Commit graph

78902 commits

Author SHA1 Message Date
Marek Vasut
d072fdde53 ARM: imx: romapi: Repair FlexSPI NOR boot offset
The FlexSPI NOR boot offset does not require any special handling,
the image_offset is correct in either case (0x1000 for FlexSPI NOR
and 0x8000 for SD/eMMC) and the offset of u-boot.itb from the start
of flash.bin is always 0x58000 on MX8MN/MX8MP, which matches the
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512 - 0x8000 in case
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x300, which is always the
case on MX8MN/MX8MP.

The CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR is really overloaded in
case of the MX8MN/MX8MP, but fixing that needs additional plumbing.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2022-04-12 21:08:23 +02:00
Marek Vasut
1b4f979492 ARM: dts: imx: Add flexspi node to i.MX8MP
Add flexspi DT node matching Linux kernel as of commit
d7cd74466651e ("arm64: dts: imx8mp: Reorder flexspi clock-names entry")

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 21:08:23 +02:00
Marek Vasut
e1aad512a6 spi: nxp_fspi: Add i.MX8MP compatible string
The i.MX8M Mini and i.MX8M Plus flexspi IPs are compatible with one
another, however the linux kernel DT uses separate compatible string
for each SoC. Add the missing i.MX8MP compatible into this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 21:08:23 +02:00
Tim Harvey
8f40e7d29f board: gateworks venice: add support for GPY111 phy
The TI DP83867 phy has been replaced with the MaxLinear GPY111 phy due
to part availability.

Add support for it by adding LED config and dt-prop based internal delay
config tx-delay/rx-delay per PHY ID.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 21:08:22 +02:00
Tim Harvey
255658127b board: venice: add spl_board_loader_name
Implement spl_board_loader_name to provide more meaningful device names
vs MMC1 and MMC2.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2022-04-12 21:08:22 +02:00
Tim Harvey
0f42ffd0c7 imx8m{m,n}-venice-gw7902: add GSC ADC rail for VDD_5P0
The GW7902-C revision adds an ADC for the VDD_5P0 voltage rail.
Add register definitions for it.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 21:08:22 +02:00
Tim Harvey
f3722dd6da imx8m{m,n}_venice: update boot_net script to load fdt
Update the 'boot_net' script to load the fdt with the kernel.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-04-12 21:08:22 +02:00
Heinrich Schuchardt
ca161222e5 ARM: renesas: reduce rcar3_salvator-x image size
rcar3_salvator-x u-boot.img is very close to the 0x100000 size limit.

Enable linked time optimization (LTO).

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-12 20:23:42 +02:00
Marek Vasut
bba6cc7018 ARM: dts: imx: Add support for Data Modul i.MX8M Mini eDM SBC
Add support for Data Modul i.MX8M Mini eDM SBC board. This is an
evaluation board for various custom display units. Currently
supported are serial console, ethernet, eMMC, SD, SPI NOR,
USB host and USB OTG.

Reviewed-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2022-04-12 19:10:44 +02:00
Fabio Estevam
fd44d48f24 imx8mm-cl-iot-gate: Add redundand environment support
Add redundand environment support as it is required
by SWUpdate.

While at it, also adjust the CONFIG_ENV_OFFSET to a more appropriate
larger offset as done on other i.MX8M defconfigs.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:44 +02:00
Fabio Estevam
ea10bea68d imx8mm-cl-iot-gate: Retrieve the serial number from EEPROM
The serial number is located at offset 0x14 of the EEPROM
under i2c0 bus at address 0x54.

To print the serial number in Linux:

SERNUM=$(cat /proc/device-tree/serial-number)
echo $SERNUM

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:44 +02:00
Fabio Estevam
79bc9dcfa2 imx8mm-cl-iot-gate: Retrieve the MAC address from EEPROM
Currently the eth0 MAC address is randomly assigned.

