Commit graph

7 commits

Author SHA1 Message Date
Philipp Tomsich
1deeecb6e4 sun8i_emac: Fix mdio read sequence
To send a parametrized command to the PHY over MDIO, we should write
the data first, the trigger the execution by the command register
write. Fix the access pattern in our MDIO write routine.
Apparently this doesn't really matter with the Realtek PHY on the
Pine64, but other PHYs (which require more setup) will choke on
the wrong order.
[Andre: add commit message]

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jagan Teki <jagan@openedev.com>
2016-11-28 15:10:31 -05:00
Masahiro Yamada
6e67f176bb Fix codying style broken by recent libfdt sync
Commit b02e4044ff ("libfdt: Bring in upstream stringlist
functions") broke codying style in some places especially
by inserting an extra whitespace before fdt_stringlist_count().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-10-24 08:04:42 -04:00
Simon Glass
b02e4044ff libfdt: Bring in upstream stringlist functions
These have now landed upstream. The naming is different and in one case the
function signature has changed. Update the code to match.

This applies the following upstream commits by
Thierry Reding <treding@nvidia.com> :

   604e61e fdt: Add functions to retrieve strings
   8702bd1 fdt: Add a function to get the index of a string
   2218387 fdt: Add a function to count strings

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-10-13 13:54:10 -06:00
Hans de Goede
4069437dfb net: sun8i_emac: Fix DMA alignment issues with the rx / tx buffers
This fixes the following CACHE warnings when using sun8i_emac:

=> dhcp
BOOTP broadcast 1
BOOTP broadcast 2
CACHE: Misaligned operation at range [7bf594a8, 7bf59628]
BOOTP broadcast 3
CACHE: Misaligned operation at range [7bf59c90, 7bf59e10]
CACHE: Misaligned operation at range [7bf5a478, 7bf5a5f8]
DHCP client bound to address 10.42.43.80 (1009 ms)

Note this commit also changes the max rx size from 2024 to 2044,
matching what the kernel driver uses.

Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Corentin LABBE <clabbe.montjoie@gmail.com>
Cc: Amit Singh Tomar <amittomer25@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2016-07-31 21:45:46 +02:00
Chen-Yu Tsai
a85ba87dbe net: sun8i_emac: Drop redundant and incorrect setting of syscon register
In sun8i_emac_board_setup, the driver partially configures the syscon
register for H3 EPHY. However, the settings are incomplete, and
completely unusable. The correct settings are later set in
sun8i_emac_set_syscon, but the incorrect CLK_SEL setting persists.

It is incorrect to use CLK_SEL to select 25 MHz, as the SoC does not
have a 25 MHz clock the EPHY can use.

This patch removes the setting of the syscon register in board_setup,
and also moves set_syscon above mdio_init. While mdio_init does not
access the PHY, it is better to have the PHY parameters setup before
the MDIO bus is registered.

Fixes: a29710c525 ("net: Add EMAC driver for H3/A83T/A64 SoCs.")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-07-26 21:56:03 +02:00
Chen-Yu Tsai
687284483c net: sun8i_emac: Do not configure AHB2 clock
The sun8i_emac driver erroneously configures the AHB2 clock when it
assumes it is configuring the AXI gates, which is not even documented
or ever appeared in either the WiP kernel driver or Allwinner's original
driver.

As a result, AHB2 clock mux is set to an invalid setting, making the
EPHY unusable.

Fixes: a29710c525 ("net: Add EMAC driver for H3/A83T/A64 SoCs.")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-07-26 21:56:02 +02:00
Amit Singh Tomar
a29710c525 net: Add EMAC driver for H3/A83T/A64 SoCs.
This patch add EMAC driver support for H3/A83T/A64 SoCs.
Tested on Pine64(A64-External PHY) and Orangepipc(H3-Internal PHY).

BIG Thanks to Andre for providing some of the DT code.

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-07-15 08:34:34 +02:00