u-boot.git/drivers/net/designware.h, branch v2016.03

net/designware: add support of max-speed device tree property

2016-01-28T18:32:44Z

This property allows to specify fastest connection mode supported by the MAC (as opposed to features of the phy). There are situations when phy may handle faster modes than the MAC (or even it's particular implementation or even due to CPU being too slow). This property is a standard one in Linux kernel these days and some boards do already use it in their device tree descriptions. Signed-off-by: Alexey Brodkin Cc: Bin Meng Cc: Joe Hershberger Cc: Sonic Zhang cc: Simon Glass Acked-by: Joe Hershberger

dm: net: Adjust designware driver to support driver model

2015-04-18T17:11:37Z

Add driver model support to the designware driver. This reuses most of the existing code except for some duplication in the probe() method. Signed-off-by: Simon Glass Acked-by: Joe Hershberger

net: configure DWMAC DMA by default AXI burst length

2015-03-05T16:17:53Z

Board can define its own AXI burst length to improve DWMAC DMA performance. v2-changes: - Avoid write burst len register when the Macro is not defined. v3-changes: - Add axi_bus register member to struct eth_dma_regs. Signed-off-by: Sonic Zhang Acked-by: Joe Hershberger

net/designware: Make DMA burst length configurable and reduce by default

2014-05-25T15:23:58Z

The correct value for this setting can vary across SoCs and boards, so make it configurable. Also reduce the default value to 8, which is the same default as used in the Linux driver. Signed-off-by: Ian Campbell Cc: Alexey Brodkin

net/designware: reorder struct dw_eth_dev to pack more efficiently.

2014-05-25T15:23:48Z

On Thu, 2014-05-08 at 22:26 +0100, Ian Campbell wrote: > The {r,t}xbuffs fields also need to be aligned. Previously this was done > implicitly because they immediately followed the descriptor tables. Make this > explicit and also move to the head of the struct. Looks like I managed to not actually commit the move of the field to the head of the struct! v3.1 follows.... Ian. 8<------------ >From 2937ba01841887317f6792709ed57cb86b5fc0cd Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Thu, 1 May 2014 19:45:15 +0100 Subject: [PATCH] net/designware: reorder struct dw_eth_dev to pack more efficiently. The {tx,rx}_mac_descrtable fields are aligned to ARCH_DMA_MINALIGN, which could be 256 or even larger. That means there is a potentially huge hole in the struct before those fields, so move them to the front where they are better packed. Moving them to the front also helps ensure that so long as dw_eth_dev is properly aligned (which it is since "net/designware: ensure device private data is DMA aligned.") the {tx,rx}_mac_descrtable will be too, or at least avoids having to worry too much about compiler specifics. The {r,t}xbuffs fields also need to be aligned. Previously this was done implicitly because they immediately followed the descriptor tables. Make this explicit and also move to the head of the struct. Signed-off-by: Ian Campbell Cc: Alexey Brodkin Tested-by: Siarhei Siamashka Reviewed-by: Siarhei Siamashka

net/designware: align DMA buffer descriptors to D$ line

2014-03-28T19:06:30Z

It's important to have ability to flush/invalidate each DMA buffer descriptor individually to prevent incoherency of adjacent BDs. Signed-off-by: Alexey Brodkin Cc: Vineet Gupta Cc: Joe Hershberger Cc: Vipin Kumar Cc: Stefan Roese Cc: Shiraz Hashim Cc: Albert ARIBAUD Cc: Amit Virdi Cc: Sonic Zhang

net/designware - switch driver to phylib usage

2014-02-07T14:16:46Z

With this change driver will benefit from existing phylib and thus custom phy functionality implemented in the driver will go away: * Instantiation of the driver is now much shorter - 2 parameters instead of 4. * Simplified phy management/functoinality in driver is replaced with rich functionality of phylib. * Support of custom phy initialization is now done with existing "board_phy_config". Note that after this change some previously used config options (driver-specific PHY configuration) will be obsolete and they are simply substituted with similar options of phylib. For example: * CONFIG_DW_AUTONEG - no need in this one. Autonegotiation is enabled by default. * CONFIG_DW_SEARCH_PHY - if one wants to specify attached phy explicitly CONFIG_PHY_ADDR board config option has to be used, otherwise automatically the first discovered on MDIO bus phy will be used I believe there's no need now in "doc/README.designware_eth" because user only needs to instantiate the driver with "designware_initialize" whose prototype exists in "include/netdev.h". Cc: Joe Hershberger Cc: Vipin Kumar Cc: Stefan Roese Cc: Mischa Jonker Cc: Shiraz Hashim Cc: Albert ARIBAUD Cc: Amit Virdi Cc: Sonic Zhang Signed-off-by: Alexey Brodkin

net: designware: Fix alignment of buffer descriptors

2013-11-22T22:50:55Z

It's important that buffer descriptors are aligned in accordance to GMAC data bus width (32/64/128-bit). It's safe to align to 128-bit (16-bytes) for every bus width type. If buffer descriptor is improperly aligned GMAC discards lower bits of provided address and as a result reads from improper location that doesn't match expected fields. Commit ef76025a99247cdb8f927a2c9f15400678dfb599 "net: Multiple updates/enhancements to designware.c" introduced another structure member "link_printed" right before buffer descriptors while "padding" member was left untouched. This together with alignment of structure itself to 16-byte boundary forces buffer descriptoprs always to be 4-byte aligned that causes driver complete disfunction if GMAC bus width is 64 or 128-bit. Proposed change makes sure all buffer descriptors are 16-byte (128-bit) aligned. Signed-off-by: Alexey Brodkin Patch: 277902

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38Z

Signed-off-by: Wolfgang Denk [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini

net: Multiple updates/enhancements to designware.c

2012-07-07T12:07:42Z

This patch adds the following changes to designware ethernet driver found on the ST SPEAr SoC: - Don't init MAC & PHY upon startup. This causes a delay, waiting for the auto negotiation to complete. And we don't want this delay to always happen. Especially not on platforms where ethernet is not used at all (e.g. booting via flash). Instead postpone the MAC / PHY configuration to the stage, where ethernet is first used. - Add possibility for board specific PHY init code. This is needed for example on the X600 board, where the Vitesse PHY needs to be configured for GMII mode. This board specific PHY init is done via the function designware_board_phy_init(). And this driver now adds a weak default which can be overridden by board code. - Use common functions miiphy_speed() & miiphy_duplex() to read link status from PHY. - Print status and progress of auto negotiation. - Print link status (speed, dupex) upon first usage. Signed-off-by: Stefan Roese Cc: Amit Virdi Cc: Vipin Kumar Cc: Joe Hershberger Acked-by: Joe Hershberger