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path: root/drivers/net/ethernet/cadence/macb.h
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2020-10-13macb: support the two tx descriptors on at91rm9200Willy Tarreau1-0/+2
The at91rm9200 variant used by a few chips including the MSC313 supports two Tx descriptors (one frame being serialized and another one queued). However the driver only implemented a single one, which adds a dead time after each transfer to receive and process the interrupt and wake the queue up, preventing from reaching line rate. This patch implements a very basic 2-deep queue to address this limitation. The tests run on a Breadbee board equipped with an MSC313E show that at 1 GHz, HTTP traffic on medium-sized objects (45kB) was limited to exactly 50 Mbps before this patch, and jumped to 76 Mbps with this patch. And tests on a single TCP stream with an MTU of 576 jump from 10kpps to 15kpps. With 1500 byte packets it's now possible to reach line rate versus 75 Mbps before. Cc: Nicolas Ferre <[email protected]> Cc: Claudiu Beznea <[email protected]> Cc: Daniel Palmer <[email protected]> Signed-off-by: Willy Tarreau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2020-10-13macb: prepare at91 to use a 2-frame TX queueWilly Tarreau1-4/+2
The RM9200 supports one frame being sent while another one is waiting in queue. This avoids the dead time that follows the emission of a frame and which prevents one from reaching line speed. Right now the driver supports only a single skb, so we'll first replace the rm9200-specific skb info with an array of two macb_tx_skb (already used by other drivers). This patch only moves the skb_length to txq[0].size and skb_physaddr to skb[0].mapping but doesn't perform any other change. It already uses [desc] in order to minimize future changes. Cc: Nicolas Ferre <[email protected]> Cc: Claudiu Beznea <[email protected]> Cc: Daniel Palmer <[email protected]> Signed-off-by: Willy Tarreau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2020-10-13macb: add RM9200's interrupt flag TBREWilly Tarreau1-0/+2
Transmit Buffer Register Empty replaces TXERR on RM9200 and signals the sender may try to send again becase the last queued frame is no longer in queue (being transmitted or already transmitted). Cc: Nicolas Ferre <[email protected]> Cc: Claudiu Beznea <[email protected]> Cc: Daniel Palmer <[email protected]> Signed-off-by: Willy Tarreau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2020-09-30net: macb: move pdata to private headerAlexandre Belloni1-0/+11
struct macb_platform_data is only used by macb_pci to register the platform device, move its definition to cadence/macb.h and remove platform_data/macb.h Signed-off-by: Alexandre Belloni <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-20net: macb: WoL support for GEM type of Ethernet controllerNicolas Ferre1-0/+3
Adapt the Wake-on-Lan feature to the Cadence GEM Ethernet controller. This controller has different register layout and cannot be handled by previous code. We disable completely interrupts on all the queues but the queue 0. Handling of WoL interrupt is done in another interrupt handler positioned depending on the controller version used, just between suspend() and resume() calls. It allows to lower pressure on the generic interrupt hot path by removing the need to handle 2 tests for each IRQ: the first figuring out the controller revision, the second for actually knowing if the WoL bit is set. Queue management in suspend()/resume() functions inspired from RFC patch by Harini Katakam <[email protected]>, thanks! Cc: Claudiu Beznea <[email protected]> Cc: Harini Katakam <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-27net: macb: use resolved link config in mac_link_up()Russell King1-1/+0
Convert the macb ethernet driver to use the finalised link parameters in mac_link_up() rather than the parameters in mac_config(). Tested-by: Alexandre Belloni <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-02-20net: macb: Properly handle phylink on at91rm9200Alexandre Belloni1-0/+1
