linux.git/drivers/net/phy/realtek.c, branch v4.18

net: phy: realtek: add suspend/resume callbacks for RTL8211B

2018-05-29T03:01:56+00:00

Add RTL8211B suspend / resume callbacks.

Signed-off-by: Heiner Kallweit 
Signed-off-by: David S. Miller

net: phy: realtek: Use the dummy stubs for MMD register access for rtl8211b

2018-03-22T15:41:07+00:00

The Ethernet on mpc8315erdb is broken since commit b6b5e8a69118
("gianfar: Disable EEE autoneg by default"). The reason is that
even though the rtl8211b doesn't support the MMD extended registers
access, it does return some random values if we trying to access
the MMD register via indirect method. This makes it seem that the
EEE is supported by this phy device. And the subsequent writing to
the MMD registers does cause the phy malfunction. So use the dummy
stubs for the MMD register access to fix this issue.

Fixes: b6b5e8a69118 ("gianfar: Disable EEE autoneg by default")
Signed-off-by: Kevin Hao 
Signed-off-by: David S. Miller

phy: realtek: use new helpers for paged register access

2018-01-16T18:56:33+00:00

Make use of the new helpers for paged register access.

Signed-off-by: Heiner Kallweit 
Signed-off-by: David S. Miller

net: phy: realtek: add utility functions to read/write page addresses

2017-12-03T14:38:17+00:00

Realtek PHYs implement the concept of so-called "extension pages". The
reason for this is probably because these PHYs expose more registers
than available in the standard address range.
After all read/write operations on such a page are done the driver
should switch back to page 0 where the standard MII registers (such as
MII_BMCR) are available.

When referring to such a register the datasheets of RTL8211E and
RTL8211F always specify:
- the page / "ext. page" which has to be written to RTL821x_PAGE_SELECT
- an address (sometimes also called reg)

These new utility functions make the existing code easier to read since
it removes some duplication (switching back to page 0 is done within the
new helpers for example).

No functional changes are intended.

Signed-off-by: Martin Blumenstingl 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: realtek: use the same indentation for all #defines

2017-12-03T14:38:17+00:00

This simply makes the code easier to read. No functional changes.

Signed-off-by: Martin Blumenstingl 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: realtek: group all register bit #defines for RTL821x_INER

2017-12-03T14:38:17+00:00

This simply moves all register bit #defines which describe the (PHY
specific) bits in the RTL821x_INER right below the RTL821x_INER register
definition. This makes it easier to spot which registers and bits belong
together.
No functional changes.

Signed-off-by: Martin Blumenstingl 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: realtek: rename RTL821x_INER_INIT to RTL8211B_INER_INIT

2017-12-03T14:38:17+00:00

This macro is only used by the RTL8211B code. RTL8211E and RTL8211F both
use other bits to initialize the RTL821x_INER register.
No functional changes.

Signed-off-by: Martin Blumenstingl 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: realtek: use the BIT and GENMASK macros

2017-12-03T14:38:16+00:00

This makes it easier to compare the #defines with the datasheets.
No functional changes.

Signed-off-by: Martin Blumenstingl 
Reviewed-by: Andrew Lunn 
Signed-off-by: David S. Miller

net: phy: remove generic settings for callbacks config_aneg and read_status from drivers

2017-12-01T20:42:21+00:00

Remove generic settings for callbacks config_aneg and read_status
from drivers.

Signed-off-by: Heiner Kallweit 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: phy: realtek: fix RTL8211F interrupt mode

2017-11-14T12:33:50+00:00

After commit b94d22d94ad22 "ARM64: dts: meson-gx: add external PHY
interrupt on some platforms" ethernet stopped working on my Odroid-C2
which has a RTL8211F phy.

It turned out that no interrupts were triggered. Further analysis
showed the register INER can't be altered on page 0.
Because register INSR needs to be accessed via page 0xa43 I assumed
that register INER needs to be accessed via some page too.
Some brute force check resulted in page 0xa42 being the right one.

With this patch the phy is working properly in interrupt mode.

Fixes: 3447cf2e9a11 ("net/phy: Add support for Realtek RTL8211F")
Signed-off-by: Heiner Kallweit 
Tested-by: Jerome Brunet 
Signed-off-by: David S. Miller