ARM: add USB device support to pcm037 (eb05bbeb) · Commits · 戴 / test

arch/arm/mach-mx3/devices.c

+27 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		* Boston, MA 02110-1301, USA.
		*/

		#include <linux/dma-mapping.h>
		#include <linux/module.h>
		#include <linux/platform_device.h>
		#include <linux/serial.h>
		@@ -349,6 +350,32 @@ struct platform_device mx3_fb = {
		},
		};

		static struct resource otg_resources[] = {
		{
		.start = OTG_BASE_ADDR,
		.end = OTG_BASE_ADDR + 0x1ff,
		.flags = IORESOURCE_MEM,
		}, {
		.start = MXC_INT_USB3,
		.end = MXC_INT_USB3,
		.flags = IORESOURCE_IRQ,
		},
		};

		static u64 otg_dmamask = DMA_BIT_MASK(32);

		/* OTG gadget device */
		struct platform_device mxc_otg_udc_device = {
		.name = "fsl-usb2-udc",
		.id = -1,
		.dev = {
		.dma_mask = &otg_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
		},
		.resource = otg_resources,
		.num_resources = ARRAY_SIZE(otg_resources),
		};

		#ifdef CONFIG_ARCH_MX35
		static struct resource mxc_fec_resources[] = {
		{

arch/arm/mach-mx3/devices.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -14,3 +14,4 @@ extern struct platform_device mx3_fb;
		extern struct platform_device mxc_fec_device;
		extern struct platform_device mxcsdhc_device0;
		extern struct platform_device mxcsdhc_device1;
		extern struct platform_device mxc_otg_udc_device;

arch/arm/mach-mx3/pcm037.c

+51 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@
		#include <linux/delay.h>
		#include <linux/spi/spi.h>
		#include <linux/irq.h>
		#include <linux/fsl_devices.h>

		#include <mach/hardware.h>
		#include <asm/mach-types.h>
		@@ -131,6 +132,54 @@ static struct resource pcm037_flash_resource = {
		.flags = IORESOURCE_MEM,
		};

		static int usbotg_pins[] = {
		MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
		MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
		MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
		MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
		MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
		MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
		MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
		MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
		MX31_PIN_USBOTG_CLK__USBOTG_CLK,
		MX31_PIN_USBOTG_DIR__USBOTG_DIR,
		MX31_PIN_USBOTG_NXT__USBOTG_NXT,
		MX31_PIN_USBOTG_STP__USBOTG_STP,
		};

		/* USB OTG HS port */
		static int __init gpio_usbotg_hs_activate(void)
		{
		int ret = mxc_iomux_setup_multiple_pins(usbotg_pins,
		ARRAY_SIZE(usbotg_pins), "usbotg");

		if (ret < 0) {
		printk(KERN_ERR "Cannot set up OTG pins\n");
		return ret;
		}

		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);
		mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST);

		return 0;
		}

		/* OTG config */
		static struct fsl_usb2_platform_data usb_pdata = {
		.operating_mode = FSL_USB2_DR_DEVICE,
		.phy_mode = FSL_USB2_PHY_ULPI,
		};

		static struct platform_device pcm037_flash = {
		.name = "physmap-flash",
		.id = 0,
		@@ -345,6 +394,8 @@ static void __init mxc_board_init(void)
		mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
		mxc_register_device(&mx3_ipu, &mx3_ipu_data);
		mxc_register_device(&mx3_fb, &mx3fb_pdata);
		if (!gpio_usbotg_hs_activate())
		mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
		}

		static void __init pcm037_timer_init(void)

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