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2018-04-06ARM: am33xx: Inhibit re-initialization of DDR during RTC-onlyRuss Dill
This inhibits the re-inititialization of DDR during an RTC-only resume. If this is not done, an L3 NOC error is produced as the DDR gets accessed before the re-init has time to complete. Tested on AM437x GP EVM. Signed-off-by: Russ Dill <Russ.Dill@ti.com> [j-keerthy@ti.com Ported to Latest Master branch] Signed-off-by: Keerthy <j-keerthy@ti.com>
2018-04-06ARM: AM43xx: Add support for RTC only + DDR in self-refresh modeTero Kristo
Kernel stores information to the RTC_SCRATCH0 and RTC_SCRATCH1 registers for wakeup from RTC-only mode with DDR in self-refresh. Parse these registers during SPL boot and jump to the kernel resume vector if the device is waking up from RTC-only modewith DDR in Self-refresh. The RTC scratch register layout used is: SCRATCH0 : bits00-31 : kernel resume address SCRATCH1 : bits00-15 : RTC magic value used to detect valid config SCRATCH1 : bits16-31 : board type information populated by bootloader During the normal boot path the SCRATCH1 : bits16-31 are updated with the eeprom read board type data. In the rtc_only boot path the rtc scratchpad register is read and the board type is determined and correspondingly ddr dpll parameters are set. This is done so as to avoid costly i2c read to eeprom. RTC-only +DRR in self-refresh mode support is currently only enabled for am43xx_evm_rtconly_config. This is not to be used with epos evm builds. Signed-off-by: Tero Kristo <t-kristo@ti.com> [j-keerthy@ti.com Rebased to latest u-boot master branch] Signed-off-by: Keerthy <j-keerthy@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-04-04Merge git://git.denx.de/u-boot-sunxiTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-03sunxi: allow NAND support to be compiled for sun8i platformsMiquel Raynal
Add some clocks/PLL definitions as well as the dependency on MACH_SUN8I in Kconfig. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-28rockchip: pinctrl: rk3188: Move the iomux definitions into pinctrl-driverAlexander Kochetkov
Clean the iomux definitions at grf_rk3188.h, and move them into pinctrl-driver for resolving the compiling error of redefinition. Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28rockchip: pinctrl: rk3036: Move the iomux definitions into pinctrl-driverAlexander Kochetkov
Clean the iomux definitions at grf_rk3036.h, and move them into pinctrl-driver for resolving the compiling error of redefinition. Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28rockchip: pinctrl: rk3399: add support for I2C[123467]Philipp Tomsich
This adds support for the (to date unsupported) I2C controllers 1~4 and 6~7 (i.e. now all controllers except I2C5, which is not accessible on the RK3399-Q7, are supported by pinctrl). Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28rockchip: pinctrl: rk3399: fix GPIO2B1 and GPIO2B2 shift valuePhilipp Tomsich
The shift values for GPIO2B1 and GPIO2B2 had in fact referred to GPIO2B0 and GPIO2B1, respectively. This substitutes the correct values. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-23arm64: zynqmp: Add support for verifying secure imagesSiva Durga Prasad Paladugu
This patch adds new command "zynqmp" to handle zynqmp specific commands like "zynqmp secure". This secure command is used for verifying zynqmp specific secure images. The secure image can either be authenticated or encrypted or both encrypted and authenticated. The secure image is prepared using bootgen and will be in xilinx specific BOOT.BIN format. The optional key can be used for decryption of encrypted image if user key was specified while creation BOOT.BIN. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-22armv8: layerscape: csu: enable ns access to PFE registersCalvin Johnson
Enable all types of non-secure access to PFE block registers. Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com> Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22armv8: fsl-lsch2: configure pfe's DDR and HDBUS interfaces and ECCCalvin Johnson
1. Set AWCACHE0 attribute of PFE DDR and HDBUS master interfaces to bufferable. 2. Set RD/WR QoS for PFE DDR and HDBUS AXI master interfaces. 3. Disable ECC detection for PFE. Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com> Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22armv8: fsl-lsch2: add pfe macros and update ccsr_scfg structureCalvin Johnson
SoC specific PFE macros are defined and structure ccsr_scfg is updated with members defined for PFE. Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com> Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22armv8: fsl-layerscape: Add support of GPIO structurePrabhakar Kushwaha
