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33731698 LF |
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> |
eee7c497 SH |
30 | #include <linux/usb/otg.h> |
31 | #include <linux/usb/ulpi.h> | |
32 | #include <linux/fsl_devices.h> | |
33731698 LF |
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 LF |
39 | #include <mach/i2c.h> |
40 | #include <asm/mach/time.h> | |
41 | #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) | |
42 | #include <mach/spi.h> | |
43 | #endif | |
44 | #include <mach/imx-uart.h> | |
c8a6885f SH |
45 | #include <mach/audmux.h> |
46 | #include <mach/ssi.h> | |
33731698 LF |
47 | #include <mach/mxc_nand.h> |
48 | #include <mach/irqs.h> | |
49 | #include <mach/mmc.h> | |
eee7c497 SH |
50 | #include <mach/mxc_ehci.h> |
51 | #include <mach/ulpi.h> | |
33731698 LF |
52 | |
53 | #include "devices.h" | |
54 | ||
eee7c497 SH |
55 | #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23) |
56 | #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24) | |
57 | ||
33731698 LF |
58 | static int pca100_pins[] = { |
59 | /* UART1 */ | |
60 | PE12_PF_UART1_TXD, | |
61 | PE13_PF_UART1_RXD, | |
62 | PE14_PF_UART1_CTS, | |
63 | PE15_PF_UART1_RTS, | |
64 | /* SDHC */ | |
65 | PB4_PF_SD2_D0, | |
66 | PB5_PF_SD2_D1, | |
67 | PB6_PF_SD2_D2, | |
68 | PB7_PF_SD2_D3, | |
69 | PB8_PF_SD2_CMD, | |
70 | PB9_PF_SD2_CLK, | |
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, | |
eee7c497 SH |
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, | |
33731698 LF |
134 | }; |
135 | ||
136 | static struct imxuart_platform_data uart_pdata = { | |
137 | .flags = IMXUART_HAVE_RTSCTS, | |
138 | }; | |
139 | ||
140 | static struct mxc_nand_platform_data pca100_nand_board_info = { | |
141 | .width = 1, | |
142 | .hw_ecc = 1, | |
143 | }; | |
144 | ||
145 | static struct platform_device *platform_devices[] __initdata = { | |
146 | &mxc_w1_master_device, | |
147 | &mxc_fec_device, | |
f13899da | 148 | &mxc_wdt, |
33731698 LF |
149 | }; |
150 | ||
151 | static struct imxi2c_platform_data pca100_i2c_1_data = { | |
152 | .bitrate = 100000, | |
153 | }; | |
154 | ||
155 | static struct at24_platform_data board_eeprom = { | |
156 | .byte_len = 4096, | |
157 | .page_size = 32, | |
158 | .flags = AT24_FLAG_ADDR16, | |
159 | }; | |
160 | ||
161 | static struct i2c_board_info pca100_i2c_devices[] = { | |
162 | { | |
163 | I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ | |
164 | .platform_data = &board_eeprom, | |
165 | }, { | |
166 | I2C_BOARD_INFO("rtc-pcf8563", 0x51), | |
167 | .type = "pcf8563" | |
168 | }, { | |
169 | I2C_BOARD_INFO("lm75", 0x4a), | |
170 | .type = "lm75" | |
171 | } | |
172 | }; | |
173 | ||
174 | #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) | |
175 | static struct spi_eeprom at25320 = { | |
176 | .name = "at25320an", | |
177 | .byte_len = 4096, | |
178 | .page_size = 32, | |
179 | .flags = EE_ADDR2, | |
180 | }; | |
181 | ||
182 | static struct spi_board_info pca100_spi_board_info[] __initdata = { | |
183 | { | |
184 | .modalias = "at25", | |
185 | .max_speed_hz = 30000, | |
186 | .bus_num = 0, | |
187 | .chip_select = 1, | |
188 | .platform_data = &at25320, | |
189 | }, | |
190 | }; | |
191 | ||
192 | static int pca100_spi_cs[] = {GPIO_PORTD + 28, GPIO_PORTD + 27}; | |
193 | ||
194 | static struct spi_imx_master pca100_spi_0_data = { | |
195 | .chipselect = pca100_spi_cs, | |
196 | .num_chipselect = ARRAY_SIZE(pca100_spi_cs), | |
197 | }; | |
198 | #endif | |
199 | ||
c8a6885f SH |
200 | static void pca100_ac97_warm_reset(struct snd_ac97 *ac97) |
201 | { | |
