dts: bindings: remove AMBA AHB bus width parameter from xlnx,gem binding

This parameter no longer needs to be configured at the SoC level in
the declarations of the GEM controller instances (used to require
different values for the Zynq-7000 and the ZynqMP) as the value matching
the current target SoC is now being read at run-time from a design
configuration register.

Signed-off-by: Immo Birnbaum <[email protected]>

Author: ibirnbaum

dts/bindings/ethernet/xlnx,gem.yaml

@@ -109,15 +109,6 @@ properties:
       ists within the current system setup that triggers the transmission
       of packets from within the context of the system work queue!
 
-  amba-ahb-dbus-width:
-    type: int
-    required: true
-    description: AMBA AHB data bus width.
-    enum:
-      - 0
-      - 1
-      - 2
-
   amba-ahb-burst-length:
     type: int
     required: true

include/zephyr/dt-bindings/ethernet/xlnx_gem.h

@@ -39,11 +39,6 @@
 #define XLNX_GEM_LINK_SPEED_100MBIT 2
 #define XLNX_GEM_LINK_SPEED_1GBIT   3
 
-/* AMBA AHB data bus width */
-#define XLNX_GEM_AMBA_AHB_DBUS_WIDTH_32BIT  0
-#define XLNX_GEM_AMBA_AHB_DBUS_WIDTH_64BIT  1
-#define XLNX_GEM_AMBA_AHB_DBUS_WIDTH_128BIT 2
-
 /* AMBA AHB burst length */
 #define XLNX_GEM_AMBA_AHB_BURST_SINGLE 1
 #define XLNX_GEM_AMBA_AHB_BURST_INCR4  4