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Fabio Estevam authored
Calling gpio_request() prior to its usage is now mandatory.

This fixes the following GPIO errors:

U-Boot SPL 2022.01-rc3-00067-g7a5be871c0ec (Dec 18 2021 - 17:45:07 -0300)
Trying to boot from MMC1

U-Boot 2022.01-rc3-00067-g7a5be871c0ec (Dec 18 2021 - 17:45:07 -0300)

CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: WDOG
Model: Udoo i.MX6 Quad Board
Board: Udoo Quad
DRAM:  1 GiB
MMC:   FSL_SDHC: 2
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
gpio@20a0000: set_dir_flags: error: gpio GPIO2_31 not reserved
gpio@20a4000: set_dir_flags: error: gpio GPIO3_23 not reserved
gpio@20b0000: set_dir_flags: error: gpio GPIO6_24 not reserved
gpio@20b0000: set_dir_flags: error: gpio GPIO6_25 not reserved
gpio@20b0000: set_dir_flags: error: gpio GPIO6_27 not reserved
gpio@20b0000: set_dir_flags: error: gpio GPIO6_28 not reserved
gpio@20b0000: set_dir_flags: error: gpio GPIO6_29 not reserved
gpio@20a4000: set_value: error: gpio GPIO3_23 not reserved
Net:   Could not get PHY for FEC0: addr -2
No ethernet found.

Signed-off-by: default avatarFabio Estevam <festevam@gmail.com>
Reviewed-by: default avatarPeter Robinson <pbrobinson@gmail.com>
c280ec21
History
How to use U-Boot on MX6Q/DL Udoo boards
----------------------------------------

- Build U-Boot for MX6Q/DL Udoo boards:

$ make mrproper
$ make udoo_defconfig
$ make

This will generate the SPL image called SPL and the u-boot.img.

- Flash the SPL image into the SD card:

sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync

- Flash the u-boot.img image into the SD card:

sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync

- Insert the SD card in the board, power it up and U-Boot messages should
come up.