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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-imx/mach-pca100.c

Version: ~ [ linux-5.6 ] ~ [ linux-5.5.13 ] ~ [ linux-5.4.28 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.113 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.174 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.217 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.217 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.82 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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/property.h>
 24 #include <linux/dma-mapping.h>
 25 #include <linux/spi/spi.h>
 26 #include <linux/spi/eeprom.h>
 27 #include <linux/irq.h>
 28 #include <linux/delay.h>
 29 #include <linux/gpio.h>
 30 #include <linux/usb/otg.h>
 31 #include <linux/usb/ulpi.h>
 32 
 33 #include <asm/mach/arch.h>
 34 #include <asm/mach-types.h>
 35 #include <asm/mach/time.h>
 36 
 37 #include "common.h"
 38 #include "devices-imx27.h"
 39 #include "ehci.h"
 40 #include "hardware.h"
 41 #include "iomux-mx27.h"
 42 #include "ulpi.h"
 43 
 44 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
 45 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
 46 #define SPI1_SS0 (GPIO_PORTD + 28)
 47 #define SPI1_SS1 (GPIO_PORTD + 27)
 48 #define SD2_CD (GPIO_PORTC + 29)
 49 
 50 static const int pca100_pins[] __initconst = {
 51         /* UART1 */
 52         PE12_PF_UART1_TXD,
 53         PE13_PF_UART1_RXD,
 54         PE14_PF_UART1_CTS,
 55         PE15_PF_UART1_RTS,
 56         /* SDHC */
 57         PB4_PF_SD2_D0,
 58         PB5_PF_SD2_D1,
 59         PB6_PF_SD2_D2,
 60         PB7_PF_SD2_D3,
 61         PB8_PF_SD2_CMD,
 62         PB9_PF_SD2_CLK,
 63         SD2_CD | GPIO_GPIO | GPIO_IN,
 64         /* FEC */
 65         PD0_AIN_FEC_TXD0,
 66         PD1_AIN_FEC_TXD1,
 67         PD2_AIN_FEC_TXD2,
 68         PD3_AIN_FEC_TXD3,
 69         PD4_AOUT_FEC_RX_ER,
 70         PD5_AOUT_FEC_RXD1,
 71         PD6_AOUT_FEC_RXD2,
 72         PD7_AOUT_FEC_RXD3,
 73         PD8_AF_FEC_MDIO,
 74         PD9_AIN_FEC_MDC,
 75         PD10_AOUT_FEC_CRS,
 76         PD11_AOUT_FEC_TX_CLK,
 77         PD12_AOUT_FEC_RXD0,
 78         PD13_AOUT_FEC_RX_DV,
 79         PD14_AOUT_FEC_RX_CLK,
 80         PD15_AOUT_FEC_COL,
 81         PD16_AIN_FEC_TX_ER,
 82         PF23_AIN_FEC_TX_EN,
 83         /* SSI1 */
 84         PC20_PF_SSI1_FS,
 85         PC21_PF_SSI1_RXD,
 86         PC22_PF_SSI1_TXD,
 87         PC23_PF_SSI1_CLK,
 88         /* onboard I2C */
 89         PC5_PF_I2C2_SDA,
 90         PC6_PF_I2C2_SCL,
 91         /* external I2C */
 92         PD17_PF_I2C_DATA,
 93         PD18_PF_I2C_CLK,
 94         /* SPI1 */
 95         PD25_PF_CSPI1_RDY,
 96         PD29_PF_CSPI1_SCLK,
 97         PD30_PF_CSPI1_MISO,
 98         PD31_PF_CSPI1_MOSI,
 99         /* OTG */
100         OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
101         PC7_PF_USBOTG_DATA5,
102         PC8_PF_USBOTG_DATA6,
103         PC9_PF_USBOTG_DATA0,
104         PC10_PF_USBOTG_DATA2,
105         PC11_PF_USBOTG_DATA1,
106         PC12_PF_USBOTG_DATA4,
107         PC13_PF_USBOTG_DATA3,
108         PE0_PF_USBOTG_NXT,
109         PE1_PF_USBOTG_STP,
110         PE2_PF_USBOTG_DIR,
111         PE24_PF_USBOTG_CLK,
112         PE25_PF_USBOTG_DATA7,
113         /* USBH2 */
114         USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
115         PA0_PF_USBH2_CLK,
116         PA1_PF_USBH2_DIR,
117         PA2_PF_USBH2_DATA7,
118         PA3_PF_USBH2_NXT,
119         PA4_PF_USBH2_STP,
120         PD19_AF_USBH2_DATA4,
121         PD20_AF_USBH2_DATA3,
122         PD21_AF_USBH2_DATA6,
123         PD22_AF_USBH2_DATA0,
124         PD23_AF_USBH2_DATA2,
125         PD24_AF_USBH2_DATA1,
126         PD26_AF_USBH2_DATA5,
127         /* display */
128         PA5_PF_LSCLK,
129         PA6_PF_LD0,
130         PA7_PF_LD1,
131         PA8_PF_LD2,
132         PA9_PF_LD3,
133         PA10_PF_LD4,
134         PA11_PF_LD5,
135         PA12_PF_LD6,
136         PA13_PF_LD7,
137         PA14_PF_LD8,
138         PA15_PF_LD9,
139         PA16_PF_LD10,
140         PA17_PF_LD11,
141         PA18_PF_LD12,
142         PA19_PF_LD13,
143         PA20_PF_LD14,
144         PA21_PF_LD15,
145         PA22_PF_LD16,
146         PA23_PF_LD17,
147         PA26_PF_PS,
148         PA28_PF_HSYNC,
149         PA29_PF_VSYNC,
150         PA31_PF_OE_ACD,
151         /* free GPIO */
152         GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
153         GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
154         GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
155 };
156 
157 static const struct imxuart_platform_data uart_pdata __initconst = {