202 | mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); | |
203 | gpio_set_value(GPIO_PORTC + 20, 1); | |
204 | udelay(2); | |
205 | gpio_set_value(GPIO_PORTC + 20, 0); | |
206 | mxc_gpio_mode(PC20_PF_SSI1_FS); | |
207 | msleep(2); | |
208 | } | |
209 | ||
210 | static void pca100_ac97_cold_reset(struct snd_ac97 *ac97) | |
211 | { | |
212 | mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */ | |
213 | gpio_set_value(GPIO_PORTC + 20, 0); | |
214 | mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */ | |
215 | gpio_set_value(GPIO_PORTC + 22, 0); | |
216 | mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */ | |
217 | gpio_set_value(GPIO_PORTC + 28, 0); | |
218 | udelay(10); | |
219 | gpio_set_value(GPIO_PORTC + 28, 1); | |
220 | mxc_gpio_mode(PC20_PF_SSI1_FS); | |
221 | mxc_gpio_mode(PC22_PF_SSI1_TXD); | |
222 | msleep(2); | |
223 | } | |
224 | ||
225 | static struct imx_ssi_platform_data pca100_ssi_pdata = { | |
226 | .ac97_reset = pca100_ac97_cold_reset, | |
227 | .ac97_warm_reset = pca100_ac97_warm_reset, | |
228 | .flags = IMX_SSI_USE_AC97, | |
229 | }; | |
230 | ||
33731698 LF |
231 | static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq, |
232 | void *data) | |
233 | { | |
234 | int ret; | |
235 | ||
236 | ret = request_irq(IRQ_GPIOC(29), detect_irq, | |
237 | IRQF_DISABLED | IRQF_TRIGGER_FALLING, | |
238 | "imx-mmc-detect", data); | |
239 | if (ret) | |
240 | printk(KERN_ERR | |
241 | "pca100: Failed to reuest irq for sd/mmc detection\n"); | |
242 | ||
243 | return ret; | |
244 | } | |
245 | ||
246 | static void pca100_sdhc2_exit(struct device *dev, void *data) | |
247 | { | |
248 | free_irq(IRQ_GPIOC(29), data); | |
249 | } | |
250 | ||
251 | static struct imxmmc_platform_data sdhc_pdata = { | |
252 | .init = pca100_sdhc2_init, | |
253 | .exit = pca100_sdhc2_exit, | |
254 | }; | |
255 | ||
eee7c497 SH |
256 | static int otg_phy_init(struct platform_device *pdev) |
257 | { | |
258 | gpio_set_value(OTG_PHY_CS_GPIO, 0); | |
259 | return 0; | |
260 | } | |
261 | ||
262 | static struct mxc_usbh_platform_data otg_pdata = { | |
263 | .init = otg_phy_init, | |
264 | .portsc = MXC_EHCI_MODE_ULPI, | |
265 | .flags = MXC_EHCI_INTERFACE_DIFF_UNI, | |
266 | }; | |
267 | ||
268 | static int usbh2_phy_init(struct platform_device *pdev) | |
269 | { | |
270 | gpio_set_value(USBH2_PHY_CS_GPIO, 0); | |
271 | return 0; | |
272 | } | |
273 | ||
274 | static struct mxc_usbh_platform_data usbh2_pdata = { | |
275 | .init = usbh2_phy_init, | |
276 | .portsc = MXC_EHCI_MODE_ULPI, | |
277 | .flags = MXC_EHCI_INTERFACE_DIFF_UNI, | |
278 | }; | |
279 | ||
280 | static struct fsl_usb2_platform_data otg_device_pdata = { | |
281 | .operating_mode = FSL_USB2_DR_DEVICE, | |
282 | .phy_mode = FSL_USB2_PHY_ULPI, | |
283 | }; | |
284 | ||
285 | static int otg_mode_host; | |
286 | ||
287 | static int __init pca100_otg_mode(char *options) | |
288 | { | |
289 | if (!strcmp(options, "host")) | |
290 | otg_mode_host = 1; | |
291 | else if (!strcmp(options, "device")) | |
292 | otg_mode_host = 0; | |
293 | else | |
294 | pr_info("otg_mode neither \"host\" nor \"device\". " | |
295 | "Defaulting to device\n"); | |
296 | return 0; | |
297 | } | |
298 | __setup("otg_mode=", pca100_otg_mode); | |
299 | ||
33731698 LF |
300 | static void __init pca100_init(void) |
301 | { | |
302 | int ret; | |
303 | ||
c8a6885f SH |
304 | /* SSI unit */ |
305 | mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, | |
306 | MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */ | |
307 | MXC_AUDMUX_V1_PCR_TFCSEL(3) | | |
308 | MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */ | |
