Commit ee14373c authored by Sascha Hauer's avatar Sascha Hauer
Browse files

i.MX31 pcm037: Add USB support 



Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 773f206b

arch/arm/mach-mx3/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ config MACH_MX31ADS_WM1133_EV1 
config MACH_PCM037

	bool "Support Phytec pcm037 (i.MX31) platforms"

	select ARCH_MX31

	select MXC_ULPI if USB_ULPI

	help

	  Include support for Phytec pcm037 platform. This includes

	  specific configurations for the board and its peripherals.

arch/arm/mach-mx3/mach-pcm037.c

+92 −45
Original line number Diff line number Diff line
@@ -33,6 +33,9 @@ 
#include <linux/irq.h>

#include <linux/fsl_devices.h>

#include <linux/can/platform/sja1000.h>

#include <linux/usb/otg.h>

#include <linux/usb/ulpi.h>

#include <linux/fsl_devices.h>



#include <media/soc_camera.h>
@@ -51,6 +54,8 @@ 
#include <mach/mx3_camera.h>

#include <mach/mx3fb.h>

#include <mach/mxc_nand.h>

#include <mach/mxc_ehci.h>

#include <mach/ulpi.h>



#include "devices.h"

#include "pcm037.h"
@@ -172,19 +177,7 @@ static unsigned int pcm037_pins[] = { 
	MX31_PIN_CSI_VSYNC__CSI_VSYNC,

	/* GPIO */

	IOMUX_MODE(MX31_PIN_ATA_DMACK, IOMUX_CONFIG_GPIO),

};



static struct physmap_flash_data pcm037_flash_data = {

	.width  = 2,

};



static struct resource pcm037_flash_resource = {

	.start	= 0xa0000000,

	.end	= 0xa1ffffff,

	.flags	= IORESOURCE_MEM,

};



static int usbotg_pins[] = {

	/* OTG */

	MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,

	MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,

	MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
@@ -197,39 +190,29 @@ static int usbotg_pins[] = { 
	MX31_PIN_USBOTG_DIR__USBOTG_DIR,

	MX31_PIN_USBOTG_NXT__USBOTG_NXT,

	MX31_PIN_USBOTG_STP__USBOTG_STP,

	/* USB host 2 */

	IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),

	IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),

};



/* 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;

}

static struct physmap_flash_data pcm037_flash_data = {

	.width  = 2,

};



/* OTG config */

static struct fsl_usb2_platform_data usb_pdata = {

	.operating_mode	= FSL_USB2_DR_DEVICE,

	.phy_mode	= FSL_USB2_PHY_ULPI,

static struct resource pcm037_flash_resource = {

	.start	= 0xa0000000,

	.end	= 0xa1ffffff,

	.flags	= IORESOURCE_MEM,

};



static struct platform_device pcm037_flash = {
@@ -561,16 +544,65 @@ static struct platform_device pcm970_sja1000 = { 
	.num_resources = ARRAY_SIZE(pcm970_sja1000_resources),

};



static struct mxc_usbh_platform_data otg_pdata = {

	.portsc	= MXC_EHCI_MODE_ULPI,

	.flags	= MXC_EHCI_INTERFACE_DIFF_UNI,

};



static struct mxc_usbh_platform_data usbh2_pdata = {

	.portsc	= MXC_EHCI_MODE_ULPI,

	.flags	= MXC_EHCI_INTERFACE_DIFF_UNI,

};



static struct fsl_usb2_platform_data otg_device_pdata = {

	.operating_mode = FSL_USB2_DR_DEVICE,

	.phy_mode       = FSL_USB2_PHY_ULPI,

};



static int otg_mode_host;



static int __init pcm037_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=", pcm037_otg_mode);



/*

 * Board specific initialization.

 */

static void __init mxc_board_init(void)

{

	int ret;

	u32 tmp;



	mxc_iomux_set_gpr(MUX_PGP_UH2, 1);



	mxc_iomux_setup_multiple_pins(pcm037_pins, ARRAY_SIZE(pcm037_pins),

			"pcm037");



#define H2_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS \

		| PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)



	mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, H2_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, H2_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, H2_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_STP, H2_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, H2_PAD_CFG); /* USBH2_DATA0 */

	mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, H2_PAD_CFG); /* USBH2_DATA1 */

	mxc_iomux_set_pad(MX31_PIN_SRXD6, H2_PAD_CFG);	/* USBH2_DATA2 */

	mxc_iomux_set_pad(MX31_PIN_STXD6, H2_PAD_CFG);	/* USBH2_DATA3 */

	mxc_iomux_set_pad(MX31_PIN_SFS3, H2_PAD_CFG);	/* USBH2_DATA4 */

	mxc_iomux_set_pad(MX31_PIN_SCK3, H2_PAD_CFG);	/* USBH2_DATA5 */

	mxc_iomux_set_pad(MX31_PIN_SRXD3, H2_PAD_CFG);	/* USBH2_DATA6 */

	mxc_iomux_set_pad(MX31_PIN_STXD3, H2_PAD_CFG);	/* USBH2_DATA7 */



	if (pcm037_variant() == PCM037_EET)

		mxc_iomux_setup_multiple_pins(pcm037_uart1_pins,

			ARRAY_SIZE(pcm037_uart1_pins), "pcm037_uart1");
@@ -608,8 +640,6 @@ 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);



	/* CSI */

	/* Camera power: default - off */
@@ -623,6 +653,23 @@ static void __init mxc_board_init(void) 
		mxc_register_device(&mx3_camera, &camera_pdata);



	platform_device_register(&pcm970_sja1000);



#if defined(CONFIG_USB_ULPI)

	if (otg_mode_host) {

		otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,

				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);



		mxc_register_device(&mxc_otg_host, &otg_pdata);

	}



	usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,

				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);



	mxc_register_device(&mxc_usbh2, &usbh2_pdata);

#endif

	if (!otg_mode_host)

		mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);



}



static void __init pcm037_timer_init(void)

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