driver/memory:Move Freescale IFC driver to a common driver

 Freescale IFC controller has been used for mpc8xxx. It will be used
 for ARM-based SoC as well. This patch moves the driver to driver/memory
 and fix the header file includes.

  Also remove module_platform_driver() and  instead call
  platform_driver_register() from subsys_initcall() to make sure this module
  has been loaded before MTD partition parsing starts.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
new file mode 100644
index 000000000000..d5e370450ac0
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
@@ -0,0 +1,79 @@
+Integrated Flash Controller
+
+Properties:
+- name : Should be ifc
+- compatible : should contain "fsl,ifc". The version of the integrated
+               flash controller can be found in the IFC_REV register at
+               offset zero.
+
+- #address-cells : Should be either two or three.  The first cell is the
+                   chipselect number, and the remaining cells are the
+                   offset into the chipselect.
+- #size-cells : Either one or two, depending on how large each chipselect
+                can be.
+- reg : Offset and length of the register set for the device
+- interrupts: IFC may have one or two interrupts.  If two interrupt
+              specifiers are present, the first is the "common"
+              interrupt (CM_EVTER_STAT), and the second is the NAND
+              interrupt (NAND_EVTER_STAT).  If there is only one,
+              that interrupt reports both types of event.
+
+
+- ranges : Each range corresponds to a single chipselect, and covers
+           the entire access window as configured.
+
+Child device nodes describe the devices connected to IFC such as NOR (e.g.
+cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices
+like FPGAs, CPLDs, etc.
+
+Example:
+
+        ifc@ffe1e000 {
+                compatible = "fsl,ifc", "simple-bus";
+                #address-cells = <2>;
+                #size-cells = <1>;
+                reg = <0x0 0xffe1e000 0 0x2000>;
+                interrupts = <16 2 19 2>;
+
+                /* NOR, NAND Flashes and CPLD on board */
+                ranges = <0x0 0x0 0x0 0xee000000 0x02000000
+                          0x1 0x0 0x0 0xffa00000 0x00010000
+                          0x3 0x0 0x0 0xffb00000 0x00020000>;
+
+                flash@0,0 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        compatible = "cfi-flash";
+                        reg = <0x0 0x0 0x2000000>;
+                        bank-width = <2>;
+                        device-width = <1>;
+
+                        partition@0 {
+                                /* 32MB for user data */
+                                reg = <0x0 0x02000000>;
+                                label = "NOR Data";
+                        };
+                };
+
+                flash@1,0 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        compatible = "fsl,ifc-nand";
+                        reg = <0x1 0x0 0x10000>;
+
+                        partition@0 {
+                                /* This location must not be altered  */
+                                /* 1MB for u-boot Bootloader Image */
+                                reg = <0x0 0x00100000>;
+                                label = "NAND U-Boot Image";
+                                read-only;
+                        };
+                };
+
+                cpld@3,0 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        compatible = "fsl,p1010rdb-cpld";
+                        reg = <0x3 0x0 0x000001f>;
+                };
+        };