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mx31moboard: added usb xcvr reset for mx31moboard
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Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Valentin Longchamp authored and Sascha Hauer committed Aug 14, 2009
1 parent 89829d5 commit b23f153
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Showing 3 changed files with 49 additions and 27 deletions.
30 changes: 16 additions & 14 deletions arch/arm/mach-mx3/mx31moboard-devboard.c
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Original file line number Diff line number Diff line change
Expand Up @@ -116,23 +116,25 @@ static struct fsl_usb2_platform_data usb_pdata = {
.phy_mode = FSL_USB2_PHY_ULPI,
};

#define OTG_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST)
#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)

#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)

static void devboard_usbotg_init(void)
{
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);

gpio_request(OTG_EN_B, "usb-udc-en");
gpio_direction_output(OTG_EN_B, 0);
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28 changes: 15 additions & 13 deletions arch/arm/mach-mx3/mx31moboard-marxbot.c
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Original file line number Diff line number Diff line change
Expand Up @@ -120,23 +120,25 @@ static struct fsl_usb2_platform_data usb_pdata = {
.phy_mode = FSL_USB2_PHY_ULPI,
};

#define OTG_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST)
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)

#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)

static void marxbot_usbotg_init(void)
{
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, OTG_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);

gpio_request(OTG_EN_B, "usb-udc-en");
gpio_direction_output(OTG_EN_B, 0);
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18 changes: 18 additions & 0 deletions arch/arm/mach-mx3/mx31moboard.c
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
Expand Down Expand Up @@ -56,6 +57,8 @@ static unsigned int moboard_pins[] = {
MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
/* USB reset */
MX31_PIN_GPIO1_0__GPIO1_0,
};

static struct physmap_flash_data mx31moboard_flash_data = {
Expand Down Expand Up @@ -143,6 +146,19 @@ static struct imxmmc_platform_data sdhc1_pdata = {
.exit = moboard_sdhc1_exit,
};

/*
* this pin is dedicated for all mx31moboard systems, so we do it here
*/
#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)

static void usb_xcvr_reset(void)
{
gpio_request(USB_RESET_B, "usb-reset");
gpio_direction_output(USB_RESET_B, 0);
mdelay(1);
gpio_set_value(USB_RESET_B, 1);
}

static struct platform_device *devices[] __initdata = {
&mx31moboard_flash,
};
Expand All @@ -168,6 +184,8 @@ static void __init mxc_board_init(void)

mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);

usb_xcvr_reset();

switch (mx31moboard_baseboard) {
case MX31NOBOARD:
break;
Expand Down

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