• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
3  */
4 
5 /*
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10 
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 along
17  * with this program; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #include <linux/init.h>
22 #include <linux/clk.h>
23 #include <linux/delay.h>
24 #include <linux/gpio.h>
25 #include <linux/i2c.h>
26 
27 #include <mach/common.h>
28 #include <mach/hardware.h>
29 #include <mach/iomux-mx53.h>
30 
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/time.h>
34 
35 #include "devices-imx53.h"
36 
37 #define MX53_LOCO_POWER			IMX_GPIO_NR(1, 8)
38 #define MX53_LOCO_UI1			IMX_GPIO_NR(2, 14)
39 #define MX53_LOCO_UI2			IMX_GPIO_NR(2, 15)
40 #define LOCO_FEC_PHY_RST		IMX_GPIO_NR(7, 6)
41 #define LOCO_LED			IMX_GPIO_NR(7, 7)
42 #define LOCO_SD3_CD			IMX_GPIO_NR(3, 11)
43 #define LOCO_SD3_WP			IMX_GPIO_NR(3, 12)
44 #define LOCO_SD1_CD			IMX_GPIO_NR(3, 13)
45 #define LOCO_ACCEL_EN			IMX_GPIO_NR(6, 14)
46 
47 static iomux_v3_cfg_t mx53_loco_pads[] = {
48 	/* FEC */
49 	MX53_PAD_FEC_MDC__FEC_MDC,
50 	MX53_PAD_FEC_MDIO__FEC_MDIO,
51 	MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
52 	MX53_PAD_FEC_RX_ER__FEC_RX_ER,
53 	MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
54 	MX53_PAD_FEC_RXD1__FEC_RDATA_1,
55 	MX53_PAD_FEC_RXD0__FEC_RDATA_0,
56 	MX53_PAD_FEC_TX_EN__FEC_TX_EN,
57 	MX53_PAD_FEC_TXD1__FEC_TDATA_1,
58 	MX53_PAD_FEC_TXD0__FEC_TDATA_0,
59 	/* FEC_nRST */
60 	MX53_PAD_PATA_DA_0__GPIO7_6,
61 	/* FEC_nINT */
62 	MX53_PAD_PATA_DATA4__GPIO2_4,
63 	/* AUDMUX5 */
64 	MX53_PAD_KEY_COL0__AUDMUX_AUD5_TXC,
65 	MX53_PAD_KEY_ROW0__AUDMUX_AUD5_TXD,
66 	MX53_PAD_KEY_COL1__AUDMUX_AUD5_TXFS,
67 	MX53_PAD_KEY_ROW1__AUDMUX_AUD5_RXD,
68 	/* I2C1 */
69 	MX53_PAD_CSI0_DAT8__I2C1_SDA,
70 	MX53_PAD_CSI0_DAT9__I2C1_SCL,
71 	MX53_PAD_NANDF_CS1__GPIO6_14,	/* Accelerometer Enable */
72 	/* I2C2 */
73 	MX53_PAD_KEY_COL3__I2C2_SCL,
74 	MX53_PAD_KEY_ROW3__I2C2_SDA,
75 	/* SD1 */
76 	MX53_PAD_SD1_CMD__ESDHC1_CMD,
77 	MX53_PAD_SD1_CLK__ESDHC1_CLK,
78 	MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
79 	MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
80 	MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
81 	MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
82 	/* SD1_CD */
83 	MX53_PAD_EIM_DA13__GPIO3_13,
84 	/* SD3 */
85 	MX53_PAD_PATA_DATA8__ESDHC3_DAT0,
86 	MX53_PAD_PATA_DATA9__ESDHC3_DAT1,
87 	MX53_PAD_PATA_DATA10__ESDHC3_DAT2,
88 	MX53_PAD_PATA_DATA11__ESDHC3_DAT3,
89 	MX53_PAD_PATA_DATA0__ESDHC3_DAT4,
90 	MX53_PAD_PATA_DATA1__ESDHC3_DAT5,
91 	MX53_PAD_PATA_DATA2__ESDHC3_DAT6,
92 	MX53_PAD_PATA_DATA3__ESDHC3_DAT7,
93 	MX53_PAD_PATA_IORDY__ESDHC3_CLK,
94 	MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
95 	/* SD3_CD */
96 	MX53_PAD_EIM_DA11__GPIO3_11,
97 	/* SD3_WP */
98 	MX53_PAD_EIM_DA12__GPIO3_12,
99 	/* VGA */
100 	MX53_PAD_EIM_OE__IPU_DI1_PIN7,
101 	MX53_PAD_EIM_RW__IPU_DI1_PIN8,
102 	/* DISPLB */
103 	MX53_PAD_EIM_D20__IPU_SER_DISP0_CS,
104 	MX53_PAD_EIM_D21__IPU_DISPB0_SER_CLK,
105 	MX53_PAD_EIM_D22__IPU_DISPB0_SER_DIN,
106 	MX53_PAD_EIM_D23__IPU_DI0_D0_CS,
107 	/* DISP0_POWER_EN */
108 	MX53_PAD_EIM_D24__GPIO3_24,
109 	/* DISP0 DET INT */
110 	MX53_PAD_EIM_D31__GPIO3_31,
111 	/* LVDS */
112 	MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
113 	MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
114 	MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
115 	MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
116 	MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
117 	MX53_PAD_LVDS1_TX3_P__LDB_LVDS1_TX3,
118 	MX53_PAD_LVDS1_TX2_P__LDB_LVDS1_TX2,
119 	MX53_PAD_LVDS1_CLK_P__LDB_LVDS1_CLK,
