[U-Boot] [U-Boot, v3, 09/20] net: gmac_rockchip: Add rk3328 gmac support

[Philipp Tomsich]

> The GMAC2IO in the RK3328 once again is identical to the incarnation in
> the RK3288 and the RK3399, except for where some of the configuration
> and control registers are located in the GRF.
> 
> This adds the RK3328-specific logic necessary to reuse this driver.
> 
> Signed-off-by: David Wu <david.wu at rock-chips.com>
> ---
> 
> Changes in v3:
> - None
> 
> Changes in v2:
> - New patch
> 
>  drivers/net/gmac_rockchip.c | 85 +++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 85 insertions(+)
> 

Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>