soc/intel/quark: Enable ESRAM

The Quark SoC uses ESRAM instead of cache-as-RAM.  This code requires
that utils/xcompile/xcompile change the machine architecture from i686
to i586 to ensure that the Quark does not attempt to execute unsupported
instructions:

*  Adjust Makefile.inc to add the RMU to the coreboot image
*  Add code to enable the ESRAM

Directly use the QuarkSocPkg/QuarkNorthCluster/Include/QuarkNcSocId.h
file from the EDK2 tree (https://github.com/tianocore/edk2.git) to
enable
easy differences and correct issues in coreboot that were found in EDK2.

Testing on Galileo:
*  Edit the src/mainboard/intel/galileo/Makefile.inc file
   *  Add "select ADD_RMU_FILE"
*  Place the rmu.bin file in the location specified by CONFIG_RMU_FILE
*  Remove power from the board
*  Apply power to the board
*  Testing is successful if the SD LED is on indicating that the end of
   esram_init.inc was reached

Change-Id: I91d919da144bb72a5d4c4a8050ffab256632a395
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/13440
Tested-by: build bot (Jenkins)
Reviewed-by: FEI WANG <wangfei.jimei@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/intel/quark/Kconfig

@@ -28,4 +28,48 @@ config CPU_SPECIFIC_OPTIONS
 	select ARCH_VERSTAGE_X86_32
 	select USE_MARCH_586
 
+#####
+# Flash layout
+#     Specify the size of the coreboot file system in the read-only
+#     (recovery) portion of the flash part.
+#####
+
+config CBFS_SIZE
+	hex
+	default 0x200000
+	help
+	  Specify the size of the coreboot file system in the read-only (recovery)
+	  portion of the flash part.  On Quark systems the firmware image stores
+	  more than just coreboot, including:
+	   - The chipset microcode (RMU) binary file located at 0xFFF00000
+	   - Intel Trusted Execution Engine firmware
+
+#####
+# RMU binary
+#     The following options control the Quark chipset microcode file
+#     placement in the flash image.  This file is required to bring
+#     the Quark processor out of reset.
+#####
+
+config ADD_RMU_FILE
+	bool "Should the RMU binary be added to the flash image?"
+	default n
+	help
+	  The RMU file is required to get the chip out of reset.
+
+config RMU_FILE
+	string
+	default "3rdparty/blobs/soc/intel/quark/rmu.bin"
+	depends on ADD_RMU_FILE
+	help
+	  The path and filename of the Intel Quark RMU binary.
+
+config RMU_LOC
+	hex
+	default 0xfff00000
+	depends on ADD_RMU_FILE
+	help
+	  The location in CBFS that the RMU is located. It must match the
+	  strap-determined base address.
+
 endif # SOC_INTEL_QUARK