Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-imx / mach-pca100.c
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1/*
2 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
3 * Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
17 * MA 02110-1301, USA.
18 */
19
20#include <linux/platform_device.h>
21#include <linux/io.h>
22#include <linux/i2c.h>
23#include <linux/i2c/at24.h>
24#include <linux/dma-mapping.h>
25#include <linux/spi/spi.h>
26#include <linux/spi/eeprom.h>
27#include <linux/irq.h>
c8a6885f 28#include <linux/delay.h>
33731698 29#include <linux/gpio.h>
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30#include <linux/usb/otg.h>
31#include <linux/usb/ulpi.h>
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32
33#include <asm/mach/arch.h>
34#include <asm/mach-types.h>
35#include <mach/common.h>
36#include <mach/hardware.h>
e835d88e 37#include <mach/iomux-mx27.h>
33731698 38#include <asm/mach/time.h>
c8a6885f 39#include <mach/audmux.h>
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40#include <mach/mxc_nand.h>
41#include <mach/irqs.h>
eee7c497 42#include <mach/ulpi.h>
33731698 43
0e7a29a8 44#include "devices-imx27.h"
33731698 45
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46#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
47#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
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48#define SPI1_SS0 (GPIO_PORTD + 28)
49#define SPI1_SS1 (GPIO_PORTD + 27)
50#define SD2_CD (GPIO_PORTC + 29)
eee7c497 51
6c80ee51 52static const int pca100_pins[] __initconst = {
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53 /* UART1 */
54 PE12_PF_UART1_TXD,
55 PE13_PF_UART1_RXD,
56 PE14_PF_UART1_CTS,
57 PE15_PF_UART1_RTS,
58 /* SDHC */
59 PB4_PF_SD2_D0,
60 PB5_PF_SD2_D1,
61 PB6_PF_SD2_D2,
62 PB7_PF_SD2_D3,
63 PB8_PF_SD2_CMD,
64 PB9_PF_SD2_CLK,
b725abad 65 SD2_CD | GPIO_GPIO | GPIO_IN,
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66 /* FEC */
67 PD0_AIN_FEC_TXD0,
68 PD1_AIN_FEC_TXD1,
69 PD2_AIN_FEC_TXD2,
70 PD3_AIN_FEC_TXD3,
71 PD4_AOUT_FEC_RX_ER,
72 PD5_AOUT_FEC_RXD1,
73 PD6_AOUT_FEC_RXD2,
74 PD7_AOUT_FEC_RXD3,
75 PD8_AF_FEC_MDIO,
76 PD9_AIN_FEC_MDC,
77 PD10_AOUT_FEC_CRS,
78 PD11_AOUT_FEC_TX_CLK,
79 PD12_AOUT_FEC_RXD0,
80 PD13_AOUT_FEC_RX_DV,
81 PD14_AOUT_FEC_RX_CLK,
82 PD15_AOUT_FEC_COL,
83 PD16_AIN_FEC_TX_ER,
84 PF23_AIN_FEC_TX_EN,
85 /* SSI1 */
86 PC20_PF_SSI1_FS,
87 PC21_PF_SSI1_RXD,
88 PC22_PF_SSI1_TXD,
89 PC23_PF_SSI1_CLK,
90 /* onboard I2C */
91 PC5_PF_I2C2_SDA,
92 PC6_PF_I2C2_SCL,
93 /* external I2C */
94 PD17_PF_I2C_DATA,
95 PD18_PF_I2C_CLK,
96 /* SPI1 */
97 PD25_PF_CSPI1_RDY,
98 PD29_PF_CSPI1_SCLK,
99 PD30_PF_CSPI1_MISO,
100 PD31_PF_CSPI1_MOSI,
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101 /* OTG */
102 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
103 PC7_PF_USBOTG_DATA5,
104 PC8_PF_USBOTG_DATA6,
105 PC9_PF_USBOTG_DATA0,
106 PC10_PF_USBOTG_DATA2,
107 PC11_PF_USBOTG_DATA1,
108 PC12_PF_USBOTG_DATA4,
109 PC13_PF_USBOTG_DATA3,
110 PE0_PF_USBOTG_NXT,
111 PE1_PF_USBOTG_STP,
112 PE2_PF_USBOTG_DIR,
113 PE24_PF_USBOTG_CLK,
114 PE25_PF_USBOTG_DATA7,
115 /* USBH2 */
116 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
117 PA0_PF_USBH2_CLK,
118 PA1_PF_USBH2_DIR,
119 PA2_PF_USBH2_DATA7,
120 PA3_PF_USBH2_NXT,
121 PA4_PF_USBH2_STP,
122 PD19_AF_USBH2_DATA4,
123 PD20_AF_USBH2_DATA3,
124 PD21_AF_USBH2_DATA6,
125 PD22_AF_USBH2_DATA0,
126 PD23_AF_USBH2_DATA2,
127 PD24_AF_USBH2_DATA1,
128 PD26_AF_USBH2_DATA5,
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129 /* display */
130 PA5_PF_LSCLK,
131 PA6_PF_LD0,
132 PA7_PF_LD1,
133 PA8_PF_LD2,
134 PA9_PF_LD3,
135 PA10_PF_LD4,
136 PA11_PF_LD5,
137 PA12_PF_LD6,
138 PA13_PF_LD7,
139 PA14_PF_LD8,
140 PA15_PF_LD9,
141 PA16_PF_LD10,
142 PA17_PF_LD11,
143 PA18_PF_LD12,
144 PA19_PF_LD13,
145 PA20_PF_LD14,
146 PA21_PF_LD15,
147 PA22_PF_LD16,
148 PA23_PF_LD17,
149 PA26_PF_PS,
150 PA28_PF_HSYNC,
151 PA29_PF_VSYNC,
152 PA31_PF_OE_ACD,
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153 /* free GPIO */
154 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
155 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
156 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
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157};
158
d5dac4a6 159static const struct imxuart_platform_data uart_pdata __initconst = {
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160 .flags = IMXUART_HAVE_RTSCTS,
161};
162
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163static const struct mxc_nand_platform_data
164pca100_nand_board_info __initconst = {
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165 .width = 1,
166 .hw_ecc = 1,
167};
168
