Since U-Boot builds HTML documentation, migrate the contents
of the README file to an rst file which can generate the
proper outputs.
Signed-off-by: Adam Ford <aford173@gmail.com>
Instead of cluttering up a header file with a bunch of defines,
move the default environmental variables to a file called
imx8mn_beacon.env and reference it from the defconfigs.
Signed-off-by: Adam Ford <aford173@gmail.com>
Since U-Boot builds HTML documentation, migrate the contents
of the README file to an rst file which can generate the
proper outputs.
Signed-off-by: Adam Ford <aford173@gmail.com>
Instead of cluttering up a header file with a bunch of defines,
move the default environmental variables to a file called
imx8mm_beacon.env and reference it from the defconfig.
Signed-off-by: Adam Ford <aford173@gmail.com>
While testing the ethernet interface on a Variscite symphony carrier
board using an imx8mn SOM with an onboard ADIN1300 PHY (EC hardware
configuration), the ethernet PHY is not detected.
The ADIN1300 datasheet indicate that the "Management interface
active (t4)" state is reached at most 5ms after the reset signal is
deasserted.
The device tree in Variscite custom git repository uses the following
property:
phy-reset-post-delay = <20>;
Add a new MDIO property 'reset-deassert-us' of 20ms to have the same
delay inside the ethphy node. Adding this property fixes the problem
with the PHY detection.
Note that this SOM can also have an Atheros AR8033 PHY. In this case,
a 1ms deassert delay is sufficient. Add a comment to that effect.
Fixes: c4c1ed68c1 ("imx8mn_var_som: Add support for Variscite
VAR-SOM-MX8M-NANO board")
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Select DM_ETH_PHY so that the reset-gpios property of the ethphy node
can be used.
Also select DM_PCA953X, which is needed for resetting the
ethernet PHY on the carrier board via the PCA9534 I/O expander.
Commit 4e5114daf9 ("imx8mn: synchronise device tree with linux") did
synchronise device tree with linux, which in effect removed obsolete
PHY reset properties and replaced them with new mdio DM
properties. But the commit didn't activate DM_ETH_PHY or DM_PCA953X.
Fixes: 4e5114daf9 ("imx8mn: synchronise device tree with linux")
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Enable support to read and display configuration/manufacturing infos
from 4Kbit EEPROM located on SOM board.
Note: CONFIG_DISPLAY_BOARDINFO is automatically selected for ARM arch.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Getting
Found /vpu_g1@38300000 node
Modify /vpu_g1@38300000:status disabled
Found /vpu_g2@38310000 node
Modify /vpu_g2@38310000:status disabled
etc. on the console on every boot is needlessly verbose. Demote the
"Found ..." lines to debug(), which is consistent with other instances
in soc.c.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
The single binary version of u-boot for XEA board is used to debrick and
factory programming.
The produced u-boot.sb is a single file, which allows having fully
operational u-boot prompt loaded with imx287 ROM.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The XEA board now supports the DM_SERIAL feature in u-boot.
The SPL is using the SPL_OF_PLATDATA - i.e. NOT SPL_DM_SERIAL to
reduce the overall size of the SPL binary.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The CONFIG_PL011 used by all other ARCH_MX28 based boards is not
supporting DM_SERIAL. Instead, other define - namely CONFIG_PL01X_SERIAL
shall be used by boards supporting DM_SERIAL.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The in-spl enabled DM serial console requires the board setup to be
able to parse SPL_OF_PLATDATA based serial driver (pl01x) for the
imx28 based XEA board.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
When DM_SERIAL is enabled on mxs (i.e. imx28) platform, the console
early initialization must be postponed until the driver model is
correctly setup.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Before this change the FR_TXFF (Transmit FIFO full) bit (5 in
HW_UARTDBG_FR) has been used to assess if there is still data pending
to be sent via UART.
This approach is problematic, as it may happen that serial is in the
middle of transmission (so the TX FIFO is NOT full anymore) and this
test returns true infinitely. As a result, for example in _serial_flush()
DM serial function we are locked in endless while().
