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2018-07-25board: constify struct node_info arrayMasahiro Yamada
Add 'const' (also 'static' in some places) to struct node_info arrays to save memory footprint. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-07-23colibri_imx7: improve DDR3 timingStefan Agner
This makes sure that all Colibri iMX7 modules work with the same timing. The changes are: - Disable ODT on read (JEDEC standard JESD79-3F says in chapter 5.2.3 ODT during Reads: "As the DDR3 SDRAM can not terminate and drive at the same time, RTT must be disabled at least half a clock cycle..." and also MX7D SABRESD is disabling it) This alone fixed memory issues for two Colibri iMX7 1GB modules which showed issues before - Make sure tRFC(min) is at least 260ns - Make sure tRC is >50.625ns - tRP needs to be >13.125ns, we can lower from 18.75ns to 15ns - tFAW is not relevant, leave at reset Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-07-23colibri_imx7: add compatible string used in vanilla LinuxStefan Agner
Device trees from vanilla Linux do not specify a i.MX 7 specific compatible string. Make sure to set partitions also when booting upstream Linux. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2018-07-23mx7: Remove BMODE supportFabio Estevam
i.MX7 does not support BMODE due to the erratum e10574 ("Watchdog: A watchdog timeout or software trigger will not reset the SOC"), so remove its support. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-07-23board: toradex: add Colibri iMX6ULL supportStefan Agner
Add support for the Colibri iMX6ULL module which comes with on-board raw NAND. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2018-07-23board: toradex: add new and upcoming SKUsStefan Agner
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2018-05-10apalis_t30: fix optional pcie port reset for reliable pcie operationMarcel Ziswiler
Allow optionally bringing up the Apalis type specific 4 lane PCIe port as well as the PCIe switch as found on the Apalis Evaluation board. In order to avoid violating the PCIe reset timing do this by overriding the tegra_pcie_board_port_reset() function. Note however that both the Apalis type specific 4 lane PCIe port as well as the regular Apalis PCIe port are also left disabled in the device tree by default. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-10apalis_t30: fix pcie port 0 and 1 pin muxingMarcel Ziswiler
Fix optional Apalis type specific 4 lane PCIe port 0 and Apalis PCIe port 1 pin muxing. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-10apalis-tk1: fix pcie reset for reliable gigabit ethernet operationMarcel Ziswiler
It turns out that the current PCIe reset implementation in the PCIe board init function is not quite working reliably due to PCIe reset timing violations. Fix this by overriding the tegra_pcie_board_port_reset() function. Also allow optionally bringing up the PCIe switch as found on the Apalis Evaluation board. Note however that the Apalis PCIe port is also left disabled in the device tree by default. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-08net: Move enetaddr env access code to env config instead of net configAlex Kiernan
In order that we can use eth_env_* even when CONFIG_NET isn't set, move these functions to environment code from net code. This fixes failures such as: board/ti/am335x/built-in.o: In function `board_late_init': board/ti/am335x/board.c:752: undefined reference to `eth_env_set_enetaddr' u-boot/board/ti/am335x/board.c:766: undefined reference to `eth_env_set_enetaddr' which caters for use cases such as: commit f411b5cca48f ("board: am335x: Always set eth/eth1addr environment variable") when Ethernet is required in Linux, but not U-Boot. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-03-05libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>Masahiro Yamada
Thomas reported U-Boot failed to build host tools if libfdt-devel package is installed because tools include libfdt headers from /usr/include/ instead of using internal ones. This commit moves the header code: include/libfdt.h -> include/linux/libfdt.h include/libfdt_env.h -> include/linux/libfdt_env.h and replaces include directives: #include <libfdt.h> -> #include <linux/libfdt.h> #include <libfdt_env.h> -> #include <linux/libfdt_env.h> Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-12toradex: imx6: Rework PF0100 fuse programming commands to not be in SPLTom Rini
The code for programming the OTP fuses on the PMIC PF0100 can only be used in full U-Boot, so do not build / link it into SPL. Cc: Max Krummenacher <max.krummenacher@toradex.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Tested-by: Max Krummenacher <max.krummenacher@toradex.com>
2017-10-12imx: Include <input.h> header fileDiego Dorta
