• A
    net: tsec: Fix Marvell 88E1121R phy init · 23afaba6
    Anatolij Gustschin 提交于
    This patch tries to ensure that phy interrupt pin
    won't be asserted after booting. We experienced
    following issues with current 88E1121R phy init:
    
    Marvell 88E1121R phy can be hardware-configured
    to share MDC/MDIO and interrupt pins for both ports
    P0 and P1 (e.g. as configured on socrates board).
    Port 0 interrupt pin will be shared by both ports
    in such configuration. After booting Linux and
    configuring eth0 interface, port 0 phy interrupts
    are enabled. After rebooting without proper eth0
    interface shutdown port 0 phy interrupts remain
    enabled so any change on port 0 (link status, etc.)
    cause assertion of the interrupt. Now booting Linux
    and configuring eth1 interface will cause permanent
    phy interrupt storm as the registered phy 1 interrupt
    handler doesn't acknowledge phy 0 interrupts. This
    of course should be fixed in Linux driver too.
    Signed-off-by: NAnatolij Gustschin <agust@denx.de>
    Acked-by: NAndy Fleming <afleming@freescale.com>
    Signed-off-by: NBen Warren <biggerbadderben@gmail.com>
    23afaba6
tsec.c 44.3 KB