• Anatolij Gustschin's avatar
    USB: add USB EHCI support for MPC5121 SoC · 230f7ede
    Anatolij Gustschin authored
    Extends FSL EHCI platform driver glue layer to support
    MPC5121 USB controllers. MPC5121 Rev 2.0 silicon EHCI
    registers are in big endian format. The appropriate flags
    are set using the information in the platform data structure.
    MPC83xx system interface registers are not available on
    MPC512x, so the access to these registers is isolated in
    MPC512x case. Furthermore the USB controller clocks
    must be enabled before 512x register accesses which is
    done by providing platform specific init callback.
    
    The MPC512x internal USB PHY doesn't provide supply voltage.
    For boards using different power switches allow specifying
    DRVVBUS and PWR_FAULT signal polarity of the MPC5121 internal
    PHY using "fsl,invert-drvvbus" and "fsl,invert-pwr-fault"
    properties in the device tree USB nodes. Adds documentation
    for this new device tree bindings.
    Signed-off-by: default avatarAnatolij Gustschin <agust@denx.de>
    Cc: Grant Likely <grant.likely@secretlab.ca>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
    230f7ede
ehci-fsl.c 12.1 KB