kernel/drivers/net/dsa/b53/b53_srab.c, branch linux-5.1.y

net: dsa: b53: Fix for failure when irq is not defined in dt

2019-02-08T02:18:37Z

Fixes the issues with non BCM58XX chips in the b53 driver failing, when the irq is not specified in the device tree. Removed the check for BCM58XX in b53_srab_prepare_irq(), so the 'port->irq' will be set to '-EXIO' if the irq is not specified in the device tree. Fixes: 16994374a6fc ("net: dsa: b53: Make SRAB driver manage port interrupts") Fixes: b2ddc48a81b5 ("net: dsa: b53: Do not fail when IRQ are not initialized") Signed-off-by: Arun Parameswaran Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: b53: Do not fail when IRQ are not initialized

2018-09-13T17:19:14Z

When the Device Tree is not providing the per-port interrupts, do not fail during b53_srab_irq_enable() but instead bail out gracefully. The SRAB driver is used on the BCM5301X (Northstar) platforms which do not yet have the SRAB interrupts wired up. Fixes: 16994374a6fc ("net: dsa: b53: Make SRAB driver manage port interrupts") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: b53: Only call b53_port_event() for SGMII ports

2018-09-12T07:06:55Z

Built-in PHY ports are still being polled, avoid generating spurious and duplicate events which the PHY library resolves through polling anyways. Fixes: 0e01491de646 ("net: dsa: b53: Add SerDes support") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: b53: Fix build with B53_SRAB enabled and not B53_SERDES

2018-09-08T06:12:12Z

In case B53_SRAB is enabled, but not B53_SERDES, we can get the following linking error: ERROR: "b53_serdes_init" [drivers/net/dsa/b53/b53_srab.ko] undefined! We also need to ifdef the body of b53_srab_serdes_map_lane() since it would not be used when B53_SERDES is disabled and that would produce a warning. Fixes: 0e01491de646 ("net: dsa: b53: Add SerDes support") Reported-by: kbuild test robot Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Add SerDes support

2018-09-06T14:48:34Z

Add support for the Northstar Plus SerDes which is accessed through a special page of the switch. Since this is something that most people probably will not want to use, make it a configurable option with a default on ARCH_BCM_NSP where it is the most useful currently. The SerDes supports both SGMII and 1000baseX modes for both lanes, and 2500baseX for one of the lanes, and is internally looking like a seemingly standard MII PHY, except for the few bits that got repurposed. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Make SRAB driver manage port interrupts

2018-09-06T14:48:33Z

Update the SRAB driver to manage per-port interrupts. Since we cannot sleep during b53_io_ops, schedule a workqueue whenever we get a port specific interrupt. We will later make use of this to call back into PHYLINK when there is e.g: a link state change. Signed-off-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: b53: Add support for Broadcom Omega SoC internal switch

2018-08-07T22:48:38Z

Add support for the Broadcom Omega SoC internal ethernet switch to the b53 srab driver in the DSA framework. Signed-off-by: Arun Parameswaran Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: b53: Fix for brcm tag issue in Cygnus SoC

2018-06-06T17:47:16Z

In the Broadcom Cygnus SoC, the brcm tag needs to be inserted in between the mac address and the ether type (should use 'DSA_PROTO_TAG_BRCM') for the packets sent to the internal b53 switch. Since the Cygnus was added with the BCM58XX device id and the BCM58XX uses 'DSA_PROTO_TAG_BRCM_PREPEND', the data path is broken, due to the incorrect brcm tag location. Add a new b53 device id (BCM583XX) for Cygnus family to fix the issue. Add the new device id to the BCM58XX family as Cygnus is similar to the BCM58XX in most other functionalities. Fixes: 11606039604c ("net: dsa: b53: Support prepended Broadcom tags") Signed-off-by: Arun Parameswaran Acked-by: Scott Branden Reported-by: Clément Péron Reviewed-by: Florian Fainelli Tested-by: Clément Péron Signed-off-by: David S. Miller

net: dsa: b53: Add compatible strings for the Cygnus-family BCM11360.

2017-05-18T15:01:42Z

Cygnus is a small family of SoCs, of which we currently have devicetree for BCM11360 and BCM58300. The 11360's B53 is mostly the same as 58xx, just requiring a tiny bit of setup that was previously missing. Signed-off-by: Eric Anholt Reviewed-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: David S. Miller

net: dsa: b53: constify b53_io_ops structures

2016-08-09T22:09:40Z

The b53_io_ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall Acked-by: Florian Fainelli Signed-off-by: David S. Miller