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ARM: imx: dynamically allocate imx-ssi devices
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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>
32#include <linux/fsl_devices.h>
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33
34#include <asm/mach/arch.h>
35#include <asm/mach-types.h>
36#include <mach/common.h>
37#include <mach/hardware.h>
e835d88e 38#include <mach/iomux-mx27.h>
33731698 39#include <asm/mach/time.h>
c8a6885f 40#include <mach/audmux.h>
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41#include <mach/mxc_nand.h>
42#include <mach/irqs.h>
43#include <mach/mmc.h>
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44#include <mach/mxc_ehci.h>
45#include <mach/ulpi.h>
42216fc5 46#include <mach/imxfb.h>
33731698 47
0e7a29a8 48#include "devices-imx27.h"
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49#include "devices.h"
50
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51#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
52#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
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53#define SPI1_SS0 (GPIO_PORTD + 28)
54#define SPI1_SS1 (GPIO_PORTD + 27)
55#define SD2_CD (GPIO_PORTC + 29)
eee7c497 56
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57static int pca100_pins[] = {
58 /* UART1 */
59 PE12_PF_UART1_TXD,
60 PE13_PF_UART1_RXD,
61 PE14_PF_UART1_CTS,
62 PE15_PF_UART1_RTS,
63 /* SDHC */
64 PB4_PF_SD2_D0,
65 PB5_PF_SD2_D1,
66 PB6_PF_SD2_D2,
67 PB7_PF_SD2_D3,
68 PB8_PF_SD2_CMD,
69 PB9_PF_SD2_CLK,
b725abad 70 SD2_CD | GPIO_GPIO | GPIO_IN,
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71 /* FEC */
72 PD0_AIN_FEC_TXD0,
73 PD1_AIN_FEC_TXD1,
74 PD2_AIN_FEC_TXD2,
75 PD3_AIN_FEC_TXD3,
76 PD4_AOUT_FEC_RX_ER,
77 PD5_AOUT_FEC_RXD1,
78 PD6_AOUT_FEC_RXD2,
79 PD7_AOUT_FEC_RXD3,
80 PD8_AF_FEC_MDIO,
81 PD9_AIN_FEC_MDC,
82 PD10_AOUT_FEC_CRS,
83 PD11_AOUT_FEC_TX_CLK,
84 PD12_AOUT_FEC_RXD0,
85 PD13_AOUT_FEC_RX_DV,
86 PD14_AOUT_FEC_RX_CLK,
87 PD15_AOUT_FEC_COL,
88 PD16_AIN_FEC_TX_ER,
89 PF23_AIN_FEC_TX_EN,
90 /* SSI1 */
91 PC20_PF_SSI1_FS,
92 PC21_PF_SSI1_RXD,
93 PC22_PF_SSI1_TXD,
94 PC23_PF_SSI1_CLK,
95 /* onboard I2C */
96 PC5_PF_I2C2_SDA,
97 PC6_PF_I2C2_SCL,
98 /* external I2C */
99 PD17_PF_I2C_DATA,
100 PD18_PF_I2C_CLK,
101 /* SPI1 */
102 PD25_PF_CSPI1_RDY,
103 PD29_PF_CSPI1_SCLK,
104 PD30_PF_CSPI1_MISO,
105 PD31_PF_CSPI1_MOSI,
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106 /* OTG */
107 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
108 PC7_PF_USBOTG_DATA5,
109 PC8_PF_USBOTG_DATA6,
110 PC9_PF_USBOTG_DATA0,
111 PC10_PF_USBOTG_DATA2,
112 PC11_PF_USBOTG_DATA1,
113 PC12_PF_USBOTG_DATA4,
114 PC13_PF_USBOTG_DATA3,
115 PE0_PF_USBOTG_NXT,
116 PE1_PF_USBOTG_STP,
117 PE2_PF_USBOTG_DIR,
118 PE24_PF_USBOTG_CLK,
119 PE25_PF_USBOTG_DATA7,
120 /* USBH2 */
121 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
122 PA0_PF_USBH2_CLK,
123 PA1_PF_USBH2_DIR,
124 PA2_PF_USBH2_DATA7,
125 PA3_PF_USBH2_NXT,
126 PA4_PF_USBH2_STP,
127 PD19_AF_USBH2_DATA4,
128 PD20_AF_USBH2_DATA3,
129 PD21_AF_USBH2_DATA6,
130 PD22_AF_USBH2_DATA0,
131 PD23_AF_USBH2_DATA2,
132 PD24_AF_USBH2_DATA1,
133 PD26_AF_USBH2_DATA5,
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134 /* display */
135 PA5_PF_LSCLK,
136 PA6_PF_LD0,
137 PA7_PF_LD1,
138 PA8_PF_LD2,
139 PA9_PF_LD3,
140 PA10_PF_LD4,
141 PA11_PF_LD5,
142 PA12_PF_LD6,
143 PA13_PF_LD7,
144 PA14_PF_LD8,
145 PA15_PF_LD9,
146 PA16_PF_LD10,
147 PA17_PF_LD11,
148 PA18_PF_LD12,
149 PA19_PF_LD13,
150 PA20_PF_LD14,
151 PA21_PF_LD15,
152 PA22_PF_LD16,
153 PA23_PF_LD17,
154 PA26_PF_PS,
155 PA28_PF_HSYNC,
156 PA29_PF_VSYNC,
157 PA31_PF_OE_ACD,
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158 /* free GPIO */
159 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
160 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
161 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
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162};
163
d5dac4a6 164static const struct imxuart_platform_data uart_pdata __initconst = {
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165 .flags = IMXUART_HAVE_RTSCTS,
166};
167
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168static const struct mxc_nand_platform_data
169pca100_nand_board_info __initconst = {
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170 .width = 1,
171 .hw_ecc = 1,
172};
173
174static struct platform_device *platform_devices[] __initdata = {
175 &mxc_w1_master_device,
176 &mxc_fec_device,
f13899da 177 &mxc_wdt,
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178};