When building with W=1 errors like the one below is seen: board/freescale/mx6sabresd/mx6sabresd.c:546:5: warning: no previous prototype for ‘overwrite_console’ [-Wmissing-prototypes] int overwrite_console(void) Fix the build warnings by including <input.h>. Signed-off-by: Diego Dorta <diego.dorta@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-10-12colibri_imx6: Avoid calling setup_display() from SPL codeFabio Estevam
There is no need call setup_display() from SPL code, so move it to board_init(), which executes only in U-Boot proper. Reported-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-10-12apalis_imx6: Avoid calling setup_display() from SPL codeFabio Estevam
There is no need call setup_display() from SPL code, so move it to board_init(), which executes only in U-Boot proper. Reported-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-09-20toradex: imx6: Move g_dnl_bind_fixup() into common SPL codeFabio Estevam
Instead of having every board file to add its own g_dnl_bind_fixup() implementation, move it to the common imx6 SPL code. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Łukasz Majewski <lukma@denx.de>
2017-09-18imx: imx7d: remove CamelCase from ENET_xMHz macrosEric Nelson
Update these macros to use all upper-case to avoid checkpatch warnings: ENET_25MHz, ENET_50MHz, ENET_125MHz, Signed-off-by: Eric Nelson <eric@nelint.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2017-09-15blk: Remove various places that do flush cache after readBin Meng
All these places seem to inherit the codes from the MMC driver where a FIXME was put in the comment. However the correct operation after read should be cache invalidate, not flush. The underlying drivers should be responsible for the cache operation. Remove these codes completely. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: York Sun <york.sun@nxp.com> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: York Sun <york.sun@nxp.com>
2017-08-28imx: imx6: Move gpr_init() function to soc.cBreno Lima
Since the gpr_init() function is common for boards using MX6S, MX6DL, MX6D, MX6Q and MX6QP processors move it to the soc.c file. Signed-off-by: Breno Lima <breno.lima@nxp.com> Acked-by: Stefano Babic <sbabic@denx.de> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-08-23apalis/colibri_imx6: use independent USB PID for SPLStefan Agner
Use a completely independent USB Product ID for SPL. This allows to differentiate a SDP running in SPL and SDP running in a U-Boot which could not read the config block successfully. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com> Reviewed-by: Łukasz Majewski <lukma@denx.de>
2017-08-16Merge git://git.denx.de/u-boot-tegraTom Rini
2017-08-16env: Rename eth_getenv_enetaddr() to eth_env_get_enetaddr()Simon Glass
Rename this function for consistency with env_get(). Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16env: Rename getenv/_f() to env_get()Simon Glass
We are now using an env_ prefix for environment functions. Rename these two functions for consistency. Also add function comments in common.h. Quite a few places use getenv() in a condition context, provoking a warning from checkpatch. These are fixed up in this patch also. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16env: Rename eth_setenv_enetaddr() to eth_env_set_enetaddr()Simon Glass
Rename this function for consistency with env_set(). Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16env: Rename setenv() to env_set()Simon Glass
We are now using an env_ prefix for environment functions. Rename setenv() for consistency. Also add function comments in common.h. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-15env: Drop saveenv() in favour of env_save()Simon Glass
Use the env_save() function directly now that there is only one implementation of saveenv(). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Denk <wd@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15apalis_t30: fix usb otg power enableMarcel Ziswiler
Fix USB OTG power enable aka USBO1_EN which on Apalis T30 is connected to the T30 ball GEN2_I2C_SCL. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
2017-07-28dm: power: Convert as3722 to driver modelSimon Glass
Convert this PMIC driver to driver model and fix up other users. The regulator and GPIO functions are now handled by separate drivers. Update nyan-big to work correct. Three boards will need to be updated by the maintainers: apalis-tk1, cei-tk1-som. Also the TODO in the code re as3722_sd_set_voltage() needs to be completed. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Lukasz Majewski <lukma@denx.de> Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Tested-on: Jetson-TK1 Tested-by: Stephen Warren <swarren@nvidia.com>
2017-07-18Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini
2017-07-12imx: reorganize IMX code as other SOCsStefano Babic