Retrieve the MAC address from EEPROM.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:44 +02:00
Fabio Estevam
6924bc7ca2 imx8mm-cl-iot-gate: Retrieve the DDR type from EEPROM
Currently, the DDR type is retrieved by iteracting inside an array
of possible DDR types.

This may take saveral attempts, which slows the overall U-Boot process
and does not provide a good user experience:

U-Boot SPL 2021.07 (Feb 28 2022 - 06:39:32 +0000)
DDRINFO: Cfg attempt: [ 1/6 ]
DDRINFO(M): mr5-8 [ 0xff000010 ]
DDRINFO(T): mr5-8 [ 0x5000010 ]
resetting ...

U-Boot SPL 2021.07 (Feb 28 2022 - 06:39:32 +0000)
DDRINFO: Cfg attempt: [ 2/6 ]
DDRINFO(M): mr5-8 [ 0xff000010 ]
DDRINFO(T): mr5-8 [ 0x1061010 ]
resetting ...

U-Boot SPL 2021.07 (Feb 28 2022 - 06:39:32 +0000)
DDRINFO: Cfg attempt: [ 3/6 ]
DDRINFO(M): mr5-8 [ 0xff000010 ]
DDRINFO(T): mr5-8 [ 0xff000010 ]
Normal Boot
WDT:   Not starting
Trying to boot from MMC2
NOTICE:  BL31: v2.5(release):v2.5
NOTICE:  BL31: Built : 07:12:44, Jan 24 2022

Improve the boot time by retrieving the correct DDR information from
the EEPROM:

U-Boot SPL 2022.04-rc4-00045-g6d02bc40d58c (Mar 19 2022 - 08:22:29 -0300)
DDRINFO(D): Kingston 4096G
DDRINFO(M): mr5-8 [ 0xff000010 ]
DDRINFO(E): mr5-8 [ 0xff000010 ]
Normal Boot
WDT:   Started watchdog@30280000 with servicing (60s timeout)
Trying to boot from MMC2
NOTICE:  BL31: v2.5(release):v2.5
NOTICE:  BL31: Built : 22:28:11, Mar 15 2022

Based on the original code from Compulab's U-Boot.

Tested on a imx8mm-cl-iot-gate board populated with 4GB of RAM.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:44 +02:00
Fabio Estevam
0bb304e363 imx8mm-cl-iot-gate: Add SPL EEPROM support
imx8mm-cl-iot-gate supports multiple DDR sizes and models.

The DDR type can be retrieved from the EEPROM, so add SPL code
that can be used to get the DDR information.

Based on the original code from Compulab's U-Boot.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:44 +02:00
Ariel D'Alessandro
6c317fedc7 bsh: imx8mn-smm-s2/pro: Add iMX8MN BSH SMM S2 boards
Introduce BSH SystemMaster (SMM) S2 board family, which consists of:
iMX8MN SMM S2 and iMX8MN SMM S2 PRO boards.

Add support for iMX8MN BSH SMM S2 board:

- 256 MiB DDR3 RAM
- 512MiB Nand
- USBOTG1 peripheral - fastboot.
- 100Mbit Ethernet

Add support for iMX8MN BSH SMM S2 PRO board:

- 512 MiB DDR3 RAM
- 8 GiB eMMC
- USBOTG1 peripheral - fastboot.
- 100Mbit Ethernet

