1 /*
2 * Copyright (C) 2009 Eric Benard - eric@eukrea.com
3 *
4 * Based on pcm038.c which is :
5 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
6 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 * MA 02110-1301, USA.
21 */
22
23 #include <linux/i2c.h>
24 #include <linux/io.h>
25 #include <linux/mtd/plat-ram.h>
26 #include <linux/mtd/physmap.h>
27 #include <linux/platform_device.h>
28 #include <linux/serial_8250.h>
29 #include <linux/usb/otg.h>
30 #include <linux/usb/ulpi.h>
31
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/time.h>
35 #include <asm/mach/map.h>
36
37 #include <mach/eukrea-baseboards.h>
38 #include <mach/common.h>
39 #include <mach/hardware.h>
40 #include <mach/iomux-mx27.h>
41 #include <mach/ulpi.h>
42
43 #include "devices-imx27.h"
44
45 static const int eukrea_cpuimx27_pins[] __initconst = {
46 /* UART1 */
47 PE12_PF_UART1_TXD,
48 PE13_PF_UART1_RXD,
49 PE14_PF_UART1_CTS,
50 PE15_PF_UART1_RTS,
51 /* UART4 */
52 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
53 PB26_AF_UART4_RTS,
54 PB28_AF_UART4_TXD,
55 PB29_AF_UART4_CTS,
56 PB31_AF_UART4_RXD,
57 #endif
58 /* FEC */
59 PD0_AIN_FEC_TXD0,
60 PD1_AIN_FEC_TXD1,
61 PD2_AIN_FEC_TXD2,
62 PD3_AIN_FEC_TXD3,
63 PD4_AOUT_FEC_RX_ER,
64 PD5_AOUT_FEC_RXD1,
65 PD6_AOUT_FEC_RXD2,
66 PD7_AOUT_FEC_RXD3,
67 PD8_AF_FEC_MDIO,
68 PD9_AIN_FEC_MDC,
69 PD10_AOUT_FEC_CRS,
70 PD11_AOUT_FEC_TX_CLK,
71 PD12_AOUT_FEC_RXD0,
72 PD13_AOUT_FEC_RX_DV,
73 PD14_AOUT_FEC_RX_CLK,
74 PD15_AOUT_FEC_COL,
75 PD16_AIN_FEC_TX_ER,
76 PF23_AIN_FEC_TX_EN,
77 /* I2C1 */
78 PD17_PF_I2C_DATA,
79 PD18_PF_I2C_CLK,
80 /* SDHC2 */
81 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
82 PB4_PF_SD2_D0,
83 PB5_PF_SD2_D1,
84 PB6_PF_SD2_D2,
85 PB7_PF_SD2_D3,
86 PB8_PF_SD2_CMD,
87 PB9_PF_SD2_CLK,
88 #endif
89 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
90 /* Quad UART's IRQ */
91 GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
92 GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
93 GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
94 GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
95 #endif
96 /* OTG */
97 PC7_PF_USBOTG_DATA5,
98 PC8_PF_USBOTG_DATA6,
99 PC9_PF_USBOTG_DATA0,
100 PC10_PF_USBOTG_DATA2,
101 PC11_PF_USBOTG_DATA1,
102 PC12_PF_USBOTG_DATA4,
103 PC13_PF_USBOTG_DATA3,
104 PE0_PF_USBOTG_NXT,
105 PE1_PF_USBOTG_STP,
106 PE2_PF_USBOTG_DIR,
107 PE24_PF_USBOTG_CLK,
108 PE25_PF_USBOTG_DATA7,
109 /* USBH2 */
110 PA0_PF_USBH2_CLK,
111 PA1_PF_USBH2_DIR,
112 PA2_PF_USBH2_DATA7,
113 PA3_PF_USBH2_NXT,
114 PA4_PF_USBH2_STP,
115 PD19_AF_USBH2_DATA4,
116 PD20_AF_USBH2_DATA3,
117 PD21_AF_USBH2_DATA6,
118 PD22_AF_USBH2_DATA0,
119 PD23_AF_USBH2_DATA2,
120 PD24_AF_USBH2_DATA1,
121 PD26_AF_USBH2_DATA5,
122 };
123
124 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
125 .width = 2,
126 };
127
128 static struct resource eukrea_cpuimx27_flash_resource = {
129 .start = 0xc0000000,
130 .end = 0xc3ffffff,
131 .flags = IORESOURCE_MEM,
132 };
133
134 static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
135 .name = "physmap-flash",
136 .id = 0,
137 .dev = {
138 .platform_data = &eukrea_cpuimx27_flash_data,
139 },
140 .num_resources = 1,
141 .resource = &eukrea_cpuimx27_flash_resource,
142 };
143
144 static const struct imxuart_platform_data uart_pdata __initconst = {
145 .flags = IMXUART_HAVE_RTSCTS,
146 };
147
148 static const struct mxc_nand_platform_data
149 cpuimx27_nand_board_info __initconst = {
150 .width = 1,
151 .hw_ecc = 1,
152 };
153
154 static struct platform_device *platform_devices[] __initdata = {
155 &eukrea_cpuimx27_nor_mtd_device,
156 };
157
158 static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
159 .bitrate = 100000,
160 };
161
162 static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
163 {
164 I2C_BOARD_INFO("pcf8563", 0x51),
165 },
166 };
167
168 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
169 static struct plat_serial8250_port serial_platform_data[] = {
170 {
171 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
172 .irq = IRQ_GPIOB(23),
173 .uartclk = 14745600,
174 .regshift = 1,
175 .iotype = UPIO_MEM,
176 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
177 }, {
178 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
179 .irq = IRQ_GPIOB(22),
