/* * Copyright (C) 2000 Deep Blue Solutions Ltd * Copyright (C) 2002 Shane Nay (shane@minirl.com) * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <linux/types.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/memory.h> #include <linux/platform_device.h> #include <linux/gpio.h> #include <linux/smsc911x.h> #include <linux/mfd/mc13783.h> #include <linux/spi/spi.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> #include <linux/mtd/physmap.h> #include <linux/delay.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> #include <asm/mach/map.h> #include <asm/page.h> #include <asm/setup.h> #include <mach/hardware.h> #include <mach/common.h> #include <mach/board-mx31lite.h> #include <mach/iomux-mx3.h> #include <mach/irqs.h> #include <mach/ulpi.h> #include "devices-imx31.h" /* * This file contains the module-specific initialization routines. */ static unsigned int mx31lite_pins[] = { /* LAN9117 IRQ pin */ IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO), /* SPI 1 */ MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS1__SS1, MX31_PIN_CSPI2_SS2__SS2, }; static const struct mxc_nand_platform_data mx31lite_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, }; static struct smsc911x_platform_config smsc911x_config = { .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, .flags = SMSC911X_USE_16BIT, }; static struct resource smsc911x_resources[] = { { .start = MX31_CS4_BASE_ADDR, .end = MX31_CS4_BASE_ADDR + 0x100, .flags = IORESOURCE_MEM, }, { .start = IOMUX_TO_IRQ(MX31_PIN_SFS6), .end = IOMUX_TO_IRQ(MX31_PIN_SFS6), .flags = IORESOURCE_IRQ, }, }; static struct platform_device smsc911x_device = { .name = "smsc911x", .id = -1, .num_resources = ARRAY_SIZE(smsc911x_resources), .resource = smsc911x_resources, .dev = { .platform_data = &smsc911x_config, }, }; /* * SPI * * The MC13783 is the only hard-wired SPI device on the module. */ static int spi_internal_chipselect[] = { MXC_SPI_CS(0), }; static const struct spi_imx_master spi1_pdata __initconst = { .chipselect = spi_internal_chipselect, .num_chipselect = ARRAY_SIZE(spi_internal_chipselect), }; static struct mc13xxx_platform_data mc13783_pdata __initdata = { .flags = MC13XXX_USE_RTC | MC13XXX_USE_REGULATOR, }; static struct spi_board_info mc13783_spi_dev __initdata = { .modalias = "mc13783", .max_speed_hz = 1000000, .bus_num = 1, .chip_select = 0, .platform_data = &mc13783_pdata, .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3), }; /* * USB */ #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) static int usbh2_init(struct platform_device *pdev) { int pins[] = { MX31_PIN_USBH2_DATA0__USBH2_DATA0, MX31_PIN_USBH2_DATA1__USBH2_DATA1, MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR, MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP, }; mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2"); mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG); mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG); mxc_iomux_set_gpr(MUX_PGP_UH2, true); /* chip select */ mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO), "USBH2_CS"); gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS"); gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0); mdelay(10); return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED); } static struct mxc_usbh_platform_data usbh2_pdata __initdata = { .init = usbh2_init, .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, }; /* * NOR flash */ static struct physmap_flash_data nor_flash_data = { .width = 2, }; static struct resource nor_flash_resource = { .start = 0xa0000000, .end = 0xa1ffffff, .flags = IORESOURCE_MEM, }; static struct platform_device physmap_flash_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &nor_flash_data, }, .resource = &nor_flash_resource, .num_resources = 1, }; /* * This structure defines the MX31 memory map. */ static struct map_desc mx31lite_io_desc[] __initdata = { { .virtual = MX31_CS4_BASE_ADDR_VIRT, .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR), .length = MX31_CS4_SIZE, .type = MT_DEVICE } }; /* * Set up static virtual mappings. */ void __init mx31lite_map_io(void) { mx31_map_io(); iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc)); } static int mx31lite_baseboard; core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444); static void __init mx31lite_init(void) { int ret; switch (mx31lite_baseboard) { case MX31LITE_NOBOARD: break; case MX31LITE_DB: mx31lite_db_init(); break; default: printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n", mx31lite_baseboard); } mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins), "mx31lite"); /* NOR and NAND flash */ platform_device_register(&physmap_flash_device); imx31_add_mxc_nand(&mx31lite_nand_board_info); imx31_add_spi_imx1(&spi1_pdata); spi_register_board_info(&mc13783_spi_dev, 1); /* USB */ usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); if (usbh2_pdata.otg) imx31_add_mxc_ehci_hs(2, &usbh2_pdata); /* SMSC9117 IRQ pin */ ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq"); if (ret) pr_warning("could not get LAN irq gpio\n"); else { gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6)); platform_device_register(&smsc911x_device); } } static void __init mx31lite_timer_init(void) { mx31_clocks_init(26000000); } struct sys_timer mx31lite_timer = { .init = mx31lite_timer_init, }; MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM") /* Maintainer: Freescale Semiconductor, Inc. */ .boot_params = MX3x_PHYS_OFFSET + 0x100, .map_io = mx31lite_map_io, .init_early = imx31_init_early, .init_irq = mx31_init_irq, .timer = &mx31lite_timer, .init_machine = mx31lite_init, MACHINE_END