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[mirror_ubuntu-eoan-kernel.git] / arch / arm / mach-imx / mach-mx31lite.c
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1/*
2 * Copyright (C) 2000 Deep Blue Solutions Ltd
3 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
4 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
84677d11 5 * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
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6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
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.
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16 */
17
18#include <linux/types.h>
19#include <linux/init.h>
20#include <linux/kernel.h>
21#include <linux/memory.h>
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22#include <linux/platform_device.h>
23#include <linux/gpio.h>
9e907416 24#include <linux/moduleparam.h>
3211705f 25#include <linux/smsc911x.h>
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26#include <linux/mfd/mc13783.h>
27#include <linux/spi/spi.h>
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28#include <linux/usb/otg.h>
29#include <linux/usb/ulpi.h>
6d3e6601 30#include <linux/mtd/physmap.h>
4bd597b6 31#include <linux/delay.h>
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32#include <linux/regulator/machine.h>
33#include <linux/regulator/fixed.h>
9a4cd7a5 34
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35#include <asm/mach-types.h>
36#include <asm/mach/arch.h>
9e8a30dc 37#include <asm/mach/time.h>
9a4cd7a5 38#include <asm/mach/map.h>
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39#include <asm/page.h>
40#include <asm/setup.h>
84677d11 41
3ed0bcb4 42#include "board-mx31lite.h"
e3372474 43#include "common.h"
a2ceeef5 44#include "devices-imx31.h"
641dfe8b 45#include "ehci.h"
50f2de61 46#include "hardware.h"
267dd34c 47#include "iomux-mx3.h"
39ef6340 48#include "ulpi.h"
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49
50/*
b7d91a62 51 * This file contains the module-specific initialization routines.
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52 */
53
a854b8ab 54static unsigned int mx31lite_pins[] = {
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55 /* LAN9117 IRQ pin */
56 IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
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57 /* SPI 1 */
58 MX31_PIN_CSPI2_SCLK__SCLK,
59 MX31_PIN_CSPI2_MOSI__MOSI,
60 MX31_PIN_CSPI2_MISO__MISO,
61 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
62 MX31_PIN_CSPI2_SS0__SS0,
63 MX31_PIN_CSPI2_SS1__SS1,
64 MX31_PIN_CSPI2_SS2__SS2,
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65};
66
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67static const struct mxc_nand_platform_data
68mx31lite_nand_board_info __initconst = {
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69 .width = 1,
70 .hw_ecc = 1,
71};
72
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73static struct smsc911x_platform_config smsc911x_config = {
74 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
75 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
76 .flags = SMSC911X_USE_16BIT,
77};
78
79static struct resource smsc911x_resources[] = {
3f4f54b4 80 {
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81 .start = MX31_CS4_BASE_ADDR,
82 .end = MX31_CS4_BASE_ADDR + 0x100,
3211705f 83 .flags = IORESOURCE_MEM,
3f4f54b4 84 }, {
ed175343 85 /* irq number is run-time assigned */
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86 .flags = IORESOURCE_IRQ,
87 },
88};
89
90static struct platform_device smsc911x_device = {
91 .name = "smsc911x",
92 .id = -1,
93 .num_resources = ARRAY_SIZE(smsc911x_resources),
94 .resource = smsc911x_resources,
95 .dev = {
96 .platform_data = &smsc911x_config,
97 },
98};
99
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100/*
101 * SPI
102 *
103 * The MC13783 is the only hard-wired SPI device on the module.