180 .uartclk = 14745600,
181 .regshift = 1,
182 .iotype = UPIO_MEM,
183 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
184 }, {
185 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
186 .irq = IRQ_GPIOB(27),
187 .uartclk = 14745600,
188 .regshift = 1,
189 .iotype = UPIO_MEM,
190 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
191 }, {
192 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
193 .irq = IRQ_GPIOB(30),
194 .uartclk = 14745600,
195 .regshift = 1,
196 .iotype = UPIO_MEM,
197 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
198 }, {
199 }
200 };
201
202 static struct platform_device serial_device = {
203 .name = "serial8250",
204 .id = 0,
205 .dev = {
206 .platform_data = serial_platform_data,
207 },
208 };
209 #endif
210
eukrea_cpuimx27_otg_init(struct platform_device * pdev)211 static int eukrea_cpuimx27_otg_init(struct platform_device *pdev)
212 {
213 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
214 }
215
216 static struct mxc_usbh_platform_data otg_pdata __initdata = {
217 .init = eukrea_cpuimx27_otg_init,
218 .portsc = MXC_EHCI_MODE_ULPI,
219 };
220
eukrea_cpuimx27_usbh2_init(struct platform_device * pdev)221 static int eukrea_cpuimx27_usbh2_init(struct platform_device *pdev)
222 {
223 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
224 }
225
226 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
227 .init = eukrea_cpuimx27_usbh2_init,
228 .portsc = MXC_EHCI_MODE_ULPI,
229 };
230
231 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
232 .operating_mode = FSL_USB2_DR_DEVICE,
233 .phy_mode = FSL_USB2_PHY_ULPI,
234 };
235
236 static int otg_mode_host;
237
eukrea_cpuimx27_otg_mode(char * options)238 static int __init eukrea_cpuimx27_otg_mode(char *options)
239 {
240 if (!strcmp(options, "host"))
241 otg_mode_host = 1;
242 else if (!strcmp(options, "device"))
243 otg_mode_host = 0;
244 else
245 pr_info("otg_mode neither \"host\" nor \"device\". "
246 "Defaulting to device\n");
247 return 0;
248 }
249 __setup("otg_mode=", eukrea_cpuimx27_otg_mode);
250
eukrea_cpuimx27_init(void)251 static void __init eukrea_cpuimx27_init(void)
252 {
253 imx27_soc_init();
254
255 mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
256 ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
257
258 imx27_add_imx_uart0(&uart_pdata);
259
260 imx27_add_mxc_nand(&cpuimx27_nand_board_info);
261
262 i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
263 ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
264
265 imx27_add_imx_i2c(0, &cpuimx27_i2c1_data);
266
267 imx27_add_fec(NULL);
268 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
269 imx27_add_imx2_wdt(NULL);
270 imx27_add_mxc_w1(NULL);
271
272 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
273 /* SDHC2 can be used for Wifi */
274 imx27_add_mxc_mmc(1, NULL);
275 #endif
276 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
277 /* in which case UART4 is also used for Bluetooth */
278 imx27_add_imx_uart3(&uart_pdata);
279 #endif
280
281 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
282 platform_device_register(&serial_device);
283 #endif
284
285 if (otg_mode_host) {
286 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
287 ULPI_OTG_DRVVBUS_EXT);
288 if (otg_pdata.otg)
289 imx27_add_mxc_ehci_otg(&otg_pdata);
290 } else {
291 imx27_add_fsl_usb2_udc(&otg_device_pdata);
292 }
293
294 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
295 ULPI_OTG_DRVVBUS_EXT);
296 if (usbh2_pdata.otg)
297 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
298
299 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
300 eukrea_mbimx27_baseboard_init();
301 #endif
302 }
303
eukrea_cpuimx27_timer_init(void)304 static void __init eukrea_cpuimx27_timer_init(void)
305 {
306 mx27_clocks_init(26000000);
307 }
308
309 static struct sys_timer eukrea_cpuimx27_timer = {
310 .init = eukrea_cpuimx27_timer_init,
311 };
312
313 MACHINE_START(EUKREA_CPUIMX27, "EUKREA CPUIMX27")
314 .atag_offset = 0x100,
315 .map_io = mx27_map_io,
316 .init_early = imx27_init_early,
317 .init_irq = mx27_init_irq,
318 .handle_irq = imx27_handle_irq,
319 .timer = &eukrea_cpuimx27_timer,
320 .init_machine = eukrea_cpuimx27_init,
321 .restart = mxc_restart,
322 MACHINE_END
323