120 	MX53_PAD_LVDS1_TX1_P__LDB_LVDS1_TX1,
121 	MX53_PAD_LVDS1_TX0_P__LDB_LVDS1_TX0,
122 	/* I2C1 */
123 	MX53_PAD_CSI0_DAT8__I2C1_SDA,
124 	MX53_PAD_CSI0_DAT9__I2C1_SCL,
125 	/* UART1 */
126 	MX53_PAD_CSI0_DAT10__UART1_TXD_MUX,
127 	MX53_PAD_CSI0_DAT11__UART1_RXD_MUX,
128 	/* CSI0 */
129 	MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12,
130 	MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13,
131 	MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14,
132 	MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15,
133 	MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16,
134 	MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17,
135 	MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18,
136 	MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19,
137 	MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC,
138 	MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC,
139 	MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK,
140 	/* DISPLAY */
141 	MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,
142 	MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,
143 	MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,
144 	MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,
145 	MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,
146 	MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,
147 	MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,
148 	MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,
149 	MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,
150 	MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,
151 	MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,
152 	MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,
153 	MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,
154 	MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,
155 	MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,
156 	MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,
157 	MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,
158 	MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,
159 	MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,
160 	MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,
161 	MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,
162 	MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,
163 	MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,
164 	MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,
165 	MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,
166 	MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,
167 	MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,
168 	MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,
169 	/* Audio CLK*/
170 	MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK,
171 	/* PWM */
172 	MX53_PAD_GPIO_1__PWM2_PWMO,
173 	/* SPDIF */
174 	MX53_PAD_GPIO_7__SPDIF_PLOCK,
175 	MX53_PAD_GPIO_17__SPDIF_OUT1,
176 	/* GPIO */
177 	MX53_PAD_PATA_DA_1__GPIO7_7,		/* LED */
178 	MX53_PAD_PATA_DA_2__GPIO7_8,
179 	MX53_PAD_PATA_DATA5__GPIO2_5,
180 	MX53_PAD_PATA_DATA6__GPIO2_6,
181 	MX53_PAD_PATA_DATA14__GPIO2_14,
182 	MX53_PAD_PATA_DATA15__GPIO2_15,
183 	MX53_PAD_PATA_INTRQ__GPIO7_2,
184 	MX53_PAD_EIM_WAIT__GPIO5_0,
185 	MX53_PAD_NANDF_WP_B__GPIO6_9,
186 	MX53_PAD_NANDF_RB0__GPIO6_10,
187 	MX53_PAD_NANDF_CS1__GPIO6_14,
188 	MX53_PAD_NANDF_CS2__GPIO6_15,
189 	MX53_PAD_NANDF_CS3__GPIO6_16,
190 	MX53_PAD_GPIO_5__GPIO1_5,
191 	MX53_PAD_GPIO_16__GPIO7_11,
192 	MX53_PAD_GPIO_8__GPIO1_8,
193 };
194 
195 #define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake)	\
196 {								\
197 	.gpio		= gpio_num,				\
198 	.type		= EV_KEY,				\
199 	.code		= ev_code,				\
