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 /* SMSC ethernet support */
60
61 static struct resource smsc91x_resources[] = {
62 {
63 .start = MX31_CS4_BASE_ADDR,
64 .end = MX31_CS4_BASE_ADDR + 0xffff,
65 .flags = IORESOURCE_MEM,
66 },
67 {
68 /* irq number is run-time assigned */
69 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
70 }
71 };
72
73 static struct smsc911x_platform_config smsc911x_config = {
74 .phy_interface = PHY_INTERFACE_MODE_MII,
75 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
76 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
77 .flags = SMSC911X_USE_32BIT |
78 SMSC911X_SAVE_MAC_ADDRESS |
79 SMSC911X_FORCE_INTERNAL_PHY,
80 };
81
82 static struct platform_device smsc91x_device = {
83 .name = "smsc911x",
84 .id = -1,
85 .num_resources = ARRAY_SIZE(smsc91x_resources),
86 .resource = smsc91x_resources,
87 .dev = {
88 .platform_data = &smsc911x_config,
89 }
90 };
91
92 /* NOR flash */
93 static struct physmap_flash_data nor_flash_data = {
94 .width = 2,
95 };
96
97 static struct resource nor_flash_resource = {
98 .start = 0xa0000000,
99 .end = 0xa1ffffff,
100 .flags = IORESOURCE_MEM,
101 };
102
103 static struct platform_device physmap_flash_device = {
104 .name = "physmap-flash",
105 .id = 0,
106 .dev = {
107 .platform_data = &nor_flash_data,
108 },
109 .resource = &nor_flash_resource,
110 .num_resources = 1,
111 };
112
113 /* USB */
114
115 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
116 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
117
usbh1_init(struct platform_device * pdev)118 static int usbh1_init(struct platform_device *pdev)
119 {
120 int pins[] = {
121 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
122 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
123 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
124 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
125 MX31_PIN_CSPI1_SS2__USBH1_RCV,
126 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
127 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
128 };
129
130 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
131
132 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
133 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
134 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
135 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
136 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
137 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
138 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
139
140 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
141
142 mdelay(10);
143
144 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
145 MXC_EHCI_INTERFACE_SINGLE_UNI);
146 }
147
usbh2_init(struct platform_device * pdev)148 static int usbh2_init(struct platform_device *pdev)
149 {
150 int pins[] = {
151 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
152 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
153 MX31_PIN_USBH2_CLK__USBH2_CLK,
154 MX31_PIN_USBH2_DIR__USBH2_DIR,
155 MX31_PIN_USBH2_NXT__USBH2_NXT,
156 MX31_PIN_USBH2_STP__USBH2_STP,
157 };
158
159 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
160
161 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
162 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
163 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
164 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
165 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
166 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
167 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
168 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
169 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
170 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
171 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
172 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
173
174 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
175
176 /* chip select */
177 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
178 "USBH2_CS");
179 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
180 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
181
182 mdelay(10);
183
184 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
185 }
186
187 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
188 .init = usbh1_init,
189 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
190 };
191
192 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
193 .init = usbh2_init,
194 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
195 };
196
lilly1131_usb_init(void)197 static void __init lilly1131_usb_init(void)
198 {
199 imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
200
201 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
202 ULPI_OTG_DRVVBUS_EXT);
203 if (usbh2_pdata.otg)
204 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
205 }
206
207 /* SPI */
208
209 static int spi_internal_chipselect[] = {
210 MXC_SPI_CS(0),
211 MXC_SPI_CS(1),
212 MXC_SPI_CS(2),
213 };
214
215 static const struct spi_imx_master spi0_pdata __initconst = {
216 .chipselect = spi_internal_chipselect,
217 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
218 };
219
220 static const struct spi_imx_master spi1_pdata __initconst = {
221 .chipselect = spi_internal_chipselect,
222 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
223 };
224
225 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
226 .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
227 };
228
229 static struct spi_board_info mc13783_dev __initdata = {
230 .modalias = "mc13783",
231 .max_speed_hz = 1000000,
232 .bus_num = 1,
233 .chip_select = 0,
234 .platform_data = &mc13783_pdata,
235 /* irq number is run-time assigned */
236 };
237
238 static struct platform_device *devices[] __initdata = {
239 &smsc91x_device,
240 &physmap_flash_device,
241 };
242
243 static int mx31lilly_baseboard;
244 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
245
246 static struct regulator_consumer_supply dummy_supplies[] = {
247 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
248 REGULATOR_SUPPLY("vddvario", "smsc911x"),
249 };
250
mx31lilly_board_init(void)251 static void __init mx31lilly_board_init(void)
252 {
253 imx31_soc_init();
254
255 switch (mx31lilly_baseboard) {
256 case MX31LILLY_NOBOARD:
257 break;
258 case MX31LILLY_DB:
259 mx31lilly_db_init();
260 break;
261 default:
262 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
263 mx31lilly_baseboard);
264 }
265
266 mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
267
268 /* SPI */
269 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
270 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
271 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
272 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
273 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
274 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
275 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
276
277 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
278 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
279 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
280 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
281 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
282 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
283 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
284
285 imx31_add_spi_imx0(&spi0_pdata);
286 imx31_add_spi_imx1(&spi1_pdata);
287 mc13783_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
288 spi_register_board_info(&mc13783_dev, 1);
289
290 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
291
292 smsc91x_resources[1].start =
293 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
294 smsc91x_resources[1].end =
295 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
296 platform_add_devices(devices, ARRAY_SIZE(devices));
297
298 /* USB */
299 lilly1131_usb_init();
300 }
301
mx31lilly_timer_init(void)302 static void __init mx31lilly_timer_init(void)
303 {
304 mx31_clocks_init(26000000);
305 }
306
307 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
308 .atag_offset = 0x100,
309 .map_io = mx31_map_io,
310 .init_early = imx31_init_early,
311 .init_irq = mx31_init_irq,
312 .init_time = mx31lilly_timer_init,
313 .init_machine = mx31lilly_board_init,
314 .restart = mxc_restart,
315 MACHINE_END
316