104 */
105
106static int spi_internal_chipselect[] = {
107 MXC_SPI_CS(0),
108};
109
06606ff1 110static const struct spi_imx_master spi1_pdata __initconst = {
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111 .chipselect = spi_internal_chipselect,
112 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
113};
114
5836372e 115static struct mc13xxx_platform_data mc13783_pdata __initdata = {
46621ebb 116 .flags = MC13XXX_USE_RTC,
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117};
118
119static struct spi_board_info mc13783_spi_dev __initdata = {
120 .modalias = "mc13783",
121 .max_speed_hz = 1000000,
122 .bus_num = 1,
123 .chip_select = 0,
124 .platform_data = &mc13783_pdata,
ed175343 125 /* irq number is run-time assigned */
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126};
127
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128/*
129 * USB
130 */
131
132#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
133 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
134
135static int usbh2_init(struct platform_device *pdev)
136{
137 int pins[] = {
138 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
139 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
140 MX31_PIN_USBH2_CLK__USBH2_CLK,
141 MX31_PIN_USBH2_DIR__USBH2_DIR,
142 MX31_PIN_USBH2_NXT__USBH2_NXT,
143 MX31_PIN_USBH2_STP__USBH2_STP,
144 };
145
146 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
147
148 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
149 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
150 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
151 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
152 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
153 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
154 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
155 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
156 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
157 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
158 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
159 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
160
161 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
162
163 /* chip select */
164 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
165 "USBH2_CS");
166 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
167 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
168
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169 mdelay(10);
170
171 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
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172}
173
2d58de28 174static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
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175 .init = usbh2_init,
176 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
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177};
178
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179/*
180 * NOR flash
181 */
182
183static struct physmap_flash_data nor_flash_data = {
184 .width = 2,
185};
186
187static struct resource nor_flash_resource = {
188 .start = 0xa0000000,
189 .end = 0xa1ffffff,
190 .flags = IORESOURCE_MEM,
191};
192
193static struct platform_device physmap_flash_device = {
194 .name = "physmap-flash",
195 .id = 0,
196 .dev = {
197 .platform_data = &nor_flash_data,
198 },
199 .resource = &nor_flash_resource,
200 .num_resources = 1,
201};
202
203
204
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205/*
206 * This structure defines the MX31 memory map.
207 */
208static struct map_desc mx31lite_io_desc[] __initdata = {
209 {
f25d696a 210 .virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
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211 .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
212 .length = MX31_CS4_SIZE,
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213 .type = MT_DEVICE
214 }
215};
216
217/*
218 * Set up static virtual mappings.
219 */
220void __init mx31lite_map_io(void)
221{
cd4a05f9 222 mx31_map_io();
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223 iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
224}
225
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226static int mx31lite_baseboard;
227core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
228
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229static struct regulator_consumer_supply dummy_supplies[] = {
230 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
231 REGULATOR_SUPPLY("vddvario", "smsc911x"),
232};
233
e134fb2b 234static void __init mx31lite_init(void)
9a4cd7a5 235{
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236 int ret;
237
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238 imx31_soc_init();
239
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240 switch (mx31lite_baseboard) {
241 case MX31LITE_NOBOARD:
242 break;
243 case MX31LITE_DB:
244 mx31lite_db_init();
245 break;
246 default:
247 printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
248 mx31lite_baseboard);
249 }
250
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251 mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
252 "mx31lite");
253
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254 /* NOR and NAND flash */
255 platform_device_register(&physmap_flash_device);
a2ceeef5 256 imx31_add_mxc_nand(&mx31lite_nand_board_info);
6d3e6601 257
06606ff1 258 imx31_add_spi_imx1(&spi1_pdata);
ed175343 259 mc13783_spi_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
84677d11 260 spi_register_board_info(&mc13783_spi_dev, 1);
3211705f 261
a050c8e9 262 /* USB */
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263 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
264 ULPI_OTG_DRVVBUS_EXT);
265 if (usbh2_pdata.otg)
266 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
a050c8e9 267
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268 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
269
3211705f 270 /* SMSC9117 IRQ pin */
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271 ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
272 if (ret)
273 pr_warning("could not get LAN irq gpio\n");
274 else {
275 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
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276 smsc911x_resources[1].start =
277 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
278 smsc911x_resources[1].end =
279 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
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280 platform_device_register(&smsc911x_device);
281 }
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282}
283
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284static void __init mx31lite_timer_init(void)
285{
30c730f8 286 mx31_clocks_init(26000000);
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287}
288
b7d91a62 289MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
9a4cd7a5 290 /* Maintainer: Freescale Semiconductor, Inc. */
dc8f1907 291 .atag_offset = 0x100,
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292 .map_io = mx31lite_map_io,
293 .init_early = imx31_init_early,
294 .init_irq = mx31_init_irq,
6bb27d73 295 .init_time = mx31lite_timer_init,
e134fb2b 296 .init_machine = mx31lite_init,
65ea7884 297 .restart = mxc_restart,
9a4cd7a5 298MACHINE_END