The fix here is to test explicitly if the TX FIFO is empty.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Before this change, building this driver for SPL with enabled SPL_DM_SERIAL
was problematic, as '-Wunused-const-variable=' warning was visible.
Now, the code is only considered when u-boot proper is build.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
As imx28 family of SoCs is NOT supporting the Common Clock Framework (CCF)
the 'clks' property shall NOT be enabled by default.
Without this change u-boot proper before relocation tries to bind driver
(which doesn't exists) for this device. As a result, pre-relocation DTB
parsing is finished with error and the board hangs in a very early stage
of u-boot proper boot process.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The imx287 SoC doesn't support common clock framework (CCF), so the
'clocks' property is removed to avoid early (i.e. in SPL) errors when
SPL_OF_PLATDATA is used.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The DM_SERIAL implicitly requires CONFIG_PL01X_SERIAL, which
allows support for both serial IP block versions (i.e. PL011 and
PL010).
The decision about used IP block is based on the compatible string,
when DM is used.
In the XEA, the OF_PLATDATA is used to allow usage of serial driver in
the SPL (as the size of SPL is crucial). In this case one cannot extract
the type of IP block from .data field (corresponding to compatible) and
it must be explicitly read at probe from dtoc generated, u-boot specific
property.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
After enabling DM_SERIAL for XEA board, the same serial shall be used
in the SPL (with SPL_OF_PLATDATA support).
Signed-off-by: Lukasz Majewski <lukma@denx.de>
This code fixes following WARNING:
DTOC spl/dts/dt-plat.c
fsl_imx28_clkctrl: WARNING: the driver fsl_imx28_clkctrl was not found in the driver list
As imx28 doesn't yet support common clock framework, this prevents from
DTOC warnings during SPL build.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
After the re-sync with Linux kernel (v6.0) of the XEA DTS
(SHA1: 7d08ddd09b) the alias
for SPI bus, to which SPI-NOR memory is connected, has changed from
'spi3' to 'spi2'.
To be in sync with current u-boot's xea dts, the default bus number
(which allows running 'sf probe' without any extra parameters given)
has been adjusted.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
After the commit (SHA1: 7d08ddd09b) some
u-boot specific XEA FEC related properties have been replaced by ones
from the Linux kernel.
To be more specific - XEA board (and imx287 in general) has built L2
switch connected to FEC, which needs some special treatment.
In u-boot it is handled with 'mac0' node, whereas Linux uses dedicated
switch DTS node.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
After the re-sync with Linux Kernel's DTS
(SHA1: 7d08ddd09b), the XEA's
descripion has nodes and properties, which are NOT utilized
in the u-boot.
To avoid confusion - those are deleted.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Add new i.MX 8M Plus Quad SKU to ConfigBlock handling.
0070: Verdin iMX8M Plus Quad 8GB WB IT
This SKU is identical to 0066 but supporting Industrial Temperature range.
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
This patch adjusts XEA's PMU setup as this board is supposed to be
mainly powered from DCDC_BATT source.
Moreover, in this HW design the VDD_4P2 is not used as well.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The IMX28 PMU (Power Management Unit) has a dedicated Linear Regulator
to produce (by default) 4.2V output - available outside the chip as
VDD_4P2.
When system is supposed to not use VDD5V as a main power source - instead
the DCDC_BATT is used; it is safe to disable this regulator.
As the in-PMU DCDC switching regulator (from which DCDC_VDDA, DCDC_VDDIO
and DCDC_VDDD are generated) can be driven from DCDC_BATT or output
of this 4P2 regulator - by disabling the latter the use of the DCDC_BATT
is forced.
To be more specific - according to NXP's AN4199 the DCDC_BATT source is
preferred (over VDD5V), as more efficient and stable source for
industrial applications.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
This new Kconfig option allows disabling the in-PMU battery charging
block. This may be required when DCDC_BAT source is powered not from
battery, but from already regulated, good quality source.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
This option sets the current limit for 5V source to zero, so all
the PMU outputs are primarily powered from battery source (DCDC_BAT).