Layerscape Gen2 SoC supports GPIO registers to control GPIO signals. Adding support of GPIO structure to access GPIO registers. Signed-off-by: Pratiyush Srivastava <pratiyush.srivastava@nxp.com> Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-16Convert all of CONFIG_CONS_INDEX to KconfigTom Rini
This converts the following to Kconfig: CONFIG_CONS_INDEX We have existing entries for this option in a number of places, with different guards on them. They're also sometimes used for things not directly inside of the serial driver. First, introduce a new symbol to guard the use of CONFIG_CONS_INDEX, so that in the case where we don't need this for the serial driver, but for some other use, we can still do it. Next, consolidate all of these into the single entry in drivers/serial/Kconfig. Finally, introduce CONS_INDEX_[023456] so that we can imply a correct value here to make the defconfig side of this smaller. Signed-off-by: Adam Ford <aford173@gmail.com> [trini: Rework a lot of the logic here, such that I took authorship from Adam, but kept his S-o-B line] Signed-off-by: Tom Rini <trini@konsulko.com>
2018-03-13arch-stm32: Clean arch-stm32f7/syscfg.hPatrice Chotard
Remove all unused defines Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13arch-stm32: Remove stm32_periph.hPatrice Chotard
Remove arch/arm/include/asm/arch-stm32fx/stm32_periph.h as all defines or enums are no more used. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13arch-stm32: Factorize stm32.h for STM32F4 and F7Patrice Chotard
For STM32F4 and F7 SoCx family, a specific stm32.h file exists. Some common defines are duplicated or even unused in each of these stm32.h. Factorize all common definition in arch/arm/include/asm/stm32f.h and keep specific definitions in each arch/arm/include/asm/arch-stm32fx/stm32.h. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13arch-stm32: Move gpio.h for STM32 SoCs in include/asm/Patrice Chotard
Instead to have 3 identical gpio.h for all STM32 SoCs, migrate them in one file in include/asm. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13arch-stm32f4: Remove fmc.h filePatrice Chotard
fmc.h file is no more used, remove it. All FMC related defines are declared in drivers/ram/stm32_sdram.c which is common to all STM32 SoCs. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13board: stm32: switch to DM STM32 timerPatrice Chotard
Use available DM stm32_timer driver instead of dedicated mach-stm32/stm32fx/timer.c. Remove all defines or files previously used for timer usage in arch/arm/include/asm/arch-stm32fx and in arch/arm/mach-stm32/stm32fx Enable DM STM32_TIMER for STM32F4/F7 and H7. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-11imx: hab: Make usage of packed attribute consistentBryan O'Donoghue
commit cd2d46003ce1 ("arm: imx: hab: Add IVT header definitions") declares struct ivt_header as "__attribute__((packed))". commit ed286bc80e9d ("imx: hab: Check if CSF is valid before authenticating image") declares struct hab_hdr with __packed. This patch makes the __packed convention consistent. Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Cc: Utkarsh Gupta <utkarsh.gupta@nxp.com> Cc: Breno Lima <breno.lima@nxp.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-03-11imx: hab: Fix usage of packed attributeBryan O'Donoghue
commit ed286bc80e9d ("imx: hab: Check if CSF is valid before authenticating image") makes use of "__packed" as a prefix to the "struct hab_hdr" declaration. With my compiler "gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)" we get: ./arch/arm/include/asm/mach-imx/hab.h:42:25: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token struct __packed hab_hdr { Fix this problem by including <linux/compiler.h> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Cc: Utkarsh Gupta <utkarsh.gupta@nxp.com> Cc: Breno Lima <breno.lima@nxp.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-25Merge git://git.denx.de/u-boot-mmcTom Rini
2018-02-26mmc: omap_hsmmc: do not embed struct mmc in struct omap_hsmmc_platJean-Jacques Hiblot
The area for struct mmc can be allocated dynamically. It greatly reduces the size of struct omap_hsmmc_plat. This is useful in cases where the board level code declares one or two struct omap_hsmmc_plat because it doesn't use the Driver Model. This saves around 740 bytes for the am335x_evm SPL. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Tested-by: Adam Ford <aford173@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-02-25Merge git://git.denx.de/u-boot-imxTom Rini
2018-02-22arm: imx: hab: Define HAB_RVT_BASE according to the processor versionBreno Lima
