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path: root/drivers/net/phy/micrel.c
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* net: phy: micrel: add support for KSZ886x switches in MIIM modeAlexey Firago2016-06-21-0/+26
| | | | | | | | | | | | | | | | | | | | | | | This patch adds a phy driver for the Micrel KSZ886x switches. Similarly to the KSZ8895, SoC MAC is directly connected to the switch MAC on the switch CPU port, so the link to the switch is always up. KSZ886x switches can be used in the following configuration modes: - Unmanaged mode with config stored in external EEPROM - Managed mode over SPI - Managed mode over I2C - Managed mode over mdio/mdc (aka MIIM or SMI) This patch supports only unmanaged and MIIM modes. Based on Micrel KSZ886x driver from Linux kernel and Micrel KSZ8895 driver from U-Boot. Verified with the KSZ8863MLL. Signed-off-by: Alexey Firago <alexey_firago@mentor.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: Handle phy_startup() error codes properlyMichal Simek2016-05-24-1/+6
| | | | | | | Propagate error code from genphy_update_link() to phy startup(). Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Stephen Warren <swarren@nvidia.com>
* drivers: net: phy: micrel: fix build errors with CONFIG_DM_ETHMugunthan V N2016-02-08-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When Micrel phy is selected without CONFIG_PHY_MICREL_KSZ9031 or CONFIG_PHY_MICREL_KSZ9021 there is a build error. Fixing this by adding proper ifdefs drivers/net/phy/micrel.c:370:39: error: array type has incomplete element type static const struct ksz90x1_reg_field ksz9031_ctl_grp[] = ^ drivers/net/phy/micrel.c:372:39: error: array type has incomplete element type static const struct ksz90x1_reg_field ksz9031_clk_grp[] = ^ drivers/net/phy/micrel.c: In function ‘ksz9031_of_config’: drivers/net/phy/micrel.c:377:23: error: array type has incomplete element type struct ksz90x1_ofcfg ofcfg[] = { ^ drivers/net/phy/micrel.c:379:13: error: ‘ksz90x1_rxd_grp’ undeclared (first use in this function) { MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW, 2, ksz90x1_rxd_grp, 4 }, ^ drivers/net/phy/micrel.c:379:13: note: each undeclared identifier is reported only once for each function it appears in drivers/net/phy/micrel.c:380:13: error: ‘ksz90x1_txd_grp’ undeclared (first use in this function) { MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW, 2, ksz90x1_txd_grp, 4 }, ^ drivers/net/phy/micrel.c:386:3: warning: implicit declaration of function ‘ksz90x1_of_config_group’ [-Wimplicit-function-declaration] ret = ksz90x1_of_config_group(phydev, &(ofcfg[i])); ^ drivers/net/phy/micrel.c:377:23: warning: unused variable ‘ofcfg’ [-Wunused-variable] struct ksz90x1_ofcfg ofcfg[] = { ^ drivers/net/phy/micrel.c: At top level: drivers/net/phy/micrel.c:370:39: warning: ‘ksz9031_ctl_grp’ defined but not used [-Wunused-variable] static const struct ksz90x1_reg_field ksz9031_ctl_grp[] = ^ drivers/net/phy/micrel.c:372:39: warning: ‘ksz9031_clk_grp’ defined but not used [-Wunused-variable] static const struct ksz90x1_reg_field ksz9031_clk_grp[] = ^ scripts/Makefile.build:277: recipe for target 'drivers/net/phy/micrel.o' failed make[1]: *** [drivers/net/phy/micrel.o] Error 1 Makefile:1201: recipe for target 'drivers/net/phy' failed make: *** [drivers/net/phy] Error 2 make: *** Waiting for unfinished jobs.... Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: micrel: fix divisor value for KSZ9031 phy skewDinh Nguyen2016-01-28-1/+1
| | | | | | | | | | | | | | | | | | | | | The picoseconds to register value divisor(ps_to_regval) should be 60 and not 200. Linux has KSZ9031_PS_TO_REG defined to be 60 as well. 60 is the correct divisor because the 4-bit skew values are defined from 0x0000(-420ps) to 0xffff(480ps), increments of 60. For example, a DTS skew value of 420, represents 0ps delay, which should be 0x7. With the previous divisor of 200, it would result in 0x2, which represents a -300ps delay. With this patch, ethernet on the SoCFPGA DE0 Atlas is now able to work with 1Gb ethernet. References: http://www.micrel.com/_PDF/Ethernet/datasheets/KSZ9031RNX.pdf -> page 26 Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: micrel: Disable B_CAST on configAlexandre Messier2016-01-28-2/+21
| | | | | | | | | | | | | | | | | | | | Micrel PHYs KSZ8021/31 and KSZ8081 have a feature where MDIO address 0 is considered as a broadcast address; the PHY will respond even if it is not its configured (pinstrapped) address. This feature is enabled by default. The Linux kernel disables that feature at initialisation, but not before it probes the MDIO bus. This causes an issue, because a PHY at address 3 will be discovered at addresses 0 and 3, but will then only respond at address 3. Because Linux attaches the first PHY it discovers on 'eth0', it will attach the PHY from address 0, which will never answer again. Fix the issue by disabling the broadcast feature in U-Boot, before Linux is started. Signed-off-by: Alexandre Messier <amessier@tycoint.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: micrel: Configure KSZ9021/KSZ9031 skew from OFMarek Vasut2015-12-20-1/+145
| | | | | | | | | | | | | | | | Add code to process the KSZ9021/KSZ9031 OF props if they are present and configure skew registers based on the information from the OF. This code is only enabled if the DM support for ethernet is also enabled. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@opensource.altera.com> V2: - Implement struct ksz90x1_reg_field to describe the skew register fields more accurately. - Fix RXDV/TXEN skew register default value and offset.
