configs: spresense: add I2CTOOL support and extend GPIO for future use
* arch: arm: cxd56xx: add delay support
add delay support for cxd56xx chip
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* configs: spresense: register I2C busses
for development is usefull to register I2C busses when the I2CTOOL
is built
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* configs:spresense: enable GPIO interface
enable GPIO interface on spresense board
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Approved-by: Gregory Nutt <gnutt@nuttx.org>
