linux.git/drivers/net/phy/swphy.c, branch v5.3 Linux kernel source tree net: phy: improve auto-neg emulation in swphy 2019-02-25T06:28:15+00:00 Heiner Kallweit hkallweit1@gmail.com 2019-02-24T16:41:47+00:00 726097d6d6d8e928c62f459305d74856f7cab155 Auto-neg emulation currently doesn't set bit BMCR_ANENABLE in BMCR, add this. Users will ignore speed and duplex settings in BMCR because we're emulating auto-neg, therefore we can remove related code. See also following discussion [0]. [0] https://marc.info/?t=155041784900002&r=1&w=2 Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> 
Auto-neg emulation currently doesn't set bit BMCR_ANENABLE in BMCR,
add this. Users will ignore speed and duplex settings in BMCR because
we're emulating auto-neg, therefore we can remove related code.
See also following discussion [0].

[0] https://marc.info/?t=155041784900002&r=1&w=2

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: phy: Convert some PHY and MDIO driver files to SPDX headers 2019-01-23T04:53:08+00:00 Andrew Lunn andrew@lunn.ch 2019-01-21T18:05:50+00:00 a2443fd1a54d6ae787157794a2920dd61f50f7f1 Where the license text and the MODULE_LICENSE() value agree, convert to using an SPDX header, removing the license text. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> 
Where the license text and the MODULE_LICENSE() value agree, convert
to using an SPDX header, removing the license text.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
phy: generate swphy registers on the fly 2016-06-27T14:40:57+00:00 Russell King rmk+kernel@arm.linux.org.uk 2016-06-23T13:50:20+00:00 37688e3f53c327523caeccdb1ffb3830b4aea9a7 Generate software phy registers as and when requested, rather than duplicating the state in fixed_phy. This allows us to eliminate the duplicate storage of of the same data, which is only different in format. As fixed_phy_update_regs() no longer updates register state, rename it to fixed_phy_update(). Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> 
Generate software phy registers as and when requested, rather than
duplicating the state in fixed_phy.  This allows us to eliminate
the duplicate storage of of the same data, which is only different
in format.

As fixed_phy_update_regs() no longer updates register state, rename
it to fixed_phy_update().

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
phy: separate swphy state validation from register generation 2016-06-27T14:40:57+00:00 Russell King rmk+kernel@arm.linux.org.uk 2016-06-23T13:50:15+00:00 68888ce075a5e77f0df659b128a7cb7c597a73cb Separate out the generation of MII registers from the state validation. This allows us to simplify the error handing in fixed_phy() by allowing earlier error detection. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> 
Separate out the generation of MII registers from the state validation.
This allows us to simplify the error handing in fixed_phy() by allowing
earlier error detection.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
phy: convert swphy register generation to tabular form 2016-06-27T14:40:57+00:00 Russell King rmk+kernel@arm.linux.org.uk 2016-06-23T13:50:10+00:00 0629bf17eaab9330bef427bdf4a3985c2d8972af Convert the swphy register generation to tabular form which allows us to eliminate multiple switch() statements. This results in a smaller object code size, more efficient, and easier to add support for faster speeds. Before: Idx Name Size VMA LMA File off Algn 0 .text 00000164 00000000 00000000 00000034 2**2 text data bss dec hex filename 388 0 0 388 184 swphy.o After: Idx Name Size VMA LMA File off Algn 0 .text 000000fc 00000000 00000000 00000034 2**2 5 .rodata 00000028 00000000 00000000 00000138 2**2 text data bss dec hex filename 324 0 0 324 144 swphy.o Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> 
Convert the swphy register generation to tabular form which allows us
to eliminate multiple switch() statements.  This results in a smaller
object code size, more efficient, and easier to add support for faster
speeds.

Before:

Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00000164  00000000  00000000  00000034  2**2

   text    data     bss     dec     hex filename
    388       0       0     388     184 swphy.o

After:

Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         000000fc  00000000  00000000  00000034  2**2
  5 .rodata       00000028  00000000  00000000  00000138  2**2

   text    data     bss     dec     hex filename
    324       0       0     324     144 swphy.o

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
phy: move fixed_phy MII register generation to a library 2016-06-27T14:40:57+00:00 Russell King rmk+kernel@arm.linux.org.uk 2016-06-23T13:50:05+00:00 5ae68b0ce134f9cadae2668da82d5f9a77523314 Move the fixed_phy MII register generation to a library to allow other software phy implementations to use this code. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> 
Move the fixed_phy MII register generation to a library to allow other
software phy implementations to use this code.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>