From: Jack Pham <jackp@xxxxxxxxxxxxxx> Disable the silicon quirk which is normally enabled for HSIC host mode. This would otherwise prevent low speed devices from enumerating properly. Signed-off-by: Jack Pham <jackp@xxxxxxxxxxxxxx> Signed-off-by: Timur Tabi <timur@xxxxxxxxxxxxxx> --- drivers/usb/host/ehci-msm.c | 2 ++ include/linux/usb/msm_hsusb_hw.h | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index c23e285..aed499d 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -61,6 +61,8 @@ static int ehci_msm_reset(struct usb_hcd *hcd) writel(0x8, USB_AHBMODE); /* Disable streaming mode and select host mode */ writel(0x13, USB_USBMODE); + /* Disable ULPI_TX_PKT_EN_CLR_FIX which is valid only for HSIC */ + writel(readl(USB_GENCONFIG_2) & ~ULPI_TX_PKT_EN_CLR_FIX, USB_GENCONFIG_2); return 0; } diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h index e159b39..974c379 100644 --- a/include/linux/usb/msm_hsusb_hw.h +++ b/include/linux/usb/msm_hsusb_hw.h @@ -22,6 +22,7 @@ #define USB_AHBBURST (MSM_USB_BASE + 0x0090) #define USB_AHBMODE (MSM_USB_BASE + 0x0098) #define USB_GENCONFIG_2 (MSM_USB_BASE + 0x00a0) +#define ULPI_TX_PKT_EN_CLR_FIX BIT(19) #define USB_CAPLENGTH (MSM_USB_BASE + 0x0100) /* 8 bit */ -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
