--- /dev/null
+/*
+ * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
+ *
+ * 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/gpio.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <linux/usb/otg.h>
+
+#include "common.h"
+#include "devices-imx31.h"
+#include "ehci.h"
+#include "hardware.h"
+#include "iomux-mx3.h"
+#include "ulpi.h"
+
+static unsigned int devboard_pins[] = {
+ /* UART1 */
+ MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
+ MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
+ /* SDHC2 */
+ MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
+ MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
+ MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
+ MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
+ /* USB H1 */
+ MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
+ MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
+ MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
+ MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
+ MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
+ /* SEL */
+ MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
+ MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
+};
+
+static const struct imxuart_platform_data uart_pdata __initconst = {
+ .flags = IMXUART_HAVE_RTSCTS,
+};
+
+#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
+#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
+
+static int devboard_sdhc2_get_ro(struct device *dev)
+{
+ return !gpio_get_value(SDHC2_WP);
+}
+
+static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
+ void *data)
+{
+ int ret;
+
+ ret = gpio_request(SDHC2_CD, "sdhc-detect");
+ if (ret)
+ return ret;
+
+ gpio_direction_input(SDHC2_CD);
+
+ ret = gpio_request(SDHC2_WP, "sdhc-wp");
+ if (ret)
+ goto err_gpio_free;
+ gpio_direction_input(SDHC2_WP);
+
+ ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "sdhc2-card-detect", data);
+ if (ret)
+ goto err_gpio_free_2;
+
+ return 0;
+
+err_gpio_free_2:
+ gpio_free(SDHC2_WP);
+err_gpio_free:
+ gpio_free(SDHC2_CD);
+
+ return ret;
+}
+
+static void devboard_sdhc2_exit(struct device *dev, void *data)
+{
+ free_irq(gpio_to_irq(SDHC2_CD), data);
+ gpio_free(SDHC2_WP);
+ gpio_free(SDHC2_CD);
+}
+
+static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
+ .get_ro = devboard_sdhc2_get_ro,
+ .init = devboard_sdhc2_init,
+ .exit = devboard_sdhc2_exit,
+};
+
+#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
+#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
+#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
+#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
+
+static void devboard_init_sel_gpios(void)
+{
+ if (!gpio_request(SEL0, "sel0")) {
+ gpio_direction_input(SEL0);
+ gpio_export(SEL0, true);
+ }
+
+ if (!gpio_request(SEL1, "sel1")) {
+ gpio_direction_input(SEL1);
+ gpio_export(SEL1, true);
+ }
+
+ if (!gpio_request(SEL2, "sel2")) {
+ gpio_direction_input(SEL2);
+ gpio_export(SEL2, true);
+ }
+
+ if (!gpio_request(SEL3, "sel3")) {
+ gpio_direction_input(SEL3);
+ gpio_export(SEL3, true);
+ }
+}
+#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 devboard_usbh1_hw_init(struct platform_device *pdev)
+{
+ mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
+
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
+
+ mdelay(10);
+
+ return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
+ MXC_EHCI_INTERFACE_SINGLE_UNI);
+}
+
+#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
+#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
+
+static int devboard_isp1105_init(struct usb_phy *otg)
+{
+ int ret = gpio_request(USBH1_MODE, "usbh1-mode");
+ if (ret)
+ return ret;
+ /* single ended */
+ gpio_direction_output(USBH1_MODE, 0);
+
+ ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
+ if (ret) {
+ gpio_free(USBH1_MODE);
+ return ret;
+ }
+ gpio_direction_output(USBH1_VBUSEN_B, 1);
+
+ return 0;
+}
+
+
+static int devboard_isp1105_set_vbus(struct usb_otg *otg, bool on)
+{
+ if (on)
+ gpio_set_value(USBH1_VBUSEN_B, 0);
+ else
+ gpio_set_value(USBH1_VBUSEN_B, 1);
+
+ return 0;
+}
+
+static struct mxc_usbh_platform_data usbh1_pdata __initdata = {
+ .init = devboard_usbh1_hw_init,
+ .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
+};
+
+static int __init devboard_usbh1_init(void)
+{
+ struct usb_phy *phy;
+ struct platform_device *pdev;
+
+ phy = kzalloc(sizeof(*phy), GFP_KERNEL);
+ if (!phy)
+ return -ENOMEM;
+
+ phy->otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
+ if (!phy->otg) {
+ kfree(phy);
+ return -ENOMEM;
+ }
+
+ phy->label = "ISP1105";
+ phy->init = devboard_isp1105_init;
+ phy->otg->set_vbus = devboard_isp1105_set_vbus;
+
+ usbh1_pdata.otg = phy;
+
+ pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
+
+ return PTR_ERR_OR_ZERO(pdev);
+}
+
+
+static const struct fsl_usb2_platform_data usb_pdata __initconst = {
+ .operating_mode = FSL_USB2_DR_DEVICE,
+ .phy_mode = FSL_USB2_PHY_ULPI,
+};
+
+/*
+ * system init for baseboard usage. Will be called by mx31moboard init.
+ */
+void __init mx31moboard_devboard_init(void)
+{
+ printk(KERN_INFO "Initializing mx31devboard peripherals\n");
+
+ mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
+ "devboard");
+
+ imx31_add_imx_uart1(&uart_pdata);
+
+ imx31_add_mxc_mmc(1, &sdhc2_pdata);
+
+ devboard_init_sel_gpios();
+
+ imx31_add_fsl_usb2_udc(&usb_pdata);
+
+ devboard_usbh1_init();
+}
Code Review / kvmfornfv.git / blobdiff