u-boot.git/drivers/net/macb.c, branch v2019.07

dm: net: macb: Implement link speed change callback

2019-06-01T18:33:17+00:00

At present the link speed change callback is a nop. According to
macb device tree bindings, an optional "tx_clk" is used to clock
the ethernet controller's TX_CLK under different link speed.

In 10/100 MII mode, transmit logic must be clocked from a free
running clock generated by the external PHY. In gigabit GMII mode,
the controller, not the external PHY, must generate the 125 MHz
transmit clock towards the PHY.

Signed-off-by: Bin Meng 
Reviewed-by: Lukas Auer 
Tested-by: Lukas Auer 
Acked-by: Joe Hershberger

dm: net: macb: Update macb_linkspd_cb() signature

2019-06-01T18:33:17+00:00

This updates DM version macb_linkspd_cb() signature for future
expansion, eg: adding an implementation for link speed changes.

Signed-off-by: Bin Meng 
Reviewed-by: Lukas Auer 
Acked-by: Joe Hershberger

net: macb: Add small delay after link establishment

2019-04-09T06:28:50+00:00

I've noticed that the first ethernet packet after PHY link establishment
is not tranferred correctly most of the time on my AT91SAM9G25 board.
Here I usually see a timeout of a few seconds, which is quite
annoying.

Adding a small delay (10ms in this case) after the link establishment
helps to solve this problem. With this patch applied, this timeout
on the first packet is not seen any more.

Signed-off-by: Stefan Roese 
Cc: Wenyou Yang 
Cc: Eugen Hristev 
Cc: Joe Hershberger 
Acked-by: Joe Hershberger

net: macb: Fix GEM hardware detection

2019-02-27T01:12:33+00:00

Fix MID bit field check to correctly identify all GEM hardwares.

The check is updated as per macb driver in Linux location:
/drivers/net/ethernet/cadence/macb_main.c:259

Signed-off-by: Atish Patra 
Signed-off-by: Anup Patel 
Reviewed-by: Alexander Graf 
Reviewed-by: Lukas Auer 
Acked-by: Joe Hershberger

net: macb: Fix clk API usage for RISC-V systems

2019-02-27T01:12:33+00:00

Don't fail in macb_enable_clk() if clk_enable() returns
-ENOSYS because we get -ENOSYS for fixed-rate clocks.

Signed-off-by: Anup Patel 
Reviewed-by: Bin Meng

net: macb: fix mapping of registers

2019-01-24T17:35:29+00:00

Some architectures (MIPS) needs mapping to access IOMEM.
Fix that.

Fixes: f1dcc19b213d ("net: macb: Convert to driver model")

Signed-off-by: Ramon Fried 
Acked-by: Joe Hershberger

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

net: macb: remove superfluous logical constraint

2018-03-22T20:05:32+00:00

In

	if (a > =0) {...}
	else (a < 0) {...}

the second logical constraint is superfluous.

Signed-off-by: Heinrich Schuchardt 
Acked-by: Joe Hershberger

net: macb: Add support for Xilinx Zynq SoC

2018-01-15T18:05:14+00:00

Although Xilinx Zynq SoC was using MACB similar hardware. However,
U-boot MACB driver was not supporting Xilinx Zynq SoC. This patch is
to add support for the Xilinx Zynq SoC to the existing MACB network
driver.

This patch is to add Zynq GEM DMA Config, provide callback
function for different linkspeed for case of using Xilinx Zynq
Programmable Logic as GMII to RGMII converter.

This patch convert the return value to use error codes.

Signed-off-by: Wilson Lee 
Cc: Chen Yee Chew 
Cc: Keng Soon Cheah 
Cc: Joe Hershberger 
Cc: Wenyou Yang 
Acked-by: Joe Hershberger

net: macb: Fix GMAC not work when enable DM_ETH

2017-06-02T19:44:19+00:00

Always search the PHY to determine the macb->phy_addr before using
the PHY to fix "No PHY present" error.

Fix the wrong test of the GMAC's phy interface mode, it should be
PHY_INTERFACE_MODE_RGMII.

Signed-off-by: Wenyou Yang 
Reviewed-by: Simon Glass 
Acked-by: Joe Hershberger