at91ether_init was handling the phy mode and speed but since the switch to phylink, the NCFGR register got overwritten by macb_mac_config(). The issue is that the RM9200_RMII bit and the MACB_CLK_DIV32 field are cleared but never restored as they conflict with the PAE, GBE and PCSSEL bits. Add new capability to differentiate between EMAC and the other versions of the IP and use it to set and avoid clearing the relevant bits. Also, this fixes a NULL pointer dereference in macb_mac_link_up as the EMAC doesn't use any rings/bufffers/queues. Fixes: 7897b071ac3b ("net: macb: convert to phylink") Signed-off-by: Alexandre Belloni <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-01-09net: macb: add support for C45 MDIO read/writeMilind Parab1-4/+11
This patch modify MDIO read/write functions to support communication with C45 PHY. Signed-off-by: Milind Parab <[email protected]> Reviewed-by: Andrew Lunn <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-11-13net: macb: convert to phylinkAntoine Tenart1-5/+4
This patch converts the MACB Ethernet driver to the Phylink framework. The MAC configuration is moved to the Phylink ops and Phylink helpers are now used in the ethtools functions. This helps to access the flow control and pauseparam logic and this will be helpful in the future for boards using this controller with SFP cages. Tested-by: Alexandre Belloni <[email protected]> Signed-off-by: Antoine Tenart <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-07-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+8
Two cases of overlapping changes, nothing fancy. Signed-off-by: David S. Miller <[email protected]>
2019-06-29net: macb: Fix SUBNS increment and increase resolutionHarini Katakam1-1/+5
The subns increment register has 24 bits as follows: RegBit[15:0] = Subns[23:8]; RegBit[31:24] = Subns[7:0] Fix the same in the driver and increase sub ns resolution to the best capable, 24 bits. This should be the case on all GEM versions that this PTP driver supports. Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-29net: macb: Add separate definition for PPM fractionHarini Katakam1-0/+3
The scaled ppm parameter passed to _adjfine() contains a 16 bit fraction. This just happens to be the same as SUBNSINCR_SIZE now. Hence define this separately. Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-24net: macb: use GROAntoine Tenart1-1/+2
This patch updates the macb driver to use NAPI GRO helpers when receiving SKBs. This improves performances. Signed-off-by: Antoine Tenart <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-05-22net: macb: save/restore the remaining registers and featuresClaudiu Beznea1-0/+7
SAMA5D2 SoC has a suspend mode where SoC's power is cut off. Due to this the registers content is lost after a suspend/resume cycle. The current suspend/resume implementation covers some of these registers. However there are few which were not treated (e.g. SCRT2 and USRIO). Apart from this, netdev features are not restored. Treat these issues. Signed-off-by: Claudiu Beznea <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-03-03net: macb: Support clock management for tsu_clkHarini Katakam1-1/+2
TSU clock needs to be enabled/disabled as per support in devicetree and it should also be controlled during suspend/resume (WOL has no dependency on this clock). Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-03-03net: macb: Check MDIO state before read/write and use timeoutsHarini Katakam1-0/+2
Replace the while loop in MDIO read/write functions with a timeout. In addition, add a check for MDIO bus busy before initiating a new operation as well to make sure there is no ongoing MDIO operation. Signed-off-by: Shubhrajyoti Datta <[email protected]> Signed-off-by: Sai Pavan Boddu <[email protected]> Signed-off-by: Harini Katakam <[email protected]> Reviewed-by: Andrew Lunn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-01-29net: macb: Apply RXUBR workaround only to versions with errataHarini Katakam1-0/+3
The interrupt handler contains a workaround for RX hang applicable to Zynq and AT91RM9200 only. Subsequent versions do not need this workaround. This workaround unnecessarily resets RX whenever RX used bit read is observed, which can be often under heavy traffic. There is no other action performed on RX UBR interrupt. Hence introduce a CAPS mask; enable this interrupt and workaround only on affected versions. Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-07-07net: macb: Allocate valid memory for TX and RX BD prefetchHarini Katakam1-0/+11
