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/arch/arm/mach-imx/mach-mx53_loco.c

https://github.com/AICP/kernel_google_msm
C | 320 lines | 250 code | 27 blank | 43 comment | 2 complexity | e2c0b88f8ca5149d84acc3b24809923b MD5 | raw file
  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
 47static 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
205static 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
211static const struct gpio_keys_platform_data loco_button_data __initconst = {
212	.buttons        = loco_buttons,
213	.nbuttons       = ARRAY_SIZE(loco_buttons),
214};
215
216static 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
222static 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
229static 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
244static const struct fec_platform_data mx53_loco_fec_data __initconst = {
245	.phy = PHY_INTERFACE_MODE_RMII,
246};
247
248static const struct imxi2c_platform_data mx53_loco_i2c_data __initconst = {
249	.bitrate = 100000,
250};
251
252static const struct gpio_led mx53loco_leds[] __initconst = {
253	{
254		.name			= "green",
255		.default_trigger	= "heartbeat",
256		.gpio			= LOCO_LED,
257	},
258};
259
260static const struct gpio_led_platform_data mx53loco_leds_data __initconst = {
261	.leds		= mx53loco_leds,
262	.num_leds	= ARRAY_SIZE(mx53loco_leds),
263};
264
265void __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
271static struct i2c_board_info mx53loco_i2c_devices[] = {
272	{
273		I2C_BOARD_INFO("mma8450", 0x1C),
274	},
275};
276
277static 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
303static void __init mx53_loco_timer_init(void)
304{
305	mx53_clocks_init(32768, 24000000, 0, 0);
306}
307
308static struct sys_timer mx53_loco_timer = {
309	.init	= mx53_loco_timer_init,
310};
311
312MACHINE_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,
320MACHINE_END