[U-Boot] [PATCH] net: tsec: Fix Marvell 88E1121R phy init
Andy Fleming
afleming at gmail.com
Tue Dec 2 22:46:45 CET 2008
On Tue, Dec 2, 2008 at 3:31 AM, Anatolij Gustschin <agust at denx.de> wrote:
> 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.
Agreed, and...
>
> Signed-off-by: Anatolij Gustschin <agust at denx.de>
Acked-by: Andy Fleming <afleming at freescale.com>
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