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
2022-04-12 19:10:44 +02:00
Michael Trimarchi
a2f5c9366a net: phy: nxp-tja11xx: Add NXP TJA11xx PHY driver
Add driver for the NXP TJA1100 and TJA1101 PHYs. These PHYs are special
BroadRReach 100BaseT1 PHYs used in automotive.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-12 19:10:44 +02:00
Ariel D'Alessandro
087baf80ec net: phy: Add phy_modify() accessor
Add read-modify-write unlocked accessor for accessing a PHY register.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-04-12 19:10:44 +02:00
Ariel D'Alessandro
d7db0e6df3 iopoll: Extend read_poll_timeout macro to support variable parameters
This macro currently supports only one parameter. Based on Linux iopoll,
let's extend read_poll_timeout common API to allow multiple variable
parameters.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
2022-04-12 19:10:44 +02:00
Ariel D'Alessandro
01c67a381c phy: nxp-c45-tja11xx: Rename functions to be c45 tja11xx specific
This driver supports NXP C45 TJA11XX PHYs, but there're also other NXP
TJA11XX PHYs. Let's rename functions in this driver to be c45 variant
specific, so further drivers can be introduced adding support for NXP
TJA11XX PHYs.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
2022-04-12 19:10:44 +02:00
Michael Trimarchi
1dd4985ed4 imx8m: add init_nand_clk
Add init_nand_clk to enable gpmi nand clock. Since i.MX8M not use CCF,
so we still use legacy mode to configure the clock.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
2022-04-12 19:10:44 +02:00
Michael Trimarchi
1247c444d6 imx8m: add regs used by GPMI
Add regs used by GPMI

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
2022-04-12 19:10:44 +02:00
Marek Vasut
9f3370f800 ARM: imx8mm: verdin-imx8mm: Drop superfluous header
The power/bd71837.h should no longer be included, since V1.1 SoM
uses only the PCA9450 PMIC and the BD71837 support was removed.
Drop the header too.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Max Krummenacher <max.krummenacher@toradex.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Tommaso Merciai
d101661087 driver: pwm: pwm-imx: separe dm from non dm implementation
Separe dm implementation from non dm implementation of pwm-imx
driver using CONFIG_DM_PWM

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
2022-04-12 19:10:44 +02:00
Tommaso Merciai
2c432563df drivers: pwm: pwm-imx: move pwm-imx-util into pwm-imx
Move pwm_imx_get_parms, pwm_id_to_reg functions into pwm-imx.c
and drop off pwm-imx-util.c

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
2022-04-12 19:10:44 +02:00
Peng Fan
ec191a8176 imx: mx7dsabresd: enable DM_SERIAL
Enable CONFIG_DM_SERIAL, and `dm tree` could show:
 serial        1  [   ]   serial_mxc            |       |-- serial@30a80000

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:44 +02:00
Peng Fan
eace942951 imx8mq: soc: Set the BYPASS ID SWAP bit (GPR10 bit 1)
Set the BYPASS ID SWAP bit (GPR10 bit 1).
The ID SWAP function randomly make TZASC grant non-secure access to
secure memory. TZASC ID SWAP should be bypassed by setting the bit
TZASC_ID_SWAP_BYPASS(bit 1) in IOMUX_GPR10 register.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:44 +02:00
Marcel Ziswiler
a398d7d2d4 board: colibri-imx6ull: fix detecting sd card
Turns out on certain carrier boards (e.g. Iris V2) and under certain
circumstances (e.g. after a software reset) the SD card may have been
left in a strange state which later failed as follows:

Colibri iMX6ULL # mmc dev 0
Card did not respond to voltage select! : -110

Fix this as follows:
- Re-name the signaling voltage rail regulator from vmmc to vqmmc.
- Fix the name of the GPIO property to gpios.
- Specify 4-bit bus width, no write-protect capability and no 1.8
  volt signaling voltage capability.
- Fix the clock vs. command pull-up vs. push-pull configuration.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Marcel Ziswiler
9cec652ec5 configs: colibri-imx6ull/-emmc: use micrel ksz8xxx phy driver
Use the Micrel KSZ8xxx specific Ethernet PHY driver rather than the
generic one.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Marcel Ziswiler
0fed070c38 colibri-imx6ull: fix nand bch geometry
Fix NAND BCH geometry as otherwise the following errors are observed
upon boot:

...
Loading Environment from NAND... NAND read from offset 380000 failed -74
...
NAND read from offset 800 failed -74
...
ubi0 error: ubi_io_read: error -74 (ECC error) while reading 64 bytes
 from PEB 0:0, read 64 bytes
...

