/* * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright (C) 2009 Marc Kleine-Budde, Pengutronix * * Author: Fabio Estevam <fabio.estevam@freescale.com> * * 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. */ /* * This machine is known as: * - i.MX35 3-Stack Development System * - i.MX35 Platform Development Kit (i.MX35 PDK) */ #include <linux/types.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/memory.h> #include <linux/gpio.h> #include <linux/usb/otg.h> #include <linux/mtd/physmap.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> #include <asm/mach/map.h> #include <mach/hardware.h> #include <mach/common.h> #include <mach/iomux-mx35.h> #include <mach/irqs.h> #include <mach/3ds_debugboard.h> #include "devices-imx35.h" #define EXPIO_PARENT_INT gpio_to_irq(IMX_GPIO_NR(1, 1)) static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static struct physmap_flash_data mx35pdk_flash_data = { .width = 2, }; static struct resource mx35pdk_flash_resource = { .start = MX35_CS0_BASE_ADDR, .end = MX35_CS0_BASE_ADDR + SZ_64M - 1, .flags = IORESOURCE_MEM, }; static struct platform_device mx35pdk_flash = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &mx35pdk_flash_data, }, .resource = &mx35pdk_flash_resource, .num_resources = 1, }; static const struct mxc_nand_platform_data mx35pdk_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, .flash_bbt = 1, }; static struct platform_device *devices[] __initdata = { &mx35pdk_flash, }; static iomux_v3_cfg_t mx35pdk_pads[] = { /* UART1 */ MX35_PAD_CTS1__UART1_CTS, MX35_PAD_RTS1__UART1_RTS, MX35_PAD_TXD1__UART1_TXD_MUX, MX35_PAD_RXD1__UART1_RXD_MUX, /* FEC */ MX35_PAD_FEC_TX_CLK__FEC_TX_CLK, MX35_PAD_FEC_RX_CLK__FEC_RX_CLK, MX35_PAD_FEC_RX_DV__FEC_RX_DV, MX35_PAD_FEC_COL__FEC_COL, MX35_PAD_FEC_RDATA0__FEC_RDATA_0, MX35_PAD_FEC_TDATA0__FEC_TDATA_0, MX35_PAD_FEC_TX_EN__FEC_TX_EN, MX35_PAD_FEC_MDC__FEC_MDC, MX35_PAD_FEC_MDIO__FEC_MDIO, MX35_PAD_FEC_TX_ERR__FEC_TX_ERR, MX35_PAD_FEC_RX_ERR__FEC_RX_ERR, MX35_PAD_FEC_CRS__FEC_CRS, MX35_PAD_FEC_RDATA1__FEC_RDATA_1, MX35_PAD_FEC_TDATA1__FEC_TDATA_1, MX35_PAD_FEC_RDATA2__FEC_RDATA_2, MX35_PAD_FEC_TDATA2__FEC_TDATA_2, MX35_PAD_FEC_RDATA3__FEC_RDATA_3, MX35_PAD_FEC_TDATA3__FEC_TDATA_3, /* USBOTG */ MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR, MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC, /* USBH1 */ MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR, MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC, /* SDCARD */ MX35_PAD_SD1_CMD__ESDHC1_CMD, MX35_PAD_SD1_CLK__ESDHC1_CLK, MX35_PAD_SD1_DATA0__ESDHC1_DAT0, MX35_PAD_SD1_DATA1__ESDHC1_DAT1, MX35_PAD_SD1_DATA2__ESDHC1_DAT2, MX35_PAD_SD1_DATA3__ESDHC1_DAT3, /* I2C1 */ MX35_PAD_I2C1_CLK__I2C1_SCL, MX35_PAD_I2C1_DAT__I2C1_SDA, }; static int mx35_3ds_otg_init(struct platform_device *pdev) { return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY); } /* OTG config */ static const struct fsl_usb2_platform_data usb_otg_pdata __initconst = { .operating_mode = FSL_USB2_DR_DEVICE, .phy_mode = FSL_USB2_PHY_UTMI_WIDE, .workaround = FLS_USB2_WORKAROUND_ENGCM09152, /* * ENGCM09152 also requires a hardware change. * Please check the MX35 Chip Errata document for details. */ }; static struct mxc_usbh_platform_data otg_pdata __initdata = { .init = mx35_3ds_otg_init, .portsc = MXC_EHCI_MODE_UTMI, }; static int mx35_3ds_usbh_init(struct platform_device *pdev) { return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY); } /* USB HOST config */ static const struct mxc_usbh_platform_data usb_host_pdata __initconst = { .init = mx35_3ds_usbh_init, .portsc = MXC_EHCI_MODE_SERIAL, }; static int otg_mode_host; static int __init mx35_3ds_otg_mode(char *options) { if (!strcmp(options, "host")) otg_mode_host = 1; else if (!strcmp(options, "device")) otg_mode_host = 0; else pr_info("otg_mode neither \"host\" nor \"device\". " "Defaulting to device\n"); return 0; } __setup("otg_mode=", mx35_3ds_otg_mode); static const struct imxi2c_platform_data mx35_3ds_i2c0_data __initconst = { .bitrate = 100000, }; /* * Board specific initialization. */ static void __init mx35_3ds_init(void) { imx35_soc_init(); mxc_iomux_v3_setup_multiple_pads(mx35pdk_pads, ARRAY_SIZE(mx35pdk_pads)); imx35_add_fec(NULL); imx35_add_imx2_wdt(NULL); platform_add_devices(devices, ARRAY_SIZE(devices)); imx35_add_imx_uart0(&uart_pdata); if (otg_mode_host) imx35_add_mxc_ehci_otg(&otg_pdata); imx35_add_mxc_ehci_hs(&usb_host_pdata); if (!otg_mode_host) imx35_add_fsl_usb2_udc(&usb_otg_pdata); imx35_add_mxc_nand(&mx35pdk_nand_board_info); imx35_add_sdhci_esdhc_imx(0, NULL); if (mxc_expio_init(MX35_CS5_BASE_ADDR, EXPIO_PARENT_INT)) pr_warn("Init of the debugboard failed, all " "devices on the debugboard are unusable.\n"); imx35_add_imx_i2c0(&mx35_3ds_i2c0_data); } static void __init mx35pdk_timer_init(void) { mx35_clocks_init(); } struct sys_timer mx35pdk_timer = { .init = mx35pdk_timer_init, }; MACHINE_START(MX35_3DS, "Freescale MX35PDK") /* Maintainer: Freescale Semiconductor, Inc */ .atag_offset = 0x100, .map_io = mx35_map_io, .init_early = imx35_init_early, .init_irq = mx35_init_irq, .handle_irq = imx35_handle_irq, .timer = &mx35pdk_timer, .init_machine = mx35_3ds_init, MACHINE_END