u-boot.git/drivers/net/designware.c, branch v2014.04-rc2

net/designware: make driver compatible with data cache

2014-02-07T14:17:05Z

Up until now this driver only worked with data cache disabled. To make it work with enabled data cache following changes were required: * Flush Tx/Rx buffer descriptors their modification * Invalidate Tx/Rx buffer descriptors before reading its values * Flush cache for data passed from CPU to GMAC * Invalidate cache for data passed from GMAC to CPU 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 - 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: add explicit reset of {tx|rx}_currdescnum

2014-02-07T14:16:26Z

Driver "init" function might be called multiple times. On every "init" Tx/Rx buffer descriptors are initialized: "descs_init" -> "{tx|rx}_descs_init". In its turn those init functions set MAC's "{tx|rx}desclistaddr" to point on the first buffer descriptor in the list. So CPU to start operation from the first buffer descriptor as well after every "init" we have to reset "{tx|rx}_currdescnum". Cc: Joe Hershberger Cc: Vipin Kumar Cc: Stefan Roese Cc: Mischa Jonker Signed-off-by: Alexey Brodkin

net: designware: Respect "bus mode" register contents on SW reset

2013-11-22T22:50:54Z

"bus mode" register contains lots of fields and some of them don't expect to be written with 0 (zero). So since we're only interested in resetting MAC (which is done with setting the least significant bit of this register with "0") I believe it's better to modify only 1 bit of the register. Signed-off-by: Alexey Brodkin Acked-by: Vipin Kumar Patch: 277864

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/designware: Do not select MIIPORT for RGMII interface

2013-06-25T00:10:16Z

Do not select MIIPORT for RGMII interface Signed-off-by: Vipin Kumar Acked-by: Stefan Roese

net/designware: Consecutive writes to the same register to be avoided

2012-07-11T18:15:31Z

This commit is an add-on to f6c4191f. There are a few registers where consecutive writes to the same location should be avoided or have a delay. According to Synopsys, here is a list of the registers and bit(s) where consecutive writes should be avoided or a delay is required: DMA Registers: Register 0 Bit 7 Register 6 All bits except for 24, 16-13, 2-1. GMAC Registers: Registers 0-3 All bits Registers 6-7 All bits Register 10 All bits Register 11 All bits except for 5-6. Registers 16-47 All bits Register 48 All bits except for 18-16, 14. Register 448 Bit 4. Register 459 Bits 0-3. Signed-off-by: Dinh Nguyen Reviewed-by: Matthew Gerlach Acked-by: Amit Virdi

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

SPEAr: Add interface information in initialization

2012-07-07T12:07:40Z

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 Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

net: Fix remaining API interface breakage

2012-05-23T19:19:21Z

These are all the files which use the API incorrectly but did not get built using MAKEALL -a powerpc|arm. I have no compiler for them, but the remaining issues should be far less than without this patch. Any outstanding issues are left to the maintainers of boards that use these drivers. Signed-off-by: Joe Hershberger