c6987159 169static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
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170 .bitrate = 100000,
171};
172
173static struct at24_platform_data board_eeprom = {
174 .byte_len = 4096,
175 .page_size = 32,
176 .flags = AT24_FLAG_ADDR16,
177};
178
179static struct i2c_board_info pca100_i2c_devices[] = {
180 {
181 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
182 .platform_data = &board_eeprom,
183 }, {
bd9e310d 184 I2C_BOARD_INFO("pcf8563", 0x51),
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185 }, {
186 I2C_BOARD_INFO("lm75", 0x4a),
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187 }
188};
189
190#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
191static struct spi_eeprom at25320 = {
192 .name = "at25320an",
193 .byte_len = 4096,
194 .page_size = 32,
195 .flags = EE_ADDR2,
196};
197
198static struct spi_board_info pca100_spi_board_info[] __initdata = {
199 {
200 .modalias = "at25",
201 .max_speed_hz = 30000,
202 .bus_num = 0,
203 .chip_select = 1,
204 .platform_data = &at25320,
205 },
206};
207
b725abad 208static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
33731698 209
7536cf99 210static const struct spi_imx_master pca100_spi0_data __initconst = {
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211 .chipselect = pca100_spi_cs,
212 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
213};
214#endif
215
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216static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
217{
218 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
219 gpio_set_value(GPIO_PORTC + 20, 1);
220 udelay(2);
221 gpio_set_value(GPIO_PORTC + 20, 0);
222 mxc_gpio_mode(PC20_PF_SSI1_FS);
223 msleep(2);
224}
225
226static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
227{
228 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
229 gpio_set_value(GPIO_PORTC + 20, 0);
230 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
231 gpio_set_value(GPIO_PORTC + 22, 0);
232 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
233 gpio_set_value(GPIO_PORTC + 28, 0);
234 udelay(10);
235 gpio_set_value(GPIO_PORTC + 28, 1);
236 mxc_gpio_mode(PC20_PF_SSI1_FS);
237 mxc_gpio_mode(PC22_PF_SSI1_TXD);
238 msleep(2);
239}
240
4697bb92 241static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
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242 .ac97_reset = pca100_ac97_cold_reset,
243 .ac97_warm_reset = pca100_ac97_warm_reset,
244 .flags = IMX_SSI_USE_AC97,
245};
246
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247static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
248 void *data)
249{
250 int ret;
251
252 ret = request_irq(IRQ_GPIOC(29), detect_irq,
253 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
254 "imx-mmc-detect", data);
255 if (ret)
256 printk(KERN_ERR
257 "pca100: Failed to reuest irq for sd/mmc detection\n");
258
259 return ret;
260}
261
262static void pca100_sdhc2_exit(struct device *dev, void *data)
263{
264 free_irq(IRQ_GPIOC(29), data);
265}
266
9d3d945a 267static const struct imxmmc_platform_data sdhc_pdata __initconst = {
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268 .init = pca100_sdhc2_init,
269 .exit = pca100_sdhc2_exit,
270};
271
c18e8fa5 272#if defined(CONFIG_USB_ULPI)
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273static int otg_phy_init(struct platform_device *pdev)
274{
275 gpio_set_value(OTG_PHY_CS_GPIO, 0);
276 return 0;
277}
278
2eb42d5c 279static struct mxc_usbh_platform_data otg_pdata __initdata = {
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280 .init = otg_phy_init,
281 .portsc = MXC_EHCI_MODE_ULPI,
282 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
283};
284
285static int usbh2_phy_init(struct platform_device *pdev)
286{
287 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
288 return 0;
289}
290
2eb42d5c 291static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
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292 .init = usbh2_phy_init,
293 .portsc = MXC_EHCI_MODE_ULPI,
294 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
295};
c18e8fa5 296#endif
eee7c497 297
bd455ed3 298static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
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299 .operating_mode = FSL_USB2_DR_DEVICE,
300 .phy_mode = FSL_USB2_PHY_ULPI,
301};
302
303static int otg_mode_host;
304
305static int __init pca100_otg_mode(char *options)
306{
307 if (!strcmp(options, "host"))
308 otg_mode_host = 1;
309 else if (!strcmp(options, "device"))
310 otg_mode_host = 0;
311 else
312 pr_info("otg_mode neither \"host\" nor \"device\". "
313 "Defaulting to device\n");
314 return 0;
315}
316__setup("otg_mode=", pca100_otg_mode);