Change is consistent with other SOCs and it is in preparation for adding SOMs. SOC's related files are moved from cpu/ to mach-imx/<SOC>. This change is also coherent with the structure in kernel. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Fabio Estevam <fabio.estevam@nxp.com> CC: Akshay Bhat <akshaybhat@timesys.com> CC: Ken Lin <Ken.Lin@advantech.com.tw> CC: Marek Vasut <marek.vasut@gmail.com> CC: Heiko Schocher <hs@denx.de> CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com> CC: Christian Gmeiner <christian.gmeiner@gmail.com> CC: Stefan Roese <sr@denx.de> CC: Patrick Bruenn <p.bruenn@beckhoff.com> CC: Troy Kisky <troy.kisky@boundarydevices.com> CC: Nikita Kiryanov <nikita@compulab.co.il> CC: Otavio Salvador <otavio@ossystems.com.br> CC: "Eric Bénard" <eric@eukrea.com> CC: Jagan Teki <jagan@amarulasolutions.com> CC: Ye Li <ye.li@nxp.com> CC: Peng Fan <peng.fan@nxp.com> CC: Adrian Alonso <adrian.alonso@nxp.com> CC: Alison Wang <b18965@freescale.com> CC: Tim Harvey <tharvey@gateworks.com> CC: Martin Donnelly <martin.donnelly@ge.com> CC: Marcin Niestroj <m.niestroj@grinn-global.com> CC: Lukasz Majewski <lukma@denx.de> CC: Adam Ford <aford173@gmail.com> CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr> CC: Boris Brezillon <boris.brezillon@free-electrons.com> CC: Soeren Moch <smoch@web.de> CC: Richard Hu <richard.hu@technexion.com> CC: Wig Cheng <wig.cheng@technexion.com> CC: Vanessa Maegima <vanessa.maegima@nxp.com> CC: Max Krummenacher <max.krummenacher@toradex.com> CC: Stefan Agner <stefan.agner@toradex.com> CC: Markus Niebel <Markus.Niebel@tq-group.com> CC: Breno Lima <breno.lima@nxp.com> CC: Francesco Montefoschi <francesco.montefoschi@udoo.org> CC: Jaehoon Chung <jh80.chung@samsung.com> CC: Scott Wood <oss@buserror.net> CC: Joe Hershberger <joe.hershberger@ni.com> CC: Anatolij Gustschin <agust@denx.de> CC: Simon Glass <sjg@chromium.org> CC: "Andrew F. Davis" <afd@ti.com> CC: "Łukasz Majewski" <l.majewski@samsung.com> CC: Patrice Chotard <patrice.chotard@st.com> CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> CC: Hans de Goede <hdegoede@redhat.com> CC: Masahiro Yamada <yamada.masahiro@socionext.com> CC: Stephen Warren <swarren@nvidia.com> CC: Andre Przywara <andre.przywara@arm.com> CC: "Álvaro Fernández Rojas" <noltari@gmail.com> CC: York Sun <york.sun@nxp.com> CC: Xiaoliang Yang <xiaoliang.yang@nxp.com> CC: Chen-Yu Tsai <wens@csie.org> CC: George McCollister <george.mccollister@gmail.com> CC: Sven Ebenfeld <sven.ebenfeld@gmail.com> CC: Filip Brozovic <fbrozovic@gmail.com> CC: Petr Kulhavy <brain@jikos.cz> CC: Eric Nelson <eric@nelint.com> CC: Bai Ping <ping.bai@nxp.com> CC: Anson Huang <Anson.Huang@nxp.com> CC: Sanchayan Maity <maitysanchayan@gmail.com> CC: Lokesh Vutla <lokeshvutla@ti.com> CC: Patrick Delaunay <patrick.delaunay@st.com> CC: Gary Bisson <gary.bisson@boundarydevices.com> CC: Alexander Graf <agraf@suse.de> CC: u-boot@lists.denx.de Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-07-11board: toradex: use get_nand_dev_by_index()Grygorii Strashko
As part of preparation for nand DM conversion the new API has been introduced to remove direct access to nand_info array. So, use it here instead of accessing to nand_info array directly. Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
2017-07-11Kconfig: Add CONFIG_SATA to enable SATASimon Glass
At present CONFIG_CMD_SATA enables the 'sata' command which also brings in SATA support. Some boards may wish to enable SATA without the command. Add a separate CONFIG to permit this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-06-05arm: Include asm/setup.h explictlySimon Glass
Include this header where needed so we do not need to rely on common.h. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05arm: Add explicit include of <asm/mach-types.h>Simon Glass
Rather than relying on common.h to provide this include, which is going away at some point, include it explicitly in each file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-06-01tegra: Convert MMC to use driver model for operationsSimon Glass
Enable CONFIG_DM_MMC_OPS and CONFIG_BLK for all Tegra devices. This moves Tegra to use driver model fully for MMC. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: Use dm.h header when driver mode is usedSimon Glass
This header includes things that are needed to make driver build. Adjust existing users to include that always, even if other dm/ includes are present Signed-off-by: Simon Glass <sjg@chromium.org>
2017-05-12colibri_imx7: Fix unused variable warningTom Rini
The variable usdhc3_emmc_pads is never referenced, drop. Cc: Stefan Agner <stefan.agner@toradex.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-12apalis_imx6: Fix unused variable warningTom Rini
The variable vga_pads is never referenced, drop. Cc: Max Krummenacher <max.krummenacher@toradex.com> Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
