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/smsc911x.h>
31 #include <linux/mtd/physmap.h>
32 #include <linux/spi/spi.h>
33 #include <linux/mfd/mc13783.h>
34 #include <linux/usb/otg.h>
35 #include <linux/usb/ulpi.h>
36
37 #include <asm/mach-types.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/time.h>
40 #include <asm/mach/map.h>
41
42 #include <mach/hardware.h>
43 #include <mach/common.h>
44 #include <mach/iomux-mx3.h>
45 #include <mach/board-mx31lilly.h>
46 #include <mach/ulpi.h>
47
48 #include "devices-imx31.h"
49 #include "devices.h"
50
51 /*
52 * This file contains module-specific initialization routines for LILLY-1131.
53 * Initialization of peripherals found on the baseboard is implemented in the
54 * appropriate baseboard support code.
55 */
56
57 /* SMSC ethernet support */
58
59 static struct resource smsc91x_resources[] = {
60 {
61 .start = MX31_CS4_BASE_ADDR,
62 .end = MX31_CS4_BASE_ADDR + 0xffff,
63 .flags = IORESOURCE_MEM,
64 },
65 {
66 .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
67 .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
68 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
69 }
70 };
71
72 static struct smsc911x_platform_config smsc911x_config = {
73 .phy_interface = PHY_INTERFACE_MODE_MII,
74 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
75 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
76 .flags = SMSC911X_USE_32BIT |
77 SMSC911X_SAVE_MAC_ADDRESS |
78 SMSC911X_FORCE_INTERNAL_PHY,
79 };
80
81 static struct platform_device smsc91x_device = {
82 .name = "smsc911x",
83 .id = -1,
84 .num_resources = ARRAY_SIZE(smsc91x_resources),
85 .resource = smsc91x_resources,
86 .dev = {
87 .platform_data = &smsc911x_config,
88 }
89 };
90
91 /* NOR flash */
92 static struct physmap_flash_data nor_flash_data = {
93 .width = 2,
94 };
95
96 static struct resource nor_flash_resource = {
97 .start = 0xa0000000,
98 .end = 0xa1ffffff,
99 .flags = IORESOURCE_MEM,
100 };
101
102 static struct platform_device physmap_flash_device = {
103 .name = "physmap-flash",
104 .id = 0,
105 .dev = {
106 .platform_data = &nor_flash_data,
107 },
108 .resource = &nor_flash_resource,
109 .num_resources = 1,
110 };
111
112 /* USB */
113
114 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
115 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
116
usbh1_init(struct platform_device * pdev)117 static int usbh1_init(struct platform_device *pdev)
118 {
119 int pins[] = {
120 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
121 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
122 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
123 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
124 MX31_PIN_CSPI1_SS2__USBH1_RCV,
125 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
126 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
127 };
128
129 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
130
131 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
132 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
133 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
134 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
135 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
136 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
137 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
138
139 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
140
141 mdelay(10);
142
143 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
144 MXC_EHCI_INTERFACE_SINGLE_UNI);
145 }
146
usbh2_init(struct platform_device * pdev)147 static int usbh2_init(struct platform_device *pdev)
148 {
149 int pins[] = {
150 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
151 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
152 MX31_PIN_USBH2_CLK__USBH2_CLK,
153 MX31_PIN_USBH2_DIR__USBH2_DIR,
154 MX31_PIN_USBH2_NXT__USBH2_NXT,
155 MX31_PIN_USBH2_STP__USBH2_STP,
156 };
157
158 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
159
160 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
161 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
162 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
163 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
164 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
165 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
166 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
167 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
168 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
169 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
170 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
171 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
172
173 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
174
175 /* chip select */
176 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
177 "USBH2_CS");
178 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
179 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
180
181 mdelay(10);
182
183 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
184 }
185
186 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
187 .init = usbh1_init,
188 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
189 };
190
191 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
192 .init = usbh2_init,
193 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
194 };
195
lilly1131_usb_init(void)196 static void lilly1131_usb_init(void)
197 {
198 imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
199
200 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
201 ULPI_OTG_DRVVBUS_EXT);
202 if (usbh2_pdata.otg)
203 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
204 }
205
206 /* SPI */
207
208 static int spi_internal_chipselect[] = {
209 MXC_SPI_CS(0),
210 MXC_SPI_CS(1),
211 MXC_SPI_CS(2),
212 };
213
214 static const struct spi_imx_master spi0_pdata __initconst = {
215 .chipselect = spi_internal_chipselect,
216 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
217 };
218
219 static const struct spi_imx_master spi1_pdata __initconst = {
220 .chipselect = spi_internal_chipselect,
221 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
222 };
223
224 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
225 .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
226 };
227
228 static struct spi_board_info mc13783_dev __initdata = {
229 .modalias = "mc13783",
230 .max_speed_hz = 1000000,
231 .bus_num = 1,
232 .chip_select = 0,
233 .platform_data = &mc13783_pdata,
234 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
235 };
236
237 static struct platform_device *devices[] __initdata = {
238 &smsc91x_device,
239 &physmap_flash_device,
240 };
241
242 static int mx31lilly_baseboard;
243 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
244
mx31lilly_board_init(void)245 static void __init mx31lilly_board_init(void)
246 {
247 switch (mx31lilly_baseboard) {
248 case MX31LILLY_NOBOARD:
249 break;
250 case MX31LILLY_DB:
251 mx31lilly_db_init();
252 break;
253 default:
254 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
255 mx31lilly_baseboard);
256 }
257
258 mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
259
260 /* SPI */
261 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
262 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
263 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
264 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
265 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
266 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
267 mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
268
269 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
270 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
271 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
272 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
273 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
274 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
275 mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
276
277 imx31_add_spi_imx0(&spi0_pdata);
278 imx31_add_spi_imx1(&spi1_pdata);
279 spi_register_board_info(&mc13783_dev, 1);
280
281 platform_add_devices(devices, ARRAY_SIZE(devices));
282
283 /* USB */
284 lilly1131_usb_init();
285 }
286
mx31lilly_timer_init(void)287 static void __init mx31lilly_timer_init(void)
288 {
289 mx31_clocks_init(26000000);
290 }
291
292 static struct sys_timer mx31lilly_timer = {
293 .init = mx31lilly_timer_init,
294 };
295
296 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
297 .boot_params = MX3x_PHYS_OFFSET + 0x100,
298 .map_io = mx31_map_io,
299 .init_early = imx31_init_early,
300 .init_irq = mx31_init_irq,
301 .timer = &mx31lilly_timer,
302 .init_machine = mx31lilly_board_init,
303 MACHINE_END
304