RE: [PATCH v3 net-next] net: stmmac: Add support for MDIO interrupts
From: Andrew Lunn Date: Sep/06/2019, 15:24:46 (UTC+00:00) > On Fri, Sep 06, 2019 at 01:31:14PM +, Jose Abreu wrote: > > From: Voon Weifeng > > Date: Sep/05/2019, 13:05:30 (UTC+00:00) > > > > > DW EQoS v5.xx controllers added capability for interrupt generation > > > when MDIO interface is done (GMII Busy bit is cleared). > > > This patch adds support for this interrupt on supported HW to avoid > > > polling on GMII Busy bit. > > > > Better leave the enabling of this optional because the support for it is > > also optional depending on the IP HW configuration. > > Hi Jose > > If there a register which indicates if this feature is part of the IP? Yes. That would be SMASEL which is Bit 5 of register MAC_HW_Feature0. --- Thanks, Jose Miguel Abreu
Re: [PATCH v3 net-next] net: stmmac: Add support for MDIO interrupts
On Fri, Sep 06, 2019 at 01:31:14PM +, Jose Abreu wrote: > From: Voon Weifeng > Date: Sep/05/2019, 13:05:30 (UTC+00:00) > > > DW EQoS v5.xx controllers added capability for interrupt generation > > when MDIO interface is done (GMII Busy bit is cleared). > > This patch adds support for this interrupt on supported HW to avoid > > polling on GMII Busy bit. > > Better leave the enabling of this optional because the support for it is > also optional depending on the IP HW configuration. Hi Jose If there a register which indicates if this feature is part of the IP? Andrew
RE: [PATCH v3 net-next] net: stmmac: Add support for MDIO interrupts
From: Voon Weifeng Date: Sep/05/2019, 13:05:30 (UTC+00:00) > DW EQoS v5.xx controllers added capability for interrupt generation > when MDIO interface is done (GMII Busy bit is cleared). > This patch adds support for this interrupt on supported HW to avoid > polling on GMII Busy bit. Better leave the enabling of this optional because the support for it is also optional depending on the IP HW configuration. --- Thanks, Jose Miguel Abreu