GEM version in ZynqMP and most versions greater than r1p07 supports TX and RX BD prefetch. The number of BDs that can be prefetched is a HW configurable parameter. For ZynqMP, this parameter is 4. When GEM DMA is accessing the last BD in the ring, even before the BD is processed and the WRAP bit is noticed, it will have prefetched BDs outside the BD ring. These will not be processed but it is necessary to have accessible memory after the last BD. Especially in cases where SMMU is used, memory locations immediately after the last BD may not have translation tables triggering HRESP errors. Hence always allocate extra BDs to accommodate for prefetch. The value of tx/rx bd prefetch for any given SoC version is: 2 ^ (corresponding field in design config 10 register). (value of this field >= 1) Added a capability flag so that older IP versions that do not have DCFG10 or this prefetch capability are not affected. Signed-off-by: Harini Katakam <[email protected]> Reviewed-by: Claudiu Beznea <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2018-01-29net: macb: Handle HRESP errorHarini Katakam1-0/+3
Handle HRESP error by doing a SW reset of RX and TX and re-initializing the descriptors, RX and TX queue pointers. Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: Michal Simek <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-12-05macb: Kill PHY reset codeSergei Shtylyov1-1/+0
With the phylib now being aware of the "reset-gpios" PHY node property, there should be no need to frob the PHY reset in this driver anymore... Signed-off-by: Sergei Shtylyov <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Reviewed-by: Florian Fainelli <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-11-30net: macb: Added support for RX filteringRafal Ozieblo1-0/+109
This patch allows filtering received packets to different hardware queues (aka ntuple). Signed-off-by: Rafal Ozieblo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-11-30net: macb: Added some queue statisticsRafal Ozieblo1-1/+30
Added statistics per queue: - qX_rx_packets - qX_rx_bytes - qX_rx_dropped - qX_tx_packets - qX_tx_bytes - qX_tx_dropped Signed-off-by: Rafal Ozieblo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-11-30net: macb: Added support for many RX queuesRafal Ozieblo1-10/+16
To be able for packet reception on different RX queues some configuration has to be performed. This patch checks how many hardware queue does GEM support and initializes them. Signed-off-by: Rafal Ozieblo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-06-30net: macb: Add hardware PTP supportRafal Ozieblo1-0/+126
This patch is based on original Harini's patch and Andrei's patch, implemented in a separate file to ease the review/maintanance and integration with other platforms. This driver supports GEM-GXL: - Register ptp clock framework - Initialize PTP related registers - HW time stamp on the PTP Ethernet packets are received using the SO_TIMESTAMPING API. Time stamps are obtained from the dma buffer descriptors - add macb_ptp to compilation chain Signed-off-by: Rafal Ozieblo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-06-30net: macb: Add support for PTP timestamps in DMA descriptorsRafal Ozieblo1-7/+25
This patch adds support for PTP timestamps in DMA buffer descriptors. It checks capability at runtime and uses appropriate buffer descriptor. Signed-off-by: Rafal Ozieblo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-06-25net: macb: add fixed-link node supportMichael Grzeschik1-0/+1
In case the MACB is directly connected to a non-mdio PHY/device, it should be possible to provide a fixed link configuration in the DT. Signed-off-by: Michael Grzeschik <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-04-07net: macb: Use net_device_stats from struct net_deviceTobias Klauser1-1/+0
Instead of using a private copy of struct net_device_stats in struct macb, use stats from struct net_device. Cc: Nicolas Ferre <[email protected]> Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-10net: macb: fix build errors when linux/phy*.h is removed from net/dsa.hRussell King1-0/+2
drivers/net/ethernet/cadence/macb.h:862:33: sparse: expected ; at end of declaration drivers/net/ethernet/cadence/macb.h:862:33: sparse: Expected } at end of struct-union-enum-specifier drivers/net/ethernet/cadence/macb.h:862:33: sparse: got phy_interface drivers/net/ethernet/cadence/macb.h:877:1: sparse: Expected ; at the end of type declaration drivers/net/ethernet/cadence/macb.h:877:1: sparse: got } In file included from drivers/net/ethernet/cadence/macb_pci.c:29:0: drivers/net/ethernet/cadence/macb.h:862:2: error: unknown type name 'phy_interface_t' phy_interface_t phy_interface; ^~~~~~~~~~~~~~~ Add linux/phy.h to macb.h Signed-off-by: Russell King <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-3/+16