200 	.active_low	= act_low,				\
201 	.desc		= "btn " descr,				\
202 	.wakeup		= wake,					\
203 }
204 
205 static struct gpio_keys_button loco_buttons[] = {
206 	GPIO_BUTTON(MX53_LOCO_POWER, KEY_POWER, 1, "power", 0),
207 	GPIO_BUTTON(MX53_LOCO_UI1, KEY_VOLUMEUP, 1, "volume-up", 0),
208 	GPIO_BUTTON(MX53_LOCO_UI2, KEY_VOLUMEDOWN, 1, "volume-down", 0),
209 };
210 
211 static const struct gpio_keys_platform_data loco_button_data __initconst = {
212 	.buttons        = loco_buttons,
213 	.nbuttons       = ARRAY_SIZE(loco_buttons),
214 };
215 
216 static const struct esdhc_platform_data mx53_loco_sd1_data __initconst = {
217 	.cd_gpio = LOCO_SD1_CD,
218 	.cd_type = ESDHC_CD_GPIO,
219 	.wp_type = ESDHC_WP_NONE,
220 };
221 
222 static const struct esdhc_platform_data mx53_loco_sd3_data __initconst = {
223 	.cd_gpio = LOCO_SD3_CD,
224 	.wp_gpio = LOCO_SD3_WP,
225 	.cd_type = ESDHC_CD_GPIO,
226 	.wp_type = ESDHC_WP_GPIO,
227 };
228 
mx53_loco_fec_reset(void)229 static inline void mx53_loco_fec_reset(void)
230 {
231 	int ret;
232 
233 	/* reset FEC PHY */
234 	ret = gpio_request(LOCO_FEC_PHY_RST, "fec-phy-reset");
235 	if (ret) {
236 		printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
237 		return;
238 	}
239 	gpio_direction_output(LOCO_FEC_PHY_RST, 0);
240 	msleep(1);
241 	gpio_set_value(LOCO_FEC_PHY_RST, 1);
242 }
243 
244 static const struct fec_platform_data mx53_loco_fec_data __initconst = {
245 	.phy = PHY_INTERFACE_MODE_RMII,
246 };
247 
248 static const struct imxi2c_platform_data mx53_loco_i2c_data __initconst = {
249 	.bitrate = 100000,
250 };
251 
252 static const struct gpio_led mx53loco_leds[] __initconst = {
253 	{
254 		.name			= "green",
255 		.default_trigger	= "heartbeat",
256 		.gpio			= LOCO_LED,
257 	},
258 };
259 
260 static const struct gpio_led_platform_data mx53loco_leds_data __initconst = {
261 	.leds		= mx53loco_leds,
262 	.num_leds	= ARRAY_SIZE(mx53loco_leds),
263 };
264 
imx53_qsb_common_init(void)265 void __init imx53_qsb_common_init(void)
266 {
267 	mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads,
268 					 ARRAY_SIZE(mx53_loco_pads));
269 }
270 
271 static struct i2c_board_info mx53loco_i2c_devices[] = {
272 	{
273 		I2C_BOARD_INFO("mma8450", 0x1C),
274 	},
275 };
276 
mx53_loco_board_init(void)277 static void __init mx53_loco_board_init(void)
278 {
279 	int ret;
280 	imx53_soc_init();
281 	imx53_qsb_common_init();
282 
283 	imx53_add_imx_uart(0, NULL);
284 	mx53_loco_fec_reset();
285 	imx53_add_fec(&mx53_loco_fec_data);
286 	imx53_add_imx2_wdt(0, NULL);
287 
288 	ret = gpio_request_one(LOCO_ACCEL_EN, GPIOF_OUT_INIT_HIGH, "accel_en");
289 	if (ret)
290 		pr_err("Cannot request ACCEL_EN pin: %d\n", ret);
291 
292 	i2c_register_board_info(0, mx53loco_i2c_devices,
293 				ARRAY_SIZE(mx53loco_i2c_devices));
294 	imx53_add_imx_i2c(0, &mx53_loco_i2c_data);
295 	imx53_add_imx_i2c(1, &mx53_loco_i2c_data);
296 	imx53_add_sdhci_esdhc_imx(0, &mx53_loco_sd1_data);
297 	imx53_add_sdhci_esdhc_imx(2, &mx53_loco_sd3_data);
298 	imx_add_gpio_keys(&loco_button_data);
299 	gpio_led_register_device(-1, &mx53loco_leds_data);
300 	imx53_add_ahci_imx();
301 }
302 
mx53_loco_timer_init(void)303 static void __init mx53_loco_timer_init(void)
304 {
305 	mx53_clocks_init(32768, 24000000, 0, 0);
306 }
307 
308 static struct sys_timer mx53_loco_timer = {
309 	.init	= mx53_loco_timer_init,
310 };
311 
312 MACHINE_START(MX53_LOCO, "Freescale MX53 LOCO Board")
313 	.map_io = mx53_map_io,
314 	.init_early = imx53_init_early,
315 	.init_irq = mx53_init_irq,
316 	.handle_irq = imx53_handle_irq,
317 	.timer = &mx53_loco_timer,
318 	.init_machine = mx53_loco_board_init,
319 	.restart	= mxc_restart,
320 MACHINE_END
321