317
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318/* framebuffer info */
319static struct imx_fb_videomode pca100_fb_modes[] = {
320 {
321 .mode = {
322 .name = "EMERGING-ETV570G0DHU",
323 .refresh = 60,
324 .xres = 640,
325 .yres = 480,
326 .pixclock = 39722, /* in ps (25.175 MHz) */
327 .hsync_len = 30,
328 .left_margin = 114,
329 .right_margin = 16,
330 .vsync_len = 3,
331 .upper_margin = 32,
332 .lower_margin = 0,
333 },
334 /*
335 * TFT
336 * Pixel pol active high
337 * HSYNC active low
338 * VSYNC active low
339 * use HSYNC for ACD count
340 * line clock disable while idle
341 * always enable line clock even if no data
342 */
343 .pcr = 0xf0c08080,
344 .bpp = 16,
345 },
346};
347
ad851bff 348static const struct imx_fb_platform_data pca100_fb_data __initconst = {
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349 .mode = pca100_fb_modes,
350 .num_modes = ARRAY_SIZE(pca100_fb_modes),
351
352 .pwmr = 0x00A903FF,
353 .lscr1 = 0x00120300,
354 .dmacr = 0x00020010,
355};
356
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357static void __init pca100_init(void)
358{
359 int ret;
360
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361 /* SSI unit */
362 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
363 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
364 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
365 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
366 MXC_AUDMUX_V1_PCR_RXDSEL(3));
367 mxc_audmux_v1_configure_port(3,
368 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
369 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
370 MXC_AUDMUX_V1_PCR_TFSDIR |
371 MXC_AUDMUX_V1_PCR_RXDSEL(0));
372
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373 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
374 ARRAY_SIZE(pca100_pins), "PCA100");
375 if (ret)
376 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
377
4697bb92 378 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
c8a6885f 379
d5dac4a6 380 imx27_add_imx_uart0(&uart_pdata);
33731698 381
9d3d945a 382 imx27_add_mxc_mmc(1, &sdhc_pdata);
33731698 383
0e7a29a8 384 imx27_add_mxc_nand(&pca100_nand_board_info);
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385
386 /* only the i2c master 1 is used on this CPU card */
387 i2c_register_board_info(1, pca100_i2c_devices,
388 ARRAY_SIZE(pca100_i2c_devices));
389
77a406da 390 imx27_add_imx_i2c(1, &pca100_i2c1_data);
33731698 391
33731698 392#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
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393 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
394 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
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395 spi_register_board_info(pca100_spi_board_info,
396 ARRAY_SIZE(pca100_spi_board_info));
4df772d7 397 imx27_add_spi_imx0(&pca100_spi0_data);
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398#endif
399
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400 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
401 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
402 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
403 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
404
405#if defined(CONFIG_USB_ULPI)
406 if (otg_mode_host) {
407 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
70ddd47f 408 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
eee7c497 409
2eb42d5c 410 imx27_add_mxc_ehci_otg(&otg_pdata);
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411 }
412
413 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
70ddd47f 414 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
eee7c497 415
2eb42d5c 416 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
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417#endif
418 if (!otg_mode_host) {
419 gpio_set_value(OTG_PHY_CS_GPIO, 0);
bd455ed3 420 imx27_add_fsl_usb2_udc(&otg_device_pdata);
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421 }
422
ad851bff 423 imx27_add_imx_fb(&pca100_fb_data);
42216fc5 424
6bd96f3c 425 imx27_add_fec(NULL);
e0a1961d 426 imx27_add_imx2_wdt(NULL);
ae71a562 427 imx27_add_mxc_w1(NULL);
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428}
429
430static void __init pca100_timer_init(void)
431{
432 mx27_clocks_init(26000000);
433}
434
435static struct sys_timer pca100_timer = {
436 .init = pca100_timer_init,
437};
438
439MACHINE_START(PCA100, "phyCARD-i.MX27")
34101237 440 .boot_params = MX27_PHYS_OFFSET + 0x100,
33731698 441 .map_io = mx27_map_io,
f6f1bc64 442 .init_irq = mx27_init_irq,
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443 .init_machine = pca100_init,
444 .timer = &pca100_timer,
445MACHINE_END
446