* net: phy: micrel: disable NAND-tree for KSZ8051Sylvain Rochet2015-10-29-0/+29
| | | | | | | | | | | | | | | | | | NAND-tree is used to check wiring between MAC and PHY using NAND gates on the PHY side, hence the name. NAND-tree initial status is latched at reset by probing the IRQ pin. However some devices are sharing the PHY IRQ pin with other peripherals such as Atmel SAMA5D[34]x-EK boards when using the optional TM7000 display module, therefore they are switching the PHY in NAND-tree test mode depending on the current IRQ line status at reset. This patch ensure PHY is not in NAND-tree test mode only for the Micrel KSZ8051 PHY used by Atmel. There are other Micrel PHY affected but I doubt they are used on such weird hardware design. Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: micrel: add support for KSZ8021RNL & KSZ8031RNLSylvain Lemieux2015-10-29-0/+11
| | | | | | | This patch adds support for Micrel KSZ8021RNL & KSZ8031RNL. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: micrel: add support for KSZ8081MNXLuca Ellero2015-04-20-0/+11
| | | | | | | This patch adds a support for KSZ8081MNX in MII mode. Signed-off-by: Luca Ellero <luca.ellero@brickedbrain.com> Acked-by: Pavel Machek <pavel@denx.de>
* net: phy: micrel: add support for KSZ8895 switch in SMI modePhilippe De Muyter2015-01-30-0/+58
| | | | | | | | | | | | | | | | | | | This patch adds a phy driver for the Micrel KSZ8895 switch. As the SoC MAC is directly connected to the switch MAC the link to the switch is always up. But the KSZ8895 switch can be hardwired in three configuration modes : - not configurable with eventually an eeprom-stored configuration - configurable by the mdio/mdc connection (SMI protocol) - configurable by a SPI connection. In not configurable mode, the switch starts automatically, but in the other modes, it must be started programmatically, by writing 1 in configuration register 1. We only support the not configurable and mdio/mdc (aka SMI) modes here. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* net: phy: Cleanup drivers/net/phy/micrel.cPavel Machek2014-10-06-4/+3
| | | | | | | | | | | | | | | | Old saying says that more than three exclamation marks in a row are sign of mental disease. Cleanup micrel.c. Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Tom Rini <trini@ti.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Pavel Machek <pavel@denx.de> Cc: Joe Hershberger <joe.hershberger@gmail.com> Acked-by: Chin Liang See <clsee@altera.com>
* net: add function to read/write extended registers in Micrel PhyStefano Babic2013-11-22-0/+32
| | | | Signed-off-by: Stefano Babic <sbabic@denx.de>
* net: fix mask for phy Micrel KSZ9031Stefano Babic2013-11-22-1/+1
| | | | Signed-off-by: Stefano Babic <sbabic@denx.de>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-15/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* net: phy: supplement support for Micrel's KSZ9031SARTRE Leo2013-06-24-1/+35
| | | | | | Add function ksz9031_phy_extended_write and ksz9031_phy_extended_read Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>
* PHY: micrel.c: add support for KSZ9031David Andrey2013-06-24-27/+52
| | | | | | | | | | | | Add support for Micrel PHY KSZ9031 in phylib, including small rework for KSZ9021 to avoid code duplication Signed-off-by: David Andrey <david.andrey@netmodule.com> Cc: Troy Kisky <troy.kisky@boundarydevices.com> Cc: Joe Herschberger <joe.hershberger@gmail.com> Cc: Andy Fleming <afleming@freescale.com> Acked-by: Stefan Roese <sr@denx.de>
* net: phy: micrel: make ksz9021 phy accessibleTroy Kisky2012-07-11-2/+13
| | | | | | | | | | Micrel accidentally used the same part number for the KS8721 and KSZ9021. So, both cannot be in the same build of u-boot. Add a config option to handle this. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com>
* net: phy: add support for Micrel's KSZ9021Troy Kisky2012-02-27-0/+87
| | | | | | | | | | | Add the gigabit phy KSZ9021. Also, add function ksz9021_phy_extended_write /_read for access to the phys extended registers. The environment variable "disable_giga" can be used to disable 1000baseTx. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
* phy: add Micrel KS8721BL phy definitionVladimir Zapolskiy2011-12-20-0/+11
| | | | | | | | This adds support for the Micrel KS8721BL/SL PHY. The definition is taken from the correspondent datasheet. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
* phylib: Add a bunch of PHY drivers from tsecAndy Fleming2011-04-20-0/+40
The tsec driver had a bunch of PHY drivers already written. This converts them all into PHY Lib drivers, and serves as the first set of PHY drivers for PHY Lib. While doing that, cleaned up a number of magic numbers (though not all of them, as PHY vendors like to keep their numbers as magical as possible). Also, noticed that almost all of the vitesse/cicada PHYs had the same config/parse/startup functions, so those have been collapsed into one. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Detlev Zundel <dzu@denx.de>
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