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.
5 * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
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.
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.
18 #include <linux/types.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/memory.h>
22 #include <linux/platform_device.h>
23 #include <linux/gpio.h>
24 #include <linux/moduleparam.h>
25 #include <linux/smsc911x.h>
26 #include <linux/mfd/mc13783.h>
27 #include <linux/spi/spi.h>
28 #include <linux/usb/otg.h>
29 #include <linux/usb/ulpi.h>
30 #include <linux/mtd/physmap.h>
31 #include <linux/delay.h>
32 #include <linux/regulator/machine.h>
33 #include <linux/regulator/fixed.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/time.h>
38 #include <asm/mach/map.h>
40 #include <asm/setup.h>
42 #include <mach/hardware.h>
43 #include <mach/common.h>
44 #include <mach/board-mx31lite.h>
45 #include <mach/iomux-mx3.h>
46 #include <mach/ulpi.h>
48 #include "devices-imx31.h"
51 * This file contains the module-specific initialization routines.
54 static unsigned int mx31lite_pins
[] = {
56 IOMUX_MODE(MX31_PIN_SFS6
, IOMUX_CONFIG_GPIO
),
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
,
67 static const struct mxc_nand_platform_data
68 mx31lite_nand_board_info __initconst
= {
73 static 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
,
79 static struct resource smsc911x_resources
[] = {
81 .start
= MX31_CS4_BASE_ADDR
,
82 .end
= MX31_CS4_BASE_ADDR
+ 0x100,
83 .flags
= IORESOURCE_MEM
,
85 /* irq number is run-time assigned */
86 .flags
= IORESOURCE_IRQ
,
90 static struct platform_device smsc911x_device
= {
93 .num_resources
= ARRAY_SIZE(smsc911x_resources
),
94 .resource
= smsc911x_resources
,
96 .platform_data
= &smsc911x_config
,
103 * The MC13783 is the only hard-wired SPI device on the module.
106 static int spi_internal_chipselect
[] = {
110 static const struct spi_imx_master spi1_pdata __initconst
= {
111 .chipselect
= spi_internal_chipselect
,
112 .num_chipselect
= ARRAY_SIZE(spi_internal_chipselect
),
115 static struct mc13xxx_platform_data mc13783_pdata __initdata
= {
116 .flags
= MC13XXX_USE_RTC
,
119 static struct spi_board_info mc13783_spi_dev __initdata
= {
120 .modalias
= "mc13783",
121 .max_speed_hz
= 1000000,
124 .platform_data
= &mc13783_pdata
,
125 /* irq number is run-time assigned */
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)
135 static int usbh2_init(struct platform_device
*pdev
)
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
,
146 mxc_iomux_setup_multiple_pins(pins
, ARRAY_SIZE(pins
), "USB H2");
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
);
161 mxc_iomux_set_gpr(MUX_PGP_UH2
, true);
164 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1
, IOMUX_CONFIG_GPIO
),
166 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1
), "USBH2 CS");
167 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1
), 0);
171 return mx31_initialize_usb_hw(pdev
->id
, MXC_EHCI_POWER_PINS_ENABLED
);
174 static struct mxc_usbh_platform_data usbh2_pdata __initdata
= {
176 .portsc
= MXC_EHCI_MODE_ULPI
| MXC_EHCI_UTMI_8BIT
,
183 static struct physmap_flash_data nor_flash_data
= {
187 static struct resource nor_flash_resource
= {
190 .flags
= IORESOURCE_MEM
,
193 static struct platform_device physmap_flash_device
= {
194 .name
= "physmap-flash",
197 .platform_data
= &nor_flash_data
,
199 .resource
= &nor_flash_resource
,
206 * This structure defines the MX31 memory map.
208 static struct map_desc mx31lite_io_desc
[] __initdata
= {
210 .virtual = MX31_CS4_BASE_ADDR_VIRT
,
211 .pfn
= __phys_to_pfn(MX31_CS4_BASE_ADDR
),
212 .length
= MX31_CS4_SIZE
,
218 * Set up static virtual mappings.
220 void __init
mx31lite_map_io(void)
223 iotable_init(mx31lite_io_desc
, ARRAY_SIZE(mx31lite_io_desc
));
226 static int mx31lite_baseboard
;
227 core_param(mx31lite_baseboard
, mx31lite_baseboard
, int, 0444);
229 static struct regulator_consumer_supply dummy_supplies
[] = {
230 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
231 REGULATOR_SUPPLY("vddvario", "smsc911x"),
234 static void __init
mx31lite_init(void)
240 switch (mx31lite_baseboard
) {
241 case MX31LITE_NOBOARD
:
247 printk(KERN_ERR
"Illegal mx31lite_baseboard type %d\n",
251 mxc_iomux_setup_multiple_pins(mx31lite_pins
, ARRAY_SIZE(mx31lite_pins
),
254 /* NOR and NAND flash */
255 platform_device_register(&physmap_flash_device
);
256 imx31_add_mxc_nand(&mx31lite_nand_board_info
);
258 imx31_add_spi_imx1(&spi1_pdata
);
259 mc13783_spi_dev
.irq
= gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3
));
260 spi_register_board_info(&mc13783_spi_dev
, 1);
263 usbh2_pdata
.otg
= imx_otg_ulpi_create(ULPI_OTG_DRVVBUS
|
264 ULPI_OTG_DRVVBUS_EXT
);
266 imx31_add_mxc_ehci_hs(2, &usbh2_pdata
);
268 regulator_register_fixed(0, dummy_supplies
, ARRAY_SIZE(dummy_supplies
));
270 /* SMSC9117 IRQ pin */
271 ret
= gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6
), "sms9117-irq");
273 pr_warning("could not get LAN irq gpio\n");
275 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6
));
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
));
280 platform_device_register(&smsc911x_device
);
284 static void __init
mx31lite_timer_init(void)
286 mx31_clocks_init(26000000);
289 static struct sys_timer mx31lite_timer
= {
290 .init
= mx31lite_timer_init
,
293 MACHINE_START(MX31LITE
, "LogicPD i.MX31 SOM")
294 /* Maintainer: Freescale Semiconductor, Inc. */
295 .atag_offset
= 0x100,
296 .map_io
= mx31lite_map_io
,
297 .init_early
= imx31_init_early
,
298 .init_irq
= mx31_init_irq
,
299 .handle_irq
= imx31_handle_irq
,
300 .timer
= &mx31lite_timer
,
301 .init_machine
= mx31lite_init
,
302 .restart
= mxc_restart
,