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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
28#include <asm/mach/arch.h>
29
30#include <mach/common.h>
31#include <mach/iomux.h>
32#include <mach/imxfb.h>
33#include <mach/hardware.h>
34#include <mach/mmc.h>
35#include <mach/imx-uart.h>
36
37#include "devices.h"
38
39static int eukrea_mbimx27_pins[] = {
40
41 PE3_PF_UART2_CTS,
42 PE4_PF_UART2_RTS,
43 PE6_PF_UART2_TXD,
44 PE7_PF_UART2_RXD,
45
46 PE8_PF_UART3_TXD,
47 PE9_PF_UART3_RXD,
48 PE10_PF_UART3_CTS,
49 PE11_PF_UART3_RTS,
50
51 PB26_AF_UART4_RTS,
52 PB28_AF_UART4_TXD,
53 PB29_AF_UART4_CTS,
54 PB31_AF_UART4_RXD,
55
56 PE18_PF_SD1_D0,
57 PE19_PF_SD1_D1,
58 PE20_PF_SD1_D2,
59 PE21_PF_SD1_D3,
60 PE22_PF_SD1_CMD,
61 PE23_PF_SD1_CLK,
62
63 PA5_PF_LSCLK,
64 PA6_PF_LD0,
65 PA7_PF_LD1,
66 PA8_PF_LD2,
67 PA9_PF_LD3,
68 PA10_PF_LD4,
69 PA11_PF_LD5,
70 PA12_PF_LD6,
71 PA13_PF_LD7,
72 PA14_PF_LD8,
73 PA15_PF_LD9,
74 PA16_PF_LD10,
75 PA17_PF_LD11,
76 PA18_PF_LD12,
77 PA19_PF_LD13,
78 PA20_PF_LD14,
79 PA21_PF_LD15,
80 PA22_PF_LD16,
81 PA23_PF_LD17,
82 PA28_PF_HSYNC,
83 PA29_PF_VSYNC,
84 PA30_PF_CONTRAST,
85 PA31_PF_OE_ACD,
86
87 PD28_PF_CSPI1_SS0,
88 PD29_PF_CSPI1_SCLK,
89 PD30_PF_CSPI1_MISO,
90 PD31_PF_CSPI1_MOSI,
91};
92
93static struct gpio_led gpio_leds[] = {
94 {
95 .name = "led1",
96 .default_trigger = "heartbeat",
97 .active_low = 1,
98 .gpio = GPIO_PORTF | 16,
99 },
100 {
101 .name = "led2",
102 .default_trigger = "none",
103 .active_low = 1,
104 .gpio = GPIO_PORTF | 19,
105 },
106 {
107 .name = "backlight",
108 .default_trigger = "backlight",
109 .active_low = 0,
110 .gpio = GPIO_PORTE | 5,
111 },
112};
113
114static struct gpio_led_platform_data gpio_led_info = {
115 .leds = gpio_leds,
116 .num_leds = ARRAY_SIZE(gpio_leds),
117};
118
119static struct platform_device leds_gpio = {
120 .name = "leds-gpio",
121 .id = -1,
122 .dev = {
123 .platform_data = &gpio_led_info,
124 },
125};
126
127static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
128 {
129 .mode = {
130 .name = "CMO-QGVA",
131 .refresh = 60,
132 .xres = 320,
133 .yres = 240,
134 .pixclock = 156000,
135 .hsync_len = 30,
136 .left_margin = 38,
137 .right_margin = 20,
138 .vsync_len = 3,
139 .upper_margin = 15,
140 .lower_margin = 4,
141 },
142 .pcr = 0xFAD08B80,
143 .bpp = 16,
144 },
145};
146
147static struct imx_fb_platform_data eukrea_mbimx27_fb_data = {
148 .mode = eukrea_mbimx27_modes,
149 .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
150
151 .pwmr = 0x00A903FF,
152 .lscr1 = 0x00120300,
153 .dmacr = 0x00040060,
154};
155
156static struct imxuart_platform_data uart_pdata[] = {
157 {
158 .flags = IMXUART_HAVE_RTSCTS,
159 },
160 {
161 .flags = IMXUART_HAVE_RTSCTS,
162 },
163};
164
165#if defined(CONFIG_TOUCHSCREEN_ADS7846)
166 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
167
168#define ADS7846_PENDOWN (GPIO_PORTD | 25)
169
170static void ads7846_dev_init(void)
171{
172 if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
173 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
174 return;
175 }
176
177 gpio_direction_input(ADS7846_PENDOWN);
178}
179
180static int ads7846_get_pendown_state(void)
181{
182 return !gpio_get_value(ADS7846_PENDOWN);
183}
184
185static struct ads7846_platform_data ads7846_config __initdata = {
186 .get_pendown_state = ads7846_get_pendown_state,
187 .keep_vref_on = 1,
188};
189
190static struct spi_board_info eukrea_mbimx27_spi_board_info[] __initdata = {
191 [0] = {
192 .modalias = "ads7846",
193 .bus_num = 0,
194 .chip_select = 0,
195 .max_speed_hz = 1500000,
196 .irq = IRQ_GPIOD(25),
197 .platform_data = &ads7846_config,
198 .mode = SPI_MODE_2,
199 },
200};
201
202static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
203
204static struct spi_imx_master eukrea_mbimx27_spi_0_data = {
205 .chipselect = eukrea_mbimx27_spi_cs,
206 .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
207};
208#endif
209
210static struct platform_device *platform_devices[] __initdata = {
211 &leds_gpio,
212};
213
214
215
216
217
218
219
220void __init eukrea_mbimx27_baseboard_init(void)
221{
222 mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
223 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
224
225 mxc_register_device(&mxc_uart_device1, &uart_pdata[0]);
226 mxc_register_device(&mxc_uart_device2, &uart_pdata[1]);
227
228 mxc_register_device(&mxc_fb_device, &eukrea_mbimx27_fb_data);
229 mxc_register_device(&mxc_sdhc_device0, NULL);
230
231#if defined(CONFIG_TOUCHSCREEN_ADS7846)
232 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
233
234 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
235 mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
236 mxc_register_device(&mxc_spi_device0, &eukrea_mbimx27_spi_0_data);
237 spi_register_board_info(eukrea_mbimx27_spi_board_info,
238 ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
239 ads7846_dev_init();
240#endif
241
242
243 mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
244 mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
245
246 mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
247
248 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
249}
250
