29 Aug
2016
29 Aug
'16
2:01 p.m.
On Wed, Aug 24, 2016 at 03:35:50PM +0300, Roger Quadros wrote:
Both ethernet ports can be used as CPSW ethernet (RMII mode) or PRU ethernet (MII mode) by setting the jumper near the port. Read the jumper value and set the pinmux, external mux and PHY clock accordingly.
As jumper line is overridden by PHY RX_DV pin immediately after bootstrap (power-up/reset), we have to use GPIO edge detection to capture the jumper line status.
As u-boot doesn't provide any infrastructure for GPIO edge detection, we directly access the GPIO registers.
Signed-off-by: Roger Quadros rogerq@ti.com
Reviewed-by: Tom Rini trini@konsulko.com
--
Tom