309 | MXC_AUDMUX_V1_PCR_RXDSEL(3)); | |
310 | mxc_audmux_v1_configure_port(3, | |
311 | MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */ | |
312 | MXC_AUDMUX_V1_PCR_TFCSEL(0) | | |
313 | MXC_AUDMUX_V1_PCR_TFSDIR | | |
314 | MXC_AUDMUX_V1_PCR_RXDSEL(0)); | |
315 | ||
33731698 LF |
316 | ret = mxc_gpio_setup_multiple_pins(pca100_pins, |
317 | ARRAY_SIZE(pca100_pins), "PCA100"); | |
318 | if (ret) | |
319 | printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret); | |
320 | ||
c8a6885f SH |
321 | mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata); |
322 | ||
551823e7 | 323 | mxc_register_device(&imx2x_uart_device0, &uart_pdata); |
33731698 LF |
324 | |
325 | mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN); | |
326 | mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata); | |
327 | ||
3636a145 | 328 | mxc_register_device(&imx27_nand_device, &pca100_nand_board_info); |
33731698 LF |
329 | |
330 | /* only the i2c master 1 is used on this CPU card */ | |
331 | i2c_register_board_info(1, pca100_i2c_devices, | |
332 | ARRAY_SIZE(pca100_i2c_devices)); | |
333 | ||
334 | mxc_register_device(&mxc_i2c_device1, &pca100_i2c_1_data); | |
335 | ||
336 | mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT); | |
337 | mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT); | |
338 | ||
339 | /* GPIO0_IRQ */ | |
340 | mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN); | |
341 | /* GPIO1_IRQ */ | |
342 | mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN); | |
343 | /* GPIO2_IRQ */ | |
344 | mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN); | |
345 | ||
346 | #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) | |
347 | spi_register_board_info(pca100_spi_board_info, | |
348 | ARRAY_SIZE(pca100_spi_board_info)); | |
349 | mxc_register_device(&mxc_spi_device0, &pca100_spi_0_data); | |
350 | #endif | |
351 | ||
eee7c497 SH |
352 | gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs"); |
353 | gpio_direction_output(OTG_PHY_CS_GPIO, 1); | |
354 | gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs"); | |
355 | gpio_direction_output(USBH2_PHY_CS_GPIO, 1); | |
356 | ||
357 | #if defined(CONFIG_USB_ULPI) | |
358 | if (otg_mode_host) { | |
359 | otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, | |
360 | USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT); | |
361 | ||
362 | mxc_register_device(&mxc_otg_host, &otg_pdata); | |
363 | } | |
364 | ||
365 | usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, | |
366 | USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT); | |
367 | ||
368 | mxc_register_device(&mxc_usbh2, &usbh2_pdata); | |
369 | #endif | |
370 | if (!otg_mode_host) { | |
371 | gpio_set_value(OTG_PHY_CS_GPIO, 0); | |
372 | mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata); | |
373 | } | |
374 | ||
33731698 LF |
375 | platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); |
376 | } | |
377 | ||
378 | static void __init pca100_timer_init(void) | |
379 | { | |
380 | mx27_clocks_init(26000000); | |
381 | } | |
382 | ||
383 | static struct sys_timer pca100_timer = { | |
384 | .init = pca100_timer_init, | |
385 | }; | |
386 | ||
387 | MACHINE_START(PCA100, "phyCARD-i.MX27") | |
3f35d1f5 UKK |
388 | .phys_io = MX27_AIPI_BASE_ADDR, |
389 | .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc, | |
34101237 | 390 | .boot_params = MX27_PHYS_OFFSET + 0x100, |
33731698 | 391 | .map_io = mx27_map_io, |
f6f1bc64 | 392 | .init_irq = mx27_init_irq, |
33731698 LF |
393 | .init_machine = pca100_init, |
394 | .timer = &pca100_timer, | |
395 | MACHINE_END | |
396 |