158         .flags = IMXUART_HAVE_RTSCTS,
159 };
160 
161 static const struct mxc_nand_platform_data
162 pca100_nand_board_info __initconst = {
163         .width = 1,
164         .hw_ecc = 1,
165 };
166 
167 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
168         .bitrate = 100000,
169 };
170 
171 static const struct property_entry board_eeprom_properties[] = {
172         PROPERTY_ENTRY_U32("pagesize", 32),
173         { }
174 };
175 
176 static struct i2c_board_info pca100_i2c_devices[] = {
177         {
178                 I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
179                 .properties = board_eeprom_properties,
180         }, {
181                 I2C_BOARD_INFO("pcf8563", 0x51),
182         }, {
183                 I2C_BOARD_INFO("lm75", 0x4a),
184         }
185 };
186 
187 static struct spi_eeprom at25320 = {
188         .name           = "at25320an",
189         .byte_len       = 4096,
190         .page_size      = 32,
191         .flags          = EE_ADDR2,
192 };
193 
194 static struct spi_board_info pca100_spi_board_info[] __initdata = {
195         {
196                 .modalias = "at25",
197                 .max_speed_hz = 30000,
198                 .bus_num = 0,
199                 .chip_select = 1,
200                 .platform_data = &at25320,
201         },
202 };
203 
204 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
205 
206 static const struct spi_imx_master pca100_spi0_data __initconst = {
207         .chipselect     = pca100_spi_cs,
208         .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
209 };
210 
211 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
212 {
213         mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
214         gpio_set_value(GPIO_PORTC + 20, 1);
215         udelay(2);
216         gpio_set_value(GPIO_PORTC + 20, 0);
217         mxc_gpio_mode(PC20_PF_SSI1_FS);
218         msleep(2);
219 }
220 
221 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
222 {
223         mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);  /* FS */
224         gpio_set_value(GPIO_PORTC + 20, 0);
225         mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT);  /* TX */
226         gpio_set_value(GPIO_PORTC + 22, 0);
227         mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT);  /* reset */
228         gpio_set_value(GPIO_PORTC + 28, 0);
229         udelay(10);
230         gpio_set_value(GPIO_PORTC + 28, 1);
231         mxc_gpio_mode(PC20_PF_SSI1_FS);
232         mxc_gpio_mode(PC22_PF_SSI1_TXD);
233         msleep(2);
234 }
235 
236 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
237         .ac97_reset             = pca100_ac97_cold_reset,
238         .ac97_warm_reset        = pca100_ac97_warm_reset,
239         .flags                  = IMX_SSI_USE_AC97,
240 };
241 
242 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
243                 void *data)
244 {
245         int ret;
246 
247         ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
248                           IRQF_TRIGGER_FALLING, "imx-mmc-detect", data);
249         if (ret)
250                 printk(KERN_ERR
251                         "pca100: Failed to request irq for sd/mmc detection\n");
252 
253         return ret;
254 }
255 
256 static void pca100_sdhc2_exit(struct device *dev, void *data)
257 {
258         free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
259 }
260 
261 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
262         .init = pca100_sdhc2_init,
263         .exit = pca100_sdhc2_exit,
264 };
265 
266 static int otg_phy_init(struct platform_device *pdev)
267 {
268         gpio_set_value(OTG_PHY_CS_GPIO, 0);
269 
270         mdelay(10);
271 
272         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
273 }
274 
275 static struct mxc_usbh_platform_data otg_pdata __initdata = {
276         .init   = otg_phy_init,
277         .portsc = MXC_EHCI_MODE_ULPI,
278 };
279 
280 static int usbh2_phy_init(struct platform_device *pdev)
281 {
282         gpio_set_value(USBH2_PHY_CS_GPIO, 0);
283 
284         mdelay(10);
285 
286         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
287 }
288 
289 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
290         .init   = usbh2_phy_init,
291         .portsc = MXC_EHCI_MODE_ULPI,
292 };
293 
294 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
295         .operating_mode = FSL_USB2_DR_DEVICE,
296         .phy_mode       = FSL_USB2_PHY_ULPI,
297 };
298 
299 static bool otg_mode_host __initdata;
300 
301 static int __init pca100_otg_mode(char *options)
302 {
303         if (!strcmp(options, "host"))
304                 otg_mode_host = true;
