1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2000 Deep Blue Solutions Ltd
4 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
5 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
6 * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
9 #include <linux/types.h>
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/memory.h>
13 #include <linux/platform_device.h>
14 #include <linux/gpio.h>
15 #include <linux/moduleparam.h>
16 #include <linux/smsc911x.h>
17 #include <linux/mfd/mc13783.h>
18 #include <linux/spi/spi.h>
19 #include <linux/usb/otg.h>
20 #include <linux/usb/ulpi.h>
21 #include <linux/mtd/physmap.h>
22 #include <linux/delay.h>
23 #include <linux/regulator/machine.h>
24 #include <linux/regulator/fixed.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/time.h>
29 #include <asm/mach/map.h>
31 #include <asm/setup.h>
33 #include "board-mx31lite.h"
35 #include "devices-imx31.h"
38 #include "iomux-mx3.h"
42 * This file contains the module-specific initialization routines.
45 static unsigned int mx31lite_pins[] = {
52 MX31_PIN_CSPI1_SCLK__SCLK,
53 MX31_PIN_CSPI1_MOSI__MOSI,
54 MX31_PIN_CSPI1_MISO__MISO,
55 MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
56 MX31_PIN_CSPI1_SS0__SS0,
57 MX31_PIN_CSPI1_SS1__SS1,
58 MX31_PIN_CSPI1_SS2__SS2,
60 IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
62 MX31_PIN_CSPI2_SCLK__SCLK,
63 MX31_PIN_CSPI2_MOSI__MOSI,
64 MX31_PIN_CSPI2_MISO__MISO,
65 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
66 MX31_PIN_CSPI2_SS0__SS0,
67 MX31_PIN_CSPI2_SS1__SS1,
68 MX31_PIN_CSPI2_SS2__SS2,
72 static const struct imxuart_platform_data uart_pdata __initconst = {
73 .flags = IMXUART_HAVE_RTSCTS,
76 static const struct mxc_nand_platform_data
77 mx31lite_nand_board_info __initconst = {
82 static struct smsc911x_platform_config smsc911x_config = {
83 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
84 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
85 .flags = SMSC911X_USE_16BIT,
88 static struct resource smsc911x_resources[] = {
90 .start = MX31_CS4_BASE_ADDR,
91 .end = MX31_CS4_BASE_ADDR + 0x100,
92 .flags = IORESOURCE_MEM,
94 /* irq number is run-time assigned */
95 .flags = IORESOURCE_IRQ,
99 static struct platform_device smsc911x_device = {
102 .num_resources = ARRAY_SIZE(smsc911x_resources),
103 .resource = smsc911x_resources,
105 .platform_data = &smsc911x_config,
109 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
110 .flags = MC13XXX_USE_RTC,
113 static struct spi_board_info mc13783_spi_dev __initdata = {
114 .modalias = "mc13783",
115 .max_speed_hz = 1000000,
118 .platform_data = &mc13783_pdata,
119 /* irq number is run-time assigned */
126 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
127 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
129 static int usbh2_init(struct platform_device *pdev)
132 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
133 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
134 MX31_PIN_USBH2_CLK__USBH2_CLK,
135 MX31_PIN_USBH2_DIR__USBH2_DIR,
136 MX31_PIN_USBH2_NXT__USBH2_NXT,
137 MX31_PIN_USBH2_STP__USBH2_STP,
140 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
142 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
143 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
144 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
145 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
146 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
147 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
148 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
149 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
150 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
151 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
152 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
153 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
155 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
158 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
160 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
161 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
165 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
168 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
170 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
177 static struct physmap_flash_data nor_flash_data = {
181 static struct resource nor_flash_resource = {
184 .flags = IORESOURCE_MEM,
187 static struct platform_device physmap_flash_device = {
188 .name = "physmap-flash",
191 .platform_data = &nor_flash_data,
193 .resource = &nor_flash_resource,
198 * This structure defines the MX31 memory map.
200 static struct map_desc mx31lite_io_desc[] __initdata = {
202 .virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
203 .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
204 .length = MX31_CS4_SIZE,
210 * Set up static virtual mappings.
212 static void __init mx31lite_map_io(void)
215 iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
218 static int mx31lite_baseboard;
219 core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
221 static struct regulator_consumer_supply dummy_supplies[] = {
222 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
223 REGULATOR_SUPPLY("vddvario", "smsc911x"),
226 static void __init mx31lite_init(void)
230 mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
233 imx31_add_imx_uart0(&uart_pdata);
234 imx31_add_spi_imx0(NULL);
236 /* NOR and NAND flash */
237 platform_device_register(&physmap_flash_device);
238 imx31_add_mxc_nand(&mx31lite_nand_board_info);
240 imx31_add_spi_imx1(NULL);
242 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
245 static void __init mx31lite_late(void)
249 if (mx31lite_baseboard == MX31LITE_DB)
252 mc13783_spi_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
253 spi_register_board_info(&mc13783_spi_dev, 1);
256 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
257 ULPI_OTG_DRVVBUS_EXT);
259 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
261 /* SMSC9117 IRQ pin */
262 ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
264 pr_warn("could not get LAN irq gpio\n");
266 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
267 smsc911x_resources[1].start =
268 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
269 smsc911x_resources[1].end =
270 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
271 platform_device_register(&smsc911x_device);
275 static void __init mx31lite_timer_init(void)
277 mx31_clocks_init(26000000);
280 MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
281 /* Maintainer: Freescale Semiconductor, Inc. */
282 .atag_offset = 0x100,
283 .map_io = mx31lite_map_io,
284 .init_early = imx31_init_early,
285 .init_irq = mx31_init_irq,
286 .init_time = mx31lite_timer_init,
287 .init_machine = mx31lite_init,
288 .init_late = mx31lite_late,
289 .restart = mxc_restart,