179
c6987159 180static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
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181 .bitrate = 100000,
182};
183
184static struct at24_platform_data board_eeprom = {
185 .byte_len = 4096,
186 .page_size = 32,
187 .flags = AT24_FLAG_ADDR16,
188};
189
190static struct i2c_board_info pca100_i2c_devices[] = {
191 {
192 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
193 .platform_data = &board_eeprom,
194 }, {
195 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
196 .type = "pcf8563"
197 }, {
198 I2C_BOARD_INFO("lm75", 0x4a),
199 .type = "lm75"
200 }
201};
202
203#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
204static struct spi_eeprom at25320 = {
205 .name = "at25320an",
206 .byte_len = 4096,
207 .page_size = 32,
208 .flags = EE_ADDR2,
209};
210
211static struct spi_board_info pca100_spi_board_info[] __initdata = {
212 {
213 .modalias = "at25",
214 .max_speed_hz = 30000,
215 .bus_num = 0,
216 .chip_select = 1,
217 .platform_data = &at25320,
218 },
219};
220
b725abad 221static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
33731698 222
7536cf99 223static const struct spi_imx_master pca100_spi0_data __initconst = {
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224 .chipselect = pca100_spi_cs,
225 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
226};
227#endif
228
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229static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
230{
231 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
232 gpio_set_value(GPIO_PORTC + 20, 1);
233 udelay(2);
234 gpio_set_value(GPIO_PORTC + 20, 0);
235 mxc_gpio_mode(PC20_PF_SSI1_FS);
236 msleep(2);
237}
238
239static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
240{
241 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
242 gpio_set_value(GPIO_PORTC + 20, 0);
243 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
244 gpio_set_value(GPIO_PORTC + 22, 0);
245 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
246 gpio_set_value(GPIO_PORTC + 28, 0);
247 udelay(10);
248 gpio_set_value(GPIO_PORTC + 28, 1);
249 mxc_gpio_mode(PC20_PF_SSI1_FS);
250 mxc_gpio_mode(PC22_PF_SSI1_TXD);
251 msleep(2);
252}
253
4697bb92 254static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
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255 .ac97_reset = pca100_ac97_cold_reset,
256 .ac97_warm_reset = pca100_ac97_warm_reset,
257 .flags = IMX_SSI_USE_AC97,
258};
259
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260static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
261 void *data)
262{
263 int ret;
264
265 ret = request_irq(IRQ_GPIOC(29), detect_irq,
266 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
267 "imx-mmc-detect", data);
268 if (ret)
269 printk(KERN_ERR
270 "pca100: Failed to reuest irq for sd/mmc detection\n");
271
272 return ret;
273}
274
275static void pca100_sdhc2_exit(struct device *dev, void *data)
276{
277 free_irq(IRQ_GPIOC(29), data);
278}
279
280static struct imxmmc_platform_data sdhc_pdata = {
281 .init = pca100_sdhc2_init,
282 .exit = pca100_sdhc2_exit,
283};
284
c18e8fa5 285#if defined(CONFIG_USB_ULPI)
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286static int otg_phy_init(struct platform_device *pdev)
287{
288 gpio_set_value(OTG_PHY_CS_GPIO, 0);
289 return 0;
290}
291
292static struct mxc_usbh_platform_data otg_pdata = {
293 .init = otg_phy_init,
294 .portsc = MXC_EHCI_MODE_ULPI,
295 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
296};
297
298static int usbh2_phy_init(struct platform_device *pdev)
299{
300 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
301 return 0;
302}
303
304static struct mxc_usbh_platform_data usbh2_pdata = {
305 .init = usbh2_phy_init,
306 .portsc = MXC_EHCI_MODE_ULPI,
307 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
308};
c18e8fa5 309#endif
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310
311static struct fsl_usb2_platform_data otg_device_pdata = {
312 .operating_mode = FSL_USB2_DR_DEVICE,
313 .phy_mode = FSL_USB2_PHY_ULPI,
314};
315
316static int otg_mode_host;
317
318static int __init pca100_otg_mode(char *options)
319{
320 if (!strcmp(options, "host"))
321 otg_mode_host = 1;
322 else if (!strcmp(options, "device"))
323 otg_mode_host = 0;
324 else
325 pr_info("otg_mode neither \"host\" nor \"device\". "
326 "Defaulting to device\n");
327 return 0;
328}
329__setup("otg_mode=", pca100_otg_mode);
330
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331/* framebuffer info */
332static struct imx_fb_videomode pca100_fb_modes[] = {
333 {