Fixes: ed48490f8d
("mtd: gpmi: fix the bch setting backward compatible issue")
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Oleksii Bidnichenko
192e7012c2 disk: part: add the device search failed log msg
Add missing error message to blk_get_device_part_str.

Signed-off-by: Oleksii Bidnichenko <oleksii.bidnichenko@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Philippe Schenker
aa6f57d877 board: colibri-imx6ull: fix detecting ethernet phy
Now that it is possible to use regulator-fixed-clock make use
of it. This makes U-Boot detect the PHY on first cold-boot.

This commit also adjusts the code in setup_fec and follows
how it is done in mx6ullevk.c

This commit also slows down the boot-process by about 150ms
as it now waits for the regulator-fixed-clock voltage that
drives the PHY to go up.
If you rely on very fast boot-speeds and don't need ethernet
for your boot-process you can safely revert the changes on
imx6ull-colibri.dtsi

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Philippe Schenker
f3b5100aff regulator: fixed: add possibility to enable by clock
This commit adds the possibility to choose the compatible
"regulator-fixed-clock" in devicetree.

This is a special case of regulator-fixed where a clock has to
be used to switch the regulator on and off.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Philippe Schenker
885dcc36af board: colibri-imx6ull: Do not leave variant variable unset
Toradex uses the variable variant to distinguish between modules with
eMMC, NAND with wifi and NAND without wifi.
This variable is set on every boot. Set this variable also if we have a
NAND module without wifi to prevent issues.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Denys Drozdov
c1e6576162 apalis-tk1: avoid save environment unasked
U-Boot should never save the environment unasked.
This also avoids storing broken fdt_module to flash.

Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Denys Drozdov
b8055ee176 apalis-imx6: avoid save environment unasked
U-Boot should never save the environment unasked.
This also avoids storing broken ftd_file to eMMC.

Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Oleksandr Suvorov
338b9b9a19 colibri-imx6ull: drop vidargs and remove video= settings
Since we envision using overlays for display interfaces, the video=
settings within vidargs are obsolete. Remove these settings from the
U-Boot.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Philippe Schenker
05cc835135 include: colibri_vf: add missing tdxargs variable
All the other NAND-based boards have tdxargs specified for setting
manual kernel command-line arguments.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Marcel Ziswiler
4551e18987 configs: verdin-imx8mm: verdin-imx8mp: enable dm serial
Enable driver model for serial.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Marcel Ziswiler
310de88287 arm64: dts: imx8mm-u-boot.dtsi: imx8mp-u-boot.dtsi: use atf-bl31 type
Explicitly use the atf-bl31 type for the bl31.bin atf-blob. This uses
the path from the BL31 environment variable, if defined.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-04-12 19:10:44 +02:00
Marek Vasut
34694f1a3e ARM: imx8mm: verdin-imx8mm: Rework board_early_init()
Rename board_early_init_f() to board_early_init(), since this function
has nothing to do with actual board_early_init_f() as used throughout
U-Boot. The board_early_init() is function local to this board used to
configure UART and WDT pinmux. Wrap init_uart_clk() into this function
so that early UART init would be all in one place. Turn the function
into __weak one, so it could be overridden in case custom carrier board
uses different UART or needs custom IOMUX settings.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Max Krummenacher <max.krummenacher@toradex.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2022-04-12 19:10:44 +02:00
Ye Li
1c9bc0fffa imx8m: soc: Relocate u-boot to the top DDR in 4GB space
The EFI memory init uses gd->ram_top for conventional memory. In
current implementation, the ram_top is below optee address. This cause
grub failed to allocation memory for initrd.
The change updates DDR bank setup functions to place the u-boot at top
DDR in 4GB space.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:44 +02:00
Peng Fan
1166bd433a imx8m: soc: drop phy-reset-gpios for fec
Need to drop phy-reset-gpios before booting linux, this property
is legacy property and replaced with reset-gpios.

