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c942fddf87
Based on 3 normalized pattern(s): 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
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*/
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include "board-mx31moboard.h"
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#include "common.h"
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#include "devices-imx31.h"
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#include "ehci.h"
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#include "hardware.h"
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#include "iomux-mx3.h"
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#include "ulpi.h"
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static unsigned int smartbot_pins[] = {
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/* UART1 */
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MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
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MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
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/* ENABLES */
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MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
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MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
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};
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static const struct fsl_usb2_platform_data usb_pdata __initconst = {
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.operating_mode = FSL_USB2_DR_DEVICE,
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.phy_mode = FSL_USB2_PHY_ULPI,
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};
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#if defined(CONFIG_USB_ULPI)
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static int smartbot_otg_init(struct platform_device *pdev)
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{
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return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
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}
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static struct mxc_usbh_platform_data otg_host_pdata __initdata = {
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.init = smartbot_otg_init,
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.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
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};
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static int __init smartbot_otg_host_init(void)
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{
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struct platform_device *pdev;
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otg_host_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
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ULPI_OTG_DRVVBUS_EXT);
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if (!otg_host_pdata.otg)
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return -ENODEV;
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pdev = imx31_add_mxc_ehci_otg(&otg_host_pdata);
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return PTR_ERR_OR_ZERO(pdev);
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}
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#else
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static inline int smartbot_otg_host_init(void) { return 0; }
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#endif
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#define POWER_EN IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
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#define DSPIC_RST_B IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
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#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
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#define TRSLAT_SRC_CHOICE IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
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static void smartbot_resets_init(void)
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{
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if (!gpio_request(POWER_EN, "power-enable")) {
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gpio_direction_output(POWER_EN, 0);
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gpio_export(POWER_EN, false);
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}
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if (!gpio_request(DSPIC_RST_B, "dspic-rst")) {
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gpio_direction_output(DSPIC_RST_B, 0);
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gpio_export(DSPIC_RST_B, false);
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}
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if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
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gpio_direction_output(TRSLAT_RST_B, 0);
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gpio_export(TRSLAT_RST_B, false);
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}
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if (!gpio_request(TRSLAT_SRC_CHOICE, "translator-src-choice")) {
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gpio_direction_output(TRSLAT_SRC_CHOICE, 0);
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gpio_export(TRSLAT_SRC_CHOICE, false);
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}
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}
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/*
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* system init for baseboard usage. Will be called by mx31moboard init.
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*/
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void __init mx31moboard_smartbot_init(int board)
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{
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printk(KERN_INFO "Initializing mx31smartbot peripherals\n");
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mxc_iomux_setup_multiple_pins(smartbot_pins, ARRAY_SIZE(smartbot_pins),
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"smartbot");
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imx31_add_imx_uart1(&uart_pdata);
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switch (board) {
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case MX31SMARTBOT:
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imx31_add_fsl_usb2_udc(&usb_pdata);
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break;
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case MX31EYEBOT:
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smartbot_otg_host_init();
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break;
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default:
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printk(KERN_WARNING "Unknown board %d, USB OTG not initialized",
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board);
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}
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smartbot_resets_init();
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}
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