mirror of https://gitee.com/openkylin/linux.git
ARM: MX3: add USB functions for mx31litekit
Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -28,6 +28,8 @@
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#include <linux/smsc911x.h>
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#include <linux/mfd/mc13783.h>
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#include <linux/spi/spi.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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@ -44,6 +46,8 @@
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#include <mach/irqs.h>
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#include <mach/mxc_nand.h>
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#include <mach/spi.h>
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#include <mach/mxc_ehci.h>
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#include <mach/ulpi.h>
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#include "devices.h"
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@ -126,6 +130,56 @@ static struct spi_board_info mc13783_spi_dev __initdata = {
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.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
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};
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/*
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* USB
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*/
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#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
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PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
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static int usbh2_init(struct platform_device *pdev)
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{
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int pins[] = {
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MX31_PIN_USBH2_DATA0__USBH2_DATA0,
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MX31_PIN_USBH2_DATA1__USBH2_DATA1,
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MX31_PIN_USBH2_CLK__USBH2_CLK,
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MX31_PIN_USBH2_DIR__USBH2_DIR,
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MX31_PIN_USBH2_NXT__USBH2_NXT,
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MX31_PIN_USBH2_STP__USBH2_STP,
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};
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mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
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mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
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mxc_iomux_set_gpr(MUX_PGP_UH2, true);
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/* chip select */
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mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
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"USBH2_CS");
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gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
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gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
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return 0;
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}
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static struct mxc_usbh_platform_data usbh2_pdata = {
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.init = usbh2_init,
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.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
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.flags = MXC_EHCI_POWER_PINS_ENABLED,
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};
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/*
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* This structure defines the MX31 memory map.
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*/
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@ -177,6 +231,12 @@ static void __init mxc_board_init(void)
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mxc_register_device(&mxc_spi_device1, &spi1_pdata);
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spi_register_board_info(&mc13783_spi_dev, 1);
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/* USB */
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usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
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USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
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mxc_register_device(&mxc_usbh2, &usbh2_pdata);
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/* SMSC9117 IRQ pin */
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ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
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if (ret)
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