Currently the following devices are using a different definition for ROM Vector Table addresses: - i.MX6DQP = All rev - i.MX6DQ >= rev 1.5 - i.MX6SDL >= rev 1.2 There is no need to create a new RVT macros since the only update were the RVT base address. Remove HAB_RVT_*_NEW macros and define a new RVT base address. More details about RVT base address can be found on processors Reference Manual and in the following documents: EB803: i.MX 6Dual/6Quad Applications Processor Silicon Revision 1.2 to 1.3 Comparison EB804: i.MX 6Solo/6DualLite Application Processor Silicon Revision 1.1 to 1.2/1.3 Comparison Signed-off-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-22imx: hab: Check if CSF contains deprecated commandsUtkarsh Gupta
Write, Check and Set MID commands have been deprecated from the Code Signing Tool (CST) v2.3.3 and will not be implemented in newer versions of HAB, hence the following features are no longer available: - Write Data - Clear Mask - Set Mask - Check All Clear - Check All Set - Check Any Clear - Check Any Set - Set MID The inappropriate use of Write Data command may lead to an incorrect authentication boot flow. Since no specific application has been identified that requires the use of any of these features, it is highly recommended to add this check. Signed-off-by: Utkarsh Gupta <utkarsh.gupta@nxp.com> Signed-off-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-22imx: hab: Check if CSF is valid before authenticating imageUtkarsh Gupta
For proper authentication the HAB code must check if the CSF is valid. Users must call the csf_is_valid() function to parse the CSF prior to authenticating any additional images. The function will return a failure if any of the following invalid conditions are met: - CSF pointer is NULL - CSF Header does not exist - CSF does not lie within the image bounds - CSF command length zero Signed-off-by: Utkarsh Gupta <utkarsh.gupta@nxp.com> Signed-off-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-19ARM: OMAP5: set mmc clock frequency to 192MHzKishon Vijay Abraham I
Now that omap_hsmmc has support for hs200 mode, change the clock frequency to 192MHz. Also change the REFERENCE CLOCK frequency to 192MHz based on which the internal mmc clock divider is calculated. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: add signal voltage selection supportJean-Jacques Hiblot
I/O data lines of UHS SD card operates at 1.8V when in UHS speed mode (same is true for eMMC in DDR and HS200 modes). Add support to switch signal voltage to 1.8V in order to support UHS cards and eMMC HS200 and DDR modes. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: Add support to get pinctrl values and max frequency for ↵Kishon Vijay Abraham I
different hw revisions AM572x SR1.1 requires different IODelay values to be used than that used in AM572x SR2.0. These values are populated in device tree. Add capability in omap_hsmmc driver to extract IOdelay values for different silicon revision. The maximum frequency is also reduced when using a ES1.1. To keep the ability to boot both revsions with the same dtb, those values can be provided by the platform code. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19ARM: OMAP5/DRA7: Enable iodelay recalibration to be done from ubootKishon Vijay Abraham I
Add a new API to perform iodelay recalibration without isolate io to be used in uboot. The data manual of J6/J6 Eco recommends to set different IODELAY values depending on the mode in which the MMC/SD is enumerated in order to ensure IO timings are met. The MMC driver can use the new API to set the IO delay values depending on the MMC mode. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: Workaround for errata id i802Jean-Jacques Hiblot
According to errata i802, DCRC error interrupts (MMCHS_STAT[21] DCRC=0x1) can occur during the tuning procedure. The DCRC interrupt, occurs when the last tuning block fails (the last ratio tested). The delay from CRC check until the interrupt is asserted is bigger than the delay until assertion of the tuning end flag. Assertion of tuning end flag is what masks the interrupts. Because of this race, an erroneous DCRC interrupt occurs. The suggested workaround is to disable DCRC interrupts during the tuning procedure which is implemented here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: Add tuning supportJean-Jacques Hiblot
HS200/SDR104 requires tuning command to be sent to the card. Use the mmc_send_tuning library function to send the tuning command and configure the internal DLL. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: Enable DDR mode supportKishon Vijay Abraham I
In order to enable DDR mode, Dual Data Rate mode bit has to be set in MMCHS_CON register. Set it here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: set MMC mode in the UHSMS bit fieldJean-Jacques Hiblot
Use the timing parameter set in the MMC core to set the mode in UHSMS bit field. This is in preparation for adding HS200 support in omap hsmmc driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: add support to set default io voltageKishon Vijay Abraham I
