1 /*
2 * LILLY-1131 module support
3 *
4 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
5 *
6 * based on code for other MX31 boards,
7 *
8 * Copyright 2005-2007 Freescale Semiconductor
9 * Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
10 * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 */
22
23 #include <linux/types.h>
24 #include <linux/init.h>
25 #include <linux/clk.h>
26 #include <linux/gpio.h>
27 #include <linux/delay.h>
28 #include <linux/platform_device.h>
29 #include <linux/interrupt.h>
30 #include <linux/moduleparam.h>
31 #include <linux/smsc911x.h>
32 #include <linux/mtd/physmap.h>
33 #include <linux/spi/spi.h>
34 #include <linux/mfd/mc13783.h>
35 #include <linux/usb/otg.h>
36 #include <linux/usb/ulpi.h>
37 #include <linux/regulator/machine.h>
38 #include <linux/regulator/fixed.h>
39
40 #include <asm/mach-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/time.h>
43 #include <asm/mach/map.h>
44
45 #include "board-mx31lilly.h"
46 #include "common.h"
47 #include "devices-imx31.h"
48 #include "ehci.h"
49 #include "hardware.h"
50 #include "iomux-mx3.h"
51 #include "ulpi.h"
52
53 /*
54 * This file contains module-specific initialization routines for LILLY-1131.
55 * Initialization of peripherals found on the baseboard is implemented in the
56 * appropriate baseboard support code.
57 */
58
59 static unsigned int mx31lilly_pins[] __initdata = {
60 MX31_PIN_CTS1__CTS1,
61 MX31_PIN_RTS1__RTS1,
62 MX31_PIN_TXD1__TXD1,
63 MX31_PIN_RXD1__RXD1,
64 MX31_PIN_CTS2__CTS2,
65 MX31_PIN_RTS2__RTS2,
66 MX31_PIN_TXD2__TXD2,
67 MX31_PIN_RXD2__RXD2,
68 MX31_PIN_CSPI3_MOSI__RXD3,
69 MX31_PIN_CSPI3_MISO__TXD3,
70 MX31_PIN_CSPI3_SCLK__RTS3,
71 MX31_PIN_CSPI3_SPI_RDY__CTS3,
72 };
73
74 /* UART */
75 static const struct imxuart_platform_data uart_pdata __initconst = {
76 .flags = IMXUART_HAVE_RTSCTS,
77 };
78
79 /* SMSC ethernet support */
80
81 static struct resource smsc91x_resources[] = {
82 {
83 .start = MX31_CS4_BASE_ADDR,
84 .end = MX31_CS4_BASE_ADDR + 0xffff,
85 .flags = IORESOURCE_MEM,
86 },
87 {
88 /* irq number is run-time assigned */
89 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
90 }
91 };
92
93 static struct smsc911x_platform_config smsc911x_config = {
94 .phy_interface = PHY_INTERFACE_MODE_MII,
95 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
96 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
97 .flags = SMSC911X_USE_32BIT |
98 SMSC911X_SAVE_MAC_ADDRESS |
99 SMSC911X_FORCE_INTERNAL_PHY,
100 };
101
102 static struct platform_device smsc91x_device = {
103 .name = "smsc911x",
104 .id = -1,
105 .num_resources = ARRAY_SIZE(smsc91x_resources),
106 .resource = smsc91x_resources,
107 .dev = {
108 .platform_data = &smsc911x_config,
109 }
110 };
111
112 /* NOR flash */
113 static struct physmap_flash_data nor_flash_data = {
114 .width = 2,
115 };
116
117 static struct resource nor_flash_resource = {
118 .start = 0xa0000000,
119 .end = 0xa1ffffff,
120 .flags = IORESOURCE_MEM,
121 };
122
123 static struct platform_device physmap_flash_device = {
124 .name = "physmap-flash",
125 .id = 0,
126 .dev = {
127 .platform_data = &nor_flash_data,
128 },
129 .resource = &nor_flash_resource,
130 .num_resources = 1,
131 };
132
133 /* USB */
134
135 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
136 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
137
usbh1_init(struct platform_device * pdev)138 static int usbh1_init(struct platform_device *pdev)
139 {
140 int pins[] = {
141 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
142 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
143 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
144 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
145 MX31_PIN_CSPI1_SS2__USBH1_RCV,
146 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
147 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
148 };
149
150 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
151
152 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
153 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
154 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
155 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
156 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
157 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
158 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
159
160 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
161
162 mdelay(10);
163
164 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
165 MXC_EHCI_INTERFACE_SINGLE_UNI);
166 }
167
usbh2_init(struct platform_device * pdev)168 static int usbh2_init(struct platform_device *pdev)
169 {
170 int pins[] = {
171 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
172 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
173 MX31_PIN_USBH2_CLK__USBH2_CLK,
174 MX31_PIN_USBH2_DIR__USBH2_DIR,
175 MX31_PIN_USBH2_NXT__USBH2_NXT,
176 MX31_PIN_USBH2_STP__USBH2_STP,
177 };
178
179 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
180
181 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
182 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
183 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
