Documentation: devicetree: net: optional idm regs for bgmac

Specifying IDM register space in DT is not mendatory for SoCs
where firmware takes care of IDM operations. This patch updates
BGMAC driver's DT binding documentation indicating the same.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Oza Oza <oza.oza@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/brcm,amac.txt b/Documentation/devicetree/bindings/net/brcm,amac.txt
index 2fefa1a44afd4472f75a8fd74b73d7ae6c9083b9..ad16c1f481f77fed199e1c24bc3450aa75fbb970 100644 (file)
--- a/Documentation/devicetree/bindings/net/brcm,amac.txt
+++ b/Documentation/devicetree/bindings/net/brcm,amac.txt
@@ -11,6 +11,7 @@ Required properties:
  - reg-names:  Names of the registers.
                "amac_base":    Address and length of the GMAC registers
                "idm_base":     Address and length of the GMAC IDM registers
+                               (required for NSP and Northstar2)
                "nicpm_base":   Address and length of the NIC Port Manager
                                registers (required for Northstar2)
  - interrupts: Interrupt number