diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 6e0043a502..5a65d92719 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2009 Freescale Semiconductor, Inc. + * (C) Copyright 2009, 2011 Freescale Semiconductor, Inc. * * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB * @@ -26,6 +26,7 @@ #include <usb.h> #include <asm/io.h> #include <usb/ehci-fsl.h> +#include <hwconfig.h> #include "ehci.h" #include "ehci-core.h" @@ -39,6 +40,11 @@ int ehci_hcd_init(void) { struct usb_ehci *ehci; + char usb_phy[5]; + const char *phy_type = NULL; + size_t len; + + usb_phy[0] = '\0'; ehci = (struct usb_ehci *)CONFIG_SYS_FSL_USB_ADDR; hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); @@ -52,10 +58,37 @@ int ehci_hcd_init(void) out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB); /* Init phy */ - if (!strcmp(getenv("usb_phy_type"), "utmi")) - out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); + if (hwconfig_sub("usb1", "phy_type")) + phy_type = hwconfig_subarg("usb1", "phy_type", &len); else + phy_type = getenv("usb_phy_type"); + + if (!phy_type) { +#ifdef CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY + /* if none specified assume internal UTMI */ + strcpy(usb_phy, "utmi"); + phy_type = usb_phy; +#else + printf("WARNING: USB phy type not defined !!\n"); + return -1; +#endif + } + + if (!strcmp(phy_type, "utmi")) { +#if defined(CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY) + setbits_be32(&ehci->control, PHY_CLK_SEL_UTMI); + setbits_be32(&ehci->control, UTMI_PHY_EN); + udelay(1000); /* delay required for PHY Clk to appear */ +#endif + out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); + } else { +#if defined(CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY) + clrbits_be32(&ehci->control, UTMI_PHY_EN); + setbits_be32(&ehci->control, PHY_CLK_SEL_ULPI); + udelay(1000); /* delay required for PHY Clk to appear */ +#endif out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI); + } /* Enable interface. */ setbits_be32(&ehci->control, USB_EN); |