184 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
185 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
186 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
187 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
188 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
189 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
190 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
191 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
192 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
193
194 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
195
196 /* chip select */
197 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
198 "USBH2_CS");
199 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
200 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
201
202 mdelay(10);
203
204 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
205 }
206
207 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
208 .init = usbh1_init,
209 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
210 };
211
212 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
213 .init = usbh2_init,
214 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
215 };
216
lilly1131_usb_init(void)217 static void __init lilly1131_usb_init(void)
218 {
219 imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
220
221 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
222 ULPI_OTG_DRVVBUS_EXT);
223 if (usbh2_pdata.otg)
224 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
225 }
226
227 /* SPI */
228
229 static int spi_internal_chipselect[] = {
230 MXC_SPI_CS(0),
231 MXC_SPI_CS(1),
232 MXC_SPI_CS(2),
233 };
234
235 static const struct spi_imx_master spi0_pdata __initconst = {
236 .chipselect = spi_internal_chipselect,
237 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
238 };
239
240 static const struct spi_imx_master spi1_pdata __initconst = {
241 .chipselect = spi_internal_chipselect,
242 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
243 };
244
245 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
246 .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
247 };
248
249 static struct spi_board_info mc13783_dev __initdata = {
250 .modalias = "mc13783",
251 .max_speed_hz = 1000000,
252 .bus_num = 1,
253 .chip_select = 0,
254 .platform_data = &mc13783_pdata,
255 /* irq number is run-time assigned */
256 };
257
258 static struct platform_device *devices[] __initdata = {
259 &smsc91x_device,
260 &physmap_flash_device,
261 };
262
263 static int mx31lilly_baseboard;
264 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
265
266 static struct regulator_consumer_supply dummy_supplies[] = {
267 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
268 REGULATOR_SUPPLY("vddvario", "smsc911x"),
269 };
270
mx31lilly_board_init(void)271 static void __init mx31lilly_board_init(void)
272 {
273 imx31_soc_init();
274
275 mxc_iomux_setup_multiple_pins(mx31lilly_pins,
276 ARRAY_SIZE(mx31lilly_pins), "mx31lily");
277
278 imx31_add_imx_uart0(&uart_pdata);
279 imx31_add_imx_uart1(&uart_pdata);
280 imx31_add_imx_uart2(&uart_pdata);
281
282 mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
283
284 /* SPI */
285 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
286 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
287 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
288 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
289 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
290 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
291 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
292
293 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
294 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
295 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
296 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
297 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
298 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
299 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
300
301 imx31_add_spi_imx0(&spi0_pdata);
302 imx31_add_spi_imx1(&spi1_pdata);
303
304 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
305 }
306
mx31lilly_late_init(void)307 static void __init mx31lilly_late_init(void)
308 {
309 if (mx31lilly_baseboard == MX31LILLY_DB)
310 mx31lilly_db_init();
311
312 mc13783_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
313 spi_register_board_info(&mc13783_dev, 1);
314
315 smsc91x_resources[1].start =
316 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
317 smsc91x_resources[1].end =
318 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
319 platform_add_devices(devices, ARRAY_SIZE(devices));
320
321 /* USB */
322 lilly1131_usb_init();
323 }
324
mx31lilly_timer_init(void)325 static void __init mx31lilly_timer_init(void)
326 {
327 mx31_clocks_init(26000000);
328 }
329
330 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
331 .atag_offset = 0x100,
332 .map_io = mx31_map_io,
333 .init_early = imx31_init_early,
334 .init_irq = mx31_init_irq,
335 .init_time = mx31lilly_timer_init,
336 .init_machine = mx31lilly_board_init,
337 .init_late = mx31lilly_late_init,
338 .restart = mxc_restart,
339 MACHINE_END
340