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| * | drivers/net/phy: introduce phy_set_supported()Alexey Brodkin2016-01-28-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This new function will allow MAC drivers to override supported capabilities of the phy. It is required when MAC cannot handle all speeds supported by phy. For example phy supports up-to 1Gb connections while MAC may only work in modes up to 100 or even 10 Mbit/sec. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: phy: genphy: Allow overwriting featuresSascha Hauer2016-01-28-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_set_phy_supported allows overwiting hardware capabilities of a phy with values from the devicetree. This does not work with the genphy driver though because the genphys config_init function will overwrite all values adjusted by of_set_phy_supported. Fix this by initialising the genphy features in the phy_driver struct and in config_init just limit the features to the ones the hardware can actually support. The resulting features are a subset of the devicetree specified features and the hardware features. This is a copy of the patch from Linux kernel, see http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c242a47238fa2a6a54af8a16e62b54e6e031d4bc Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: phy: ensure Gigabit features are masked off if requestedFlorian Fainelli2016-01-28-18/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a Gigabit PHY device is connected to a 10/100Mbits capable Ethernet MAC, the driver will restrict the phydev->supported modes to mask off Gigabit. If the Gigabit PHY comes out of reset with the Gigabit features set by default in MII_CTRL1000, it will keep advertising these feature, so by the time we call genphy_config_advert(), the condition on phydev->supported having the Gigabit features on is false, and we do not update MII_CTRL1000 with updated values, and we keep advertising Gigabit features, eventually configuring the PHY for Gigabit whilst the Ethernet MAC does not support that. This patches fixes the problem by ensuring that the Gigabit feature bits are always cleared in MII_CTRL1000, if the PHY happens to be a Gigabit PHY, and then, if Gigabit features are supported, setting those and updating MII_CTRL1000 accordingly. This is a copy of patch from Linux kernel, see http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5273e3a5ca94fbeb8e07d31203069220d5e682aa Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: Use priv->tbiaddr to initialize TBI PHY addressBin Meng2016-01-28-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new member 'tbiaddr' to tsec_private struct. For non-DM driver, it is initialized as CONFIG_SYS_TBIPA_VALUE, but for DM driver, we can get this from device tree. Update the bindings doc as well. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: Add driver model ethernet supportBin Meng2016-01-28-0/+186
| | | | | | | | | | | | | | | | | | | | | | | | This adds driver model support to Freescale TSEC ethernet driver. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: Use tsec_private pointer as the parameter for internal routinesBin Meng2016-01-28-12/+11
| | | | | | | | | | | | | | | | | | | | | | | | For internal routines like redundant_init(), startup_tsec() and init_phy(), change to use tsec_private pointer as the parameter. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: Adjust orders to avoid forward declaration of tsec_send()Bin Meng2016-01-28-105/+103
| | | | | | | | | | | | | | | | | | | | | | | | Adjust static functions in a proper order so that forward declaration of tsec_send() can be avoided. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: Move rxbd and txbd to struct tsec_privateBin Meng2016-01-28-37/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | rxbd and txbd are declared static with 8 byte alignment requirement, but they can be put into struct tsec_private as well and are natually aligned to 8 byte. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: Move rx_idx and tx_idx to struct tsec_privateBin Meng2016-01-28-28/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | At present rx_idx and tx_idx are declared as static variables in the driver codes. To support multiple interfaces, move it to struct tsec_private. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: tsec: fsl_mdio: Fix several cosmetic issuesBin Meng2016-01-28-29/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up the tsec and fsl_mdio driver codes a little bit, by: - Fix misuse of tab and space here and there - Use correct multi-line comment format - Replace license identifier to GPL-2.0+ Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | drivers: net: vsc9953: Add LAG supportCodrin Ciubotariu2016-01-28-1/+330
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | You can now configure LAG on VSC9953's ports using the command: ethsw [port <port_no>] aggr {[help] | show | <lag_group_no>} A port must belong to a single LAG. By default, a port belongs to a LAG equal to the port's number. For each frame, a hash will be calculated based on Source/Destination MAC addresses, Source/Destination IP(v4/v6) addresses, Source/Destination ports. This hash will be used to select a single egress port from LAG. This also assures that frames from the same flow will always have the same egress port. Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | drivers: net: vsc9953: Fix FDB aging timeCodrin Ciubotariu2016-01-28-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | By default, the aging period is set to 0, so the dynamic FDB entries are never removed. This patch sets the aging time to 300 seconds. Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
| * | net: phy: do not read configuration register on resetStefan Agner2016-01-28-9/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When doing a software reset, the reset flag should be written without other bits set. Writing the current state will lead to restoring the state of the PHY (e.g. Powerdown), which is not what is expected from a software reset. Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Michael Welling <mwelling@ieee.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* | | Merge branch 'master' of git://git.denx.de/u-boot-x86Tom Rini2016-01-28-0/+50
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| * | | misc: Add simple driver to enable the legacy UART on Winbond Super IO chipsStefan Roese2016-01-28-0/+50