2017-04-14board: toradex: colibri_vf: Add DCU support for Colibri VybridStefan Agner
The Vybrid SoC family has the same display controller unit (DCU) like the LS1021A SoC. This patch adds platform data, pinmux defines and clock control to enable the driver for Toradex Colibri Vybrid module. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2017-04-01arm: tegra: initial support for apalis tk1Marcel Ziswiler
This patch adds board support for the Toradex Apalis TK1 a computer on module which can be used on different carrier boards. The module consists of a Tegra TK1 SoC, a PMIC solution, 2 GB of DDR3L RAM, a bunch of level shifters, an eMMC, a TMP451 temperature sensor chip, an I210 gigabit Ethernet controller and a SGTL5000 audio codec. Furthermore, there is a Kinetis MK20DN512 companion micro controller for analogue, CAN and resistive touch functionality. For the sake of ease of use we do not distinguish between different carrier boards for now as the base module features are deemed sufficient enough for regular booting. The following functionality is working so far: - eMMC boot, environment storage and Toradex factory config block - Gigabit Ethernet - MMC/SD cards (both MMC1 as well as SD1 slot) - USB client/host (dual role OTG port as client e.g. for DFU/UMS or host, other two ports as host) Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2017-03-19ARM: vf610: move to standard arch/board approachStefan Agner
Move Freescale/NXP Vybrid to a standard arch/board approach, similar to what has been done to i.MX 6 earlier in commit 89ebc82137be ("ARM: mx6: move to a standard arch/board approach"). Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2017-03-19colibri_imx7: use device-tree for MTD partitionsStefan Agner
Use device-tree fixup to communicate the MTD partitions to the kernel. Remove mtdparts from the kernel command line. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2017-03-19colibri_imx7: setup PMIC sleep mode configurationStefan Agner
Disable 3.3V Ethernet and ARM rail when entering sleep mode. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2017-03-19colibri_imx7: implement board level USB PHY modeStefan Agner
Implement board level USB PHY mode callback. On USB OTG Port 1 the Colibri standard foresees GPIO USBC_DET to decide whether the port should run in Host or Device mode. Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2017-01-11mmc: move more driver config options to KconfigMasahiro Yamada
Move (and rename) the following CONFIG options to Kconfig: CONFIG_DAVINCI_MMC (renamed to CONFIG_MMC_DAVINCI) CONFIG_OMAP_HSMMC (renamed to CONFIG_MMC_OMAP_HS) CONFIG_MXC_MMC (renamed to CONFIG_MMC_MXC) CONFIG_MXS_MMC (renamed to CONFIG_MMC_MXS) CONFIG_TEGRA_MMC (renamed to CONFIG_MMC_SDHCI_TEGRA) CONFIG_SUNXI_MMC (renamed to CONFIG_MMC_SUNXI) They are the same option names as used in Linux. This commit was created as follows: [1] Rename the options with the following command: find . -name .git -prune -o ! -path ./scripts/config_whitelist.txt \ -type f -print | xargs sed -i -e ' s/CONFIG_DAVINCI_MMC/CONFIG_MMC_DAVINCI/g s/CONFIG_OMAP_HSMMC/CONFIG_MMC_OMAP_HS/g s/CONFIG_MXC_MMC/CONFIG_MMC_MXC/g s/CONFIG_MXS_MMC/CONFIG_MMC_MXS/g s/CONFIG_TEGRA_MMC/CONFIG_MMC_SDHCI_TEGRA/g s/CONFIG_SUNXI_MMC/CONFIG_MMC_SUNXI/g ' [2] Commit the changes [3] Create entries in driver/mmc/Kconfig. (copied from Linux) [4] Move the options with the following command tools/moveconfig.py -y -r HEAD \ MMC_DAVINCI MMC_OMAP_HS MMC_MXC MMC_MXS MMC_SDHCI_TEGRA MMC_SUNXI [5] Sort and align drivers/mmc/Makefile for readability Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marex@denx.de>
2016-12-16arm: imx: initial support for colibri imx6Max Krummenacher
This adds board support for the Toradex module family Colibri iMX6. The familiy consists of a module with i.MX6 DualLite, i.MX6 Solo, both with a version for commercial and industrial temperature range. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
2016-12-16arm: imx: initial support for apalis imx6Max Krummenacher
This adds board support for the Toradex module family Apalis iMX6. The familiy consists of a module with i.MX6 Dual, i.MX6 Quad with commercial and industrial temperature range. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
2016-12-16colibri_vf: use same NAND clock as Linux usesStefan Agner
Currently a divider of 6 has been used, leading to following NAND Flash Controller (NFC) clocks: VF61: 27.7 MHz (166.7MHz bus clock) VF50: 22 MHz (132MHz bus clock) The NAND Flash Memory used on VF50 allows to use clock speed of up to 33MHz, while the Flash Memory of VF61 allows 50MHz. We can use the same divider of 4 on both modules to configure the maximal possible clock speeds: VF61: 41.7 MHz VF50: 33 MHz Signed-off-by: Stefan Agner <stefan.agner@toradex.com>