linux-can-next-for-3.16-20140526

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Merge tag 'linux-can-next-for-3.16-20140526' of git://gitorious.org/linux-can/linux-can-next

Add new xilinx CAN driver.

Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/can/xilinx_can.txt

@@ -0,0 +1,44 @@
+Xilinx Axi CAN/Zynq CANPS controller Device Tree Bindings
+---------------------------------------------------------
+
+Required properties:
+- compatible		: Should be "xlnx,zynq-can-1.0" for Zynq CAN
+			  controllers and "xlnx,axi-can-1.00.a" for Axi CAN
+			  controllers.
+- reg			: Physical base address and size of the Axi CAN/Zynq
+			  CANPS registers map.
+- interrupts		: Property with a value describing the interrupt
+			  number.
+- interrupt-parent	: Must be core interrupt controller
+- clock-names		: List of input clock names - "can_clk", "pclk"
+			  (For CANPS), "can_clk" , "s_axi_aclk"(For AXI CAN)
+			  (See clock bindings for details).
+- clocks		: Clock phandles (see clock bindings for details).
+- tx-fifo-depth		: Can Tx fifo depth.
+- rx-fifo-depth		: Can Rx fifo depth.
+
+
+Example:
+
+For Zynq CANPS Dts file:
+	zynq_can_0: can@e0008000 {
+			compatible = "xlnx,zynq-can-1.0";
+			clocks = <&clkc 19>, <&clkc 36>;
+			clock-names = "can_clk", "pclk";
+			reg = <0xe0008000 0x1000>;
+			interrupts = <0 28 4>;
+			interrupt-parent = <&intc>;
+			tx-fifo-depth = <0x40>;
+			rx-fifo-depth = <0x40>;
+		};
+For Axi CAN Dts file:
+	axi_can_0: axi-can@40000000 {
+			compatible = "xlnx,axi-can-1.00.a";
+			clocks = <&clkc 0>, <&clkc 1>;
+			clock-names = "can_clk","s_axi_aclk" ;
+			reg = <0x40000000 0x10000>;
+			interrupt-parent = <&intc>;
+			interrupts = <0 59 1>;
+			tx-fifo-depth = <0x40>;
+			rx-fifo-depth = <0x40>;
+		};

drivers/net/can/Kconfig

@@ -129,6 +129,14 @@ config CAN_RCAR
 	  To compile this driver as a module, choose M here: the module will
 	  be called rcar_can.
 
+config CAN_XILINXCAN
+	tristate "Xilinx CAN"
+	depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
+	depends on COMMON_CLK && HAS_IOMEM
+	---help---
+	  Xilinx CAN driver. This driver supports both soft AXI CAN IP and
+	  Zynq CANPS IP.
+
 source "drivers/net/can/mscan/Kconfig"
 
 source "drivers/net/can/sja1000/Kconfig"

drivers/net/can/Makefile

@@ -26,5 +26,6 @@ obj-$(CONFIG_CAN_FLEXCAN)	+= flexcan.o
 obj-$(CONFIG_PCH_CAN)		+= pch_can.o
 obj-$(CONFIG_CAN_GRCAN)		+= grcan.o
 obj-$(CONFIG_CAN_RCAR)		+= rcar_can.o
+obj-$(CONFIG_CAN_XILINXCAN)	+= xilinx_can.o
 
 ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG