summaryrefslogtreecommitdiff
path: root/drivers/mmc/Kconfig
AgeCommit message (Collapse)Author
2020-08-25mmc: Add MMC controller driver for OcteonTX / TX2Suneel Garapati
Adds support for MMC controllers found on OcteonTX or OcteonTX2 SoC platforms. Signed-off-by: Aaron Williams <awilliams@marvell.com> Signed-off-by: Suneel Garapati <sgarapati@marvell.com> Cc: Peng Fan <peng.fan@nxp.com>
2020-08-20xilinx: kconfig: Change Kconfig dependencies for Xilinx driversMichal Simek
Zynq/ZynqMP/Versal IPs should be possible to called also from Microblaze in PL and vice versa. That's why change dependencies and do not limit enabling just for some platforms. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2020-07-29mmc: add nexell driverStefan Bosch
Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01: - driver changed to DM. - pinctrl-driver/dt is used now instead of configuring the mmc I/O-pins in the mmc-driver. - nexell_dwmmc_ofdata_to_platdata() reworked, i.e. valid default values are used now (where possible) and the appropriate if-blocks have been removed. - new dt-property "mmcboost" is used now instead of "CONFIG_BOOST_MMC" which was not defined anywhere. Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
2020-06-30kconfig: mmc: move pxa_mmc_generic to kconfigMarcel Ziswiler
Move CONFIG_PXA_MMC_GENERIC to Kconfig. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-06-26Convert CONFIG_ARM_PL180_MMCI to KconfigTom Rini
This converts the following to Kconfig: CONFIG_ARM_PL180_MMCI Signed-off-by: Tom Rini <trini@konsulko.com>
2020-06-15mmc: fsl_esdhc: workaround for hardware 3.3v IO reliability issueYangbo Lu
When eSDHC operates at 3.3v, damage can accumulate in an internal level shifter at a higher than expected rate. The faster the interface runs, the more damage accumulates. This issue now is found on LX2160A eSDHC1 for only SD card. The hardware workaround is recommended to use an on-board level shifter that is 1.8v on SoC side and 3.3v on SD card side. For boards without hardware workaround, this option could be enabled, ensuring 1.8v IO voltage and disabling eSDHC if no card. This option assumes no hotplug, and u-boot has to make all the way to to linux to use 1.8v UHS-I speed mode if has card. If you do not want the workaround for better user experience, of course you can choose to not select it running eSDHC in unsafe mode. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Acked-by: Peng Fan <peng.fan@nxp.com>
2020-05-15rename symbol: CONFIG_TEGRA -> CONFIG_ARCH_TEGRATrevor Woerner
Have this symbol follow the pattern of all other such symbols. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-04-22mmc: tmio: sdhi: Use bounce buffer to avoid DMA limitationsMarek Vasut
The R-Car SDHI DMA controller has various restrictions. To work around those restrictions without falling back to PIO, implement bounce buffer with custom alignment check function which tests for those limitations. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com>
2020-03-09mmc: ca_dw_mmc: add DesignWare based DM support for CAxxxx SoCsArthur Li
Initial DesignWare based DM support for Cortina Access CAxxxx SoCs. Signed-off-by: Arthur Li <arthur.li@cortina-access.com> Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
2020-01-16mmc: config help typo fixJoel Johnson
Fix typo in description of MMC_QUIRKS config option. Signed-off-by: Joel Johnson <mrjoel@lixil.net>
2020-01-16Drop CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK usageYangbo Lu
The eSDHC reference clocks should be provided by speed.c in arch/. And we do not need CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK option to select which clock to use. Because we can make the driver to select the periperhal clock which is better (provides higher frequency) automatically if its value is provided by speed.c. This patch is to drop this option and make driver to select clock automatically. Also fix peripheral clock calculation issue in fsl_lsch2_speed.c/fsl_lsch3_speed.c. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-01-14mmc: fsl_esdhc: add compatible for fsl, imxrt-usdhcGiulio Benetti
Add compatible "fsl,imxrt-usdhc" to make mmc working on i.MXRT platforms with CONFIG_DM_MMC=y. Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
2019-10-25mmc: mtk-sd: add support for MediaTek MT7620/MT7628 SoCsWeijie Gao
This patch adds mmc support for MediaTek MT7620/MT7628 SoCs. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-14Merge tag 'mmc-10-10-2019' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-mmc - Add sdhci driver for Broadcom iProc platform - Add a driver callback for power-cycle for mmc - Implement host_power_cycle callback for stm32_sdmmc2 - spl: dm_mmc: Initialize only the required mmc device
2019-10-10drivers: mmc: Add sdhci driver for Broadcom iProc platformArun Parameswaran
Add SDHCI driver for iProc family of Broadcom devices. Signed-off-by: Corneliu Doban <corneliu.doban@broadcom.com> Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com> Signed-off-by: Pavithra Ravi <pavithra.ravi@broadcom.com> Signed-off-by: Bharat Kumar Reddy Gooty <bharat.gooty@broadcom.com> Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com> Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com>
2019-10-08mmc: sdhci: Move ZYNQ_HISPD_BROKEN to KconfigSiva Durga Prasad Paladugu
This patch moves CONFIG_ZYNQ_HISPD_BROKEN to Kconfig Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-09-12mmc: Kconfig: Add FSL_ESDHC_USE_PERIPHERAL_CLK optionYinbo Zhu
NXP fsl_esdhc controller supports two reference clocks: platform clock and peripheral clock Peripheral clock can provide higher clock frequency which is required to be used for tuning of SD UHS mode and eMMC HS200/HS400 modes. Peripheral clock is enabled by default by defining config option FSL_ESDHC_USE_PERIPHERAL_CLK if eMMC HS200/HS400 modes are supported. Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2019-09-05mmc: Add Aspeed SD controller driverEddie James
Add support for the Aspeed SD host controller engine. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Cédric Le Goater <clg@kaod.org>
2019-08-23Convert CONFIG_FSL_USDHC to KconfigAdam Ford
This converts the following to Kconfig: CONFIG_FSL_USDHC Signed-off-by: Adam Ford <aford173@gmail.com> [trini: Add IMX8M, TARGET_S32V234EVB to FSL_USDHC list] Signed-off-by: Tom Rini <trini@konsulko.com>
2019-08-09mmc: Move tegra loopback disable option to be under tegraTrent Piepho
This is a configuration option specific to the tegra controller. Doing it this way makes it show up directly under the tegra controller option, indented one level, as "Disable external clock loopback". The way it is now, it shows up at the end of the controller list, not indented, as if it's some kind of generic MMC configuration option. Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Tom Warren <twarren@nvidia.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2019-08-09mmc: Select SPL_HS200_SUPPORT if SPL_HS400_SUPPORT is selectedFaiz Abbas
Select SPL_HS200_SUPPORT if SPL_HS400_SUPPORT is selected as is being done for the U-boot case. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
2019-07-17mmc: am654_sdhci: Add Support for PHYFaiz Abbas
Add support in the driver for handling phy specific registers. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-17arm64: dts: k3: Sync sdhci0 node from kernel and change driver nameFaiz Abbas
Sync the sdhci0 node from kernel. This changes the compatible that is required to be there in the driver. Change the same for the SD card node which is not yet supported in kernel. This also syncs the main_pmx0 node as a side effect. Also change the name of the driver to match the compatible in kernel. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-15mmc: support hs400 enhanced strobe modePeng Fan
eMMC 5.1+ supports HS400 Enhances Strobe mode without the need for tuning procedure. The flow is as following: - set HS_TIMIMG (Highspeed) - Host change freq to <= 52Mhz - set the bus width to Enhanced strobe and DDR8Bit(CMD6), EXT_CSD[183] = 0x86 instead of 0x80 - set HS_TIMING to 0x3 (HS400) - Host change freq to <= 200Mhz - Host select HS400 enhanced strobe complete Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-07-15mmc: mmc_spi: Re-write driver using DM frameworkBhargav Shah
This patch rewrites MMC SPI driver using U-Boot DM framework and get it's working on SiFive Unleashed board. Signed-off-by: Bhargav Shah <bhargavshah1988@gmail.com> Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-13spl: Move SPL_MMC_TINY option to appear under SPL menuEzequiel Garcia
The SPL_MMC_TINY implements feature-reduced MMC support on SPL, and as such, it's more consistent and convenient to find it as part of the SPL configuration. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
2019-06-23mmc: split fsl_esdhc driver for i.MXYangbo Lu
The fsl_esdhc driver was for Freescale eSDHC on MPC83XX/MPC85XX initially. The later QoriQ series PowerPC processors (which were evolutions of MPC83XX/MPC85XX), QorIQ series ARM processors, and i.MX series processors were using this driver for their eSDHCs too. For the two series processors, the eSDHCs are becoming more and more different. We should have split it into two drivers, like them (sdhci-of-esdhc.c/sdhci-esdhc-imx.c) in linux kernel. This patch is just to create a fsl_esdhc_imx driver which is a copy of fsl_esdhc driver for i.MX processors. We will convert i.MX processors to use fsl_esdhc_imx, and clean up the two drivers separately in the future patches. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Tested-by: Steffen Dirkwinkel <s.dirkwinkel@beckhoff.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Martyn Welch <martyn.welch@collabora.com>
2019-05-04Merge tag 'mmc-2019-5-3' of https://github.com/MrVan/u-bootTom Rini
2019-05-04Convert CONFIG_SUPPORT_EMMC_BOOT to KconfigAlex Kiernan
This converts the following to Kconfig: CONFIG_SUPPORT_EMMC_BOOT As requested by Michal Simek <michal.simek@xilinx.com>, these boards have no eMMC so CONFIG_SUPPORT_EMMC_BOOT has not been migrated: xilinx_zynqmp_zc1275_revB xilinx_zynqmp_zc1751_xm018_dc4 xilinx_zynqmp_zc1751_xm019_dc5 xilinx_zynqmp_zcu100_revC xilinx_zynqmp_zcu102_rev1_0 xilinx_zynqmp_zcu102_revA xilinx_zynqmp_zcu102_revB xilinx_zynqmp_zcu104_revA xilinx_zynqmp_zcu104_revC xilinx_zynqmp_zcu106_revA xilinx_zynqmp_zcu111_revA Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> Acked-by: Lukasz Majewski <lukma@denx.de> Acked-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Ramon Fried <ramon.fried@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
2019-05-03mmc: sdhci: Add Support for ADMA2Faiz Abbas
The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-18ARC: dwmmc: Adding DesignWare MMC driver support for ARC devboardsEugeniy Paltsev
Add the DM_MMC-compatible DesignWare MMC driver support for Synopsys ARC devboards. It is created to switch ARC devboards to use DM_MMC. It required information such as clocks (Bus Interface Unit clock, Card Interface Unit clock) and SDIO bus width. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2019-01-19Kconfig: Migrate BOUNCE_BUFFERPhilipp Tomsich
The bounce buffer is used by a few drivers (most of the MMC drivers) to overcome limitations in their respective DMA implementation. This moves the configuration to Kconfig and makes it user-selectable (even though it will be a required feature to make those drivers work): the expected usage is for drivers depending on this to 'select' it unconditionally from their respective Kconfig (see follow-up patches). This commit includes a full migration using moveconfig.py to ensure that each commit compiles. To ensure bisectability we update dependencies of various drivers to now select BOUNCE_BUFFER when needed. [trini: Squash all patches to ensure bisectability] Signed-off-by: Tom Rini <trini@konsulko.com> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Otavio Salvador <otavio@ossystems.com.br> [dw_mmc portion] Reviewed-by: Fabio Estevam <festevam@gmail.com> [mxsmmc portion] Reviewed-by: Simon Glass <sjg@chromium.org> [tegra portion]
2018-12-19mmc: Add JZ47xx SD/MMC controller driverPaul Burton
Add driver for the JZ47xx MSC controller. Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Marek Vasut <marex@denx.de>
2018-11-28mmc: mtk-sd: add SD/MMC host controller driver for MT7623 SoCWeijie Gao
This patch adds MT7623 host controller driver for accessing SD/MMC. Cc: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Tested-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-22sunxi-mmc: introduce new MMC_SUNXI_HAS_MODE_SWITCH optionVasily Khoruzhick
Allwinner A64 has new mode but doesn't have a mode switch in CCM, and CCM_MMC_CTRL_MODE_SEL_NEW is not defined, so compilation fails if MMC_SUNXI_HAS_NEW_MODE is enabled Introduce new MMC_SUNXI_HAS_MODE_SWITCH option to be able to ifdef usage of CCM_MMC_CTRL_MODE_SEL_NEW Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> [jagan: update commit message] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # Amarula A64-Relic
2018-10-16arm64: versal: Add support for new Xilinx Versal ACAPsMichal Simek