"ti,dual-volt" is used in linux kernel to set the voltage capabilities. For host controller dt nodes that doesn't have "ti,dual-volt", it's assumed 1.8v is the io voltage. This is not always true (like in the case of beagle-x15 where the io lines are connected to 3.3v). Hence if "no-1-8-v" property is set, io voltage will be set to 3v. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-19mmc: omap_hsmmc: cleanup clock configurationJean-Jacques Hiblot
Add a separate function for starting the clock, stopping the clock and setting the clock. Starting the clock and stopping the clock can be used irrespective of setting the clock (For example during iodelay recalibration). Also set the clock only if there is a change in frequency. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-02-11configs: Migrate CONFIG_SYS_TEXT_BASETom Rini
On the NIOS2 and Xtensa architectures, we do not have CONFIG_SYS_TEXT_BASE set. This is a strict migration of the current values into the defconfig and removing them from the headers. I did not attempt to add more default values in and for now will leave that to maintainers. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-02-04i2c: imx: Take mx6dqp in consideration in the I2C_PADS_INFO macroEran Matityahu
We should take the MX6DP and MX6QP options in consideration in the I2C_PADS_INFO macro. Based on a patch by Pierluigi Passaro <pierluigi.p@variscite.com> Signed-off-by: Eran Matityahu <eran.m@variscite.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-04iomux-v3: Take mx6dqp in consideration for imx_iomux_v3_setup_pad()Eran Matityahu
We should take the MX6DP and MX6QP options in consideration when defining imx_iomux_v3_setup_pad(). Based on a patch by Pierluigi Passaro <pierluigi.p@variscite.com> Signed-off-by: Eran Matityahu <eran.m@variscite.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-04imx: mx25: Remove SION bit in all pin-mux that are safeMichael Trimarchi
SION bit should be used in the situation that we need to read back the value of a pin and should not be set by default macro. We get some malfunction as raised by following thread https://www.spinics.net/lists/linux-usb/msg162574.html As reported by this application note: https://www.nxp.com/docs/en/application-note/AN5078.pdf The software input on (SION) bit is an option to force an input path to be active regardless of the value driven by the corresponding module. It is used when the nature direction of a pin depending on selected alternative function is an output, but it is needed to read the real logic value on a pin. The SION bit can be used in: • Loopback: the module of a selected alternative function drives the pad and also receives the pad value as an input • GPIO capture: the module of a selected alternative function drives the pin and the value is captured by the GPIO SION bit is not necessary when the pin is configured as a peripheral apart specific silicon bug. If an application needs to have this set, this should be done in board file or in dts file Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-04imx: mx8m: add ddr controller memory mapPeng Fan
Add ddrc memory map and enum types used in ddr initialization. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
2018-02-04imx: lcdif: include i.MX8MPeng Fan
Include i.MX8M in lcdif register layout map. Also included i.MX7ULP in this patch, since share same with i.MX8M. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-04imx: mx8m: add soc related settings and filesPeng Fan
Add SoC level initialization code - arch_cpu_init - mmu table - detect cpu revision - reset cpu and wdog settings - timer init - wdog settings - lowlevel init to save/restore registers - a few dummy header file to avoid build failure - ft_system_setup Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-04imx: mx7: move get_boot_device to cpu.cPeng Fan
Move get_boot_device to cpu.c to prepare adding i.MX8M support, because i.MX8M share same code with i.MX7. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2018-02-04imx: cleanup bootauxPeng Fan
Move i.MX6/7 bootaux code to imx_bootaux.c. The i.MX6/7 has different src layout, so define M4 reg offset to ease the cleanup. Redefine the M4 related BIT for share common code. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-04imx: add pad settings bit definition for i.MX8MPeng Fan
Add pad settings bit definition for i.MX8M. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2018-02-04imx: add i.MX8MQ SoC Revision and is_mx8m helperPeng Fan
Add i.MX8MQ SoC Revision Add is_mx8m helper The 7ULP is a dummy number, so use 0xEx. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2018-02-04imx: boot_mode: add USB_BOOT entryPeng Fan
Add USB_BOOT entry. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>