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.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/kernel.h>
25 #include <linux/memory.h>
26 #include <linux/platform_device.h>
27 #include <linux/gpio.h>
28 #include <linux/smsc911x.h>
29 #include <linux/mfd/mc13783.h>
30 #include <linux/spi/spi.h>
31 #include <linux/usb/otg.h>
32 #include <linux/usb/ulpi.h>
33 #include <linux/mtd/physmap.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/imx-uart.h>
46 #include <mach/iomux-mx3.h>
47 #include <mach/irqs.h>
48 #include <mach/mxc_nand.h>
50 #include <mach/mxc_ehci.h>
51 #include <mach/ulpi.h>
56 * This file contains the module-specific initialization routines.
59 static unsigned int mx31lite_pins
[] = {
61 IOMUX_MODE(MX31_PIN_SFS6
, IOMUX_CONFIG_GPIO
),
63 MX31_PIN_CSPI2_SCLK__SCLK
,
64 MX31_PIN_CSPI2_MOSI__MOSI
,
65 MX31_PIN_CSPI2_MISO__MISO
,
66 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY
,
67 MX31_PIN_CSPI2_SS0__SS0
,
68 MX31_PIN_CSPI2_SS1__SS1
,
69 MX31_PIN_CSPI2_SS2__SS2
,
72 static struct mxc_nand_platform_data mx31lite_nand_board_info
= {
77 static struct smsc911x_platform_config smsc911x_config
= {
78 .irq_polarity
= SMSC911X_IRQ_POLARITY_ACTIVE_LOW
,
79 .irq_type
= SMSC911X_IRQ_TYPE_PUSH_PULL
,
80 .flags
= SMSC911X_USE_16BIT
,
83 static struct resource smsc911x_resources
[] = {
85 .start
= MX31_CS4_BASE_ADDR
,
86 .end
= MX31_CS4_BASE_ADDR
+ 0x100,
87 .flags
= IORESOURCE_MEM
,
89 .start
= IOMUX_TO_IRQ(MX31_PIN_SFS6
),
90 .end
= IOMUX_TO_IRQ(MX31_PIN_SFS6
),
91 .flags
= IORESOURCE_IRQ
,
95 static struct platform_device smsc911x_device
= {
98 .num_resources
= ARRAY_SIZE(smsc911x_resources
),
99 .resource
= smsc911x_resources
,
101 .platform_data
= &smsc911x_config
,
108 * The MC13783 is the only hard-wired SPI device on the module.
111 static int spi_internal_chipselect
[] = {
115 static struct spi_imx_master spi1_pdata
= {
116 .chipselect
= spi_internal_chipselect
,
117 .num_chipselect
= ARRAY_SIZE(spi_internal_chipselect
),
120 static struct mc13783_platform_data mc13783_pdata __initdata
= {
121 .flags
= MC13783_USE_RTC
|
122 MC13783_USE_REGULATOR
,
125 static struct spi_board_info mc13783_spi_dev __initdata
= {
126 .modalias
= "mc13783",
127 .max_speed_hz
= 1000000,
130 .platform_data
= &mc13783_pdata
,
131 .irq
= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3
),
138 #if defined(CONFIG_USB_ULPI)
139 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
140 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
142 static int usbh2_init(struct platform_device
*pdev
)
145 MX31_PIN_USBH2_DATA0__USBH2_DATA0
,
146 MX31_PIN_USBH2_DATA1__USBH2_DATA1
,
147 MX31_PIN_USBH2_CLK__USBH2_CLK
,
148 MX31_PIN_USBH2_DIR__USBH2_DIR
,
149 MX31_PIN_USBH2_NXT__USBH2_NXT
,
150 MX31_PIN_USBH2_STP__USBH2_STP
,
153 mxc_iomux_setup_multiple_pins(pins
, ARRAY_SIZE(pins
), "USB H2");
155 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK
, USB_PAD_CFG
);
156 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR
, USB_PAD_CFG
);
157 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT
