrea_mbimx27_gpio_leds),
134 };
135
136 static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
137         {
138                 .mode = {
139                         .name           = "CMO-QVGA",
140                         .refresh        = 60,
141                         .xres           = 320,
142                         .yres           = 240,
143                         .pixclock       = 156000,
144                         .hsync_len      = 30,
145                         .left_margin    = 38,
146                         .right_margin   = 20,
147                         .vsync_len      = 3,
148                         .upper_margin   = 15,
149                         .lower_margin   = 4,
150                 },
151                 .pcr            = 0xFAD08B80,
152                 .bpp            = 16,
153         }, {
154                 .mode = {
155                         .name           = "DVI-VGA",
156                         .refresh        = 60,
157                         .xres           = 640,
158                         .yres           = 480,
159                         .pixclock       = 32000,
160                         .hsync_len      = 1,
161                         .left_margin    = 35,
162                         .right_margin   = 0,
163                         .vsync_len      = 1,
164                         .upper_margin   = 7,
165                         .lower_margin   = 0,
166                 },
167                 .pcr            = 0xFA208B80,
168                 .bpp            = 16,
169         }, {
170                 .mode = {
171                         .name           = "DVI-SVGA",
172                         .refresh        = 60,
173                         .xres           = 800,
174                         .yres           = 600,
175                         .pixclock       = 25000,
176                         .hsync_len      = 1,
177                         .left_margin    = 35,
178                         .right_margin   = 0,
179                         .vsync_len      = 1,
180                         .upper_margin   = 7,
181                         .lower_margin   = 0,
182                 },
183                 .pcr            = 0xFA208B80,
184                 .bpp            = 16,
185         },
186 };
187
188 static const struct imx_fb_platform_data eukrea_mbimx27_fb_data __initconst = {
189         .mode = eukrea_mbimx27_modes,
190         .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
191
192         .pwmr           = 0x00A903FF,
193         .lscr1          = 0x00120300,
194         .dmacr          = 0x00040060,
195 };
196
197 static void eukrea_mbimx27_bl_set_intensity(int intensity)
198 {
199         if (intensity)
200                 gpio_direction_output(GPIO_PORTE | 5, 1);
201         else
202                 gpio_direction_output(GPIO_PORTE | 5, 0);
203 }
204
205 static struct generic_bl_info eukrea_mbimx27_bl_info = {
206         .name                   = "eukrea_mbimx27-bl",
207         .max_intensity          = 0xff,
208         .default_intensity      = 0xff,
209         .set_bl_intensity       = eukrea_mbimx27_bl_set_intensity,
210 };
211
212 static struct platform_device eukrea_mbimx27_bl_dev = {
213         .name                   = "generic-bl",
214         .id                     = 1,
215         .dev = {
216                 .platform_data  = &eukrea_mbimx27_bl_info,
217         },
218 };
219
220 static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
221                                    unsigned int power)
222 {
223         if (power)
224                 gpio_direction_output(GPIO_PORTA | 25, 1);
225         else
226                 gpio_direction_output(GPIO_PORTA | 25, 0);
227 }
228
229 static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
230         .set_power              = eukrea_mbimx27_lcd_power_set,
231 };
232
233 static struct platform_device eukrea_mbimx27_lcd_powerdev = {
234         .name                   = "platform-lcd",
235         .dev.platform_data      = &eukrea_mbimx27_lcd_power_data,
236 };
237
238 static const struct imxuart_platform_data uart_pdata __initconst = {
239         .flags = IMXUART_HAVE_RTSCTS,
240 };
241
242 #define ADS7846_PENDOWN (GPIO_PORTD | 25)
243
244 static void __maybe_unused ads7846_dev_init(void)
245 {
246         if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
247                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
248                 return;
249         }
250         gpio_direction_input(ADS7846_PENDOWN);
251 }
252
253 static int ads7846_get_pendown_state(void)
254 {
255         return !gpio_get_value(ADS7846_PENDOWN);
256 }
257
258 static struct ads7846_platform_data ads7846_config __initdata = {
259         .get_pendown_state      = ads7846_get_pendown_state,
260         .keep_vref_on           = 1,
261 };
262
263 static struct spi_board_info __maybe_unused
264                 eukrea_mbimx27_spi_board_info[] __initdata = {
265         [0] = {
266                 .modalias       = "ads7846",
267                 .bus_num        = 0,
268                 .chip_select    = 0,
269                 .max_speed_hz   = 1500000,
270                 .irq            = IRQ_GPIOD(25),
271                 .platform_data  = &ads7846_config,
272                 .mode           = SPI_MODE_2,
273         },
274 };
275
276 static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
277
278 static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
279         .chipselect     = eukrea_mbimx27_spi_cs,
280         .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
281 };
282
283 static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
284         {
285                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
286         },
287 };
288
289 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
290         .dat3_card_detect = 1,
291 };
292
293 static const
294 struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata __initconst = {
295         .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
296 };
297
298 /*
299  * system init for baseboard usage. Will be called by cpuimx27 init.
300  *
301  * Add platform devices present on this baseboard and init
302  * them from CPU side as far as required to use them later on
303  */
304 void __init eukrea_mbimx27_baseboard_init(void)
305 {
306         mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
307                 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
308
309 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
310         || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
311         /* SSI unit master I2S codec connected to SSI_PINS_4*/
312         mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
313                         MXC_AUDMUX_V1_PCR_SYN |
314                         MXC_AUDMUX_V1_PCR_TFSDIR |
315                         MXC_AUDMUX_V1_PCR_TCLKDIR |
316                         MXC_AUDMUX_V1_PCR_RFSDIR |
317                         MXC_AUDMUX_V1_PCR_RCLKDIR |
318                         MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
319                         MXC_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
320                         MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
321         );
322         mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
323                         MXC_AUDMUX_V1_PCR_SYN |
324                         MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
325         );
326 #endif
327
328         imx27_add_imx_uart1(&uart_pdata);
329         imx27_add_imx_uart2(&uart_pdata);
330 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
331         imx27_add_imx_uart3(&uart_pdata);
332 #endif
333
334         imx27_add_imx_fb(&eukrea_mbimx27_fb_data);
335         imx27_add_mxc_mmc(0, &sdhc_pdata);
336
337         i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
338                                 ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
339
340         imx27_add_imx_ssi(0, &eukrea_mbimx27_ssi_pdata);
341
342 #if defined(CONFIG_TOUCHSCREEN_ADS7846) \
343         || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
344         /* ADS7846 Touchscreen controller init */
345         mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
346         ads7846_dev_init();
347 #endif
348
349         /* SPI_CS0 init */
350         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
351         imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
352         spi_register_board_info(eukrea_mbimx27_spi_board_info,
353                         ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
354
355         /* Leds configuration */
356         mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
357         mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
358         /* Backlight */
359         mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
360         gpio_request(GPIO_PORTE | 5, "backlight");
361         platform_device_register(&eukrea_mbimx27_bl_dev);
362         /* LCD Reset */
363         mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
364         gpio_request(GPIO_PORTA | 25, "lcd_enable");
365         platform_device_register(&eukrea_mbimx27_lcd_powerdev);
366
367         imx27_add_imx_keypad(&eukrea_mbimx27_keymap_data);
368
369         gpio_led_register_device(-1, &eukrea_mbimx27_gpio_led_info);
370 }