FROMLIST: board: rockchip: unblock CAN bus in spl_board_init on JaguarHEADv2024.07-puma

GPIO0_B7 is routed to TXI of the on-board CAN transceiver. The
line has a pull-down per SoC default.

This means the CAN transceiver transmits a dominant zero
and blocks the CAN bus until Linux boots and reconfigures the pin.

Let's switch to pull-up as soon as we can (i.e. in SPL).
This cuts down the "bus is blocked" time from 10 seconds to < 1 second.

Of course, to this needs CONFIG_SPL_BOARD_INIT, so enable it
the Jaguar defconfig.

Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@cherry.de>
Link: https://lore.kernel.org/u-boot/20250617084253.1756035-1-jakob.unterwurzacher@cherry.de/
Relates-to: JAG-403
Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@cherry.de>

0 files changed, 0 insertions, 0 deletions