All merge conflicts were simple overlapping changes. Signed-off-by: David S. Miller <[email protected]>
2017-01-29net: macb: Fix 64 bit addressing support for GEMRafal Ozieblo1-3/+17
This patch adds support for 32 bit GEM in 64 bit system. It checks capability at runtime and uses appropriate buffer descriptor. Signed-off-by: Rafal Ozieblo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-01-19macb: Common code to enable ptp support for MACB/GEM[email protected]1-0/+74
This patch does the following: - MACB/GEM-PTP interface - registers and bitfields for TSU - capability flags to enable PTP per platform basis Signed-off-by: Andrei Pistirica <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-11-16cadence: Add LSO support.Rafal Ozieblo1-0/+14
New Cadence GEM hardware support Large Segment Offload (LSO): TCP segmentation offload (TSO) as well as UDP fragmentation offload (UFO). Support for those features was added to the driver. Signed-off-by: David S. Miller <[email protected]>
2016-10-19net: macb: Use variables with defaults for tx/rx ring sizes instead of ↵Zach Brown1-0/+3
hardcoded values The macb driver hardcoded the tx/rx ring sizes. This made it impossible to change the sizes at run time. Add tx_ring_size, and rx_ring_size variables to macb object, which are initilized with default vales during macb_init. Change all references to RX_RING_SIZE and TX_RING_SIZE to their respective replacements. Signed-off-by: Zach Brown <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-08-18net: ethernet: macb: Add support for rx_clk[email protected]1-1/+3
Some of the platforms like zynqmp ultrascale+ has a separate clock gate for the rx clock. Add an optional rx_clk so that the clock can be enabled. Signed-off-by: Shubhrajyoti Datta <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-08-10net: macb: Add 64 bit addressing support for GEMHarini Katakam1-0/+10
This patch adds support for 64 bit addressing and BDs. -> Enable 64 bit addressing in DMACFG register. -> Set DMA mask when design config register shows support for 64 bit addr. -> Add new BD words for higher address when 64 bit DMA support is present. -> Add and update TBQPH and RBQPH for MSB of BD pointers. -> Change extraction and updation of buffer addresses to use 64 bit address. -> In gem_rx extract address in one place insted of two and use a separate flag for RXUSED. Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-08-06net: macb: Correct CAPS maskHarini Katakam1-1/+1
USRIO and JUMBO CAPS have the same mask. Fix the same. Fixes: ce721a702197 ("net: ethernet: cadence-macb: Add disabled usrio caps") Cc: [email protected] # v4.5+ Signed-off-by: Harini Katakam <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-06-25net: ethernet: macb: use phydev from struct net_devicePhilippe Reynes1-1/+0
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by: Philippe Reynes <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-03-13net: macb: fix default configuration for GMAC on AT91Nicolas Ferre1-1/+1
On AT91 SoCs, the User Register (USRIO) exposes a switch to configure the "Reduced" or "Traditional" version of the Media Independent Interface (RMII vs. MII or RGMII vs. GMII). As on the older EMAC version, on GMAC, this switch is set by default to the non-reduced type of interface, so use the existing capability and extend it to GMII as well. We then keep the current logic in the macb_init() function. The capabilities of sama5d2, sama5d4 and sama5d3 GEM interface are updated in the macb_config structure to be able to properly enable them with a traditional interface (GMII or MII). Reported-by: Romain HENRIET <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-02-11net: macb: add wake-on-lan support via magic packetSergio Prado1-0/+4
Tested on Acqua A5 SoM (http://www.acmesystems.it/acqua). Signed-off-by: Sergio Prado <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-01-07net: ethernet: cadence-macb: Add disabled usrio capsNeil Armstrong1-0/+1