, USB_PAD_CFG
);
158 mxc_iomux_set_pad(MX31_PIN_USBH2_STP
, USB_PAD_CFG
);
159 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0
, USB_PAD_CFG
);
160 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1
, USB_PAD_CFG
);
161 mxc_iomux_set_pad(MX31_PIN_SRXD6
, USB_PAD_CFG
);
162 mxc_iomux_set_pad(MX31_PIN_STXD6
, USB_PAD_CFG
);
163 mxc_iomux_set_pad(MX31_PIN_SFS3
, USB_PAD_CFG
);
164 mxc_iomux_set_pad(MX31_PIN_SCK3
, USB_PAD_CFG
);
165 mxc_iomux_set_pad(MX31_PIN_SRXD3
, USB_PAD_CFG
);
166 mxc_iomux_set_pad(MX31_PIN_STXD3
, USB_PAD_CFG
);
168 mxc_iomux_set_gpr(MUX_PGP_UH2
, true);
171 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1
, IOMUX_CONFIG_GPIO
),
173 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1
), "USBH2 CS");
174 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1
), 0);
179 static struct mxc_usbh_platform_data usbh2_pdata
= {
181 .portsc
= MXC_EHCI_MODE_ULPI
| MXC_EHCI_UTMI_8BIT
,
182 .flags
= MXC_EHCI_POWER_PINS_ENABLED
,
190 static struct physmap_flash_data nor_flash_data
= {
194 static struct resource nor_flash_resource
= {
197 .flags
= IORESOURCE_MEM
,
200 static struct platform_device physmap_flash_device
= {
201 .name
= "physmap-flash",
204 .platform_data
= &nor_flash_data
,
206 .resource
= &nor_flash_resource
,
213 * This structure defines the MX31 memory map.
215 static struct map_desc mx31lite_io_desc
[] __initdata
= {
217 .virtual = MX31_CS4_BASE_ADDR_VIRT
,
218 .pfn
= __phys_to_pfn(MX31_CS4_BASE_ADDR
),
219 .length
= MX31_CS4_SIZE
,
225 * Set up static virtual mappings.
227 void __init
mx31lite_map_io(void)
230 iotable_init(mx31lite_io_desc
, ARRAY_SIZE(mx31lite_io_desc
));
233 static int mx31lite_baseboard
;
234 core_param(mx31lite_baseboard
, mx31lite_baseboard
, int, 0444);
236 static void __init
mxc_board_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 mxc_register_device(&mxc_nand_device
, &mx31lite_nand_board_info
);
258 mxc_register_device(&mxc_spi_device1
, &spi1_pdata
);
259 spi_register_board_info(&mc13783_spi_dev
, 1);
261 #if defined(CONFIG_USB_ULPI)
263 usbh2_pdata
.otg
= otg_ulpi_create(&mxc_ulpi_access_ops
,
264 USB_OTG_DRV_VBUS
| USB_OTG_DRV_VBUS_EXT
);
266 mxc_register_device(&mxc_usbh2
, &usbh2_pdata
);
269 /* SMSC9117 IRQ pin */
270 ret
= gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6
), "sms9117-irq");
272 pr_warning("could not get LAN irq gpio\n");
274 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6
));
275 platform_device_register(&smsc911x_device
);
279 static void __init
mx31lite_timer_init(void)
281 mx31_clocks_init(26000000);
284 struct sys_timer mx31lite_timer
= {
285 .init
= mx31lite_timer_init
,
288 MACHINE_START(MX31LITE
, "LogicPD i.MX31 SOM")
289 /* Maintainer: Freescale Semiconductor, Inc. */
290 .phys_io
= MX31_AIPS1_BASE_ADDR
,
291 .io_pg_offst
= (MX31_AIPS1_BASE_ADDR_VIRT
>> 18) & 0xfffc,
292 .boot_params
= MX3x_PHYS_OFFSET
+ 0x100,
293 .map_io
= mx31lite_map_io
,
294 .init_irq
= mx31_init_irq
,
295 .init_machine
= mxc_board_init
,
296 .timer
= &mx31lite_timer
,