305         else if (!strcmp(options, "device"))
306                 otg_mode_host = false;
307         else
308                 pr_info("otg_mode neither \"host\" nor \"device\". "
309                         "Defaulting to device\n");
310         return 1;
311 }
312 __setup("otg_mode=", pca100_otg_mode);
313 
314 /* framebuffer info */
315 static struct imx_fb_videomode pca100_fb_modes[] = {
316         {
317                 .mode = {
318                         .name           = "EMERGING-ETV570G0DHU",
319                         .refresh        = 60,
320                         .xres           = 640,
321                         .yres           = 480,
322                         .pixclock       = 39722, /* in ps (25.175 MHz) */
323                         .hsync_len      = 30,
324                         .left_margin    = 114,
325                         .right_margin   = 16,
326                         .vsync_len      = 3,
327                         .upper_margin   = 32,
328                         .lower_margin   = 0,
329                 },
330                 /*
331                  * TFT
332                  * Pixel pol active high
333                  * HSYNC active low
334                  * VSYNC active low
335                  * use HSYNC for ACD count
336                  * line clock disable while idle
337                  * always enable line clock even if no data
338                  */
339                 .pcr = 0xf0c08080,
340                 .bpp = 16,
341         },
342 };
343 
344 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
345         .mode = pca100_fb_modes,
346         .num_modes = ARRAY_SIZE(pca100_fb_modes),
347 
348         .pwmr           = 0x00A903FF,
349         .lscr1          = 0x00120300,
350         .dmacr          = 0x00020010,
351 };
352 
353 static void __init pca100_init(void)
354 {
355         int ret;
356 
357         imx27_soc_init();
358 
359         ret = mxc_gpio_setup_multiple_pins(pca100_pins,
360                         ARRAY_SIZE(pca100_pins), "PCA100");
361         if (ret)
362                 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
363 
364         imx27_add_imx_uart0(&uart_pdata);
365 
366         imx27_add_mxc_nand(&pca100_nand_board_info);
367 
368         /* only the i2c master 1 is used on this CPU card */
369         i2c_register_board_info(1, pca100_i2c_devices,
370                                 ARRAY_SIZE(pca100_i2c_devices));
371 
372         imx27_add_imx_i2c(1, &pca100_i2c1_data);
373 
374         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
375         mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
376         spi_register_board_info(pca100_spi_board_info,
377                                 ARRAY_SIZE(pca100_spi_board_info));
378         imx27_add_spi_imx0(&pca100_spi0_data);
379 
380         imx27_add_imx_fb(&pca100_fb_data);
381 
382         imx27_add_fec(NULL);
383         imx27_add_imx2_wdt();
384         imx27_add_mxc_w1();
385 }
386 
387 static void __init pca100_late_init(void)
388 {
389         imx27_add_imx_ssi(0, &pca100_ssi_pdata);
390 
391         imx27_add_mxc_mmc(1, &sdhc_pdata);
392 
393         gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
394         gpio_direction_output(OTG_PHY_CS_GPIO, 1);
395         gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
396         gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
397 
398         if (otg_mode_host) {
399                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
400                                 ULPI_OTG_DRVVBUS_EXT);
401 
402                 if (otg_pdata.otg)
403                         imx27_add_mxc_ehci_otg(&otg_pdata);
404         } else {
405                 gpio_set_value(OTG_PHY_CS_GPIO, 0);
406                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
407         }
408 
409         usbh2_pdata.otg = imx_otg_ulpi_create(
410                         ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
411 
412         if (usbh2_pdata.otg)
413                 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
414 }
415 
416 static void __init pca100_timer_init(void)
417 {
418         mx27_clocks_init(26000000);
419 }
420 
421 MACHINE_START(PCA100, "phyCARD-i.MX27")
422         .atag_offset = 0x100,
423         .map_io = mx27_map_io,
424         .init_early = imx27_init_early,
425         .init_irq = mx27_init_irq,
426         .init_machine   = pca100_init,
427         .init_late      = pca100_late_init,
428         .init_time      = pca100_timer_init,
429         .restart        = mxc_restart,
430 MACHINE_END
431 

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