This option may be set on systems, where the 5V is NOT supposed to be
in any scenario powering the system - for example on systems where
DCDC_BAT is connected to fixed and regulated 4.2V source (so the
"battery" is not present).
Signed-off-by: Lukasz Majewski <lukma@denx.de>
In the imx8m power domain kernel driver, there is an extra udelay(5)
prior to requesting the domain to power up:
https://github.com/torvalds/linux/blob/v6.3/drivers/soc/imx/gpcv2.c#L347-L375
Haven't observed any issues due to the lack of this delay in U-Boot yet,
but better to align it with the kernel driver implementation.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Update the venice board documentation to show how to install to the
various eMMC hardware partitions available as the same binary firmware
can be placed in either user/boot0/boot1 without build-time config
changes. Note that the boot offsets differ depending on the SoC and the
eMMC hardware partition.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
To allow U-Boot to fit within emmc boot partitions move the env from
just under 16MiB to just under 4MiB as some emmc devices used on venice
boards have 4MiB boot partitions. This still leaves plenty of room for
U-Boot.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
The update_firmware script is intended to update the boot firmware but
the details including the offset and hardware partition are dependent
on the boot device.
Specifically:
- IMX8MM/IMX8MP (BOOTROM v2) the offset is 32KiB for SD and eMMC user
hardware partition and 0KiB for eMMC boot partitions.
- IMX8MM the offset is 33KiB for SD and eMMC regardless of hardware
partition.
Dynamically set soc, dev, bootpart, and bootblk env vars at runtime
and use these in the update_firmware script. Remove the splblk env var
from config files as its no longer needed.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Determine the U-Boot env hardware partition depending on the boot
device.
This allows the same boot firmware image to be placed on user, boot0,
or boot1 without changing CONFIG_SYS_MMC_ENV_PART.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR needs to adjust for
IMX8MN and IMX8MP when booting from an eMMC boot partition due
to IMX BOOTROM v2 using an SPL offset of 0 for boot partitions
and 32K for the user partition.
In order to allow the same firmware to run on both user and boot
hardware partitions adjust raw_sect dynamically at runtime.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Add GPIO name lookup so that you can act on GPIO's by name vs controller
id:
Before:
u-boot=> gpio input pci_wdis#
GPIO: 'pci_wdis#' not found
Command 'gpio' failed: Error -22
After:
u-boot=> gpio input pci_wdis#
gpio: pin pci_wdis# (gpio 103) value is 1
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
This is required to boot a FIT image, otherwise the caam_jr driver is
not initialized and the hash verification fails with the following
error:
Verifying Hash Integrity ... sha256dev_get_priv: null device
CAAM was not setup properly or it is faulty
Signed-off-by: Sergio Prado <sergio.prado@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Change boot device logic to also allow environment stored in fat and
in ext4 when booting from SD or eMMC.
As the boot device check for SD and for eMMC was depending on
ENV_IS_IN_MMC being defined, change the ifdef blocks at
env_get_location to use IS_ENABLED instead for all modes, returning
NOWHERE when no valid mode is found.
This solution is based on (with added SPL support):
Link: https://lore.kernel.org/all/20211020191626.3648540-1-ricardo@foundries.io/
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
nodeoff variable should be variable off returned by fdt_path_offset() so
let's rename it to off.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
The imx8mm_beacon SOM has a QSPI part attached to the FSPI controller.
Update the header and spl files to support booting from NOR flash and
add imx8mm_beacon_fspi_defconfig to support this configuration.
Signed-off-by: Adam Ford <aford173@gmail.com>
In order to use the FlexSPI interface in U-Boot, configure
the alias to make spi0 point to flexspi.
With that enabled, sf probe detects the QSPI part as:
SF: Detected n25q256ax1 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
Signed-off-by: Adam Ford <aford173@gmail.com>