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | On most x86 boards, the legacy serial ports (io address 0x3f8/0x2f8) are provided by a superio chip connected to the LPC bus. We must program the superio chip so that serial ports are available for us. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* | | Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriqTom Rini2016-01-27-23/+316
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| * | | spi: fsl_qspi: Fix qspi_op_rdsr memcpy issueGong Qianyu2016-01-27-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In current driver, we always copy 4 bytes to the dest memory. Actually the dest memory may be shorter than 4 bytes. Add an argument to indicate the dest memory length. Avoid writing memory outside of the bounds. Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | spi: fsl_qspi: Fix qspi_op_rdid memcpy issueGong Qianyu2016-01-27-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In current driver everytime we memcpy 4 bytes to the dest memory regardless of the remaining length. This patch adds checking the remaining length before memcpy. If the length is shorter than 4 bytes, memcpy the actual length of data to the dest memory. Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | spi: fsl_qspi: fix compile warning for 64-bit platformGong Qianyu2016-01-27-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following compile warning: drivers/spi/fsl_qspi.c: In function 'fsl_qspi_probe': drivers/spi/fsl_qspi.c:937:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] priv->regs = (struct fsl_qspi_regs *)plat->reg_base; ^ Just make the cast explicit. Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | mmc: fsl_esdhc: set Abort command type for CMD12Yangbo Lu2016-01-27-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to SD spec, CMD12, CMD52 for writing I/O abort in CCCR need to be set an Abort command type when they are sent. So, we remove all chip-specific #ifdefs and make it available for all platforms. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | mmc: fsl_esdhc: increase data transaction timeout to 500msYangbo Lu2016-01-27-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MMC spec says "It is strongly recommended for hosts to implement more than 500ms timeout value even if the card indicates the 250ms maximum busy length." Even the previous value of 300ms is known to be insufficient for some cards. So, increase the timeout to 500ms. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: fsl-mc: Remove portal id hard-codingPrabhakar Kushwaha2016-01-27-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Management Complex firmware 9.0 has fixed the issue of dprc_destroy_container i.e. the used portal is not return to the free pool. Which was resulting in error ethernet driver want to use this portal via either DPL or dynamically in Linux. Hard-coding of portal id is removed. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: ldpaa: Add debug info of printing DPMAC statsPrabhakar Kushwaha2016-01-27-0/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add debug information prints to provide DPMAC statistics - Number of bytes received - Number of received and discard frames - Number of bytes transferred - Number of frames transferred etc. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: ldpaa: Increase num of buffers for a poolPrabhakar Kushwaha2016-01-27-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Management Complex FW 9.0 set the hardware depletion to be 20 buffers in order to support multiple pools in DPNI. This requires driver to fill the pool with at least 21 to be able to receive frames. So, Increase number of buffers for a pool. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: ldpaa: Report back only error frames for txPrabhakar Kushwaha2016-01-27-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Management Complex FW 9.0 puts a new requirement to provide Tx confirmation and error queue configuration by calling dpni_set_tx_conf API. Configure report of only error frames for a tx frame. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: fsl-mc: Prepare extended cfg for DPNI createPrabhakar Kushwaha2016-01-27-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Management Complex FW 9.0 puts a new requirement to prepare extended parameters which should be provided as input in dpni_create. extended parameters includes traffic class and IP reassembly configurations. So prepare extended parameters with default "0" as input for dpni_create. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: fsl-mc: flib changes for MC FW 9.0.0Prabhakar Kushwaha2016-01-27-3/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MC firmware version 9.0.0 contains - Support of new APIs - Update in existing APIs - Change in Major and minor version of DPAA2 objects This patch contains modifications in FLIB files to support new MC firmware version. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver: net: fsl-mc: Add version check for MC objectsPrabhakar Kushwaha2016-01-27-1/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check and compare version of management complex's object with the version supported by Freescale ldpaa2 ethernet driver. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | drivers: net: fsl_mc: Compare pointer value qbman_swp_mc_startPratiyush Mohan Srivastava2016-01-25-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current code compares the return pointer of function qbman_cena_write_start with NULL. Instead the value of the return pointer should be compared. Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@freescale.com> Acked-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | drivers/ddr/fsl: fsl_ddr_sdram_size remove unused controllersEd Swarthout2016-01-25-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following commit 61bd2f75, exclude unused DDR controller from calculating RAM size for SPL boot. Signed-off-by: Ed Swarthout <Ed.Swarthout@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | driver/ddr/fsl: Add workaround for A009663Shengzhou Liu2016-01-25-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Erratum A-009663 workaround requires to set DDR_INTERVAL[BSTOPRE] to 0 before setting DDR_SDRAM_CFG[MEM_EN] and set DDR_INTERVAL[BSTOPRE] to the desired value after DDR initialization has completed. When DDR controller is configured to operate in auto-precharge mode(DDR_INTERVAL[BSTOPRE]=0), this workaround is not needed. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
