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19#include <linux/delay.h>
20#include <linux/fsl_devices.h>
21#include <linux/gpio.h>
22#include <linux/init.h>
23#include <linux/interrupt.h>
24#include <linux/leds.h>
25#include <linux/memory.h>
26#include <linux/mtd/physmap.h>
27#include <linux/mtd/partitions.h>
28#include <linux/platform_device.h>
29#include <linux/types.h>
30
31#include <asm/mach-types.h>
32#include <asm/mach/arch.h>
33#include <asm/mach/time.h>
34#include <asm/mach/map.h>
35#include <mach/board-mx31moboard.h>
36#include <mach/common.h>
37#include <mach/hardware.h>
38#include <mach/imx-uart.h>
39#include <mach/iomux-mx3.h>
40#include <mach/i2c.h>
41#include <mach/mmc.h>
42#include <mach/mx31.h>
43
44#include "devices.h"
45
46static unsigned int moboard_pins[] = {
47
48 MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
49 MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
50
51 MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
52 MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
53
54 MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
55
56 MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
57
58 MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
59 MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
60 MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
61 MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
62
63 MX31_PIN_GPIO1_0__GPIO1_0,
64
65 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
66 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
67 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
68 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
69 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
70 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
71 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
72 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
73 MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
74 MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
75 MX31_PIN_USB_OC__GPIO1_30,
76
77 MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
78 MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
79
80 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
81 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
82};
83
84static struct physmap_flash_data mx31moboard_flash_data = {
85 .width = 2,
86};
87
88static struct resource mx31moboard_flash_resource = {
89 .start = 0xa0000000,
90 .end = 0xa1ffffff,
91 .flags = IORESOURCE_MEM,
92};
93
94static struct platform_device mx31moboard_flash = {
95 .name = "physmap-flash",
96 .id = 0,
97 .dev = {
98 .platform_data = &mx31moboard_flash_data,
99 },
100 .resource = &mx31moboard_flash_resource,
101 .num_resources = 1,
102};
103
104static struct imxuart_platform_data uart_pdata = {
105 .flags = IMXUART_HAVE_RTSCTS,
106};
107
108static struct imxi2c_platform_data moboard_i2c0_pdata = {
109 .bitrate = 400000,
110};
111
112static struct imxi2c_platform_data moboard_i2c1_pdata = {
113 .bitrate = 100000,
114};
115
116#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
117#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
118
119static int moboard_sdhc1_get_ro(struct device *dev)
120{
121 return !gpio_get_value(SDHC1_WP);
122}
123
124static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
125 void *data)
126{
127 int ret;
128
129 ret = gpio_request(SDHC1_CD, "sdhc-detect");
130 if (ret)
131 return ret;
132
133 gpio_direction_input(SDHC1_CD);
134
135 ret = gpio_request(SDHC1_WP, "sdhc-wp");
136 if (ret)
137 goto err_gpio_free;
138 gpio_direction_input(SDHC1_WP);
139
140 ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
141 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
142 "sdhc1-card-detect", data);
143 if (ret)
144 goto err_gpio_free_2;
145
146 return 0;
147
148err_gpio_free_2:
149 gpio_free(SDHC1_WP);
150err_gpio_free:
151 gpio_free(SDHC1_CD);
152
153 return ret;
154}
155
156static void moboard_sdhc1_exit(struct device *dev, void *data)
157{
158 free_irq(gpio_to_irq(SDHC1_CD), data);
159 gpio_free(SDHC1_WP);
160 gpio_free(SDHC1_CD);
161}
162
163static struct imxmmc_platform_data sdhc1_pdata = {
164 .get_ro = moboard_sdhc1_get_ro,
165 .init = moboard_sdhc1_init,
166 .exit = moboard_sdhc1_exit,
167};
168
169
170
171
172#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
173
174static void usb_xcvr_reset(void)
175{
176 gpio_request(USB_RESET_B, "usb-reset");
177 gpio_direction_output(USB_RESET_B, 0);
178 mdelay(1);
179 gpio_set_value(USB_RESET_B, 1);
