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path: root/drivers/net/designware.h
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* net/designware: Make DMA burst length configurable and reduce by defaultIan Campbell2014-05-25-6/+6
| | | | | | | | | | | 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 <ijc@hellion.org.uk> Cc: Alexey Brodkin <abrodkin@synopsys.com>
* net/designware: reorder struct dw_eth_dev to pack more efficiently.Ian Campbell2014-05-25-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <ijc@hellion.org.uk> 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 <ijc@hellion.org.uk> Cc: Alexey Brodkin <abrodkin@synopsys.com> Tested-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Reviewed-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
* net/designware: align DMA buffer descriptors to D$ lineAlexey Brodkin2014-03-28-1/+1
| | | | | | | | | | | | | | | | 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 <abrodkin@synopsys.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Vipin Kumar <vipin.kumar@st.com> Cc: Stefan Roese <sr@denx.de> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Amit Virdi <amit.virdi@st.com> Cc: Sonic Zhang <sonic.zhang@analog.com>
* net/designware - switch driver to phylib usageAlexey Brodkin2014-02-07-16/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <joe.hershberger@ni.com> Cc: Vipin Kumar <vipin.kumar@st.com> Cc: Stefan Roese <sr@denx.de> Cc: Mischa Jonker <mjonker@synopsys.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Amit Virdi <amit.virdi@st.com> Cc: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
* net: designware: Fix alignment of buffer descriptorsAlexey Brodkin2013-11-22-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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 <abrodkin@synopsys.com> Patch: 277902
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* net: Multiple updates/enhancements to designware.cStefan Roese2012-07-07-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <sr@denx.de> Cc: Amit Virdi <amit.virdi@st.com> Cc: Vipin Kumar <vipin.kumar@st.com> Cc: Joe Hershberger <joe.hershberger@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@gmail.com>
* SPEAr: Add interface information in initializationVipin Kumar2012-07-07-0/+1
| | | | | | | | | | Few Designware peripheral registers need to be modified based on the ethernet interface selected by the board. This patch supports interface information in ethernet driver Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
* net/designware: Try configuring phy on each dw_eth_initVipin Kumar2012-04-04-0/+1
| | | | | | | | | | | | | Phy autonegotiation works only when the ethernet cable is plugged in. Since the phy was configured only at the init time, a plugged in cable was necessary to initialize the phy properly. This patch keeps a flag to check if the phy initialization has succeeded, and calls configure_phy routine at every init if this flag reports otherwise. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com>
* net/designware: Fix the max frame length sizeVipin KUMAR2012-04-04-1/+1
| | | | | | | | | The max frame length for normal descriptor can be 0x7FF i.e 2047. It was wrongly specified as 2048. Currently, the max descriptor length is around 1500, so redefining the mask to 1600 Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com>
* SPEAr : Network driver support addedVipin KUMAR2010-07-12-0/+264
Designware network driver support added. This is a Synopsys ethernet controller Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>