Hello Priyanka,
Am 18.02.2020 um 10:05 schrieb Heiko Schocher:
add DM support for parallel I/O ports on QUICC Engine Block
Signed-off-by: Heiko Schocher hs@denx.de
Travis build:
https://travis-ci.org/hsdenx/u-boot-test/builds/651400509
Open questions / discussion:
may we should move this part to drivers/pinctrl ?
I let the old none DM based implementation in code so boards should work with old implementation.
This should be removed if all boards are converted to DM/DTS.
Unfortunately linux DTS does not use "pinctrl-" properties, instead "pio-handle" properties.
Even worser old U-Boot code initializes all pins defined in "const qe_iop_conf_t qe_iop_conf_tab[]" table in board code. As linux does the same I decided to also scan through all subnodes containing "pio-map" property and initialize them too.
The proper solution would be to check for "pio-handle" when a device is probed.
arch/powerpc/cpu/mpc83xx/cpu_init.c | 8 ++ arch/powerpc/cpu/mpc83xx/qe_io.c | 193 +++++++++++++++++++++++++++- include/fsl_qe.h | 3 + 3 files changed, 201 insertions(+), 3 deletions(-)
Any comments?
Thanks!
bye, Heiko