180}
181
182#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
183 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
184
185#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
186
187static void moboard_usbotg_init(void)
188{
189 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
190 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
191 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
192 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
193 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
194 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
195 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
196 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
197 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
198 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
199 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
200 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
201
202 gpio_request(OTG_EN_B, "usb-udc-en");
203 gpio_direction_output(OTG_EN_B, 0);
204}
205
206static struct fsl_usb2_platform_data usb_pdata = {
207 .operating_mode = FSL_USB2_DR_DEVICE,
208 .phy_mode = FSL_USB2_PHY_ULPI,
209};
210
211static struct gpio_led mx31moboard_leds[] = {
212 {
213 .name = "coreboard-led-0:red:running",
214 .default_trigger = "heartbeat",
215 .gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
216 }, {
217 .name = "coreboard-led-1:red",
218 .gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
219 }, {
220 .name = "coreboard-led-2:red",
221 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
222 }, {
223 .name = "coreboard-led-3:red",
224 .gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
225 },
226};
227
228static struct gpio_led_platform_data mx31moboard_led_pdata = {
229 .num_leds = ARRAY_SIZE(mx31moboard_leds),
230 .leds = mx31moboard_leds,
231};
232
233static struct platform_device mx31moboard_leds_device = {
234 .name = "leds-gpio",
235 .id = -1,
236 .dev = {
237 .platform_data = &mx31moboard_led_pdata,
238 },
239};
240
241#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
242#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
243#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
244#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
245
246static void mx31moboard_init_sel_gpios(void)
247{
248 if (!gpio_request(SEL0, "sel0")) {
249 gpio_direction_input(SEL0);
250 gpio_export(SEL0, true);
251 }
252
253 if (!gpio_request(SEL1, "sel1")) {
254 gpio_direction_input(SEL1);
255 gpio_export(SEL1, true);
256 }
257
258 if (!gpio_request(SEL2, "sel2")) {
259 gpio_direction_input(SEL2);
260 gpio_export(SEL2, true);
261 }
262
263 if (!gpio_request(SEL3, "sel3")) {
264 gpio_direction_input(SEL3);
265 gpio_export(SEL3, true);
266 }
267}
268
269static struct platform_device *devices[] __initdata = {
270 &mx31moboard_flash,
271 &mx31moboard_leds_device,
272};
273
274static int mx31moboard_baseboard;
275core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
276
277
278
279
280static void __init mxc_board_init(void)
281{
282 mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
283 "moboard");
284
285 platform_add_devices(devices, ARRAY_SIZE(devices));
286
287 mxc_register_device(&mxc_uart_device0, &uart_pdata);
288 mxc_register_device(&mxc_uart_device4, &uart_pdata);
289
290 mx31moboard_init_sel_gpios();
291
292 mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
293 mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
294
295 mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
296
297 usb_xcvr_reset();
298
299 moboard_usbotg_init();
300 mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
301
302 switch (mx31moboard_baseboard) {
303 case MX31NOBOARD:
304 break;
305 case MX31DEVBOARD:
306 mx31moboard_devboard_init();
307 break;
308 case MX31MARXBOT:
309 mx31moboard_marxbot_init();
310 break;
311 default:
312 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
313 mx31moboard_baseboard);
314 }
315}
316
317static void __init mx31moboard_timer_init(void)
318{
319 mx31_clocks_init(26000000);
320}
321
322struct sys_timer mx31moboard_timer = {
323 .init = mx31moboard_timer_init,
324};
325
326MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
327
328 .phys_io = AIPS1_BASE_ADDR,
329 .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
330 .boot_params = PHYS_OFFSET + 0x100,
331 .map_io = mx31_map_io,
332 .init_irq = mx31_init_irq,
333 .init_machine = mxc_board_init,
334 .timer = &mx31moboard_timer,
335MACHINE_END
336
337