On some platforms, the macb integration does not use the USRIO register to configure the (R)MII port and clocks. When the register is not implemented and the MACB error signal is connected to the bus error, reading or writing to the USRIO register can trigger some Imprecise External Aborts on ARM platforms. Signed-off-by: Neil Armstrong <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-12-14net/macb: add support for resetting PHY using GPIOGregory CLEMENT1-0/+1
With device tree it is no more possible to reset the PHY at board level. Furthermore, doing in the driver allow to power down the PHY when the network interface is no more used. This reset can't be done at the PHY driver level. The PHY must be able to answer the to the mii bus scan to let the kernel creating a PHY device. The patch introduces a new optional property "phy-reset-gpios" inspired from the one use for the FEC. Signed-off-by: Gregory CLEMENT <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-11-18net: macb: Add support for sgmii phy interfacePunnaiah Choudary Kalluri1-0/+5
This patch adds support for the sgmii phy interface. Signed-off-by: Punnaiah Choudary Kalluri <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-07-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-20/+14
Conflicts: arch/s390/net/bpf_jit_comp.c drivers/net/ethernet/ti/netcp_ethss.c net/bridge/br_multicast.c net/ipv4/ip_fragment.c All four conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <[email protected]>
2015-07-27macb: Fix build with macro'ized readl/writel.David S. Miller1-8/+8
If an architecture defines readl/writel using CPP macros, we get the following kinds of build failure: > > > drivers/net/ethernet/cadence/macb.c:164:1: error: macro "writel" > > > passed 3 arguments, but takes just 2 > macb_or_gem_writel(bp, SA1B, bottom); > ^ Rename the methods so that this doesn't happen. Signed-off-by: David S. Miller <[email protected]>
2015-07-27net/macb: suppress compiler warningsAndy Shevchenko1-3/+3
This patch fixes the following warnings: drivers/net/ethernet/cadence/macb.c: In function ‘macb_handle_link_change’: drivers/net/ethernet/cadence/macb.c:266: warning: comparison between signed and unsigned drivers/net/ethernet/cadence/macb.c:267: warning: comparison between signed and unsigned drivers/net/ethernet/cadence/macb.c:291: warning: comparison between signed and unsigned drivers/net/ethernet/cadence/macb.c: In function ‘gem_update_stats’: drivers/net/ethernet/cadence/macb.c:1908: warning: comparison between signed and unsigned drivers/net/ethernet/cadence/macb.c: In function ‘gem_get_ethtool_strings’: drivers/net/ethernet/cadence/macb.c:1988: warning: comparison between signed and unsigned Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-07-27net/macb: improve big endian CPU supportAndy Shevchenko1-17/+11
The commit a50dad355a53 (net: macb: Add big endian CPU support) converted I/O accessors to readl_relaxed() and writel_relaxed() and consequentially broke MACB driver on AVR32 platforms such as ATNGW100. This patch improves I/O access by checking endiannes first and use the corresponding methods. Fixes: a50dad355a53 (net: macb: Add big endian CPU support) Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-07-26net: macb: Change capability mask for jumbo supportHarini Katakam1-1/+1
JUMBO and NO_GIGABIT_HALF have the same capability masks. Change one of them. Signed-off-by: Harini Katakam <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+1
Conflicts: drivers/net/ethernet/cadence/macb.c drivers/net/phy/phy.c include/linux/skbuff.h net/ipv4/tcp.c net/switchdev/switchdev.c Switchdev was a case of RTNH_H_{EXTERNAL --> OFFLOAD} renaming overlapping with net-next changes of various sorts. phy.c was a case of two changes, one adding a local variable to a function whilst the second was removing one. tcp.c overlapped a deadlock fix with the addition of new tcp_info statistic values. macb.c involved the addition of two zyncq device entries. skbuff.h involved adding back ipv4_daddr to nf_bridge_info whilst net-next changes put two other existing members of that struct into a union. Signed-off-by: David S. Miller <[email protected]>
2015-05-22net: macb: Disable half duplex gigabit on ZynqNathan Sullivan1-0/+1
According to the Zynq TRM, gigabit half duplex is not supported. Add a new cap and compatible string so Zynq can avoid advertising that mode. Signed-off-by: Nathan Sullivan <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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