334 .mode = {
335 .name = "EMERGING-ETV570G0DHU",
336 .refresh = 60,
337 .xres = 640,
338 .yres = 480,
339 .pixclock = 39722, /* in ps (25.175 MHz) */
340 .hsync_len = 30,
341 .left_margin = 114,
342 .right_margin = 16,
343 .vsync_len = 3,
344 .upper_margin = 32,
345 .lower_margin = 0,
346 },
347 /*
348 * TFT
349 * Pixel pol active high
350 * HSYNC active low
351 * VSYNC active low
352 * use HSYNC for ACD count
353 * line clock disable while idle
354 * always enable line clock even if no data
355 */
356 .pcr = 0xf0c08080,
357 .bpp = 16,
358 },
359};
360
361static struct imx_fb_platform_data pca100_fb_data = {
362 .mode = pca100_fb_modes,
363 .num_modes = ARRAY_SIZE(pca100_fb_modes),
364
365 .pwmr = 0x00A903FF,
366 .lscr1 = 0x00120300,
367 .dmacr = 0x00020010,
368};
369
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370static void __init pca100_init(void)
371{
372 int ret;
373
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374 /* SSI unit */
375 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
376 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
377 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
378 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
379 MXC_AUDMUX_V1_PCR_RXDSEL(3));
380 mxc_audmux_v1_configure_port(3,
381 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
382 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
383 MXC_AUDMUX_V1_PCR_TFSDIR |
384 MXC_AUDMUX_V1_PCR_RXDSEL(0));
385
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386 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
387 ARRAY_SIZE(pca100_pins), "PCA100");
388 if (ret)
389 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
390
4697bb92 391 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
c8a6885f 392
d5dac4a6 393 imx27_add_imx_uart0(&uart_pdata);
33731698 394
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395 mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
396
0e7a29a8 397 imx27_add_mxc_nand(&pca100_nand_board_info);
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398
399 /* only the i2c master 1 is used on this CPU card */
400 i2c_register_board_info(1, pca100_i2c_devices,
401 ARRAY_SIZE(pca100_i2c_devices));
402
c6987159 403 imx27_add_i2c_imx1(&pca100_i2c1_data);
33731698 404
33731698 405#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
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406 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
407 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
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408 spi_register_board_info(pca100_spi_board_info,
409 ARRAY_SIZE(pca100_spi_board_info));
4df772d7 410 imx27_add_spi_imx0(&pca100_spi0_data);
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411#endif
412
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413 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
414 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
415 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
416 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
417
418#if defined(CONFIG_USB_ULPI)
419 if (otg_mode_host) {
420 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
70ddd47f 421 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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422
423 mxc_register_device(&mxc_otg_host, &otg_pdata);
424 }
425
426 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
70ddd47f 427 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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428
429 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
430#endif
431 if (!otg_mode_host) {
432 gpio_set_value(OTG_PHY_CS_GPIO, 0);
433 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
434 }
435
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436 mxc_register_device(&mxc_fb_device, &pca100_fb_data);
437
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438 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
439}
440
441static void __init pca100_timer_init(void)
442{
443 mx27_clocks_init(26000000);
444}
445
446static struct sys_timer pca100_timer = {
447 .init = pca100_timer_init,
448};
449
450MACHINE_START(PCA100, "phyCARD-i.MX27")
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451 .phys_io = MX27_AIPI_BASE_ADDR,
452 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
34101237 453 .boot_params = MX27_PHYS_OFFSET + 0x100,
33731698 454 .map_io = mx27_map_io,
f6f1bc64 455 .init_irq = mx27_init_irq,
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456 .init_machine = pca100_init,
457 .timer = &pca100_timer,
458MACHINE_END
459