cmd: spi: Permit setting bus frequency

The 'sspi' command hard-coded 1 MHz bus frequency for all transmissions.
Allow changing that at runtime by specifying '@freq' bus frequency in Hz.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
1 file changed