| * | | fsl/ddr: Add workaround for ERRATUM_A009942Shengzhou Liu2016-01-25-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During the receive data training, the DDRC may complete on a non-optimal setting that could lead to data corruption or initialization failure. Workaround: before setting MEM_EN, set DEBUG_29 register with specific value for different data rates. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
* | | | net: xilinx_ll_temac: Fix string overflowRicardo Ribalda Delgado2016-01-27-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Size of this snprintf "lltemac.%lx" is bigger than 16 characters. Replacing it with "ll_tem.%lx" Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
* | | | ppc: xilinx-ppc4xx: Port to DM serialRicardo Ribalda Delgado2016-01-27-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xilinx_uartlite has been ported to DM, this patch makes the xilinx-ppc405-generic and the xilinx-ppc440-generic boards use the new DM driver. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
* | | | mmc: zynq_sdhci: Added qurik to disable high speedSiva Durga Prasad Paladugu2016-01-27-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add quirk to disable high speed incase the high speed was broken.This solves the issue where the the controller is used in High Speed Mode and the the hold time requirement for the JEDEC/MMC 4.41 specification is NOT met. This timing issue is not on all boards and hence provided config option to enable it when required. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Emil Lenchak <emill@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | mmc: sdhci: Clear high speed if not supportedSiva Durga Prasad Paladugu2016-01-27-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clear high speed bit if it was not supported by the driver. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Emil Lenchak <emill@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | sdhci: zynq: Remove hardcoded value zero as min frequencySiva Durga Prasad Paladugu2016-01-27-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove hardcoded value zero as min frequency and use config option CONFIG_ZYNQ_SDHCI_MIN_FREQ defined in board config Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | net: zynq: Change MDC setup for arm64Michal Simek2016-01-27-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MDC setting depends on pclk input clocks which varies across SoC. This driver is used by xilinx zynq and zynqmp SOC. Input clock frequence on silicon is 125MHz where divider 64 put frequency below 2.5MHz requires by spec (125/64=1.95). Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | net: phy: ti: Enable automatic crossover modeMichal Simek2016-01-27-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable automatic crossover cable detection. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* | | | serial: zynq: Fix address reading from DMMichal Simek2016-01-27-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use dev_get_addr() instead of reading reg base directly in the driver. Core function is also more robust. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | serial: zynq: Extend compatible string listMichal Simek2016-01-27-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ZynqMP is using updated core with cdns,uart-r1p12 compatible string. Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | fpga: xilinx: Check for substring in device ID validationSiva Durga Prasad Paladugu2016-01-27-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check for substrings in deviceID validation check so that it can support xa bitstreams also. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | net: emaclite: Move emaclite to KconfigMichal Simek2016-01-27-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add PHYLIB and MII dependencies and enable it by default for Microblaze. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* | | | net: emaclite: Let core to handle received packetMichal Simek2016-01-27-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | Pass pointer to core to handle packet. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | net: emaclite: Rename start and stop functionsMichal Simek2016-01-27-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | Rename start and stop functions to align with DM functions names. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | net: emaclite: Move driver to DMMichal Simek2016-01-27-68/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Move driver to DM. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* | | | net: emaclite: Use indirect access in emaclite_recvMichal Simek2016-01-27-52/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When IP is configured with pong buffers, IP is receiving packets to ping and then to pong buffer and than ping again. The original logic in the driver remains there that when ping buffer is free, pong buffer is checked too and return if both are free. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | | | net: emaclite: Use indirect reg access in sendMichal Simek2016-01-27-30/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original logic in the driver was exchanging buffers which are used for sending packet and tx_ping and tx_pong buffers were exchanged all the time to ensure that IP has enough time to send the packet out. Based on this "feature" send function was using nextbuffertouse variable to save which buffer should be used. Before this algorithm was called driver checked that there is free buffer available. This checking remains in the driver but driver tries to use tx_ping first if available. If not, tx_pong buffer is used instead. To reach this code the original condition is met that at least one of the buffer should be available. Testing doesn't show any performance drop when this patch is applied. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* | | | net: emaclite: Remove XEL_TSR_XMIT_ACTIVE_MASK flagMichal Simek2016-01-27-13/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This flag is not documented anywhere in the latest documentation that's why this patch removes it. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* | | | net: emaclite: Fix logic around available TX buffersMichal Simek2016-01-27-16/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify logic how to find out if there is free TX buffer. Both buffers are checked all the time that's why logic around order can be removed. Also add check when only one buffer is available. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
generated by cgit v1.1 at 2024-10-20 22:20:46 +0000