If provide both, kernel would failed to request the same gpio twice
and cause fec not work.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:44 +02:00
Peng Fan
8325ef3d77 imx: imx8m: soc: runtime drop extcon property from usbotg node
The extcon is an decrepted property and not used by upstream Linux and
NXP 5.10 kernel, so we remove it before kicking linux in case it is in
dts. Otherwise distro kernel will not able to have usb function.

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:44 +02:00
Peng Fan
35bb60787b imx: imx8mp: disable fused IP for UltraLite
Beside the fused modules on iMX8MP Lite, this part has also fused
GPU3D/2D, LVDS and MIPI DSI.
So we have to disable them for kernel and also disable MIPI DSI
in u-boot DTS for splash screen at runtime.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:44 +02:00
Peng Fan
36bfd71c92 imx: imx8mp: detect i.MX8MP UltraLite when get cpu rev
Detect i.MX8MP UltraLite in get_cpu_variant_type

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:43 +02:00
Peng Fan
fd437083b8 imx: imx8mp: Add iMX8MP UltraLite Part cpu type
Add i.MX8MP UltraLite Part CPU type

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:43 +02:00
Francesco Dolcini
aa42894471 mx6: ddr: Wait before issuing the first MRS cmd
Wait 1ms before issuing the first MRS command to write DDR3 Mode
registers.

There is a requirement to wait a minimum time before issuing command to
the DDR3 device, according to the JEDEC standard this time is 500us
(after RESET_n is de-asserted until CKE becomes active) + tXPR (Reset
CKE Exit time, maximum value 360ns).

It seems that for some reason this is not enforced by the MMDC
controller.

Without this change we experienced random memory initialization failures
with about 2% boot failure rate on specific problematic boards, after
this change we were able to do more than 10.000 power-cycle without a
single failure.

Fixes: fe0f7f7842 ("mx6: add mmdc configuration for MX6Q/MX6DL")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:43 +02:00
Francesco Dolcini
09dbac8174 mx6: ddr: Restore ralat/walat in write level calibration
The current DDR write level calibration routine always overwrite
the ralat/walat fields to their maximum value, just save
the existing values at the beginning of the calibration routine
and restore it at the end.

In case the delay is estimated by the user to be more than one cycle the
walat should be configured according to that, this is not
automatically done.  From the i.MX6 RM:

   The user should read the results of the associated delay-line at
   MPWLDECTRL#[WL_DL_ABS_OFFSET#] and in case the user estimates that the
   reasonable delay may be above 1 cycle then the user should indicate it at
   MPWLDECTRL#[WL_CYC_DEL#]. Moreover the user should indicate it in
   MDMISC[WALAT] field. For example, if the result of the write leveling calibration
   is 100/256 parts of a cycle, but the user estimates that the delay is above 2 cycles
   then MPWLDECTRL#[WL_CYC_DEL#] should be configured to 2, so the total
   delay will be 2 and 100/256 parts of a cycle

Probably it would just possible to not overwrite the mdmisc register in
the first place, since this is not present in the write_level_calib() example
in NXP AN4467 nor in the i.MX6 RM (44.11.6.1 Hardware Write Leveling
Calibration).

Fixes: d339f16911 ("arm: imx6: Add DDR3 calibration code for MX6 Q/D/DL")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-04-12 19:10:43 +02:00
Peng Fan
ed6ba46e3b misc: imx8ulp: Update fuse driver
- According to S400 API, the fuse bank 25 (Testconfig2) is able to
access. Add it into driver's mapping table.
- According to FSB words list, the reserved 48 words are ahead of
the bank 5 and bank 6. Fix the wrong position.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:43 +02:00
Ye Li
c41ffaa253 imx: imx8ulp_evk: Enable multiple env storage devices
Enable multiple storages for u-boot env:
MMC or SPI flash or NOWHERE for usb
so u-boot can runtime select the storage flash according to boot device.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-12 19:10:43 +02:00