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 <[email protected]>
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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
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