The INTB interrupt is used both for 1588 interrupt and preemption status
change interrupt on each port. So clean preempt status interrupt in IRQ
handle function. Without handling it, driver may get interrupt storm.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Reviewed-by: Po Liu <Po.Liu@nxp.com>
(cherry picked from commit 0df3452eb1)
Since the Felix DSA driver is implementing its own PHYLINK instance due
to SoC differences, it needs access to the few registers that are
common, mainly for flow control.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Conflicts:
drivers/net/ethernet/mscc/ocelot_tsn.c
which has been added in downstream patch b5c05e3404 ("net: mscc:
ocelot: tsn configuration support") and also needs to be adapted to the
new location of the header files.
(cherry picked from commit 26b394b629)
The Ocelot switchdev driver and the Felix DSA one need it for different
reasons. Felix (or at least the VSC9959 instantiation in NXP LS1028A) is
integrated with the traditional NXP Layerscape PCS design which does not
support runtime configuration of SerDes protocol. So it needs to
pre-validate the phy-mode from the device tree and prevent PHYLINK from
attempting to change it. For this, it needs to cache it in a private
variable.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
(cherry picked from commit 3076e319e8)
The reason for doing this is that the 2 mainline Ocelot switches so far,
VSC7514 and VSC9959, have radically different SoC/SerDes integration. So
although the PHYLINK callbacks are common, the implementations will
actually lie in device-specific function pointers.
Also, there was a duplicated and unused function pointer for pcs_init in
struct ocelot, remove that.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
This patch reworks ocelot_board.c (aka the MIPS on the VSC7514) to
register a PHYLINK instance for each port. The registration code is
local to the VSC7514, but the PHYLINK callback implementation is common
so that the Felix DSA front-end can use it as well (but DSA does its own
registration).
Now Felix can use native PHYLINK callbacks instead of the PHYLIB
adaptation layer in DSA, which had issues supporting fixed-link slave
ports (no struct phy_device to pass to the adjust_link callback), as
well as fixed-link CPU port at 2.5Gbps.
The old code from ocelot_port_enable and ocelot_port_disable has been
moved into ocelot_phylink_mac_link_up and ocelot_phylink_mac_link_down.
The PHY connect operation has been moved from ocelot_port_open to
mscc_ocelot_probe in ocelot_board.c.
The phy_set_mode_ext() call for the SerDes PHY has also been moved into
mscc_ocelot_probe from ocelot_port_open, and since that was the only
reason why a reference to it was kept in ocelot_port_private, that
reference was removed.
Again, the usage of phy_interface_t phy_mode is now local to
mscc_ocelot_probe only, after moving the PHY connect operation.
So it was also removed from ocelot_port_private.
*Maybe* in the future, it can be added back to the common struct
ocelot_port, with the purpose of validating mismatches between
state->phy_interface and ocelot_port->phy_mode in PHYLINK callbacks.
But at the moment that is not critical, since other DSA drivers are not
doing that either. No SFP+ modules are in use with Felix/Ocelot yet, to
my knowledge.
In-band AN is not yet supported, due to the fact that this is a mostly
mechanical patch for the moment. The mac_an_restart PHYLINK operation
needs to be implemented, as well as mac_link_state. Both are SerDes
specific, and Felix does not have its PCS configured yet (it works just
by virtue of U-Boot initialization at the moment).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
In the LS1028A, the VSC9959 switch was integrated with an NXP PCS which
performs SGMII AN and rate adaptation autonomously. The MAC does not
need to know about this, and forcing the MAC speed to something else,
when connected to a 10/100 link partner, actually breaks the GMII
internal link between the MAC and the PCS.
Add a quirk system in the ocelot driver, and a first quirk called "PCS
performs rate adaptation", to distinguish the VSC7514 from the VSC9959
regarding this behavior.
Signed-off-by: Catalin Horghidan <catalin.horghidan@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Support TSN configuration for ocelot switch. The TSN configuration
fucntions are based on tsn netlink interface, it can support Qbv,
Qbu, Qci, 802.1CB, and Qav configuration now.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Convert to use skb queue instead of the list of skbs.
The skb queue could provide protection with lock.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert to use ocelot_port_add_txtstamp_skb() for adding skbs which
require TX timestamp into list. Export it so that DSA Felix driver
could reuse it too.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The method getting TX timestamp by reading timestamp FIFO and
matching skbs list is common for DSA Felix driver too.
So move code out of ocelot_board.c, convert to use
ocelot_get_txtstamp() function and export it.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Export ocelot_hwstamp_get/set functions so that DSA driver
is able to reuse them.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Felix DSA driver needs to write to SYS_RAM_INIT_RAM_INIT for its own
chip initialization process.
Also update the MAINTAINERS file such that the headers exported by the
ocelot driver are under the same maintainers' umbrella as the driver
itself.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We will be registering another switch driver based on ocelot, which
lives under drivers/net/dsa.
Make sure the Felix DSA front-end has the necessary abstractions to
implement a new Ocelot driver instantiation. This includes the function
prototypes for implementing DSA callbacks.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since HSIO address space can be accessed by different drivers, let's
simplify the register address definitions so that it can be easily used
by all drivers and put the register address definition in the
include/soc/mscc/ocelot_hsio.h header file.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since HSIO address space can be used by different drivers (PLL, SerDes
muxing, temperature sensor), let's move it somewhere it can be included
by all drivers.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xiaoliang Yang