net: netcp: use separate reg region for individual ethss modules

Ethss has multiple modules within the sub system
 - switch sub system
 - sgmii
 - mdio
 - switch module

NetCP driver re-uses existing davinci mdio driver. It requires to
have its own register region to map the reg space. So restructure
the code to use separate reg region for the individual modules it
manages. Use range property to define register space of NetCP and
use reg property to define individual reg spaces. So MDIO will have
its own reg space to map. This is a pre-requisite to enable MDIO
driver for NetCP.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Mugunthan V N <mugunthanvnm@ti.com>
CC: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
CC: Grygorii Strashko <grygorii.strashko@ti.com>
CC: Christoph Jaeger <cj@linux.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Markus Pargmann <mpa@pengutronix.de>
CC: Kumar Gala <galak@codeaurora.org>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Rob Herring <robh+dt@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 7 deletions

diff --git a/Documentation/devicetree/bindings/net/keystone-netcp.txt b/Documentation/devicetree/bindings/net/keystone-netcp.txt
index f9c07710478d..8368abdd5a34 100644
--- a/Documentation/devicetree/bindings/net/keystone-netcp.txt
+++ b/Documentation/devicetree/bindings/net/keystone-netcp.txt
@@ -49,6 +49,7 @@ Required properties:
 - compatible:   Should be "ti,netcp-1.0"
 - clocks:       phandle to the reference clocks for the subsystem.
 - dma-id:       Navigator packet dma instance id.
+- ranges:       address range of NetCP (includes, Ethernet SS, PA and SA)
 
 Optional properties:
 - reg:          register location and the size for the following register
@@ -66,8 +67,10 @@ Required properties:
 - label:        Must be "netcp-gbe" for 1Gb & "netcp-xgbe" for 10Gb.
 - reg:          register location and the size for the following register
                 regions in the specified order.
-                - subsystem registers
-                - serdes registers
+                - switch subsystem registers
+                - sgmii port3/4 module registers (only for NetCP 1.4)
+                - switch module registers
+                - serdes registers (only for 10G)
 - tx-channel:   the navigator packet dma channel name for tx.
 - tx-queue:     the navigator queue number associated with the tx dma channel.
 - interfaces:   specification for each of the switch port to be registered as a
@@ -120,14 +123,13 @@ Optional properties:
 
 Example binding:
 
-netcp: netcp@2090000 {
+netcp: netcp@2000000 {
         reg = <0x2620110 0x8>;
         reg-names = "efuse";
         compatible = "ti,netcp-1.0";
         #address-cells = <1>;
         #size-cells = <1>;
-        ranges;
-
+        ranges  = <0 0x2000000 0xfffff>;
         clocks = <&papllclk>, <&clkcpgmac>, <&chipclk12>;
         dma-coherent;
         /* big-endian; */
@@ -137,9 +139,9 @@ netcp: netcp@2090000 {
                 #address-cells = <1>;
                 #size-cells = <1>;
                 ranges;
-                gbe@0x2090000 {
+                gbe@90000 {
                         label = "netcp-gbe";
-                        reg = <0x2090000 0xf00>;
+                        reg = <0x90000 0x300>, <0x90400 0x400>, <0x90800 0x700>;
                         /* enable-ale; */
                         tx-queue = <648>;
                         tx-channel = <8>;