Xilinx is introducing Versal, an adaptive compute acceleration platform (ACAP), built on 7nm FinFET process technology. Versal ACAPs combine Scalar Processing Engines, Adaptable Hardware Engines, and Intelligent Engines with leading-edge memory and interfacing technologies to deliver powerful heterogeneous acceleration for any application. The Versal AI Core series has five devices, offering 128 to 400 AI Engines. The series includes dual-core Arm Cortex™-A72 application processors, dual-core Arm Cortex-R5 real-time processors, 256KB of on-chip memory with ECC, more than 1,900 DSP engines optimized for high-precision floating point with low latency. The patch is adding necessary infrastructure in place without enabling platform which is done in separate patch. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-09-11mmc: k3_arasan: Add sdhci driver support for K3 family SoCsLokesh Vutla
AM654 has an arasan sdhci controller and a mmc phy attached to it. Add basic support for K3 specific arasan sdhci controller. Cc: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-09-10mmc: add HS400 supportPeng Fan
Add HS400 support. Selecting HS400 needs first select HS200 according to spec, so use a dedicated function for HS400. Add HS400 related macros. Remove the restriction of only using the low 6 bits of EXT_CSD_CARD_TYPE, using all the 8 bits. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Jean-Jacques Hiblot <jjhiblot@ti.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Faiz Abbas <faiz_abbas@ti.com> Cc: Marek Vasut <marex@denx.de> Signed-off-by: Peng Fan <peng.fan@nxp.com>
2018-07-10board: arm: Add support for Broadcom BCM7445Thomas Fitzsimmons
Add support for loading U-Boot on the Broadcom 7445 SoC. This port assumes Broadcom's BOLT bootloader is acting as the second stage bootloader, and U-Boot is acting as the third stage bootloader, loaded as an ELF program by BOLT. Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org> Cc: Stefan Roese <sr@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Florian Fainelli <f.fainelli@gmail.com>
2018-05-23Convert CONFIG_SUPPORT_EMMC_RPMB to KconfigAlex Kiernan
Convert CONFIG_SUPPORT_EMMC_RPMB to Kconfig. Split the command handling from the underlying support and expose this through CMD_MMC_RPMB. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-05-08mmc: Kconfig: add the MMC_TRACE config in KconfigJaehoon Chung
Add the MMC_TRACE config in Kconfig. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2018-04-21mmc: sh_mmcif: Add Kconfig entryMarek Vasut
Add Kconfig entry for SH MMCIF driver. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: Jaehoon Chung <jh80.chung@samsung.com>
2018-04-11mmc: renesas-sdhi: Add Renesas SDHI Kconfig entryMarek Vasut
Add Kconfig entry for the Renesas SDHI variant of the controller and split the Makefile entries accordingly. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-04-08treewide: Migrate CONFIG_FSL_ESDHC to KconfigMario Six
Migrate the CONFIG_FSL_ESDHC option to Kconfig. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-03-30mmc: ftsdc010: Merge nds32_mmc to ftsdc010Rick Chen
nsd32_mmc was created to support ftsdc010 dm. It is not necessary to separate both, so merge it to ftsdc010. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Cc: Greentime Hu <green.hu@gmail.com>
2018-03-30mmc: ftsdc010: Migrate CONFIG_FTSDC010_SDIO to KconfigRick Chen
Convert CONFIG_FTSDC010_SDIO to Kconfig. So CONFIG_FTSDC010_SDIO can also be removed from config_whitelist.txt. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Cc: Greentime Hu <green.hu@gmail.com>
2018-03-01mmc: Added Kconfig support for CONFIG_ZYNQ_SDHCI_MIN_FREQVipul Kumar
This patch added Kconfig support for CONFIG_ZYNQ_SDHCI_MIN_FREQ and enabled it in respective defconfig. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-01mmc: Added Kconfig support for CONFIG_ZYNQ_SDHCI_MAX_FREQVipul Kumar
This patch added Kconfig support for CONFIG_ZYNQ_SDHCI_MAX_FREQ and enabled it in respective defconfig. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-02-26mmc: omap_hsmmc: make it possible to compile out ADMA supportJean-Jacques Hiblot
Some platforms don't have ADMA controllers. For those platforms, compiling it out reduces the size of the binary by about 600 bytes. Leaving the support in doesn't break things as the driver checks at runtime if the ADMA2 controller is present. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Tested-by: Adam Ford <aford173@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-02-08Move most CONFIG_HAVE_BLOCK_DEVICE to KconfigAdam Ford
config_fallbacks.h has some logic that sets HAVE_BLOCK_DEVICE based on a list of enabled options. Moving HAVE_BLOCK_DEVICE to Kconfig allows us to drastically shrink the logic in config_fallbacks.h Signed-off-by: Adam Ford <aford173@gmail.com> [trini: Rename HAVE_BLOCK_DEVICE to CONFIG_BLOCK_DEVICE] Signed-off-by: Tom Rini <trini@konsulko.com>